(function () {
var requirejs, require, define;
(function (undef) {
var main, req, makeMap, handlers,
defined = {},
waiting = {},
config = {},
defining = {},
hasOwn = Object.prototype.hasOwnProperty,
aps = [].slice,
jsSuffixRegExp = /\.js$/;
function hasProp(obj, prop) {
return hasOwn.call(obj, prop);
}
/**
* Given a relative module name, like ./something, normalize it to
* a real name that can be mapped to a path.
* @param {String} name the relative name
* @param {String} baseName a real name that the name arg is relative
* to.
* @returns {String} normalized name
*/
function normalize(name, baseName) {
var nameParts, nameSegment, mapValue, foundMap, lastIndex,
foundI, foundStarMap, starI, i, j, part, normalizedBaseParts,
baseParts = baseName && baseName.split("/"),
map = config.map,
starMap = (map && map['*']) || {};
//Adjust any relative paths.
if (name) {
name = name.split('/');
lastIndex = name.length - 1;
// If wanting node ID compatibility, strip .js from end
// of IDs. Have to do this here, and not in nameToUrl
// because node allows either .js or non .js to map
// to same file.
if (config.nodeIdCompat && jsSuffixRegExp.test(name[lastIndex])) {
name[lastIndex] = name[lastIndex].replace(jsSuffixRegExp, '');
}
// Starts with a '.' so need the baseName
if (name[0].charAt(0) === '.' && baseParts) {
//Convert baseName to array, and lop off the last part,
//so that . matches that 'directory' and not name of the baseName's
//module. For instance, baseName of 'one/two/three', maps to
//'one/two/three.js', but we want the directory, 'one/two' for
//this normalization.
normalizedBaseParts = baseParts.slice(0, baseParts.length - 1);
name = normalizedBaseParts.concat(name);
}
//start trimDots
for (i = 0; i < name.length; i++) {
part = name[i];
if (part === '.') {
name.splice(i, 1);
i -= 1;
} else if (part === '..') {
// If at the start, or previous value is still ..,
// keep them so that when converted to a path it may
// still work when converted to a path, even though
// as an ID it is less than ideal. In larger point
// releases, may be better to just kick out an error.
if (i === 0 || (i === 1 && name[2] === '..') || name[i - 1] === '..') {
continue;
} else if (i > 0) {
name.splice(i - 1, 2);
i -= 2;
}
}
}
//end trimDots
name = name.join('/');
}
//Apply map config if available.
if ((baseParts || starMap) && map) {
nameParts = name.split('/');
for (i = nameParts.length; i > 0; i -= 1) {
nameSegment = nameParts.slice(0, i).join("/");
if (baseParts) {
//Find the longest baseName segment match in the config.
//So, do joins on the biggest to smallest lengths of baseParts.
for (j = baseParts.length; j > 0; j -= 1) {
mapValue = map[baseParts.slice(0, j).join('/')];
//baseName segment has config, find if it has one for
//this name.
if (mapValue) {
mapValue = mapValue[nameSegment];
if (mapValue) {
//Match, update name to the new value.
foundMap = mapValue;
foundI = i;
break;
}
}
}
}
if (foundMap) {
break;
}
//Check for a star map match, but just hold on to it,
//if there is a shorter segment match later in a matching
//config, then favor over this star map.
if (!foundStarMap && starMap && starMap[nameSegment]) {
foundStarMap = starMap[nameSegment];
starI = i;
}
}
if (!foundMap && foundStarMap) {
foundMap = foundStarMap;
foundI = starI;
}
if (foundMap) {
nameParts.splice(0, foundI, foundMap);
name = nameParts.join('/');
}
}
return name;
}
function makeRequire(relName, forceSync) {
return function () {
//A version of a require function that passes a moduleName
//value for items that may need to
//look up paths relative to the moduleName
var args = aps.call(arguments, 0);
//If first arg is not require('string'), and there is only
//one arg, it is the array form without a callback. Insert
//a null so that the following concat is correct.
if (typeof args[0] !== 'string' && args.length === 1) {
args.push(null);
}
return req.apply(undef, args.concat([relName, forceSync]));
};
}
function makeNormalize(relName) {
return function (name) {
return normalize(name, relName);
};
}
function makeLoad(depName) {
return function (value) {
defined[depName] = value;
};
}
function callDep(name) {
if (hasProp(waiting, name)) {
var args = waiting[name];
delete waiting[name];
defining[name] = true;
main.apply(undef, args);
}
if (!hasProp(defined, name) && !hasProp(defining, name)) {
throw new Error('No ' + name);
}
return defined[name];
}
//Turns a plugin!resource to [plugin, resource]
//with the plugin being undefined if the name
//did not have a plugin prefix.
function splitPrefix(name) {
var prefix,
index = name ? name.indexOf('!') : -1;
if (index > -1) {
prefix = name.substring(0, index);
name = name.substring(index + 1, name.length);
}
return [prefix, name];
}
//Creates a parts array for a relName where first part is plugin ID,
//second part is resource ID. Assumes relName has already been normalized.
function makeRelParts(relName) {
return relName ? splitPrefix(relName) : [];
}
/**
* Makes a name map, normalizing the name, and using a plugin
* for normalization if necessary. Grabs a ref to plugin
* too, as an optimization.
*/
makeMap = function (name, relParts) {
var plugin,
parts = splitPrefix(name),
prefix = parts[0],
relResourceName = relParts[1];
name = parts[1];
if (prefix) {
prefix = normalize(prefix, relResourceName);
plugin = callDep(prefix);
}
//Normalize according
if (prefix) {
if (plugin && plugin.normalize) {
name = plugin.normalize(name, makeNormalize(relResourceName));
} else {
name = normalize(name, relResourceName);
}
} else {
name = normalize(name, relResourceName);
parts = splitPrefix(name);
prefix = parts[0];
name = parts[1];
if (prefix) {
plugin = callDep(prefix);
}
}
//Using ridiculous property names for space reasons
return {
f: prefix ? prefix + '!' + name : name, //fullName
n: name,
pr: prefix,
p: plugin
};
};
function makeConfig(name) {
return function () {
return (config && config.config && config.config[name]) || {};
};
}
handlers = {
require: function (name) {
return makeRequire(name);
},
exports: function (name) {
var e = defined[name];
if (typeof e !== 'undefined') {
return e;
} else {
return (defined[name] = {});
}
},
module: function (name) {
return {
id: name,
uri: '',
exports: defined[name],
config: makeConfig(name)
};
}
};
main = function (name, deps, callback, relName) {
var cjsModule, depName, ret, map, i, relParts,
args = [],
callbackType = typeof callback,
usingExports;
//Use name if no relName
relName = relName || name;
relParts = makeRelParts(relName);
//Call the callback to define the module, if necessary.
if (callbackType === 'undefined' || callbackType === 'function') {
//Pull out the defined dependencies and pass the ordered
//values to the callback.
//Default to [require, exports, module] if no deps
deps = !deps.length && callback.length ? ['require', 'exports', 'module'] : deps;
for (i = 0; i < deps.length; i += 1) {
map = makeMap(deps[i], relParts);
depName = map.f;
//Fast path CommonJS standard dependencies.
if (depName === "require") {
args[i] = handlers.require(name);
} else if (depName === "exports") {
//CommonJS module spec 1.1
args[i] = handlers.exports(name);
usingExports = true;
} else if (depName === "module") {
//CommonJS module spec 1.1
cjsModule = args[i] = handlers.module(name);
} else if (hasProp(defined, depName) ||
hasProp(waiting, depName) ||
hasProp(defining, depName)) {
args[i] = callDep(depName);
} else if (map.p) {
map.p.load(map.n, makeRequire(relName, true), makeLoad(depName), {});
args[i] = defined[depName];
} else {
throw new Error(name + ' missing ' + depName);
}
}
ret = callback ? callback.apply(defined[name], args) : undefined;
if (name) {
//If setting exports via "module" is in play,
//favor that over return value and exports. After that,
//favor a non-undefined return value over exports use.
if (cjsModule && cjsModule.exports !== undef &&
cjsModule.exports !== defined[name]) {
defined[name] = cjsModule.exports;
} else if (ret !== undef || !usingExports) {
//Use the return value from the function.
defined[name] = ret;
}
}
} else if (name) {
//May just be an object definition for the module. Only
//worry about defining if have a module name.
defined[name] = callback;
}
};
requirejs = require = req = function (deps, callback, relName, forceSync, alt) {
if (typeof deps === "string") {
if (handlers[deps]) {
//callback in this case is really relName
return handlers[deps](callback);
}
//Just return the module wanted. In this scenario, the
//deps arg is the module name, and second arg (if passed)
//is just the relName.
//Normalize module name, if it contains . or ..
return callDep(makeMap(deps, makeRelParts(callback)).f);
} else if (!deps.splice) {
//deps is a config object, not an array.
config = deps;
if (config.deps) {
req(config.deps, config.callback);
}
if (!callback) {
return;
}
if (callback.splice) {
//callback is an array, which means it is a dependency list.
//Adjust args if there are dependencies
deps = callback;
callback = relName;
relName = null;
} else {
deps = undef;
}
}
//Support require(['a'])
callback = callback || function () { };
//If relName is a function, it is an errback handler,
//so remove it.
if (typeof relName === 'function') {
relName = forceSync;
forceSync = alt;
}
//Simulate async callback;
if (forceSync) {
main(undef, deps, callback, relName);
} else {
//Using a non-zero value because of concern for what old browsers
//do, and latest browsers "upgrade" to 4 if lower value is used:
//http://www.whatwg.org/specs/web-apps/current-work/multipage/timers.html#dom-windowtimers-settimeout:
//If want a value immediately, use require('id') instead -- something
//that works in almond on the global level, but not guaranteed and
//unlikely to work in other AMD implementations.
setTimeout(function () {
main(undef, deps, callback, relName);
}, 4);
}
return req;
};
/**
* Just drops the config on the floor, but returns req in case
* the config return value is used.
*/
req.config = function (cfg) {
return req(cfg);
};
/**
* Expose module registry for debugging and tooling
*/
requirejs._defined = defined;
define = function (name, deps, callback) {
if (typeof name !== 'string') {
throw new Error('See almond README: incorrect module build, no module name');
}
//This module may not have dependencies
if (!deps.splice) {
//deps is not an array, so probably means
//an object literal or factory function for
//the value. Adjust args.
callback = deps;
deps = [];
}
if (!hasProp(defined, name) && !hasProp(waiting, name)) {
waiting[name] = [name, deps, callback];
}
};
define.amd = {
jQuery: true
};
}());
/**
*
* @namespace Cesium
*/
//----CesiumVectorTile----
(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define('ThirdParty/turf',[],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.turf = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
var featureEach = require('@turf/meta').featureEach;
var geomEach = require('@turf/meta').geomEach;
var getCoords = require('@turf/invariant').getCoords;
var helpers = require('@turf/helpers');
var point = helpers.point;
var lineString = helpers.lineString;
var polygon = helpers.polygon;
var featureCollection = helpers.featureCollection;
module.exports = {
lineIntersect: require('@turf/line-intersect'),
bboxClip: require('@turf/bbox-clip'),
polygonToLineString: require('@turf/polygon-to-linestring'),
simplify:require('@turf/simplify'),
featureEach: featureEach,
featureCollection:featureCollection,
polygon:polygon,
point:point,
lineString:lineString,
geomEach:geomEach,
getCoords:getCoords,
helpers:helpers,
bbox:require('@turf/bbox'),
within:require('@turf/within'),
center: require('@turf/center'),
centerOfMass: require('@turf/center-of-mass'),
centroid: require('@turf/centroid'),
lineOffset: require('@turf/line-offset'),
buffer: require('@turf/buffer'),
difference: require('@turf/difference'),
mask: require('@turf/mask')
};
},{"@turf/bbox":6,"@turf/bbox-clip":3,"@turf/buffer":7,"@turf/center":9,"@turf/center-of-mass":8,"@turf/centroid":10,"@turf/difference":12,"@turf/helpers":14,"@turf/invariant":16,"@turf/line-intersect":17,"@turf/line-offset":21,"@turf/mask":27,"@turf/meta":28,"@turf/polygon-to-linestring":29,"@turf/simplify":32,"@turf/within":34}],2:[function(require,module,exports){
module.exports = normalize;
var types = {
Point: 'geometry',
MultiPoint: 'geometry',
LineString: 'geometry',
MultiLineString: 'geometry',
Polygon: 'geometry',
MultiPolygon: 'geometry',
GeometryCollection: 'geometry',
Feature: 'feature',
FeatureCollection: 'featurecollection'
};
/**
* Normalize a GeoJSON feature into a FeatureCollection.
*
* @param {object} gj geojson data
* @returns {object} normalized geojson data
*/
function normalize(gj) {
if (!gj || !gj.type) return null;
var type = types[gj.type];
if (!type) return null;
if (type === 'geometry') {
return {
type: 'FeatureCollection',
features: [{
type: 'Feature',
properties: {},
geometry: gj
}]
};
} else if (type === 'feature') {
return {
type: 'FeatureCollection',
features: [gj]
};
} else if (type === 'featurecollection') {
return gj;
}
}
},{}],3:[function(require,module,exports){
var helpers = require('@turf/helpers');
var lineclip = require('lineclip');
var getCoords = require('@turf/invariant').getCoords;
var lineString = helpers.lineString;
var multiLineString = helpers.multiLineString;
var polygon = helpers.polygon;
var multiPolygon = helpers.multiPolygon;
/**
* Takes a {@link Feature} and a bbox and clips the feature to the bbox using [lineclip](https://github.com/mapbox/lineclip).
* May result in degenerate edges when clipping Polygons.
*
* @name bbox-clip
* @param {Feature<LineString|MultiLineString|Polygon|MultiPolygon>} feature feature to clip to the bbox
* @param {Array<number>} bbox extent in [minX, minY, maxX, maxY] order
* @returns {Feature<LineString|MultiLineString|Polygon|MultiPolygon>} clipped Feature
* @example
* var bbox = [0, 0, 10, 10];
* var poly = {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Polygon",
* "coordinates": [[[2, 2], [8, 4], [12, 8], [3, 7], [2, 2]]]
* }
* }
*
* var clipped = turf.bboxClip(poly, bbox);
*
* //=clipped
*/
module.exports = function (feature, bbox) {
var geom = getGeom(feature);
var coords = getCoords(feature);
var properties = feature.properties;
switch (geom) {
case 'LineString':
case 'MultiLineString':
var lines = [];
if (geom === 'LineString') coords = [coords];
coords.forEach(function (line) {
lineclip(line, bbox, lines);
});
if (lines.length === 1) return lineString(lines[0], properties);
return multiLineString(lines, properties);
case 'Polygon':
return polygon(clipPolygon(coords, bbox), properties);
case 'MultiPolygon':
return multiPolygon(coords.map(function (polygon) {
return clipPolygon(polygon, bbox);
}), properties);
default:
throw new Error('geometry ' + geom + ' not supported');
}
};
function clipPolygon(rings, bbox) {
var outRings = [];
for (var i = 0; i < rings.length; i++) {
var clipped = lineclip.polygon(rings[i], bbox);
if (clipped.length > 0) {
if (clipped[0][0] !== clipped[clipped.length - 1][0] || clipped[0][1] !== clipped[clipped.length - 1][1]) {
clipped.push(clipped[0]);
}
outRings.push(clipped);
}
}
return outRings;
}
function getGeom(feature) {
return (feature.geometry) ? feature.geometry.type : feature.type;
}
},{"@turf/helpers":4,"@turf/invariant":5,"lineclip":44}],4:[function(require,module,exports){
/**
* Wraps a GeoJSON {@link Geometry} in a GeoJSON {@link Feature}.
*
* @name feature
* @param {Geometry} geometry input geometry
* @param {Object} properties properties
* @returns {FeatureCollection} a FeatureCollection of input features
* @example
* var geometry = {
* "type": "Point",
* "coordinates": [
* 67.5,
* 32.84267363195431
* ]
* }
*
* var feature = turf.feature(geometry);
*
* //=feature
*/
function feature(geometry, properties) {
if (!geometry) throw new Error('No geometry passed');
return {
type: 'Feature',
properties: properties || {},
geometry: geometry
};
}
/**
* Takes coordinates and properties (optional) and returns a new {@link Point} feature.
*
* @name point
* @param {Array<number>} coordinates longitude, latitude position (each in decimal degrees)
* @param {Object=} properties an Object that is used as the {@link Feature}'s
* properties
* @returns {Feature<Point>} a Point feature
* @example
* var pt1 = turf.point([-75.343, 39.984]);
*
* //=pt1
*/
function point(coordinates, properties) {
if (!coordinates) throw new Error('No coordinates passed');
if (coordinates.length === undefined) throw new Error('Coordinates must be an array');
if (coordinates.length < 2) throw new Error('Coordinates must be at least 2 numbers long');
if (typeof coordinates[0] !== 'number' || typeof coordinates[1] !== 'number') throw new Error('Coordinates must numbers');
return feature({
type: 'Point',
coordinates: coordinates
}, properties);
}
/**
* Takes an array of LinearRings and optionally an {@link Object} with properties and returns a {@link Polygon} feature.
*
* @name polygon
* @param {Array<Array<Array<number>>>} coordinates an array of LinearRings
* @param {Object=} properties a properties object
* @returns {Feature<Polygon>} a Polygon feature
* @throws {Error} throw an error if a LinearRing of the polygon has too few positions
* or if a LinearRing of the Polygon does not have matching Positions at the
* beginning & end.
* @example
* var polygon = turf.polygon([[
* [-2.275543, 53.464547],
* [-2.275543, 53.489271],
* [-2.215118, 53.489271],
* [-2.215118, 53.464547],
* [-2.275543, 53.464547]
* ]], { name: 'poly1', population: 400});
*
* //=polygon
*/
function polygon(coordinates, properties) {
if (!coordinates) throw new Error('No coordinates passed');
for (var i = 0; i < coordinates.length; i++) {
var ring = coordinates[i];
if (ring.length < 4) {
throw new Error('Each LinearRing of a Polygon must have 4 or more Positions.');
}
for (var j = 0; j < ring[ring.length - 1].length; j++) {
if (ring[ring.length - 1][j] !== ring[0][j]) {
throw new Error('First and last Position are not equivalent.');
}
}
}
return feature({
type: 'Polygon',
coordinates: coordinates
}, properties);
}
/**
* Creates a {@link LineString} based on a
* coordinate array. Properties can be added optionally.
*
* @name lineString
* @param {Array<Array<number>>} coordinates an array of Positions
* @param {Object=} properties an Object of key-value pairs to add as properties
* @returns {Feature<LineString>} a LineString feature
* @throws {Error} if no coordinates are passed
* @example
* var linestring1 = turf.lineString([
* [-21.964416, 64.148203],
* [-21.956176, 64.141316],
* [-21.93901, 64.135924],
* [-21.927337, 64.136673]
* ]);
* var linestring2 = turf.lineString([
* [-21.929054, 64.127985],
* [-21.912918, 64.134726],
* [-21.916007, 64.141016],
* [-21.930084, 64.14446]
* ], {name: 'line 1', distance: 145});
*
* //=linestring1
*
* //=linestring2
*/
function lineString(coordinates, properties) {
if (!coordinates) throw new Error('No coordinates passed');
return feature({
type: 'LineString',
coordinates: coordinates
}, properties);
}
/**
* Takes one or more {@link Feature|Features} and creates a {@link FeatureCollection}.
*
* @name featureCollection
* @param {Feature[]} features input features
* @returns {FeatureCollection} a FeatureCollection of input features
* @example
* var features = [
* turf.point([-75.343, 39.984], {name: 'Location A'}),
* turf.point([-75.833, 39.284], {name: 'Location B'}),
* turf.point([-75.534, 39.123], {name: 'Location C'})
* ];
*
* var fc = turf.featureCollection(features);
*
* //=fc
*/
function featureCollection(features) {
if (!features) throw new Error('No features passed');
return {
type: 'FeatureCollection',
features: features
};
}
/**
* Creates a {@link Feature<MultiLineString>} based on a
* coordinate array. Properties can be added optionally.
*
* @name multiLineString
* @param {Array<Array<Array<number>>>} coordinates an array of LineStrings
* @param {Object=} properties an Object of key-value pairs to add as properties
* @returns {Feature<MultiLineString>} a MultiLineString feature
* @throws {Error} if no coordinates are passed
* @example
* var multiLine = turf.multiLineString([[[0,0],[10,10]]]);
*
* //=multiLine
*
*/
function multiLineString(coordinates, properties) {
if (!coordinates) throw new Error('No coordinates passed');
return feature({
type: 'MultiLineString',
coordinates: coordinates
}, properties);
}
/**
* Creates a {@link Feature<MultiPoint>} based on a
* coordinate array. Properties can be added optionally.
*
* @name multiPoint
* @param {Array<Array<number>>} coordinates an array of Positions
* @param {Object=} properties an Object of key-value pairs to add as properties
* @returns {Feature<MultiPoint>} a MultiPoint feature
* @throws {Error} if no coordinates are passed
* @example
* var multiPt = turf.multiPoint([[0,0],[10,10]]);
*
* //=multiPt
*
*/
function multiPoint(coordinates, properties) {
if (!coordinates) throw new Error('No coordinates passed');
return feature({
type: 'MultiPoint',
coordinates: coordinates
}, properties);
}
/**
* Creates a {@link Feature<MultiPolygon>} based on a
* coordinate array. Properties can be added optionally.
*
* @name multiPolygon
* @param {Array<Array<Array<Array<number>>>>} coordinates an array of Polygons
* @param {Object=} properties an Object of key-value pairs to add as properties
* @returns {Feature<MultiPolygon>} a multipolygon feature
* @throws {Error} if no coordinates are passed
* @example
* var multiPoly = turf.multiPolygon([[[[0,0],[0,10],[10,10],[10,0],[0,0]]]]);
*
* //=multiPoly
*
*/
function multiPolygon(coordinates, properties) {
if (!coordinates) throw new Error('No coordinates passed');
return feature({
type: 'MultiPolygon',
coordinates: coordinates
}, properties);
}
/**
* Creates a {@link Feature<GeometryCollection>} based on a
* coordinate array. Properties can be added optionally.
*
* @name geometryCollection
* @param {Array<{Geometry}>} geometries an array of GeoJSON Geometries
* @param {Object=} properties an Object of key-value pairs to add as properties
* @returns {Feature<GeometryCollection>} a GeoJSON GeometryCollection Feature
* @example
* var pt = {
* "type": "Point",
* "coordinates": [100, 0]
* };
* var line = {
* "type": "LineString",
* "coordinates": [ [101, 0], [102, 1] ]
* };
* var collection = turf.geometryCollection([pt, line]);
*
* //=collection
*/
function geometryCollection(geometries, properties) {
if (!geometries) throw new Error('No geometries passed');
return feature({
type: 'GeometryCollection',
geometries: geometries
}, properties);
}
var factors = {
miles: 3960,
nauticalmiles: 3441.145,
degrees: 57.2957795,
radians: 1,
inches: 250905600,
yards: 6969600,
meters: 6373000,
metres: 6373000,
kilometers: 6373,
kilometres: 6373,
feet: 20908792.65
};
/**
* Convert a distance measurement from radians to a more friendly unit.
*
* @name radiansToDistance
* @param {number} radians in radians across the sphere
* @param {string} [units=kilometers] can be degrees, radians, miles, or kilometers inches, yards, metres, meters, kilometres, kilometers.
* @returns {number} distance
*/
function radiansToDistance(radians, units) {
var factor = factors[units || 'kilometers'];
if (factor === undefined) throw new Error('Invalid unit');
return radians * factor;
}
/**
* Convert a distance measurement from a real-world unit into radians
*
* @name distanceToRadians
* @param {number} distance in real units
* @param {string} [units=kilometers] can be degrees, radians, miles, or kilometers inches, yards, metres, meters, kilometres, kilometers.
* @returns {number} radians
*/
function distanceToRadians(distance, units) {
var factor = factors[units || 'kilometers'];
if (factor === undefined) throw new Error('Invalid unit');
return distance / factor;
}
/**
* Convert a distance measurement from a real-world unit into degrees
*
* @name distanceToDegrees
* @param {number} distance in real units
* @param {string} [units=kilometers] can be degrees, radians, miles, or kilometers inches, yards, metres, meters, kilometres, kilometers.
* @returns {number} degrees
*/
function distanceToDegrees(distance, units) {
var factor = factors[units || 'kilometers'];
if (factor === undefined) throw new Error('Invalid unit');
return (distance / factor) * 57.2958;
}
module.exports = {
feature: feature,
featureCollection: featureCollection,
geometryCollection: geometryCollection,
point: point,
multiPoint: multiPoint,
lineString: lineString,
multiLineString: multiLineString,
polygon: polygon,
multiPolygon: multiPolygon,
radiansToDistance: radiansToDistance,
distanceToRadians: distanceToRadians,
distanceToDegrees: distanceToDegrees
};
},{}],5:[function(require,module,exports){
/**
* Unwrap a coordinate from a Point Feature, Geometry or a single coordinate.
*
* @name getCoord
* @param {Array<any>|Geometry|Feature<Point>} obj any value
* @returns {Array<number>} coordinates
*/
function getCoord(obj) {
if (!obj) throw new Error('No obj passed');
var coordinates = getCoords(obj);
// getCoord() must contain at least two numbers (Point)
if (coordinates.length > 1 &&
typeof coordinates[0] === 'number' &&
typeof coordinates[1] === 'number') {
return coordinates;
} else {
throw new Error('Coordinate is not a valid Point');
}
}
/**
* Unwrap coordinates from a Feature, Geometry Object or an Array of numbers
*
* @name getCoords
* @param {Array<any>|Geometry|Feature<any>} obj any value
* @returns {Array<any>} coordinates
*/
function getCoords(obj) {
if (!obj) throw new Error('No obj passed');
var coordinates;
// Array of numbers
if (obj.length) {
coordinates = obj;
// Geometry Object
} else if (obj.coordinates) {
coordinates = obj.coordinates;
// Feature
} else if (obj.geometry && obj.geometry.coordinates) {
coordinates = obj.geometry.coordinates;
}
// Checks if coordinates contains a number
if (coordinates) {
containsNumber(coordinates);
return coordinates;
}
throw new Error('No valid coordinates');
}
/**
* Checks if coordinates contains a number
*
* @name containsNumber
* @param {Array<any>} coordinates GeoJSON Coordinates
* @returns {boolean} true if Array contains a number
*/
function containsNumber(coordinates) {
if (coordinates.length > 1 &&
typeof coordinates[0] === 'number' &&
typeof coordinates[1] === 'number') {
return true;
}
if (Array.isArray(coordinates[0]) && coordinates[0].length) {
return containsNumber(coordinates[0]);
}
throw new Error('coordinates must only contain numbers');
}
/**
* Enforce expectations about types of GeoJSON objects for Turf.
*
* @name geojsonType
* @param {GeoJSON} value any GeoJSON object
* @param {string} type expected GeoJSON type
* @param {string} name name of calling function
* @throws {Error} if value is not the expected type.
*/
function geojsonType(value, type, name) {
if (!type || !name) throw new Error('type and name required');
if (!value || value.type !== type) {
throw new Error('Invalid input to ' + name + ': must be a ' + type + ', given ' + value.type);
}
}
/**
* Enforce expectations about types of {@link Feature} inputs for Turf.
* Internally this uses {@link geojsonType} to judge geometry types.
*
* @name featureOf
* @param {Feature} feature a feature with an expected geometry type
* @param {string} type expected GeoJSON type
* @param {string} name name of calling function
* @throws {Error} error if value is not the expected type.
*/
function featureOf(feature, type, name) {
if (!feature) throw new Error('No feature passed');
if (!name) throw new Error('.featureOf() requires a name');
if (!feature || feature.type !== 'Feature' || !feature.geometry) {
throw new Error('Invalid input to ' + name + ', Feature with geometry required');
}
if (!feature.geometry || feature.geometry.type !== type) {
throw new Error('Invalid input to ' + name + ': must be a ' + type + ', given ' + feature.geometry.type);
}
}
/**
* Enforce expectations about types of {@link FeatureCollection} inputs for Turf.
* Internally this uses {@link geojsonType} to judge geometry types.
*
* @name collectionOf
* @param {FeatureCollection} featureCollection a FeatureCollection for which features will be judged
* @param {string} type expected GeoJSON type
* @param {string} name name of calling function
* @throws {Error} if value is not the expected type.
*/
function collectionOf(featureCollection, type, name) {
if (!featureCollection) throw new Error('No featureCollection passed');
if (!name) throw new Error('.collectionOf() requires a name');
if (!featureCollection || featureCollection.type !== 'FeatureCollection') {
throw new Error('Invalid input to ' + name + ', FeatureCollection required');
}
for (var i = 0; i < featureCollection.features.length; i++) {
var feature = featureCollection.features[i];
if (!feature || feature.type !== 'Feature' || !feature.geometry) {
throw new Error('Invalid input to ' + name + ', Feature with geometry required');
}
if (!feature.geometry || feature.geometry.type !== type) {
throw new Error('Invalid input to ' + name + ': must be a ' + type + ', given ' + feature.geometry.type);
}
}
}
module.exports = {
geojsonType: geojsonType,
collectionOf: collectionOf,
featureOf: featureOf,
getCoord: getCoord,
getCoords: getCoords,
containsNumber: containsNumber
};
},{}],6:[function(require,module,exports){
var each = require('@turf/meta').coordEach;
/**
* Takes a set of features, calculates the bbox of all input features, and returns a bounding box.
*
* @name bbox
* @param {(Feature|FeatureCollection)} geojson input features
* @return {Array<number>} bbox extent in [minX, minY, maxX, maxY] order
* @example
* var pt1 = turf.point([114.175329, 22.2524])
* var pt2 = turf.point([114.170007, 22.267969])
* var pt3 = turf.point([114.200649, 22.274641])
* var pt4 = turf.point([114.200649, 22.274641])
* var pt5 = turf.point([114.186744, 22.265745])
* var features = turf.featureCollection([pt1, pt2, pt3, pt4, pt5])
*
* var bbox = turf.bbox(features);
*
* var bboxPolygon = turf.bboxPolygon(bbox);
*
* //=bbox
*
* //=bboxPolygon
*/
module.exports = function (geojson) {
var bbox = [Infinity, Infinity, -Infinity, -Infinity];
each(geojson, function (coord) {
if (bbox[0] > coord[0]) bbox[0] = coord[0];
if (bbox[1] > coord[1]) bbox[1] = coord[1];
if (bbox[2] < coord[0]) bbox[2] = coord[0];
if (bbox[3] < coord[1]) bbox[3] = coord[1];
});
return bbox;
};
},{"@turf/meta":28}],7:[function(require,module,exports){
// http://stackoverflow.com/questions/839899/how-do-i-calculate-a-point-on-a-circles-circumference
// radians = degrees * (pi/180)
// https://github.com/bjornharrtell/jsts/blob/master/examples/buffer.html
var helpers = require('@turf/helpers');
var featureCollection = helpers.featureCollection;
var jsts = require('jsts');
var normalize = require('@mapbox/geojson-normalize');
/**
* Calculates a buffer for input features for a given radius. Units supported are miles, kilometers, and degrees.
*
* @name buffer
* @param {(Feature|FeatureCollection)} feature input to be buffered
* @param {number} radius distance to draw the buffer
* @param {string} units any of the options supported by turf units
* @return {FeatureCollection<Polygon>|FeatureCollection<MultiPolygon>|Polygon|MultiPolygon} buffered features
*
* @example
* var pt = {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [-90.548630, 14.616599]
* }
* };
* var unit = 'miles';
*
* var buffered = turf.buffer(pt, 500, unit);
* var result = turf.featureCollection([buffered, pt]);
*
* //=result
*/
module.exports = function (feature, radius, units) {
var degrees = helpers.lengthToDegrees(radius, units);
var fc = normalize(feature);
var buffered = normalize(featureCollection(fc.features.map(function (f) {
return bufferOp(f, degrees);
})));
if (buffered.features.length > 1) return buffered;
else if (buffered.features.length === 1) return buffered.features[0];
};
function bufferOp(feature, radius) {
var reader = new jsts.io.GeoJSONReader();
var geom = reader.read(feature.geometry);
var buffered = geom.buffer(radius);
var writer = new jsts.io.GeoJSONWriter();
buffered = writer.write(buffered);
return {
type: 'Feature',
geometry: buffered,
properties: {}
};
}
},{"@mapbox/geojson-normalize":2,"@turf/helpers":14,"jsts":43}],8:[function(require,module,exports){
var each = require('@turf/meta').coordEach,
centroid = require('@turf/centroid'),
convex = require('@turf/convex'),
explode = require('@turf/explode'),
point = require('@turf/helpers').point;
/**
* Takes a [feature](http://geojson.org/geojson-spec.html#feature-objects)
* or a [featureCollection](http://geojson.org/geojson-spec.html#feature-collection-objects)
* and returns its [center of mass](https://en.wikipedia.org/wiki/Center_of_mass)
* using this formula: [Centroid of Polygon](https://en.wikipedia.org/wiki/Centroid#Centroid_of_polygon).
*
* @param {FeatureCollection|Feature} fc - the feature collection or feature
* @returns {Feature<Point>} the center of mass
* @example
* var feature = {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Polygon",
* "coordinates": [
* [
* [
* 4.854240417480469,
* 45.77258200374433
* ],
* [
* 4.8445844650268555,
* 45.777431068484894
* ],
* [
* 4.845442771911621,
* 45.778658234059755
* ],
* [
* 4.845914840698242,
* 45.779376562352425
* ],
* [
* 4.846644401550292,
* 45.78021460033108
* ],
* [
* 4.847245216369629,
* 45.78078326178593
* ],
* [
* 4.848060607910156,
* 45.78138184652523
* ],
* [
* 4.8487043380737305,
* 45.78186070968964
* ],
* [
* 4.849562644958495,
* 45.78248921135124
* ],
* [
* 4.850893020629883,
* 45.78302792142197
* ],
* [
* 4.852008819580077,
* 45.78374619341895
* ],
* [
* 4.852995872497559,
* 45.784075398324866
* ],
* [
* 4.853854179382324,
* 45.78443452873236
* ],
* [
* 4.8549699783325195,
* 45.78470387501975
* ],
* [
* 4.85569953918457,
* 45.784793656826345
* ],
* [
* 4.857330322265624,
* 45.784853511283764
* ],
* [
* 4.858231544494629,
* 45.78494329284938
* ],
* [
* 4.859304428100585,
* 45.784883438488365
* ],
* [
* 4.858360290527344,
* 45.77294120818474
* ],
* [
* 4.854240417480469,
* 45.77258200374433
* ]
* ]
* ]
* }
* };
*
* var centerOfMass = turf.centerOfMass(feature);
*
* //=centerOfMass
*/
function centerOfMass(fc) {
if (fc.type === 'Feature' && fc.geometry.type === 'Polygon') {
var coords = [];
each(fc, function (coord) {
coords.push(coord);
});
// First, we neutralize the feature (set it around coordinates [0,0]) to prevent rounding errors
// We take any point to translate all the points around 0
var centre = centroid(fc);
var translation = centre.geometry.coordinates;
var sx = 0;
var sy = 0;
var sArea = 0;
var i, pi, pj, xi, xj, yi, yj, a;
var neutralizedPoints = coords.map(function (point) {
return [
point[0] - translation[0],
point[1] - translation[1]
];
});
for (i = 0; i < coords.length - 1; i++) {
// pi is the current point
pi = neutralizedPoints[i];
xi = pi[0];
yi = pi[1];
// pj is the next point (pi+1)
pj = neutralizedPoints[i + 1];
xj = pj[0];
yj = pj[1];
// a is the common factor to compute the signed area and the final coordinates
a = xi * yj - xj * yi;
// sArea is the sum used to compute the signed area
sArea += a;
// sx and sy are the sums used to compute the final coordinates
sx += (xi + xj) * a;
sy += (yi + yj) * a;
}
// Shape has no area: fallback on turf.centroid
if (sArea === 0) {
return centre;
} else {
// Compute the signed area, and factorize 1/6A
var area = sArea * 0.5;
var areaFactor = 1 / (6 * area);
// Compute the final coordinates, adding back the values that have been neutralized
return point([
translation[0] + areaFactor * sx,
translation[1] + areaFactor * sy
]);
}
} else {
// Not a polygon: Compute the convex hull and work with that
var hull = convex(explode(fc));
if (hull) {
return module.exports(hull);
} else {
// Hull is empty: fallback on the centroid
return centroid(fc);
}
}
}
module.exports = centerOfMass;
},{"@turf/centroid":10,"@turf/convex":11,"@turf/explode":13,"@turf/helpers":14,"@turf/meta":28}],9:[function(require,module,exports){
var bbox = require('@turf/bbox'),
point = require('@turf/helpers').point;
/**
* Takes a {@link Feature} or {@link FeatureCollection} and returns the absolute center point of all features.
*
* @name center
* @param {(Feature|FeatureCollection)} layer input features
* @return {Feature<Point>} a Point feature at the absolute center point of all input features
* @example
* var features = {
* "type": "FeatureCollection",
* "features": [
* {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [-97.522259, 35.4691]
* }
* }, {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [-97.502754, 35.463455]
* }
* }, {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [-97.508269, 35.463245]
* }
* }, {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [-97.516809, 35.465779]
* }
* }, {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [-97.515372, 35.467072]
* }
* }, {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [-97.509363, 35.463053]
* }
* }, {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [-97.511123, 35.466601]
* }
* }, {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [-97.518547, 35.469327]
* }
* }, {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [-97.519706, 35.469659]
* }
* }, {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [-97.517839, 35.466998]
* }
* }, {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [-97.508678, 35.464942]
* }
* }, {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [-97.514914, 35.463453]
* }
* }
* ]
* };
*
* var centerPt = turf.center(features);
* centerPt.properties['marker-size'] = 'large';
* centerPt.properties['marker-color'] = '#000';
*
* var resultFeatures = features.features.concat(centerPt);
* var result = {
* "type": "FeatureCollection",
* "features": resultFeatures
* };
*
* //=result
*/
module.exports = function (layer) {
var ext = bbox(layer);
var x = (ext[0] + ext[2]) / 2;
var y = (ext[1] + ext[3]) / 2;
return point([x, y]);
};
},{"@turf/bbox":6,"@turf/helpers":14}],10:[function(require,module,exports){
var each = require('@turf/meta').coordEach;
var point = require('@turf/helpers').point;
/**
* Takes one or more features and calculates the centroid using
* the mean of all vertices.
* This lessens the effect of small islands and artifacts when calculating
* the centroid of a set of polygons.
*
* @name centroid
* @param {(Feature|FeatureCollection)} features input features
* @return {Feature<Point>} the centroid of the input features
* @example
* var poly = {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Polygon",
* "coordinates": [[
* [105.818939,21.004714],
* [105.818939,21.061754],
* [105.890007,21.061754],
* [105.890007,21.004714],
* [105.818939,21.004714]
* ]]
* }
* };
*
* var centroidPt = turf.centroid(poly);
*
* var result = {
* "type": "FeatureCollection",
* "features": [poly, centroidPt]
* };
*
* //=result
*/
module.exports = function (features) {
var xSum = 0, ySum = 0, len = 0;
each(features, function (coord) {
xSum += coord[0];
ySum += coord[1];
len++;
}, true);
return point([xSum / len, ySum / len]);
};
},{"@turf/helpers":14,"@turf/meta":28}],11:[function(require,module,exports){
var each = require('@turf/meta').coordEach,
convexHull = require('convex-hull'),
polygon = require('@turf/helpers').polygon;
/**
* Takes a {@link Feature} or a {@link FeatureCollection} and returns a convex hull {@link Polygon}.
*
* Internally this uses
* the [convex-hull](https://github.com/mikolalysenko/convex-hull) module that
* implements a [monotone chain hull](http://en.wikibooks.org/wiki/Algorithm_Implementation/Geometry/Convex_hull/Monotone_chain).
*
* @name convex
* @param {Feature|FeatureCollection} feature input Feature or FeatureCollection
* @returns {Feature<Polygon>} a convex hull
* @example
* var points = {
* "type": "FeatureCollection",
* "features": [
* {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [10.195312, 43.755225]
* }
* }, {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [10.404052, 43.8424511]
* }
* }, {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [10.579833, 43.659924]
* }
* }, {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [10.360107, 43.516688]
* }
* }, {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [10.14038, 43.588348]
* }
* }, {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [10.195312, 43.755225]
* }
* }
* ]
* };
*
* var hull = turf.convex(points);
*
* var resultFeatures = points.features.concat(hull);
* var result = {
* "type": "FeatureCollection",
* "features": resultFeatures
* };
*
* //=result
*/
module.exports = function (feature) {
var points = [];
// Remove Z in coordinates because it breaks the convexHull algorithm
each(feature, function (coord) {
points.push([coord[0], coord[1]]);
});
var hull = convexHull(points);
// Hull should have at least 3 different vertices in order to create a valid polygon
if (hull.length >= 3) {
var ring = [];
for (var i = 0; i < hull.length; i++) {
ring.push(points[hull[i][0]]);
}
ring.push(points[hull[hull.length - 1][1]]);
return polygon([ring]);
}
return undefined;
};
},{"@turf/helpers":14,"@turf/meta":28,"convex-hull":37}],12:[function(require,module,exports){
// depend on jsts for now https://github.com/bjornharrtell/jsts/blob/master/examples/overlay.html
var jsts = require('jsts');
/**
* Finds the difference between two {@link Polygon|polygons} by clipping the second
* polygon from the first.
*
* @name difference
* @param {Feature<Polygon>} p1 input Polygon feature
* @param {Feature<Polygon>} p2 Polygon feature to difference from `p1`
* @return {Feature<(Polygon|MultiPolygon)>} a Polygon or MultiPolygon feature showing the area of `p1` excluding the area of `p2`
* @example
* var poly1 = {
* "type": "Feature",
* "properties": {
* "fill": "#0f0"
* },
* "geometry": {
* "type": "Polygon",
* "coordinates": [[
* [-46.738586, -23.596711],
* [-46.738586, -23.458207],
* [-46.560058, -23.458207],
* [-46.560058, -23.596711],
* [-46.738586, -23.596711]
* ]]
* }
* };
* var poly2 = {
* "type": "Feature",
* "properties": {
* "fill": "#00f"
* },
* "geometry": {
* "type": "Polygon",
* "coordinates": [[
* [-46.650009, -23.631314],
* [-46.650009, -23.5237],
* [-46.509246, -23.5237],
* [-46.509246, -23.631314],
* [-46.650009, -23.631314]
* ]]
* }
* };
*
* var differenced = turf.difference(poly1, poly2);
* differenced.properties.fill = '#f00';
*
* var polygons = {
* "type": "FeatureCollection",
* "features": [poly1, poly2]
* };
*
* //=polygons
*
* //=differenced
*/
module.exports = function (p1, p2) {
var poly1 = JSON.parse(JSON.stringify(p1));
var poly2 = JSON.parse(JSON.stringify(p2));
if (poly1.type !== 'Feature') {
poly1 = {
type: 'Feature',
properties: {},
geometry: poly1
};
}
if (poly2.type !== 'Feature') {
poly2 = {
type: 'Feature',
properties: {},
geometry: poly2
};
}
var reader = new jsts.io.GeoJSONReader();
var a = reader.read(JSON.stringify(poly1.geometry));
var b = reader.read(JSON.stringify(poly2.geometry));
var differenced = a.difference(b);
if (differenced.isEmpty()) return undefined;
var writer = new jsts.io.GeoJSONWriter();
var geojsonGeometry = writer.write(differenced);
poly1.geometry = differenced;
return {
type: 'Feature',
properties: poly1.properties,
geometry: geojsonGeometry
};
};
},{"jsts":43}],13:[function(require,module,exports){
var featureCollection = require('@turf/helpers').featureCollection;
var featureEach = require('@turf/meta').featureEach;
var coordEach = require('@turf/meta').coordEach;
var point = require('@turf/helpers').point;
/**
* Takes a feature or set of features and returns all positions as
* {@link Point|points}.
*
* @name explode
* @param {(Feature|FeatureCollection)} geojson input features
* @return {FeatureCollection<point>} points representing the exploded input features
* @throws {Error} if it encounters an unknown geometry type
* @example
* var poly = {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Polygon",
* "coordinates": [[
* [177.434692, -17.77517],
* [177.402076, -17.779093],
* [177.38079, -17.803937],
* [177.40242, -17.826164],
* [177.438468, -17.824857],
* [177.454948, -17.796746],
* [177.434692, -17.77517]
* ]]
* }
* };
*
* var points = turf.explode(poly);
*
* //=poly
*
* //=points
*/
module.exports = function (geojson) {
var points = [];
if (geojson.type === 'FeatureCollection') {
featureEach(geojson, function (feature) {
coordEach(feature, function (coord) {
points.push(point(coord, feature.properties));
});
});
} else {
coordEach(geojson, function (coord) {
points.push(point(coord, geojson.properties));
});
}
return featureCollection(points);
};
},{"@turf/helpers":14,"@turf/meta":28}],14:[function(require,module,exports){
'use strict';
Object.defineProperty(exports, '__esModule', { value: true });
/**
* Earth Radius used with the Harvesine formula and approximates using a spherical (non-ellipsoid) Earth.
*/
var earthRadius = 6371008.8;
/**
* Unit of measurement factors using a spherical (non-ellipsoid) earth radius.
*/
var factors = {
meters: earthRadius,
metres: earthRadius,
millimeters: earthRadius * 1000,
millimetres: earthRadius * 1000,
centimeters: earthRadius * 100,
centimetres: earthRadius * 100,
kilometers: earthRadius / 1000,
kilometres: earthRadius / 1000,
miles: earthRadius / 1609.344,
nauticalmiles: earthRadius / 1852,
inches: earthRadius * 39.370,
yards: earthRadius / 1.0936,
feet: earthRadius * 3.28084,
radians: 1,
degrees: earthRadius / 111325,
};
/**
* Units of measurement factors based on 1 meter.
*/
var unitsFactors = {
meters: 1,
metres: 1,
millimeters: 1000,
millimetres: 1000,
centimeters: 100,
centimetres: 100,
kilometers: 1 / 1000,
kilometres: 1 / 1000,
miles: 1 / 1609.344,
nauticalmiles: 1 / 1852,
inches: 39.370,
yards: 1 / 1.0936,
feet: 3.28084,
radians: 1 / earthRadius,
degrees: 1 / 111325,
};
/**
* Area of measurement factors based on 1 square meter.
*/
var areaFactors = {
meters: 1,
metres: 1,
millimeters: 1000000,
millimetres: 1000000,
centimeters: 10000,
centimetres: 10000,
kilometers: 0.000001,
kilometres: 0.000001,
acres: 0.000247105,
miles: 3.86e-7,
yards: 1.195990046,
feet: 10.763910417,
inches: 1550.003100006
};
/**
* Wraps a GeoJSON {@link Geometry} in a GeoJSON {@link Feature}.
*
* @name feature
* @param {Geometry} geometry input geometry
* @param {Object} [properties={}] an Object of key-value pairs to add as properties
* @param {Object} [options={}] Optional Parameters
* @param {Array<number>} [options.bbox] Bounding Box Array [west, south, east, north] associated with the Feature
* @param {string|number} [options.id] Identifier associated with the Feature
* @returns {Feature} a GeoJSON Feature
* @example
* var geometry = {
* "type": "Point",
* "coordinates": [110, 50]
* };
*
* var feature = turf.feature(geometry);
*
* //=feature
*/
function feature(geometry, properties, options) {
// Optional Parameters
options = options || {};
if (!isObject(options)) throw new Error('options is invalid');
var bbox = options.bbox;
var id = options.id;
// Validation
if (geometry === undefined) throw new Error('geometry is required');
if (properties && properties.constructor !== Object) throw new Error('properties must be an Object');
if (bbox) validateBBox(bbox);
if (id) validateId(id);
// Main
var feat = {type: 'Feature'};
if (id) feat.id = id;
if (bbox) feat.bbox = bbox;
feat.properties = properties || {};
feat.geometry = geometry;
return feat;
}
/**
* Creates a GeoJSON {@link Geometry} from a Geometry string type & coordinates.
* For GeometryCollection type use `helpers.geometryCollection`
*
* @name geometry
* @param {string} type Geometry Type
* @param {Array<number>} coordinates Coordinates
* @param {Object} [options={}] Optional Parameters
* @param {Array<number>} [options.bbox] Bounding Box Array [west, south, east, north] associated with the Geometry
* @returns {Geometry} a GeoJSON Geometry
* @example
* var type = 'Point';
* var coordinates = [110, 50];
*
* var geometry = turf.geometry(type, coordinates);
*
* //=geometry
*/
function geometry(type, coordinates, options) {
// Optional Parameters
options = options || {};
if (!isObject(options)) throw new Error('options is invalid');
var bbox = options.bbox;
// Validation
if (!type) throw new Error('type is required');
if (!coordinates) throw new Error('coordinates is required');
if (!Array.isArray(coordinates)) throw new Error('coordinates must be an Array');
if (bbox) validateBBox(bbox);
// Main
var geom;
switch (type) {
case 'Point': geom = point(coordinates).geometry; break;
case 'LineString': geom = lineString(coordinates).geometry; break;
case 'Polygon': geom = polygon(coordinates).geometry; break;
case 'MultiPoint': geom = multiPoint(coordinates).geometry; break;
case 'MultiLineString': geom = multiLineString(coordinates).geometry; break;
case 'MultiPolygon': geom = multiPolygon(coordinates).geometry; break;
default: throw new Error(type + ' is invalid');
}
if (bbox) geom.bbox = bbox;
return geom;
}
/**
* Creates a {@link Point} {@link Feature} from a Position.
*
* @name point
* @param {Array<number>} coordinates longitude, latitude position (each in decimal degrees)
* @param {Object} [properties={}] an Object of key-value pairs to add as properties
* @param {Object} [options={}] Optional Parameters
* @param {Array<number>} [options.bbox] Bounding Box Array [west, south, east, north] associated with the Feature
* @param {string|number} [options.id] Identifier associated with the Feature
* @returns {Feature<Point>} a Point feature
* @example
* var point = turf.point([-75.343, 39.984]);
*
* //=point
*/
function point(coordinates, properties, options) {
if (!coordinates) throw new Error('coordinates is required');
if (!Array.isArray(coordinates)) throw new Error('coordinates must be an Array');
if (coordinates.length < 2) throw new Error('coordinates must be at least 2 numbers long');
if (!isNumber(coordinates[0]) || !isNumber(coordinates[1])) throw new Error('coordinates must contain numbers');
return feature({
type: 'Point',
coordinates: coordinates
}, properties, options);
}
/**
* Creates a {@link Point} {@link FeatureCollection} from an Array of Point coordinates.
*
* @name points
* @param {Array<Array<number>>} coordinates an array of Points
* @param {Object} [properties={}] Translate these properties to each Feature
* @param {Object} [options={}] Optional Parameters
* @param {Array<number>} [options.bbox] Bounding Box Array [west, south, east, north] associated with the FeatureCollection
* @param {string|number} [options.id] Identifier associated with the FeatureCollection
* @returns {FeatureCollection<Point>} Point Feature
* @example
* var points = turf.points([
* [-75, 39],
* [-80, 45],
* [-78, 50]
* ]);
*
* //=points
*/
function points(coordinates, properties, options) {
if (!coordinates) throw new Error('coordinates is required');
if (!Array.isArray(coordinates)) throw new Error('coordinates must be an Array');
return featureCollection(coordinates.map(function (coords) {
return point(coords, properties);
}), options);
}
/**
* Creates a {@link Polygon} {@link Feature} from an Array of LinearRings.
*
* @name polygon
* @param {Array<Array<Array<number>>>} coordinates an array of LinearRings
* @param {Object} [properties={}] an Object of key-value pairs to add as properties
* @param {Object} [options={}] Optional Parameters
* @param {Array<number>} [options.bbox] Bounding Box Array [west, south, east, north] associated with the Feature
* @param {string|number} [options.id] Identifier associated with the Feature
* @returns {Feature<Polygon>} Polygon Feature
* @example
* var polygon = turf.polygon([[[-5, 52], [-4, 56], [-2, 51], [-7, 54], [-5, 52]]], { name: 'poly1' });
*
* //=polygon
*/
function polygon(coordinates, properties, options) {
if (!coordinates) throw new Error('coordinates is required');
for (var i = 0; i < coordinates.length; i++) {
var ring = coordinates[i];
if (ring.length < 4) {
throw new Error('Each LinearRing of a Polygon must have 4 or more Positions.');
}
for (var j = 0; j < ring[ring.length - 1].length; j++) {
// Check if first point of Polygon contains two numbers
if (i === 0 && j === 0 && !isNumber(ring[0][0]) || !isNumber(ring[0][1])) throw new Error('coordinates must contain numbers');
if (ring[ring.length - 1][j] !== ring[0][j]) {
throw new Error('First and last Position are not equivalent.');
}
}
}
return feature({
type: 'Polygon',
coordinates: coordinates
}, properties, options);
}
/**
* Creates a {@link Polygon} {@link FeatureCollection} from an Array of Polygon coordinates.
*
* @name polygons
* @param {Array<Array<Array<Array<number>>>>} coordinates an array of Polygon coordinates
* @param {Object} [properties={}] an Object of key-value pairs to add as properties
* @param {Object} [options={}] Optional Parameters
* @param {Array<number>} [options.bbox] Bounding Box Array [west, south, east, north] associated with the Feature
* @param {string|number} [options.id] Identifier associated with the FeatureCollection
* @returns {FeatureCollection<Polygon>} Polygon FeatureCollection
* @example
* var polygons = turf.polygons([
* [[[-5, 52], [-4, 56], [-2, 51], [-7, 54], [-5, 52]]],
* [[[-15, 42], [-14, 46], [-12, 41], [-17, 44], [-15, 42]]],
* ]);
*
* //=polygons
*/
function polygons(coordinates, properties, options) {
if (!coordinates) throw new Error('coordinates is required');
if (!Array.isArray(coordinates)) throw new Error('coordinates must be an Array');
return featureCollection(coordinates.map(function (coords) {
return polygon(coords, properties);
}), options);
}
/**
* Creates a {@link LineString} {@link Feature} from an Array of Positions.
*
* @name lineString
* @param {Array<Array<number>>} coordinates an array of Positions
* @param {Object} [properties={}] an Object of key-value pairs to add as properties
* @param {Object} [options={}] Optional Parameters
* @param {Array<number>} [options.bbox] Bounding Box Array [west, south, east, north] associated with the Feature
* @param {string|number} [options.id] Identifier associated with the Feature
* @returns {Feature<LineString>} LineString Feature
* @example
* var linestring1 = turf.lineString([[-24, 63], [-23, 60], [-25, 65], [-20, 69]], {name: 'line 1'});
* var linestring2 = turf.lineString([[-14, 43], [-13, 40], [-15, 45], [-10, 49]], {name: 'line 2'});
*
* //=linestring1
* //=linestring2
*/
function lineString(coordinates, properties, options) {
if (!coordinates) throw new Error('coordinates is required');
if (coordinates.length < 2) throw new Error('coordinates must be an array of two or more positions');
// Check if first point of LineString contains two numbers
if (!isNumber(coordinates[0][1]) || !isNumber(coordinates[0][1])) throw new Error('coordinates must contain numbers');
return feature({
type: 'LineString',
coordinates: coordinates
}, properties, options);
}
/**
* Creates a {@link LineString} {@link FeatureCollection} from an Array of LineString coordinates.
*
* @name lineStrings
* @param {Array<Array<number>>} coordinates an array of LinearRings
* @param {Object} [properties={}] an Object of key-value pairs to add as properties
* @param {Object} [options={}] Optional Parameters
* @param {Array<number>} [options.bbox] Bounding Box Array [west, south, east, north] associated with the FeatureCollection
* @param {string|number} [options.id] Identifier associated with the FeatureCollection
* @returns {FeatureCollection<LineString>} LineString FeatureCollection
* @example
* var linestrings = turf.lineStrings([
* [[-24, 63], [-23, 60], [-25, 65], [-20, 69]],
* [[-14, 43], [-13, 40], [-15, 45], [-10, 49]]
* ]);
*
* //=linestrings
*/
function lineStrings(coordinates, properties, options) {
if (!coordinates) throw new Error('coordinates is required');
if (!Array.isArray(coordinates)) throw new Error('coordinates must be an Array');
return featureCollection(coordinates.map(function (coords) {
return lineString(coords, properties);
}), options);
}
/**
* Takes one or more {@link Feature|Features} and creates a {@link FeatureCollection}.
*
* @name featureCollection
* @param {Feature[]} features input features
* @param {Object} [options={}] Optional Parameters
* @param {Array<number>} [options.bbox] Bounding Box Array [west, south, east, north] associated with the Feature
* @param {string|number} [options.id] Identifier associated with the Feature
* @returns {FeatureCollection} FeatureCollection of Features
* @example
* var locationA = turf.point([-75.343, 39.984], {name: 'Location A'});
* var locationB = turf.point([-75.833, 39.284], {name: 'Location B'});
* var locationC = turf.point([-75.534, 39.123], {name: 'Location C'});
*
* var collection = turf.featureCollection([
* locationA,
* locationB,
* locationC
* ]);
*
* //=collection
*/
function featureCollection(features, options) {
// Optional Parameters
options = options || {};
if (!isObject(options)) throw new Error('options is invalid');
var bbox = options.bbox;
var id = options.id;
// Validation
if (!features) throw new Error('No features passed');
if (!Array.isArray(features)) throw new Error('features must be an Array');
if (bbox) validateBBox(bbox);
if (id) validateId(id);
// Main
var fc = {type: 'FeatureCollection'};
if (id) fc.id = id;
if (bbox) fc.bbox = bbox;
fc.features = features;
return fc;
}
/**
* Creates a {@link Feature<MultiLineString>} based on a
* coordinate array. Properties can be added optionally.
*
* @name multiLineString
* @param {Array<Array<Array<number>>>} coordinates an array of LineStrings
* @param {Object} [properties={}] an Object of key-value pairs to add as properties
* @param {Object} [options={}] Optional Parameters
* @param {Array<number>} [options.bbox] Bounding Box Array [west, south, east, north] associated with the Feature
* @param {string|number} [options.id] Identifier associated with the Feature
* @returns {Feature<MultiLineString>} a MultiLineString feature
* @throws {Error} if no coordinates are passed
* @example
* var multiLine = turf.multiLineString([[[0,0],[10,10]]]);
*
* //=multiLine
*/
function multiLineString(coordinates, properties, options) {
if (!coordinates) throw new Error('coordinates is required');
return feature({
type: 'MultiLineString',
coordinates: coordinates
}, properties, options);
}
/**
* Creates a {@link Feature<MultiPoint>} based on a
* coordinate array. Properties can be added optionally.
*
* @name multiPoint
* @param {Array<Array<number>>} coordinates an array of Positions
* @param {Object} [properties={}] an Object of key-value pairs to add as properties
* @param {Object} [options={}] Optional Parameters
* @param {Array<number>} [options.bbox] Bounding Box Array [west, south, east, north] associated with the Feature
* @param {string|number} [options.id] Identifier associated with the Feature
* @returns {Feature<MultiPoint>} a MultiPoint feature
* @throws {Error} if no coordinates are passed
* @example
* var multiPt = turf.multiPoint([[0,0],[10,10]]);
*
* //=multiPt
*/
function multiPoint(coordinates, properties, options) {
if (!coordinates) throw new Error('coordinates is required');
return feature({
type: 'MultiPoint',
coordinates: coordinates
}, properties, options);
}
/**
* Creates a {@link Feature<MultiPolygon>} based on a
* coordinate array. Properties can be added optionally.
*
* @name multiPolygon
* @param {Array<Array<Array<Array<number>>>>} coordinates an array of Polygons
* @param {Object} [properties={}] an Object of key-value pairs to add as properties
* @param {Object} [options={}] Optional Parameters
* @param {Array<number>} [options.bbox] Bounding Box Array [west, south, east, north] associated with the Feature
* @param {string|number} [options.id] Identifier associated with the Feature
* @returns {Feature<MultiPolygon>} a multipolygon feature
* @throws {Error} if no coordinates are passed
* @example
* var multiPoly = turf.multiPolygon([[[[0,0],[0,10],[10,10],[10,0],[0,0]]]]);
*
* //=multiPoly
*
*/
function multiPolygon(coordinates, properties, options) {
if (!coordinates) throw new Error('coordinates is required');
return feature({
type: 'MultiPolygon',
coordinates: coordinates
}, properties, options);
}
/**
* Creates a {@link Feature<GeometryCollection>} based on a
* coordinate array. Properties can be added optionally.
*
* @name geometryCollection
* @param {Array<Geometry>} geometries an array of GeoJSON Geometries
* @param {Object} [properties={}] an Object of key-value pairs to add as properties
* @param {Object} [options={}] Optional Parameters
* @param {Array<number>} [options.bbox] Bounding Box Array [west, south, east, north] associated with the Feature
* @param {string|number} [options.id] Identifier associated with the Feature
* @returns {Feature<GeometryCollection>} a GeoJSON GeometryCollection Feature
* @example
* var pt = {
* "type": "Point",
* "coordinates": [100, 0]
* };
* var line = {
* "type": "LineString",
* "coordinates": [ [101, 0], [102, 1] ]
* };
* var collection = turf.geometryCollection([pt, line]);
*
* //=collection
*/
function geometryCollection(geometries, properties, options) {
if (!geometries) throw new Error('geometries is required');
if (!Array.isArray(geometries)) throw new Error('geometries must be an Array');
return feature({
type: 'GeometryCollection',
geometries: geometries
}, properties, options);
}
/**
* Round number to precision
*
* @param {number} num Number
* @param {number} [precision=0] Precision
* @returns {number} rounded number
* @example
* turf.round(120.4321)
* //=120
*
* turf.round(120.4321, 2)
* //=120.43
*/
function round(num, precision) {
if (num === undefined || num === null || isNaN(num)) throw new Error('num is required');
if (precision && !(precision >= 0)) throw new Error('precision must be a positive number');
var multiplier = Math.pow(10, precision || 0);
return Math.round(num * multiplier) / multiplier;
}
/**
* Convert a distance measurement (assuming a spherical Earth) from radians to a more friendly unit.
* Valid units: miles, nauticalmiles, inches, yards, meters, metres, kilometers, centimeters, feet
*
* @name radiansToLength
* @param {number} radians in radians across the sphere
* @param {string} [units='kilometers'] can be degrees, radians, miles, or kilometers inches, yards, metres, meters, kilometres, kilometers.
* @returns {number} distance
*/
function radiansToLength(radians, units) {
if (radians === undefined || radians === null) throw new Error('radians is required');
if (units && typeof units !== 'string') throw new Error('units must be a string');
var factor = factors[units || 'kilometers'];
if (!factor) throw new Error(units + ' units is invalid');
return radians * factor;
}
/**
* Convert a distance measurement (assuming a spherical Earth) from a real-world unit into radians
* Valid units: miles, nauticalmiles, inches, yards, meters, metres, kilometers, centimeters, feet
*
* @name lengthToRadians
* @param {number} distance in real units
* @param {string} [units='kilometers'] can be degrees, radians, miles, or kilometers inches, yards, metres, meters, kilometres, kilometers.
* @returns {number} radians
*/
function lengthToRadians(distance, units) {
if (distance === undefined || distance === null) throw new Error('distance is required');
if (units && typeof units !== 'string') throw new Error('units must be a string');
var factor = factors[units || 'kilometers'];
if (!factor) throw new Error(units + ' units is invalid');
return distance / factor;
}
/**
* Convert a distance measurement (assuming a spherical Earth) from a real-world unit into degrees
* Valid units: miles, nauticalmiles, inches, yards, meters, metres, centimeters, kilometres, feet
*
* @name lengthToDegrees
* @param {number} distance in real units
* @param {string} [units='kilometers'] can be degrees, radians, miles, or kilometers inches, yards, metres, meters, kilometres, kilometers.
* @returns {number} degrees
*/
function lengthToDegrees(distance, units) {
return radiansToDegrees(lengthToRadians(distance, units));
}
/**
* Converts any bearing angle from the north line direction (positive clockwise)
* and returns an angle between 0-360 degrees (positive clockwise), 0 being the north line
*
* @name bearingToAzimuth
* @param {number} bearing angle, between -180 and +180 degrees
* @returns {number} angle between 0 and 360 degrees
*/
function bearingToAzimuth(bearing) {
if (bearing === null || bearing === undefined) throw new Error('bearing is required');
var angle = bearing % 360;
if (angle < 0) angle += 360;
return angle;
}
/**
* Converts an angle in radians to degrees
*
* @name radiansToDegrees
* @param {number} radians angle in radians
* @returns {number} degrees between 0 and 360 degrees
*/
function radiansToDegrees(radians) {
if (radians === null || radians === undefined) throw new Error('radians is required');
var degrees = radians % (2 * Math.PI);
return degrees * 180 / Math.PI;
}
/**
* Converts an angle in degrees to radians
*
* @name degreesToRadians
* @param {number} degrees angle between 0 and 360 degrees
* @returns {number} angle in radians
*/
function degreesToRadians(degrees) {
if (degrees === null || degrees === undefined) throw new Error('degrees is required');
var radians = degrees % 360;
return radians * Math.PI / 180;
}
/**
* Converts a length to the requested unit.
* Valid units: miles, nauticalmiles, inches, yards, meters, metres, kilometers, centimeters, feet
*
* @param {number} length to be converted
* @param {string} originalUnit of the length
* @param {string} [finalUnit='kilometers'] returned unit
* @returns {number} the converted length
*/
function convertLength(length, originalUnit, finalUnit) {
if (length === null || length === undefined) throw new Error('length is required');
if (!(length >= 0)) throw new Error('length must be a positive number');
return radiansToLength(lengthToRadians(length, originalUnit), finalUnit || 'kilometers');
}
/**
* Converts a area to the requested unit.
* Valid units: kilometers, kilometres, meters, metres, centimetres, millimeters, acres, miles, yards, feet, inches
* @param {number} area to be converted
* @param {string} [originalUnit='meters'] of the distance
* @param {string} [finalUnit='kilometers'] returned unit
* @returns {number} the converted distance
*/
function convertArea(area, originalUnit, finalUnit) {
if (area === null || area === undefined) throw new Error('area is required');
if (!(area >= 0)) throw new Error('area must be a positive number');
var startFactor = areaFactors[originalUnit || 'meters'];
if (!startFactor) throw new Error('invalid original units');
var finalFactor = areaFactors[finalUnit || 'kilometers'];
if (!finalFactor) throw new Error('invalid final units');
return (area / startFactor) * finalFactor;
}
/**
* isNumber
*
* @param {*} num Number to validate
* @returns {boolean} true/false
* @example
* turf.isNumber(123)
* //=true
* turf.isNumber('foo')
* //=false
*/
function isNumber(num) {
return !isNaN(num) && num !== null && !Array.isArray(num);
}
/**
* isObject
*
* @param {*} input variable to validate
* @returns {boolean} true/false
* @example
* turf.isObject({elevation: 10})
* //=true
* turf.isObject('foo')
* //=false
*/
function isObject(input) {
return (!!input) && (input.constructor === Object);
}
/**
* Validate BBox
*
* @private
* @param {Array<number>} bbox BBox to validate
* @returns {void}
* @throws Error if BBox is not valid
* @example
* validateBBox([-180, -40, 110, 50])
* //=OK
* validateBBox([-180, -40])
* //=Error
* validateBBox('Foo')
* //=Error
* validateBBox(5)
* //=Error
* validateBBox(null)
* //=Error
* validateBBox(undefined)
* //=Error
*/
function validateBBox(bbox) {
if (!bbox) throw new Error('bbox is required');
if (!Array.isArray(bbox)) throw new Error('bbox must be an Array');
if (bbox.length !== 4 && bbox.length !== 6) throw new Error('bbox must be an Array of 4 or 6 numbers');
bbox.forEach(function (num) {
if (!isNumber(num)) throw new Error('bbox must only contain numbers');
});
}
/**
* Validate Id
*
* @private
* @param {string|number} id Id to validate
* @returns {void}
* @throws Error if Id is not valid
* @example
* validateId([-180, -40, 110, 50])
* //=Error
* validateId([-180, -40])
* //=Error
* validateId('Foo')
* //=OK
* validateId(5)
* //=OK
* validateId(null)
* //=Error
* validateId(undefined)
* //=Error
*/
function validateId(id) {
if (!id) throw new Error('id is required');
if (['string', 'number'].indexOf(typeof id) === -1) throw new Error('id must be a number or a string');
}
// Deprecated methods
function radians2degrees() {
throw new Error('method has been renamed to `radiansToDegrees`');
}
function degrees2radians() {
throw new Error('method has been renamed to `degreesToRadians`');
}
function distanceToDegrees() {
throw new Error('method has been renamed to `lengthToDegrees`');
}
function distanceToRadians() {
throw new Error('method has been renamed to `lengthToRadians`');
}
function radiansToDistance() {
throw new Error('method has been renamed to `radiansToLength`');
}
function bearingToAngle() {
throw new Error('method has been renamed to `bearingToAzimuth`');
}
function convertDistance() {
throw new Error('method has been renamed to `convertLength`');
}
exports.earthRadius = earthRadius;
exports.factors = factors;
exports.unitsFactors = unitsFactors;
exports.areaFactors = areaFactors;
exports.feature = feature;
exports.geometry = geometry;
exports.point = point;
exports.points = points;
exports.polygon = polygon;
exports.polygons = polygons;
exports.lineString = lineString;
exports.lineStrings = lineStrings;
exports.featureCollection = featureCollection;
exports.multiLineString = multiLineString;
exports.multiPoint = multiPoint;
exports.multiPolygon = multiPolygon;
exports.geometryCollection = geometryCollection;
exports.round = round;
exports.radiansToLength = radiansToLength;
exports.lengthToRadians = lengthToRadians;
exports.lengthToDegrees = lengthToDegrees;
exports.bearingToAzimuth = bearingToAzimuth;
exports.radiansToDegrees = radiansToDegrees;
exports.degreesToRadians = degreesToRadians;
exports.convertLength = convertLength;
exports.convertArea = convertArea;
exports.isNumber = isNumber;
exports.isObject = isObject;
exports.validateBBox = validateBBox;
exports.validateId = validateId;
exports.radians2degrees = radians2degrees;
exports.degrees2radians = degrees2radians;
exports.distanceToDegrees = distanceToDegrees;
exports.distanceToRadians = distanceToRadians;
exports.radiansToDistance = radiansToDistance;
exports.bearingToAngle = bearingToAngle;
exports.convertDistance = convertDistance;
},{}],15:[function(require,module,exports){
var invariant = require('@turf/invariant');
// http://en.wikipedia.org/wiki/Even%E2%80%93odd_rule
// modified from: https://github.com/substack/point-in-polygon/blob/master/index.js
// which was modified from http://www.ecse.rpi.edu/Homepages/wrf/Research/Short_Notes/pnpoly.html
/**
* Takes a {@link Point} and a {@link Polygon} or {@link MultiPolygon} and determines if the point resides inside the polygon. The polygon can
* be convex or concave. The function accounts for holes.
*
* @name inside
* @param {Feature<Point>} point input point
* @param {Feature<(Polygon|MultiPolygon)>} polygon input polygon or multipolygon
* @return {boolean} `true` if the Point is inside the Polygon; `false` if the Point is not inside the Polygon
* @example
* var pt = turf.point([-77, 44]);
* var poly = turf.polygon([[
* [-81, 41],
* [-81, 47],
* [-72, 47],
* [-72, 41],
* [-81, 41]
* ]]);
*
* var isInside = turf.inside(pt, poly);
*
* //=isInside
*/
module.exports = function input(point, polygon) {
var pt = invariant.getCoord(point);
var polys = polygon.geometry.coordinates;
// normalize to multipolygon
if (polygon.geometry.type === 'Polygon') polys = [polys];
for (var i = 0, insidePoly = false; i < polys.length && !insidePoly; i++) {
// check if it is in the outer ring first
if (inRing(pt, polys[i][0])) {
var inHole = false;
var k = 1;
// check for the point in any of the holes
while (k < polys[i].length && !inHole) {
if (inRing(pt, polys[i][k], true)) {
inHole = true;
}
k++;
}
if (!inHole) insidePoly = true;
}
}
return insidePoly;
};
// pt is [x,y] and ring is [[x,y], [x,y],..]
function inRing(pt, ring, ignoreBoundary) {
var isInside = false;
if (ring[0][0] === ring[ring.length - 1][0] && ring[0][1] === ring[ring.length - 1][1]) ring = ring.slice(0, ring.length - 1);
for (var i = 0, j = ring.length - 1; i < ring.length; j = i++) {
var xi = ring[i][0], yi = ring[i][1];
var xj = ring[j][0], yj = ring[j][1];
var onBoundary = (pt[1] * (xi - xj) + yi * (xj - pt[0]) + yj * (pt[0] - xi) === 0) &&
((xi - pt[0]) * (xj - pt[0]) <= 0) && ((yi - pt[1]) * (yj - pt[1]) <= 0);
if (onBoundary) return !ignoreBoundary;
var intersect = ((yi > pt[1]) !== (yj > pt[1])) &&
(pt[0] < (xj - xi) * (pt[1] - yi) / (yj - yi) + xi);
if (intersect) isInside = !isInside;
}
return isInside;
}
},{"@turf/invariant":16}],16:[function(require,module,exports){
'use strict';
Object.defineProperty(exports, '__esModule', { value: true });
var helpers = require('@turf/helpers');
/**
* Unwrap a coordinate from a Point Feature, Geometry or a single coordinate.
*
* @name getCoord
* @param {Array<number>|Geometry<Point>|Feature<Point>} coord GeoJSON Point or an Array of numbers
* @returns {Array<number>} coordinates
* @example
* var pt = turf.point([10, 10]);
*
* var coord = turf.getCoord(pt);
* //= [10, 10]
*/
function getCoord(coord) {
if (!coord) throw new Error('coord is required');
if (coord.type === 'Feature' && coord.geometry !== null && coord.geometry.type === 'Point') return coord.geometry.coordinates;
if (coord.type === 'Point') return coord.coordinates;
if (Array.isArray(coord) && coord.length >= 2 && coord[0].length === undefined && coord[1].length === undefined) return coord;
throw new Error('coord must be GeoJSON Point or an Array of numbers');
}
/**
* Unwrap coordinates from a Feature, Geometry Object or an Array
*
* @name getCoords
* @param {Array<any>|Geometry|Feature} coords Feature, Geometry Object or an Array
* @returns {Array<any>} coordinates
* @example
* var poly = turf.polygon([[[119.32, -8.7], [119.55, -8.69], [119.51, -8.54], [119.32, -8.7]]]);
*
* var coords = turf.getCoords(poly);
* //= [[[119.32, -8.7], [119.55, -8.69], [119.51, -8.54], [119.32, -8.7]]]
*/
function getCoords(coords) {
if (!coords) throw new Error('coords is required');
// Feature
if (coords.type === 'Feature' && coords.geometry !== null) return coords.geometry.coordinates;
// Geometry
if (coords.coordinates) return coords.coordinates;
// Array of numbers
if (Array.isArray(coords)) return coords;
throw new Error('coords must be GeoJSON Feature, Geometry Object or an Array');
}
/**
* Checks if coordinates contains a number
*
* @name containsNumber
* @param {Array<any>} coordinates GeoJSON Coordinates
* @returns {boolean} true if Array contains a number
*/
function containsNumber(coordinates) {
if (coordinates.length > 1 && helpers.isNumber(coordinates[0]) && helpers.isNumber(coordinates[1])) {
return true;
}
if (Array.isArray(coordinates[0]) && coordinates[0].length) {
return containsNumber(coordinates[0]);
}
throw new Error('coordinates must only contain numbers');
}
/**
* Enforce expectations about types of GeoJSON objects for Turf.
*
* @name geojsonType
* @param {GeoJSON} value any GeoJSON object
* @param {string} type expected GeoJSON type
* @param {string} name name of calling function
* @throws {Error} if value is not the expected type.
*/
function geojsonType(value, type, name) {
if (!type || !name) throw new Error('type and name required');
if (!value || value.type !== type) {
throw new Error('Invalid input to ' + name + ': must be a ' + type + ', given ' + value.type);
}
}
/**
* Enforce expectations about types of {@link Feature} inputs for Turf.
* Internally this uses {@link geojsonType} to judge geometry types.
*
* @name featureOf
* @param {Feature} feature a feature with an expected geometry type
* @param {string} type expected GeoJSON type
* @param {string} name name of calling function
* @throws {Error} error if value is not the expected type.
*/
function featureOf(feature, type, name) {
if (!feature) throw new Error('No feature passed');
if (!name) throw new Error('.featureOf() requires a name');
if (!feature || feature.type !== 'Feature' || !feature.geometry) {
throw new Error('Invalid input to ' + name + ', Feature with geometry required');
}
if (!feature.geometry || feature.geometry.type !== type) {
throw new Error('Invalid input to ' + name + ': must be a ' + type + ', given ' + feature.geometry.type);
}
}
/**
* Enforce expectations about types of {@link FeatureCollection} inputs for Turf.
* Internally this uses {@link geojsonType} to judge geometry types.
*
* @name collectionOf
* @param {FeatureCollection} featureCollection a FeatureCollection for which features will be judged
* @param {string} type expected GeoJSON type
* @param {string} name name of calling function
* @throws {Error} if value is not the expected type.
*/
function collectionOf(featureCollection, type, name) {
if (!featureCollection) throw new Error('No featureCollection passed');
if (!name) throw new Error('.collectionOf() requires a name');
if (!featureCollection || featureCollection.type !== 'FeatureCollection') {
throw new Error('Invalid input to ' + name + ', FeatureCollection required');
}
for (var i = 0; i < featureCollection.features.length; i++) {
var feature = featureCollection.features[i];
if (!feature || feature.type !== 'Feature' || !feature.geometry) {
throw new Error('Invalid input to ' + name + ', Feature with geometry required');
}
if (!feature.geometry || feature.geometry.type !== type) {
throw new Error('Invalid input to ' + name + ': must be a ' + type + ', given ' + feature.geometry.type);
}
}
}
/**
* Get Geometry from Feature or Geometry Object
*
* @param {Feature|Geometry} geojson GeoJSON Feature or Geometry Object
* @returns {Geometry|null} GeoJSON Geometry Object
* @throws {Error} if geojson is not a Feature or Geometry Object
* @example
* var point = {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [110, 40]
* }
* }
* var geom = turf.getGeom(point)
* //={"type": "Point", "coordinates": [110, 40]}
*/
function getGeom(geojson) {
if (!geojson) throw new Error('geojson is required');
if (geojson.geometry !== undefined) return geojson.geometry;
if (geojson.coordinates || geojson.geometries) return geojson;
throw new Error('geojson must be a valid Feature or Geometry Object');
}
/**
* Get Geometry Type from Feature or Geometry Object
*
* @throws {Error} **DEPRECATED** in v5.0.0 in favor of getType
*/
function getGeomType() {
throw new Error('invariant.getGeomType has been deprecated in v5.0 in favor of invariant.getType');
}
/**
* Get GeoJSON object's type, Geometry type is prioritize.
*
* @param {GeoJSON} geojson GeoJSON object
* @param {string} [name="geojson"] name of the variable to display in error message
* @returns {string} GeoJSON type
* @example
* var point = {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [110, 40]
* }
* }
* var geom = turf.getType(point)
* //="Point"
*/
function getType(geojson, name) {
if (!geojson) throw new Error((name || 'geojson') + ' is required');
// GeoJSON Feature & GeometryCollection
if (geojson.geometry && geojson.geometry.type) return geojson.geometry.type;
// GeoJSON Geometry & FeatureCollection
if (geojson.type) return geojson.type;
throw new Error((name || 'geojson') + ' is invalid');
}
exports.getCoord = getCoord;
exports.getCoords = getCoords;
exports.containsNumber = containsNumber;
exports.geojsonType = geojsonType;
exports.featureOf = featureOf;
exports.collectionOf = collectionOf;
exports.getGeom = getGeom;
exports.getGeomType = getGeomType;
exports.getType = getType;
},{"@turf/helpers":14}],17:[function(require,module,exports){
var helpers = require('@turf/helpers');
var meta = require('@turf/meta');
var lineSegment = require('@turf/line-segment');
var getCoords = require('@turf/invariant').getCoords;
var rbush = require('geojson-rbush');
var point = helpers.point;
var featureCollection = helpers.featureCollection;
var featureEach = meta.featureEach;
/**
* Takes any LineString or Polygon GeoJSON and returns the intersecting point(s).
*
* @name lineIntersect
* @param {FeatureCollection|Feature<LineString|MultiLineString|Polygon|MultiPolygon>} line1 any LineString or Polygon
* @param {FeatureCollection|Feature<LineString|MultiLineString|Polygon|MultiPolygon>} line2 any LineString or Polygon
* @returns {FeatureCollection<Point>} point(s) that intersect both
* @example
* var line1 = {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "LineString",
* "coordinates": [[126, -11], [129, -21]]
* }
* };
* var line2 = {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "LineString",
* "coordinates": [[123, -18], [131, -14]]
* }
* };
* var points = turf.lineIntersect(line1, line2);
* //= points
*/
module.exports = function (line1, line2) {
var results = [];
// Handles simple 2-vertex segments
if (line1.geometry.type === 'LineString' &&
line2.geometry.type === 'LineString' &&
line1.geometry.coordinates.length === 2 &&
line2.geometry.coordinates.length === 2) {
var intersect = intersects(line1, line2);
if (intersect) results.push(intersect);
return featureCollection(results);
}
// Handles complex GeoJSON Geometries
var tree = rbush();
tree.load(lineSegment(line2));
featureEach(lineSegment(line1), function (segment) {
featureEach(tree.search(segment), function (match) {
var intersect = intersects(segment, match);
if (intersect) results.push(intersect);
});
});
return featureCollection(results);
};
/**
* Find a point that intersects LineStrings with two coordinates each
*
* @private
* @param {Feature<LineString>} line1 GeoJSON LineString (Must only contain 2 coordinates)
* @param {Feature<LineString>} line2 GeoJSON LineString (Must only contain 2 coordinates)
* @returns {Feature<Point>} intersecting GeoJSON Point
*/
function intersects(line1, line2) {
var coords1 = getCoords(line1);
var coords2 = getCoords(line2);
if (coords1.length !== 2) {
throw new Error('<intersects> line1 must only contain 2 coordinates');
}
if (coords2.length !== 2) {
throw new Error('<intersects> line2 must only contain 2 coordinates');
}
var x1 = coords1[0][0];
var y1 = coords1[0][1];
var x2 = coords1[1][0];
var y2 = coords1[1][1];
var x3 = coords2[0][0];
var y3 = coords2[0][1];
var x4 = coords2[1][0];
var y4 = coords2[1][1];
var denom = ((y4 - y3) * (x2 - x1)) - ((x4 - x3) * (y2 - y1));
var numeA = ((x4 - x3) * (y1 - y3)) - ((y4 - y3) * (x1 - x3));
var numeB = ((x2 - x1) * (y1 - y3)) - ((y2 - y1) * (x1 - x3));
if (denom === 0) {
if (numeA === 0 && numeB === 0) {
return null;
}
return null;
}
var uA = numeA / denom;
var uB = numeB / denom;
if (uA >= 0 && uA <= 1 && uB >= 0 && uB <= 1) {
var x = x1 + (uA * (x2 - x1));
var y = y1 + (uA * (y2 - y1));
return point([x, y]);
}
return null;
}
},{"@turf/helpers":18,"@turf/invariant":19,"@turf/line-segment":22,"@turf/meta":20,"geojson-rbush":41}],18:[function(require,module,exports){
arguments[4][4][0].apply(exports,arguments)
},{"dup":4}],19:[function(require,module,exports){
arguments[4][5][0].apply(exports,arguments)
},{"dup":5}],20:[function(require,module,exports){
/**
* Callback for coordEach
*
* @private
* @callback coordEachCallback
* @param {[number, number]} currentCoords The current coordinates being processed.
* @param {number} currentIndex The index of the current element being processed in the
* array.Starts at index 0, if an initialValue is provided, and at index 1 otherwise.
*/
/**
* Iterate over coordinates in any GeoJSON object, similar to Array.forEach()
*
* @name coordEach
* @param {Object} layer any GeoJSON object
* @param {Function} callback a method that takes (currentCoords, currentIndex)
* @param {boolean} [excludeWrapCoord=false] whether or not to include
* the final coordinate of LinearRings that wraps the ring in its iteration.
* @example
* var features = {
* "type": "FeatureCollection",
* "features": [
* {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [26, 37]
* }
* },
* {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [36, 53]
* }
* }
* ]
* };
* turf.coordEach(features, function (currentCoords, currentIndex) {
* //=currentCoords
* //=currentIndex
* });
*/
function coordEach(layer, callback, excludeWrapCoord) {
var i, j, k, g, l, geometry, stopG, coords,
geometryMaybeCollection,
wrapShrink = 0,
currentIndex = 0,
isGeometryCollection,
isFeatureCollection = layer.type === 'FeatureCollection',
isFeature = layer.type === 'Feature',
stop = isFeatureCollection ? layer.features.length : 1;
// This logic may look a little weird. The reason why it is that way
// is because it's trying to be fast. GeoJSON supports multiple kinds
// of objects at its root: FeatureCollection, Features, Geometries.
// This function has the responsibility of handling all of them, and that
// means that some of the `for` loops you see below actually just don't apply
// to certain inputs. For instance, if you give this just a
// Point geometry, then both loops are short-circuited and all we do
// is gradually rename the input until it's called 'geometry'.
//
// This also aims to allocate as few resources as possible: just a
// few numbers and booleans, rather than any temporary arrays as would
// be required with the normalization approach.
for (i = 0; i < stop; i++) {
geometryMaybeCollection = (isFeatureCollection ? layer.features[i].geometry :
(isFeature ? layer.geometry : layer));
isGeometryCollection = geometryMaybeCollection.type === 'GeometryCollection';
stopG = isGeometryCollection ? geometryMaybeCollection.geometries.length : 1;
for (g = 0; g < stopG; g++) {
geometry = isGeometryCollection ?
geometryMaybeCollection.geometries[g] : geometryMaybeCollection;
coords = geometry.coordinates;
wrapShrink = (excludeWrapCoord &&
(geometry.type === 'Polygon' || geometry.type === 'MultiPolygon')) ?
1 : 0;
if (geometry.type === 'Point') {
callback(coords, currentIndex);
currentIndex++;
} else if (geometry.type === 'LineString' || geometry.type === 'MultiPoint') {
for (j = 0; j < coords.length; j++) {
callback(coords[j], currentIndex);
currentIndex++;
}
} else if (geometry.type === 'Polygon' || geometry.type === 'MultiLineString') {
for (j = 0; j < coords.length; j++)
for (k = 0; k < coords[j].length - wrapShrink; k++) {
callback(coords[j][k], currentIndex);
currentIndex++;
}
} else if (geometry.type === 'MultiPolygon') {
for (j = 0; j < coords.length; j++)
for (k = 0; k < coords[j].length; k++)
for (l = 0; l < coords[j][k].length - wrapShrink; l++) {
callback(coords[j][k][l], currentIndex);
currentIndex++;
}
} else if (geometry.type === 'GeometryCollection') {
for (j = 0; j < geometry.geometries.length; j++)
coordEach(geometry.geometries[j], callback, excludeWrapCoord);
} else {
throw new Error('Unknown Geometry Type');
}
}
}
}
/**
* Callback for coordReduce
*
* The first time the callback function is called, the values provided as arguments depend
* on whether the reduce method has an initialValue argument.
*
* If an initialValue is provided to the reduce method:
* - The previousValue argument is initialValue.
* - The currentValue argument is the value of the first element present in the array.
*
* If an initialValue is not provided:
* - The previousValue argument is the value of the first element present in the array.
* - The currentValue argument is the value of the second element present in the array.
*
* @private
* @callback coordReduceCallback
* @param {*} previousValue The accumulated value previously returned in the last invocation
* of the callback, or initialValue, if supplied.
* @param {[number, number]} currentCoords The current coordinate being processed.
* @param {number} currentIndex The index of the current element being processed in the
* array.Starts at index 0, if an initialValue is provided, and at index 1 otherwise.
*/
/**
* Reduce coordinates in any GeoJSON object, similar to Array.reduce()
*
* @name coordReduce
* @param {Object} layer any GeoJSON object
* @param {Function} callback a method that takes (previousValue, currentCoords, currentIndex)
* @param {*} [initialValue] Value to use as the first argument to the first call of the callback.
* @param {boolean} [excludeWrapCoord=false] whether or not to include
* the final coordinate of LinearRings that wraps the ring in its iteration.
* @returns {*} The value that results from the reduction.
* @example
* var features = {
* "type": "FeatureCollection",
* "features": [
* {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [26, 37]
* }
* },
* {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [36, 53]
* }
* }
* ]
* };
* turf.coordReduce(features, function (previousValue, currentCoords, currentIndex) {
* //=previousValue
* //=currentCoords
* //=currentIndex
* return currentCoords;
* });
*/
function coordReduce(layer, callback, initialValue, excludeWrapCoord) {
var previousValue = initialValue;
coordEach(layer, function (currentCoords, currentIndex) {
if (currentIndex === 0 && initialValue === undefined) {
previousValue = currentCoords;
} else {
previousValue = callback(previousValue, currentCoords, currentIndex);
}
}, excludeWrapCoord);
return previousValue;
}
/**
* Callback for propEach
*
* @private
* @callback propEachCallback
* @param {*} currentProperties The current properties being processed.
* @param {number} currentIndex The index of the current element being processed in the
* array.Starts at index 0, if an initialValue is provided, and at index 1 otherwise.
*/
/**
* Iterate over properties in any GeoJSON object, similar to Array.forEach()
*
* @name propEach
* @param {Object} layer any GeoJSON object
* @param {Function} callback a method that takes (currentProperties, currentIndex)
* @example
* var features = {
* "type": "FeatureCollection",
* "features": [
* {
* "type": "Feature",
* "properties": {"foo": "bar"},
* "geometry": {
* "type": "Point",
* "coordinates": [26, 37]
* }
* },
* {
* "type": "Feature",
* "properties": {"hello": "world"},
* "geometry": {
* "type": "Point",
* "coordinates": [36, 53]
* }
* }
* ]
* };
* turf.propEach(features, function (currentProperties, currentIndex) {
* //=currentProperties
* //=currentIndex
* });
*/
function propEach(layer, callback) {
var i;
switch (layer.type) {
case 'FeatureCollection':
for (i = 0; i < layer.features.length; i++) {
callback(layer.features[i].properties, i);
}
break;
case 'Feature':
callback(layer.properties, 0);
break;
}
}
/**
* Callback for propReduce
*
* The first time the callback function is called, the values provided as arguments depend
* on whether the reduce method has an initialValue argument.
*
* If an initialValue is provided to the reduce method:
* - The previousValue argument is initialValue.
* - The currentValue argument is the value of the first element present in the array.
*
* If an initialValue is not provided:
* - The previousValue argument is the value of the first element present in the array.
* - The currentValue argument is the value of the second element present in the array.
*
* @private
* @callback propReduceCallback
* @param {*} previousValue The accumulated value previously returned in the last invocation
* of the callback, or initialValue, if supplied.
* @param {*} currentProperties The current properties being processed.
* @param {number} currentIndex The index of the current element being processed in the
* array.Starts at index 0, if an initialValue is provided, and at index 1 otherwise.
*/
/**
* Reduce properties in any GeoJSON object into a single value,
* similar to how Array.reduce works. However, in this case we lazily run
* the reduction, so an array of all properties is unnecessary.
*
* @name propReduce
* @param {Object} layer any GeoJSON object
* @param {Function} callback a method that takes (previousValue, currentProperties, currentIndex)
* @param {*} [initialValue] Value to use as the first argument to the first call of the callback.
* @returns {*} The value that results from the reduction.
* @example
* var features = {
* "type": "FeatureCollection",
* "features": [
* {
* "type": "Feature",
* "properties": {"foo": "bar"},
* "geometry": {
* "type": "Point",
* "coordinates": [26, 37]
* }
* },
* {
* "type": "Feature",
* "properties": {"hello": "world"},
* "geometry": {
* "type": "Point",
* "coordinates": [36, 53]
* }
* }
* ]
* };
* turf.propReduce(features, function (previousValue, currentProperties, currentIndex) {
* //=previousValue
* //=currentProperties
* //=currentIndex
* return currentProperties
* });
*/
function propReduce(layer, callback, initialValue) {
var previousValue = initialValue;
propEach(layer, function (currentProperties, currentIndex) {
if (currentIndex === 0 && initialValue === undefined) {
previousValue = currentProperties;
} else {
previousValue = callback(previousValue, currentProperties, currentIndex);
}
});
return previousValue;
}
/**
* Callback for featureEach
*
* @private
* @callback featureEachCallback
* @param {Feature<any>} currentFeature The current feature being processed.
* @param {number} currentIndex The index of the current element being processed in the
* array.Starts at index 0, if an initialValue is provided, and at index 1 otherwise.
*/
/**
* Iterate over features in any GeoJSON object, similar to
* Array.forEach.
*
* @name featureEach
* @param {Object} layer any GeoJSON object
* @param {Function} callback a method that takes (currentFeature, currentIndex)
* @example
* var features = {
* "type": "FeatureCollection",
* "features": [
* {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [26, 37]
* }
* },
* {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [36, 53]
* }
* }
* ]
* };
* turf.featureEach(features, function (currentFeature, currentIndex) {
* //=currentFeature
* //=currentIndex
* });
*/
function featureEach(layer, callback) {
if (layer.type === 'Feature') {
callback(layer, 0);
} else if (layer.type === 'FeatureCollection') {
for (var i = 0; i < layer.features.length; i++) {
callback(layer.features[i], i);
}
}
}
/**
* Callback for featureReduce
*
* The first time the callback function is called, the values provided as arguments depend
* on whether the reduce method has an initialValue argument.
*
* If an initialValue is provided to the reduce method:
* - The previousValue argument is initialValue.
* - The currentValue argument is the value of the first element present in the array.
*
* If an initialValue is not provided:
* - The previousValue argument is the value of the first element present in the array.
* - The currentValue argument is the value of the second element present in the array.
*
* @private
* @callback featureReduceCallback
* @param {*} previousValue The accumulated value previously returned in the last invocation
* of the callback, or initialValue, if supplied.
* @param {Feature<any>} currentFeature The current Feature being processed.
* @param {number} currentIndex The index of the current element being processed in the
* array.Starts at index 0, if an initialValue is provided, and at index 1 otherwise.
*/
/**
* Reduce features in any GeoJSON object, similar to Array.reduce().
*
* @name featureReduce
* @param {Object} layer any GeoJSON object
* @param {Function} callback a method that takes (previousValue, currentFeature, currentIndex)
* @param {*} [initialValue] Value to use as the first argument to the first call of the callback.
* @returns {*} The value that results from the reduction.
* @example
* var features = {
* "type": "FeatureCollection",
* "features": [
* {
* "type": "Feature",
* "properties": {"foo": "bar"},
* "geometry": {
* "type": "Point",
* "coordinates": [26, 37]
* }
* },
* {
* "type": "Feature",
* "properties": {"hello": "world"},
* "geometry": {
* "type": "Point",
* "coordinates": [36, 53]
* }
* }
* ]
* };
* turf.featureReduce(features, function (previousValue, currentFeature, currentIndex) {
* //=previousValue
* //=currentFeature
* //=currentIndex
* return currentFeature
* });
*/
function featureReduce(layer, callback, initialValue) {
var previousValue = initialValue;
featureEach(layer, function (currentFeature, currentIndex) {
if (currentIndex === 0 && initialValue === undefined) {
previousValue = currentFeature;
} else {
previousValue = callback(previousValue, currentFeature, currentIndex);
}
});
return previousValue;
}
/**
* Get all coordinates from any GeoJSON object.
*
* @name coordAll
* @param {Object} layer any GeoJSON object
* @returns {Array<Array<number>>} coordinate position array
* @example
* var features = {
* "type": "FeatureCollection",
* "features": [
* {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [26, 37]
* }
* },
* {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [36, 53]
* }
* }
* ]
* };
* var coords = turf.coordAll(features);
* //=coords
*/
function coordAll(layer) {
var coords = [];
coordEach(layer, function (coord) {
coords.push(coord);
});
return coords;
}
/**
* Iterate over each geometry in any GeoJSON object, similar to Array.forEach()
*
* @name geomEach
* @param {Object} layer any GeoJSON object
* @param {Function} callback a method that takes (currentGeometry, currentIndex)
* @example
* var features = {
* "type": "FeatureCollection",
* "features": [
* {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [26, 37]
* }
* },
* {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [36, 53]
* }
* }
* ]
* };
* turf.geomEach(features, function (currentGeometry, currentIndex) {
* //=currentGeometry
* //=currentIndex
* });
*/
function geomEach(layer, callback) {
var i, j, g, geometry, stopG,
geometryMaybeCollection,
isGeometryCollection,
currentIndex = 0,
isFeatureCollection = layer.type === 'FeatureCollection',
isFeature = layer.type === 'Feature',
stop = isFeatureCollection ? layer.features.length : 1;
// This logic may look a little weird. The reason why it is that way
// is because it's trying to be fast. GeoJSON supports multiple kinds
// of objects at its root: FeatureCollection, Features, Geometries.
// This function has the responsibility of handling all of them, and that
// means that some of the `for` loops you see below actually just don't apply
// to certain inputs. For instance, if you give this just a
// Point geometry, then both loops are short-circuited and all we do
// is gradually rename the input until it's called 'geometry'.
//
// This also aims to allocate as few resources as possible: just a
// few numbers and booleans, rather than any temporary arrays as would
// be required with the normalization approach.
for (i = 0; i < stop; i++) {
geometryMaybeCollection = (isFeatureCollection ? layer.features[i].geometry :
(isFeature ? layer.geometry : layer));
isGeometryCollection = geometryMaybeCollection.type === 'GeometryCollection';
stopG = isGeometryCollection ? geometryMaybeCollection.geometries.length : 1;
for (g = 0; g < stopG; g++) {
geometry = isGeometryCollection ?
geometryMaybeCollection.geometries[g] : geometryMaybeCollection;
if (geometry.type === 'Point' ||
geometry.type === 'LineString' ||
geometry.type === 'MultiPoint' ||
geometry.type === 'Polygon' ||
geometry.type === 'MultiLineString' ||
geometry.type === 'MultiPolygon') {
callback(geometry, currentIndex);
currentIndex++;
} else if (geometry.type === 'GeometryCollection') {
for (j = 0; j < geometry.geometries.length; j++) {
callback(geometry.geometries[j], currentIndex);
currentIndex++;
}
} else {
throw new Error('Unknown Geometry Type');
}
}
}
}
/**
* Callback for geomReduce
*
* The first time the callback function is called, the values provided as arguments depend
* on whether the reduce method has an initialValue argument.
*
* If an initialValue is provided to the reduce method:
* - The previousValue argument is initialValue.
* - The currentValue argument is the value of the first element present in the array.
*
* If an initialValue is not provided:
* - The previousValue argument is the value of the first element present in the array.
* - The currentValue argument is the value of the second element present in the array.
*
* @private
* @callback geomReduceCallback
* @param {*} previousValue The accumulated value previously returned in the last invocation
* of the callback, or initialValue, if supplied.
* @param {*} currentGeometry The current Feature being processed.
* @param {number} currentIndex The index of the current element being processed in the
* array.Starts at index 0, if an initialValue is provided, and at index 1 otherwise.
*/
/**
* Reduce geometry in any GeoJSON object, similar to Array.reduce().
*
* @name geomReduce
* @param {Object} layer any GeoJSON object
* @param {Function} callback a method that takes (previousValue, currentGeometry, currentIndex)
* @param {*} [initialValue] Value to use as the first argument to the first call of the callback.
* @returns {*} The value that results from the reduction.
* @example
* var features = {
* "type": "FeatureCollection",
* "features": [
* {
* "type": "Feature",
* "properties": {"foo": "bar"},
* "geometry": {
* "type": "Point",
* "coordinates": [26, 37]
* }
* },
* {
* "type": "Feature",
* "properties": {"hello": "world"},
* "geometry": {
* "type": "Point",
* "coordinates": [36, 53]
* }
* }
* ]
* };
* turf.geomReduce(features, function (previousValue, currentGeometry, currentIndex) {
* //=previousValue
* //=currentGeometry
* //=currentIndex
* return currentGeometry
* });
*/
function geomReduce(layer, callback, initialValue) {
var previousValue = initialValue;
geomEach(layer, function (currentGeometry, currentIndex) {
if (currentIndex === 0 && initialValue === undefined) {
previousValue = currentGeometry;
} else {
previousValue = callback(previousValue, currentGeometry, currentIndex);
}
});
return previousValue;
}
module.exports = {
coordEach: coordEach,
coordReduce: coordReduce,
propEach: propEach,
propReduce: propReduce,
featureEach: featureEach,
featureReduce: featureReduce,
coordAll: coordAll,
geomEach: geomEach,
geomReduce: geomReduce
};
},{}],21:[function(require,module,exports){
'use strict';
var meta = require('@turf/meta');
var invariant = require('@turf/invariant');
var helpers = require('@turf/helpers');
/**
* https://github.com/rook2pawn/node-intersection
*
* Author @rook2pawn
*/
/**
* AB
*
* @private
* @param {Array<Array<number>>} segment - 2 vertex line segment
* @returns {Array<number>} coordinates [x, y]
*/
function ab(segment) {
var start = segment[0];
var end = segment[1];
return [end[0] - start[0], end[1] - start[1]];
}
/**
* Cross Product
*
* @private
* @param {Array<number>} v1 coordinates [x, y]
* @param {Array<number>} v2 coordinates [x, y]
* @returns {Array<number>} Cross Product
*/
function crossProduct(v1, v2) {
return (v1[0] * v2[1]) - (v2[0] * v1[1]);
}
/**
* Add
*
* @private
* @param {Array<number>} v1 coordinates [x, y]
* @param {Array<number>} v2 coordinates [x, y]
* @returns {Array<number>} Add
*/
function add(v1, v2) {
return [v1[0] + v2[0], v1[1] + v2[1]];
}
/**
* Sub
*
* @private
* @param {Array<number>} v1 coordinates [x, y]
* @param {Array<number>} v2 coordinates [x, y]
* @returns {Array<number>} Sub
*/
function sub(v1, v2) {
return [v1[0] - v2[0], v1[1] - v2[1]];
}
/**
* scalarMult
*
* @private
* @param {number} s scalar
* @param {Array<number>} v coordinates [x, y]
* @returns {Array<number>} scalarMult
*/
function scalarMult(s, v) {
return [s * v[0], s * v[1]];
}
/**
* Intersect Segments
*
* @private
* @param {Array<number>} a coordinates [x, y]
* @param {Array<number>} b coordinates [x, y]
* @returns {Array<number>} intersection
*/
function intersectSegments(a, b) {
var p = a[0];
var r = ab(a);
var q = b[0];
var s = ab(b);
var cross = crossProduct(r, s);
var qmp = sub(q, p);
var numerator = crossProduct(qmp, s);
var t = numerator / cross;
var intersection = add(p, scalarMult(t, r));
return intersection;
}
/**
* Is Parallel
*
* @private
* @param {Array<number>} a coordinates [x, y]
* @param {Array<number>} b coordinates [x, y]
* @returns {boolean} true if a and b are parallel (or co-linear)
*/
function isParallel(a, b) {
var r = ab(a);
var s = ab(b);
return (crossProduct(r, s) === 0);
}
/**
* Intersection
*
* @private
* @param {Array<number>} a coordinates [x, y]
* @param {Array<number>} b coordinates [x, y]
* @returns {Array<number>|boolean} true if a and b are parallel (or co-linear)
*/
function intersection(a, b) {
if (isParallel(a, b)) return false;
return intersectSegments(a, b);
}
/**
* Takes a {@link LineString|line} and returns a {@link LineString|line} at offset by the specified distance.
*
* @name lineOffset
* @param {Geometry|Feature<LineString|MultiLineString>} geojson input GeoJSON
* @param {number} distance distance to offset the line (can be of negative value)
* @param {Object} [options={}] Optional parameters
* @param {string} [options.units='kilometers'] can be degrees, radians, miles, kilometers, inches, yards, meters
* @returns {Feature<LineString|MultiLineString>} Line offset from the input line
* @example
* var line = turf.lineString([[-83, 30], [-84, 36], [-78, 41]], { "stroke": "#F00" });
*
* var offsetLine = turf.lineOffset(line, 2, {units: 'miles'});
*
* //addToMap
* var addToMap = [offsetLine, line]
* offsetLine.properties.stroke = "#00F"
*/
function lineOffset(geojson, distance, options) {
// Optional parameters
options = options || {};
if (!helpers.isObject(options)) throw new Error('options is invalid');
var units = options.units;
// Valdiation
if (!geojson) throw new Error('geojson is required');
if (distance === undefined || distance === null || isNaN(distance)) throw new Error('distance is required');
var type = invariant.getType(geojson);
var properties = geojson.properties;
switch (type) {
case 'LineString':
return lineOffsetFeature(geojson, distance, units);
case 'MultiLineString':
var coords = [];
meta.flattenEach(geojson, function (feature) {
coords.push(lineOffsetFeature(feature, distance, units).geometry.coordinates);
});
return helpers.multiLineString(coords, properties);
default:
throw new Error('geometry ' + type + ' is not supported');
}
}
/**
* Line Offset
*
* @private
* @param {Geometry|Feature<LineString>} line input line
* @param {number} distance distance to offset the line (can be of negative value)
* @param {string} [units=kilometers] units
* @returns {Feature<LineString>} Line offset from the input line
*/
function lineOffsetFeature(line, distance, units) {
var segments = [];
var offsetDegrees = helpers.lengthToDegrees(distance, units);
var coords = invariant.getCoords(line);
var finalCoords = [];
coords.forEach(function (currentCoords, index) {
if (index !== coords.length - 1) {
var segment = processSegment(currentCoords, coords[index + 1], offsetDegrees);
segments.push(segment);
if (index > 0) {
var seg2Coords = segments[index - 1];
var intersects = intersection(segment, seg2Coords);
// Handling for line segments that aren't straight
if (intersects !== false) {
seg2Coords[1] = intersects;
segment[0] = intersects;
}
finalCoords.push(seg2Coords[0]);
if (index === coords.length - 2) {
finalCoords.push(segment[0]);
finalCoords.push(segment[1]);
}
}
// Handling for lines that only have 1 segment
if (coords.length === 2) {
finalCoords.push(segment[0]);
finalCoords.push(segment[1]);
}
}
});
return helpers.lineString(finalCoords, line.properties);
}
/**
* Process Segment
* Inspiration taken from http://stackoverflow.com/questions/2825412/draw-a-parallel-line
*
* @private
* @param {Array<number>} point1 Point coordinates
* @param {Array<number>} point2 Point coordinates
* @param {number} offset Offset
* @returns {Array<Array<number>>} offset points
*/
function processSegment(point1, point2, offset) {
var L = Math.sqrt((point1[0] - point2[0]) * (point1[0] - point2[0]) + (point1[1] - point2[1]) * (point1[1] - point2[1]));
var out1x = point1[0] + offset * (point2[1] - point1[1]) / L;
var out2x = point2[0] + offset * (point2[1] - point1[1]) / L;
var out1y = point1[1] + offset * (point1[0] - point2[0]) / L;
var out2y = point2[1] + offset * (point1[0] - point2[0]) / L;
return [[out1x, out1y], [out2x, out2y]];
}
module.exports = lineOffset;
module.exports.default = lineOffset;
},{"@turf/helpers":14,"@turf/invariant":16,"@turf/meta":28}],22:[function(require,module,exports){
var flatten = require('@turf/flatten');
var featureEach = require('@turf/meta').featureEach;
var lineString = require('@turf/helpers').lineString;
var featureCollection = require('@turf/helpers').featureCollection;
var getCoords = require('@turf/invariant').getCoords;
/**
* Creates a {@link FeatureCollection} of 2-vertex {@link LineString} segments from a {@link LineString}, {@link MultiLineString}, {@link MultiPolygon} or {@link Polygon}.
*
* @name lineSegment
* @param {FeatureCollection|Feature<LineString|MultiLineString|MultiPolygon|Polygon>} geojson GeoJSON Polygon or LineString
* @returns {FeatureCollection<LineString>} 2-vertex line segments
* @example
* var polygon = {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Polygon",
* "coordinates": [[[-50, 5], [-40, -10], [-50, -10], [-40, 5], [-50, 5]]]
* }
* }
* var segments = turf.lineSegment(polygon);
* //=segments
*/
module.exports = function (geojson) {
var results = [];
var index = 0;
featureEach(geojson, function (multiFeature) {
featureEach(flatten(multiFeature), function (feature) {
var coords = [];
var type = (feature.geometry) ? feature.geometry.type : feature.type;
switch (type) {
case 'Polygon':
coords = getCoords(feature);
break;
case 'LineString':
coords = [getCoords(feature)];
}
coords.forEach(function (coord) {
var segments = createSegments(coord, feature.properties);
segments.forEach(function (segment) {
segment.id = index;
results.push(segment);
index++;
});
});
});
});
return featureCollection(results);
};
/**
* Create Segments from LineString coordinates
*
* @private
* @param {LineString} coords LineString coordinates
* @param {*} properties GeoJSON properties
* @returns {Array<Feature<LineString>>} line segments
*/
function createSegments(coords, properties) {
var segments = [];
coords.reduce(function (previousCoords, currentCoords) {
var segment = lineString([previousCoords, currentCoords], properties);
segment.bbox = bbox(previousCoords, currentCoords);
segments.push(segment);
return currentCoords;
});
return segments;
}
/**
* Create BBox between two coordinates (faster than @turf/bbox)
*
* @private
* @param {[number, number]} coords1 Point coordinate
* @param {[number, number]} coords2 Point coordinate
* @returns {BBox} [west, south, east, north]
*/
function bbox(coords1, coords2) {
var x1 = coords1[0];
var y1 = coords1[1];
var x2 = coords2[0];
var y2 = coords2[1];
var west = (x1 < x2) ? x1 : x2;
var south = (y1 < y2) ? y1 : y2;
var east = (x1 > x2) ? x1 : x2;
var north = (y1 > y2) ? y1 : y2;
return [west, south, east, north];
}
},{"@turf/flatten":23,"@turf/helpers":24,"@turf/invariant":25,"@turf/meta":26}],23:[function(require,module,exports){
var featureEach = require('@turf/meta').featureEach;
var geomEach = require('@turf/meta').geomEach;
var getCoords = require('@turf/invariant').getCoords;
var helpers = require('@turf/helpers');
var point = helpers.point;
var lineString = helpers.lineString;
var polygon = helpers.polygon;
var featureCollection = helpers.featureCollection;
/**
* Flattens any {@link GeoJSON} to a {@link FeatureCollection} inspired by [geojson-flatten](https://github.com/tmcw/geojson-flatten).
*
* @name flatten
* @param {Feature} geojson any valid {@link GeoJSON} with multi-geometry {@link Feature}s
* @returns {FeatureCollection} a flattened {@link FeatureCollection}
* @example
* var geometry = {
* "type": "MultiPolygon",
* "coordinates": [
* [[[102.0, 2.0], [103.0, 2.0], [103.0, 3.0], [102.0, 3.0], [102.0, 2.0]]],
* [[[100.0, 0.0], [101.0, 0.0], [101.0, 1.0], [100.0, 1.0], [100.0, 0.0]],
* [[100.2, 0.2], [100.8, 0.2], [100.8, 0.8], [100.2, 0.8], [100.2, 0.2]]]
* ]
* };
*
* var flattened = turf.flatten(geometry);
*
* //=flattened
*/
function flatten(geojson) {
var type = (geojson.geometry) ? geojson.geometry.type : geojson.type;
switch (type) {
case 'MultiPoint':
return flattenMultiPoint(geojson);
case 'MultiPolygon':
return flattenMultiPolygon(geojson);
case 'MultiLineString':
return flattenMultiLineString(geojson);
case 'FeatureCollection':
return flattenFeatureCollection(geojson);
case 'GeometryCollection':
return flattenGeometryCollection(geojson);
case 'Point':
case 'LineString':
case 'Polygon':
return featureCollection([geojson]);
}
}
module.exports = flatten;
/**
* Flatten MultiPoint
*
* @private
* @param {Feature<MultiPoint>} geojson GeoJSON Feature
* @returns {FeatureCollection<Point>} Feature Collection
*/
function flattenMultiPoint(geojson) {
var points = [];
getCoords(geojson).forEach(function (coords) {
points.push(point(coords, geojson.properties));
});
return featureCollection(points);
}
/**
* Flatten MultiLineString
*
* @private
* @param {Feature<MultiLineString>} geojson GeoJSON Feature
* @returns {FeatureCollection<LineString>} Feature Collection
*/
function flattenMultiLineString(geojson) {
var lines = [];
getCoords(geojson).forEach(function (coords) {
lines.push(lineString(coords, geojson.properties));
});
return featureCollection(lines);
}
/**
* Flatten MultiPolygon
*
* @private
* @param {Feature<MultiPolygon>} geojson GeoJSON Feature
* @returns {FeatureCollection<Polygon>} Feature Collection
*/
function flattenMultiPolygon(geojson) {
var polygons = [];
getCoords(geojson).forEach(function (coords) {
polygons.push(polygon(coords, geojson.properties));
});
return featureCollection(polygons);
}
/**
* Flatten FeatureCollection
*
* @private
* @param {FeatureCollection<any>} geojson GeoJSON Feature
* @returns {FeatureCollection<any>} Feature Collection
*/
function flattenFeatureCollection(geojson) {
var features = [];
featureEach(geojson, function (multiFeature) {
switch (multiFeature.geometry.type) {
case 'MultiPoint':
case 'MultiLineString':
case 'MultiPolygon':
featureEach(flatten(multiFeature), function (feature) {
features.push(feature);
});
break;
default:
features.push(multiFeature);
}
});
return featureCollection(features);
}
/**
* Flatten GeometryCollection
*
* @private
* @param {GeometryCollection<any>} geojson GeoJSON Geometry Collection
* @param {*} [properties] translate properties to Feature
* @returns {FeatureCollection<any>} Feature Collection
*/
function flattenGeometryCollection(geojson) {
var features = [];
geomEach(geojson, function (geometry) {
switch (geometry.type) {
case 'MultiPoint':
case 'MultiLineString':
case 'MultiPolygon':
featureEach(flatten(geometry), function (feature) {
features.push(feature);
});
break;
default:
var feature = {
type: 'Feature',
properties: {},
geometry: geometry
};
features.push(feature);
}
});
return featureCollection(features);
}
},{"@turf/helpers":24,"@turf/invariant":25,"@turf/meta":26}],24:[function(require,module,exports){
arguments[4][4][0].apply(exports,arguments)
},{"dup":4}],25:[function(require,module,exports){
arguments[4][5][0].apply(exports,arguments)
},{"dup":5}],26:[function(require,module,exports){
arguments[4][20][0].apply(exports,arguments)
},{"dup":20}],27:[function(require,module,exports){
var featureEach = require('@turf/meta').featureEach;
var rbush = require('rbush');
var turfBBox = require('@turf/bbox');
var helpers = require('@turf/helpers');
var union = require('@turf/union');
/**
* Takes any type of {@link Polygon|polygon} and an optional mask and returns a {@link Polygon|polygon} exterior ring with holes.
*
* @name mask
* @param {FeatureCollection|Feature<Polygon|MultiPolygon>} polygon GeoJSON Polygon used as interior rings or holes.
* @param {Feature<Polygon>} [mask] GeoJSON Polygon used as the exterior ring (if undefined, the world extent is used)
* @return {Feature<Polygon>} Masked Polygon (exterior ring with holes).
* @addToMap masked
* @example
* var polygon = {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Polygon",
* "coordinates": [[[112, -21], [116, -36], [146, -39], [153, -24], [133, -10], [112, -21]]]
* }
* }
* var mask = {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Polygon",
* "coordinates": [[[90, -55], [170, -55], [170, 10], [90, 10], [90, -55]]]
* }
* }
* var masked = turf.mask(polygon, mask);
* //=masked
*/
module.exports = function (polygon, mask) {
// Define mask
var maskPolygon = createMask(mask);
// Define polygon
var separated = separatePolygons(polygon);
var polygonOuters = separated[0];
var polygonInners = separated[1];
// Union Outers & Inners
polygonOuters = unionPolygons(polygonOuters);
polygonInners = unionPolygons(polygonInners);
// Create masked area
var masked = buildMask(maskPolygon, polygonOuters, polygonInners);
return masked;
};
/**
* Build Mask
*
* @private
* @param {Feature<Polygon>} maskPolygon Mask Outer
* @param {FeatureCollection<Polygon>} polygonOuters Polygon Outers
* @param {FeatureCollection<Polygon>} polygonInners Polygon Inners
* @returns {Feature<Polygon>} Feature Polygon
*/
function buildMask(maskPolygon, polygonOuters, polygonInners) {
var coordinates = [];
coordinates.push(maskPolygon.geometry.coordinates[0]);
featureEach(polygonOuters, function (feature) {
coordinates.push(feature.geometry.coordinates[0]);
});
featureEach(polygonInners, function (feature) {
coordinates.push(feature.geometry.coordinates[0]);
});
return helpers.polygon(coordinates);
}
/**
* Separate Polygons to inners & outers
*
* @private
* @param {FeatureCollection|Feature<Polygon|MultiPolygon>} polygon GeoJSON Feature
* @returns {Array<FeatureCollection<Polygon>, FeatureCollection<Polygon>>} Outer & Inner lines
*/
function separatePolygons(polygon) {
var outers = [];
var inners = [];
featureEach(polygon, function (multiFeature) {
if (multiFeature.geometry.type === 'MultiPolygon') {
multiFeature = flattenMultiPolygon(multiFeature);
}
featureEach(multiFeature, function (feature) {
var coordinates = feature.geometry.coordinates;
var featureOuter = coordinates[0];
var featureInner = coordinates.slice(1);
outers.push(helpers.polygon([featureOuter]));
featureInner.forEach(function (inner) {
inners.push(helpers.polygon([inner]));
});
});
});
return [helpers.featureCollection(outers), helpers.featureCollection(inners)];
}
/**
* Flatten MultiPolygon
*
* @private
* @param {Feature<MultiPolygon>} multiPolygon GeoJSON Feature
* @returns {FeatureCollection<Polygon>} Feature Collection
*/
function flattenMultiPolygon(multiPolygon) {
var polygons = [];
multiPolygon.geometry.coordinates.forEach(function (coordinates) {
polygons.push(helpers.polygon(coordinates));
});
return helpers.featureCollection(polygons);
}
/**
* Create Mask Coordinates
*
* @private
* @param {Feature<Polygon>} [mask] default to world if undefined
* @returns {Feature<Polygon>} mask coordinate
*/
function createMask(mask) {
var world = [[[180, 90], [-180, 90], [-180, -90], [180, -90], [180, 90]]];
var coordinates = mask && mask.geometry.coordinates || world;
return helpers.polygon(coordinates);
}
/**
* Union Polygons
*
* @private
* @param {FeatureCollection<Polygon>} polygons collection of polygons
* @returns {FeatureCollection<Polygon>} polygons only apply union if they collide
*/
function unionPolygons(polygons) {
if (polygons.features.length <= 1) return polygons;
var tree = createIndex(polygons);
var results = [];
var removed = {};
featureEach(polygons, function (currentFeature, currentIndex) {
// Exclude any removed features
if (removed[currentIndex]) return true;
// Don't search for itself
tree.remove({index: currentIndex}, filterByIndex);
removed[currentIndex] = true;
// Keep applying the union operation until no more overlapping features
while (true) {
var bbox = turfBBox(currentFeature);
var search = tree.search({
minX: bbox[0],
minY: bbox[1],
maxX: bbox[2],
maxY: bbox[3]
});
if (search.length > 0) {
var polys = search.map(function (item) {
removed[item.index] = true;
tree.remove({index: item.index}, filterByIndex);
return item.geojson;
});
polys.push(currentFeature);
currentFeature = union.apply(this, polys);
}
// Done
if (search.length === 0) break;
}
results.push(currentFeature);
});
return helpers.featureCollection(results);
}
/**
* Filter by Index - RBush helper function
*
* @private
* @param {Object} a remove item
* @param {Object} b search item
* @returns {boolean} true if matches
*/
function filterByIndex(a, b) {
return a.index === b.index;
}
/**
* Create RBush Tree Index
*
* @private
* @param {FeatureCollection<any>} features GeoJSON FeatureCollection
* @returns {RBush} RBush Tree
*/
function createIndex(features) {
var tree = rbush();
var load = [];
featureEach(features, function (feature, index) {
var bbox = turfBBox(feature);
load.push({
minX: bbox[0],
minY: bbox[1],
maxX: bbox[2],
maxY: bbox[3],
geojson: feature,
index: index
});
});
tree.load(load);
return tree;
}
},{"@turf/bbox":6,"@turf/helpers":14,"@turf/meta":28,"@turf/union":33,"rbush":47}],28:[function(require,module,exports){
'use strict';
Object.defineProperty(exports, '__esModule', { value: true });
var helpers = require('@turf/helpers');
/**
* Callback for coordEach
*
* @callback coordEachCallback
* @param {Array<number>} currentCoord The current coordinate being processed.
* @param {number} coordIndex The current index of the coordinate being processed.
* @param {number} featureIndex The current index of the Feature being processed.
* @param {number} multiFeatureIndex The current index of the Multi-Feature being processed.
* @param {number} geometryIndex The current index of the Geometry being processed.
*/
/**
* Iterate over coordinates in any GeoJSON object, similar to Array.forEach()
*
* @name coordEach
* @param {FeatureCollection|Feature|Geometry} geojson any GeoJSON object
* @param {Function} callback a method that takes (currentCoord, coordIndex, featureIndex, multiFeatureIndex)
* @param {boolean} [excludeWrapCoord=false] whether or not to include the final coordinate of LinearRings that wraps the ring in its iteration.
* @returns {void}
* @example
* var features = turf.featureCollection([
* turf.point([26, 37], {"foo": "bar"}),
* turf.point([36, 53], {"hello": "world"})
* ]);
*
* turf.coordEach(features, function (currentCoord, coordIndex, featureIndex, multiFeatureIndex, geometryIndex) {
* //=currentCoord
* //=coordIndex
* //=featureIndex
* //=multiFeatureIndex
* //=geometryIndex
* });
*/
function coordEach(geojson, callback, excludeWrapCoord) {
// Handles null Geometry -- Skips this GeoJSON
if (geojson === null) return;
var j, k, l, geometry, stopG, coords,
geometryMaybeCollection,
wrapShrink = 0,
coordIndex = 0,
isGeometryCollection,
type = geojson.type,
isFeatureCollection = type === 'FeatureCollection',
isFeature = type === 'Feature',
stop = isFeatureCollection ? geojson.features.length : 1;
// This logic may look a little weird. The reason why it is that way
// is because it's trying to be fast. GeoJSON supports multiple kinds
// of objects at its root: FeatureCollection, Features, Geometries.
// This function has the responsibility of handling all of them, and that
// means that some of the `for` loops you see below actually just don't apply
// to certain inputs. For instance, if you give this just a
// Point geometry, then both loops are short-circuited and all we do
// is gradually rename the input until it's called 'geometry'.
//
// This also aims to allocate as few resources as possible: just a
// few numbers and booleans, rather than any temporary arrays as would
// be required with the normalization approach.
for (var featureIndex = 0; featureIndex < stop; featureIndex++) {
geometryMaybeCollection = (isFeatureCollection ? geojson.features[featureIndex].geometry :
(isFeature ? geojson.geometry : geojson));
isGeometryCollection = (geometryMaybeCollection) ? geometryMaybeCollection.type === 'GeometryCollection' : false;
stopG = isGeometryCollection ? geometryMaybeCollection.geometries.length : 1;
for (var geomIndex = 0; geomIndex < stopG; geomIndex++) {
var multiFeatureIndex = 0;
var geometryIndex = 0;
geometry = isGeometryCollection ?
geometryMaybeCollection.geometries[geomIndex] : geometryMaybeCollection;
// Handles null Geometry -- Skips this geometry
if (geometry === null) continue;
coords = geometry.coordinates;
var geomType = geometry.type;
wrapShrink = (excludeWrapCoord && (geomType === 'Polygon' || geomType === 'MultiPolygon')) ? 1 : 0;
switch (geomType) {
case null:
break;
case 'Point':
if (callback(coords, coordIndex, featureIndex, multiFeatureIndex, geometryIndex) === false) return false;
coordIndex++;
multiFeatureIndex++;
break;
case 'LineString':
case 'MultiPoint':
for (j = 0; j < coords.length; j++) {
if (callback(coords[j], coordIndex, featureIndex, multiFeatureIndex, geometryIndex) === false) return false;
coordIndex++;
if (geomType === 'MultiPoint') multiFeatureIndex++;
}
if (geomType === 'LineString') multiFeatureIndex++;
break;
case 'Polygon':
case 'MultiLineString':
for (j = 0; j < coords.length; j++) {
for (k = 0; k < coords[j].length - wrapShrink; k++) {
if (callback(coords[j][k], coordIndex, featureIndex, multiFeatureIndex, geometryIndex) === false) return false;
coordIndex++;
}
if (geomType === 'MultiLineString') multiFeatureIndex++;
if (geomType === 'Polygon') geometryIndex++;
}
if (geomType === 'Polygon') multiFeatureIndex++;
break;
case 'MultiPolygon':
for (j = 0; j < coords.length; j++) {
if (geomType === 'MultiPolygon') geometryIndex = 0;
for (k = 0; k < coords[j].length; k++) {
for (l = 0; l < coords[j][k].length - wrapShrink; l++) {
if (callback(coords[j][k][l], coordIndex, featureIndex, multiFeatureIndex, geometryIndex) === false) return false;
coordIndex++;
}
geometryIndex++;
}
multiFeatureIndex++;
}
break;
case 'GeometryCollection':
for (j = 0; j < geometry.geometries.length; j++)
if (coordEach(geometry.geometries[j], callback, excludeWrapCoord) === false) return false;
break;
default:
throw new Error('Unknown Geometry Type');
}
}
}
}
/**
* Callback for coordReduce
*
* The first time the callback function is called, the values provided as arguments depend
* on whether the reduce method has an initialValue argument.
*
* If an initialValue is provided to the reduce method:
* - The previousValue argument is initialValue.
* - The currentValue argument is the value of the first element present in the array.
*
* If an initialValue is not provided:
* - The previousValue argument is the value of the first element present in the array.
* - The currentValue argument is the value of the second element present in the array.
*
* @callback coordReduceCallback
* @param {*} previousValue The accumulated value previously returned in the last invocation
* of the callback, or initialValue, if supplied.
* @param {Array<number>} currentCoord The current coordinate being processed.
* @param {number} coordIndex The current index of the coordinate being processed.
* Starts at index 0, if an initialValue is provided, and at index 1 otherwise.
* @param {number} featureIndex The current index of the Feature being processed.
* @param {number} multiFeatureIndex The current index of the Multi-Feature being processed.
* @param {number} geometryIndex The current index of the Geometry being processed.
*/
/**
* Reduce coordinates in any GeoJSON object, similar to Array.reduce()
*
* @name coordReduce
* @param {FeatureCollection|Geometry|Feature} geojson any GeoJSON object
* @param {Function} callback a method that takes (previousValue, currentCoord, coordIndex)
* @param {*} [initialValue] Value to use as the first argument to the first call of the callback.
* @param {boolean} [excludeWrapCoord=false] whether or not to include the final coordinate of LinearRings that wraps the ring in its iteration.
* @returns {*} The value that results from the reduction.
* @example
* var features = turf.featureCollection([
* turf.point([26, 37], {"foo": "bar"}),
* turf.point([36, 53], {"hello": "world"})
* ]);
*
* turf.coordReduce(features, function (previousValue, currentCoord, coordIndex, featureIndex, multiFeatureIndex, geometryIndex) {
* //=previousValue
* //=currentCoord
* //=coordIndex
* //=featureIndex
* //=multiFeatureIndex
* //=geometryIndex
* return currentCoord;
* });
*/
function coordReduce(geojson, callback, initialValue, excludeWrapCoord) {
var previousValue = initialValue;
coordEach(geojson, function (currentCoord, coordIndex, featureIndex, multiFeatureIndex, geometryIndex) {
if (coordIndex === 0 && initialValue === undefined) previousValue = currentCoord;
else previousValue = callback(previousValue, currentCoord, coordIndex, featureIndex, multiFeatureIndex, geometryIndex);
}, excludeWrapCoord);
return previousValue;
}
/**
* Callback for propEach
*
* @callback propEachCallback
* @param {Object} currentProperties The current Properties being processed.
* @param {number} featureIndex The current index of the Feature being processed.
*/
/**
* Iterate over properties in any GeoJSON object, similar to Array.forEach()
*
* @name propEach
* @param {FeatureCollection|Feature} geojson any GeoJSON object
* @param {Function} callback a method that takes (currentProperties, featureIndex)
* @returns {void}
* @example
* var features = turf.featureCollection([
* turf.point([26, 37], {foo: 'bar'}),
* turf.point([36, 53], {hello: 'world'})
* ]);
*
* turf.propEach(features, function (currentProperties, featureIndex) {
* //=currentProperties
* //=featureIndex
* });
*/
function propEach(geojson, callback) {
var i;
switch (geojson.type) {
case 'FeatureCollection':
for (i = 0; i < geojson.features.length; i++) {
if (callback(geojson.features[i].properties, i) === false) break;
}
break;
case 'Feature':
callback(geojson.properties, 0);
break;
}
}
/**
* Callback for propReduce
*
* The first time the callback function is called, the values provided as arguments depend
* on whether the reduce method has an initialValue argument.
*
* If an initialValue is provided to the reduce method:
* - The previousValue argument is initialValue.
* - The currentValue argument is the value of the first element present in the array.
*
* If an initialValue is not provided:
* - The previousValue argument is the value of the first element present in the array.
* - The currentValue argument is the value of the second element present in the array.
*
* @callback propReduceCallback
* @param {*} previousValue The accumulated value previously returned in the last invocation
* of the callback, or initialValue, if supplied.
* @param {*} currentProperties The current Properties being processed.
* @param {number} featureIndex The current index of the Feature being processed.
*/
/**
* Reduce properties in any GeoJSON object into a single value,
* similar to how Array.reduce works. However, in this case we lazily run
* the reduction, so an array of all properties is unnecessary.
*
* @name propReduce
* @param {FeatureCollection|Feature} geojson any GeoJSON object
* @param {Function} callback a method that takes (previousValue, currentProperties, featureIndex)
* @param {*} [initialValue] Value to use as the first argument to the first call of the callback.
* @returns {*} The value that results from the reduction.
* @example
* var features = turf.featureCollection([
* turf.point([26, 37], {foo: 'bar'}),
* turf.point([36, 53], {hello: 'world'})
* ]);
*
* turf.propReduce(features, function (previousValue, currentProperties, featureIndex) {
* //=previousValue
* //=currentProperties
* //=featureIndex
* return currentProperties
* });
*/
function propReduce(geojson, callback, initialValue) {
var previousValue = initialValue;
propEach(geojson, function (currentProperties, featureIndex) {
if (featureIndex === 0 && initialValue === undefined) previousValue = currentProperties;
else previousValue = callback(previousValue, currentProperties, featureIndex);
});
return previousValue;
}
/**
* Callback for featureEach
*
* @callback featureEachCallback
* @param {Feature<any>} currentFeature The current Feature being processed.
* @param {number} featureIndex The current index of the Feature being processed.
*/
/**
* Iterate over features in any GeoJSON object, similar to
* Array.forEach.
*
* @name featureEach
* @param {FeatureCollection|Feature|Geometry} geojson any GeoJSON object
* @param {Function} callback a method that takes (currentFeature, featureIndex)
* @returns {void}
* @example
* var features = turf.featureCollection([
* turf.point([26, 37], {foo: 'bar'}),
* turf.point([36, 53], {hello: 'world'})
* ]);
*
* turf.featureEach(features, function (currentFeature, featureIndex) {
* //=currentFeature
* //=featureIndex
* });
*/
function featureEach(geojson, callback) {
if (geojson.type === 'Feature') {
callback(geojson, 0);
} else if (geojson.type === 'FeatureCollection') {
for (var i = 0; i < geojson.features.length; i++) {
if (callback(geojson.features[i], i) === false) break;
}
}
}
/**
* Callback for featureReduce
*
* The first time the callback function is called, the values provided as arguments depend
* on whether the reduce method has an initialValue argument.
*
* If an initialValue is provided to the reduce method:
* - The previousValue argument is initialValue.
* - The currentValue argument is the value of the first element present in the array.
*
* If an initialValue is not provided:
* - The previousValue argument is the value of the first element present in the array.
* - The currentValue argument is the value of the second element present in the array.
*
* @callback featureReduceCallback
* @param {*} previousValue The accumulated value previously returned in the last invocation
* of the callback, or initialValue, if supplied.
* @param {Feature} currentFeature The current Feature being processed.
* @param {number} featureIndex The current index of the Feature being processed.
*/
/**
* Reduce features in any GeoJSON object, similar to Array.reduce().
*
* @name featureReduce
* @param {FeatureCollection|Feature|Geometry} geojson any GeoJSON object
* @param {Function} callback a method that takes (previousValue, currentFeature, featureIndex)
* @param {*} [initialValue] Value to use as the first argument to the first call of the callback.
* @returns {*} The value that results from the reduction.
* @example
* var features = turf.featureCollection([
* turf.point([26, 37], {"foo": "bar"}),
* turf.point([36, 53], {"hello": "world"})
* ]);
*
* turf.featureReduce(features, function (previousValue, currentFeature, featureIndex) {
* //=previousValue
* //=currentFeature
* //=featureIndex
* return currentFeature
* });
*/
function featureReduce(geojson, callback, initialValue) {
var previousValue = initialValue;
featureEach(geojson, function (currentFeature, featureIndex) {
if (featureIndex === 0 && initialValue === undefined) previousValue = currentFeature;
else previousValue = callback(previousValue, currentFeature, featureIndex);
});
return previousValue;
}
/**
* Get all coordinates from any GeoJSON object.
*
* @name coordAll
* @param {FeatureCollection|Feature|Geometry} geojson any GeoJSON object
* @returns {Array<Array<number>>} coordinate position array
* @example
* var features = turf.featureCollection([
* turf.point([26, 37], {foo: 'bar'}),
* turf.point([36, 53], {hello: 'world'})
* ]);
*
* var coords = turf.coordAll(features);
* //= [[26, 37], [36, 53]]
*/
function coordAll(geojson) {
var coords = [];
coordEach(geojson, function (coord) {
coords.push(coord);
});
return coords;
}
/**
* Callback for geomEach
*
* @callback geomEachCallback
* @param {Geometry} currentGeometry The current Geometry being processed.
* @param {number} featureIndex The current index of the Feature being processed.
* @param {Object} featureProperties The current Feature Properties being processed.
* @param {Array<number>} featureBBox The current Feature BBox being processed.
* @param {number|string} featureId The current Feature Id being processed.
*/
/**
* Iterate over each geometry in any GeoJSON object, similar to Array.forEach()
*
* @name geomEach
* @param {FeatureCollection|Feature|Geometry} geojson any GeoJSON object
* @param {Function} callback a method that takes (currentGeometry, featureIndex, featureProperties, featureBBox, featureId)
* @returns {void}
* @example
* var features = turf.featureCollection([
* turf.point([26, 37], {foo: 'bar'}),
* turf.point([36, 53], {hello: 'world'})
* ]);
*
* turf.geomEach(features, function (currentGeometry, featureIndex, featureProperties, featureBBox, featureId) {
* //=currentGeometry
* //=featureIndex
* //=featureProperties
* //=featureBBox
* //=featureId
* });
*/
function geomEach(geojson, callback) {
var i, j, g, geometry, stopG,
geometryMaybeCollection,
isGeometryCollection,
featureProperties,
featureBBox,
featureId,
featureIndex = 0,
isFeatureCollection = geojson.type === 'FeatureCollection',
isFeature = geojson.type === 'Feature',
stop = isFeatureCollection ? geojson.features.length : 1;
// This logic may look a little weird. The reason why it is that way
// is because it's trying to be fast. GeoJSON supports multiple kinds
// of objects at its root: FeatureCollection, Features, Geometries.
// This function has the responsibility of handling all of them, and that
// means that some of the `for` loops you see below actually just don't apply
// to certain inputs. For instance, if you give this just a
// Point geometry, then both loops are short-circuited and all we do
// is gradually rename the input until it's called 'geometry'.
//
// This also aims to allocate as few resources as possible: just a
// few numbers and booleans, rather than any temporary arrays as would
// be required with the normalization approach.
for (i = 0; i < stop; i++) {
geometryMaybeCollection = (isFeatureCollection ? geojson.features[i].geometry :
(isFeature ? geojson.geometry : geojson));
featureProperties = (isFeatureCollection ? geojson.features[i].properties :
(isFeature ? geojson.properties : {}));
featureBBox = (isFeatureCollection ? geojson.features[i].bbox :
(isFeature ? geojson.bbox : undefined));
featureId = (isFeatureCollection ? geojson.features[i].id :
(isFeature ? geojson.id : undefined));
isGeometryCollection = (geometryMaybeCollection) ? geometryMaybeCollection.type === 'GeometryCollection' : false;
stopG = isGeometryCollection ? geometryMaybeCollection.geometries.length : 1;
for (g = 0; g < stopG; g++) {
geometry = isGeometryCollection ?
geometryMaybeCollection.geometries[g] : geometryMaybeCollection;
// Handle null Geometry
if (geometry === null) {
if (callback(null, featureIndex, featureProperties, featureBBox, featureId) === false) return false;
continue;
}
switch (geometry.type) {
case 'Point':
case 'LineString':
case 'MultiPoint':
case 'Polygon':
case 'MultiLineString':
case 'MultiPolygon': {
if (callback(geometry, featureIndex, featureProperties, featureBBox, featureId) === false) return false;
break;
}
case 'GeometryCollection': {
for (j = 0; j < geometry.geometries.length; j++) {
if (callback(geometry.geometries[j], featureIndex, featureProperties, featureBBox, featureId) === false) return false;
}
break;
}
default:
throw new Error('Unknown Geometry Type');
}
}
// Only increase `featureIndex` per each feature
featureIndex++;
}
}
/**
* Callback for geomReduce
*
* The first time the callback function is called, the values provided as arguments depend
* on whether the reduce method has an initialValue argument.
*
* If an initialValue is provided to the reduce method:
* - The previousValue argument is initialValue.
* - The currentValue argument is the value of the first element present in the array.
*
* If an initialValue is not provided:
* - The previousValue argument is the value of the first element present in the array.
* - The currentValue argument is the value of the second element present in the array.
*
* @callback geomReduceCallback
* @param {*} previousValue The accumulated value previously returned in the last invocation
* of the callback, or initialValue, if supplied.
* @param {Geometry} currentGeometry The current Geometry being processed.
* @param {number} featureIndex The current index of the Feature being processed.
* @param {Object} featureProperties The current Feature Properties being processed.
* @param {Array<number>} featureBBox The current Feature BBox being processed.
* @param {number|string} featureId The current Feature Id being processed.
*/
/**
* Reduce geometry in any GeoJSON object, similar to Array.reduce().
*
* @name geomReduce
* @param {FeatureCollection|Feature|Geometry} geojson any GeoJSON object
* @param {Function} callback a method that takes (previousValue, currentGeometry, featureIndex, featureProperties, featureBBox, featureId)
* @param {*} [initialValue] Value to use as the first argument to the first call of the callback.
* @returns {*} The value that results from the reduction.
* @example
* var features = turf.featureCollection([
* turf.point([26, 37], {foo: 'bar'}),
* turf.point([36, 53], {hello: 'world'})
* ]);
*
* turf.geomReduce(features, function (previousValue, currentGeometry, featureIndex, featureProperties, featureBBox, featureId) {
* //=previousValue
* //=currentGeometry
* //=featureIndex
* //=featureProperties
* //=featureBBox
* //=featureId
* return currentGeometry
* });
*/
function geomReduce(geojson, callback, initialValue) {
var previousValue = initialValue;
geomEach(geojson, function (currentGeometry, featureIndex, featureProperties, featureBBox, featureId) {
if (featureIndex === 0 && initialValue === undefined) previousValue = currentGeometry;
else previousValue = callback(previousValue, currentGeometry, featureIndex, featureProperties, featureBBox, featureId);
});
return previousValue;
}
/**
* Callback for flattenEach
*
* @callback flattenEachCallback
* @param {Feature} currentFeature The current flattened feature being processed.
* @param {number} featureIndex The current index of the Feature being processed.
* @param {number} multiFeatureIndex The current index of the Multi-Feature being processed.
*/
/**
* Iterate over flattened features in any GeoJSON object, similar to
* Array.forEach.
*
* @name flattenEach
* @param {FeatureCollection|Feature|Geometry} geojson any GeoJSON object
* @param {Function} callback a method that takes (currentFeature, featureIndex, multiFeatureIndex)
* @example
* var features = turf.featureCollection([
* turf.point([26, 37], {foo: 'bar'}),
* turf.multiPoint([[40, 30], [36, 53]], {hello: 'world'})
* ]);
*
* turf.flattenEach(features, function (currentFeature, featureIndex, multiFeatureIndex) {
* //=currentFeature
* //=featureIndex
* //=multiFeatureIndex
* });
*/
function flattenEach(geojson, callback) {
geomEach(geojson, function (geometry, featureIndex, properties, bbox, id) {
// Callback for single geometry
var type = (geometry === null) ? null : geometry.type;
switch (type) {
case null:
case 'Point':
case 'LineString':
case 'Polygon':
if (callback(helpers.feature(geometry, properties, {bbox: bbox, id: id}), featureIndex, 0) === false) return false;
return;
}
var geomType;
// Callback for multi-geometry
switch (type) {
case 'MultiPoint':
geomType = 'Point';
break;
case 'MultiLineString':
geomType = 'LineString';
break;
case 'MultiPolygon':
geomType = 'Polygon';
break;
}
for (var multiFeatureIndex = 0; multiFeatureIndex < geometry.coordinates.length; multiFeatureIndex++) {
var coordinate = geometry.coordinates[multiFeatureIndex];
var geom = {
type: geomType,
coordinates: coordinate
};
if (callback(helpers.feature(geom, properties), featureIndex, multiFeatureIndex) === false) return false;
}
});
}
/**
* Callback for flattenReduce
*
* The first time the callback function is called, the values provided as arguments depend
* on whether the reduce method has an initialValue argument.
*
* If an initialValue is provided to the reduce method:
* - The previousValue argument is initialValue.
* - The currentValue argument is the value of the first element present in the array.
*
* If an initialValue is not provided:
* - The previousValue argument is the value of the first element present in the array.
* - The currentValue argument is the value of the second element present in the array.
*
* @callback flattenReduceCallback
* @param {*} previousValue The accumulated value previously returned in the last invocation
* of the callback, or initialValue, if supplied.
* @param {Feature} currentFeature The current Feature being processed.
* @param {number} featureIndex The current index of the Feature being processed.
* @param {number} multiFeatureIndex The current index of the Multi-Feature being processed.
*/
/**
* Reduce flattened features in any GeoJSON object, similar to Array.reduce().
*
* @name flattenReduce
* @param {FeatureCollection|Feature|Geometry} geojson any GeoJSON object
* @param {Function} callback a method that takes (previousValue, currentFeature, featureIndex, multiFeatureIndex)
* @param {*} [initialValue] Value to use as the first argument to the first call of the callback.
* @returns {*} The value that results from the reduction.
* @example
* var features = turf.featureCollection([
* turf.point([26, 37], {foo: 'bar'}),
* turf.multiPoint([[40, 30], [36, 53]], {hello: 'world'})
* ]);
*
* turf.flattenReduce(features, function (previousValue, currentFeature, featureIndex, multiFeatureIndex) {
* //=previousValue
* //=currentFeature
* //=featureIndex
* //=multiFeatureIndex
* return currentFeature
* });
*/
function flattenReduce(geojson, callback, initialValue) {
var previousValue = initialValue;
flattenEach(geojson, function (currentFeature, featureIndex, multiFeatureIndex) {
if (featureIndex === 0 && multiFeatureIndex === 0 && initialValue === undefined) previousValue = currentFeature;
else previousValue = callback(previousValue, currentFeature, featureIndex, multiFeatureIndex);
});
return previousValue;
}
/**
* Callback for segmentEach
*
* @callback segmentEachCallback
* @param {Feature<LineString>} currentSegment The current Segment being processed.
* @param {number} featureIndex The current index of the Feature being processed.
* @param {number} multiFeatureIndex The current index of the Multi-Feature being processed.
* @param {number} geometryIndex The current index of the Geometry being processed.
* @param {number} segmentIndex The current index of the Segment being processed.
* @returns {void}
*/
/**
* Iterate over 2-vertex line segment in any GeoJSON object, similar to Array.forEach()
* (Multi)Point geometries do not contain segments therefore they are ignored during this operation.
*
* @param {FeatureCollection|Feature|Geometry} geojson any GeoJSON
* @param {Function} callback a method that takes (currentSegment, featureIndex, multiFeatureIndex, geometryIndex, segmentIndex)
* @returns {void}
* @example
* var polygon = turf.polygon([[[-50, 5], [-40, -10], [-50, -10], [-40, 5], [-50, 5]]]);
*
* // Iterate over GeoJSON by 2-vertex segments
* turf.segmentEach(polygon, function (currentSegment, featureIndex, multiFeatureIndex, geometryIndex, segmentIndex) {
* //=currentSegment
* //=featureIndex
* //=multiFeatureIndex
* //=geometryIndex
* //=segmentIndex
* });
*
* // Calculate the total number of segments
* var total = 0;
* turf.segmentEach(polygon, function () {
* total++;
* });
*/
function segmentEach(geojson, callback) {
flattenEach(geojson, function (feature$$1, featureIndex, multiFeatureIndex) {
var segmentIndex = 0;
// Exclude null Geometries
if (!feature$$1.geometry) return;
// (Multi)Point geometries do not contain segments therefore they are ignored during this operation.
var type = feature$$1.geometry.type;
if (type === 'Point' || type === 'MultiPoint') return;
// Generate 2-vertex line segments
var previousCoords;
if (coordEach(feature$$1, function (currentCoord, coordIndex, featureIndexCoord, mutliPartIndexCoord, geometryIndex) {
// Simulating a meta.coordReduce() since `reduce` operations cannot be stopped by returning `false`
if (previousCoords === undefined) {
previousCoords = currentCoord;
return;
}
var currentSegment = helpers.lineString([previousCoords, currentCoord], feature$$1.properties);
if (callback(currentSegment, featureIndex, multiFeatureIndex, geometryIndex, segmentIndex) === false) return false;
segmentIndex++;
previousCoords = currentCoord;
}) === false) return false;
});
}
/**
* Callback for segmentReduce
*
* The first time the callback function is called, the values provided as arguments depend
* on whether the reduce method has an initialValue argument.
*
* If an initialValue is provided to the reduce method:
* - The previousValue argument is initialValue.
* - The currentValue argument is the value of the first element present in the array.
*
* If an initialValue is not provided:
* - The previousValue argument is the value of the first element present in the array.
* - The currentValue argument is the value of the second element present in the array.
*
* @callback segmentReduceCallback
* @param {*} previousValue The accumulated value previously returned in the last invocation
* of the callback, or initialValue, if supplied.
* @param {Feature<LineString>} currentSegment The current Segment being processed.
* @param {number} featureIndex The current index of the Feature being processed.
* @param {number} multiFeatureIndex The current index of the Multi-Feature being processed.
* @param {number} geometryIndex The current index of the Geometry being processed.
* @param {number} segmentIndex The current index of the Segment being processed.
*/
/**
* Reduce 2-vertex line segment in any GeoJSON object, similar to Array.reduce()
* (Multi)Point geometries do not contain segments therefore they are ignored during this operation.
*
* @param {FeatureCollection|Feature|Geometry} geojson any GeoJSON
* @param {Function} callback a method that takes (previousValue, currentSegment, currentIndex)
* @param {*} [initialValue] Value to use as the first argument to the first call of the callback.
* @returns {void}
* @example
* var polygon = turf.polygon([[[-50, 5], [-40, -10], [-50, -10], [-40, 5], [-50, 5]]]);
*
* // Iterate over GeoJSON by 2-vertex segments
* turf.segmentReduce(polygon, function (previousSegment, currentSegment, featureIndex, multiFeatureIndex, geometryIndex, segmentIndex) {
* //= previousSegment
* //= currentSegment
* //= featureIndex
* //= multiFeatureIndex
* //= geometryIndex
* //= segmentInex
* return currentSegment
* });
*
* // Calculate the total number of segments
* var initialValue = 0
* var total = turf.segmentReduce(polygon, function (previousValue) {
* previousValue++;
* return previousValue;
* }, initialValue);
*/
function segmentReduce(geojson, callback, initialValue) {
var previousValue = initialValue;
var started = false;
segmentEach(geojson, function (currentSegment, featureIndex, multiFeatureIndex, geometryIndex, segmentIndex) {
if (started === false && initialValue === undefined) previousValue = currentSegment;
else previousValue = callback(previousValue, currentSegment, featureIndex, multiFeatureIndex, geometryIndex, segmentIndex);
started = true;
});
return previousValue;
}
/**
* Callback for lineEach
*
* @callback lineEachCallback
* @param {Feature<LineString>} currentLine The current LineString|LinearRing being processed
* @param {number} featureIndex The current index of the Feature being processed
* @param {number} multiFeatureIndex The current index of the Multi-Feature being processed
* @param {number} geometryIndex The current index of the Geometry being processed
*/
/**
* Iterate over line or ring coordinates in LineString, Polygon, MultiLineString, MultiPolygon Features or Geometries,
* similar to Array.forEach.
*
* @name lineEach
* @param {Geometry|Feature<LineString|Polygon|MultiLineString|MultiPolygon>} geojson object
* @param {Function} callback a method that takes (currentLine, featureIndex, multiFeatureIndex, geometryIndex)
* @example
* var multiLine = turf.multiLineString([
* [[26, 37], [35, 45]],
* [[36, 53], [38, 50], [41, 55]]
* ]);
*
* turf.lineEach(multiLine, function (currentLine, featureIndex, multiFeatureIndex, geometryIndex) {
* //=currentLine
* //=featureIndex
* //=multiFeatureIndex
* //=geometryIndex
* });
*/
function lineEach(geojson, callback) {
// validation
if (!geojson) throw new Error('geojson is required');
flattenEach(geojson, function (feature$$1, featureIndex, multiFeatureIndex) {
if (feature$$1.geometry === null) return;
var type = feature$$1.geometry.type;
var coords = feature$$1.geometry.coordinates;
switch (type) {
case 'LineString':
if (callback(feature$$1, featureIndex, multiFeatureIndex, 0, 0) === false) return false;
break;
case 'Polygon':
for (var geometryIndex = 0; geometryIndex < coords.length; geometryIndex++) {
if (callback(helpers.lineString(coords[geometryIndex], feature$$1.properties), featureIndex, multiFeatureIndex, geometryIndex) === false) return false;
}
break;
}
});
}
/**
* Callback for lineReduce
*
* The first time the callback function is called, the values provided as arguments depend
* on whether the reduce method has an initialValue argument.
*
* If an initialValue is provided to the reduce method:
* - The previousValue argument is initialValue.
* - The currentValue argument is the value of the first element present in the array.
*
* If an initialValue is not provided:
* - The previousValue argument is the value of the first element present in the array.
* - The currentValue argument is the value of the second element present in the array.
*
* @callback lineReduceCallback
* @param {*} previousValue The accumulated value previously returned in the last invocation
* of the callback, or initialValue, if supplied.
* @param {Feature<LineString>} currentLine The current LineString|LinearRing being processed.
* @param {number} featureIndex The current index of the Feature being processed
* @param {number} multiFeatureIndex The current index of the Multi-Feature being processed
* @param {number} geometryIndex The current index of the Geometry being processed
*/
/**
* Reduce features in any GeoJSON object, similar to Array.reduce().
*
* @name lineReduce
* @param {Geometry|Feature<LineString|Polygon|MultiLineString|MultiPolygon>} geojson object
* @param {Function} callback a method that takes (previousValue, currentLine, featureIndex, multiFeatureIndex, geometryIndex)
* @param {*} [initialValue] Value to use as the first argument to the first call of the callback.
* @returns {*} The value that results from the reduction.
* @example
* var multiPoly = turf.multiPolygon([
* turf.polygon([[[12,48],[2,41],[24,38],[12,48]], [[9,44],[13,41],[13,45],[9,44]]]),
* turf.polygon([[[5, 5], [0, 0], [2, 2], [4, 4], [5, 5]]])
* ]);
*
* turf.lineReduce(multiPoly, function (previousValue, currentLine, featureIndex, multiFeatureIndex, geometryIndex) {
* //=previousValue
* //=currentLine
* //=featureIndex
* //=multiFeatureIndex
* //=geometryIndex
* return currentLine
* });
*/
function lineReduce(geojson, callback, initialValue) {
var previousValue = initialValue;
lineEach(geojson, function (currentLine, featureIndex, multiFeatureIndex, geometryIndex) {
if (featureIndex === 0 && initialValue === undefined) previousValue = currentLine;
else previousValue = callback(previousValue, currentLine, featureIndex, multiFeatureIndex, geometryIndex);
});
return previousValue;
}
/**
* Finds a particular 2-vertex LineString Segment from a GeoJSON using `@turf/meta` indexes.
*
* Negative indexes are permitted.
* Point & MultiPoint will always return null.
*
* @param {FeatureCollection|Feature|Geometry} geojson Any GeoJSON Feature or Geometry
* @param {Object} [options={}] Optional parameters
* @param {number} [options.featureIndex=0] Feature Index
* @param {number} [options.multiFeatureIndex=0] Multi-Feature Index
* @param {number} [options.geometryIndex=0] Geometry Index
* @param {number} [options.segmentIndex=0] Segment Index
* @param {Object} [options.properties={}] Translate Properties to output LineString
* @param {BBox} [options.bbox={}] Translate BBox to output LineString
* @param {number|string} [options.id={}] Translate Id to output LineString
* @returns {Feature<LineString>} 2-vertex GeoJSON Feature LineString
* @example
* var multiLine = turf.multiLineString([
* [[10, 10], [50, 30], [30, 40]],
* [[-10, -10], [-50, -30], [-30, -40]]
* ]);
*
* // First Segment (defaults are 0)
* turf.findSegment(multiLine);
* // => Feature<LineString<[[10, 10], [50, 30]]>>
*
* // First Segment of 2nd Multi Feature
* turf.findSegment(multiLine, {multiFeatureIndex: 1});
* // => Feature<LineString<[[-10, -10], [-50, -30]]>>
*
* // Last Segment of Last Multi Feature
* turf.findSegment(multiLine, {multiFeatureIndex: -1, segmentIndex: -1});
* // => Feature<LineString<[[-50, -30], [-30, -40]]>>
*/
function findSegment(geojson, options) {
// Optional Parameters
options = options || {};
if (!helpers.isObject(options)) throw new Error('options is invalid');
var featureIndex = options.featureIndex || 0;
var multiFeatureIndex = options.multiFeatureIndex || 0;
var geometryIndex = options.geometryIndex || 0;
var segmentIndex = options.segmentIndex || 0;
// Find FeatureIndex
var properties = options.properties;
var geometry;
switch (geojson.type) {
case 'FeatureCollection':
if (featureIndex < 0) featureIndex = geojson.features.length + featureIndex;
properties = properties || geojson.features[featureIndex].properties;
geometry = geojson.features[featureIndex].geometry;
break;
case 'Feature':
properties = properties || geojson.properties;
geometry = geojson.geometry;
break;
case 'Point':
case 'MultiPoint':
return null;
case 'LineString':
case 'Polygon':
case 'MultiLineString':
case 'MultiPolygon':
geometry = geojson;
break;
default:
throw new Error('geojson is invalid');
}
// Find SegmentIndex
if (geometry === null) return null;
var coords = geometry.coordinates;
switch (geometry.type) {
case 'Point':
case 'MultiPoint':
return null;
case 'LineString':
if (segmentIndex < 0) segmentIndex = coords.length + segmentIndex - 1;
return helpers.lineString([coords[segmentIndex], coords[segmentIndex + 1]], properties, options);
case 'Polygon':
if (geometryIndex < 0) geometryIndex = coords.length + geometryIndex;
if (segmentIndex < 0) segmentIndex = coords[geometryIndex].length + segmentIndex - 1;
return helpers.lineString([coords[geometryIndex][segmentIndex], coords[geometryIndex][segmentIndex + 1]], properties, options);
case 'MultiLineString':
if (multiFeatureIndex < 0) multiFeatureIndex = coords.length + multiFeatureIndex;
if (segmentIndex < 0) segmentIndex = coords[multiFeatureIndex].length + segmentIndex - 1;
return helpers.lineString([coords[multiFeatureIndex][segmentIndex], coords[multiFeatureIndex][segmentIndex + 1]], properties, options);
case 'MultiPolygon':
if (multiFeatureIndex < 0) multiFeatureIndex = coords.length + multiFeatureIndex;
if (geometryIndex < 0) geometryIndex = coords[multiFeatureIndex].length + geometryIndex;
if (segmentIndex < 0) segmentIndex = coords[multiFeatureIndex][geometryIndex].length - segmentIndex - 1;
return helpers.lineString([coords[multiFeatureIndex][geometryIndex][segmentIndex], coords[multiFeatureIndex][geometryIndex][segmentIndex + 1]], properties, options);
}
throw new Error('geojson is invalid');
}
/**
* Finds a particular Point from a GeoJSON using `@turf/meta` indexes.
*
* Negative indexes are permitted.
*
* @param {FeatureCollection|Feature|Geometry} geojson Any GeoJSON Feature or Geometry
* @param {Object} [options={}] Optional parameters
* @param {number} [options.featureIndex=0] Feature Index
* @param {number} [options.multiFeatureIndex=0] Multi-Feature Index
* @param {number} [options.geometryIndex=0] Geometry Index
* @param {number} [options.coordIndex=0] Coord Index
* @param {Object} [options.properties={}] Translate Properties to output Point
* @param {BBox} [options.bbox={}] Translate BBox to output Point
* @param {number|string} [options.id={}] Translate Id to output Point
* @returns {Feature<Point>} 2-vertex GeoJSON Feature Point
* @example
* var multiLine = turf.multiLineString([
* [[10, 10], [50, 30], [30, 40]],
* [[-10, -10], [-50, -30], [-30, -40]]
* ]);
*
* // First Segment (defaults are 0)
* turf.findPoint(multiLine);
* // => Feature<Point<[10, 10]>>
*
* // First Segment of the 2nd Multi-Feature
* turf.findPoint(multiLine, {multiFeatureIndex: 1});
* // => Feature<Point<[-10, -10]>>
*
* // Last Segment of last Multi-Feature
* turf.findPoint(multiLine, {multiFeatureIndex: -1, coordIndex: -1});
* // => Feature<Point<[-30, -40]>>
*/
function findPoint(geojson, options) {
// Optional Parameters
options = options || {};
if (!helpers.isObject(options)) throw new Error('options is invalid');
var featureIndex = options.featureIndex || 0;
var multiFeatureIndex = options.multiFeatureIndex || 0;
var geometryIndex = options.geometryIndex || 0;
var coordIndex = options.coordIndex || 0;
// Find FeatureIndex
var properties = options.properties;
var geometry;
switch (geojson.type) {
case 'FeatureCollection':
if (featureIndex < 0) featureIndex = geojson.features.length + featureIndex;
properties = properties || geojson.features[featureIndex].properties;
geometry = geojson.features[featureIndex].geometry;
break;
case 'Feature':
properties = properties || geojson.properties;
geometry = geojson.geometry;
break;
case 'Point':
case 'MultiPoint':
return null;
case 'LineString':
case 'Polygon':
case 'MultiLineString':
case 'MultiPolygon':
geometry = geojson;
break;
default:
throw new Error('geojson is invalid');
}
// Find Coord Index
if (geometry === null) return null;
var coords = geometry.coordinates;
switch (geometry.type) {
case 'Point':
return helpers.point(coords, properties, options);
case 'MultiPoint':
if (multiFeatureIndex < 0) multiFeatureIndex = coords.length + multiFeatureIndex;
return helpers.point(coords[multiFeatureIndex], properties, options);
case 'LineString':
if (coordIndex < 0) coordIndex = coords.length + coordIndex;
return helpers.point(coords[coordIndex], properties, options);
case 'Polygon':
if (geometryIndex < 0) geometryIndex = coords.length + geometryIndex;
if (coordIndex < 0) coordIndex = coords[geometryIndex].length + coordIndex;
return helpers.point(coords[geometryIndex][coordIndex], properties, options);
case 'MultiLineString':
if (multiFeatureIndex < 0) multiFeatureIndex = coords.length + multiFeatureIndex;
if (coordIndex < 0) coordIndex = coords[multiFeatureIndex].length + coordIndex;
return helpers.point(coords[multiFeatureIndex][coordIndex], properties, options);
case 'MultiPolygon':
if (multiFeatureIndex < 0) multiFeatureIndex = coords.length + multiFeatureIndex;
if (geometryIndex < 0) geometryIndex = coords[multiFeatureIndex].length + geometryIndex;
if (coordIndex < 0) coordIndex = coords[multiFeatureIndex][geometryIndex].length - coordIndex;
return helpers.point(coords[multiFeatureIndex][geometryIndex][coordIndex], properties, options);
}
throw new Error('geojson is invalid');
}
exports.coordEach = coordEach;
exports.coordReduce = coordReduce;
exports.propEach = propEach;
exports.propReduce = propReduce;
exports.featureEach = featureEach;
exports.featureReduce = featureReduce;
exports.coordAll = coordAll;
exports.geomEach = geomEach;
exports.geomReduce = geomReduce;
exports.flattenEach = flattenEach;
exports.flattenReduce = flattenReduce;
exports.segmentEach = segmentEach;
exports.segmentReduce = segmentReduce;
exports.lineEach = lineEach;
exports.lineReduce = lineReduce;
exports.findSegment = findSegment;
exports.findPoint = findPoint;
},{"@turf/helpers":14}],29:[function(require,module,exports){
var getCoords = require('@turf/invariant').getCoords;
var helpers = require('@turf/helpers');
var lineString = helpers.lineString;
var multiLineString = helpers.multiLineString;
var featureCollection = helpers.featureCollection;
/**
* Converts a {@link Polygon} or {@link MultiPolygon} to a {@link FeatureCollection} of {@link LineString} or {@link MultiLineString}.
*
* @name polygonToLineString
* @param {Feature<Polygon|MultiPolygon>} polygon Feature to convert
* @returns {FeatureCollection<LineString|MultiLinestring>} converted Feature to Lines
* @example
* var poly = {
* 'type': 'Feature',
* 'properties': {},
* 'geometry': {
* 'type': 'Polygon',
* 'coordinates': [[[125, -30], [145, -30], [145, -20], [125, -20], [125, -30]]]
* }
* }
* var lines = turf.polygonToLineString(poly);
* //addToMap
* var addToMap = [lines]
*/
module.exports = function (polygon) {
var geom = getGeomType(polygon);
var coords = getCoords(polygon);
var properties = polygon.properties;
if (!coords.length) throw new Error('polygon must contain coordinates');
switch (geom) {
case 'Polygon':
return featureCollection([coordsToLine(coords, properties)]);
case 'MultiPolygon':
var lines = [];
coords.forEach(function (coord) {
lines.push(coordsToLine(coord, properties));
});
return featureCollection(lines);
default:
throw new Error('geom ' + geom + ' not supported');
}
};
function coordsToLine(coords, properties) {
if (coords.length > 1) return multiLineString(coords, properties);
return lineString(coords[0], properties);
}
function getGeomType(feature) {
return (feature.geometry) ? feature.geometry.type : feature.type;
}
},{"@turf/helpers":30,"@turf/invariant":31}],30:[function(require,module,exports){
arguments[4][4][0].apply(exports,arguments)
},{"dup":4}],31:[function(require,module,exports){
arguments[4][5][0].apply(exports,arguments)
},{"dup":5}],32:[function(require,module,exports){
var simplify = require('simplify-js');
// supported GeoJSON geometries, used to check whether to wrap in simpleFeature()
var supportedTypes = ['LineString', 'MultiLineString', 'Polygon', 'MultiPolygon'];
/**
* Takes a {@link LineString} or {@link Polygon} and returns a simplified version. Internally uses [simplify-js](http://mourner.github.io/simplify-js/) to perform simplification.
*
* @name simplify
* @param {Feature<(LineString|Polygon|MultiLineString|MultiPolygon)>|FeatureCollection|GeometryCollection} feature feature to be simplified
* @param {number} [tolerance=1] simplification tolerance
* @param {boolean} [highQuality=false] whether or not to spend more time to create
* a higher-quality simplification with a different algorithm
* @return {Feature<(LineString|Polygon|MultiLineString|MultiPolygon)>|FeatureCollection|GeometryCollection} a simplified feature
* @example
* var feature = {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Polygon",
* "coordinates": [[
* [-70.603637, -33.399918],
* [-70.614624, -33.395332],
* [-70.639343, -33.392466],
* [-70.659942, -33.394759],
* [-70.683975, -33.404504],
* [-70.697021, -33.419406],
* [-70.701141, -33.434306],
* [-70.700454, -33.446339],
* [-70.694274, -33.458369],
* [-70.682601, -33.465816],
* [-70.668869, -33.472117],
* [-70.646209, -33.473835],
* [-70.624923, -33.472117],
* [-70.609817, -33.468107],
* [-70.595397, -33.458369],
* [-70.587158, -33.442901],
* [-70.587158, -33.426283],
* [-70.590591, -33.414248],
* [-70.594711, -33.406224],
* [-70.603637, -33.399918]
* ]]
* }
* };
* var tolerance = 0.01;
*
* var simplified = turf.simplify(
* feature, tolerance, false);
*
* //=feature
*
* //=simplified
*/
module.exports = function (feature, tolerance, highQuality) {
if (feature.type === 'Feature') {
return simpleFeature(
simplifyHelper(feature, tolerance, highQuality),
feature.properties);
} else if (feature.type === 'FeatureCollection') {
return {
type: 'FeatureCollection',
features: feature.features.map(function (f) {
var simplified = simplifyHelper(f, tolerance, highQuality);
// we create simpleFeature here because it doesn't apply to GeometryCollection
// so we can't create it at simplifyHelper()
if (supportedTypes.indexOf(simplified.type) > -1) {
return simpleFeature(simplified, f.properties);
} else {
return simplified;
}
})
};
} else if (feature.type === 'GeometryCollection') {
return {
type: 'GeometryCollection',
geometries: feature.geometries.map(function (g) {
if (supportedTypes.indexOf(g.type) > -1) {
return simplifyHelper({
type: 'Feature',
geometry: g
}, tolerance, highQuality);
}
return g;
})
};
} else {
return feature;
}
};
function simplifyHelper(feature, tolerance, highQuality) {
if (feature.geometry.type === 'LineString') {
return {
type: 'LineString',
coordinates: simplifyLine(feature.geometry.coordinates, tolerance, highQuality)
};
} else if (feature.geometry.type === 'MultiLineString') {
return {
type: 'MultiLineString',
coordinates: feature.geometry.coordinates.map(function (lines) {
return simplifyLine(lines, tolerance, highQuality);
})
};
} else if (feature.geometry.type === 'Polygon') {
return {
type: 'Polygon',
coordinates: simplifyPolygon(feature.geometry.coordinates, tolerance, highQuality)
};
} else if (feature.geometry.type === 'MultiPolygon') {
return {
type: 'MultiPolygon',
coordinates: feature.geometry.coordinates.map(function (rings) {
return simplifyPolygon(rings, tolerance, highQuality);
})
};
} else {
// unsupported geometry type supplied
return feature;
}
}
/*
* returns true if ring's first coordinate is the same as its last
*/
function checkValidity(ring) {
if (ring.length < 3) {
return false;
//if the last point is the same as the first, it's not a triangle
} else if (ring.length === 3 &&
((ring[2][0] === ring[0][0]) && (ring[2][1] === ring[0][1]))) {
return false;
} else {
return true;
}
}
function simpleFeature(geom, properties) {
return {
type: 'Feature',
geometry: geom,
properties: properties
};
}
function simplifyLine(coordinates, tolerance, highQuality) {
return simplify(coordinates.map(function (coord) {
return {x: coord[0], y: coord[1], z: coord[2]};
}), tolerance, highQuality).map(function (coords) {
return (coords.z) ? [coords.x, coords.y, coords.z] : [coords.x, coords.y];
});
}
function simplifyPolygon(coordinates, tolerance, highQuality) {
return coordinates.map(function (ring) {
var pts = ring.map(function (coord) {
return {x: coord[0], y: coord[1]};
});
if (pts.length < 4) {
throw new Error('Invalid polygon');
}
var simpleRing = simplify(pts, tolerance, highQuality).map(function (coords) {
return [coords.x, coords.y];
});
//remove 1 percent of tolerance until enough points to make a triangle
while (!checkValidity(simpleRing)) {
tolerance -= tolerance * 0.01;
simpleRing = simplify(pts, tolerance, highQuality).map(function (coords) {
return [coords.x, coords.y];
});
}
if (
(simpleRing[simpleRing.length - 1][0] !== simpleRing[0][0]) ||
(simpleRing[simpleRing.length - 1][1] !== simpleRing[0][1])) {
simpleRing.push(simpleRing[0]);
}
return simpleRing;
});
}
},{"simplify-js":53}],33:[function(require,module,exports){
var jsts = require('jsts');
/**
* Takes two or more {@link Polygon|polygons} and returns a combined polygon. If the input polygons are not contiguous, this function returns a {@link MultiPolygon} feature.
*
* @name union
* @param {...Feature<Polygon>} A polygon to combine
* @return {Feature<(Polygon|MultiPolygon)>} a combined {@link Polygon} or {@link MultiPolygon} feature
* @example
* var poly1 = {
* "type": "Feature",
* "properties": {
* "fill": "#0f0"
* },
* "geometry": {
* "type": "Polygon",
* "coordinates": [[
* [-82.574787, 35.594087],
* [-82.574787, 35.615581],
* [-82.545261, 35.615581],
* [-82.545261, 35.594087],
* [-82.574787, 35.594087]
* ]]
* }
* };
* var poly2 = {
* "type": "Feature",
* "properties": {
* "fill": "#00f"
* },
* "geometry": {
* "type": "Polygon",
* "coordinates": [[
* [-82.560024, 35.585153],
* [-82.560024, 35.602602],
* [-82.52964, 35.602602],
* [-82.52964, 35.585153],
* [-82.560024, 35.585153]
* ]]
* }
* };
* var polygons = {
* "type": "FeatureCollection",
* "features": [poly1, poly2]
* };
*
* var union = turf.union(poly1, poly2);
*
* //=polygons
*
* //=union
*/
module.exports = function () {
var reader = new jsts.io.GeoJSONReader();
var result = reader.read(JSON.stringify(arguments[0].geometry));
for (var i = 1; i < arguments.length; i++) {
result = result.union(reader.read(JSON.stringify(arguments[i].geometry)));
}
var writer = new jsts.io.GeoJSONWriter();
result = writer.write(result);
return {
type: 'Feature',
geometry: result,
properties: arguments[0].properties
};
};
},{"jsts":43}],34:[function(require,module,exports){
var inside = require('@turf/inside');
var featureCollection = require('@turf/helpers').featureCollection;
/**
* Takes a set of {@link Point|points} and a set of {@link Polygon|polygons} and returns the points that fall within the polygons.
*
* @name within
* @param {FeatureCollection<Point>} points input points
* @param {FeatureCollection<Polygon>} polygons input polygons
* @return {FeatureCollection<Point>} points that land within at least one polygon
* @example
* var searchWithin = {
* "type": "FeatureCollection",
* "features": [
* {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Polygon",
* "coordinates": [[
* [-46.653,-23.543],
* [-46.634,-23.5346],
* [-46.613,-23.543],
* [-46.614,-23.559],
* [-46.631,-23.567],
* [-46.653,-23.560],
* [-46.653,-23.543]
* ]]
* }
* }
* ]
* };
* var points = {
* "type": "FeatureCollection",
* "features": [
* {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [-46.6318, -23.5523]
* }
* }, {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [-46.6246, -23.5325]
* }
* }, {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [-46.6062, -23.5513]
* }
* }, {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [-46.663, -23.554]
* }
* }, {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [-46.643, -23.557]
* }
* }
* ]
* };
*
* var ptsWithin = turf.within(points, searchWithin);
*
* //=points
*
* //=searchWithin
*
* //=ptsWithin
*/
module.exports = function (points, polygons) {
var pointsWithin = featureCollection([]);
for (var i = 0; i < polygons.features.length; i++) {
for (var j = 0; j < points.features.length; j++) {
var isInside = inside(points.features[j], polygons.features[i]);
if (isInside) {
pointsWithin.features.push(points.features[j]);
}
}
}
return pointsWithin;
};
},{"@turf/helpers":14,"@turf/inside":15}],35:[function(require,module,exports){
'use strict'
module.exports = affineHull
var orient = require('robust-orientation')
function linearlyIndependent(points, d) {
var nhull = new Array(d+1)
for(var i=0; i<points.length; ++i) {
nhull[i] = points[i]
}
for(var i=0; i<=points.length; ++i) {
for(var j=points.length; j<=d; ++j) {
var x = new Array(d)
for(var k=0; k<d; ++k) {
x[k] = Math.pow(j+1-i, k)
}
nhull[j] = x
}
var o = orient.apply(void 0, nhull)
if(o) {
return true
}
}
return false
}
function affineHull(points) {
var n = points.length
if(n === 0) {
return []
}
if(n === 1) {
return [0]
}
var d = points[0].length
var frame = [ points[0] ]
var index = [ 0 ]
for(var i=1; i<n; ++i) {
frame.push(points[i])
if(!linearlyIndependent(frame, d)) {
frame.pop()
continue
}
index.push(i)
if(index.length === d+1) {
return index
}
}
return index
}
},{"robust-orientation":48}],36:[function(require,module,exports){
/**
* Bit twiddling hacks for JavaScript.
*
* Author: Mikola Lysenko
*
* Ported from Stanford bit twiddling hack library:
* http://graphics.stanford.edu/~seander/bithacks.html
*/
"use restrict";
//Number of bits in an integer
var INT_BITS = 32;
//Constants
exports.INT_BITS = INT_BITS;
exports.INT_MAX = 0x7fffffff;
exports.INT_MIN = -1<<(INT_BITS-1);
//Returns -1, 0, +1 depending on sign of x
exports.sign = function(v) {
return (v > 0) - (v < 0);
}
//Computes absolute value of integer
exports.abs = function(v) {
var mask = v >> (INT_BITS-1);
return (v ^ mask) - mask;
}
//Computes minimum of integers x and y
exports.min = function(x, y) {
return y ^ ((x ^ y) & -(x < y));
}
//Computes maximum of integers x and y
exports.max = function(x, y) {
return x ^ ((x ^ y) & -(x < y));
}
//Checks if a number is a power of two
exports.isPow2 = function(v) {
return !(v & (v-1)) && (!!v);
}
//Computes log base 2 of v
exports.log2 = function(v) {
var r, shift;
r = (v > 0xFFFF) << 4; v >>>= r;
shift = (v > 0xFF ) << 3; v >>>= shift; r |= shift;
shift = (v > 0xF ) << 2; v >>>= shift; r |= shift;
shift = (v > 0x3 ) << 1; v >>>= shift; r |= shift;
return r | (v >> 1);
}
//Computes log base 10 of v
exports.log10 = function(v) {
return (v >= 1000000000) ? 9 : (v >= 100000000) ? 8 : (v >= 10000000) ? 7 :
(v >= 1000000) ? 6 : (v >= 100000) ? 5 : (v >= 10000) ? 4 :
(v >= 1000) ? 3 : (v >= 100) ? 2 : (v >= 10) ? 1 : 0;
}
//Counts number of bits
exports.popCount = function(v) {
v = v - ((v >>> 1) & 0x55555555);
v = (v & 0x33333333) + ((v >>> 2) & 0x33333333);
return ((v + (v >>> 4) & 0xF0F0F0F) * 0x1010101) >>> 24;
}
//Counts number of trailing zeros
function countTrailingZeros(v) {
var c = 32;
v &= -v;
if (v) c--;
if (v & 0x0000FFFF) c -= 16;
if (v & 0x00FF00FF) c -= 8;
if (v & 0x0F0F0F0F) c -= 4;
if (v & 0x33333333) c -= 2;
if (v & 0x55555555) c -= 1;
return c;
}
exports.countTrailingZeros = countTrailingZeros;
//Rounds to next power of 2
exports.nextPow2 = function(v) {
v += v === 0;
--v;
v |= v >>> 1;
v |= v >>> 2;
v |= v >>> 4;
v |= v >>> 8;
v |= v >>> 16;
return v + 1;
}
//Rounds down to previous power of 2
exports.prevPow2 = function(v) {
v |= v >>> 1;
v |= v >>> 2;
v |= v >>> 4;
v |= v >>> 8;
v |= v >>> 16;
return v - (v>>>1);
}
//Computes parity of word
exports.parity = function(v) {
v ^= v >>> 16;
v ^= v >>> 8;
v ^= v >>> 4;
v &= 0xf;
return (0x6996 >>> v) & 1;
}
var REVERSE_TABLE = new Array(256);
(function(tab) {
for(var i=0; i<256; ++i) {
var v = i, r = i, s = 7;
for (v >>>= 1; v; v >>>= 1) {
r <<= 1;
r |= v & 1;
--s;
}
tab[i] = (r << s) & 0xff;
}
})(REVERSE_TABLE);
//Reverse bits in a 32 bit word
exports.reverse = function(v) {
return (REVERSE_TABLE[ v & 0xff] << 24) |
(REVERSE_TABLE[(v >>> 8) & 0xff] << 16) |
(REVERSE_TABLE[(v >>> 16) & 0xff] << 8) |
REVERSE_TABLE[(v >>> 24) & 0xff];
}
//Interleave bits of 2 coordinates with 16 bits. Useful for fast quadtree codes
exports.interleave2 = function(x, y) {
x &= 0xFFFF;
x = (x | (x << 8)) & 0x00FF00FF;
x = (x | (x << 4)) & 0x0F0F0F0F;
x = (x | (x << 2)) & 0x33333333;
x = (x | (x << 1)) & 0x55555555;
y &= 0xFFFF;
y = (y | (y << 8)) & 0x00FF00FF;
y = (y | (y << 4)) & 0x0F0F0F0F;
y = (y | (y << 2)) & 0x33333333;
y = (y | (y << 1)) & 0x55555555;
return x | (y << 1);
}
//Extracts the nth interleaved component
exports.deinterleave2 = function(v, n) {
v = (v >>> n) & 0x55555555;
v = (v | (v >>> 1)) & 0x33333333;
v = (v | (v >>> 2)) & 0x0F0F0F0F;
v = (v | (v >>> 4)) & 0x00FF00FF;
v = (v | (v >>> 16)) & 0x000FFFF;
return (v << 16) >> 16;
}
//Interleave bits of 3 coordinates, each with 10 bits. Useful for fast octree codes
exports.interleave3 = function(x, y, z) {
x &= 0x3FF;
x = (x | (x<<16)) & 4278190335;
x = (x | (x<<8)) & 251719695;
x = (x | (x<<4)) & 3272356035;
x = (x | (x<<2)) & 1227133513;
y &= 0x3FF;
y = (y | (y<<16)) & 4278190335;
y = (y | (y<<8)) & 251719695;
y = (y | (y<<4)) & 3272356035;
y = (y | (y<<2)) & 1227133513;
x |= (y << 1);
z &= 0x3FF;
z = (z | (z<<16)) & 4278190335;
z = (z | (z<<8)) & 251719695;
z = (z | (z<<4)) & 3272356035;
z = (z | (z<<2)) & 1227133513;
return x | (z << 2);
}
//Extracts nth interleaved component of a 3-tuple
exports.deinterleave3 = function(v, n) {
v = (v >>> n) & 1227133513;
v = (v | (v>>>2)) & 3272356035;
v = (v | (v>>>4)) & 251719695;
v = (v | (v>>>8)) & 4278190335;
v = (v | (v>>>16)) & 0x3FF;
return (v<<22)>>22;
}
//Computes next combination in colexicographic order (this is mistakenly called nextPermutation on the bit twiddling hacks page)
exports.nextCombination = function(v) {
var t = v | (v - 1);
return (t + 1) | (((~t & -~t) - 1) >>> (countTrailingZeros(v) + 1));
}
},{}],37:[function(require,module,exports){
"use strict"
var convexHull1d = require('./lib/ch1d')
var convexHull2d = require('./lib/ch2d')
var convexHullnd = require('./lib/chnd')
module.exports = convexHull
function convexHull(points) {
var n = points.length
if(n === 0) {
return []
} else if(n === 1) {
return [[0]]
}
var d = points[0].length
if(d === 0) {
return []
} else if(d === 1) {
return convexHull1d(points)
} else if(d === 2) {
return convexHull2d(points)
}
return convexHullnd(points, d)
}
},{"./lib/ch1d":38,"./lib/ch2d":39,"./lib/chnd":40}],38:[function(require,module,exports){
"use strict"
module.exports = convexHull1d
function convexHull1d(points) {
var lo = 0
var hi = 0
for(var i=1; i<points.length; ++i) {
if(points[i][0] < points[lo][0]) {
lo = i
}
if(points[i][0] > points[hi][0]) {
hi = i
}
}
if(lo < hi) {
return [[lo], [hi]]
} else if(lo > hi) {
return [[hi], [lo]]
} else {
return [[lo]]
}
}
},{}],39:[function(require,module,exports){
'use strict'
module.exports = convexHull2D
var monotoneHull = require('monotone-convex-hull-2d')
function convexHull2D(points) {
var hull = monotoneHull(points)
var h = hull.length
if(h <= 2) {
return []
}
var edges = new Array(h)
var a = hull[h-1]
for(var i=0; i<h; ++i) {
var b = hull[i]
edges[i] = [a,b]
a = b
}
return edges
}
},{"monotone-convex-hull-2d":45}],40:[function(require,module,exports){
'use strict'
module.exports = convexHullnD
var ich = require('incremental-convex-hull')
var aff = require('affine-hull')
function permute(points, front) {
var n = points.length
var npoints = new Array(n)
for(var i=0; i<front.length; ++i) {
npoints[i] = points[front[i]]
}
var ptr = front.length
for(var i=0; i<n; ++i) {
if(front.indexOf(i) < 0) {
npoints[ptr++] = points[i]
}
}
return npoints
}
function invPermute(cells, front) {
var nc = cells.length
var nf = front.length
for(var i=0; i<nc; ++i) {
var c = cells[i]
for(var j=0; j<c.length; ++j) {
var x = c[j]
if(x < nf) {
c[j] = front[x]
} else {
x = x - nf
for(var k=0; k<nf; ++k) {
if(x >= front[k]) {
x += 1
}
}
c[j] = x
}
}
}
return cells
}
function convexHullnD(points, d) {
try {
return ich(points, true)
} catch(e) {
//If point set is degenerate, try to find a basis and rerun it
var ah = aff(points)
if(ah.length <= d) {
//No basis, no try
return []
}
var npoints = permute(points, ah)
var nhull = ich(npoints, true)
return invPermute(nhull, ah)
}
}
},{"affine-hull":35,"incremental-convex-hull":42}],41:[function(require,module,exports){
var turfBBox = require('@turf/bbox');
var featureCollection = require('@turf/helpers').featureCollection;
var featureEach = require('@turf/meta').featureEach;
var rbush = require('rbush');
/**
* GeoJSON implementation of [RBush](https://github.com/mourner/rbush#rbush) spatial index.
*
* @name rbush
* @param {number} [maxEntries=9] defines the maximum number of entries in a tree node. 9 (used by default) is a
* reasonable choice for most applications. Higher value means faster insertion and slower search, and vice versa.
* @returns {RBush} GeoJSON RBush
* @example
* var rbush = require('geojson-rbush')
* var tree = rbush()
*/
module.exports = function (maxEntries) {
var tree = rbush(maxEntries);
/**
* [insert](https://github.com/mourner/rbush#data-format)
*
* @param {Feature<any>} feature insert single GeoJSON Feature
* @returns {RBush} GeoJSON RBush
* @example
* var polygon = {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Polygon",
* "coordinates": [[[-78, 41], [-67, 41], [-67, 48], [-78, 48], [-78, 41]]]
* }
* }
* tree.insert(polygon)
*/
tree.insert = function (feature) {
feature.bbox = feature.bbox ? feature.bbox : turfBBox(feature);
return rbush.prototype.insert.call(this, feature);
};
/**
* [load](https://github.com/mourner/rbush#bulk-inserting-data)
*
* @param {FeatureCollection<any>} features load entire GeoJSON FeatureCollection
* @returns {RBush} GeoJSON RBush
* @example
* var polygons = {
* "type": "FeatureCollection",
* "features": [
* {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Polygon",
* "coordinates": [[[-78, 41], [-67, 41], [-67, 48], [-78, 48], [-78, 41]]]
* }
* },
* {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Polygon",
* "coordinates": [[[-93, 32], [-83, 32], [-83, 39], [-93, 39], [-93, 32]]]
* }
* }
* ]
* }
* tree.load(polygons)
*/
tree.load = function (features) {
var load = [];
featureEach(features, function (feature) {
feature.bbox = feature.bbox ? feature.bbox : turfBBox(feature);
load.push(feature);
});
return rbush.prototype.load.call(this, load);
};
/**
* [remove](https://github.com/mourner/rbush#removing-data)
*
* @param {Feature<any>} feature remove single GeoJSON Feature
* @returns {RBush} GeoJSON RBush
* @example
* var polygon = {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Polygon",
* "coordinates": [[[-78, 41], [-67, 41], [-67, 48], [-78, 48], [-78, 41]]]
* }
* }
* tree.remove(polygon)
*/
tree.remove = function (feature) {
return rbush.prototype.remove.call(this, feature);
};
/**
* [clear](https://github.com/mourner/rbush#removing-data)
*
* @returns {RBush} GeoJSON Rbush
* @example
* tree.clear()
*/
tree.clear = function () {
return rbush.prototype.clear.call(this);
};
/**
* [search](https://github.com/mourner/rbush#search)
*
* @param {FeatureCollection|Feature<any>} geojson search with GeoJSON
* @returns {FeatureCollection<any>} all features that intersects with the given GeoJSON.
* @example
* var polygon = {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Polygon",
* "coordinates": [[[-78, 41], [-67, 41], [-67, 48], [-78, 48], [-78, 41]]]
* }
* }
* tree.search(polygon)
*/
tree.search = function (geojson) {
var search = rbush.prototype.search.call(this, this.toBBox(geojson));
return featureCollection(search);
};
/**
* [collides](https://github.com/mourner/rbush#collisions)
*
* @param {FeatureCollection|Feature<any>} geojson collides with GeoJSON
* @returns {boolean} true if there are any items intersecting the given GeoJSON, otherwise false.
* @example
* var polygon = {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Polygon",
* "coordinates": [[[-78, 41], [-67, 41], [-67, 48], [-78, 48], [-78, 41]]]
* }
* }
* tree.collides(polygon)
*/
tree.collides = function (geojson) {
return rbush.prototype.collides.call(this, this.toBBox(geojson));
};
/**
* [all](https://github.com/mourner/rbush#search)
*
* @returns {FeatureCollection<any>} all the features in RBush
* @example
* tree.all()
* //=FeatureCollection
*/
tree.all = function () {
var all = rbush.prototype.all.call(this);
return featureCollection(all);
};
/**
* [toJSON](https://github.com/mourner/rbush#export-and-import)
*
* @returns {any} export data as JSON object
* @example
* var exported = tree.toJSON()
* //=JSON object
*/
tree.toJSON = function () {
return rbush.prototype.toJSON.call(this);
};
/**
* [fromJSON](https://github.com/mourner/rbush#export-and-import)
*
* @param {any} json import previously exported data
* @returns {RBush} GeoJSON RBush
* @example
* var exported = {
* "children": [
* {
* "type": "Feature",
* "geometry": {
* "type": "Point",
* "coordinates": [110, 50]
* },
* "properties": {},
* "bbox": [110, 50, 110, 50]
* }
* ],
* "height": 1,
* "leaf": true,
* "minX": 110,
* "minY": 50,
* "maxX": 110,
* "maxY": 50
* }
* tree.fromJSON(exported)
*/
tree.fromJSON = function (json) {
return rbush.prototype.fromJSON.call(this, json);
};
/**
* Converts GeoJSON to {minX, minY, maxX, maxY} schema
*
* @private
* @param {FeatureCollectio|Feature<any>} geojson feature(s) to retrieve BBox from
* @returns {Object} converted to {minX, minY, maxX, maxY}
*/
tree.toBBox = function (geojson) {
var bbox = geojson.bbox ? geojson.bbox : turfBBox(geojson);
return {
minX: bbox[0],
minY: bbox[1],
maxX: bbox[2],
maxY: bbox[3]
};
};
return tree;
};
},{"@turf/bbox":6,"@turf/helpers":14,"@turf/meta":28,"rbush":47}],42:[function(require,module,exports){
"use strict"
//High level idea:
// 1. Use Clarkson's incremental construction to find convex hull
// 2. Point location in triangulation by jump and walk
module.exports = incrementalConvexHull
var orient = require("robust-orientation")
var compareCell = require("simplicial-complex").compareCells
function compareInt(a, b) {
return a - b
}
function Simplex(vertices, adjacent, boundary) {
this.vertices = vertices
this.adjacent = adjacent
this.boundary = boundary
this.lastVisited = -1
}
Simplex.prototype.flip = function() {
var t = this.vertices[0]
this.vertices[0] = this.vertices[1]
this.vertices[1] = t
var u = this.adjacent[0]
this.adjacent[0] = this.adjacent[1]
this.adjacent[1] = u
}
function GlueFacet(vertices, cell, index) {
this.vertices = vertices
this.cell = cell
this.index = index
}
function compareGlue(a, b) {
return compareCell(a.vertices, b.vertices)
}
function bakeOrient(d) {
var code = ["function orient(){var tuple=this.tuple;return test("]
for(var i=0; i<=d; ++i) {
if(i > 0) {
code.push(",")
}
code.push("tuple[", i, "]")
}
code.push(")}return orient")
var proc = new Function("test", code.join(""))
var test = orient[d+1]
if(!test) {
test = orient
}
return proc(test)
}
var BAKED = []
function Triangulation(dimension, vertices, simplices) {
this.dimension = dimension
this.vertices = vertices
this.simplices = simplices
this.interior = simplices.filter(function(c) {
return !c.boundary
})
this.tuple = new Array(dimension+1)
for(var i=0; i<=dimension; ++i) {
this.tuple[i] = this.vertices[i]
}
var o = BAKED[dimension]
if(!o) {
o = BAKED[dimension] = bakeOrient(dimension)
}
this.orient = o
}
var proto = Triangulation.prototype
//Degenerate situation where we are on boundary, but coplanar to face
proto.handleBoundaryDegeneracy = function(cell, point) {
var d = this.dimension
var n = this.vertices.length - 1
var tuple = this.tuple
var verts = this.vertices
//Dumb solution: Just do dfs from boundary cell until we find any peak, or terminate
var toVisit = [ cell ]
cell.lastVisited = -n
while(toVisit.length > 0) {
cell = toVisit.pop()
var cellVerts = cell.vertices
var cellAdj = cell.adjacent
for(var i=0; i<=d; ++i) {
var neighbor = cellAdj[i]
if(!neighbor.boundary || neighbor.lastVisited <= -n) {
continue
}
var nv = neighbor.vertices
for(var j=0; j<=d; ++j) {
var vv = nv[j]
if(vv < 0) {
tuple[j] = point
} else {
tuple[j] = verts[vv]
}
}
var o = this.orient()
if(o > 0) {
return neighbor
}
neighbor.lastVisited = -n
if(o === 0) {
toVisit.push(neighbor)
}
}
}
return null
}
proto.walk = function(point, random) {
//Alias local properties
var n = this.vertices.length - 1
var d = this.dimension
var verts = this.vertices
var tuple = this.tuple
//Compute initial jump cell
var initIndex = random ? (this.interior.length * Math.random())|0 : (this.interior.length-1)
var cell = this.interior[ initIndex ]
//Start walking
outerLoop:
while(!cell.boundary) {
var cellVerts = cell.vertices
var cellAdj = cell.adjacent
for(var i=0; i<=d; ++i) {
tuple[i] = verts[cellVerts[i]]
}
cell.lastVisited = n
//Find farthest adjacent cell
for(var i=0; i<=d; ++i) {
var neighbor = cellAdj[i]
if(neighbor.lastVisited >= n) {
continue
}
var prev = tuple[i]
tuple[i] = point
var o = this.orient()
tuple[i] = prev
if(o < 0) {
cell = neighbor
continue outerLoop
} else {
if(!neighbor.boundary) {
neighbor.lastVisited = n
} else {
neighbor.lastVisited = -n
}
}
}
return
}
return cell
}
proto.addPeaks = function(point, cell) {
var n = this.vertices.length - 1
var d = this.dimension
var verts = this.vertices
var tuple = this.tuple
var interior = this.interior
var simplices = this.simplices
//Walking finished at boundary, time to add peaks
var tovisit = [ cell ]
//Stretch initial boundary cell into a peak
cell.lastVisited = n
cell.vertices[cell.vertices.indexOf(-1)] = n
cell.boundary = false
interior.push(cell)
//Record a list of all new boundaries created by added peaks so we can glue them together when we are all done
var glueFacets = []
//Do a traversal of the boundary walking outward from starting peak
while(tovisit.length > 0) {
//Pop off peak and walk over adjacent cells
var cell = tovisit.pop()
var cellVerts = cell.vertices
var cellAdj = cell.adjacent
var indexOfN = cellVerts.indexOf(n)
if(indexOfN < 0) {
continue
}
for(var i=0; i<=d; ++i) {
if(i === indexOfN) {
continue
}
//For each boundary neighbor of the cell
var neighbor = cellAdj[i]
if(!neighbor.boundary || neighbor.lastVisited >= n) {
continue
}
var nv = neighbor.vertices
//Test if neighbor is a peak
if(neighbor.lastVisited !== -n) {
//Compute orientation of p relative to each boundary peak
var indexOfNeg1 = 0
for(var j=0; j<=d; ++j) {
if(nv[j] < 0) {
indexOfNeg1 = j
tuple[j] = point
} else {
tuple[j] = verts[nv[j]]
}
}
var o = this.orient()
//Test if neighbor cell is also a peak
if(o > 0) {
nv[indexOfNeg1] = n
neighbor.boundary = false
interior.push(neighbor)
tovisit.push(neighbor)
neighbor.lastVisited = n
continue
} else {
neighbor.lastVisited = -n
}
}
var na = neighbor.adjacent
//Otherwise, replace neighbor with new face
var vverts = cellVerts.slice()
var vadj = cellAdj.slice()
var ncell = new Simplex(vverts, vadj, true)
simplices.push(ncell)
//Connect to neighbor
var opposite = na.indexOf(cell)
if(opposite < 0) {
continue
}
na[opposite] = ncell
vadj[indexOfN] = neighbor
//Connect to cell
vverts[i] = -1
vadj[i] = cell
cellAdj[i] = ncell
//Flip facet
ncell.flip()
//Add to glue list
for(var j=0; j<=d; ++j) {
var uu = vverts[j]
if(uu < 0 || uu === n) {
continue
}
var nface = new Array(d-1)
var nptr = 0
for(var k=0; k<=d; ++k) {
var vv = vverts[k]
if(vv < 0 || k === j) {
continue
}
nface[nptr++] = vv
}
glueFacets.push(new GlueFacet(nface, ncell, j))
}
}
}
//Glue boundary facets together
glueFacets.sort(compareGlue)
for(var i=0; i+1<glueFacets.length; i+=2) {
var a = glueFacets[i]
var b = glueFacets[i+1]
var ai = a.index
var bi = b.index
if(ai < 0 || bi < 0) {
continue
}
a.cell.adjacent[a.index] = b.cell
b.cell.adjacent[b.index] = a.cell
}
}
proto.insert = function(point, random) {
//Add point
var verts = this.vertices
verts.push(point)
var cell = this.walk(point, random)
if(!cell) {
return
}
//Alias local properties
var d = this.dimension
var tuple = this.tuple
//Degenerate case: If point is coplanar to cell, then walk until we find a non-degenerate boundary
for(var i=0; i<=d; ++i) {
var vv = cell.vertices[i]
if(vv < 0) {
tuple[i] = point
} else {
tuple[i] = verts[vv]
}
}
var o = this.orient(tuple)
if(o < 0) {
return
} else if(o === 0) {
cell = this.handleBoundaryDegeneracy(cell, point)
if(!cell) {
return
}
}
//Add peaks
this.addPeaks(point, cell)
}
//Extract all boundary cells
proto.boundary = function() {
var d = this.dimension
var boundary = []
var cells = this.simplices
var nc = cells.length
for(var i=0; i<nc; ++i) {
var c = cells[i]
if(c.boundary) {
var bcell = new Array(d)
var cv = c.vertices
var ptr = 0
var parity = 0
for(var j=0; j<=d; ++j) {
if(cv[j] >= 0) {
bcell[ptr++] = cv[j]
} else {
parity = j&1
}
}
if(parity === (d&1)) {
var t = bcell[0]
bcell[0] = bcell[1]
bcell[1] = t
}
boundary.push(bcell)
}
}
return boundary
}
function incrementalConvexHull(points, randomSearch) {
var n = points.length
if(n === 0) {
throw new Error("Must have at least d+1 points")
}
var d = points[0].length
if(n <= d) {
throw new Error("Must input at least d+1 points")
}
//FIXME: This could be degenerate, but need to select d+1 non-coplanar points to bootstrap process
var initialSimplex = points.slice(0, d+1)
//Make sure initial simplex is positively oriented
var o = orient.apply(void 0, initialSimplex)
if(o === 0) {
throw new Error("Input not in general position")
}
var initialCoords = new Array(d+1)
for(var i=0; i<=d; ++i) {
initialCoords[i] = i
}
if(o < 0) {
initialCoords[0] = 1
initialCoords[1] = 0
}
//Create initial topological index, glue pointers together (kind of messy)
var initialCell = new Simplex(initialCoords, new Array(d+1), false)
var boundary = initialCell.adjacent
var list = new Array(d+2)
for(var i=0; i<=d; ++i) {
var verts = initialCoords.slice()
for(var j=0; j<=d; ++j) {
if(j === i) {
verts[j] = -1
}
}
var t = verts[0]
verts[0] = verts[1]
verts[1] = t
var cell = new Simplex(verts, new Array(d+1), true)
boundary[i] = cell
list[i] = cell
}
list[d+1] = initialCell
for(var i=0; i<=d; ++i) {
var verts = boundary[i].vertices
var adj = boundary[i].adjacent
for(var j=0; j<=d; ++j) {
var v = verts[j]
if(v < 0) {
adj[j] = initialCell
continue
}
for(var k=0; k<=d; ++k) {
if(boundary[k].vertices.indexOf(v) < 0) {
adj[j] = boundary[k]
}
}
}
}
//Initialize triangles
var triangles = new Triangulation(d, initialSimplex, list)
//Insert remaining points
var useRandom = !!randomSearch
for(var i=d+1; i<n; ++i) {
triangles.insert(points[i], useRandom)
}
//Extract boundary cells
return triangles.boundary()
}
},{"robust-orientation":48,"simplicial-complex":52}],43:[function(require,module,exports){
// JSTS. See https://github.com/bjornharrtell/jsts
// Licenses:
// https://github.com/bjornharrtell/jsts/blob/master/LICENSE_EDLv1.txt
// https://github.com/bjornharrtell/jsts/blob/master/LICENSE_EPLv1.txt
// https://github.com/bjornharrtell/jsts/blob/master/LICENSE_LICENSE_ES6_COLLECTIONS.txt
!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?e(exports):"function"==typeof define&&define.amd?define(["exports"],e):e(t.jsts=t.jsts||{})}(this,function(t){"use strict";function e(t,e){for(var n in e)e.hasOwnProperty(n)&&(t[n]=e[n])}function n(){}function i(){}function r(){}function s(){}function o(){}function a(){}function u(){}function l(t){this.name="RuntimeException",this.message=t,this.stack=(new Error).stack,Error.call(this,t)}function h(t,e){t.prototype=Object.create(e.prototype),t.prototype.constructor=t}function c(){if(0===arguments.length)l.call(this);else if(1===arguments.length){var t=arguments[0];l.call(this,t)}}function f(){}function g(){if(this.x=null,this.y=null,this.z=null,0===arguments.length)g.call(this,0,0);else if(1===arguments.length){var t=arguments[0];g.call(this,t.x,t.y,t.z)}else if(2===arguments.length){var e=arguments[0],n=arguments[1];g.call(this,e,n,g.NULL_ORDINATE)}else if(3===arguments.length){var i=arguments[0],r=arguments[1],s=arguments[2];this.x=i,this.y=r,this.z=s}}function d(){if(this.dimensionsToTest=2,0===arguments.length)d.call(this,2);else if(1===arguments.length){var t=arguments[0];if(2!==t&&3!==t)throw new i("only 2 or 3 dimensions may be specified");this.dimensionsToTest=t}}function p(){}function v(){}function m(t){this.message=t||""}function y(){}function x(t){this.message=t||""}function E(t){this.message=t||""}function I(){this.array_=[],arguments[0]instanceof v&&this.addAll(arguments[0])}function N(){if(I.apply(this),0===arguments.length);else if(1===arguments.length){var t=arguments[0];this.ensureCapacity(t.length),this.add(t,!0)}else if(2===arguments.length){var e=arguments[0],n=arguments[1];this.ensureCapacity(e.length),this.add(e,n)}}function C(){if(this.minx=null,this.maxx=null,this.miny=null,this.maxy=null,0===arguments.length)this.init();else if(1===arguments.length){if(arguments[0]instanceof g){var t=arguments[0];this.init(t.x,t.x,t.y,t.y)}else 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fi(){if(this.min=null,this.max=null,0===arguments.length)this.min=0,this.max=0;else if(1===arguments.length){var t=arguments[0];this.init(t.min,t.max)}else if(2===arguments.length){var e=arguments[0],n=arguments[1];this.init(e,n)}}function gi(){}function di(t,e){var n,i,r,s,o={32:{d:127,c:128,b:0,a:0},64:{d:32752,c:0,b:0,a:0}},a={32:8,64:11}[t];if(s||(n=e<0||1/e<0,isFinite(e)||(s=o[t],n&&(s.d+=1<<t/4-1),i=Math.pow(2,a)-1,r=0)),!s){for(i={32:127,64:1023}[t],r=Math.abs(e);r>=2;)i++,r/=2;for(;r<1&&i>0;)i--,r*=2;i<=0&&(r/=2),32===t&&i>254&&(s={d:n?255:127,c:128,b:0,a:0},i=Math.pow(2,a)-1,r=0)}return i}function pi(){this.pt=0,this.level=0,this.interval=null;var t=arguments[0];this.computeKey(t)}function vi(){ci.apply(this),this.interval=null,this.centre=null,this.level=null;var t=arguments[0],e=arguments[1];this.interval=t,this.level=e,this.centre=(t.getMin()+t.getMax())/2}function mi(){}function yi(){ci.apply(this)}function xi(){this.root=null,this.minExtent=1,this.root=new yi}function Ei(){}function Ii(){this.ring=null,this.tree=null,this.crossings=0,this.interval=new fi;var t=arguments[0];this.ring=t,this.buildIndex()}function Ni(){hi.apply(this),this.mcp=null,this.p=null;var t=arguments[0],e=arguments[1];this.mcp=t,this.p=e}function Ci(){}function Si(){this.p0=null,this.p1=null,this.p2=null;var t=arguments[0],e=arguments[1],n=arguments[2];this.p0=t,this.p1=e,this.p2=n}function wi(){this.input=null,this.extremalPts=null,this.centre=null,this.radius=0;var t=arguments[0];this.input=t}function Li(){if(this.inputGeom=null,this.isConvex=null,this.convexHullPts=null,this.minBaseSeg=new ce,this.minWidthPt=null,this.minPtIndex=null,this.minWidth=0,1===arguments.length){var t=arguments[0];Li.call(this,t,!1)}else if(2===arguments.length){var e=arguments[0],n=arguments[1];this.inputGeom=e,this.isConvex=n}}function Ri(){this.inputGeom=null,this.distanceTolerance=null;var t=arguments[0];this.inputGeom=t}function Ti(){xe.apply(this),this.distanceTolerance=null;var t=arguments[0];this.distanceTolerance=t}function Pi(){this._orig=null,this._sym=null,this._next=null;var t=arguments[0];this._orig=t}function bi(){this._isMarked=!1;var t=arguments[0];Pi.call(this,t)}function Oi(){this.vertexMap=new te}function _i(){this._isStart=!1;var t=arguments[0];bi.call(this,t)}function Mi(){Oi.apply(this)}function Di(){this.result=null,this.factory=null,this.graph=null,this.lines=new I,this.nodeEdgeStack=new pe,this.ringStartEdge=null,this.graph=new Mi}function Ai(){this.items=new I,this.subnode=new Array(4).fill(null)}function Fi(){this.pt=new g,this.level=0,this.env=null;var t=arguments[0];this.computeKey(t)}function Gi(){Ai.apply(this),this.env=null,this.centrex=null,this.centrey=null,this.level=null;var t=arguments[0],e=arguments[1];this.env=t,this.level=e,this.centrex=(t.getMinX()+t.getMaxX())/2,this.centrey=(t.getMinY()+t.getMaxY())/2}function qi(){Ai.apply(this)}function Bi(){this.root=null,this.minExtent=1,this.root=new qi}function zi(t){this.geometryFactory=t||new ie}function Vi(t){this.geometryFactory=t||new ie,this.precisionModel=this.geometryFactory.getPrecisionModel(),this.parser=new zi(this.geometryFactory)}function ki(){this.parser=new zi(this.geometryFactory)}function Yi(t){this.geometryFactory=t||new ie,this.precisionModel=this.geometryFactory.getPrecisionModel(),this.parser=new re(this.geometryFactory)}function Ui(t){return[t.x,t.y]}function Xi(t,e){this.geometryFactory=t||new ie,this.ol=e||"undefined"!=typeof ol&&ol}function Hi(){if(this.noder=null,this.scaleFactor=null,this.offsetX=null,this.offsetY=null,this.isScaled=!1,2===arguments.length){var t=arguments[0],e=arguments[1];Hi.call(this,t,e,0,0)}else if(4===arguments.length){var n=arguments[0],i=arguments[1];arguments[2],arguments[3];this.noder=n,this.scaleFactor=i,this.isScaled=!this.isIntegerPrecision()}}function Wi(){if(this.inputGeom=null,this.isClosedEndpointsInInterior=!0,this.nonSimpleLocation=null,1===arguments.length){var t=arguments[0];this.inputGeom=t}else if(2===arguments.length){var e=arguments[0],n=arguments[1];
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I,this.nodes=new I,this.rightMostCoord=null,this.env=null,this.finder=new Zi}function $i(){this.inputLine=null,this.distanceTol=null,this.isDeleted=null,this.angleOrientation=he.COUNTERCLOCKWISE;var t=arguments[0];this.inputLine=t}function tr(){this.ptList=null,this.precisionModel=null,this.minimimVertexDistance=0,this.ptList=new I}function er(){this.maxCurveSegmentError=0,this.filletAngleQuantum=null,this.closingSegLengthFactor=1,this.segList=null,this.distance=0,this.precisionModel=null,this.bufParams=null,this.li=null,this.s0=null,this.s1=null,this.s2=null,this.seg0=new ce,this.seg1=new ce,this.offset0=new ce,this.offset1=new ce,this.side=0,this._hasNarrowConcaveAngle=!1;var t=arguments[0],e=arguments[1],n=arguments[2];this.precisionModel=t,this.bufParams=e,this.li=new ae,this.filletAngleQuantum=Math.PI/2/e.getQuadrantSegments(),e.getQuadrantSegments()>=8&&e.getJoinStyle()===Ki.JOIN_ROUND&&(this.closingSegLengthFactor=er.MAX_CLOSING_SEG_LEN_FACTOR),this.init(n)}function nr(){this.distance=0,this.precisionModel=null,this.bufParams=null;var t=arguments[0],e=arguments[1];this.precisionModel=t,this.bufParams=e}function ir(){this.subgraphs=null,this.seg=new ce,this.cga=new he;var t=arguments[0];this.subgraphs=t}function rr(){this.upwardSeg=null,this.leftDepth=null;var t=arguments[0],e=arguments[1];this.upwardSeg=new ce(t),this.leftDepth=e}function sr(){this.inputGeom=null,this.distance=null,this.curveBuilder=null,this.curveList=new I;var t=arguments[0],e=arguments[1],n=arguments[2];this.inputGeom=t,this.distance=e,this.curveBuilder=n}function or(){this._hasIntersection=!1,this.hasProper=!1,this.hasProperInterior=!1,this.hasInterior=!1,this.properIntersectionPoint=null,this.li=null,this.isSelfIntersection=null,this.numIntersections=0,this.numInteriorIntersections=0,this.numProperIntersections=0,this.numTests=0;var t=arguments[0];this.li=t}function ar(){this.bufParams=null,this.workingPrecisionModel=null,this.workingNoder=null,this.geomFact=null,this.graph=null,this.edgeList=new ni;var t=arguments[0];this.bufParams=t}function ur(){this.li=new ae,this.segStrings=null;var t=arguments[0];this.segStrings=t}function lr(){this.li=null,this.pt=null,this.originalPt=null,this.ptScaled=null,this.p0Scaled=null,this.p1Scaled=null,this.scaleFactor=null,this.minx=null,this.maxx=null,this.miny=null,this.maxy=null,this.corner=new Array(4).fill(null),this.safeEnv=null;var t=arguments[0],e=arguments[1],n=arguments[2];if(this.originalPt=t,this.pt=t,this.scaleFactor=e,this.li=n,e<=0)throw new i("Scale factor must be non-zero");1!==e&&(this.pt=new g(this.scale(t.x),this.scale(t.y)),this.p0Scaled=new g,this.p1Scaled=new g),this.initCorners(this.pt)}function hr(){this.index=null;var t=arguments[0];this.index=t}function cr(){hi.apply(this),this.hotPixel=null,this.parentEdge=null,this.hotPixelVertexIndex=null,this._isNodeAdded=!1;var t=arguments[0],e=arguments[1],n=arguments[2];this.hotPixel=t,this.parentEdge=e,this.hotPixelVertexIndex=n}function fr(){this.li=null,this.interiorIntersections=null;var t=arguments[0];this.li=t,this.interiorIntersections=new I}function gr(){this.pm=null,this.li=null,this.scaleFactor=null,this.noder=null,this.pointSnapper=null,this.nodedSegStrings=null;var t=arguments[0];this.pm=t,this.li=new ae,this.li.setPrecisionModel(t),this.scaleFactor=t.getScale()}function dr(){if(this.argGeom=null,this.distance=null,this.bufParams=new Ki,this.resultGeometry=null,this.saveException=null,1===arguments.length){var t=arguments[0];this.argGeom=t}else if(2===arguments.length){var e=arguments[0],n=arguments[1];this.argGeom=e,this.bufParams=n}}function pr(){this.comps=null;var t=arguments[0];this.comps=t}function vr(){if(this.component=null,this.segIndex=null,this.pt=null,2===arguments.length){var t=arguments[0],e=arguments[1];vr.call(this,t,vr.INSIDE_AREA,e)}else if(3===arguments.length){var n=arguments[0],i=arguments[1],r=arguments[2];this.component=n,this.segIndex=i,this.pt=r}}function mr(){this.pts=null;var t=arguments[0];this.pts=t}function yr(){this.locations=null;var t=arguments[0];this.locations=t}function xr(){if(this.geom=null,this.terminateDistance=0,this.ptLocator=new Te,this.minDistanceLocation=null,this.minDistance=r.MAX_VALUE,2===arguments.length){var t=arguments[0],e=arguments[1];xr.call(this,t,e,0)}else if(3===arguments.length){var n=arguments[0],i=arguments[1],s=arguments[2];this.geom=new Array(2).fill(null),this.geom[0]=n,this.geom[1]=i,this.terminateDistance=s}}function Er(){this.factory=null,this.directedEdges=new I,this.coordinates=null;var t=arguments[0];this.factory=t}function Ir(){this._isMarked=!1,this._isVisited=!1,this.data=null}function Nr(){Ir.apply(this),this.parentEdge=null,this.from=null,this.to=null,this.p0=null,this.p1=null,this.sym=null,this.edgeDirection=null,this.quadrant=null,this.angle=null;var t=arguments[0],e=arguments[1],n=arguments[2],i=arguments[3];this.from=t,this.to=e,this.edgeDirection=i,this.p0=t.getCoordinate(),this.p1=n;var r=this.p1.x-this.p0.x,s=this.p1.y-this.p0.y;this.quadrant=Je.quadrant(r,s),this.angle=Math.atan2(s,r)}function Cr(){var t=arguments[0],e=arguments[1],n=arguments[2],i=arguments[3];Nr.call(this,t,e,n,i)}function Sr(){if(Ir.apply(this),this.dirEdge=null,0===arguments.length);else if(2===arguments.length){var t=arguments[0],e=arguments[1];this.setDirectedEdges(t,e)}}function wr(){this.outEdges=new I,this.sorted=!1}function Lr(){if(Ir.apply(this),this.pt=null,this.deStar=null,1===arguments.length){var t=arguments[0];Lr.call(this,t,new wr)}else if(2===arguments.length){var e=arguments[0],n=arguments[1];this.pt=e,this.deStar=n}}function Rr(){Sr.apply(this),this.line=null;var t=arguments[0];this.line=t}function Tr(){this.nodeMap=new rt}function Pr(){this.edges=new J,this.dirEdges=new J,this.nodeMap=new Tr}function br(){Pr.apply(this)}function Or(){this.graph=new br,this.mergedLineStrings=null,this.factory=null,this.edgeStrings=null}function _r(){this.edgeRing=null,this.next=null,this.label=-1;var t=arguments[0],e=arguments[1],n=arguments[2],i=arguments[3];Nr.call(this,t,e,n,i)}function Mr(){Sr.apply(this),this.line=null;var t=arguments[0];this.line=t}function Dr(){this.geometryFactory=new ie,this.geomGraph=null,this.disconnectedRingcoord=null;var t=arguments[0];this.geomGraph=t}function Ar(){}function Fr(){if(this.edgeEnds=new I,1===arguments.length){var t=arguments[0];Fr.call(this,null,t)}else if(2===arguments.length){var e=(arguments[0],arguments[1]);En.call(this,e.getEdge(),e.getCoordinate(),e.getDirectedCoordinate(),new gn(e.getLabel())),this.insert(e)}}function Gr(){Pn.apply(this)}function qr(){var t=arguments[0],e=arguments[1];yn.call(this,t,e)}function Br(){Nn.apply(this)}function zr(){this.nodes=new xn(new Br)}function Vr(){this.li=new ae,this.geomGraph=null,this.nodeGraph=new zr,this.invalidPoint=null;var t=arguments[0];this.geomGraph=t}function kr(){this.graph=null,this.rings=new I,this.totalEnv=new C,this.index=null,this.nestedPt=null;var t=arguments[0];this.graph=t}function Yr(){if(this.errorType=null,this.pt=null,1===arguments.length){var t=arguments[0];Yr.call(this,t,null)}else if(2===arguments.length){var e=arguments[0],n=arguments[1];this.errorType=e,null!==n&&(this.pt=n.copy())}}function Ur(){this.parentGeometry=null,this.isSelfTouchingRingFormingHoleValid=!1,this.validErr=null;var t=arguments[0];this.parentGeometry=t}function Xr(){this.factory=null,this.deList=new I,this.lowestEdge=null,this.ring=null,this.ringPts=null,this.holes=null,this.shell=null,this._isHole=null,this._isProcessed=!1,this._isIncludedSet=!1,this._isIncluded=!1;var t=arguments[0];this.factory=t}function Hr(){}function Wr(){Pr.apply(this),this.factory=null;var t=arguments[0];this.factory=t}function jr(){if(this.lineStringAdder=new Kr(this),this.graph=null,this.dangles=new I,this.cutEdges=new I,this.invalidRingLines=new I,this.holeList=null,this.shellList=null,this.polyList=null,this.isCheckingRingsValid=!0,this.extractOnlyPolygonal=null,this.geomFactory=null,0===arguments.length)jr.call(this,!1);else if(1===arguments.length){var t=arguments[0];this.extractOnlyPolygonal=t}}function Kr(){this.p=null;var t=arguments[0];this.p=t}function Zr(){this.li=new ae,this.ptLocator=new Te,this.arg=null,this.nodes=new xn(new Br),this.im=null,this.isolatedEdges=new I,this.invalidPoint=null;var t=arguments[0];this.arg=t}function Qr(){this.rectEnv=null;var t=arguments[0];this.rectEnv=t.getEnvelopeInternal()}function Jr(){this.li=new ae,this.rectEnv=null,this.diagUp0=null,this.diagUp1=null,this.diagDown0=null,this.diagDown1=null;var t=arguments[0];this.rectEnv=t,this.diagUp0=new g(t.getMinX(),t.getMinY()),this.diagUp1=new g(t.getMaxX(),t.getMaxY()),this.diagDown0=new g(t.getMinX(),t.getMaxY()),this.diagDown1=new g(t.getMaxX(),t.getMinY())}function $r(){this._isDone=!1}function 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I,this.minimumSize=null,1===arguments.length){var t=arguments[0];vs.call(this,t,2)}else if(2===arguments.length){var e=arguments[0],n=arguments[1];this.parentLine=e,this.minimumSize=n,this.init()}}function ms(){this.index=new Bi}function ys(){this.querySeg=null,this.items=new I;var t=arguments[0];this.querySeg=t}function xs(){this.li=new ae,this.inputIndex=new ms,this.outputIndex=new ms,this.line=null,this.linePts=null,this.distanceTolerance=0;var t=arguments[0],e=arguments[1];this.inputIndex=t,this.outputIndex=e}function Es(){this.inputIndex=new ms,this.outputIndex=new ms,this.distanceTolerance=0}function Is(){this.inputGeom=null,this.lineSimplifier=new Es,this.linestringMap=null;var t=arguments[0];this.inputGeom=t}function Ns(){xe.apply(this),this.linestringMap=null;var t=arguments[0];this.linestringMap=t}function Cs(){this.tps=null;var t=arguments[0];this.tps=t}function Ss(){this.seg=null,this.segLen=null,this.splitPt=null,this.minimumLen=0;var 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u=arguments[0],l=arguments[1],n=null,i=null,h=null,c=null,r=null,s=null,o=null,a=null;r=this.hi+u,h=this.lo+l,o=r-this.hi,a=h-this.lo,s=r-o,c=h-a,s=u-o+(this.hi-s),c=l-a+(this.lo-c),o=s+h,n=r+o,i=o+(r-n),o=c+i;var f=n+o,g=o+(n-f);return this.hi=f,this.lo=g,this}},selfMultiply:function(){if(1===arguments.length){if(arguments[0]instanceof _){var t=arguments[0];return this.selfMultiply(t.hi,t.lo)}if("number"==typeof arguments[0]){var e=arguments[0];return this.selfMultiply(e,0)}}else if(2===arguments.length){var n=arguments[0],i=arguments[1],r=null,s=null,o=null,a=null,u=null,l=null;u=_.SPLIT*this.hi,r=u-this.hi,l=_.SPLIT*n,r=u-r,s=this.hi-r,o=l-n,u=this.hi*n,o=l-o,a=n-o,l=r*o-u+r*a+s*o+s*a+(this.hi*i+this.lo*n);var h=u+l;r=u-h;var c=l+r;return this.hi=h,this.lo=c,this}},selfSqr:function(){return this.selfMultiply(this)},floor:function(){if(this.isNaN())return _.NaN;var t=Math.floor(this.hi),e=0;return t===this.hi&&(e=Math.floor(this.lo)),new _(t,e)},negate:function(){return 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pt,this.endpointMap.put(t,e)),e.count++},interfaces_:function(){return[]},getClass:function(){return dt}}),dt.getBoundary=function(){if(1===arguments.length){var t=arguments[0],e=new dt(t);return e.getBoundary()}if(2===arguments.length){var n=arguments[0],i=arguments[1],e=new dt(n,i);return e.getBoundary()}},e(pt.prototype,{interfaces_:function(){return[]},getClass:function(){return pt}}),e(Nt.prototype,{interfaces_:function(){return[]},getClass:function(){return Nt}}),Nt.chars=function(t,e){for(var n=new Array(e).fill(null),i=0;i<e;i++)n[i]=t;return new String(n)},Nt.getStackTrace=function(){if(1===arguments.length){var t=arguments[0],e=new xt,n=new vt(e);return t.printStackTrace(n),e.toString()}if(2===arguments.length){for(var i=arguments[0],r=arguments[1],s="",o=new mt(Nt.getStackTrace(i)),a=new It(o),u=0;u<r;u++)try{s+=a.readLine()+Nt.NEWLINE}catch(t){if(!(t instanceof Et))throw t;f.shouldNeverReachHere()}finally{}return s}},Nt.split=function(t,e){for(var n=e.length,i=new I,r=""+t,s=r.indexOf(e);s>=0;){var o=r.substring(0,s);i.add(o),r=r.substring(s+n),s=r.indexOf(e)}r.length>0&&i.add(r);for(var a=new Array(i.size()).fill(null),u=0;u<a.length;u++)a[u]=i.get(u);return a},Nt.toString=function(){if(1===arguments.length){var t=arguments[0];return Nt.SIMPLE_ORDINATE_FORMAT.format(t)}},Nt.spaces=function(t){return Nt.chars(" ",t)},Nt.NEWLINE=A.getProperty("line.separator"),Nt.SIMPLE_ORDINATE_FORMAT=new yt("0.#"),e(Ct.prototype,{interfaces_:function(){return[]},getClass:function(){return Ct}}),Ct.copyCoord=function(t,e,n,i){for(var r=Math.min(t.getDimension(),n.getDimension()),s=0;s<r;s++)n.setOrdinate(i,s,t.getOrdinate(e,s))},Ct.isRing=function(t){var e=t.size();return 0===e||!(e<=3)&&(t.getOrdinate(0,D.X)===t.getOrdinate(e-1,D.X)&&t.getOrdinate(0,D.Y)===t.getOrdinate(e-1,D.Y))},Ct.isEqual=function(t,e){var n=t.size(),i=e.size();if(n!==i)return!1;for(var s=Math.min(t.getDimension(),e.getDimension()),o=0;o<n;o++)for(var a=0;a<s;a++){var u=t.getOrdinate(o,a),l=e.getOrdinate(o,a);if(!(t.getOrdinate(o,a)===e.getOrdinate(o,a)||r.isNaN(u)&&r.isNaN(l)))return!1}return!0},Ct.extend=function(t,e,n){var i=t.create(n,e.getDimension()),r=e.size();if(Ct.copy(e,0,i,0,r),r>0)for(var s=r;s<n;s++)Ct.copy(e,r-1,i,s,1);return i},Ct.reverse=function(t){for(var e=t.size()-1,n=Math.trunc(e/2),i=0;i<=n;i++)Ct.swap(t,i,e-i)},Ct.swap=function(t,e,n){if(e===n)return null;for(var i=0;i<t.getDimension();i++){var r=t.getOrdinate(e,i);t.setOrdinate(e,i,t.getOrdinate(n,i)),t.setOrdinate(n,i,r)}},Ct.copy=function(t,e,n,i,r){for(var s=0;s<r;s++)Ct.copyCoord(t,e+s,n,i+s)},Ct.toString=function(){if(1===arguments.length){var t=arguments[0],e=t.size();if(0===e)return"()";var n=t.getDimension(),i=new P;i.append("(");for(var r=0;r<e;r++){r>0&&i.append(" ");for(var s=0;s<n;s++)s>0&&i.append(","),i.append(Nt.toString(t.getOrdinate(r,s)))}return i.append(")"),i.toString()}},Ct.ensureValidRing=function(t,e){var n=e.size();if(0===n)return e;if(n<=3)return Ct.createClosedRing(t,e,4);var i=e.getOrdinate(0,D.X)===e.getOrdinate(n-1,D.X)&&e.getOrdinate(0,D.Y)===e.getOrdinate(n-1,D.Y);return i?e:Ct.createClosedRing(t,e,n+1)},Ct.createClosedRing=function(t,e,n){var i=t.create(n,e.getDimension()),r=e.size();Ct.copy(e,0,i,0,r);for(var s=r;s<n;s++)Ct.copy(e,0,i,s,1);return i},h(St,B),e(St.prototype,{computeEnvelopeInternal:function(){return this.isEmpty()?new C:this.points.expandEnvelope(new C)},isRing:function(){return this.isClosed()&&this.isSimple()},getSortIndex:function(){return B.SORTINDEX_LINESTRING},getCoordinates:function(){return this.points.toCoordinateArray()},equalsExact:function(){if(2===arguments.length){var t=arguments[0],e=arguments[1];if(!this.isEquivalentClass(t))return!1;var n=t;if(this.points.size()!==n.points.size())return!1;for(var i=0;i<this.points.size();i++)if(!this.equal(this.points.getCoordinate(i),n.points.getCoordinate(i),e))return!1;return!0}return B.prototype.equalsExact.apply(this,arguments)},normalize:function(){for(var t=0;t<Math.trunc(this.points.size()/2);t++){var e=this.points.size()-1-t;if(!this.points.getCoordinate(t).equals(this.points.getCoordinate(e)))return this.points.getCoordinate(t).compareTo(this.points.getCoordinate(e))>0&&Ct.reverse(this.points),null}},getCoordinate:function(){return this.isEmpty()?null:this.points.getCoordinate(0)},getBoundaryDimension:function(){return this.isClosed()?lt.FALSE:0},isClosed:function(){return!this.isEmpty()&&this.getCoordinateN(0).equals2D(this.getCoordinateN(this.getNumPoints()-1))},getEndPoint:function(){return this.isEmpty()?null:this.getPointN(this.getNumPoints()-1)},getDimension:function(){return 1},getLength:function(){return he.computeLength(this.points)},getNumPoints:function(){return this.points.size()},reverse:function(){var t=this.points.copy();Ct.reverse(t);var e=this.getFactory().createLineString(t);return e},compareToSameClass:function(){if(1===arguments.length){for(var t=arguments[0],e=t,n=0,i=0;n<this.points.size()&&i<e.points.size();){var r=this.points.getCoordinate(n).compareTo(e.points.getCoordinate(i));if(0!==r)return r;n++,i++}return n<this.points.size()?1:i<e.points.size()?-1:0}if(2===arguments.length){var s=arguments[0],o=arguments[1],e=s;return o.compare(this.points,e.points)}},apply:function(){if(R(arguments[0],z))for(var t=arguments[0],e=0;e<this.points.size();e++)t.filter(this.points.getCoordinate(e));else if(R(arguments[0],ct)){var n=arguments[0];if(0===this.points.size())return null;for(var e=0;e<this.points.size()&&(n.filter(this.points,e),!n.isDone());e++);n.isGeometryChanged()&&this.geometryChanged()}else if(R(arguments[0],ht)){var i=arguments[0];i.filter(this)}else if(R(arguments[0],q)){var r=arguments[0];r.filter(this)}},getBoundary:function(){return new dt(this).getBoundary()},isEquivalentClass:function(t){return t instanceof St},clone:function(){var t=B.prototype.clone.call(this);return t.points=this.points.clone(),t},getCoordinateN:function(t){return this.points.getCoordinate(t)},getGeometryType:function(){return"LineString"},copy:function(){return new St(this.points.copy(),this.factory)},getCoordinateSequence:function(){return this.points},isEmpty:function(){return 0===this.points.size()},init:function(t){if(null===t&&(t=this.getFactory().getCoordinateSequenceFactory().create([])),1===t.size())throw new i("Invalid number of points in LineString (found "+t.size()+" - must be 0 or >= 2)");this.points=t},isCoordinate:function(t){for(var e=0;e<this.points.size();e++)if(this.points.getCoordinate(e).equals(t))return!0;return!1},getStartPoint:function(){return this.isEmpty()?null:this.getPointN(0)},getPointN:function(t){return this.getFactory().createPoint(this.points.getCoordinate(t))},interfaces_:function(){return[st]},getClass:function(){return St}}),St.serialVersionUID=0x2b2b51ba435c8e00,e(wt.prototype,{interfaces_:function(){return[]},getClass:function(){return wt}}),h(Lt,B),e(Lt.prototype,{computeEnvelopeInternal:function(){if(this.isEmpty())return new C;var t=new C;return t.expandToInclude(this.coordinates.getX(0),this.coordinates.getY(0)),t},getSortIndex:function(){return B.SORTINDEX_POINT},getCoordinates:function(){return this.isEmpty()?[]:[this.getCoordinate()]},equalsExact:function(){if(2===arguments.length){var t=arguments[0],e=arguments[1];return!!this.isEquivalentClass(t)&&(!(!this.isEmpty()||!t.isEmpty())||this.isEmpty()===t.isEmpty()&&this.equal(t.getCoordinate(),this.getCoordinate(),e))}return B.prototype.equalsExact.apply(this,arguments)},normalize:function(){},getCoordinate:function(){return 0!==this.coordinates.size()?this.coordinates.getCoordinate(0):null},getBoundaryDimension:function(){return lt.FALSE},getDimension:function(){return 0},getNumPoints:function(){return this.isEmpty()?0:1},reverse:function(){return this.copy()},getX:function(){if(null===this.getCoordinate())throw new IllegalStateException("getX called on empty Point");return this.getCoordinate().x},compareToSameClass:function(){if(1===arguments.length){var t=arguments[0],e=t;return this.getCoordinate().compareTo(e.getCoordinate())}if(2===arguments.length){var n=arguments[0],i=arguments[1],e=n;return i.compare(this.coordinates,e.coordinates)}},apply:function(){if(R(arguments[0],z)){var t=arguments[0];if(this.isEmpty())return null;t.filter(this.getCoordinate())}else if(R(arguments[0],ct)){var e=arguments[0];if(this.isEmpty())return null;e.filter(this.coordinates,0),e.isGeometryChanged()&&this.geometryChanged()}else if(R(arguments[0],ht)){var n=arguments[0];n.filter(this)}else if(R(arguments[0],q)){var i=arguments[0];i.filter(this)}},getBoundary:function(){return this.getFactory().createGeometryCollection(null)},clone:function(){var t=B.prototype.clone.call(this);return t.coordinates=this.coordinates.clone(),t},getGeometryType:function(){return"Point"},copy:function(){return new Lt(this.coordinates.copy(),this.factory)},getCoordinateSequence:function(){return this.coordinates},getY:function(){if(null===this.getCoordinate())throw new IllegalStateException("getY called on empty Point");return this.getCoordinate().y},isEmpty:function(){return 0===this.coordinates.size()},init:function(t){null===t&&(t=this.getFactory().getCoordinateSequenceFactory().create([])),f.isTrue(t.size()<=1),this.coordinates=t},isSimple:function(){return!0},interfaces_:function(){return[wt]},getClass:function(){return Lt}}),Lt.serialVersionUID=0x44077bad161cbc00,e(Rt.prototype,{interfaces_:function(){return[]},getClass:function(){return Rt}}),h(Tt,B),e(Tt.prototype,{computeEnvelopeInternal:function(){return this.shell.getEnvelopeInternal()},getSortIndex:function(){return B.SORTINDEX_POLYGON},getCoordinates:function(){if(this.isEmpty())return[];for(var t=new Array(this.getNumPoints()).fill(null),e=-1,n=this.shell.getCoordinates(),i=0;i<n.length;i++)e++,t[e]=n[i];for(var r=0;r<this.holes.length;r++)for(var s=this.holes[r].getCoordinates(),o=0;o<s.length;o++)e++,t[e]=s[o];return t},getArea:function(){var t=0;t+=Math.abs(he.signedArea(this.shell.getCoordinateSequence()));for(var e=0;e<this.holes.length;e++)t-=Math.abs(he.signedArea(this.holes[e].getCoordinateSequence()));return t},isRectangle:function(){if(0!==this.getNumInteriorRing())return!1;if(null===this.shell)return!1;if(5!==this.shell.getNumPoints())return!1;for(var t=this.shell.getCoordinateSequence(),e=this.getEnvelopeInternal(),n=0;n<5;n++){var i=t.getX(n);if(i!==e.getMinX()&&i!==e.getMaxX())return!1;var r=t.getY(n);if(r!==e.getMinY()&&r!==e.getMaxY())return!1}for(var s=t.getX(0),o=t.getY(0),n=1;n<=4;n++){var i=t.getX(n),r=t.getY(n),a=i!==s,u=r!==o;if(a===u)return!1;s=i,o=r}return!0},equalsExact:function(){if(2===arguments.length){var t=arguments[0],e=arguments[1];if(!this.isEquivalentClass(t))return!1;var n=t,i=this.shell,r=n.shell;if(!i.equalsExact(r,e))return!1;if(this.holes.length!==n.holes.length)return!1;for(var s=0;s<this.holes.length;s++)if(!this.holes[s].equalsExact(n.holes[s],e))return!1;return!0}return B.prototype.equalsExact.apply(this,arguments)},normalize:function(){if(0===arguments.length){this.normalize(this.shell,!0);for(var t=0;t<this.holes.length;t++)this.normalize(this.holes[t],!1);ut.sort(this.holes)}else if(2===arguments.length){var e=arguments[0],n=arguments[1];if(e.isEmpty())return null;var i=new Array(e.getCoordinates().length-1).fill(null);A.arraycopy(e.getCoordinates(),0,i,0,i.length);var r=H.minCoordinate(e.getCoordinates());H.scroll(i,r),A.arraycopy(i,0,e.getCoordinates(),0,i.length),e.getCoordinates()[i.length]=i[0],he.isCCW(e.getCoordinates())===n&&H.reverse(e.getCoordinates())}},getCoordinate:function(){return this.shell.getCoordinate()},getNumInteriorRing:function(){return this.holes.length},getBoundaryDimension:function(){return 1},getDimension:function(){return 2},getLength:function(){var t=0;t+=this.shell.getLength();for(var e=0;e<this.holes.length;e++)t+=this.holes[e].getLength();return t},getNumPoints:function(){for(var t=this.shell.getNumPoints(),e=0;e<this.holes.length;e++)t+=this.holes[e].getNumPoints();return t},reverse:function(){var t=this.copy();t.shell=this.shell.copy().reverse(),t.holes=new Array(this.holes.length).fill(null);for(var e=0;e<this.holes.length;e++)t.holes[e]=this.holes[e].copy().reverse();return t},convexHull:function(){return this.getExteriorRing().convexHull()},compareToSameClass:function(){if(1===arguments.length){var t=arguments[0],e=this.shell,n=t.shell;return e.compareToSameClass(n)}if(2===arguments.length){var i=arguments[0],r=arguments[1],s=i,e=this.shell,n=s.shell,o=e.compareToSameClass(n,r);if(0!==o)return o;for(var a=this.getNumInteriorRing(),u=s.getNumInteriorRing(),l=0;l<a&&l<u;){var h=this.getInteriorRingN(l),c=s.getInteriorRingN(l),f=h.compareToSameClass(c,r);if(0!==f)return f;l++}return l<a?1:l<u?-1:0}},apply:function(){if(R(arguments[0],z)){var t=arguments[0];this.shell.apply(t);for(var e=0;e<this.holes.length;e++)this.holes[e].apply(t)}else if(R(arguments[0],ct)){var n=arguments[0];if(this.shell.apply(n),!n.isDone())for(var e=0;e<this.holes.length&&(this.holes[e].apply(n),!n.isDone());e++);n.isGeometryChanged()&&this.geometryChanged()}else if(R(arguments[0],ht)){var i=arguments[0];i.filter(this)}else if(R(arguments[0],q)){var r=arguments[0];r.filter(this),this.shell.apply(r);for(var e=0;e<this.holes.length;e++)this.holes[e].apply(r)}},getBoundary:function(){if(this.isEmpty())return this.getFactory().createMultiLineString();var t=new Array(this.holes.length+1).fill(null);t[0]=this.shell;for(var e=0;e<this.holes.length;e++)t[e+1]=this.holes[e];return t.length<=1?this.getFactory().createLinearRing(t[0].getCoordinateSequence()):this.getFactory().createMultiLineString(t)},clone:function(){var t=B.prototype.clone.call(this);t.shell=this.shell.clone(),t.holes=new Array(this.holes.length).fill(null);for(var e=0;e<this.holes.length;e++)t.holes[e]=this.holes[e].clone();return t},getGeometryType:function(){return"Polygon"},copy:function(){for(var t=this.shell.copy(),e=new Array(this.holes.length).fill(null),n=0;n<e.length;n++)e[n]=this.holes[n].copy();return new Tt(t,e,this.factory)},getExteriorRing:function(){return this.shell},isEmpty:function(){return this.shell.isEmpty()},getInteriorRingN:function(t){return this.holes[t]},interfaces_:function(){return[Rt]},getClass:function(){return Tt}}),Tt.serialVersionUID=-0x307ffefd8dc97200,h(Pt,ft),e(Pt.prototype,{getSortIndex:function(){return B.SORTINDEX_MULTIPOINT},isValid:function(){return!0},equalsExact:function(){if(2===arguments.length){var t=arguments[0],e=arguments[1];return!!this.isEquivalentClass(t)&&ft.prototype.equalsExact.call(this,t,e)}return ft.prototype.equalsExact.apply(this,arguments)},getCoordinate:function(){if(1===arguments.length){var t=arguments[0];return this.geometries[t].getCoordinate()}return ft.prototype.getCoordinate.apply(this,arguments)},getBoundaryDimension:function(){return lt.FALSE},getDimension:function(){return 0},getBoundary:function(){return this.getFactory().createGeometryCollection(null)},getGeometryType:function(){return"MultiPoint"},copy:function(){for(var t=new Array(this.geometries.length).fill(null),e=0;e<t.length;e++)t[e]=this.geometries[e].copy();return new Pt(t,this.factory)},interfaces_:function(){return[wt]},getClass:function(){return Pt}}),Pt.serialVersionUID=-0x6fb1ed4162e0fc00,h(bt,St),e(bt.prototype,{getSortIndex:function(){return B.SORTINDEX_LINEARRING},getBoundaryDimension:function(){return lt.FALSE},isClosed:function(){return!!this.isEmpty()||St.prototype.isClosed.call(this)},reverse:function(){var t=this.points.copy();Ct.reverse(t);var e=this.getFactory().createLinearRing(t);return e},validateConstruction:function(){if(!this.isEmpty()&&!St.prototype.isClosed.call(this))throw new i("Points of LinearRing do not form a closed linestring");if(this.getCoordinateSequence().size()>=1&&this.getCoordinateSequence().size()<bt.MINIMUM_VALID_SIZE)throw new i("Invalid number of points in LinearRing (found "+this.getCoordinateSequence().size()+" - must be 0 or >= 4)")},getGeometryType:function(){return"LinearRing"},copy:function(){return new bt(this.points.copy(),this.factory)},interfaces_:function(){return[]},getClass:function(){return bt}}),bt.MINIMUM_VALID_SIZE=4,bt.serialVersionUID=-0x3b229e262367a600,h(Ot,ft),e(Ot.prototype,{getSortIndex:function(){return B.SORTINDEX_MULTIPOLYGON},equalsExact:function(){if(2===arguments.length){var t=arguments[0],e=arguments[1];return!!this.isEquivalentClass(t)&&ft.prototype.equalsExact.call(this,t,e)}return ft.prototype.equalsExact.apply(this,arguments)},getBoundaryDimension:function(){return 1},getDimension:function(){return 2},reverse:function(){for(var t=this.geometries.length,e=new Array(t).fill(null),n=0;n<this.geometries.length;n++)e[n]=this.geometries[n].reverse();return this.getFactory().createMultiPolygon(e)},getBoundary:function(){if(this.isEmpty())return this.getFactory().createMultiLineString();for(var t=new I,e=0;e<this.geometries.length;e++)for(var n=this.geometries[e],i=n.getBoundary(),r=0;r<i.getNumGeometries();r++)t.add(i.getGeometryN(r));var s=new Array(t.size()).fill(null);return this.getFactory().createMultiLineString(t.toArray(s))},getGeometryType:function(){return"MultiPolygon"},copy:function(){for(var t=new Array(this.geometries.length).fill(null),e=0;e<t.length;e++)t[e]=this.geometries[e].copy();return new Ot(t,this.factory)},interfaces_:function(){return[Rt]},getClass:function(){return Ot}}),Ot.serialVersionUID=-0x7a5aa1369171980,e(_t.prototype,{setCopyUserData:function(t){this.isUserDataCopied=t},edit:function(t,e){if(null===t)return null;var n=this.editInternal(t,e);return this.isUserDataCopied&&n.setUserData(t.getUserData()),n},editInternal:function(t,e){return null===this.factory&&(this.factory=t.getFactory()),t instanceof ft?this.editGeometryCollection(t,e):t instanceof Tt?this.editPolygon(t,e):t instanceof Lt?e.edit(t,this.factory):t instanceof St?e.edit(t,this.factory):(f.shouldNeverReachHere("Unsupported Geometry class: "+t.getClass().getName()),null)},editGeometryCollection:function(t,e){for(var n=e.edit(t,this.factory),i=new I,r=0;r<n.getNumGeometries();r++){var s=this.edit(n.getGeometryN(r),e);null===s||s.isEmpty()||i.add(s)}return n.getClass()===Pt?this.factory.createMultiPoint(i.toArray([])):n.getClass()===gt?this.factory.createMultiLineString(i.toArray([])):n.getClass()===Ot?this.factory.createMultiPolygon(i.toArray([])):this.factory.createGeometryCollection(i.toArray([]))},editPolygon:function(t,e){var n=e.edit(t,this.factory);if(null===n&&(n=this.factory.createPolygon(null)),n.isEmpty())return n;var i=this.edit(n.getExteriorRing(),e);if(null===i||i.isEmpty())return this.factory.createPolygon();for(var r=new I,s=0;s<n.getNumInteriorRing();s++){var o=this.edit(n.getInteriorRingN(s),e);null===o||o.isEmpty()||r.add(o)}return this.factory.createPolygon(i,r.toArray([]))},interfaces_:function(){return[]},getClass:function(){return _t}}),_t.GeometryEditorOperation=Mt,e(Dt.prototype,{edit:function(t,e){return t},interfaces_:function(){return[Mt]},getClass:function(){return Dt}}),e(At.prototype,{edit:function(t,e){var n=this.editCoordinates(t.getCoordinates(),t);return null===n?t:t instanceof bt?e.createLinearRing(n):t instanceof St?e.createLineString(n):t instanceof Lt?n.length>0?e.createPoint(n[0]):e.createPoint():t},interfaces_:function(){return[Mt]},getClass:function(){return At}}),e(Ft.prototype,{edit:function(t,e){return t instanceof bt?e.createLinearRing(this.edit(t.getCoordinateSequence(),t)):t instanceof St?e.createLineString(this.edit(t.getCoordinateSequence(),t)):t instanceof Lt?e.createPoint(this.edit(t.getCoordinateSequence(),t)):t},interfaces_:function(){return[Mt]},getClass:function(){return Ft}}),_t.NoOpGeometryOperation=Dt,_t.CoordinateOperation=At,_t.CoordinateSequenceOperation=Ft,e(Gt.prototype,{setOrdinate:function(t,e,n){switch(e){case D.X:this.coordinates[t].x=n;break;case D.Y:this.coordinates[t].y=n;break;case D.Z:this.coordinates[t].z=n;break;default:throw new i("invalid ordinateIndex")}},size:function(){return this.coordinates.length},getOrdinate:function(t,e){switch(e){case D.X:return this.coordinates[t].x;case D.Y:return this.coordinates[t].y;case D.Z:return this.coordinates[t].z}return r.NaN},getCoordinate:function(){if(1===arguments.length){var t=arguments[0];return this.coordinates[t]}if(2===arguments.length){var e=arguments[0],n=arguments[1];n.x=this.coordinates[e].x,n.y=this.coordinates[e].y,n.z=this.coordinates[e].z}},getCoordinateCopy:function(t){return new g(this.coordinates[t])},getDimension:function(){return this.dimension},getX:function(t){return this.coordinates[t].x},clone:function(){for(var t=new Array(this.size()).fill(null),e=0;e<this.coordinates.length;e++)t[e]=this.coordinates[e].clone();return new Gt(t,this.dimension)},expandEnvelope:function(t){for(var e=0;e<this.coordinates.length;e++)t.expandToInclude(this.coordinates[e]);return t},copy:function(){for(var t=new Array(this.size()).fill(null),e=0;e<this.coordinates.length;e++)t[e]=this.coordinates[e].copy();return new Gt(t,this.dimension)},toString:function(){if(this.coordinates.length>0){var t=new P(17*this.coordinates.length);t.append("("),t.append(this.coordinates[0]);for(var e=1;e<this.coordinates.length;e++)t.append(", "),t.append(this.coordinates[e]);return t.append(")"),t.toString()}return"()"},getY:function(t){return this.coordinates[t].y},toCoordinateArray:function(){return this.coordinates},interfaces_:function(){return[D,u]},getClass:function(){return Gt}}),Gt.serialVersionUID=-0xcb44a778db18e00,e(qt.prototype,{readResolve:function(){return qt.instance()},create:function(){if(1===arguments.length){if(arguments[0]instanceof Array){var t=arguments[0];return new Gt(t)}if(R(arguments[0],D)){var e=arguments[0];return new Gt(e)}}else if(2===arguments.length){var n=arguments[0],i=arguments[1];return i>3&&(i=3),i<2?new Gt(n):new Gt(n,i)}},interfaces_:function(){return[G,u]},getClass:function(){return qt}}),qt.instance=function(){return qt.instanceObject},qt.serialVersionUID=-0x38e49fa6cf6f2e00,qt.instanceObject=new qt;var 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s=r.next(),o=s.getClass();null===e&&(e=o),o!==e&&(n=!0),s.isGeometryCollectionOrDerived()&&(i=!0)}if(null===e)return this.createGeometryCollection();if(n||i)return this.createGeometryCollection(ie.toGeometryArray(t));var a=t.iterator().next(),u=t.size()>1;if(u){if(a instanceof Tt)return this.createMultiPolygon(ie.toPolygonArray(t));if(a instanceof St)return this.createMultiLineString(ie.toLineStringArray(t));if(a instanceof Lt)return this.createMultiPoint(ie.toPointArray(t));f.shouldNeverReachHere("Unhandled class: "+a.getClass().getName())}return a},createMultiPointFromCoords:function(t){return this.createMultiPoint(null!==t?this.getCoordinateSequenceFactory().create(t):null)},createPoint:function(){if(0===arguments.length)return this.createPoint(this.getCoordinateSequenceFactory().create([]));if(1===arguments.length){if(arguments[0]instanceof g){var t=arguments[0];return this.createPoint(null!==t?this.getCoordinateSequenceFactory().create([t]):null)}if(R(arguments[0],D)){var e=arguments[0];return new Lt(e,this)}}},getCoordinateSequenceFactory:function(){return this.coordinateSequenceFactory},createPolygon:function(){if(0===arguments.length)return new Tt(null,null,this);if(1===arguments.length){if(R(arguments[0],D)){var t=arguments[0];return this.createPolygon(this.createLinearRing(t))}if(arguments[0]instanceof Array){var e=arguments[0];return this.createPolygon(this.createLinearRing(e))}if(arguments[0]instanceof bt){var n=arguments[0];return this.createPolygon(n,null)}}else if(2===arguments.length){var i=arguments[0],r=arguments[1];return new Tt(i,r,this)}},getSRID:function(){return this.SRID},createGeometryCollection:function(){if(0===arguments.length)return new ft(null,this);if(1===arguments.length){var t=arguments[0];return new ft(t,this)}},createGeometry:function(t){var e=new _t(this);return e.edit(t,{edit:function(){if(2===arguments.length){var t=arguments[0];arguments[1];return 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e=[],n=0,i=t.geometries.length;n<i;++n)e.push("("+ao.linestring.apply(this,[t.geometries[n]])+")");return e.join(",")},polygon:function(t){var e=[];e.push("("+ao.linestring.apply(this,[t.shell])+")");for(var n=0,i=t.holes.length;n<i;++n)e.push("("+ao.linestring.apply(this,[t.holes[n]])+")");return e.join(",")},multipolygon:function(t){for(var e=[],n=0,i=t.geometries.length;n<i;++n)e.push("("+ao.polygon.apply(this,[t.geometries[n]])+")");return e.join(",")},geometrycollection:function(t){for(var e=[],n=0,i=t.geometries.length;n<i;++n)e.push(this.extractGeometry(t.geometries[n]));return e.join(",")}},uo={point:function(t){if(void 0===t)return this.geometryFactory.createPoint();var e=t.trim().split(oo.spaces);return this.geometryFactory.createPoint(new g(Number.parseFloat(e[0]),Number.parseFloat(e[1])))},multipoint:function(t){if(void 0===t)return this.geometryFactory.createMultiPoint();for(var e,n=t.trim().split(","),i=[],r=0,s=n.length;r<s;++r)e=n[r].replace(oo.trimParens,"$1"),i.push(uo.point.apply(this,[e]));return this.geometryFactory.createMultiPoint(i)},linestring:function(t){if(void 0===t)return this.geometryFactory.createLineString();for(var e,n=t.trim().split(","),i=[],r=0,s=n.length;r<s;++r)e=n[r].trim().split(oo.spaces),i.push(new g(Number.parseFloat(e[0]),Number.parseFloat(e[1])));return this.geometryFactory.createLineString(i)},linearring:function(t){if(void 0===t)return this.geometryFactory.createLinearRing();for(var e,n=t.trim().split(","),i=[],r=0,s=n.length;r<s;++r)e=n[r].trim().split(oo.spaces),i.push(new g(Number.parseFloat(e[0]),Number.parseFloat(e[1])));return this.geometryFactory.createLinearRing(i)},multilinestring:function(t){if(void 0===t)return this.geometryFactory.createMultiLineString();for(var e,n=t.trim().split(oo.parenComma),i=[],r=0,s=n.length;r<s;++r)e=n[r].replace(oo.trimParens,"$1"),i.push(uo.linestring.apply(this,[e]));return this.geometryFactory.createMultiLineString(i)},polygon:function(t){if(void 0===t)return this.geometryFactory.createPolygon();for(var e,n,i,r,s=t.trim().split(oo.parenComma),o=[],a=0,u=s.length;a<u;++a)e=s[a].replace(oo.trimParens,"$1"),n=uo.linestring.apply(this,[e]),i=this.geometryFactory.createLinearRing(n.points),0===a?r=i:o.push(i);return this.geometryFactory.createPolygon(r,o)},multipolygon:function(t){if(void 0===t)return this.geometryFactory.createMultiPolygon();for(var e,n=t.trim().split(oo.doubleParenComma),i=[],r=0,s=n.length;r<s;++r)e=n[r].replace(oo.trimParens,"$1"),i.push(uo.polygon.apply(this,[e]));return this.geometryFactory.createMultiPolygon(i)},geometrycollection:function(t){if(void 0===t)return this.geometryFactory.createGeometryCollection();t=t.replace(/,\s*([A-Za-z])/g,"|$1");for(var e=t.trim().split("|"),n=[],i=0,r=e.length;i<r;++i)n.push(this.read(e[i]));return this.geometryFactory.createGeometryCollection(n)}};e(se.prototype,{write:function(t){return this.parser.write(t)}}),e(se,{toLineString:function(t,e){if(2!==arguments.length)throw new Error("Not implemented");return"LINESTRING ( "+t.x+" "+t.y+", "+e.x+" "+e.y+" )"}}),e(oe.prototype,{getIndexAlongSegment:function(t,e){return this.computeIntLineIndex(),this.intLineIndex[t][e]},getTopologySummary:function(){var t=new P;return this.isEndPoint()&&t.append(" endpoint"),this._isProper&&t.append(" proper"),this.isCollinear()&&t.append(" collinear"),t.toString()},computeIntersection:function(t,e,n,i){this.inputLines[0][0]=t,this.inputLines[0][1]=e,this.inputLines[1][0]=n,this.inputLines[1][1]=i,this.result=this.computeIntersect(t,e,n,i)},getIntersectionNum:function(){return this.result},computeIntLineIndex:function(){if(0===arguments.length)null===this.intLineIndex&&(this.intLineIndex=Array(2).fill().map(function(){return Array(2)}),this.computeIntLineIndex(0),this.computeIntLineIndex(1));else if(1===arguments.length){var t=arguments[0],e=this.getEdgeDistance(t,0),n=this.getEdgeDistance(t,1);e>n?(this.intLineIndex[t][0]=0,this.intLineIndex[t][1]=1):(this.intLineIndex[t][0]=1,this.intLineIndex[t][1]=0)}},isProper:function(){return this.hasIntersection()&&this._isProper},setPrecisionModel:function(t){this.precisionModel=t},isInteriorIntersection:function(){if(0===arguments.length)return!!this.isInteriorIntersection(0)||!!this.isInteriorIntersection(1);if(1===arguments.length){for(var t=arguments[0],e=0;e<this.result;e++)if(!this.intPt[e].equals2D(this.inputLines[t][0])&&!this.intPt[e].equals2D(this.inputLines[t][1]))return!0;return!1}},getIntersection:function(t){return this.intPt[t]},isEndPoint:function(){return this.hasIntersection()&&!this._isProper},hasIntersection:function(){return this.result!==oe.NO_INTERSECTION},getEdgeDistance:function(t,e){var n=oe.computeEdgeDistance(this.intPt[e],this.inputLines[t][0],this.inputLines[t][1]);return n},isCollinear:function(){return this.result===oe.COLLINEAR_INTERSECTION},toString:function(){return se.toLineString(this.inputLines[0][0],this.inputLines[0][1])+" - "+se.toLineString(this.inputLines[1][0],this.inputLines[1][1])+this.getTopologySummary()},getEndpoint:function(t,e){return this.inputLines[t][e]},isIntersection:function(t){for(var e=0;e<this.result;e++)if(this.intPt[e].equals2D(t))return!0;return!1},getIntersectionAlongSegment:function(t,e){return this.computeIntLineIndex(),this.intPt[this.intLineIndex[t][e]]},interfaces_:function(){return[]},getClass:function(){return oe}}),oe.computeEdgeDistance=function(t,e,n){var i=Math.abs(n.x-e.x),r=Math.abs(n.y-e.y),s=-1;if(t.equals(e))s=0;else if(t.equals(n))s=i>r?i:r;else{var o=Math.abs(t.x-e.x),a=Math.abs(t.y-e.y);s=i>r?o:a,0!==s||t.equals(e)||(s=Math.max(o,a))}return f.isTrue(!(0===s&&!t.equals(e)),"Bad distance calculation"),s},oe.nonRobustComputeEdgeDistance=function(t,e,n){var i=t.x-e.x,r=t.y-e.y,s=Math.sqrt(i*i+r*r);return f.isTrue(!(0===s&&!t.equals(e)),"Invalid distance calculation"),s},oe.DONT_INTERSECT=0,oe.DO_INTERSECT=1,oe.COLLINEAR=2,oe.NO_INTERSECTION=0,oe.POINT_INTERSECTION=1,oe.COLLINEAR_INTERSECTION=2,h(ae,oe),e(ae.prototype,{isInSegmentEnvelopes:function(t){var e=new C(this.inputLines[0][0],this.inputLines[0][1]),n=new C(this.inputLines[1][0],this.inputLines[1][1]);return e.contains(t)&&n.contains(t)},computeIntersection:function(){if(3!==arguments.length)return oe.prototype.computeIntersection.apply(this,arguments);var t=arguments[0],e=arguments[1],n=arguments[2];return this._isProper=!1,C.intersects(e,n,t)&&0===he.orientationIndex(e,n,t)&&0===he.orientationIndex(n,e,t)?(this._isProper=!0,(t.equals(e)||t.equals(n))&&(this._isProper=!1),this.result=oe.POINT_INTERSECTION,null):void(this.result=oe.NO_INTERSECTION)},normalizeToMinimum:function(t,e,n,i,r){r.x=this.smallestInAbsValue(t.x,e.x,n.x,i.x),r.y=this.smallestInAbsValue(t.y,e.y,n.y,i.y),t.x-=r.x,t.y-=r.y,e.x-=r.x,e.y-=r.y,n.x-=r.x,n.y-=r.y,i.x-=r.x,i.y-=r.y},safeHCoordinateIntersection:function(t,e,n,i){var r=null;try{r=F.intersection(t,e,n,i)}catch(s){if(!(s instanceof w))throw s;r=ae.nearestEndpoint(t,e,n,i)}finally{}return r},intersection:function(t,e,n,i){var r=this.intersectionWithNormalization(t,e,n,i);return this.isInSegmentEnvelopes(r)||(r=new g(ae.nearestEndpoint(t,e,n,i))),null!==this.precisionModel&&this.precisionModel.makePrecise(r),r},smallestInAbsValue:function(t,e,n,i){var r=t,s=Math.abs(r);return Math.abs(e)<s&&(r=e,s=Math.abs(e)),Math.abs(n)<s&&(r=n,s=Math.abs(n)),Math.abs(i)<s&&(r=i),r},checkDD:function(t,e,n,i,r){var s=M.intersection(t,e,n,i),o=this.isInSegmentEnvelopes(s);A.out.println("DD in env = "+o+" --------------------- "+s),r.distance(s)>1e-4&&A.out.println("Distance = "+r.distance(s))},intersectionWithNormalization:function(t,e,n,i){var r=new g(t),s=new g(e),o=new g(n),a=new g(i),u=new g;this.normalizeToEnvCentre(r,s,o,a,u);var l=this.safeHCoordinateIntersection(r,s,o,a);return l.x+=u.x,l.y+=u.y,l},computeCollinearIntersection:function(t,e,n,i){var r=C.intersects(t,e,n),s=C.intersects(t,e,i),o=C.intersects(n,i,t),a=C.intersects(n,i,e);return r&&s?(this.intPt[0]=n,this.intPt[1]=i,oe.COLLINEAR_INTERSECTION):o&&a?(this.intPt[0]=t,this.intPt[1]=e,oe.COLLINEAR_INTERSECTION):r&&o?(this.intPt[0]=n,this.intPt[1]=t,!n.equals(t)||s||a?oe.COLLINEAR_INTERSECTION:oe.POINT_INTERSECTION):r&&a?(this.intPt[0]=n,this.intPt[1]=e,!n.equals(e)||s||o?oe.COLLINEAR_INTERSECTION:oe.POINT_INTERSECTION):s&&o?(this.intPt[0]=i,this.intPt[1]=t,!i.equals(t)||r||a?oe.COLLINEAR_INTERSECTION:oe.POINT_INTERSECTION):s&&a?(this.intPt[0]=i,this.intPt[1]=e,!i.equals(e)||r||o?oe.COLLINEAR_INTERSECTION:oe.POINT_INTERSECTION):oe.NO_INTERSECTION},normalizeToEnvCentre:function(t,e,n,i,r){var s=t.x<e.x?t.x:e.x,o=t.y<e.y?t.y:e.y,a=t.x>e.x?t.x:e.x,u=t.y>e.y?t.y:e.y,l=n.x<i.x?n.x:i.x,h=n.y<i.y?n.y:i.y,c=n.x>i.x?n.x:i.x,f=n.y>i.y?n.y:i.y,g=s>l?s:l,d=a<c?a:c,p=o>h?o:h,v=u<f?u:f,m=(g+d)/2,y=(p+v)/2;r.x=m,r.y=y,t.x-=r.x,t.y-=r.y,e.x-=r.x,e.y-=r.y,n.x-=r.x,n.y-=r.y,i.x-=r.x,i.y-=r.y},computeIntersect:function(t,e,n,i){if(this._isProper=!1,!C.intersects(t,e,n,i))return oe.NO_INTERSECTION;var r=he.orientationIndex(t,e,n),s=he.orientationIndex(t,e,i);if(r>0&&s>0||r<0&&s<0)return oe.NO_INTERSECTION;var o=he.orientationIndex(n,i,t),a=he.orientationIndex(n,i,e);if(o>0&&a>0||o<0&&a<0)return oe.NO_INTERSECTION;var u=0===r&&0===s&&0===o&&0===a;return u?this.computeCollinearIntersection(t,e,n,i):(0===r||0===s||0===o||0===a?(this._isProper=!1,t.equals2D(n)||t.equals2D(i)?this.intPt[0]=t:e.equals2D(n)||e.equals2D(i)?this.intPt[0]=e:0===r?this.intPt[0]=new g(n):0===s?this.intPt[0]=new g(i):0===o?this.intPt[0]=new g(t):0===a&&(this.intPt[0]=new g(e))):(this._isProper=!0,this.intPt[0]=this.intersection(t,e,n,i)),oe.POINT_INTERSECTION)},interfaces_:function(){return[]},getClass:function(){return ae}}),ae.nearestEndpoint=function(t,e,n,i){var r=t,s=he.distancePointLine(t,n,i),o=he.distancePointLine(e,n,i);return o<s&&(s=o,r=e),o=he.distancePointLine(n,t,e),o<s&&(s=o,r=n),o=he.distancePointLine(i,t,e),o<s&&(s=o,r=i),r},e(ue.prototype,{interfaces_:function(){return[]},getClass:function(){return ue}}),ue.orientationIndex=function(t,e,n){var i=e.x-t.x,r=e.y-t.y,s=n.x-e.x,o=n.y-e.y;return ue.signOfDet2x2(i,r,s,o)},ue.signOfDet2x2=function(t,e,n,i){var r=null,s=null,o=null,a=0;if(r=1,0===t||0===i)return 0===e||0===n?0:e>0?n>0?-r:r:n>0?r:-r;if(0===e||0===n)return i>0?t>0?r:-r:t>0?-r:r;if(0<e?0<i?e<=i||(r=-r,s=t,t=n,n=s,s=e,e=i,i=s):e<=-i?(r=-r,n=-n,i=-i):(s=t,t=-n,n=s,s=e,e=-i,i=s):0<i?-e<=i?(r=-r,t=-t,e=-e):(s=-t,t=n,n=s,s=-e,e=i,i=s):e>=i?(t=-t,e=-e,n=-n,i=-i):(r=-r,s=-t,t=-n,n=s,s=-e,e=-i,i=s),0<t){if(!(0<n))return r;if(!(t<=n))return r}else{if(0<n)return-r;if(!(t>=n))return-r;r=-r,t=-t,n=-n}for(;;){if(a+=1,o=Math.floor(n/t),n-=o*t,i-=o*e,i<0)return-r;if(i>e)return r;if(t>n+n){if(e<i+i)return r}else{if(e>i+i)return-r;n=t-n,i=e-i,r=-r}if(0===i)return 0===n?0:-r;if(0===n)return r;if(o=Math.floor(t/n),t-=o*n,e-=o*i,e<0)return r;if(e>i)return-r;if(n>t+t){if(i<e+e)return-r}else{if(i>e+e)return r;t=n-t,e=i-e,r=-r}if(0===e)return 0===t?0:r;if(0===t)return-r}},e(le.prototype,{countSegment:function(t,e){if(t.x<this.p.x&&e.x<this.p.x)return null;if(this.p.x===e.x&&this.p.y===e.y)return this.isPointOnSegment=!0,null;if(t.y===this.p.y&&e.y===this.p.y){var n=t.x,i=e.x;return n>i&&(n=e.x,i=t.x),this.p.x>=n&&this.p.x<=i&&(this.isPointOnSegment=!0),null}if(t.y>this.p.y&&e.y<=this.p.y||e.y>this.p.y&&t.y<=this.p.y){var r=t.x-this.p.x,s=t.y-this.p.y,o=e.x-this.p.x,a=e.y-this.p.y,u=ue.signOfDet2x2(r,s,o,a);if(0===u)return this.isPointOnSegment=!0,null;a<s&&(u=-u),u>0&&this.crossingCount++}},isPointInPolygon:function(){return this.getLocation()!==L.EXTERIOR},getLocation:function(){return this.isPointOnSegment?L.BOUNDARY:this.crossingCount%2===1?L.INTERIOR:L.EXTERIOR},isOnSegment:function(){return this.isPointOnSegment},interfaces_:function(){return[]},getClass:function(){return le}}),le.locatePointInRing=function(){if(arguments[0]instanceof g&&R(arguments[1],D)){for(var t=arguments[0],e=arguments[1],n=new le(t),i=new g,r=new g,s=1;s<e.size();s++)if(e.getCoordinate(s,i),e.getCoordinate(s-1,r),n.countSegment(i,r),n.isOnSegment())return n.getLocation();return n.getLocation()}if(arguments[0]instanceof g&&arguments[1]instanceof Array){for(var o=arguments[0],a=arguments[1],n=new le(o),s=1;s<a.length;s++){var i=a[s],r=a[s-1];if(n.countSegment(i,r),n.isOnSegment())return n.getLocation()}return n.getLocation()}},e(he.prototype,{interfaces_:function(){return[]},getClass:function(){return he}}),he.orientationIndex=function(t,e,n){return M.orientationIndex(t,e,n)},he.signedArea=function(){if(arguments[0]instanceof Array){var t=arguments[0];if(t.length<3)return 0;for(var e=0,n=t[0].x,i=1;i<t.length-1;i++){var r=t[i].x-n,s=t[i+1].y,o=t[i-1].y;e+=r*(o-s)}return e/2}if(R(arguments[0],D)){var a=arguments[0],u=a.size();if(u<3)return 0;var l=new g,h=new g,c=new g;a.getCoordinate(0,h),a.getCoordinate(1,c);var n=h.x;c.x-=n;for(var e=0,i=1;i<u-1;i++)l.y=h.y,h.x=c.x,h.y=c.y,a.getCoordinate(i+1,c),c.x-=n,e+=h.x*(l.y-c.y);return e/2}},he.distanceLineLine=function(t,e,n,i){if(t.equals(e))return he.distancePointLine(t,n,i);if(n.equals(i))return he.distancePointLine(i,t,e);var r=!1;if(C.intersects(t,e,n,i)){var s=(e.x-t.x)*(i.y-n.y)-(e.y-t.y)*(i.x-n.x);if(0===s)r=!0;else{var o=(t.y-n.y)*(i.x-n.x)-(t.x-n.x)*(i.y-n.y),a=(t.y-n.y)*(e.x-t.x)-(t.x-n.x)*(e.y-t.y),u=a/s,l=o/s;(l<0||l>1||u<0||u>1)&&(r=!0)}}else r=!0;return r?T.min(he.distancePointLine(t,n,i),he.distancePointLine(e,n,i),he.distancePointLine(n,t,e),he.distancePointLine(i,t,e)):0},he.isPointInRing=function(t,e){return he.locatePointInRing(t,e)!==L.EXTERIOR},he.computeLength=function(t){var e=t.size();if(e<=1)return 0;var n=0,i=new g;t.getCoordinate(0,i);for(var r=i.x,s=i.y,o=1;o<e;o++){t.getCoordinate(o,i);var a=i.x,u=i.y,l=a-r,h=u-s;n+=Math.sqrt(l*l+h*h),r=a,s=u}return n},he.isCCW=function(t){var e=t.length-1;if(e<3)throw new i("Ring has fewer than 4 points, so orientation cannot be determined");for(var n=t[0],r=0,s=1;s<=e;s++){var o=t[s];o.y>n.y&&(n=o,r=s)}var a=r;do a-=1,a<0&&(a=e);while(t[a].equals2D(n)&&a!==r);var u=r;do u=(u+1)%e;while(t[u].equals2D(n)&&u!==r);var l=t[a],h=t[u];if(l.equals2D(n)||h.equals2D(n)||l.equals2D(h))return!1;var c=he.computeOrientation(l,n,h),f=!1;return f=0===c?l.x>h.x:c>0},he.locatePointInRing=function(t,e){return le.locatePointInRing(t,e)},he.distancePointLinePerpendicular=function(t,e,n){var i=(n.x-e.x)*(n.x-e.x)+(n.y-e.y)*(n.y-e.y),r=((e.y-t.y)*(n.x-e.x)-(e.x-t.x)*(n.y-e.y))/i;return Math.abs(r)*Math.sqrt(i)},he.computeOrientation=function(t,e,n){return he.orientationIndex(t,e,n)},he.distancePointLine=function(){if(2===arguments.length){var t=arguments[0],e=arguments[1];if(0===e.length)throw new i("Line array must contain at least one vertex");for(var n=t.distance(e[0]),r=0;r<e.length-1;r++){var s=he.distancePointLine(t,e[r],e[r+1]);s<n&&(n=s)}return n}if(3===arguments.length){var o=arguments[0],a=arguments[1],u=arguments[2];if(a.x===u.x&&a.y===u.y)return o.distance(a);var l=(u.x-a.x)*(u.x-a.x)+(u.y-a.y)*(u.y-a.y),h=((o.x-a.x)*(u.x-a.x)+(o.y-a.y)*(u.y-a.y))/l;if(h<=0)return o.distance(a);if(h>=1)return o.distance(u);var c=((a.y-o.y)*(u.x-a.x)-(a.x-o.x)*(u.y-a.y))/l;return Math.abs(c)*Math.sqrt(l)}},he.isOnLine=function(t,e){for(var n=new ae,i=1;i<e.length;i++){var r=e[i-1],s=e[i];if(n.computeIntersection(t,r,s),n.hasIntersection())return!0}return!1},he.CLOCKWISE=-1,he.RIGHT=he.CLOCKWISE,he.COUNTERCLOCKWISE=1,he.LEFT=he.COUNTERCLOCKWISE,he.COLLINEAR=0,he.STRAIGHT=he.COLLINEAR,e(ce.prototype,{minX:function(){return Math.min(this.p0.x,this.p1.x)},orientationIndex:function(){if(arguments[0]instanceof ce){var t=arguments[0],e=he.orientationIndex(this.p0,this.p1,t.p0),n=he.orientationIndex(this.p0,this.p1,t.p1);return e>=0&&n>=0?Math.max(e,n):e<=0&&n<=0?Math.max(e,n):0}if(arguments[0]instanceof g){var i=arguments[0];return he.orientationIndex(this.p0,this.p1,i)}},toGeometry:function(t){return t.createLineString([this.p0,this.p1])},isVertical:function(){return this.p0.x===this.p1.x},equals:function(t){if(!(t instanceof ce))return!1;var e=t;return this.p0.equals(e.p0)&&this.p1.equals(e.p1)},intersection:function(t){var e=new ae;return e.computeIntersection(this.p0,this.p1,t.p0,t.p1),e.hasIntersection()?e.getIntersection(0):null},project:function(){if(arguments[0]instanceof g){var t=arguments[0];if(t.equals(this.p0)||t.equals(this.p1))return new g(t);var e=this.projectionFactor(t),n=new g;return n.x=this.p0.x+e*(this.p1.x-this.p0.x),n.y=this.p0.y+e*(this.p1.y-this.p0.y),n}if(arguments[0]instanceof ce){var i=arguments[0],r=this.projectionFactor(i.p0),s=this.projectionFactor(i.p1);if(r>=1&&s>=1)return null;if(r<=0&&s<=0)return null;var o=this.project(i.p0);r<0&&(o=this.p0),r>1&&(o=this.p1);var a=this.project(i.p1);return s<0&&(a=this.p0),s>1&&(a=this.p1),new ce(o,a)}},normalize:function(){this.p1.compareTo(this.p0)<0&&this.reverse()},angle:function(){return Math.atan2(this.p1.y-this.p0.y,this.p1.x-this.p0.x)},getCoordinate:function(t){return 0===t?this.p0:this.p1},distancePerpendicular:function(t){return he.distancePointLinePerpendicular(t,this.p0,this.p1)},minY:function(){return Math.min(this.p0.y,this.p1.y)},midPoint:function(){return ce.midPoint(this.p0,this.p1)},projectionFactor:function(t){if(t.equals(this.p0))return 0;if(t.equals(this.p1))return 1;var e=this.p1.x-this.p0.x,n=this.p1.y-this.p0.y,i=e*e+n*n;if(i<=0)return r.NaN;var s=((t.x-this.p0.x)*e+(t.y-this.p0.y)*n)/i;return s},closestPoints:function(t){var e=this.intersection(t);if(null!==e)return[e,e];var n=new Array(2).fill(null),i=r.MAX_VALUE,s=null,o=this.closestPoint(t.p0);i=o.distance(t.p0),n[0]=o,n[1]=t.p0;var a=this.closestPoint(t.p1);s=a.distance(t.p1),s<i&&(i=s,n[0]=a,n[1]=t.p1);var u=t.closestPoint(this.p0);s=u.distance(this.p0),s<i&&(i=s,n[0]=this.p0,n[1]=u);var l=t.closestPoint(this.p1);return s=l.distance(this.p1),s<i&&(i=s,n[0]=this.p1,n[1]=l),n},closestPoint:function(t){var e=this.projectionFactor(t);if(e>0&&e<1)return this.project(t);var n=this.p0.distance(t),i=this.p1.distance(t);return n<i?this.p0:this.p1},maxX:function(){return Math.max(this.p0.x,this.p1.x)},getLength:function(){return this.p0.distance(this.p1)},compareTo:function(t){var e=t,n=this.p0.compareTo(e.p0);return 0!==n?n:this.p1.compareTo(e.p1)},reverse:function(){var t=this.p0;this.p0=this.p1,this.p1=t},equalsTopo:function(t){return this.p0.equals(t.p0)&&this.p1.equals(t.p1)||this.p0.equals(t.p1)&&this.p1.equals(t.p0)},lineIntersection:function(t){try{var e=F.intersection(this.p0,this.p1,t.p0,t.p1);return e}catch(t){if(!(t instanceof w))throw t}finally{}return null},maxY:function(){return Math.max(this.p0.y,this.p1.y)},pointAlongOffset:function(t,e){var n=this.p0.x+t*(this.p1.x-this.p0.x),i=this.p0.y+t*(this.p1.y-this.p0.y),r=this.p1.x-this.p0.x,s=this.p1.y-this.p0.y,o=Math.sqrt(r*r+s*s),a=0,u=0;if(0!==e){if(o<=0)throw new IllegalStateException("Cannot compute offset from zero-length line segment");a=e*r/o,u=e*s/o}var l=n-u,h=i+a,c=new g(l,h);return c},setCoordinates:function(){if(1===arguments.length){var t=arguments[0];this.setCoordinates(t.p0,t.p1)}else if(2===arguments.length){var e=arguments[0],n=arguments[1];this.p0.x=e.x,this.p0.y=e.y,this.p1.x=n.x,this.p1.y=n.y}},segmentFraction:function(t){var e=this.projectionFactor(t);return e<0?e=0:(e>1||r.isNaN(e))&&(e=1),e},toString:function(){return"LINESTRING( "+this.p0.x+" "+this.p0.y+", "+this.p1.x+" "+this.p1.y+")"},isHorizontal:function(){return this.p0.y===this.p1.y},distance:function(){if(arguments[0]instanceof ce){var t=arguments[0];return he.distanceLineLine(this.p0,this.p1,t.p0,t.p1)}if(arguments[0]instanceof g){var e=arguments[0];return he.distancePointLine(e,this.p0,this.p1)}},pointAlong:function(t){var e=new g;return e.x=this.p0.x+t*(this.p1.x-this.p0.x),e.y=this.p0.y+t*(this.p1.y-this.p0.y),e},hashCode:function(){var t=java.lang.Double.doubleToLongBits(this.p0.x);t^=31*java.lang.Double.doubleToLongBits(this.p0.y);var e=Math.trunc(t)^Math.trunc(t>>32),n=java.lang.Double.doubleToLongBits(this.p1.x);n^=31*java.lang.Double.doubleToLongBits(this.p1.y);var i=Math.trunc(n)^Math.trunc(n>>32);return e^i},interfaces_:function(){return[s,u]},getClass:function(){return ce}}),ce.midPoint=function(t,e){return new g((t.x+e.x)/2,(t.y+e.y)/2)},ce.serialVersionUID=0x2d2172135f411c00,e(fe.prototype,{isIntersects:function(){return!this.isDisjoint()},isCovers:function(){var t=fe.isTrue(this.matrix[L.INTERIOR][L.INTERIOR])||fe.isTrue(this.matrix[L.INTERIOR][L.BOUNDARY])||fe.isTrue(this.matrix[L.BOUNDARY][L.INTERIOR])||fe.isTrue(this.matrix[L.BOUNDARY][L.BOUNDARY]);return t&&this.matrix[L.EXTERIOR][L.INTERIOR]===lt.FALSE&&this.matrix[L.EXTERIOR][L.BOUNDARY]===lt.FALSE},isCoveredBy:function(){var t=fe.isTrue(this.matrix[L.INTERIOR][L.INTERIOR])||fe.isTrue(this.matrix[L.INTERIOR][L.BOUNDARY])||fe.isTrue(this.matrix[L.BOUNDARY][L.INTERIOR])||fe.isTrue(this.matrix[L.BOUNDARY][L.BOUNDARY]);return t&&this.matrix[L.INTERIOR][L.EXTERIOR]===lt.FALSE&&this.matrix[L.BOUNDARY][L.EXTERIOR]===lt.FALSE},set:function(){if(1===arguments.length)for(var t=arguments[0],e=0;e<t.length;e++){var n=Math.trunc(e/3),i=e%3;this.matrix[n][i]=lt.toDimensionValue(t.charAt(e))}else if(3===arguments.length){var r=arguments[0],s=arguments[1],o=arguments[2];this.matrix[r][s]=o}},isContains:function(){return fe.isTrue(this.matrix[L.INTERIOR][L.INTERIOR])&&this.matrix[L.EXTERIOR][L.INTERIOR]===lt.FALSE&&this.matrix[L.EXTERIOR][L.BOUNDARY]===lt.FALSE},setAtLeast:function(){if(1===arguments.length)for(var t=arguments[0],e=0;e<t.length;e++){var n=Math.trunc(e/3),i=e%3;this.setAtLeast(n,i,lt.toDimensionValue(t.charAt(e)))}else if(3===arguments.length){var r=arguments[0],s=arguments[1],o=arguments[2];this.matrix[r][s]<o&&(this.matrix[r][s]=o)}},setAtLeastIfValid:function(t,e,n){t>=0&&e>=0&&this.setAtLeast(t,e,n)},isWithin:function(){return fe.isTrue(this.matrix[L.INTERIOR][L.INTERIOR])&&this.matrix[L.INTERIOR][L.EXTERIOR]===lt.FALSE&&this.matrix[L.BOUNDARY][L.EXTERIOR]===lt.FALSE},isTouches:function(t,e){return t>e?this.isTouches(e,t):(t===lt.A&&e===lt.A||t===lt.L&&e===lt.L||t===lt.L&&e===lt.A||t===lt.P&&e===lt.A||t===lt.P&&e===lt.L)&&(this.matrix[L.INTERIOR][L.INTERIOR]===lt.FALSE&&(fe.isTrue(this.matrix[L.INTERIOR][L.BOUNDARY])||fe.isTrue(this.matrix[L.BOUNDARY][L.INTERIOR])||fe.isTrue(this.matrix[L.BOUNDARY][L.BOUNDARY])))},isOverlaps:function(t,e){return t===lt.P&&e===lt.P||t===lt.A&&e===lt.A?fe.isTrue(this.matrix[L.INTERIOR][L.INTERIOR])&&fe.isTrue(this.matrix[L.INTERIOR][L.EXTERIOR])&&fe.isTrue(this.matrix[L.EXTERIOR][L.INTERIOR]):t===lt.L&&e===lt.L&&(1===this.matrix[L.INTERIOR][L.INTERIOR]&&fe.isTrue(this.matrix[L.INTERIOR][L.EXTERIOR])&&fe.isTrue(this.matrix[L.EXTERIOR][L.INTERIOR]))},isEquals:function(t,e){return t===e&&(fe.isTrue(this.matrix[L.INTERIOR][L.INTERIOR])&&this.matrix[L.INTERIOR][L.EXTERIOR]===lt.FALSE&&this.matrix[L.BOUNDARY][L.EXTERIOR]===lt.FALSE&&this.matrix[L.EXTERIOR][L.INTERIOR]===lt.FALSE&&this.matrix[L.EXTERIOR][L.BOUNDARY]===lt.FALSE)},toString:function(){for(var t=new P("123456789"),e=0;e<3;e++)for(var n=0;n<3;n++)t.setCharAt(3*e+n,lt.toDimensionSymbol(this.matrix[e][n]));return t.toString()},setAll:function(t){for(var e=0;e<3;e++)for(var n=0;n<3;n++)this.matrix[e][n]=t},get:function(t,e){return this.matrix[t][e]},transpose:function(){var t=this.matrix[1][0];return this.matrix[1][0]=this.matrix[0][1],this.matrix[0][1]=t,t=this.matrix[2][0],this.matrix[2][0]=this.matrix[0][2],this.matrix[0][2]=t,t=this.matrix[2][1],this.matrix[2][1]=this.matrix[1][2],this.matrix[1][2]=t,this},matches:function(t){if(9!==t.length)throw new i("Should be length 9: "+t);for(var e=0;e<3;e++)for(var n=0;n<3;n++)if(!fe.matches(this.matrix[e][n],t.charAt(3*e+n)))return!1;return!0},add:function(t){for(var e=0;e<3;e++)for(var n=0;n<3;n++)this.setAtLeast(e,n,t.get(e,n))},isDisjoint:function(){return this.matrix[L.INTERIOR][L.INTERIOR]===lt.FALSE&&this.matrix[L.INTERIOR][L.BOUNDARY]===lt.FALSE&&this.matrix[L.BOUNDARY][L.INTERIOR]===lt.FALSE&&this.matrix[L.BOUNDARY][L.BOUNDARY]===lt.FALSE},isCrosses:function(t,e){return t===lt.P&&e===lt.L||t===lt.P&&e===lt.A||t===lt.L&&e===lt.A?fe.isTrue(this.matrix[L.INTERIOR][L.INTERIOR])&&fe.isTrue(this.matrix[L.INTERIOR][L.EXTERIOR]):t===lt.L&&e===lt.P||t===lt.A&&e===lt.P||t===lt.A&&e===lt.L?fe.isTrue(this.matrix[L.INTERIOR][L.INTERIOR])&&fe.isTrue(this.matrix[L.EXTERIOR][L.INTERIOR]):t===lt.L&&e===lt.L&&0===this.matrix[L.INTERIOR][L.INTERIOR]},interfaces_:function(){return[o]},getClass:function(){return fe}}),fe.matches=function(){if(Number.isInteger(arguments[0])&&"string"==typeof arguments[1]){var t=arguments[0],e=arguments[1];return e===lt.SYM_DONTCARE||(e===lt.SYM_TRUE&&(t>=0||t===lt.TRUE)||(e===lt.SYM_FALSE&&t===lt.FALSE||(e===lt.SYM_P&&t===lt.P||(e===lt.SYM_L&&t===lt.L||e===lt.SYM_A&&t===lt.A))))}if("string"==typeof arguments[0]&&"string"==typeof arguments[1]){var n=arguments[0],i=arguments[1],r=new fe(n);return r.matches(i)}},fe.isTrue=function(t){return t>=0||t===lt.TRUE};var lo=Object.freeze({Coordinate:g,CoordinateList:N,Envelope:C,LineSegment:ce,GeometryFactory:ie,Geometry:B,Point:Lt,LineString:St,LinearRing:bt,Polygon:Tt,GeometryCollection:ft,MultiPoint:Pt,MultiLineString:gt,MultiPolygon:Ot,Dimension:lt,IntersectionMatrix:fe,PrecisionModel:ee});e(ge.prototype,{addPoint:function(t){this.ptCount+=1,this.ptCentSum.x+=t.x,this.ptCentSum.y+=t.y},setBasePoint:function(t){null===this.areaBasePt&&(this.areaBasePt=t)},addLineSegments:function(t){for(var e=0,n=0;n<t.length-1;n++){var i=t[n].distance(t[n+1]);if(0!==i){e+=i;var r=(t[n].x+t[n+1].x)/2;this.lineCentSum.x+=i*r;var s=(t[n].y+t[n+1].y)/2;this.lineCentSum.y+=i*s}}this.totalLength+=e,0===e&&t.length>0&&this.addPoint(t[0])},addHole:function(t){for(var e=he.isCCW(t),n=0;n<t.length-1;n++)this.addTriangle(this.areaBasePt,t[n],t[n+1],e);this.addLineSegments(t)},getCentroid:function(){var t=new g;if(Math.abs(this.areasum2)>0)t.x=this.cg3.x/3/this.areasum2,t.y=this.cg3.y/3/this.areasum2;else if(this.totalLength>0)t.x=this.lineCentSum.x/this.totalLength,t.y=this.lineCentSum.y/this.totalLength;else{if(!(this.ptCount>0))return null;t.x=this.ptCentSum.x/this.ptCount,t.y=this.ptCentSum.y/this.ptCount}return t},addShell:function(t){t.length>0&&this.setBasePoint(t[0]);for(var e=!he.isCCW(t),n=0;n<t.length-1;n++)this.addTriangle(this.areaBasePt,t[n],t[n+1],e);this.addLineSegments(t)},addTriangle:function(t,e,n,i){var r=i?1:-1;ge.centroid3(t,e,n,this.triangleCent3);var s=ge.area2(t,e,n);this.cg3.x+=r*s*this.triangleCent3.x,this.cg3.y+=r*s*this.triangleCent3.y,this.areasum2+=r*s},add:function(){if(arguments[0]instanceof Tt){var t=arguments[0];this.addShell(t.getExteriorRing().getCoordinates());for(var e=0;e<t.getNumInteriorRing();e++)this.addHole(t.getInteriorRingN(e).getCoordinates())}else if(arguments[0]instanceof B){var n=arguments[0];if(n.isEmpty())return null;if(n instanceof Lt)this.addPoint(n.getCoordinate());else if(n instanceof St)this.addLineSegments(n.getCoordinates());else if(n instanceof Tt){var i=n;this.add(i)}else if(n instanceof ft)for(var r=n,e=0;e<r.getNumGeometries();e++)this.add(r.getGeometryN(e))}},interfaces_:function(){return[]},getClass:function(){return ge}}),ge.area2=function(t,e,n){return(e.x-t.x)*(n.y-t.y)-(n.x-t.x)*(e.y-t.y)},ge.centroid3=function(t,e,n,i){return i.x=t.x+e.x+n.x,i.y=t.y+e.y+n.y,null},ge.getCentroid=function(t){var e=new ge(t);return e.getCentroid()},de.prototype=new Error,de.prototype.name="EmptyStackException",pe.prototype=new y,pe.prototype.add=function(t){return this.array_.push(t),!0},pe.prototype.get=function(t){if(t<0||t>=this.size())throw new IndexOutOfBoundsException;return this.array_[t]},pe.prototype.push=function(t){return this.array_.push(t),t},pe.prototype.pop=function(t){if(0===this.array_.length)throw new de;return this.array_.pop()},pe.prototype.peek=function(){if(0===this.array_.length)throw new de;return this.array_[this.array_.length-1]},pe.prototype.empty=function(){return 0===this.array_.length},pe.prototype.isEmpty=function(){return this.empty()},pe.prototype.search=function(t){return this.array_.indexOf(t)},pe.prototype.size=function(){return this.array_.length},pe.prototype.toArray=function(){for(var t=[],e=0,n=this.array_.length;e<n;e++)t.push(this.array_[e]);return t},e(ve.prototype,{filter:function(t){this.treeSet.contains(t)||(this.list.add(t),this.treeSet.add(t))},getCoordinates:function(){var t=new Array(this.list.size()).fill(null);return this.list.toArray(t)},interfaces_:function(){return[z]},getClass:function(){return ve}}),ve.filterCoordinates=function(t){for(var e=new ve,n=0;n<t.length;n++)e.filter(t[n]);return e.getCoordinates()},e(me.prototype,{preSort:function(t){for(var e=null,n=1;n<t.length;n++)(t[n].y<t[0].y||t[n].y===t[0].y&&t[n].x<t[0].x)&&(e=t[0],t[0]=t[n],t[n]=e);return ut.sort(t,1,t.length,new ye(t[0])),t},computeOctRing:function(t){var e=this.computeOctPts(t),n=new N;return n.add(e,!1),n.size()<3?null:(n.closeRing(),n.toCoordinateArray())},lineOrPolygon:function(t){if(t=this.cleanRing(t),3===t.length)return this.geomFactory.createLineString([t[0],t[1]]);var e=this.geomFactory.createLinearRing(t);return this.geomFactory.createPolygon(e,null)},cleanRing:function(t){f.equals(t[0],t[t.length-1]);for(var e=new I,n=null,i=0;i<=t.length-2;i++){var r=t[i],s=t[i+1];r.equals(s)||null!==n&&this.isBetween(n,r,s)||(e.add(r),n=r)}e.add(t[t.length-1]);var o=new Array(e.size()).fill(null);return e.toArray(o)},isBetween:function(t,e,n){if(0!==he.computeOrientation(t,e,n))return!1;if(t.x!==n.x){if(t.x<=e.x&&e.x<=n.x)return!0;if(n.x<=e.x&&e.x<=t.x)return!0}if(t.y!==n.y){if(t.y<=e.y&&e.y<=n.y)return!0;if(n.y<=e.y&&e.y<=t.y)return!0}return!1},reduce:function(t){var e=this.computeOctRing(t);if(null===e)return t;for(var n=new at,i=0;i<e.length;i++)n.add(e[i]);for(var i=0;i<t.length;i++)he.isPointInRing(t[i],e)||n.add(t[i]);var r=H.toCoordinateArray(n);return r.length<3?this.padArray3(r):r},getConvexHull:function(){if(0===this.inputPts.length)return this.geomFactory.createGeometryCollection(null);if(1===this.inputPts.length)return this.geomFactory.createPoint(this.inputPts[0]);if(2===this.inputPts.length)return this.geomFactory.createLineString(this.inputPts);var t=this.inputPts;this.inputPts.length>50&&(t=this.reduce(this.inputPts));var e=this.preSort(t),n=this.grahamScan(e),i=this.toCoordinateArray(n);return this.lineOrPolygon(i)},padArray3:function(t){for(var e=new Array(3).fill(null),n=0;n<e.length;n++)n<t.length?e[n]=t[n]:e[n]=t[0];return e},computeOctPts:function(t){for(var e=new Array(8).fill(null),n=0;n<e.length;n++)e[n]=t[0];for(var i=1;i<t.length;i++)t[i].x<e[0].x&&(e[0]=t[i]),t[i].x-t[i].y<e[1].x-e[1].y&&(e[1]=t[i]),t[i].y>e[2].y&&(e[2]=t[i]),t[i].x+t[i].y>e[3].x+e[3].y&&(e[3]=t[i]),t[i].x>e[4].x&&(e[4]=t[i]),t[i].x-t[i].y>e[5].x-e[5].y&&(e[5]=t[i]),t[i].y<e[6].y&&(e[6]=t[i]),t[i].x+t[i].y<e[7].x+e[7].y&&(e[7]=t[i]);return e},toCoordinateArray:function(t){for(var e=new Array(t.size()).fill(null),n=0;n<t.size();n++){var i=t.get(n);e[n]=i}return e},grahamScan:function(t){var e=null,n=new pe;e=n.push(t[0]),e=n.push(t[1]),e=n.push(t[2]);for(var i=3;i<t.length;i++){for(e=n.pop();!n.empty()&&he.computeOrientation(n.peek(),e,t[i])>0;)e=n.pop();e=n.push(e),e=n.push(t[i]);
}return e=n.push(t[0]),n},interfaces_:function(){return[]},getClass:function(){return me}}),me.extractCoordinates=function(t){var e=new ve;return t.apply(e),e.getCoordinates()},e(ye.prototype,{compare:function(t,e){var n=t,i=e;return ye.polarCompare(this.origin,n,i)},interfaces_:function(){return[a]},getClass:function(){return ye}}),ye.polarCompare=function(t,e,n){var i=e.x-t.x,r=e.y-t.y,s=n.x-t.x,o=n.y-t.y,a=he.computeOrientation(t,e,n);if(a===he.COUNTERCLOCKWISE)return 1;if(a===he.CLOCKWISE)return-1;var u=i*i+r*r,l=s*s+o*o;return u<l?-1:u>l?1:0},me.RadialComparator=ye,e(xe.prototype,{transformPoint:function(t,e){return this.factory.createPoint(this.transformCoordinates(t.getCoordinateSequence(),t))},transformPolygon:function(t,e){var n=!0,i=this.transformLinearRing(t.getExteriorRing(),t);null!==i&&i instanceof bt&&!i.isEmpty()||(n=!1);for(var r=new I,s=0;s<t.getNumInteriorRing();s++){var o=this.transformLinearRing(t.getInteriorRingN(s),t);null===o||o.isEmpty()||(o instanceof bt||(n=!1),r.add(o))}if(n)return this.factory.createPolygon(i,r.toArray([]));var a=new I;return null!==i&&a.add(i),a.addAll(r),this.factory.buildGeometry(a)},createCoordinateSequence:function(t){return this.factory.getCoordinateSequenceFactory().create(t)},getInputGeometry:function(){return this.inputGeom},transformMultiLineString:function(t,e){for(var n=new I,i=0;i<t.getNumGeometries();i++){var r=this.transformLineString(t.getGeometryN(i),t);null!==r&&(r.isEmpty()||n.add(r))}return this.factory.buildGeometry(n)},transformCoordinates:function(t,e){return this.copy(t)},transformLineString:function(t,e){return this.factory.createLineString(this.transformCoordinates(t.getCoordinateSequence(),t))},transformMultiPoint:function(t,e){for(var n=new I,i=0;i<t.getNumGeometries();i++){var r=this.transformPoint(t.getGeometryN(i),t);null!==r&&(r.isEmpty()||n.add(r))}return this.factory.buildGeometry(n)},transformMultiPolygon:function(t,e){for(var n=new I,i=0;i<t.getNumGeometries();i++){var r=this.transformPolygon(t.getGeometryN(i),t);null!==r&&(r.isEmpty()||n.add(r))}return this.factory.buildGeometry(n)},copy:function(t){return t.copy()},transformGeometryCollection:function(t,e){for(var n=new I,i=0;i<t.getNumGeometries();i++){var r=this.transform(t.getGeometryN(i));null!==r&&(this.pruneEmptyGeometry&&r.isEmpty()||n.add(r))}return this.preserveGeometryCollectionType?this.factory.createGeometryCollection(ie.toGeometryArray(n)):this.factory.buildGeometry(n)},transform:function(t){if(this.inputGeom=t,this.factory=t.getFactory(),t instanceof Lt)return this.transformPoint(t,null);if(t instanceof Pt)return this.transformMultiPoint(t,null);if(t instanceof bt)return this.transformLinearRing(t,null);if(t instanceof St)return this.transformLineString(t,null);if(t instanceof gt)return this.transformMultiLineString(t,null);if(t instanceof Tt)return this.transformPolygon(t,null);if(t instanceof Ot)return this.transformMultiPolygon(t,null);if(t instanceof ft)return this.transformGeometryCollection(t,null);throw new i("Unknown Geometry subtype: "+t.getClass().getName())},transformLinearRing:function(t,e){var n=this.transformCoordinates(t.getCoordinateSequence(),t);if(null===n)return this.factory.createLinearRing(null);var i=n.size();return i>0&&i<4&&!this.preserveType?this.factory.createLineString(n):this.factory.createLinearRing(n)},interfaces_:function(){return[]},getClass:function(){return xe}}),e(Ee.prototype,{snapVertices:function(t,e){for(var n=this._isClosed?t.size()-1:t.size(),i=0;i<n;i++){var r=t.get(i),s=this.findSnapForVertex(r,e);null!==s&&(t.set(i,new g(s)),0===i&&this._isClosed&&t.set(t.size()-1,new g(s)))}},findSnapForVertex:function(t,e){for(var n=0;n<e.length;n++){if(t.equals2D(e[n]))return null;if(t.distance(e[n])<this.snapTolerance)return e[n]}return null},snapTo:function(t){var e=new N(this.srcPts);this.snapVertices(e,t),this.snapSegments(e,t);var n=e.toCoordinateArray();return n},snapSegments:function(t,e){if(0===e.length)return null;var n=e.length;e[0].equals2D(e[e.length-1])&&(n=e.length-1);for(var i=0;i<n;i++){var r=e[i],s=this.findSegmentIndexToSnap(r,t);s>=0&&t.add(s+1,new g(r),!1)}},findSegmentIndexToSnap:function(t,e){for(var n=r.MAX_VALUE,i=-1,s=0;s<e.size()-1;s++){if(this.seg.p0=e.get(s),this.seg.p1=e.get(s+1),this.seg.p0.equals2D(t)||this.seg.p1.equals2D(t)){if(this.allowSnappingToSourceVertices)continue;return-1}var o=this.seg.distance(t);o<this.snapTolerance&&o<n&&(n=o,i=s)}return i},setAllowSnappingToSourceVertices:function(t){this.allowSnappingToSourceVertices=t},interfaces_:function(){return[]},getClass:function(){return Ee}}),Ee.isClosed=function(t){return!(t.length<=1)&&t[0].equals2D(t[t.length-1])},e(Ie.prototype,{snapTo:function(t,e){var n=this.extractTargetCoordinates(t),i=new Ne(e,n);return i.transform(this.srcGeom)},snapToSelf:function(t,e){var n=this.extractTargetCoordinates(this.srcGeom),i=new Ne(t,n,(!0)),r=i.transform(this.srcGeom),s=r;return e&&R(s,Rt)&&(s=r.buffer(0)),s},computeSnapTolerance:function(t){var e=this.computeMinimumSegmentLength(t),n=e/10;return n},extractTargetCoordinates:function(t){for(var e=new at,n=t.getCoordinates(),i=0;i<n.length;i++)e.add(n[i]);return e.toArray(new Array(0).fill(null))},computeMinimumSegmentLength:function(t){for(var e=r.MAX_VALUE,n=0;n<t.length-1;n++){var i=t[n].distance(t[n+1]);i<e&&(e=i)}return e},interfaces_:function(){return[]},getClass:function(){return Ie}}),Ie.snap=function(t,e,n){var i=new Array(2).fill(null),r=new Ie(t);i[0]=r.snapTo(e,n);var s=new Ie(e);return i[1]=s.snapTo(i[0],n),i},Ie.computeOverlaySnapTolerance=function(){if(1===arguments.length){var t=arguments[0],e=Ie.computeSizeBasedSnapTolerance(t),n=t.getPrecisionModel();if(n.getType()===ee.FIXED){var i=1/n.getScale()*2/1.415;i>e&&(e=i)}return e}if(2===arguments.length){var r=arguments[0],s=arguments[1];return Math.min(Ie.computeOverlaySnapTolerance(r),Ie.computeOverlaySnapTolerance(s))}},Ie.computeSizeBasedSnapTolerance=function(t){var e=t.getEnvelopeInternal(),n=Math.min(e.getHeight(),e.getWidth()),i=n*Ie.SNAP_PRECISION_FACTOR;return i},Ie.snapToSelf=function(t,e,n){var i=new Ie(t);return i.snapToSelf(e,n)},Ie.SNAP_PRECISION_FACTOR=1e-9,h(Ne,xe),e(Ne.prototype,{snapLine:function(t,e){var n=new Ee(t,this.snapTolerance);return n.setAllowSnappingToSourceVertices(this.isSelfSnap),n.snapTo(e)},transformCoordinates:function(t,e){var n=t.toCoordinateArray(),i=this.snapLine(n,this.snapPts);return this.factory.getCoordinateSequenceFactory().create(i)},interfaces_:function(){return[]},getClass:function(){return Ne}}),e(Ce.prototype,{getCommon:function(){return r.longBitsToDouble(this.commonBits)},add:function(t){var e=r.doubleToLongBits(t);if(this.isFirst)return this.commonBits=e,this.commonSignExp=Ce.signExpBits(this.commonBits),this.isFirst=!1,null;var n=Ce.signExpBits(e);return n!==this.commonSignExp?(this.commonBits=0,null):(this.commonMantissaBitsCount=Ce.numCommonMostSigMantissaBits(this.commonBits,e),void(this.commonBits=Ce.zeroLowerBits(this.commonBits,64-(12+this.commonMantissaBitsCount))))},toString:function(){if(1===arguments.length){var t=arguments[0],e=r.longBitsToDouble(t),n=Long.toBinaryString(t),i="0000000000000000000000000000000000000000000000000000000000000000"+n,s=i.substring(i.length-64),o=s.substring(0,1)+" "+s.substring(1,12)+"(exp) "+s.substring(12)+" [ "+e+" ]";return o}},interfaces_:function(){return[]},getClass:function(){return Ce}}),Ce.getBit=function(t,e){var n=1<<e;return 0!==(t&n)?1:0},Ce.signExpBits=function(t){return t>>52},Ce.zeroLowerBits=function(t,e){var n=(1<<e)-1,i=~n,r=t&i;return r},Ce.numCommonMostSigMantissaBits=function(t,e){for(var n=0,i=52;i>=0;i--){if(Ce.getBit(t,i)!==Ce.getBit(e,i))return n;n++}return 52},e(Se.prototype,{addCommonBits:function(t){var e=new Le(this.commonCoord);t.apply(e),t.geometryChanged()},removeCommonBits:function(t){if(0===this.commonCoord.x&&0===this.commonCoord.y)return t;var e=new g(this.commonCoord);e.x=-e.x,e.y=-e.y;var n=new Le(e);return t.apply(n),t.geometryChanged(),t},getCommonCoordinate:function(){return this.commonCoord},add:function(t){t.apply(this.ccFilter),this.commonCoord=this.ccFilter.getCommonCoordinate()},interfaces_:function(){return[]},getClass:function(){return Se}}),e(we.prototype,{filter:function(t){this.commonBitsX.add(t.x),this.commonBitsY.add(t.y)},getCommonCoordinate:function(){return new g(this.commonBitsX.getCommon(),this.commonBitsY.getCommon())},interfaces_:function(){return[z]},getClass:function(){return we}}),e(Le.prototype,{filter:function(t,e){var n=t.getOrdinate(e,0)+this.trans.x,i=t.getOrdinate(e,1)+this.trans.y;t.setOrdinate(e,0,n),t.setOrdinate(e,1,i)},isDone:function(){return!1},isGeometryChanged:function(){return!0},interfaces_:function(){return[ct]},getClass:function(){return Le}}),Se.CommonCoordinateFilter=we,Se.Translater=Le,e(Re.prototype,{next:function(){if(this.atStart)return this.atStart=!1,Re.isAtomic(this.parent)&&this.index++,this.parent;if(null!==this.subcollectionIterator){if(this.subcollectionIterator.hasNext())return this.subcollectionIterator.next();this.subcollectionIterator=null}if(this.index>=this.max)throw new x;var t=this.parent.getGeometryN(this.index++);return t instanceof ft?(this.subcollectionIterator=new Re(t),this.subcollectionIterator.next()):t},remove:function(){throw new UnsupportedOperationException(this.getClass().getName())},hasNext:function(){if(this.atStart)return!0;if(null!==this.subcollectionIterator){if(this.subcollectionIterator.hasNext())return!0;this.subcollectionIterator=null}return!(this.index>=this.max)},interfaces_:function(){return[p]},getClass:function(){return Re}}),Re.isAtomic=function(t){return!(t instanceof ft)},e(Te.prototype,{locateInternal:function(){if(arguments[0]instanceof g&&arguments[1]instanceof Tt){var t=arguments[0],e=arguments[1];if(e.isEmpty())return L.EXTERIOR;var n=e.getExteriorRing(),i=this.locateInPolygonRing(t,n);if(i===L.EXTERIOR)return L.EXTERIOR;if(i===L.BOUNDARY)return L.BOUNDARY;for(var r=0;r<e.getNumInteriorRing();r++){var s=e.getInteriorRingN(r),o=this.locateInPolygonRing(t,s);if(o===L.INTERIOR)return L.EXTERIOR;if(o===L.BOUNDARY)return L.BOUNDARY}return L.INTERIOR}if(arguments[0]instanceof g&&arguments[1]instanceof St){var a=arguments[0],u=arguments[1];if(!u.getEnvelopeInternal().intersects(a))return L.EXTERIOR;var l=u.getCoordinates();return u.isClosed()||!a.equals(l[0])&&!a.equals(l[l.length-1])?he.isOnLine(a,l)?L.INTERIOR:L.EXTERIOR:L.BOUNDARY}if(arguments[0]instanceof g&&arguments[1]instanceof Lt){var h=arguments[0],c=arguments[1],f=c.getCoordinate();return f.equals2D(h)?L.INTERIOR:L.EXTERIOR}},locateInPolygonRing:function(t,e){return e.getEnvelopeInternal().intersects(t)?he.locatePointInRing(t,e.getCoordinates()):L.EXTERIOR},intersects:function(t,e){return this.locate(t,e)!==L.EXTERIOR},updateLocationInfo:function(t){t===L.INTERIOR&&(this.isIn=!0),t===L.BOUNDARY&&this.numBoundaries++},computeLocation:function(t,e){if(e instanceof Lt&&this.updateLocationInfo(this.locateInternal(t,e)),e instanceof St)this.updateLocationInfo(this.locateInternal(t,e));else if(e instanceof Tt)this.updateLocationInfo(this.locateInternal(t,e));else if(e instanceof gt)for(var n=e,i=0;i<n.getNumGeometries();i++){var r=n.getGeometryN(i);this.updateLocationInfo(this.locateInternal(t,r))}else if(e instanceof Ot)for(var s=e,i=0;i<s.getNumGeometries();i++){var o=s.getGeometryN(i);this.updateLocationInfo(this.locateInternal(t,o))}else if(e instanceof ft)for(var a=new Re(e);a.hasNext();){var u=a.next();u!==e&&this.computeLocation(t,u)}},locate:function(t,e){return e.isEmpty()?L.EXTERIOR:e instanceof St?this.locateInternal(t,e):e instanceof Tt?this.locateInternal(t,e):(this.isIn=!1,this.numBoundaries=0,this.computeLocation(t,e),this.boundaryRule.isInBoundary(this.numBoundaries)?L.BOUNDARY:this.numBoundaries>0||this.isIn?L.INTERIOR:L.EXTERIOR)},interfaces_:function(){return[]},getClass:function(){return Te}}),e(Pe.prototype,{interfaces_:function(){return[]},getClass:function(){return Pe}}),Pe.octant=function(){if("number"==typeof arguments[0]&&"number"==typeof arguments[1]){var t=arguments[0],e=arguments[1];if(0===t&&0===e)throw new i("Cannot compute the octant for point ( "+t+", "+e+" )");var n=Math.abs(t),r=Math.abs(e);return t>=0?e>=0?n>=r?0:1:n>=r?7:6:e>=0?n>=r?3:2:n>=r?4:5}if(arguments[0]instanceof g&&arguments[1]instanceof g){var s=arguments[0],o=arguments[1],a=o.x-s.x,u=o.y-s.y;if(0===a&&0===u)throw new i("Cannot compute the octant for two identical points "+s);return 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this.bounds},interfaces_:function(){return[_e,u]},getClass:function(){return Me}}),e(De.prototype,{poll:function(){if(this.isEmpty())return null;var t=this.items.get(1);return this.items.set(1,this.items.get(this._size)),this._size-=1,this.reorder(1),t},size:function(){return this._size},reorder:function(t){for(var e=null,n=this.items.get(t);2*t<=this._size&&(e=2*t,e!==this._size&&this.items.get(e+1).compareTo(this.items.get(e))<0&&e++,this.items.get(e).compareTo(n)<0);t=e)this.items.set(t,this.items.get(e));this.items.set(t,n)},clear:function(){this._size=0,this.items.clear()},isEmpty:function(){return 0===this._size},add:function(t){this.items.add(null),this._size+=1;var e=this._size;for(this.items.set(0,t);t.compareTo(this.items.get(Math.trunc(e/2)))<0;e/=2)this.items.set(e,this.items.get(Math.trunc(e/2)));this.items.set(e,t)},interfaces_:function(){return[]},getClass:function(){return De}}),e(Ae.prototype,{visitItem:function(t){},interfaces_:function(){return[]},getClass:function(){return Ae}}),e(Fe.prototype,{insert:function(t,e){},remove:function(t,e){},query:function(){if(1===arguments.length){arguments[0]}else if(2===arguments.length){arguments[0],arguments[1]}},interfaces_:function(){return[]},getClass:function(){return Fe}}),e(Ge.prototype,{getLevel:function(){return this.level},size:function(){return this.childBoundables.size()},getChildBoundables:function(){return this.childBoundables},addChildBoundable:function(t){f.isTrue(null===this.bounds),this.childBoundables.add(t)},isEmpty:function(){return this.childBoundables.isEmpty()},getBounds:function(){return null===this.bounds&&(this.bounds=this.computeBounds()),this.bounds},interfaces_:function(){return[_e,u]},getClass:function(){return Ge}}),Ge.serialVersionUID=0x5a1e55ec41369800;var ho={reverseOrder:function(){return{compare:function(t,e){return e.compareTo(t)}}},min:function(t){return ho.sort(t),t.get(0)},sort:function(t,e){var n=t.toArray();e?ut.sort(n,e):ut.sort(n);for(var i=t.iterator(),r=0,s=n.length;r<s;r++)i.next(),i.set(n[r])},singletonList:function(t){var e=new I;return e.add(t),e}};e(qe.prototype,{expandToQueue:function(t,e){var n=qe.isComposite(this.boundable1),r=qe.isComposite(this.boundable2);if(n&&r)return qe.area(this.boundable1)>qe.area(this.boundable2)?(this.expand(this.boundable1,this.boundable2,t,e),null):(this.expand(this.boundable2,this.boundable1,t,e),null);if(n)return this.expand(this.boundable1,this.boundable2,t,e),null;if(r)return this.expand(this.boundable2,this.boundable1,t,e),null;throw new i("neither boundable is composite")},isLeaves:function(){return!(qe.isComposite(this.boundable1)||qe.isComposite(this.boundable2))},compareTo:function(t){var e=t;return this._distance<e._distance?-1:this._distance>e._distance?1:0},expand:function(t,e,n,i){for(var r=t.getChildBoundables(),s=r.iterator();s.hasNext();){var o=s.next(),a=new qe(o,e,this.itemDistance);a.getDistance()<i&&n.add(a)}},getBoundable:function(t){return 0===t?this.boundable1:this.boundable2},getDistance:function(){return this._distance},distance:function(){return this.isLeaves()?this.itemDistance.distance(this.boundable1,this.boundable2):this.boundable1.getBounds().distance(this.boundable2.getBounds())},interfaces_:function(){return[s]},getClass:function(){return qe}}),qe.area=function(t){return t.getBounds().getArea()},qe.isComposite=function(t){return t instanceof Ge},e(Be.prototype,{getNodeCapacity:function(){return this.nodeCapacity},lastNode:function(t){return t.get(t.size()-1)},size:function t(){if(0===arguments.length)return this.isEmpty()?0:(this.build(),this.size(this.root));if(1===arguments.length){for(var e=arguments[0],t=0,n=e.getChildBoundables().iterator();n.hasNext();){var i=n.next();i instanceof Ge?t+=this.size(i):i instanceof Me&&(t+=1)}return t}},removeItem:function(t,e){for(var n=null,i=t.getChildBoundables().iterator();i.hasNext();){var r=i.next();r instanceof Me&&r.getItem()===e&&(n=r)}return null!==n&&(t.getChildBoundables().remove(n),!0)},itemsTree:function(){if(0===arguments.length){this.build();var t=this.itemsTree(this.root);return null===t?new I:t}if(1===arguments.length){for(var e=arguments[0],n=new I,i=e.getChildBoundables().iterator();i.hasNext();){var r=i.next();if(r instanceof Ge){var s=this.itemsTree(r);null!==s&&n.add(s)}else r instanceof Me?n.add(r.getItem()):f.shouldNeverReachHere()}return n.size()<=0?null:n}},insert:function(t,e){f.isTrue(!this.built,"Cannot insert items into an STR packed R-tree after it has been built."),this.itemBoundables.add(new Me(t,e))},boundablesAtLevel:function(){if(1===arguments.length){var t=arguments[0],e=new I;return this.boundablesAtLevel(t,this.root,e),e}if(3===arguments.length){var n=arguments[0],i=arguments[1],r=arguments[2];if(f.isTrue(n>-2),i.getLevel()===n)return r.add(i),null;for(var s=i.getChildBoundables().iterator();s.hasNext();){var o=s.next();o instanceof Ge?this.boundablesAtLevel(n,o,r):(f.isTrue(o instanceof Me),n===-1&&r.add(o))}return null}},query:function(){if(1===arguments.length){var t=arguments[0];this.build();var e=new I;return this.isEmpty()?e:(this.getIntersectsOp().intersects(this.root.getBounds(),t)&&this.query(t,this.root,e),e)}if(2===arguments.length){var n=arguments[0],i=arguments[1];if(this.build(),this.isEmpty())return null;this.getIntersectsOp().intersects(this.root.getBounds(),n)&&this.query(n,this.root,i)}else if(3===arguments.length)if(R(arguments[2],Ae)&&arguments[0]instanceof Object&&arguments[1]instanceof Ge)for(var r=arguments[0],s=arguments[1],o=arguments[2],a=s.getChildBoundables(),u=0;u<a.size();u++){var l=a.get(u);this.getIntersectsOp().intersects(l.getBounds(),r)&&(l instanceof Ge?this.query(r,l,o):l instanceof Me?o.visitItem(l.getItem()):f.shouldNeverReachHere())}else if(R(arguments[2],y)&&arguments[0]instanceof Object&&arguments[1]instanceof Ge)for(var h=arguments[0],c=arguments[1],g=arguments[2],a=c.getChildBoundables(),u=0;u<a.size();u++){var l=a.get(u);this.getIntersectsOp().intersects(l.getBounds(),h)&&(l instanceof Ge?this.query(h,l,g):l instanceof Me?g.add(l.getItem()):f.shouldNeverReachHere())}},build:function(){return this.built?null:(this.root=this.itemBoundables.isEmpty()?this.createNode(0):this.createHigherLevels(this.itemBoundables,-1),this.itemBoundables=null,void(this.built=!0))},getRoot:function(){return this.build(),this.root},remove:function(){if(2===arguments.length){var t=arguments[0],e=arguments[1];return this.build(),!!this.getIntersectsOp().intersects(this.root.getBounds(),t)&&this.remove(t,this.root,e)}if(3===arguments.length){var n=arguments[0],i=arguments[1],r=arguments[2],s=this.removeItem(i,r);if(s)return!0;for(var o=null,a=i.getChildBoundables().iterator();a.hasNext();){var u=a.next();if(this.getIntersectsOp().intersects(u.getBounds(),n)&&u instanceof Ge&&(s=this.remove(n,u,r))){o=u;break}}return null!==o&&o.getChildBoundables().isEmpty()&&i.getChildBoundables().remove(o),s}},createHigherLevels:function(t,e){f.isTrue(!t.isEmpty());var n=this.createParentBoundables(t,e+1);return 1===n.size()?n.get(0):this.createHigherLevels(n,e+1)},depth:function(){if(0===arguments.length)return this.isEmpty()?0:(this.build(),this.depth(this.root));if(1===arguments.length){for(var t=arguments[0],e=0,n=t.getChildBoundables().iterator();n.hasNext();){var i=n.next();if(i instanceof Ge){var r=this.depth(i);r>e&&(e=r)}}return e+1}},createParentBoundables:function(t,e){f.isTrue(!t.isEmpty());var n=new I;n.add(this.createNode(e));var i=new I(t);ho.sort(i,this.getComparator());for(var r=i.iterator();r.hasNext();){var s=r.next();this.lastNode(n).getChildBoundables().size()===this.getNodeCapacity()&&n.add(this.createNode(e)),this.lastNode(n).addChildBoundable(s)}return n},isEmpty:function(){return this.built?this.root.isEmpty():this.itemBoundables.isEmpty()},interfaces_:function(){return[u]},getClass:function(){return Be}}),Be.compareDoubles=function(t,e){return t>e?1:t<e?-1:0},Be.IntersectsOp=ze,Be.serialVersionUID=-0x35ef64c82d4c5400,Be.DEFAULT_NODE_CAPACITY=10,e(Ve.prototype,{distance:function(t,e){},interfaces_:function(){return[]},getClass:function(){return Ve}}),h(ke,Be),e(ke.prototype,{createParentBoundablesFromVerticalSlices:function(t,e){f.isTrue(t.length>0);for(var n=new I,i=0;i<t.length;i++)n.addAll(this.createParentBoundablesFromVerticalSlice(t[i],e));return n},createNode:function(t){return new Ye(t)},size:function(){return 0===arguments.length?Be.prototype.size.call(this):Be.prototype.size.apply(this,arguments)},insert:function(){if(2!==arguments.length)return Be.prototype.insert.apply(this,arguments);var t=arguments[0],e=arguments[1];return t.isNull()?null:void Be.prototype.insert.call(this,t,e)},getIntersectsOp:function(){return ke.intersectsOp},verticalSlices:function(t,e){for(var n=Math.trunc(Math.ceil(t.size()/e)),i=new Array(e).fill(null),r=t.iterator(),s=0;s<e;s++){i[s]=new I;for(var o=0;r.hasNext()&&o<n;){var a=r.next();i[s].add(a),o++}}return i},query:function(){if(1===arguments.length){var t=arguments[0];return Be.prototype.query.call(this,t)}if(2===arguments.length){var e=arguments[0],n=arguments[1];Be.prototype.query.call(this,e,n)}else if(3===arguments.length)if(R(arguments[2],Ae)&&arguments[0]instanceof Object&&arguments[1]instanceof Ge){var i=arguments[0],r=arguments[1],s=arguments[2];Be.prototype.query.call(this,i,r,s)}else if(R(arguments[2],y)&&arguments[0]instanceof Object&&arguments[1]instanceof Ge){var o=arguments[0],a=arguments[1],u=arguments[2];Be.prototype.query.call(this,o,a,u)}},getComparator:function(){return ke.yComparator},createParentBoundablesFromVerticalSlice:function(t,e){return Be.prototype.createParentBoundables.call(this,t,e)},remove:function(){if(2===arguments.length){var t=arguments[0],e=arguments[1];return Be.prototype.remove.call(this,t,e)}return Be.prototype.remove.apply(this,arguments)},depth:function(){return 0===arguments.length?Be.prototype.depth.call(this):Be.prototype.depth.apply(this,arguments)},createParentBoundables:function(t,e){f.isTrue(!t.isEmpty());var n=Math.trunc(Math.ceil(t.size()/this.getNodeCapacity())),i=new I(t);ho.sort(i,ke.xComparator);var r=this.verticalSlices(i,Math.trunc(Math.ceil(Math.sqrt(n))));return this.createParentBoundablesFromVerticalSlices(r,e)},nearestNeighbour:function(){if(1===arguments.length){if(R(arguments[0],Ve)){var t=arguments[0],e=new qe(this.getRoot(),this.getRoot(),t);return this.nearestNeighbour(e)}if(arguments[0]instanceof qe){var n=arguments[0];return this.nearestNeighbour(n,r.POSITIVE_INFINITY)}}else if(2===arguments.length){if(arguments[0]instanceof ke&&R(arguments[1],Ve)){var i=arguments[0],s=arguments[1],e=new qe(this.getRoot(),i.getRoot(),s);return this.nearestNeighbour(e)}if(arguments[0]instanceof qe&&"number"==typeof arguments[1]){var o=arguments[0],a=arguments[1],u=a,l=null,h=new De;for(h.add(o);!h.isEmpty()&&u>0;){var c=h.poll(),f=c.getDistance();if(f>=u)break;c.isLeaves()?(u=f,l=c):c.expandToQueue(h,u)}return[l.getBoundable(0).getItem(),l.getBoundable(1).getItem()]}}else if(3===arguments.length){var g=arguments[0],d=arguments[1],p=arguments[2],v=new Me(g,d),e=new qe(this.getRoot(),v,p);return this.nearestNeighbour(e)[0]}},interfaces_:function(){return[Fe,u]},getClass:function(){return ke}}),ke.centreX=function(t){return ke.avg(t.getMinX(),t.getMaxX())},ke.avg=function(t,e){return(t+e)/2},ke.centreY=function(t){return ke.avg(t.getMinY(),t.getMaxY())},h(Ye,Ge),e(Ye.prototype,{computeBounds:function(){for(var t=null,e=this.getChildBoundables().iterator();e.hasNext();){var n=e.next();null===t?t=new C(n.getBounds()):t.expandToInclude(n.getBounds())}return t},interfaces_:function(){return[]},getClass:function(){return Ye}}),ke.STRtreeNode=Ye,ke.serialVersionUID=0x39920f7d5f261e0,ke.xComparator={interfaces_:function(){return[a]},compare:function(t,e){return Be.compareDoubles(ke.centreX(t.getBounds()),ke.centreX(e.getBounds()))}},ke.yComparator={interfaces_:function(){return[a]},compare:function(t,e){return Be.compareDoubles(ke.centreY(t.getBounds()),ke.centreY(e.getBounds()))}},ke.intersectsOp={interfaces_:function(){return[IntersectsOp]},intersects:function(t,e){return t.intersects(e)}},ke.DEFAULT_NODE_CAPACITY=10,e(Ue.prototype,{interfaces_:function(){return[]},getClass:function(){return Ue}}),Ue.relativeSign=function(t,e){return t<e?-1:t>e?1:0},Ue.compare=function(t,e,n){if(e.equals2D(n))return 0;var i=Ue.relativeSign(e.x,n.x),r=Ue.relativeSign(e.y,n.y);switch(t){case 0:return Ue.compareValue(i,r);case 1:return Ue.compareValue(r,i);case 2:return Ue.compareValue(r,-i);case 3:return Ue.compareValue(-i,r);case 4:return Ue.compareValue(-i,-r);case 5:return Ue.compareValue(-r,-i);case 6:return Ue.compareValue(-r,i);case 7:return Ue.compareValue(i,-r)}return f.shouldNeverReachHere("invalid octant value"),0},Ue.compareValue=function(t,e){return t<0?-1:t>0?1:e<0?-1:e>0?1:0},e(Xe.prototype,{getCoordinate:function(){return this.coord},print:function(t){t.print(this.coord),t.print(" seg # = "+this.segmentIndex)},compareTo:function(t){var e=t;return this.segmentIndex<e.segmentIndex?-1:this.segmentIndex>e.segmentIndex?1:this.coord.equals2D(e.coord)?0:Ue.compare(this.segmentOctant,this.coord,e.coord)},isEndPoint:function(t){return 0===this.segmentIndex&&!this._isInterior||this.segmentIndex===t},isInterior:function(){return this._isInterior},interfaces_:function(){return[s]},getClass:function(){return Xe}}),e(He.prototype,{getSplitCoordinates:function(){var t=new N;this.addEndpoints();for(var e=this.iterator(),n=e.next();e.hasNext();){var i=e.next();this.addEdgeCoordinates(n,i,t),n=i}return t.toCoordinateArray()},addCollapsedNodes:function(){var t=new I;this.findCollapsesFromInsertedNodes(t),this.findCollapsesFromExistingVertices(t);for(var e=t.iterator();e.hasNext();){var n=e.next().intValue();this.add(this.edge.getCoordinate(n),n)}},print:function(t){t.println("Intersections:");for(var e=this.iterator();e.hasNext();){var n=e.next();n.print(t)}},findCollapsesFromExistingVertices:function(t){for(var e=0;e<this.edge.size()-2;e++){var n=this.edge.getCoordinate(e),i=(this.edge.getCoordinate(e+1),this.edge.getCoordinate(e+2));n.equals2D(i)&&t.add(new b(e+1))}},addEdgeCoordinates:function(t,e,n){var i=e.segmentIndex-t.segmentIndex+2,r=this.edge.getCoordinate(e.segmentIndex),s=e.isInterior()||!e.coord.equals2D(r);s||i--;n.add(new g(t.coord),!1);for(var o=t.segmentIndex+1;o<=e.segmentIndex;o++)n.add(this.edge.getCoordinate(o));s&&n.add(new g(e.coord))},iterator:function(){return this.nodeMap.values().iterator()},addSplitEdges:function(t){this.addEndpoints(),this.addCollapsedNodes();for(var e=this.iterator(),n=e.next();e.hasNext();){var i=e.next(),r=this.createSplitEdge(n,i);t.add(r),n=i}},findCollapseIndex:function(t,e,n){if(!t.coord.equals2D(e.coord))return!1;var i=e.segmentIndex-t.segmentIndex;return e.isInterior()||i--,1===i&&(n[0]=t.segmentIndex+1,!0)},findCollapsesFromInsertedNodes:function(t){for(var e=new Array(1).fill(null),n=this.iterator(),i=n.next();n.hasNext();){var r=n.next(),s=this.findCollapseIndex(i,r,e);s&&t.add(new b(e[0])),i=r}},getEdge:function(){return this.edge},addEndpoints:function(){var t=this.edge.size()-1;this.add(this.edge.getCoordinate(0),0),this.add(this.edge.getCoordinate(t),t)},createSplitEdge:function(t,e){var n=e.segmentIndex-t.segmentIndex+2,i=this.edge.getCoordinate(e.segmentIndex),r=e.isInterior()||!e.coord.equals2D(i);r||n--;var s=new Array(n).fill(null),o=0;s[o++]=new g(t.coord);for(var a=t.segmentIndex+1;a<=e.segmentIndex;a++)s[o++]=this.edge.getCoordinate(a);return r&&(s[o]=new g(e.coord)),new Ke(s,this.edge.getData())},add:function(t,e){var n=new Xe(this.edge,t,e,this.edge.getSegmentOctant(e)),i=this.nodeMap.get(n);return null!==i?(f.isTrue(i.coord.equals2D(t),"Found equal nodes with different coordinates"),i):(this.nodeMap.put(n,n),n)},checkSplitEdgesCorrectness:function(t){var e=this.edge.getCoordinates(),n=t.get(0),i=n.getCoordinate(0);if(!i.equals2D(e[0]))throw new l("bad split edge start point at "+i);var r=t.get(t.size()-1),s=r.getCoordinates(),o=s[s.length-1];if(!o.equals2D(e[e.length-1]))throw new l("bad split edge end point at "+o)},interfaces_:function(){return[]},getClass:function(){return He}}),e(We.prototype,{next:function(){return null===this.currNode?(this.currNode=this.nextNode,this.currSegIndex=this.currNode.segmentIndex,this.readNextNode(),this.currNode):null===this.nextNode?null:this.nextNode.segmentIndex===this.currNode.segmentIndex?(this.currNode=this.nextNode,this.currSegIndex=this.currNode.segmentIndex,this.readNextNode(),this.currNode):(this.nextNode.segmentIndex>this.currNode.segmentIndex,null)},remove:function(){throw new UnsupportedOperationException(this.getClass().getName())},hasNext:function(){return null!==this.nextNode},readNextNode:function(){this.nodeIt.hasNext()?this.nextNode=this.nodeIt.next():this.nextNode=null},interfaces_:function(){return[p]},getClass:function(){return We}}),e(je.prototype,{addIntersection:function(t,e){},interfaces_:function(){return[be]},getClass:function(){return je}}),e(Ke.prototype,{getCoordinates:function(){return this.pts},size:function(){return this.pts.length},getCoordinate:function(t){return this.pts[t]},isClosed:function(){return this.pts[0].equals(this.pts[this.pts.length-1])},getSegmentOctant:function(t){return t===this.pts.length-1?-1:this.safeOctant(this.getCoordinate(t),this.getCoordinate(t+1))},setData:function(t){this.data=t},safeOctant:function(t,e){return t.equals2D(e)?0:Pe.octant(t,e)},getData:function(){return this.data},addIntersection:function(){if(2===arguments.length){var t=arguments[0],e=arguments[1];this.addIntersectionNode(t,e)}else if(4===arguments.length){var n=arguments[0],i=arguments[1],r=(arguments[2],arguments[3]),s=new g(n.getIntersection(r));this.addIntersection(s,i)}},toString:function(){return se.toLineString(new Gt(this.pts))},getNodeList:function(){return this.nodeList},addIntersectionNode:function(t,e){var n=e,i=n+1;if(i<this.pts.length){var r=this.pts[i];t.equals2D(r)&&(n=i)}var s=this.nodeList.add(t,n);return s},addIntersections:function(t,e,n){for(var i=0;i<t.getIntersectionNum();i++)this.addIntersection(t,e,n,i)},interfaces_:function(){return[je]},getClass:function(){return Ke}}),Ke.getNodedSubstrings=function(){if(1===arguments.length){var t=arguments[0],e=new I;return Ke.getNodedSubstrings(t,e),e}if(2===arguments.length)for(var n=arguments[0],i=arguments[1],r=n.iterator();r.hasNext();){var s=r.next();s.getNodeList().addSplitEdges(i)}},e(Ze.prototype,{overlap:function(){if(2===arguments.length){arguments[0],arguments[1]}else if(4===arguments.length){var t=arguments[0],e=arguments[1],n=arguments[2],i=arguments[3];t.getLineSegment(e,this.overlapSeg1),
n.getLineSegment(i,this.overlapSeg2),this.overlap(this.overlapSeg1,this.overlapSeg2)}},interfaces_:function(){return[]},getClass:function(){return Ze}}),e(Qe.prototype,{getLineSegment:function(t,e){e.p0=this.pts[t],e.p1=this.pts[t+1]},computeSelect:function(t,e,n,i){var r=this.pts[e],s=this.pts[n];if(i.tempEnv1.init(r,s),n-e===1)return i.select(this,e),null;if(!t.intersects(i.tempEnv1))return null;var o=Math.trunc((e+n)/2);e<o&&this.computeSelect(t,e,o,i),o<n&&this.computeSelect(t,o,n,i)},getCoordinates:function(){for(var t=new Array(this.end-this.start+1).fill(null),e=0,n=this.start;n<=this.end;n++)t[e++]=this.pts[n];return t},computeOverlaps:function(t,e){this.computeOverlapsInternal(this.start,this.end,t,t.start,t.end,e)},setId:function(t){this.id=t},select:function(t,e){this.computeSelect(t,this.start,this.end,e)},getEnvelope:function(){if(null===this.env){var t=this.pts[this.start],e=this.pts[this.end];this.env=new C(t,e)}return this.env},getEndIndex:function(){return this.end},getStartIndex:function(){return this.start},getContext:function(){return this.context},getId:function(){return this.id},computeOverlapsInternal:function(t,e,n,i,r,s){var o=this.pts[t],a=this.pts[e],u=n.pts[i],l=n.pts[r];if(e-t===1&&r-i===1)return s.overlap(this,t,n,i),null;if(s.tempEnv1.init(o,a),s.tempEnv2.init(u,l),!s.tempEnv1.intersects(s.tempEnv2))return null;var h=Math.trunc((t+e)/2),c=Math.trunc((i+r)/2);t<h&&(i<c&&this.computeOverlapsInternal(t,h,n,i,c,s),c<r&&this.computeOverlapsInternal(t,h,n,c,r,s)),h<e&&(i<c&&this.computeOverlapsInternal(h,e,n,i,c,s),c<r&&this.computeOverlapsInternal(h,e,n,c,r,s))},interfaces_:function(){return[]},getClass:function(){return Qe}}),e(Je.prototype,{interfaces_:function(){return[]},getClass:function(){return Je}}),Je.isNorthern=function(t){return t===Je.NE||t===Je.NW},Je.isOpposite=function(t,e){if(t===e)return!1;var n=(t-e+4)%4;return 2===n},Je.commonHalfPlane=function(t,e){if(t===e)return t;var n=(t-e+4)%4;if(2===n)return-1;var i=t<e?t:e,r=t>e?t:e;return 0===i&&3===r?3:i},Je.isInHalfPlane=function(t,e){return e===Je.SE?t===Je.SE||t===Je.SW:t===e||t===e+1},Je.quadrant=function(){if("number"==typeof arguments[0]&&"number"==typeof arguments[1]){var t=arguments[0],e=arguments[1];if(0===t&&0===e)throw new i("Cannot compute the quadrant for point ( "+t+", "+e+" )");return t>=0?e>=0?Je.NE:Je.SE:e>=0?Je.NW:Je.SW}if(arguments[0]instanceof g&&arguments[1]instanceof g){var n=arguments[0],r=arguments[1];if(r.x===n.x&&r.y===n.y)throw new i("Cannot compute the quadrant for two identical points "+n);return r.x>=n.x?r.y>=n.y?Je.NE:Je.SE:r.y>=n.y?Je.NW:Je.SW}},Je.NE=0,Je.NW=1,Je.SW=2,Je.SE=3,e($e.prototype,{interfaces_:function(){return[]},getClass:function(){return $e}}),$e.getChainStartIndices=function(t){var e=0,n=new I;n.add(new b(e));do{var i=$e.findChainEnd(t,e);n.add(new b(i)),e=i}while(e<t.length-1);var r=$e.toIntArray(n);return r},$e.findChainEnd=function(t,e){for(var n=e;n<t.length-1&&t[n].equals2D(t[n+1]);)n++;if(n>=t.length-1)return t.length-1;for(var i=Je.quadrant(t[n],t[n+1]),r=e+1;r<t.length;){if(!t[r-1].equals2D(t[r])){var s=Je.quadrant(t[r-1],t[r]);if(s!==i)break}r++}return r-1},$e.getChains=function(){if(1===arguments.length){var t=arguments[0];return $e.getChains(t,null)}if(2===arguments.length){for(var e=arguments[0],n=arguments[1],i=new I,r=$e.getChainStartIndices(e),s=0;s<r.length-1;s++){var o=new Qe(e,r[s],r[s+1],n);i.add(o)}return i}},$e.toIntArray=function(t){for(var e=new Array(t.size()).fill(null),n=0;n<e.length;n++)e[n]=t.get(n).intValue();return e},e(tn.prototype,{computeNodes:function(t){},getNodedSubstrings:function(){},interfaces_:function(){return[]},getClass:function(){return tn}}),e(en.prototype,{setSegmentIntersector:function(t){this.segInt=t},interfaces_:function(){return[tn]},getClass:function(){return en}}),h(nn,en),e(nn.prototype,{getMonotoneChains:function(){return this.monoChains},getNodedSubstrings:function(){return Ke.getNodedSubstrings(this.nodedSegStrings)},getIndex:function(){return this.index},add:function(t){for(var e=$e.getChains(t.getCoordinates(),t),n=e.iterator();n.hasNext();){var i=n.next();i.setId(this.idCounter++),this.index.insert(i.getEnvelope(),i),this.monoChains.add(i)}},computeNodes:function(t){this.nodedSegStrings=t;for(var e=t.iterator();e.hasNext();)this.add(e.next());this.intersectChains()},intersectChains:function(){for(var t=new rn(this.segInt),e=this.monoChains.iterator();e.hasNext();)for(var n=e.next(),i=this.index.query(n.getEnvelope()),r=i.iterator();r.hasNext();){var s=r.next();if(s.getId()>n.getId()&&(n.computeOverlaps(s,t),this.nOverlaps++),this.segInt.isDone())return null}},interfaces_:function(){return[]},getClass:function(){return nn}}),h(rn,Ze),e(rn.prototype,{overlap:function(){if(4!==arguments.length)return Ze.prototype.overlap.apply(this,arguments);var t=arguments[0],e=arguments[1],n=arguments[2],i=arguments[3],r=t.getContext(),s=n.getContext();this.si.processIntersections(r,e,s,i)},interfaces_:function(){return[]},getClass:function(){return rn}}),nn.SegmentOverlapAction=rn,h(sn,l),e(sn.prototype,{getCoordinate:function(){return this.pt},interfaces_:function(){return[]},getClass:function(){return sn}}),sn.msgWithCoord=function(t,e){return null!==e?t+" [ "+e+" ]":t},e(on.prototype,{processIntersections:function(t,e,n,i){},isDone:function(){},interfaces_:function(){return[]},getClass:function(){return on}}),e(an.prototype,{getInteriorIntersection:function(){return this.interiorIntersection},setCheckEndSegmentsOnly:function(t){this.isCheckEndSegmentsOnly=t},getIntersectionSegments:function(){return this.intSegments},count:function(){return this.intersectionCount},getIntersections:function(){return this.intersections},setFindAllIntersections:function(t){this.findAllIntersections=t},setKeepIntersections:function(t){this.keepIntersections=t},processIntersections:function(t,e,n,i){if(!this.findAllIntersections&&this.hasIntersection())return null;if(t===n&&e===i)return null;if(this.isCheckEndSegmentsOnly){var r=this.isEndSegment(t,e)||this.isEndSegment(n,i);if(!r)return null}var s=t.getCoordinates()[e],o=t.getCoordinates()[e+1],a=n.getCoordinates()[i],u=n.getCoordinates()[i+1];this.li.computeIntersection(s,o,a,u),this.li.hasIntersection()&&this.li.isInteriorIntersection()&&(this.intSegments=new Array(4).fill(null),this.intSegments[0]=s,this.intSegments[1]=o,this.intSegments[2]=a,this.intSegments[3]=u,this.interiorIntersection=this.li.getIntersection(0),this.keepIntersections&&this.intersections.add(this.interiorIntersection),this.intersectionCount++)},isEndSegment:function(t,e){return 0===e||e>=t.size()-2},hasIntersection:function(){return null!==this.interiorIntersection},isDone:function(){return!this.findAllIntersections&&null!==this.interiorIntersection},interfaces_:function(){return[on]},getClass:function(){return an}}),an.createAllIntersectionsFinder=function(t){var e=new an(t);return e.setFindAllIntersections(!0),e},an.createAnyIntersectionFinder=function(t){return new an(t)},an.createIntersectionCounter=function(t){var e=new an(t);return e.setFindAllIntersections(!0),e.setKeepIntersections(!1),e},e(un.prototype,{execute:function(){return null!==this.segInt?null:void this.checkInteriorIntersections()},getIntersections:function(){return this.segInt.getIntersections()},isValid:function(){return this.execute(),this._isValid},setFindAllIntersections:function(t){this.findAllIntersections=t},checkInteriorIntersections:function(){this._isValid=!0,this.segInt=new an(this.li),this.segInt.setFindAllIntersections(this.findAllIntersections);var t=new nn;if(t.setSegmentIntersector(this.segInt),t.computeNodes(this.segStrings),this.segInt.hasIntersection())return this._isValid=!1,null},checkValid:function(){if(this.execute(),!this._isValid)throw new sn(this.getErrorMessage(),this.segInt.getInteriorIntersection())},getErrorMessage:function(){if(this._isValid)return"no intersections found";var t=this.segInt.getIntersectionSegments();return"found non-noded intersection between "+se.toLineString(t[0],t[1])+" and "+se.toLineString(t[2],t[3])},interfaces_:function(){return[]},getClass:function(){return un}}),un.computeIntersections=function(t){var e=new un(t);return e.setFindAllIntersections(!0),e.isValid(),e.getIntersections()},e(ln.prototype,{checkValid:function(){this.nv.checkValid()},interfaces_:function(){return[]},getClass:function(){return ln}}),ln.toSegmentStrings=function(t){for(var e=new I,n=t.iterator();n.hasNext();){var i=n.next();e.add(new Oe(i.getCoordinates(),i))}return e},ln.checkValid=function(t){var e=new ln(t);e.checkValid()},e(hn.prototype,{map:function(t){for(var e=new I,n=0;n<t.getNumGeometries();n++){var i=this.mapOp.map(t.getGeometryN(n));i.isEmpty()||e.add(i)}return t.getFactory().createGeometryCollection(ie.toGeometryArray(e))},interfaces_:function(){return[]},getClass:function(){return hn}}),hn.map=function(t,e){var n=new hn(e);return n.map(t)},e(cn.prototype,{interfaces_:function(){return[]},getClass:function(){return cn}}),cn.opposite=function(t){return t===cn.LEFT?cn.RIGHT:t===cn.RIGHT?cn.LEFT:t},cn.ON=0,cn.LEFT=1,cn.RIGHT=2,e(fn.prototype,{setAllLocations:function(t){for(var e=0;e<this.location.length;e++)this.location[e]=t},isNull:function(){for(var t=0;t<this.location.length;t++)if(this.location[t]!==L.NONE)return!1;return!0},setAllLocationsIfNull:function(t){for(var e=0;e<this.location.length;e++)this.location[e]===L.NONE&&(this.location[e]=t)},isLine:function(){return 1===this.location.length},merge:function(t){if(t.location.length>this.location.length){var e=new Array(3).fill(null);e[cn.ON]=this.location[cn.ON],e[cn.LEFT]=L.NONE,e[cn.RIGHT]=L.NONE,this.location=e}for(var n=0;n<this.location.length;n++)this.location[n]===L.NONE&&n<t.location.length&&(this.location[n]=t.location[n])},getLocations:function(){return this.location},flip:function(){if(this.location.length<=1)return null;var t=this.location[cn.LEFT];this.location[cn.LEFT]=this.location[cn.RIGHT],this.location[cn.RIGHT]=t},toString:function(){var t=new P;return this.location.length>1&&t.append(L.toLocationSymbol(this.location[cn.LEFT])),t.append(L.toLocationSymbol(this.location[cn.ON])),this.location.length>1&&t.append(L.toLocationSymbol(this.location[cn.RIGHT])),t.toString()},setLocations:function(t,e,n){this.location[cn.ON]=t,this.location[cn.LEFT]=e,this.location[cn.RIGHT]=n},get:function(t){return t<this.location.length?this.location[t]:L.NONE},isArea:function(){return this.location.length>1},isAnyNull:function(){for(var t=0;t<this.location.length;t++)if(this.location[t]===L.NONE)return!0;return!1},setLocation:function(){if(1===arguments.length){var t=arguments[0];this.setLocation(cn.ON,t)}else if(2===arguments.length){var e=arguments[0],n=arguments[1];this.location[e]=n}},init:function(t){this.location=new Array(t).fill(null),this.setAllLocations(L.NONE)},isEqualOnSide:function(t,e){return this.location[e]===t.location[e]},allPositionsEqual:function(t){for(var e=0;e<this.location.length;e++)if(this.location[e]!==t)return!1;return!0},interfaces_:function(){return[]},getClass:function(){return fn}}),e(gn.prototype,{getGeometryCount:function(){var t=0;return this.elt[0].isNull()||t++,this.elt[1].isNull()||t++,t},setAllLocations:function(t,e){this.elt[t].setAllLocations(e)},isNull:function(t){return this.elt[t].isNull()},setAllLocationsIfNull:function(){if(1===arguments.length){var t=arguments[0];this.setAllLocationsIfNull(0,t),this.setAllLocationsIfNull(1,t)}else if(2===arguments.length){var e=arguments[0],n=arguments[1];this.elt[e].setAllLocationsIfNull(n)}},isLine:function(t){return this.elt[t].isLine()},merge:function(t){for(var e=0;e<2;e++)null===this.elt[e]&&null!==t.elt[e]?this.elt[e]=new fn(t.elt[e]):this.elt[e].merge(t.elt[e])},flip:function(){this.elt[0].flip(),this.elt[1].flip()},getLocation:function(){if(1===arguments.length){var t=arguments[0];return this.elt[t].get(cn.ON)}if(2===arguments.length){var e=arguments[0],n=arguments[1];return this.elt[e].get(n)}},toString:function(){var t=new P;return null!==this.elt[0]&&(t.append("A:"),t.append(this.elt[0].toString())),null!==this.elt[1]&&(t.append(" B:"),t.append(this.elt[1].toString())),t.toString()},isArea:function(){if(0===arguments.length)return this.elt[0].isArea()||this.elt[1].isArea();if(1===arguments.length){var t=arguments[0];return this.elt[t].isArea()}},isAnyNull:function(t){return this.elt[t].isAnyNull()},setLocation:function(){if(2===arguments.length){var t=arguments[0],e=arguments[1];this.elt[t].setLocation(cn.ON,e)}else if(3===arguments.length){var n=arguments[0],i=arguments[1],r=arguments[2];this.elt[n].setLocation(i,r)}},isEqualOnSide:function(t,e){return this.elt[0].isEqualOnSide(t.elt[0],e)&&this.elt[1].isEqualOnSide(t.elt[1],e)},allPositionsEqual:function(t,e){return this.elt[t].allPositionsEqual(e)},toLine:function(t){this.elt[t].isArea()&&(this.elt[t]=new fn(this.elt[t].location[0]))},interfaces_:function(){return[]},getClass:function(){return gn}}),gn.toLineLabel=function(t){for(var e=new gn(L.NONE),n=0;n<2;n++)e.setLocation(n,t.getLocation(n));return e},e(dn.prototype,{computeRing:function(){if(null!==this.ring)return null;for(var t=new Array(this.pts.size()).fill(null),e=0;e<this.pts.size();e++)t[e]=this.pts.get(e);this.ring=this.geometryFactory.createLinearRing(t),this._isHole=he.isCCW(this.ring.getCoordinates())},isIsolated:function(){return 1===this.label.getGeometryCount()},computePoints:function(t){this.startDe=t;var e=t,n=!0;do{if(null===e)throw new sn("Found null DirectedEdge");if(e.getEdgeRing()===this)throw new sn("Directed Edge visited twice during ring-building at "+e.getCoordinate());this.edges.add(e);var i=e.getLabel();f.isTrue(i.isArea()),this.mergeLabel(i),this.addPoints(e.getEdge(),e.isForward(),n),n=!1,this.setEdgeRing(e,this),e=this.getNext(e)}while(e!==this.startDe)},getLinearRing:function(){return this.ring},getCoordinate:function(t){return this.pts.get(t)},computeMaxNodeDegree:function(){this.maxNodeDegree=0;var t=this.startDe;do{var e=t.getNode(),n=e.getEdges().getOutgoingDegree(this);n>this.maxNodeDegree&&(this.maxNodeDegree=n),t=this.getNext(t)}while(t!==this.startDe);this.maxNodeDegree*=2},addPoints:function(t,e,n){var i=t.getCoordinates();if(e){var r=1;n&&(r=0);for(var s=r;s<i.length;s++)this.pts.add(i[s])}else{var r=i.length-2;n&&(r=i.length-1);for(var s=r;s>=0;s--)this.pts.add(i[s])}},isHole:function(){return this._isHole},setInResult:function(){var t=this.startDe;do t.getEdge().setInResult(!0),t=t.getNext();while(t!==this.startDe)},containsPoint:function(t){var e=this.getLinearRing(),n=e.getEnvelopeInternal();if(!n.contains(t))return!1;if(!he.isPointInRing(t,e.getCoordinates()))return!1;for(var i=this.holes.iterator();i.hasNext();){var r=i.next();if(r.containsPoint(t))return!1}return!0},addHole:function(t){this.holes.add(t)},isShell:function(){return null===this.shell},getLabel:function(){return this.label},getEdges:function(){return this.edges},getMaxNodeDegree:function(){return this.maxNodeDegree<0&&this.computeMaxNodeDegree(),this.maxNodeDegree},getShell:function(){return this.shell},mergeLabel:function(){if(1===arguments.length){var t=arguments[0];this.mergeLabel(t,0),this.mergeLabel(t,1)}else if(2===arguments.length){var e=arguments[0],n=arguments[1],i=e.getLocation(n,cn.RIGHT);if(i===L.NONE)return null;if(this.label.getLocation(n)===L.NONE)return this.label.setLocation(n,i),null}},setShell:function(t){this.shell=t,null!==t&&t.addHole(this)},toPolygon:function(t){for(var e=new Array(this.holes.size()).fill(null),n=0;n<this.holes.size();n++)e[n]=this.holes.get(n).getLinearRing();var i=t.createPolygon(this.getLinearRing(),e);return i},interfaces_:function(){return[]},getClass:function(){return dn}}),h(pn,dn),e(pn.prototype,{setEdgeRing:function(t,e){t.setMinEdgeRing(e)},getNext:function(t){return t.getNextMin()},interfaces_:function(){return[]},getClass:function(){return pn}}),h(vn,dn),e(vn.prototype,{buildMinimalRings:function(){var t=new I,e=this.startDe;do{if(null===e.getMinEdgeRing()){var n=new pn(e,this.geometryFactory);t.add(n)}e=e.getNext()}while(e!==this.startDe);return t},setEdgeRing:function(t,e){t.setEdgeRing(e)},linkDirectedEdgesForMinimalEdgeRings:function(){var t=this.startDe;do{var e=t.getNode();e.getEdges().linkMinimalDirectedEdges(this),t=t.getNext()}while(t!==this.startDe)},getNext:function(t){return t.getNext()},interfaces_:function(){return[]},getClass:function(){return vn}}),e(mn.prototype,{setVisited:function(t){this._isVisited=t},setInResult:function(t){this._isInResult=t},isCovered:function(){return this._isCovered},isCoveredSet:function(){return this._isCoveredSet},setLabel:function(t){this.label=t},getLabel:function(){return this.label},setCovered:function(t){this._isCovered=t,this._isCoveredSet=!0},updateIM:function(t){f.isTrue(this.label.getGeometryCount()>=2,"found partial label"),this.computeIM(t)},isInResult:function(){return this._isInResult},isVisited:function(){return this._isVisited},interfaces_:function(){return[]},getClass:function(){return mn}}),h(yn,mn),e(yn.prototype,{isIncidentEdgeInResult:function(){for(var t=this.getEdges().getEdges().iterator();t.hasNext();){var e=t.next();if(e.getEdge().isInResult())return!0}return!1},isIsolated:function(){return 1===this.label.getGeometryCount()},getCoordinate:function(){return this.coord},print:function(t){t.println("node "+this.coord+" lbl: "+this.label)},computeIM:function(t){},computeMergedLocation:function(t,e){var n=L.NONE;if(n=this.label.getLocation(e),!t.isNull(e)){var i=t.getLocation(e);n!==L.BOUNDARY&&(n=i)}return n},setLabel:function(){if(2!==arguments.length)return mn.prototype.setLabel.apply(this,arguments);var t=arguments[0],e=arguments[1];null===this.label?this.label=new gn(t,e):this.label.setLocation(t,e)},getEdges:function(){return this.edges},mergeLabel:function(){if(arguments[0]instanceof yn){var t=arguments[0];this.mergeLabel(t.label)}else if(arguments[0]instanceof gn)for(var e=arguments[0],n=0;n<2;n++){var i=this.computeMergedLocation(e,n),r=this.label.getLocation(n);r===L.NONE&&this.label.setLocation(n,i)}},add:function(t){this.edges.insert(t),t.setNode(this)},setLabelBoundary:function(t){if(null===this.label)return null;var e=L.NONE;null!==this.label&&(e=this.label.getLocation(t));var n=null;switch(e){case L.BOUNDARY:n=L.INTERIOR;break;case L.INTERIOR:n=L.BOUNDARY;break;default:n=L.BOUNDARY}this.label.setLocation(t,n)},interfaces_:function(){return[]},getClass:function(){return yn}}),e(xn.prototype,{find:function(t){return this.nodeMap.get(t)},addNode:function(){if(arguments[0]instanceof g){var t=arguments[0],e=this.nodeMap.get(t);return null===e&&(e=this.nodeFact.createNode(t),this.nodeMap.put(t,e)),e}if(arguments[0]instanceof yn){var n=arguments[0],e=this.nodeMap.get(n.getCoordinate());return null===e?(this.nodeMap.put(n.getCoordinate(),n),n):(e.mergeLabel(n),e)}},print:function(t){for(var e=this.iterator();e.hasNext();){var n=e.next();n.print(t)}},iterator:function(){return this.nodeMap.values().iterator()},values:function(){return this.nodeMap.values()},getBoundaryNodes:function(t){for(var e=new I,n=this.iterator();n.hasNext();){var i=n.next();i.getLabel().getLocation(t)===L.BOUNDARY&&e.add(i)}return e},add:function(t){var e=t.getCoordinate(),n=this.addNode(e);n.add(t)},interfaces_:function(){return[]},getClass:function(){return xn}}),e(En.prototype,{compareDirection:function(t){return this.dx===t.dx&&this.dy===t.dy?0:this.quadrant>t.quadrant?1:this.quadrant<t.quadrant?-1:he.computeOrientation(t.p0,t.p1,this.p1)},getDy:function(){return this.dy},getCoordinate:function(){return this.p0},setNode:function(t){this.node=t},print:function(t){var e=Math.atan2(this.dy,this.dx),n=this.getClass().getName(),i=n.lastIndexOf("."),r=n.substring(i+1);t.print(" "+r+": "+this.p0+" - "+this.p1+" "+this.quadrant+":"+e+" "+this.label)},compareTo:function(t){var e=t;return this.compareDirection(e)},getDirectedCoordinate:function(){return this.p1},getDx:function(){return this.dx},getLabel:function(){return this.label},getEdge:function(){return this.edge},getQuadrant:function(){return this.quadrant},getNode:function(){return this.node},toString:function(){var t=Math.atan2(this.dy,this.dx),e=this.getClass().getName(),n=e.lastIndexOf("."),i=e.substring(n+1);return" "+i+": "+this.p0+" - "+this.p1+" "+this.quadrant+":"+t+" "+this.label},computeLabel:function(t){},init:function(t,e){this.p0=t,this.p1=e,this.dx=e.x-t.x,this.dy=e.y-t.y,this.quadrant=Je.quadrant(this.dx,this.dy),f.isTrue(!(0===this.dx&&0===this.dy),"EdgeEnd with identical endpoints found")},interfaces_:function(){return[s]},getClass:function(){return En}}),h(In,En),e(In.prototype,{getNextMin:function(){return this.nextMin},getDepth:function(t){return this.depth[t]},setVisited:function(t){this._isVisited=t},computeDirectedLabel:function(){this.label=new gn(this.edge.getLabel()),this._isForward||this.label.flip()},getNext:function(){return this.next},setDepth:function(t,e){if(this.depth[t]!==-999&&this.depth[t]!==e)throw new sn("assigned depths do not match",this.getCoordinate());this.depth[t]=e},isInteriorAreaEdge:function t(){for(var t=!0,e=0;e<2;e++)this.label.isArea(e)&&this.label.getLocation(e,cn.LEFT)===L.INTERIOR&&this.label.getLocation(e,cn.RIGHT)===L.INTERIOR||(t=!1);return t},setNextMin:function(t){this.nextMin=t},print:function(t){En.prototype.print.call(this,t),t.print(" "+this.depth[cn.LEFT]+"/"+this.depth[cn.RIGHT]),t.print(" ("+this.getDepthDelta()+")"),this._isInResult&&t.print(" inResult")},setMinEdgeRing:function(t){this.minEdgeRing=t},isLineEdge:function(){var t=this.label.isLine(0)||this.label.isLine(1),e=!this.label.isArea(0)||this.label.allPositionsEqual(0,L.EXTERIOR),n=!this.label.isArea(1)||this.label.allPositionsEqual(1,L.EXTERIOR);return t&&e&&n},setEdgeRing:function(t){this.edgeRing=t},getMinEdgeRing:function(){return this.minEdgeRing},getDepthDelta:function(){var t=this.edge.getDepthDelta();return this._isForward||(t=-t),t},setInResult:function(t){this._isInResult=t},getSym:function(){return this.sym},isForward:function(){return this._isForward},getEdge:function(){return this.edge},printEdge:function(t){this.print(t),t.print(" "),this._isForward?this.edge.print(t):this.edge.printReverse(t)},setSym:function(t){this.sym=t},setVisitedEdge:function(t){this.setVisited(t),this.sym.setVisited(t)},setEdgeDepths:function(t,e){var n=this.getEdge().getDepthDelta();this._isForward||(n=-n);var i=1;t===cn.LEFT&&(i=-1);var r=cn.opposite(t),s=n*i,o=e+s;this.setDepth(t,e),this.setDepth(r,o)},getEdgeRing:function(){return this.edgeRing},isInResult:function(){return this._isInResult},setNext:function(t){this.next=t},isVisited:function(){return this._isVisited},interfaces_:function(){return[]},getClass:function(){return In}}),In.depthFactor=function(t,e){return t===L.EXTERIOR&&e===L.INTERIOR?1:t===L.INTERIOR&&e===L.EXTERIOR?-1:0},e(Nn.prototype,{createNode:function(t){return new yn(t,null)},interfaces_:function(){return[]},getClass:function(){return Nn}}),e(Cn.prototype,{printEdges:function(t){t.println("Edges:");for(var e=0;e<this.edges.size();e++){t.println("edge "+e+":");var n=this.edges.get(e);n.print(t),n.eiList.print(t)}},find:function(t){return this.nodes.find(t)},addNode:function(){if(arguments[0]instanceof yn){var t=arguments[0];return this.nodes.addNode(t)}if(arguments[0]instanceof g){var e=arguments[0];return this.nodes.addNode(e)}},getNodeIterator:function(){return this.nodes.iterator()},linkResultDirectedEdges:function(){for(var t=this.nodes.iterator();t.hasNext();){var e=t.next();e.getEdges().linkResultDirectedEdges()}},debugPrintln:function(t){A.out.println(t)},isBoundaryNode:function(t,e){var n=this.nodes.find(e);if(null===n)return!1;var i=n.getLabel();return null!==i&&i.getLocation(t)===L.BOUNDARY},linkAllDirectedEdges:function(){for(var t=this.nodes.iterator();t.hasNext();){var e=t.next();e.getEdges().linkAllDirectedEdges()}},matchInSameDirection:function(t,e,n,i){return!!t.equals(n)&&(he.computeOrientation(t,e,i)===he.COLLINEAR&&Je.quadrant(t,e)===Je.quadrant(n,i))},getEdgeEnds:function(){return this.edgeEndList},debugPrint:function(t){A.out.print(t)},getEdgeIterator:function(){return this.edges.iterator()},findEdgeInSameDirection:function(t,e){for(var n=0;n<this.edges.size();n++){var i=this.edges.get(n),r=i.getCoordinates();if(this.matchInSameDirection(t,e,r[0],r[1]))return i;if(this.matchInSameDirection(t,e,r[r.length-1],r[r.length-2]))return i}return null},insertEdge:function(t){this.edges.add(t)},findEdgeEnd:function(t){for(var e=this.getEdgeEnds().iterator();e.hasNext();){var n=e.next();if(n.getEdge()===t)return n}return null},addEdges:function(t){for(var e=t.iterator();e.hasNext();){var n=e.next();this.edges.add(n);var i=new In(n,(!0)),r=new In(n,(!1));i.setSym(r),r.setSym(i),this.add(i),this.add(r)}},add:function(t){this.nodes.add(t),this.edgeEndList.add(t)},getNodes:function(){return this.nodes.values()},findEdge:function(t,e){for(var n=0;n<this.edges.size();n++){var i=this.edges.get(n),r=i.getCoordinates();if(t.equals(r[0])&&e.equals(r[1]))return i}return null},interfaces_:function(){return[]},getClass:function(){return Cn}}),Cn.linkResultDirectedEdges=function(t){for(var e=t.iterator();e.hasNext();){var n=e.next();n.getEdges().linkResultDirectedEdges()}},e(Sn.prototype,{sortShellsAndHoles:function(t,e,n){for(var i=t.iterator();i.hasNext();){var r=i.next();r.isHole()?n.add(r):e.add(r)}},computePolygons:function(t){for(var e=new I,n=t.iterator();n.hasNext();){var i=n.next(),r=i.toPolygon(this.geometryFactory);e.add(r)}return e},placeFreeHoles:function(t,e){for(var n=e.iterator();n.hasNext();){var i=n.next();if(null===i.getShell()){var r=this.findEdgeRingContaining(i,t);if(null===r)throw new sn("unable to assign hole to a shell",i.getCoordinate(0));i.setShell(r)}}},buildMinimalEdgeRings:function(t,e,n){for(var i=new I,r=t.iterator();r.hasNext();){var s=r.next();if(s.getMaxNodeDegree()>2){s.linkDirectedEdgesForMinimalEdgeRings();var o=s.buildMinimalRings(),a=this.findShell(o);null!==a?(this.placePolygonHoles(a,o),e.add(a)):n.addAll(o)}else i.add(s)}return i},containsPoint:function(t){for(var e=this.shellList.iterator();e.hasNext();){var n=e.next();if(n.containsPoint(t))return!0}return!1},buildMaximalEdgeRings:function(t){for(var e=new I,n=t.iterator();n.hasNext();){var i=n.next();if(i.isInResult()&&i.getLabel().isArea()&&null===i.getEdgeRing()){var r=new vn(i,this.geometryFactory);e.add(r),r.setInResult()}}return e},placePolygonHoles:function(t,e){for(var n=e.iterator();n.hasNext();){var i=n.next();i.isHole()&&i.setShell(t)}},getPolygons:function(){var t=this.computePolygons(this.shellList);return t},findEdgeRingContaining:function(t,e){for(var n=t.getLinearRing(),i=n.getEnvelopeInternal(),r=n.getCoordinateN(0),s=null,o=null,a=e.iterator();a.hasNext();){var u=a.next(),l=u.getLinearRing(),h=l.getEnvelopeInternal();null!==s&&(o=s.getLinearRing().getEnvelopeInternal());var c=!1;h.contains(i)&&he.isPointInRing(r,l.getCoordinates())&&(c=!0),c&&(null===s||o.contains(h))&&(s=u)}return s},findShell:function(t){for(var e=0,n=null,i=t.iterator();i.hasNext();){var r=i.next();r.isHole()||(n=r,e++)}return f.isTrue(e<=1,"found two shells in MinimalEdgeRing list"),n},add:function(){if(1===arguments.length){var t=arguments[0];this.add(t.getEdgeEnds(),t.getNodes())}else if(2===arguments.length){var e=arguments[0],n=arguments[1];Cn.linkResultDirectedEdges(n);var i=this.buildMaximalEdgeRings(e),r=new I,s=this.buildMinimalEdgeRings(i,this.shellList,r);this.sortShellsAndHoles(s,this.shellList,r),this.placeFreeHoles(this.shellList,r)}},interfaces_:function(){return[]},getClass:function(){return Sn}}),e(wn.prototype,{collectLines:function(t){for(var e=this.op.getGraph().getEdgeEnds().iterator();e.hasNext();){var n=e.next();this.collectLineEdge(n,t,this.lineEdgesList),this.collectBoundaryTouchEdge(n,t,this.lineEdgesList)}},labelIsolatedLine:function(t,e){var n=this.ptLocator.locate(t.getCoordinate(),this.op.getArgGeometry(e));t.getLabel().setLocation(e,n)},build:function(t){return this.findCoveredLineEdges(),this.collectLines(t),this.buildLines(t),this.resultLineList},collectLineEdge:function(t,e,n){var i=t.getLabel(),r=t.getEdge();t.isLineEdge()&&(t.isVisited()||!ii.isResultOfOp(i,e)||r.isCovered()||(n.add(r),t.setVisitedEdge(!0)))},findCoveredLineEdges:function(){for(var t=this.op.getGraph().getNodes().iterator();t.hasNext();){var e=t.next();e.getEdges().findCoveredLineEdges()}for(var n=this.op.getGraph().getEdgeEnds().iterator();n.hasNext();){var i=n.next(),r=i.getEdge();if(i.isLineEdge()&&!r.isCoveredSet()){var s=this.op.isCoveredByA(i.getCoordinate());r.setCovered(s)}}},labelIsolatedLines:function(t){for(var e=t.iterator();e.hasNext();){var n=e.next(),i=n.getLabel();n.isIsolated()&&(i.isNull(0)?this.labelIsolatedLine(n,0):this.labelIsolatedLine(n,1))}},buildLines:function(t){for(var e=this.lineEdgesList.iterator();e.hasNext();){var n=e.next(),i=(n.getLabel(),this.geometryFactory.createLineString(n.getCoordinates()));this.resultLineList.add(i),n.setInResult(!0)}},collectBoundaryTouchEdge:function(t,e,n){var i=t.getLabel();return t.isLineEdge()?null:t.isVisited()?null:t.isInteriorAreaEdge()?null:t.getEdge().isInResult()?null:(f.isTrue(!(t.isInResult()||t.getSym().isInResult())||!t.getEdge().isInResult()),void(ii.isResultOfOp(i,e)&&e===ii.INTERSECTION&&(n.add(t.getEdge()),t.setVisitedEdge(!0))))},interfaces_:function(){return[]},getClass:function(){return wn}}),e(Ln.prototype,{filterCoveredNodeToPoint:function(t){var e=t.getCoordinate();if(!this.op.isCoveredByLA(e)){var n=this.geometryFactory.createPoint(e);this.resultPointList.add(n)}},extractNonCoveredResultNodes:function(t){for(var e=this.op.getGraph().getNodes().iterator();e.hasNext();){var n=e.next();if(!(n.isInResult()||n.isIncidentEdgeInResult()||0!==n.getEdges().getDegree()&&t!==ii.INTERSECTION)){var i=n.getLabel();ii.isResultOfOp(i,t)&&this.filterCoveredNodeToPoint(n)}}},build:function(t){return this.extractNonCoveredResultNodes(t),this.resultPointList},interfaces_:function(){return[]},getClass:function(){return Ln}}),e(Rn.prototype,{locate:function(t){},interfaces_:function(){return[]},getClass:function(){return Rn}}),e(Tn.prototype,{locate:function(t){return Tn.locate(t,this.geom)},interfaces_:function(){return[Rn]},getClass:function(){return Tn}}),Tn.isPointInRing=function(t,e){return!!e.getEnvelopeInternal().intersects(t)&&he.isPointInRing(t,e.getCoordinates())},Tn.containsPointInPolygon=function(t,e){if(e.isEmpty())return!1;var n=e.getExteriorRing();if(!Tn.isPointInRing(t,n))return!1;for(var i=0;i<e.getNumInteriorRing();i++){var r=e.getInteriorRingN(i);if(Tn.isPointInRing(t,r))return!1}return!0},Tn.containsPoint=function(t,e){if(e instanceof Tt)return Tn.containsPointInPolygon(t,e);if(e instanceof ft)for(var n=new Re(e);n.hasNext();){var i=n.next();if(i!==e&&Tn.containsPoint(t,i))return!0}return!1},Tn.locate=function(t,e){return e.isEmpty()?L.EXTERIOR:Tn.containsPoint(t,e)?L.INTERIOR:L.EXTERIOR},e(Pn.prototype,{getNextCW:function(t){this.getEdges();var e=this.edgeList.indexOf(t),n=e-1;return 0===e&&(n=this.edgeList.size()-1),this.edgeList.get(n)},propagateSideLabels:function(t){for(var e=L.NONE,n=this.iterator();n.hasNext();){var i=n.next(),r=i.getLabel();r.isArea(t)&&r.getLocation(t,cn.LEFT)!==L.NONE&&(e=r.getLocation(t,cn.LEFT))}if(e===L.NONE)return null;for(var s=e,n=this.iterator();n.hasNext();){var i=n.next(),r=i.getLabel();if(r.getLocation(t,cn.ON)===L.NONE&&r.setLocation(t,cn.ON,s),r.isArea(t)){var o=r.getLocation(t,cn.LEFT),a=r.getLocation(t,cn.RIGHT);if(a!==L.NONE){if(a!==s)throw new sn("side location conflict",i.getCoordinate());o===L.NONE&&f.shouldNeverReachHere("found single null side (at "+i.getCoordinate()+")"),s=o}else f.isTrue(r.getLocation(t,cn.LEFT)===L.NONE,"found single null side"),r.setLocation(t,cn.RIGHT,s),r.setLocation(t,cn.LEFT,s)}}},getCoordinate:function(){var t=this.iterator();if(!t.hasNext())return null;var e=t.next();return e.getCoordinate()},print:function(t){A.out.println("EdgeEndStar: "+this.getCoordinate());for(var e=this.iterator();e.hasNext();){var n=e.next();
n.print(t)}},isAreaLabelsConsistent:function(t){return this.computeEdgeEndLabels(t.getBoundaryNodeRule()),this.checkAreaLabelsConsistent(0)},checkAreaLabelsConsistent:function(t){var e=this.getEdges();if(e.size()<=0)return!0;var n=e.size()-1,i=e.get(n).getLabel(),r=i.getLocation(t,cn.LEFT);f.isTrue(r!==L.NONE,"Found unlabelled area edge");for(var s=r,o=this.iterator();o.hasNext();){var a=o.next(),u=a.getLabel();f.isTrue(u.isArea(t),"Found non-area edge");var l=u.getLocation(t,cn.LEFT),h=u.getLocation(t,cn.RIGHT);if(l===h)return!1;if(h!==s)return!1;s=l}return!0},findIndex:function(t){this.iterator();for(var e=0;e<this.edgeList.size();e++){var n=this.edgeList.get(e);if(n===t)return e}return-1},iterator:function(){return this.getEdges().iterator()},getEdges:function(){return null===this.edgeList&&(this.edgeList=new I(this.edgeMap.values())),this.edgeList},getLocation:function(t,e,n){return this.ptInAreaLocation[t]===L.NONE&&(this.ptInAreaLocation[t]=Tn.locate(e,n[t].getGeometry())),this.ptInAreaLocation[t]},toString:function(){var t=new P;t.append("EdgeEndStar: "+this.getCoordinate()),t.append("\n");for(var e=this.iterator();e.hasNext();){var n=e.next();t.append(n),t.append("\n")}return t.toString()},computeEdgeEndLabels:function(t){for(var e=this.iterator();e.hasNext();){var n=e.next();n.computeLabel(t)}},computeLabelling:function(t){this.computeEdgeEndLabels(t[0].getBoundaryNodeRule()),this.propagateSideLabels(0),this.propagateSideLabels(1);for(var e=[!1,!1],n=this.iterator();n.hasNext();)for(var i=n.next(),r=i.getLabel(),s=0;s<2;s++)r.isLine(s)&&r.getLocation(s)===L.BOUNDARY&&(e[s]=!0);for(var n=this.iterator();n.hasNext();)for(var i=n.next(),r=i.getLabel(),s=0;s<2;s++)if(r.isAnyNull(s)){var o=L.NONE;if(e[s])o=L.EXTERIOR;else{var a=i.getCoordinate();o=this.getLocation(s,a,t)}r.setAllLocationsIfNull(s,o)}},getDegree:function(){return this.edgeMap.size()},insertEdgeEnd:function(t,e){this.edgeMap.put(t,e),this.edgeList=null},interfaces_:function(){return[]},getClass:function(){return Pn}}),h(bn,Pn),e(bn.prototype,{linkResultDirectedEdges:function(){this.getResultAreaEdges();for(var t=null,e=null,n=this.SCANNING_FOR_INCOMING,i=0;i<this.resultAreaEdgeList.size();i++){var r=this.resultAreaEdgeList.get(i),s=r.getSym();if(r.getLabel().isArea())switch(null===t&&r.isInResult()&&(t=r),n){case this.SCANNING_FOR_INCOMING:if(!s.isInResult())continue;e=s,n=this.LINKING_TO_OUTGOING;break;case this.LINKING_TO_OUTGOING:if(!r.isInResult())continue;e.setNext(r),n=this.SCANNING_FOR_INCOMING}}if(n===this.LINKING_TO_OUTGOING){if(null===t)throw new sn("no outgoing dirEdge found",this.getCoordinate());f.isTrue(t.isInResult(),"unable to link last incoming dirEdge"),e.setNext(t)}},insert:function(t){var e=t;this.insertEdgeEnd(e,e)},getRightmostEdge:function(){var t=this.getEdges(),e=t.size();if(e<1)return null;var n=t.get(0);if(1===e)return n;var i=t.get(e-1),r=n.getQuadrant(),s=i.getQuadrant();if(Je.isNorthern(r)&&Je.isNorthern(s))return n;if(!Je.isNorthern(r)&&!Je.isNorthern(s))return i;return 0!==n.getDy()?n:0!==i.getDy()?i:(f.shouldNeverReachHere("found two horizontal edges incident on node"),null)},print:function(t){A.out.println("DirectedEdgeStar: "+this.getCoordinate());for(var e=this.iterator();e.hasNext();){var n=e.next();t.print("out "),n.print(t),t.println(),t.print("in "),n.getSym().print(t),t.println()}},getResultAreaEdges:function(){if(null!==this.resultAreaEdgeList)return this.resultAreaEdgeList;this.resultAreaEdgeList=new I;for(var t=this.iterator();t.hasNext();){var e=t.next();(e.isInResult()||e.getSym().isInResult())&&this.resultAreaEdgeList.add(e)}return this.resultAreaEdgeList},updateLabelling:function(t){for(var e=this.iterator();e.hasNext();){var n=e.next(),i=n.getLabel();i.setAllLocationsIfNull(0,t.getLocation(0)),i.setAllLocationsIfNull(1,t.getLocation(1))}},linkAllDirectedEdges:function(){this.getEdges();for(var t=null,e=null,n=this.edgeList.size()-1;n>=0;n--){var i=this.edgeList.get(n),r=i.getSym();null===e&&(e=r),null!==t&&r.setNext(t),t=i}e.setNext(t)},computeDepths:function(){if(1===arguments.length){var t=arguments[0],e=this.findIndex(t),n=(t.getLabel(),t.getDepth(cn.LEFT)),i=t.getDepth(cn.RIGHT),r=this.computeDepths(e+1,this.edgeList.size(),n),s=this.computeDepths(0,e,r);if(s!==i)throw new sn("depth mismatch at "+t.getCoordinate())}else if(3===arguments.length){for(var o=arguments[0],a=arguments[1],u=arguments[2],l=u,h=o;h<a;h++){var c=this.edgeList.get(h);c.getLabel();c.setEdgeDepths(cn.RIGHT,l),l=c.getDepth(cn.LEFT)}return l}},mergeSymLabels:function(){for(var t=this.iterator();t.hasNext();){var e=t.next(),n=e.getLabel();n.merge(e.getSym().getLabel())}},linkMinimalDirectedEdges:function(t){for(var e=null,n=null,i=this.SCANNING_FOR_INCOMING,r=this.resultAreaEdgeList.size()-1;r>=0;r--){var s=this.resultAreaEdgeList.get(r),o=s.getSym();switch(null===e&&s.getEdgeRing()===t&&(e=s),i){case this.SCANNING_FOR_INCOMING:if(o.getEdgeRing()!==t)continue;n=o,i=this.LINKING_TO_OUTGOING;break;case this.LINKING_TO_OUTGOING:if(s.getEdgeRing()!==t)continue;n.setNextMin(s),i=this.SCANNING_FOR_INCOMING}}i===this.LINKING_TO_OUTGOING&&(f.isTrue(null!==e,"found null for first outgoing dirEdge"),f.isTrue(e.getEdgeRing()===t,"unable to link last incoming dirEdge"),n.setNextMin(e))},getOutgoingDegree:function(){if(0===arguments.length){for(var t=0,e=this.iterator();e.hasNext();){var n=e.next();n.isInResult()&&t++}return t}if(1===arguments.length){for(var i=arguments[0],t=0,e=this.iterator();e.hasNext();){var n=e.next();n.getEdgeRing()===i&&t++}return t}},getLabel:function(){return this.label},findCoveredLineEdges:function(){for(var t=L.NONE,e=this.iterator();e.hasNext();){var n=e.next(),i=n.getSym();if(!n.isLineEdge()){if(n.isInResult()){t=L.INTERIOR;break}if(i.isInResult()){t=L.EXTERIOR;break}}}if(t===L.NONE)return null;for(var r=t,e=this.iterator();e.hasNext();){var n=e.next(),i=n.getSym();n.isLineEdge()?n.getEdge().setCovered(r===L.INTERIOR):(n.isInResult()&&(r=L.EXTERIOR),i.isInResult()&&(r=L.INTERIOR))}},computeLabelling:function(t){Pn.prototype.computeLabelling.call(this,t),this.label=new gn(L.NONE);for(var e=this.iterator();e.hasNext();)for(var n=e.next(),i=n.getEdge(),r=i.getLabel(),s=0;s<2;s++){var o=r.getLocation(s);o!==L.INTERIOR&&o!==L.BOUNDARY||this.label.setLocation(s,L.INTERIOR)}},interfaces_:function(){return[]},getClass:function(){return bn}}),h(On,Nn),e(On.prototype,{createNode:function(t){return new yn(t,new bn)},interfaces_:function(){return[]},getClass:function(){return On}}),e(_n.prototype,{computeIntersections:function(t,e){this.mce.computeIntersectsForChain(this.chainIndex,t.mce,t.chainIndex,e)},interfaces_:function(){return[]},getClass:function(){return _n}}),e(Mn.prototype,{isDelete:function(){return this.eventType===Mn.DELETE},setDeleteEventIndex:function(t){this.deleteEventIndex=t},getObject:function(){return this.obj},compareTo:function(t){var e=t;return this.xValue<e.xValue?-1:this.xValue>e.xValue?1:this.eventType<e.eventType?-1:this.eventType>e.eventType?1:0},getInsertEvent:function(){return this.insertEvent},isInsert:function(){return this.eventType===Mn.INSERT},isSameLabel:function(t){return null!==this.label&&this.label===t.label},getDeleteEventIndex:function(){return this.deleteEventIndex},interfaces_:function(){return[s]},getClass:function(){return Mn}}),Mn.INSERT=1,Mn.DELETE=2,e(Dn.prototype,{interfaces_:function(){return[]},getClass:function(){return Dn}}),e(An.prototype,{isTrivialIntersection:function(t,e,n,i){if(t===n&&1===this.li.getIntersectionNum()){if(An.isAdjacentSegments(e,i))return!0;if(t.isClosed()){var r=t.getNumPoints()-1;if(0===e&&i===r||0===i&&e===r)return!0}}return!1},getProperIntersectionPoint:function(){return this.properIntersectionPoint},setIsDoneIfProperInt:function(t){this.isDoneWhenProperInt=t},hasProperInteriorIntersection:function(){return this.hasProperInterior},isBoundaryPointInternal:function(t,e){for(var n=e.iterator();n.hasNext();){var i=n.next(),r=i.getCoordinate();if(t.isIntersection(r))return!0}return!1},hasProperIntersection:function(){return this.hasProper},hasIntersection:function(){return this._hasIntersection},isDone:function(){return this._isDone},isBoundaryPoint:function(t,e){return null!==e&&(!!this.isBoundaryPointInternal(t,e[0])||!!this.isBoundaryPointInternal(t,e[1]))},setBoundaryNodes:function(t,e){this.bdyNodes=new Array(2).fill(null),this.bdyNodes[0]=t,this.bdyNodes[1]=e},addIntersections:function(t,e,n,i){if(t===n&&e===i)return null;this.numTests++;var r=t.getCoordinates()[e],s=t.getCoordinates()[e+1],o=n.getCoordinates()[i],a=n.getCoordinates()[i+1];this.li.computeIntersection(r,s,o,a),this.li.hasIntersection()&&(this.recordIsolated&&(t.setIsolated(!1),n.setIsolated(!1)),this.numIntersections++,this.isTrivialIntersection(t,e,n,i)||(this._hasIntersection=!0,!this.includeProper&&this.li.isProper()||(t.addIntersections(this.li,e,0),n.addIntersections(this.li,i,1)),this.li.isProper()&&(this.properIntersectionPoint=this.li.getIntersection(0).copy(),this.hasProper=!0,this.isDoneWhenProperInt&&(this._isDone=!0),this.isBoundaryPoint(this.li,this.bdyNodes)||(this.hasProperInterior=!0))))},interfaces_:function(){return[]},getClass:function(){return An}}),An.isAdjacentSegments=function(t,e){return 1===Math.abs(t-e)},h(Fn,Dn),e(Fn.prototype,{prepareEvents:function(){ho.sort(this.events);for(var t=0;t<this.events.size();t++){var e=this.events.get(t);e.isDelete()&&e.getInsertEvent().setDeleteEventIndex(t)}},computeIntersections:function(){if(1===arguments.length){var t=arguments[0];this.nOverlaps=0,this.prepareEvents();for(var e=0;e<this.events.size();e++){var n=this.events.get(e);if(n.isInsert()&&this.processOverlaps(e,n.getDeleteEventIndex(),n,t),t.isDone())break}}else if(3===arguments.length)if(arguments[2]instanceof An&&R(arguments[0],y)&&R(arguments[1],y)){var i=arguments[0],r=arguments[1],s=arguments[2];this.addEdges(i,i),this.addEdges(r,r),this.computeIntersections(s)}else if("boolean"==typeof arguments[2]&&R(arguments[0],y)&&arguments[1]instanceof An){var o=arguments[0],a=arguments[1],u=arguments[2];u?this.addEdges(o,null):this.addEdges(o),this.computeIntersections(a)}},addEdge:function(t,e){for(var n=t.getMonotoneChainEdge(),i=n.getStartIndexes(),r=0;r<i.length-1;r++){var s=new _n(n,r),o=new Mn(e,n.getMinX(r),s);this.events.add(o),this.events.add(new Mn(n.getMaxX(r),o))}},processOverlaps:function(t,e,n,i){for(var r=n.getObject(),s=t;s<e;s++){var o=this.events.get(s);if(o.isInsert()){var a=o.getObject();n.isSameLabel(o)||(r.computeIntersections(a,i),this.nOverlaps++)}}},addEdges:function(){if(1===arguments.length)for(var t=arguments[0],e=t.iterator();e.hasNext();){var n=e.next();this.addEdge(n,n)}else if(2===arguments.length)for(var i=arguments[0],r=arguments[1],e=i.iterator();e.hasNext();){var n=e.next();this.addEdge(n,r)}},interfaces_:function(){return[]},getClass:function(){return Fn}}),e(Gn.prototype,{getMin:function(){return this.min},intersects:function(t,e){return!(this.min>e||this.max<t)},getMax:function(){return this.max},toString:function(){return se.toLineString(new g(this.min,0),new g(this.max,0))},interfaces_:function(){return[]},getClass:function(){return Gn}}),e(qn.prototype,{compare:function(t,e){var n=t,i=e,r=(n.min+n.max)/2,s=(i.min+i.max)/2;return r<s?-1:r>s?1:0},interfaces_:function(){return[a]},getClass:function(){return qn}}),Gn.NodeComparator=qn,h(Bn,Gn),e(Bn.prototype,{query:function(t,e,n){return this.intersects(t,e)?void n.visitItem(this.item):null},interfaces_:function(){return[]},getClass:function(){return Bn}}),h(zn,Gn),e(zn.prototype,{buildExtent:function(t,e){this.min=Math.min(t.min,e.min),this.max=Math.max(t.max,e.max)},query:function(t,e,n){return this.intersects(t,e)?(null!==this.node1&&this.node1.query(t,e,n),void(null!==this.node2&&this.node2.query(t,e,n))):null},interfaces_:function(){return[]},getClass:function(){return zn}}),e(Vn.prototype,{buildTree:function(){ho.sort(this.leaves,new IntervalRTreeNode.NodeComparator);for(var t=this.leaves,e=null,n=new I;;){if(this.buildLevel(t,n),1===n.size())return n.get(0);e=t,t=n,n=e}},insert:function(t,e,n){if(null!==this.root)throw new IllegalStateException("Index cannot be added to once it has been queried");this.leaves.add(new Bn(t,e,n))},query:function(t,e,n){this.init(),this.root.query(t,e,n)},buildRoot:function(){return null!==this.root?null:void(this.root=this.buildTree())},printNode:function(t){A.out.println(se.toLineString(new g(t.min,this.level),new g(t.max,this.level)))},init:function(){return null!==this.root?null:void this.buildRoot()},buildLevel:function(t,e){this.level++,e.clear();for(var n=0;n<t.size();n+=2){var i=t.get(n),r=n+1<t.size()?t.get(n):null;if(null===r)e.add(i);else{var s=new zn(t.get(n),t.get(n+1));e.add(s)}}},interfaces_:function(){return[]},getClass:function(){return Vn}}),e(kn.prototype,{filter:function(t){if(this.isForcedToLineString&&t instanceof bt){var e=t.getFactory().createLineString(t.getCoordinateSequence());return this.lines.add(e),null}t instanceof St&&this.lines.add(t)},setForceToLineString:function(t){this.isForcedToLineString=t},interfaces_:function(){return[q]},getClass:function(){return kn}}),kn.getGeometry=function(){if(1===arguments.length){var t=arguments[0];return t.getFactory().buildGeometry(kn.getLines(t))}if(2===arguments.length){var e=arguments[0],n=arguments[1];return e.getFactory().buildGeometry(kn.getLines(e,n))}},kn.getLines=function(){if(1===arguments.length){var t=arguments[0];return kn.getLines(t,!1)}if(2===arguments.length){if(R(arguments[0],v)&&R(arguments[1],v)){for(var e=arguments[0],n=arguments[1],i=e.iterator();i.hasNext();){var r=i.next();kn.getLines(r,n)}return n}if(arguments[0]instanceof B&&"boolean"==typeof arguments[1]){var s=arguments[0],o=arguments[1],a=new I;return s.apply(new kn(a,o)),a}if(arguments[0]instanceof B&&R(arguments[1],v)){var u=arguments[0],l=arguments[1];return u instanceof St?l.add(u):u.apply(new kn(l)),l}}else if(3===arguments.length){if("boolean"==typeof arguments[2]&&R(arguments[0],v)&&R(arguments[1],v)){for(var h=arguments[0],c=arguments[1],f=arguments[2],i=h.iterator();i.hasNext();){var r=i.next();kn.getLines(r,c,f)}return c}if("boolean"==typeof arguments[2]&&arguments[0]instanceof B&&R(arguments[1],v)){var g=arguments[0],d=arguments[1],p=arguments[2];return g.apply(new kn(d,p)),d}}},e(Yn.prototype,{visitItem:function(t){this.items.add(t)},getItems:function(){return this.items},interfaces_:function(){return[Ae]},getClass:function(){return Yn}}),e(Un.prototype,{locate:function(t){var e=new le(t),n=new Xn(e);return this.index.query(t.y,t.y,n),e.getLocation()},interfaces_:function(){return[Rn]},getClass:function(){return Un}}),e(Xn.prototype,{visitItem:function(t){var e=t;this.counter.countSegment(e.getCoordinate(0),e.getCoordinate(1))},interfaces_:function(){return[Ae]},getClass:function(){return Xn}}),e(Hn.prototype,{init:function(t){for(var e=kn.getLines(t),n=e.iterator();n.hasNext();){var i=n.next(),r=i.getCoordinates();this.addLine(r)}},addLine:function(t){for(var e=1;e<t.length;e++){var n=new ce(t[e-1],t[e]),i=Math.min(n.p0.y,n.p1.y),r=Math.max(n.p0.y,n.p1.y);this.index.insert(i,r,n)}},query:function(){if(2===arguments.length){var t=arguments[0],e=arguments[1],n=new Yn;return this.index.query(t,e,n),n.getItems()}if(3===arguments.length){var i=arguments[0],r=arguments[1],s=arguments[2];this.index.query(i,r,s)}},interfaces_:function(){return[]},getClass:function(){return Hn}}),Un.SegmentVisitor=Xn,Un.IntervalIndexedGeometry=Hn,e(Wn.prototype,{getSegmentIndex:function(){return this.segmentIndex},getCoordinate:function(){return this.coord},print:function(t){t.print(this.coord),t.print(" seg # = "+this.segmentIndex),t.println(" dist = "+this.dist)},compareTo:function(t){var e=t;return this.compare(e.segmentIndex,e.dist)},isEndPoint:function(t){return 0===this.segmentIndex&&0===this.dist||this.segmentIndex===t},toString:function(){return this.coord+" seg # = "+this.segmentIndex+" dist = "+this.dist},getDistance:function(){return this.dist},compare:function(t,e){return this.segmentIndex<t?-1:this.segmentIndex>t?1:this.dist<e?-1:this.dist>e?1:0},interfaces_:function(){return[s]},getClass:function(){return Wn}}),e(jn.prototype,{print:function(t){t.println("Intersections:");for(var e=this.iterator();e.hasNext();){var n=e.next();n.print(t)}},iterator:function(){return this.nodeMap.values().iterator()},addSplitEdges:function(t){this.addEndpoints();for(var e=this.iterator(),n=e.next();e.hasNext();){var i=e.next(),r=this.createSplitEdge(n,i);t.add(r),n=i}},addEndpoints:function(){var t=this.edge.pts.length-1;this.add(this.edge.pts[0],0,0),this.add(this.edge.pts[t],t,0)},createSplitEdge:function(t,e){var n=e.segmentIndex-t.segmentIndex+2,i=this.edge.pts[e.segmentIndex],r=e.dist>0||!e.coord.equals2D(i);r||n--;var s=new Array(n).fill(null),o=0;s[o++]=new g(t.coord);for(var a=t.segmentIndex+1;a<=e.segmentIndex;a++)s[o++]=this.edge.pts[a];return r&&(s[o]=e.coord),new Jn(s,new gn(this.edge.label))},add:function(t,e,n){var i=new Wn(t,e,n),r=this.nodeMap.get(i);return null!==r?r:(this.nodeMap.put(i,i),i)},isIntersection:function(t){for(var e=this.iterator();e.hasNext();){var n=e.next();if(n.coord.equals(t))return!0}return!1},interfaces_:function(){return[]},getClass:function(){return jn}}),e(Kn.prototype,{getChainStartIndices:function(t){var e=0,n=new I;n.add(new b(e));do{var i=this.findChainEnd(t,e);n.add(new b(i)),e=i}while(e<t.length-1);var r=Kn.toIntArray(n);return r},findChainEnd:function(t,e){for(var n=Je.quadrant(t[e],t[e+1]),i=e+1;i<t.length;){var r=Je.quadrant(t[i-1],t[i]);if(r!==n)break;i++}return i-1},interfaces_:function(){return[]},getClass:function(){return Kn}}),Kn.toIntArray=function(t){for(var e=new Array(t.size()).fill(null),n=0;n<e.length;n++)e[n]=t.get(n).intValue();return e},e(Zn.prototype,{getCoordinates:function(){return this.pts},getMaxX:function(t){var e=this.pts[this.startIndex[t]].x,n=this.pts[this.startIndex[t+1]].x;return e>n?e:n},getMinX:function(t){var e=this.pts[this.startIndex[t]].x,n=this.pts[this.startIndex[t+1]].x;return e<n?e:n},computeIntersectsForChain:function(){if(4===arguments.length){var t=arguments[0],e=arguments[1],n=arguments[2],i=arguments[3];this.computeIntersectsForChain(this.startIndex[t],this.startIndex[t+1],e,e.startIndex[n],e.startIndex[n+1],i)}else if(6===arguments.length){var r=arguments[0],s=arguments[1],o=arguments[2],a=arguments[3],u=arguments[4],l=arguments[5],h=this.pts[r],c=this.pts[s],f=o.pts[a],g=o.pts[u];if(s-r===1&&u-a===1)return l.addIntersections(this.e,r,o.e,a),null;if(this.env1.init(h,c),this.env2.init(f,g),!this.env1.intersects(this.env2))return null;var d=Math.trunc((r+s)/2),p=Math.trunc((a+u)/2);r<d&&(a<p&&this.computeIntersectsForChain(r,d,o,a,p,l),p<u&&this.computeIntersectsForChain(r,d,o,p,u,l)),d<s&&(a<p&&this.computeIntersectsForChain(d,s,o,a,p,l),p<u&&this.computeIntersectsForChain(d,s,o,p,u,l))}},getStartIndexes:function(){return this.startIndex},computeIntersects:function(t,e){for(var n=0;n<this.startIndex.length-1;n++)for(var i=0;i<t.startIndex.length-1;i++)this.computeIntersectsForChain(n,t,i,e)},interfaces_:function(){return[]},getClass:function(){return Zn}}),e(Qn.prototype,{getDepth:function(t,e){return this.depth[t][e]},setDepth:function(t,e,n){this.depth[t][e]=n},isNull:function(){if(0===arguments.length){for(var t=0;t<2;t++)for(var e=0;e<3;e++)if(this.depth[t][e]!==Qn.NULL_VALUE)return!1;return!0}if(1===arguments.length){var n=arguments[0];return this.depth[n][1]===Qn.NULL_VALUE}if(2===arguments.length){var i=arguments[0],r=arguments[1];return this.depth[i][r]===Qn.NULL_VALUE}},normalize:function(){for(var t=0;t<2;t++)if(!this.isNull(t)){var e=this.depth[t][1];this.depth[t][2]<e&&(e=this.depth[t][2]),e<0&&(e=0);for(var n=1;n<3;n++){var i=0;this.depth[t][n]>e&&(i=1),this.depth[t][n]=i}}},getDelta:function(t){return this.depth[t][cn.RIGHT]-this.depth[t][cn.LEFT]},getLocation:function(t,e){return this.depth[t][e]<=0?L.EXTERIOR:L.INTERIOR},toString:function(){return"A: "+this.depth[0][1]+","+this.depth[0][2]+" B: "+this.depth[1][1]+","+this.depth[1][2]},add:function(){if(1===arguments.length)for(var t=arguments[0],e=0;e<2;e++)for(var n=1;n<3;n++){var i=t.getLocation(e,n);i!==L.EXTERIOR&&i!==L.INTERIOR||(this.isNull(e,n)?this.depth[e][n]=Qn.depthAtLocation(i):this.depth[e][n]+=Qn.depthAtLocation(i))}else if(3===arguments.length){var r=arguments[0],s=arguments[1],o=arguments[2];o===L.INTERIOR&&this.depth[r][s]++}},interfaces_:function(){return[]},getClass:function(){return Qn}}),Qn.depthAtLocation=function(t){return t===L.EXTERIOR?0:t===L.INTERIOR?1:Qn.NULL_VALUE},Qn.NULL_VALUE=-1,h(Jn,mn),e(Jn.prototype,{getDepth:function(){return this.depth},getCollapsedEdge:function(){var t=new Array(2).fill(null);t[0]=this.pts[0],t[1]=this.pts[1];var e=new Jn(t,gn.toLineLabel(this.label));return e},isIsolated:function(){return this._isIsolated},getCoordinates:function(){return this.pts},setIsolated:function(t){this._isIsolated=t},setName:function(t){this.name=t},equals:function(t){if(!(t instanceof Jn))return!1;var e=t;if(this.pts.length!==e.pts.length)return!1;for(var n=!0,i=!0,r=this.pts.length,s=0;s<this.pts.length;s++)if(this.pts[s].equals2D(e.pts[s])||(n=!1),this.pts[s].equals2D(e.pts[--r])||(i=!1),!n&&!i)return!1;return!0},getCoordinate:function(){if(0===arguments.length)return this.pts.length>0?this.pts[0]:null;if(1===arguments.length){var t=arguments[0];return this.pts[t]}},print:function(t){t.print("edge "+this.name+": "),t.print("LINESTRING (");for(var e=0;e<this.pts.length;e++)e>0&&t.print(","),t.print(this.pts[e].x+" "+this.pts[e].y);t.print(") "+this.label+" "+this.depthDelta)},computeIM:function(t){Jn.updateIM(this.label,t)},isCollapsed:function(){return!!this.label.isArea()&&(3===this.pts.length&&!!this.pts[0].equals(this.pts[2]))},isClosed:function(){return this.pts[0].equals(this.pts[this.pts.length-1])},getMaximumSegmentIndex:function(){return this.pts.length-1},getDepthDelta:function(){return this.depthDelta},getNumPoints:function(){return this.pts.length},printReverse:function(t){t.print("edge "+this.name+": ");for(var e=this.pts.length-1;e>=0;e--)t.print(this.pts[e]+" ");t.println("")},getMonotoneChainEdge:function(){return null===this.mce&&(this.mce=new Zn(this)),this.mce},getEnvelope:function(){if(null===this.env){this.env=new C;for(var t=0;t<this.pts.length;t++)this.env.expandToInclude(this.pts[t])}return this.env},addIntersection:function(t,e,n,i){var r=new g(t.getIntersection(i)),s=e,o=t.getEdgeDistance(n,i),a=s+1;if(a<this.pts.length){var u=this.pts[a];r.equals2D(u)&&(s=a,o=0)}this.eiList.add(r,s,o)},toString:function(){var t=new P;t.append("edge "+this.name+": "),t.append("LINESTRING (");for(var e=0;e<this.pts.length;e++)e>0&&t.append(","),t.append(this.pts[e].x+" "+this.pts[e].y);return t.append(") "+this.label+" "+this.depthDelta),t.toString()},isPointwiseEqual:function(t){if(this.pts.length!==t.pts.length)return!1;for(var e=0;e<this.pts.length;e++)if(!this.pts[e].equals2D(t.pts[e]))return!1;return!0},setDepthDelta:function(t){this.depthDelta=t},getEdgeIntersectionList:function(){return this.eiList},addIntersections:function(t,e,n){for(var i=0;i<t.getIntersectionNum();i++)this.addIntersection(t,e,n,i)},interfaces_:function(){return[]},getClass:function(){return Jn}}),Jn.updateIM=function(){if(2!==arguments.length)return mn.prototype.updateIM.apply(this,arguments);var t=arguments[0],e=arguments[1];e.setAtLeastIfValid(t.getLocation(0,cn.ON),t.getLocation(1,cn.ON),1),t.isArea()&&(e.setAtLeastIfValid(t.getLocation(0,cn.LEFT),t.getLocation(1,cn.LEFT),2),e.setAtLeastIfValid(t.getLocation(0,cn.RIGHT),t.getLocation(1,cn.RIGHT),2))},h($n,Cn),e($n.prototype,{insertBoundaryPoint:function(t,e){var n=this.nodes.addNode(e),i=n.getLabel(),r=1,s=L.NONE;s=i.getLocation(t,cn.ON),s===L.BOUNDARY&&r++;var o=$n.determineBoundary(this.boundaryNodeRule,r);i.setLocation(t,o)},computeSelfNodes:function(){if(2===arguments.length){var t=arguments[0],e=arguments[1];return this.computeSelfNodes(t,e,!1)}if(3===arguments.length){var n=arguments[0],i=arguments[1],r=arguments[2],s=new An(n,(!0),(!1));s.setIsDoneIfProperInt(r);var o=this.createEdgeSetIntersector(),a=this.parentGeom instanceof bt||this.parentGeom instanceof Tt||this.parentGeom instanceof Ot,u=i||!a;return o.computeIntersections(this.edges,s,u),this.addSelfIntersectionNodes(this.argIndex),s}},computeSplitEdges:function(t){for(var e=this.edges.iterator();e.hasNext();){var n=e.next();n.eiList.addSplitEdges(t)}},computeEdgeIntersections:function(t,e,n){var i=new An(e,n,(!0));i.setBoundaryNodes(this.getBoundaryNodes(),t.getBoundaryNodes());var r=this.createEdgeSetIntersector();return r.computeIntersections(this.edges,t.edges,i),i},getGeometry:function(){return this.parentGeom},getBoundaryNodeRule:function(){return this.boundaryNodeRule},hasTooFewPoints:function(){return this._hasTooFewPoints},addPoint:function(){if(arguments[0]instanceof Lt){var t=arguments[0],e=t.getCoordinate();this.insertPoint(this.argIndex,e,L.INTERIOR)}else if(arguments[0]instanceof g){var n=arguments[0];this.insertPoint(this.argIndex,n,L.INTERIOR)}},addPolygon:function(t){this.addPolygonRing(t.getExteriorRing(),L.EXTERIOR,L.INTERIOR);for(var e=0;e<t.getNumInteriorRing();e++){var n=t.getInteriorRingN(e);this.addPolygonRing(n,L.INTERIOR,L.EXTERIOR)}},addEdge:function(t){this.insertEdge(t);var e=t.getCoordinates();this.insertPoint(this.argIndex,e[0],L.BOUNDARY),this.insertPoint(this.argIndex,e[e.length-1],L.BOUNDARY)},addLineString:function(t){var e=H.removeRepeatedPoints(t.getCoordinates());if(e.length<2)return this._hasTooFewPoints=!0,this.invalidPoint=e[0],null;var n=new Jn(e,new gn(this.argIndex,L.INTERIOR));this.lineEdgeMap.put(t,n),this.insertEdge(n),f.isTrue(e.length>=2,"found LineString with single point"),this.insertBoundaryPoint(this.argIndex,e[0]),this.insertBoundaryPoint(this.argIndex,e[e.length-1])},getInvalidPoint:function(){return this.invalidPoint},getBoundaryPoints:function(){for(var t=this.getBoundaryNodes(),e=new Array(t.size()).fill(null),n=0,i=t.iterator();i.hasNext();){var r=i.next();e[n++]=r.getCoordinate().copy()}return e},getBoundaryNodes:function(){return null===this.boundaryNodes&&(this.boundaryNodes=this.nodes.getBoundaryNodes(this.argIndex)),this.boundaryNodes},addSelfIntersectionNode:function(t,e,n){return this.isBoundaryNode(t,e)?null:void(n===L.BOUNDARY&&this.useBoundaryDeterminationRule?this.insertBoundaryPoint(t,e):this.insertPoint(t,e,n))},addPolygonRing:function(t,e,n){if(t.isEmpty())return null;var i=H.removeRepeatedPoints(t.getCoordinates());if(i.length<4)return this._hasTooFewPoints=!0,this.invalidPoint=i[0],null;var r=e,s=n;he.isCCW(i)&&(r=n,s=e);var o=new Jn(i,new gn(this.argIndex,L.BOUNDARY,r,s));this.lineEdgeMap.put(t,o),this.insertEdge(o),this.insertPoint(this.argIndex,i[0],L.BOUNDARY)},insertPoint:function(t,e,n){var i=this.nodes.addNode(e),r=i.getLabel();null===r?i.label=new gn(t,n):r.setLocation(t,n)},createEdgeSetIntersector:function(){return new Fn},addSelfIntersectionNodes:function(t){for(var e=this.edges.iterator();e.hasNext();)for(var n=e.next(),i=n.getLabel().getLocation(t),r=n.eiList.iterator();r.hasNext();){var s=r.next();this.addSelfIntersectionNode(t,s.coord,i)}},add:function(){if(1!==arguments.length)return Cn.prototype.add.apply(this,arguments);var t=arguments[0];if(t.isEmpty())return null;if(t instanceof Ot&&(this.useBoundaryDeterminationRule=!1),t instanceof Tt)this.addPolygon(t);else if(t instanceof St)this.addLineString(t);else if(t instanceof Lt)this.addPoint(t);else if(t instanceof Pt)this.addCollection(t);else if(t instanceof gt)this.addCollection(t);else if(t instanceof Ot)this.addCollection(t);else{if(!(t instanceof ft))throw new UnsupportedOperationException(t.getClass().getName());this.addCollection(t)}},addCollection:function(t){for(var e=0;e<t.getNumGeometries();e++){var n=t.getGeometryN(e);this.add(n)}},locate:function(t){return R(this.parentGeom,Rt)&&this.parentGeom.getNumGeometries()>50?(null===this.areaPtLocator&&(this.areaPtLocator=new Un(this.parentGeom)),this.areaPtLocator.locate(t)):this.ptLocator.locate(t,this.parentGeom)},findEdge:function(){if(1===arguments.length){var t=arguments[0];return this.lineEdgeMap.get(t)}return Cn.prototype.findEdge.apply(this,arguments)},interfaces_:function(){return[]},getClass:function(){return $n}}),$n.determineBoundary=function(t,e){return t.isInBoundary(e)?L.BOUNDARY:L.INTERIOR},e(ti.prototype,{getArgGeometry:function(t){return this.arg[t].getGeometry()},setComputationPrecision:function(t){this.resultPrecisionModel=t,this.li.setPrecisionModel(this.resultPrecisionModel)},interfaces_:function(){return[]},getClass:function(){return ti}}),e(ei.prototype,{compareTo:function(t){var e=t,n=ei.compareOriented(this.pts,this._orientation,e.pts,e._orientation);return n},interfaces_:function(){return[s]},getClass:function(){return ei}}),ei.orientation=function(t){return 1===H.increasingDirection(t)},ei.compareOriented=function(t,e,n,i){for(var r=e?1:-1,s=i?1:-1,o=e?t.length:-1,a=i?n.length:-1,u=e?0:t.length-1,l=i?0:n.length-1;;){var h=t[u].compareTo(n[l]);if(0!==h)return h;u+=r,l+=s;var c=u===o,f=l===a;if(c&&!f)return-1;if(!c&&f)return 1;if(c&&f)return 0}},e(ni.prototype,{print:function(t){t.print("MULTILINESTRING ( ");for(var e=0;e<this.edges.size();e++){var n=this.edges.get(e);e>0&&t.print(","),t.print("(");for(var i=n.getCoordinates(),r=0;r<i.length;r++)r>0&&t.print(","),t.print(i[r].x+" "+i[r].y);t.println(")")}t.print(") ")},addAll:function(t){for(var e=t.iterator();e.hasNext();)this.add(e.next())},findEdgeIndex:function(t){for(var e=0;e<this.edges.size();e++)if(this.edges.get(e).equals(t))return e;return-1},iterator:function(){return this.edges.iterator()},getEdges:function(){return this.edges},get:function(t){return this.edges.get(t)},findEqualEdge:function(t){var e=new ei(t.getCoordinates()),n=this.ocaMap.get(e);return n},add:function(t){this.edges.add(t);var e=new ei(t.getCoordinates());this.ocaMap.put(e,t)},interfaces_:function(){return[]},getClass:function(){return ni}}),h(ii,ti),e(ii.prototype,{insertUniqueEdge:function(t){var e=this.edgeList.findEqualEdge(t);if(null!==e){var n=e.getLabel(),i=t.getLabel();e.isPointwiseEqual(t)||(i=new gn(t.getLabel()),i.flip());var r=e.getDepth();r.isNull()&&r.add(n),r.add(i),n.merge(i)}else this.edgeList.add(t)},getGraph:function(){return this.graph},cancelDuplicateResultEdges:function(){for(var t=this.graph.getEdgeEnds().iterator();t.hasNext();){var e=t.next(),n=e.getSym();e.isInResult()&&n.isInResult()&&(e.setInResult(!1),n.setInResult(!1))}},isCoveredByLA:function(t){return!!this.isCovered(t,this.resultLineList)||!!this.isCovered(t,this.resultPolyList)},computeGeometry:function(t,e,n,i){var r=new I;return r.addAll(t),r.addAll(e),r.addAll(n),r.isEmpty()?ii.createEmptyResult(i,this.arg[0].getGeometry(),this.arg[1].getGeometry(),this.geomFact):this.geomFact.buildGeometry(r)},mergeSymLabels:function(){for(var t=this.graph.getNodes().iterator();t.hasNext();){var e=t.next();e.getEdges().mergeSymLabels()}},isCovered:function(t,e){for(var n=e.iterator();n.hasNext();){var i=n.next(),r=this.ptLocator.locate(t,i);if(r!==L.EXTERIOR)return!0}return!1},replaceCollapsedEdges:function(){for(var t=new I,e=this.edgeList.iterator();e.hasNext();){var n=e.next();n.isCollapsed()&&(e.remove(),t.add(n.getCollapsedEdge()))}this.edgeList.addAll(t)},updateNodeLabelling:function(){for(var t=this.graph.getNodes().iterator();t.hasNext();){var e=t.next(),n=e.getEdges().getLabel();e.getLabel().merge(n)}},getResultGeometry:function(t){return this.computeOverlay(t),this.resultGeom},insertUniqueEdges:function(t){for(var e=t.iterator();e.hasNext();){var n=e.next();this.insertUniqueEdge(n)}},computeOverlay:function(t){this.copyPoints(0),this.copyPoints(1),this.arg[0].computeSelfNodes(this.li,!1),this.arg[1].computeSelfNodes(this.li,!1),this.arg[0].computeEdgeIntersections(this.arg[1],this.li,!0);var e=new I;this.arg[0].computeSplitEdges(e),this.arg[1].computeSplitEdges(e);this.insertUniqueEdges(e),this.computeLabelsFromDepths(),this.replaceCollapsedEdges(),
ln.checkValid(this.edgeList.getEdges()),this.graph.addEdges(this.edgeList.getEdges()),this.computeLabelling(),this.labelIncompleteNodes(),this.findResultAreaEdges(t),this.cancelDuplicateResultEdges();var n=new Sn(this.geomFact);n.add(this.graph),this.resultPolyList=n.getPolygons();var i=new wn(this,this.geomFact,this.ptLocator);this.resultLineList=i.build(t);var r=new Ln(this,this.geomFact,this.ptLocator);this.resultPointList=r.build(t),this.resultGeom=this.computeGeometry(this.resultPointList,this.resultLineList,this.resultPolyList,t)},labelIncompleteNode:function(t,e){var n=this.ptLocator.locate(t.getCoordinate(),this.arg[e].getGeometry());t.getLabel().setLocation(e,n)},copyPoints:function(t){for(var e=this.arg[t].getNodeIterator();e.hasNext();){var n=e.next(),i=this.graph.addNode(n.getCoordinate());i.setLabel(t,n.getLabel().getLocation(t))}},findResultAreaEdges:function(t){for(var e=this.graph.getEdgeEnds().iterator();e.hasNext();){var n=e.next(),i=n.getLabel();i.isArea()&&!n.isInteriorAreaEdge()&&ii.isResultOfOp(i.getLocation(0,cn.RIGHT),i.getLocation(1,cn.RIGHT),t)&&n.setInResult(!0)}},computeLabelsFromDepths:function(){for(var t=this.edgeList.iterator();t.hasNext();){var e=t.next(),n=e.getLabel(),i=e.getDepth();if(!i.isNull()){i.normalize();for(var r=0;r<2;r++)n.isNull(r)||!n.isArea()||i.isNull(r)||(0===i.getDelta(r)?n.toLine(r):(f.isTrue(!i.isNull(r,cn.LEFT),"depth of LEFT side has not been initialized"),n.setLocation(r,cn.LEFT,i.getLocation(r,cn.LEFT)),f.isTrue(!i.isNull(r,cn.RIGHT),"depth of RIGHT side has not been initialized"),n.setLocation(r,cn.RIGHT,i.getLocation(r,cn.RIGHT))))}}},computeLabelling:function(){for(var t=this.graph.getNodes().iterator();t.hasNext();){var e=t.next();e.getEdges().computeLabelling(this.arg)}this.mergeSymLabels(),this.updateNodeLabelling()},labelIncompleteNodes:function(){for(var t=0,e=this.graph.getNodes().iterator();e.hasNext();){var n=e.next(),i=n.getLabel();n.isIsolated()&&(t++,i.isNull(0)?this.labelIncompleteNode(n,0):this.labelIncompleteNode(n,1)),n.getEdges().updateLabelling(i)}},isCoveredByA:function(t){return!!this.isCovered(t,this.resultPolyList)},interfaces_:function(){return[]},getClass:function(){return ii}}),ii.overlayOp=function(t,e,n){var i=new ii(t,e),r=i.getResultGeometry(n);return r},ii.intersection=function(t,e){if(t.isEmpty()||e.isEmpty())return ii.createEmptyResult(ii.INTERSECTION,t,e,t.getFactory());if(t.isGeometryCollection()){var n=e;return hn.map(t,{interfaces_:function(){return[MapOp]},map:function(t){return t.intersection(n)}})}return t.checkNotGeometryCollection(t),t.checkNotGeometryCollection(e),si.overlayOp(t,e,ii.INTERSECTION)},ii.symDifference=function(t,e){if(t.isEmpty()||e.isEmpty()){if(t.isEmpty()&&e.isEmpty())return ii.createEmptyResult(ii.SYMDIFFERENCE,t,e,t.getFactory());if(t.isEmpty())return e.copy();if(e.isEmpty())return t.copy()}return t.checkNotGeometryCollection(t),t.checkNotGeometryCollection(e),si.overlayOp(t,e,ii.SYMDIFFERENCE)},ii.resultDimension=function(t,e,n){var i=e.getDimension(),r=n.getDimension(),s=-1;switch(t){case ii.INTERSECTION:s=Math.min(i,r);break;case ii.UNION:s=Math.max(i,r);break;case ii.DIFFERENCE:s=i;break;case ii.SYMDIFFERENCE:s=Math.max(i,r)}return s},ii.createEmptyResult=function(t,e,n,i){var r=null;switch(ii.resultDimension(t,e,n)){case-1:r=i.createGeometryCollection(new Array(0).fill(null));break;case 0:r=i.createPoint();break;case 1:r=i.createLineString();break;case 2:r=i.createPolygon()}return r},ii.difference=function(t,e){return t.isEmpty()?ii.createEmptyResult(ii.DIFFERENCE,t,e,t.getFactory()):e.isEmpty()?t.copy():(t.checkNotGeometryCollection(t),t.checkNotGeometryCollection(e),si.overlayOp(t,e,ii.DIFFERENCE))},ii.isResultOfOp=function(){if(2===arguments.length){var t=arguments[0],e=arguments[1],n=t.getLocation(0),i=t.getLocation(1);return ii.isResultOfOp(n,i,e)}if(3===arguments.length){var r=arguments[0],s=arguments[1],o=arguments[2];switch(r===L.BOUNDARY&&(r=L.INTERIOR),s===L.BOUNDARY&&(s=L.INTERIOR),o){case ii.INTERSECTION:return r===L.INTERIOR&&s===L.INTERIOR;case ii.UNION:return r===L.INTERIOR||s===L.INTERIOR;case ii.DIFFERENCE:return r===L.INTERIOR&&s!==L.INTERIOR;case ii.SYMDIFFERENCE:return r===L.INTERIOR&&s!==L.INTERIOR||r!==L.INTERIOR&&s===L.INTERIOR}return!1}},ii.INTERSECTION=1,ii.UNION=2,ii.DIFFERENCE=3,ii.SYMDIFFERENCE=4,e(ri.prototype,{selfSnap:function(t){var e=new Ie(t),n=e.snapTo(t,this.snapTolerance);return n},removeCommonBits:function(t){this.cbr=new Se,this.cbr.add(t[0]),this.cbr.add(t[1]);var e=new Array(2).fill(null);return e[0]=this.cbr.removeCommonBits(t[0].copy()),e[1]=this.cbr.removeCommonBits(t[1].copy()),e},prepareResult:function(t){return this.cbr.addCommonBits(t),t},getResultGeometry:function(t){var e=this.snap(this.geom),n=ii.overlayOp(e[0],e[1],t);return this.prepareResult(n)},checkValid:function(t){t.isValid()||A.out.println("Snapped geometry is invalid")},computeSnapTolerance:function(){this.snapTolerance=Ie.computeOverlaySnapTolerance(this.geom[0],this.geom[1])},snap:function(t){var e=this.removeCommonBits(t),n=Ie.snap(e[0],e[1],this.snapTolerance);return n},interfaces_:function(){return[]},getClass:function(){return ri}}),ri.overlayOp=function(t,e,n){var i=new ri(t,e);return i.getResultGeometry(n)},ri.union=function(t,e){return ri.overlayOp(t,e,ii.UNION)},ri.intersection=function(t,e){return ri.overlayOp(t,e,ii.INTERSECTION)},ri.symDifference=function(t,e){return ri.overlayOp(t,e,ii.SYMDIFFERENCE)},ri.difference=function(t,e){return ri.overlayOp(t,e,ii.DIFFERENCE)},e(si.prototype,{getResultGeometry:function(t){var e=null,n=!1,i=null;try{e=ii.overlayOp(this.geom[0],this.geom[1],t);var r=!0;r&&(n=!0)}catch(t){if(!(t instanceof l))throw t;i=t}finally{}if(!n)try{e=ri.overlayOp(this.geom[0],this.geom[1],t)}catch(t){throw t instanceof l?i:t}finally{}return e},interfaces_:function(){return[]},getClass:function(){return si}}),si.overlayOp=function(t,e,n){var i=new si(t,e);return i.getResultGeometry(n)},si.union=function(t,e){return si.overlayOp(t,e,ii.UNION)},si.intersection=function(t,e){return si.overlayOp(t,e,ii.INTERSECTION)},si.symDifference=function(t,e){return si.overlayOp(t,e,ii.SYMDIFFERENCE)},si.difference=function(t,e){return si.overlayOp(t,e,ii.DIFFERENCE)},e(oi.prototype,{addPolygon:function(t){if(t.isEmpty())return null;var e=null,n=0,i=this.horizontalBisector(t);if(0===i.getLength())n=0,e=i.getCoordinate();else{var r=si.overlayOp(i,t,ii.INTERSECTION),s=this.widestGeometry(r);n=s.getEnvelopeInternal().getWidth(),e=oi.centre(s.getEnvelopeInternal())}(null===this.interiorPoint||n>this.maxWidth)&&(this.interiorPoint=e,this.maxWidth=n)},getInteriorPoint:function(){return this.interiorPoint},widestGeometry:function t(){if(arguments[0]instanceof ft){var e=arguments[0];if(e.isEmpty())return e;for(var t=e.getGeometryN(0),n=1;n<e.getNumGeometries();n++)e.getGeometryN(n).getEnvelopeInternal().getWidth()>t.getEnvelopeInternal().getWidth()&&(t=e.getGeometryN(n));return t}if(arguments[0]instanceof B){var i=arguments[0];return i instanceof ft?this.widestGeometry(i):i}},horizontalBisector:function(t){var e=t.getEnvelopeInternal(),n=ai.getBisectorY(t);return this.factory.createLineString([new g(e.getMinX(),n),new g(e.getMaxX(),n)])},add:function(t){if(t instanceof Tt)this.addPolygon(t);else if(t instanceof ft)for(var e=t,n=0;n<e.getNumGeometries();n++)this.add(e.getGeometryN(n))},interfaces_:function(){return[]},getClass:function(){return oi}}),oi.centre=function(t){return new g(oi.avg(t.getMinX(),t.getMaxX()),oi.avg(t.getMinY(),t.getMaxY()))},oi.avg=function(t,e){return(t+e)/2},e(ai.prototype,{updateInterval:function(t){t<=this.centreY?t>this.loY&&(this.loY=t):t>this.centreY&&t<this.hiY&&(this.hiY=t)},getBisectorY:function(){this.process(this.poly.getExteriorRing());for(var t=0;t<this.poly.getNumInteriorRing();t++)this.process(this.poly.getInteriorRingN(t));var e=oi.avg(this.hiY,this.loY);return e},process:function(t){for(var e=t.getCoordinateSequence(),n=0;n<e.size();n++){var i=e.getY(n);this.updateInterval(i)}},interfaces_:function(){return[]},getClass:function(){return ai}}),ai.getBisectorY=function(t){var e=new ai(t);return e.getBisectorY()},oi.SafeBisectorFinder=ai,e(ui.prototype,{addEndpoints:function(){if(arguments[0]instanceof B){var t=arguments[0];if(t instanceof St)this.addEndpoints(t.getCoordinates());else if(t instanceof ft)for(var e=t,n=0;n<e.getNumGeometries();n++)this.addEndpoints(e.getGeometryN(n))}else if(arguments[0]instanceof Array){var i=arguments[0];this.add(i[0]),this.add(i[i.length-1])}},getInteriorPoint:function(){return this.interiorPoint},addInterior:function(){if(arguments[0]instanceof B){var t=arguments[0];if(t instanceof St)this.addInterior(t.getCoordinates());else if(t instanceof ft)for(var e=t,n=0;n<e.getNumGeometries();n++)this.addInterior(e.getGeometryN(n))}else if(arguments[0]instanceof Array)for(var i=arguments[0],n=1;n<i.length-1;n++)this.add(i[n])},add:function(t){var e=t.distance(this.centroid);e<this.minDistance&&(this.interiorPoint=new g(t),this.minDistance=e)},interfaces_:function(){return[]},getClass:function(){return ui}}),e(li.prototype,{getInteriorPoint:function(){return this.interiorPoint},add:function(){if(arguments[0]instanceof B){var t=arguments[0];if(t instanceof Lt)this.add(t.getCoordinate());else if(t instanceof ft)for(var e=t,n=0;n<e.getNumGeometries();n++)this.add(e.getGeometryN(n))}else if(arguments[0]instanceof g){var i=arguments[0],r=i.distance(this.centroid);r<this.minDistance&&(this.interiorPoint=new g(i),this.minDistance=r)}},interfaces_:function(){return[]},getClass:function(){return li}}),e(hi.prototype,{select:function(){if(1===arguments.length){arguments[0]}else if(2===arguments.length){var t=arguments[0],e=arguments[1];t.getLineSegment(e,this.selectedSegment),this.select(this.selectedSegment)}},interfaces_:function(){return[]},getClass:function(){return hi}}),e(ci.prototype,{hasChildren:function(){for(var t=0;t<2;t++)if(null!==this.subnode[t])return!0;return!1},isPrunable:function(){return!(this.hasChildren()||this.hasItems())},addAllItems:function(t){t.addAll(this.items);for(var e=0;e<2;e++)null!==this.subnode[e]&&this.subnode[e].addAllItems(t);return t},size:function(){for(var t=0,e=0;e<2;e++)null!==this.subnode[e]&&(t+=this.subnode[e].size());return t+this.items.size()},addAllItemsFromOverlapping:function(t,e){return null===t||this.isSearchMatch(t)?(e.addAll(this.items),null!==this.subnode[0]&&this.subnode[0].addAllItemsFromOverlapping(t,e),void(null!==this.subnode[1]&&this.subnode[1].addAllItemsFromOverlapping(t,e))):null},hasItems:function(){return!this.items.isEmpty()},remove:function(t,e){if(!this.isSearchMatch(t))return!1;for(var n=!1,i=0;i<2;i++)if(null!==this.subnode[i]&&(n=this.subnode[i].remove(t,e))){this.subnode[i].isPrunable()&&(this.subnode[i]=null);break}return n?n:n=this.items.remove(e)},getItems:function(){return this.items},depth:function(){for(var t=0,e=0;e<2;e++)if(null!==this.subnode[e]){var n=this.subnode[e].depth();n>t&&(t=n)}return t+1},nodeSize:function(){for(var t=0,e=0;e<2;e++)null!==this.subnode[e]&&(t+=this.subnode[e].nodeSize());return t+1},add:function(t){this.items.add(t)},interfaces_:function(){return[]},getClass:function(){return ci}}),ci.getSubnodeIndex=function(t,e){var n=-1;return t.min>=e&&(n=1),t.max<=e&&(n=0),n},e(fi.prototype,{expandToInclude:function(t){t.max>this.max&&(this.max=t.max),t.min<this.min&&(this.min=t.min)},getWidth:function(){return this.max-this.min},overlaps:function(){if(1===arguments.length){var t=arguments[0];return this.overlaps(t.min,t.max)}if(2===arguments.length){var e=arguments[0],n=arguments[1];return!(this.min>n||this.max<e)}},getMin:function(){return this.min},toString:function(){return"["+this.min+", "+this.max+"]"},contains:function(){if(1===arguments.length){if(arguments[0]instanceof fi){var t=arguments[0];return this.contains(t.min,t.max)}if("number"==typeof arguments[0]){var e=arguments[0];return e>=this.min&&e<=this.max}}else if(2===arguments.length){var n=arguments[0],i=arguments[1];return n>=this.min&&i<=this.max}},init:function(t,e){this.min=t,this.max=e,t>e&&(this.min=e,this.max=t)},getMax:function(){return this.max},interfaces_:function(){return[]},getClass:function(){return fi}}),gi.exponent=function(t){return di(64,t)-1023},gi.powerOf2=function(t){return Math.pow(2,t)},e(pi.prototype,{getInterval:function(){return this.interval},getLevel:function(){return this.level},computeKey:function(t){for(this.level=pi.computeLevel(t),this.interval=new fi,this.computeInterval(this.level,t);!this.interval.contains(t);)this.level+=1,this.computeInterval(this.level,t)},computeInterval:function(t,e){var n=gi.powerOf2(t);this.pt=Math.floor(e.getMin()/n)*n,this.interval.init(this.pt,this.pt+n)},getPoint:function(){return this.pt},interfaces_:function(){return[]},getClass:function(){return pi}}),pi.computeLevel=function(t){var e=t.getWidth(),n=gi.exponent(e)+1;return n},h(vi,ci),e(vi.prototype,{getInterval:function(){return this.interval},find:function(t){var e=ci.getSubnodeIndex(t,this.centre);if(e===-1)return this;if(null!==this.subnode[e]){var n=this.subnode[e];return n.find(t)}return this},insert:function(t){f.isTrue(null===this.interval||this.interval.contains(t.interval));var e=ci.getSubnodeIndex(t.interval,this.centre);if(t.level===this.level-1)this.subnode[e]=t;else{var n=this.createSubnode(e);n.insert(t),this.subnode[e]=n}},isSearchMatch:function(t){return t.overlaps(this.interval)},getSubnode:function(t){return null===this.subnode[t]&&(this.subnode[t]=this.createSubnode(t)),this.subnode[t]},getNode:function(t){var e=ci.getSubnodeIndex(t,this.centre);if(e!==-1){var n=this.getSubnode(e);return n.getNode(t)}return this},createSubnode:function(t){var e=0,n=0;switch(t){case 0:e=this.interval.getMin(),n=this.centre;break;case 1:e=this.centre,n=this.interval.getMax()}var i=new fi(e,n),r=new vi(i,this.level-1);return r},interfaces_:function(){return[]},getClass:function(){return vi}}),vi.createNode=function(t){var e=new pi(t),n=new vi(e.getInterval(),e.getLevel());return n},vi.createExpanded=function(t,e){var n=new fi(e);null!==t&&n.expandToInclude(t.interval);var i=vi.createNode(n);return null!==t&&i.insert(t),i},e(mi.prototype,{interfaces_:function(){return[]},getClass:function(){return mi}});mi.isZeroWidth=function(t,e){var n=e-t;if(0===n)return!0;var i=Math.max(Math.abs(t),Math.abs(e)),r=n/i,s=gi.exponent(r);return s<=mi.MIN_BINARY_EXPONENT};mi.MIN_BINARY_EXPONENT=-50,h(yi,ci),e(yi.prototype,{insert:function(t,e){var n=ci.getSubnodeIndex(t,yi.origin);if(n===-1)return this.add(e),null;var i=this.subnode[n];if(null===i||!i.getInterval().contains(t)){var r=vi.createExpanded(i,t);this.subnode[n]=r}this.insertContained(this.subnode[n],t,e)},isSearchMatch:function(t){return!0},insertContained:function(t,e,n){f.isTrue(t.getInterval().contains(e));var i=mi.isZeroWidth(e.getMin(),e.getMax()),r=null;r=i?t.find(e):t.getNode(e),r.add(n)},interfaces_:function(){return[]},getClass:function(){return yi}}),yi.origin=0,e(xi.prototype,{size:function(){return null!==this.root?this.root.size():0},insert:function(t,e){this.collectStats(t);var n=xi.ensureExtent(t,this.minExtent);this.root.insert(n,e)},query:function(){if(1===arguments.length){if("number"==typeof arguments[0]){var t=arguments[0];return this.query(new fi(t,t))}if(arguments[0]instanceof fi){var e=arguments[0],n=new I;return this.query(e,n),n}}else if(2===arguments.length){var i=arguments[0],r=arguments[1];this.root.addAllItemsFromOverlapping(i,r)}},iterator:function(){var t=new I;return this.root.addAllItems(t),t.iterator()},remove:function(t,e){var n=xi.ensureExtent(t,this.minExtent);return this.root.remove(n,e)},collectStats:function(t){var e=t.getWidth();e<this.minExtent&&e>0&&(this.minExtent=e)},depth:function(){return null!==this.root?this.root.depth():0},nodeSize:function(){return null!==this.root?this.root.nodeSize():0},interfaces_:function(){return[]},getClass:function(){return xi}}),xi.ensureExtent=function(t,e){var n=t.getMin(),i=t.getMax();return n!==i?t:(n===i&&(n-=e/2,i=n+e/2),new fi(n,i))},e(Ei.prototype,{isInside:function(t){},interfaces_:function(){return[]},getClass:function(){return Ei}}),e(Ii.prototype,{testLineSegment:function(t,e){var n=null,i=null,r=null,s=null,o=null,a=e.p0,u=e.p1;i=a.x-t.x,r=a.y-t.y,s=u.x-t.x,o=u.y-t.y,(r>0&&o<=0||o>0&&r<=0)&&(n=ue.signOfDet2x2(i,r,s,o)/(o-r),0<n&&this.crossings++)},buildIndex:function(){this.tree=new xi;for(var t=H.removeRepeatedPoints(this.ring.getCoordinates()),e=$e.getChains(t),n=0;n<e.size();n++){var i=e.get(n),r=i.getEnvelope();this.interval.min=r.getMinY(),this.interval.max=r.getMaxY(),this.tree.insert(this.interval,i)}},testMonotoneChain:function(t,e,n){n.select(t,e)},isInside:function(t){this.crossings=0;var e=new C(r.NEGATIVE_INFINITY,r.POSITIVE_INFINITY,t.y,t.y);this.interval.min=t.y,this.interval.max=t.y;for(var n=this.tree.query(this.interval),i=new Ni(this,t),s=n.iterator();s.hasNext();){var o=s.next();this.testMonotoneChain(e,i,o)}return this.crossings%2===1},interfaces_:function(){return[Ei]},getClass:function(){return Ii}}),h(Ni,hi),e(Ni.prototype,{select:function(){if(1!==arguments.length)return hi.prototype.select.apply(this,arguments);var t=arguments[0];this.mcp.testLineSegment(this.p,t)},interfaces_:function(){return[]},getClass:function(){return Ni}}),Ii.MCSelecter=Ni,e(Ci.prototype,{interfaces_:function(){return[]},getClass:function(){return Ci}}),Ci.toDegrees=function(t){return 180*t/Math.PI},Ci.normalize=function(t){for(;t>Math.PI;)t-=Ci.PI_TIMES_2;for(;t<=-Math.PI;)t+=Ci.PI_TIMES_2;return t},Ci.angle=function(){if(1===arguments.length){var t=arguments[0];return Math.atan2(t.y,t.x)}if(2===arguments.length){var e=arguments[0],n=arguments[1],i=n.x-e.x,r=n.y-e.y;return Math.atan2(r,i)}},Ci.isAcute=function(t,e,n){var i=t.x-e.x,r=t.y-e.y,s=n.x-e.x,o=n.y-e.y,a=i*s+r*o;return a>0},Ci.isObtuse=function(t,e,n){var i=t.x-e.x,r=t.y-e.y,s=n.x-e.x,o=n.y-e.y,a=i*s+r*o;return a<0},Ci.interiorAngle=function(t,e,n){var i=Ci.angle(e,t),r=Ci.angle(e,n);return Math.abs(r-i)},Ci.normalizePositive=function(t){if(t<0){for(;t<0;)t+=Ci.PI_TIMES_2;t>=Ci.PI_TIMES_2&&(t=0)}else{for(;t>=Ci.PI_TIMES_2;)t-=Ci.PI_TIMES_2;t<0&&(t=0)}return t},Ci.angleBetween=function(t,e,n){var i=Ci.angle(e,t),r=Ci.angle(e,n);return Ci.diff(i,r)},Ci.diff=function(t,e){var n=null;return n=t<e?e-t:t-e,n>Math.PI&&(n=2*Math.PI-n),n},Ci.toRadians=function(t){return t*Math.PI/180},Ci.getTurn=function(t,e){var n=Math.sin(e-t);return n>0?Ci.COUNTERCLOCKWISE:n<0?Ci.CLOCKWISE:Ci.NONE},Ci.angleBetweenOriented=function(t,e,n){var i=Ci.angle(e,t),r=Ci.angle(e,n),s=r-i;return s<=-Math.PI?s+Ci.PI_TIMES_2:s>Math.PI?s-Ci.PI_TIMES_2:s},Ci.PI_TIMES_2=2*Math.PI,Ci.PI_OVER_2=Math.PI/2,Ci.PI_OVER_4=Math.PI/4,Ci.COUNTERCLOCKWISE=he.COUNTERCLOCKWISE,Ci.CLOCKWISE=he.CLOCKWISE,Ci.NONE=he.COLLINEAR,e(Si.prototype,{area:function(){return Si.area(this.p0,this.p1,this.p2)},signedArea:function(){return Si.signedArea(this.p0,this.p1,this.p2)},interpolateZ:function(t){if(null===t)throw new i("Supplied point is null.");return Si.interpolateZ(t,this.p0,this.p1,this.p2)},longestSideLength:function(){return Si.longestSideLength(this.p0,this.p1,this.p2)},isAcute:function(){return Si.isAcute(this.p0,this.p1,this.p2)},circumcentre:function(){return Si.circumcentre(this.p0,this.p1,this.p2)},area3D:function(){return Si.area3D(this.p0,this.p1,this.p2)},centroid:function(){return Si.centroid(this.p0,this.p1,this.p2)},inCentre:function(){return Si.inCentre(this.p0,this.p1,this.p2)},interfaces_:function(){return[]},getClass:function(){return Si}}),Si.area=function(t,e,n){return Math.abs(((n.x-t.x)*(e.y-t.y)-(e.x-t.x)*(n.y-t.y))/2)},Si.signedArea=function(t,e,n){return((n.x-t.x)*(e.y-t.y)-(e.x-t.x)*(n.y-t.y))/2},Si.det=function(t,e,n,i){return t*i-e*n},Si.interpolateZ=function(t,e,n,i){var r=e.x,s=e.y,o=n.x-r,a=i.x-r,u=n.y-s,l=i.y-s,h=o*l-a*u,c=t.x-r,f=t.y-s,g=(l*c-a*f)/h,d=(-u*c+o*f)/h,p=e.z+g*(n.z-e.z)+d*(i.z-e.z);return p},Si.longestSideLength=function(t,e,n){var i=t.distance(e),r=e.distance(n),s=n.distance(t),o=i;return r>o&&(o=r),s>o&&(o=s),o},Si.isAcute=function(t,e,n){return!!Ci.isAcute(t,e,n)&&(!!Ci.isAcute(e,n,t)&&!!Ci.isAcute(n,t,e))},Si.circumcentre=function(t,e,n){var i=n.x,r=n.y,s=t.x-i,o=t.y-r,a=e.x-i,u=e.y-r,l=2*Si.det(s,o,a,u),h=Si.det(o,s*s+o*o,u,a*a+u*u),c=Si.det(s,s*s+o*o,a,a*a+u*u),f=i-h/l,d=r+c/l;return new g(f,d)},Si.perpendicularBisector=function(t,e){var n=e.x-t.x,i=e.y-t.y,r=new F(t.x+n/2,t.y+i/2,1),s=new F(t.x-i+n/2,t.y+n+i/2,1);return new F(r,s)},Si.angleBisector=function(t,e,n){var i=e.distance(t),r=e.distance(n),s=i/(i+r),o=n.x-t.x,a=n.y-t.y,u=new g(t.x+s*o,t.y+s*a);return u},Si.area3D=function(t,e,n){var i=e.x-t.x,r=e.y-t.y,s=e.z-t.z,o=n.x-t.x,a=n.y-t.y,u=n.z-t.z,l=r*u-s*a,h=s*o-i*u,c=i*a-r*o,f=l*l+h*h+c*c,g=Math.sqrt(f)/2;return g},Si.centroid=function(t,e,n){var i=(t.x+e.x+n.x)/3,r=(t.y+e.y+n.y)/3;return new g(i,r)},Si.inCentre=function(t,e,n){var i=e.distance(n),r=t.distance(n),s=t.distance(e),o=i+r+s,a=(i*t.x+r*e.x+s*n.x)/o,u=(i*t.y+r*e.y+s*n.y)/o;return new g(a,u)},e(wi.prototype,{getRadius:function(){return this.compute(),this.radius},getDiameter:function(){switch(this.compute(),this.extremalPts.length){case 0:return this.input.getFactory().createLineString();case 1:return this.input.getFactory().createPoint(this.centre)}var t=this.extremalPts[0],e=this.extremalPts[1];return this.input.getFactory().createLineString([t,e])},getExtremalPoints:function(){return this.compute(),this.extremalPts},computeCirclePoints:function(){if(this.input.isEmpty())return this.extremalPts=new Array(0).fill(null),null;if(1===this.input.getNumPoints()){var t=this.input.getCoordinates();return this.extremalPts=[new g(t[0])],null}var e=this.input.convexHull(),n=e.getCoordinates(),t=n;if(n[0].equals2D(n[n.length-1])&&(t=new Array(n.length-1).fill(null),H.copyDeep(n,0,t,0,n.length-1)),t.length<=2)return this.extremalPts=H.copyDeep(t),null;for(var i=wi.lowestPoint(t),r=wi.pointWitMinAngleWithX(t,i),s=0;s<t.length;s++){var o=wi.pointWithMinAngleWithSegment(t,i,r);if(Ci.isObtuse(i,o,r))return this.extremalPts=[new g(i),new g(r)],null;if(Ci.isObtuse(o,i,r))i=o;else{if(!Ci.isObtuse(o,r,i))return this.extremalPts=[new g(i),new g(r),new g(o)],null;r=o}}f.shouldNeverReachHere("Logic failure in Minimum Bounding Circle algorithm!")},compute:function(){return null!==this.extremalPts?null:(this.computeCirclePoints(),this.computeCentre(),void(null!==this.centre&&(this.radius=this.centre.distance(this.extremalPts[0]))))},getFarthestPoints:function(){switch(this.compute(),this.extremalPts.length){case 0:return this.input.getFactory().createLineString();case 1:return this.input.getFactory().createPoint(this.centre)}var t=this.extremalPts[0],e=this.extremalPts[this.extremalPts.length-1];return this.input.getFactory().createLineString([t,e])},getCircle:function(){if(this.compute(),null===this.centre)return this.input.getFactory().createPolygon();var t=this.input.getFactory().createPoint(this.centre);return 0===this.radius?t:t.buffer(this.radius)},getCentre:function(){return this.compute(),this.centre},computeCentre:function(){switch(this.extremalPts.length){case 0:this.centre=null;break;case 1:this.centre=this.extremalPts[0];break;case 2:this.centre=new g((this.extremalPts[0].x+this.extremalPts[1].x)/2,(this.extremalPts[0].y+this.extremalPts[1].y)/2);break;case 3:this.centre=Si.circumcentre(this.extremalPts[0],this.extremalPts[1],this.extremalPts[2])}},interfaces_:function(){return[]},getClass:function(){return wi}}),wi.pointWitMinAngleWithX=function(t,e){for(var n=r.MAX_VALUE,i=null,s=0;s<t.length;s++){var o=t[s];if(o!==e){var a=o.x-e.x,u=o.y-e.y;u<0&&(u=-u);var l=Math.sqrt(a*a+u*u),h=u/l;h<n&&(n=h,i=o)}}return i},wi.lowestPoint=function(t){for(var e=t[0],n=1;n<t.length;n++)t[n].y<e.y&&(e=t[n]);return e},wi.pointWithMinAngleWithSegment=function(t,e,n){for(var i=r.MAX_VALUE,s=null,o=0;o<t.length;o++){var a=t[o];if(a!==e&&a!==n){var u=Ci.angleBetween(e,a,n);u<i&&(i=u,s=a)}}return s},e(Li.prototype,{getWidthCoordinate:function(){return this.computeMinimumDiameter(),this.minWidthPt},getSupportingSegment:function(){return this.computeMinimumDiameter(),this.inputGeom.getFactory().createLineString([this.minBaseSeg.p0,this.minBaseSeg.p1])},getDiameter:function(){if(this.computeMinimumDiameter(),null===this.minWidthPt)return this.inputGeom.getFactory().createLineString(null);var t=this.minBaseSeg.project(this.minWidthPt);return this.inputGeom.getFactory().createLineString([t,this.minWidthPt])},computeWidthConvex:function(t){t instanceof Tt?this.convexHullPts=t.getExteriorRing().getCoordinates():this.convexHullPts=t.getCoordinates(),0===this.convexHullPts.length?(this.minWidth=0,this.minWidthPt=null,this.minBaseSeg=null):1===this.convexHullPts.length?(this.minWidth=0,this.minWidthPt=this.convexHullPts[0],this.minBaseSeg.p0=this.convexHullPts[0],this.minBaseSeg.p1=this.convexHullPts[0]):2===this.convexHullPts.length||3===this.convexHullPts.length?(this.minWidth=0,this.minWidthPt=this.convexHullPts[0],this.minBaseSeg.p0=this.convexHullPts[0],this.minBaseSeg.p1=this.convexHullPts[1]):this.computeConvexRingMinDiameter(this.convexHullPts)},computeConvexRingMinDiameter:function(t){this.minWidth=r.MAX_VALUE;for(var e=1,n=new ce,i=0;i<t.length-1;i++)n.p0=t[i],n.p1=t[i+1],e=this.findMaxPerpDistance(t,n,e)},computeMinimumDiameter:function(){if(null!==this.minWidthPt)return null;if(this.isConvex)this.computeWidthConvex(this.inputGeom);else{var t=new me(this.inputGeom).getConvexHull();this.computeWidthConvex(t)}},getLength:function(){return this.computeMinimumDiameter(),this.minWidth},findMaxPerpDistance:function(t,e,n){for(var i=e.distancePerpendicular(t[n]),r=i,s=n,o=s;r>=i;)i=r,s=o,o=Li.nextIndex(t,s),r=e.distancePerpendicular(t[o]);return i<this.minWidth&&(this.minPtIndex=s,this.minWidth=i,this.minWidthPt=t[this.minPtIndex],this.minBaseSeg=new ce(e)),s},getMinimumRectangle:function(){if(this.computeMinimumDiameter(),0===this.minWidth)return this.minBaseSeg.p0.equals2D(this.minBaseSeg.p1)?this.inputGeom.getFactory().createPoint(this.minBaseSeg.p0):this.minBaseSeg.toGeometry(this.inputGeom.getFactory());for(var t=this.minBaseSeg.p1.x-this.minBaseSeg.p0.x,e=this.minBaseSeg.p1.y-this.minBaseSeg.p0.y,n=r.MAX_VALUE,i=-r.MAX_VALUE,s=r.MAX_VALUE,o=-r.MAX_VALUE,a=0;a<this.convexHullPts.length;a++){var u=Li.computeC(t,e,this.convexHullPts[a]);u>i&&(i=u),u<n&&(n=u);var l=Li.computeC(-e,t,this.convexHullPts[a]);l>o&&(o=l),l<s&&(s=l)}var h=Li.computeSegmentForLine(-t,-e,o),c=Li.computeSegmentForLine(-t,-e,s),f=Li.computeSegmentForLine(-e,t,i),g=Li.computeSegmentForLine(-e,t,n),d=f.lineIntersection(h),p=g.lineIntersection(h),v=g.lineIntersection(c),m=f.lineIntersection(c),y=this.inputGeom.getFactory().createLinearRing([d,p,v,m,d]);return this.inputGeom.getFactory().createPolygon(y,null)},interfaces_:function(){return[]},getClass:function(){return Li}}),Li.nextIndex=function(t,e){return e++,e>=t.length&&(e=0),e},Li.computeC=function(t,e,n){return t*n.y-e*n.x},Li.getMinimumDiameter=function(t){return new Li(t).getDiameter()},Li.getMinimumRectangle=function(t){return new Li(t).getMinimumRectangle()},Li.computeSegmentForLine=function(t,e,n){var i=null,r=null;return Math.abs(e)>Math.abs(t)?(i=new g(0,n/e),r=new g(1,n/e-t/e)):(i=new g(n/t,0),r=new g(n/t-e/t,1)),new ce(i,r)};var co=Object.freeze({Centroid:ge,CGAlgorithms:he,ConvexHull:me,InteriorPointArea:oi,InteriorPointLine:ui,InteriorPointPoint:li,RobustLineIntersector:ae,MCPointInRing:Ii,MinimumBoundingCircle:wi,MinimumDiameter:Li});e(Ri.prototype,{getResultGeometry:function(){return new Ti(this.distanceTolerance).transform(this.inputGeom)},setDistanceTolerance:function(t){if(t<=0)throw new i("Tolerance must be positive");this.distanceTolerance=t},interfaces_:function(){return[]},getClass:function(){return Ri}}),Ri.densifyPoints=function(t,e,n){for(var i=new ce,r=new N,s=0;s<t.length-1;s++){i.p0=t[s],i.p1=t[s+1],r.add(i.p0,!1);var o=i.getLength(),a=Math.trunc(o/e)+1;if(a>1)for(var u=o/a,l=1;l<a;l++){var h=l*u/o,c=i.pointAlong(h);n.makePrecise(c),r.add(c,!1)}}return r.add(t[t.length-1],!1),r.toCoordinateArray()},Ri.densify=function(t,e){var n=new Ri(t);return n.setDistanceTolerance(e),n.getResultGeometry()},h(Ti,xe),e(Ti.prototype,{transformMultiPolygon:function(t,e){var n=xe.prototype.transformMultiPolygon.call(this,t,e);return this.createValidArea(n)},transformPolygon:function(t,e){var n=xe.prototype.transformPolygon.call(this,t,e);return e instanceof Ot?n:this.createValidArea(n)},transformCoordinates:function(t,e){var n=t.toCoordinateArray(),i=Ri.densifyPoints(n,this.distanceTolerance,e.getPrecisionModel());return e instanceof St&&1===i.length&&(i=new Array(0).fill(null)),this.factory.getCoordinateSequenceFactory().create(i)},createValidArea:function(t){return t.buffer(0)},interfaces_:function(){return[]},getClass:function(){return Ti}}),Ri.DensifyTransformer=Ti;var fo=Object.freeze({Densifier:Ri});e(Pi.prototype,{find:function(t){var e=this;do{if(null===e)return null;if(e.dest().equals2D(t))return e;e=e.oNext()}while(e!==this);return null},dest:function(){return this._sym._orig},oNext:function(){return this._sym._next},insert:function(t){if(this.oNext()===this)return this.insertAfter(t),null;var e=this.compareTo(t),n=this;do{var i=n.oNext(),r=i.compareTo(t);if(r!==e||i===this)return n.insertAfter(t),null;n=i}while(n!==this);f.shouldNeverReachHere()},insertAfter:function(t){f.equals(this._orig,t.orig());var e=this.oNext();this._sym.setNext(t),t.sym().setNext(e)},degree:function t(){var t=0,e=this;do t++,e=e.oNext();while(e!==this);return t},equals:function(){if(2===arguments.length){var t=arguments[0],e=arguments[1];return this._orig.equals2D(t)&&this._sym._orig.equals(e)}},deltaY:function(){return this._sym._orig.y-this._orig.y},sym:function(){return this._sym},prev:function(){return this._sym.next()._sym},compareAngularDirection:function(t){var e=this.deltaX(),n=this.deltaY(),i=t.deltaX(),r=t.deltaY();if(e===i&&n===r)return 0;var s=Je.quadrant(e,n),o=Je.quadrant(i,r);return s>o?1:s<o?-1:he.computeOrientation(t._orig,t.dest(),this.dest())},prevNode:function(){for(var t=this;2===t.degree();)if(t=t.prev(),t===this)return null;return t},compareTo:function(t){var e=t,n=this.compareAngularDirection(e);return n},next:function(){return this._next},setSym:function(t){this._sym=t},orig:function(){return this._orig},toString:function(){return"HE("+this._orig.x+" "+this._orig.y+", "+this._sym._orig.x+" "+this._sym._orig.y+")"},setNext:function(t){this._next=t},init:function(t){this.setSym(t),t.setSym(this),this.setNext(t),t.setNext(this)},deltaX:function(){return this._sym._orig.x-this._orig.x},interfaces_:function(){return[]},getClass:function(){return Pi}}),Pi.init=function(t,e){if(null!==t._sym||null!==e._sym||null!==t._next||null!==e._next)throw new IllegalStateException("Edges are already initialized");return t.init(e),t},Pi.create=function(t,e){var n=new Pi(t),i=new Pi(e);return n.init(i),n},h(bi,Pi),e(bi.prototype,{mark:function(){this._isMarked=!0},setMark:function(t){this._isMarked=t},isMarked:function(){return this._isMarked},interfaces_:function(){return[]},getClass:function(){return bi}}),bi.setMarkBoth=function(t,e){t.setMark(e),t.sym().setMark(e)},bi.isMarked=function(t){return t.isMarked()},bi.setMark=function(t,e){t.setMark(e)},bi.markBoth=function(t){t.mark(),t.sym().mark()},bi.mark=function(t){t.mark()},e(Oi.prototype,{insert:function(t,e,n){var i=this.create(t,e);null!==n?n.insert(i):this.vertexMap.put(t,i);var r=this.vertexMap.get(e);return null!==r?r.insert(i.sym()):this.vertexMap.put(e,i.sym()),i},create:function(t,e){var n=this.createEdge(t),i=this.createEdge(e);return Pi.init(n,i),n},createEdge:function(t){return new Pi(t)},addEdge:function(t,e){if(!Oi.isValidEdge(t,e))return null;var n=this.vertexMap.get(t),i=null;if(null!==n&&(i=n.find(e)),null!==i)return i;var r=this.insert(t,e,n);return r},getVertexEdges:function(){return this.vertexMap.values()},findEdge:function(t,e){var n=this.vertexMap.get(t);return null===n?null:n.find(e)},interfaces_:function(){
return[]},getClass:function(){return Oi}}),Oi.isValidEdge=function(t,e){var n=e.compareTo(t);return 0!==n},h(_i,bi),e(_i.prototype,{setStart:function(){this._isStart=!0},isStart:function(){return this._isStart},interfaces_:function(){return[]},getClass:function(){return _i}}),h(Mi,Oi),e(Mi.prototype,{createEdge:function(t){return new _i(t)},interfaces_:function(){return[]},getClass:function(){return Mi}}),e(Di.prototype,{addLine:function(t){this.lines.add(this.factory.createLineString(t.toCoordinateArray()))},updateRingStartEdge:function(t){return t.isStart()||(t=t.sym(),t.isStart())?null===this.ringStartEdge?(this.ringStartEdge=t,null):void(t.orig().compareTo(this.ringStartEdge.orig())<0&&(this.ringStartEdge=t)):null},getResult:function(){return null===this.result&&this.computeResult(),this.result},process:function(t){var e=t.prevNode();null===e&&(e=t),this.stackEdges(e),this.buildLines()},buildRing:function(t){var e=new N,n=t;for(e.add(n.orig().copy(),!1);2===n.sym().degree();){var i=n.next();if(i===t)break;e.add(i.orig().copy(),!1),n=i}e.add(n.dest().copy(),!1),this.addLine(e)},buildLine:function(t){var e=new N,n=t;for(this.ringStartEdge=null,bi.markBoth(n),e.add(n.orig().copy(),!1);2===n.sym().degree();){this.updateRingStartEdge(n);var i=n.next();if(i===t)return this.buildRing(this.ringStartEdge),null;e.add(i.orig().copy(),!1),n=i,bi.markBoth(n)}e.add(n.dest().copy(),!1),this.stackEdges(n.sym()),this.addLine(e)},stackEdges:function(t){var e=t;do bi.isMarked(e)||this.nodeEdgeStack.add(e),e=e.oNext();while(e!==t)},computeResult:function(){for(var t=this.graph.getVertexEdges(),e=t.iterator();e.hasNext();){var n=e.next();bi.isMarked(n)||this.process(n)}this.result=this.factory.buildGeometry(this.lines)},buildLines:function(){for(;!this.nodeEdgeStack.empty();){var t=this.nodeEdgeStack.pop();bi.isMarked(t)||this.buildLine(t)}},add:function(){if(arguments[0]instanceof B){var t=arguments[0];t.apply({interfaces_:function(){return[q]},filter:function(t){t instanceof St&&this.add(t)}})}else if(R(arguments[0],v))for(var e=arguments[0],n=e.iterator();n.hasNext();){var i=n.next();this.add(i)}else if(arguments[0]instanceof St){var r=arguments[0];null===this.factory&&(this.factory=r.getFactory());for(var s=r.getCoordinateSequence(),o=!1,n=1;n<s.size();n++){var a=this.graph.addEdge(s.getCoordinate(n-1),s.getCoordinate(n));null!==a&&(o||(a.setStart(),o=!0))}}},interfaces_:function(){return[]},getClass:function(){return Di}}),Di.dissolve=function(t){var e=new Di;return e.add(t),e.getResult()};var go=Object.freeze({LineDissolver:Di}),po=Object.freeze({GeometryGraph:$n});e(Ai.prototype,{hasChildren:function(){for(var t=0;t<4;t++)if(null!==this.subnode[t])return!0;return!1},isPrunable:function(){return!(this.hasChildren()||this.hasItems())},addAllItems:function(t){t.addAll(this.items);for(var e=0;e<4;e++)null!==this.subnode[e]&&this.subnode[e].addAllItems(t);return t},getNodeCount:function(){for(var t=0,e=0;e<4;e++)null!==this.subnode[e]&&(t+=this.subnode[e].size());return t+1},size:function(){for(var t=0,e=0;e<4;e++)null!==this.subnode[e]&&(t+=this.subnode[e].size());return t+this.items.size()},addAllItemsFromOverlapping:function(t,e){if(!this.isSearchMatch(t))return null;e.addAll(this.items);for(var n=0;n<4;n++)null!==this.subnode[n]&&this.subnode[n].addAllItemsFromOverlapping(t,e)},visitItems:function(t,e){for(var n=this.items.iterator();n.hasNext();)e.visitItem(n.next())},hasItems:function(){return!this.items.isEmpty()},remove:function(t,e){if(!this.isSearchMatch(t))return!1;for(var n=!1,i=0;i<4;i++)if(null!==this.subnode[i]&&(n=this.subnode[i].remove(t,e))){this.subnode[i].isPrunable()&&(this.subnode[i]=null);break}return n?n:n=this.items.remove(e)},visit:function(t,e){if(!this.isSearchMatch(t))return null;this.visitItems(t,e);for(var n=0;n<4;n++)null!==this.subnode[n]&&this.subnode[n].visit(t,e)},getItems:function(){return this.items},depth:function(){for(var t=0,e=0;e<4;e++)if(null!==this.subnode[e]){var n=this.subnode[e].depth();n>t&&(t=n)}return t+1},isEmpty:function t(){var t=!0;this.items.isEmpty()||(t=!1);for(var e=0;e<4;e++)null!==this.subnode[e]&&(this.subnode[e].isEmpty()||(t=!1));return t},add:function(t){this.items.add(t)},interfaces_:function(){return[u]},getClass:function(){return Ai}}),Ai.getSubnodeIndex=function(t,e,n){var i=-1;return t.getMinX()>=e&&(t.getMinY()>=n&&(i=3),t.getMaxY()<=n&&(i=1)),t.getMaxX()<=e&&(t.getMinY()>=n&&(i=2),t.getMaxY()<=n&&(i=0)),i},e(Fi.prototype,{getLevel:function(){return this.level},computeKey:function(){if(1===arguments.length){var t=arguments[0];for(this.level=Fi.computeQuadLevel(t),this.env=new C,this.computeKey(this.level,t);!this.env.contains(t);)this.level+=1,this.computeKey(this.level,t)}else if(2===arguments.length){var e=arguments[0],n=arguments[1],i=gi.powerOf2(e);this.pt.x=Math.floor(n.getMinX()/i)*i,this.pt.y=Math.floor(n.getMinY()/i)*i,this.env.init(this.pt.x,this.pt.x+i,this.pt.y,this.pt.y+i)}},getEnvelope:function(){return this.env},getCentre:function(){return new g((this.env.getMinX()+this.env.getMaxX())/2,(this.env.getMinY()+this.env.getMaxY())/2)},getPoint:function(){return this.pt},interfaces_:function(){return[]},getClass:function(){return Fi}}),Fi.computeQuadLevel=function(t){var e=t.getWidth(),n=t.getHeight(),i=e>n?e:n,r=gi.exponent(i)+1;return r},h(Gi,Ai),e(Gi.prototype,{find:function(t){var e=Ai.getSubnodeIndex(t,this.centrex,this.centrey);if(e===-1)return this;if(null!==this.subnode[e]){var n=this.subnode[e];return n.find(t)}return this},isSearchMatch:function(t){return this.env.intersects(t)},getSubnode:function(t){return null===this.subnode[t]&&(this.subnode[t]=this.createSubnode(t)),this.subnode[t]},getEnvelope:function(){return this.env},getNode:function(t){var e=Ai.getSubnodeIndex(t,this.centrex,this.centrey);if(e!==-1){var n=this.getSubnode(e);return n.getNode(t)}return this},createSubnode:function(t){var e=0,n=0,i=0,r=0;switch(t){case 0:e=this.env.getMinX(),n=this.centrex,i=this.env.getMinY(),r=this.centrey;break;case 1:e=this.centrex,n=this.env.getMaxX(),i=this.env.getMinY(),r=this.centrey;break;case 2:e=this.env.getMinX(),n=this.centrex,i=this.centrey,r=this.env.getMaxY();break;case 3:e=this.centrex,n=this.env.getMaxX(),i=this.centrey,r=this.env.getMaxY()}var s=new C(e,n,i,r),o=new Gi(s,this.level-1);return o},insertNode:function(t){f.isTrue(null===this.env||this.env.contains(t.env));var e=Ai.getSubnodeIndex(t.env,this.centrex,this.centrey);if(t.level===this.level-1)this.subnode[e]=t;else{var n=this.createSubnode(e);n.insertNode(t),this.subnode[e]=n}},interfaces_:function(){return[]},getClass:function(){return Gi}}),Gi.createNode=function(t){var e=new Fi(t),n=new Gi(e.getEnvelope(),e.getLevel());return n},Gi.createExpanded=function(t,e){var n=new C(e);null!==t&&n.expandToInclude(t.env);var i=Gi.createNode(n);return null!==t&&i.insertNode(t),i},h(qi,Ai),e(qi.prototype,{insert:function(t,e){var n=Ai.getSubnodeIndex(t,qi.origin.x,qi.origin.y);if(n===-1)return this.add(e),null;var i=this.subnode[n];if(null===i||!i.getEnvelope().contains(t)){var r=Gi.createExpanded(i,t);this.subnode[n]=r}this.insertContained(this.subnode[n],t,e)},isSearchMatch:function(t){return!0},insertContained:function(t,e,n){f.isTrue(t.getEnvelope().contains(e));var i=mi.isZeroWidth(e.getMinX(),e.getMaxX()),r=mi.isZeroWidth(e.getMinY(),e.getMaxY()),s=null;s=i||r?t.find(e):t.getNode(e),s.add(n)},interfaces_:function(){return[]},getClass:function(){return qi}}),qi.origin=new g(0,0),e(Bi.prototype,{size:function(){return null!==this.root?this.root.size():0},insert:function(t,e){this.collectStats(t);var n=Bi.ensureExtent(t,this.minExtent);this.root.insert(n,e)},query:function(){if(1===arguments.length){var t=arguments[0],e=new Yn;return this.query(t,e),e.getItems()}if(2===arguments.length){var n=arguments[0],i=arguments[1];this.root.visit(n,i)}},queryAll:function(){var t=new I;return this.root.addAllItems(t),t},remove:function(t,e){var n=Bi.ensureExtent(t,this.minExtent);return this.root.remove(n,e)},collectStats:function(t){var e=t.getWidth();e<this.minExtent&&e>0&&(this.minExtent=e);var n=t.getHeight();n<this.minExtent&&n>0&&(this.minExtent=n)},depth:function(){return null!==this.root?this.root.depth():0},isEmpty:function(){return null===this.root},interfaces_:function(){return[Fe,u]},getClass:function(){return Bi}}),Bi.ensureExtent=function(t,e){var n=t.getMinX(),i=t.getMaxX(),r=t.getMinY(),s=t.getMaxY();return n!==i&&r!==s?t:(n===i&&(n-=e/2,i=n+e/2),r===s&&(r-=e/2,s=r+e/2),new C(n,i,r,s))},Bi.serialVersionUID=-0x678b60c967a25400;var vo=Object.freeze({Quadtree:Bi}),mo=Object.freeze({STRtree:ke}),yo=Object.freeze({quadtree:vo,strtree:mo}),xo=["Point","MultiPoint","LineString","MultiLineString","Polygon","MultiPolygon"];e(zi.prototype,{read:function(t){var e=void 0;e="string"==typeof t?JSON.parse(t):t;var n=e.type;if(!Eo[n])throw new Error("Unknown GeoJSON type: "+e.type);return xo.indexOf(n)!==-1?Eo[n].apply(this,[e.coordinates]):"GeometryCollection"===n?Eo[n].apply(this,[e.geometries]):Eo[n].apply(this,[e])},write:function(t){var e=t.getGeometryType();if(!Io[e])throw new Error("Geometry is not supported");return Io[e].apply(this,[t])}});var Eo={Feature:function(t){var e={};for(var n in t)e[n]=t[n];if(t.geometry){var i=t.geometry.type;if(!Eo[i])throw new Error("Unknown GeoJSON type: "+t.type);e.geometry=this.read(t.geometry)}return t.bbox&&(e.bbox=Eo.bbox.apply(this,[t.bbox])),e},FeatureCollection:function(t){var e={};if(t.features){e.features=[];for(var n=0;n<t.features.length;++n)e.features.push(this.read(t.features[n]))}return t.bbox&&(e.bbox=this.parse.bbox.apply(this,[t.bbox])),e},coordinates:function t(e){for(var t=[],n=0;n<e.length;++n){var i=e[n];t.push(new g(i[0],i[1]))}return t},bbox:function(t){return this.geometryFactory.createLinearRing([new g(t[0],t[1]),new g(t[2],t[1]),new g(t[2],t[3]),new g(t[0],t[3]),new g(t[0],t[1])])},Point:function(t){var e=new g(t[0],t[1]);return this.geometryFactory.createPoint(e)},MultiPoint:function(t){for(var e=[],n=0;n<t.length;++n)e.push(Eo.Point.apply(this,[t[n]]));return this.geometryFactory.createMultiPoint(e)},LineString:function(t){var e=Eo.coordinates.apply(this,[t]);return this.geometryFactory.createLineString(e)},MultiLineString:function(t){for(var e=[],n=0;n<t.length;++n)e.push(Eo.LineString.apply(this,[t[n]]));return this.geometryFactory.createMultiLineString(e)},Polygon:function(t){for(var e=Eo.coordinates.apply(this,[t[0]]),n=this.geometryFactory.createLinearRing(e),i=[],r=1;r<t.length;++r){var s=t[r],o=Eo.coordinates.apply(this,[s]),a=this.geometryFactory.createLinearRing(o);i.push(a)}return this.geometryFactory.createPolygon(n,i)},MultiPolygon:function(t){for(var e=[],n=0;n<t.length;++n){var i=t[n];e.push(Eo.Polygon.apply(this,[i]))}return this.geometryFactory.createMultiPolygon(e)},GeometryCollection:function(t){for(var e=[],n=0;n<t.length;++n){var i=t[n];e.push(this.read(i))}return this.geometryFactory.createGeometryCollection(e)}},Io={coordinate:function(t){return[t.x,t.y]},Point:function(t){var e=Io.coordinate.apply(this,[t.getCoordinate()]);return{type:"Point",coordinates:e}},MultiPoint:function(t){for(var e=[],n=0;n<t.geometries.length;++n){var i=t.geometries[n],r=Io.Point.apply(this,[i]);e.push(r.coordinates)}return{type:"MultiPoint",coordinates:e}},LineString:function(t){for(var e=[],n=t.getCoordinates(),i=0;i<n.length;++i){var r=n[i];e.push(Io.coordinate.apply(this,[r]))}return{type:"LineString",coordinates:e}},MultiLineString:function(t){for(var e=[],n=0;n<t.geometries.length;++n){var i=t.geometries[n],r=Io.LineString.apply(this,[i]);e.push(r.coordinates)}return{type:"MultiLineString",coordinates:e}},Polygon:function(t){var e=[],n=Io.LineString.apply(this,[t.shell]);e.push(n.coordinates);for(var i=0;i<t.holes.length;++i){var r=t.holes[i],s=Io.LineString.apply(this,[r]);e.push(s.coordinates)}return{type:"Polygon",coordinates:e}},MultiPolygon:function(t){for(var e=[],n=0;n<t.geometries.length;++n){var i=t.geometries[n],r=Io.Polygon.apply(this,[i]);e.push(r.coordinates)}return{type:"MultiPolygon",coordinates:e}},GeometryCollection:function(t){for(var e=[],n=0;n<t.geometries.length;++n){var i=t.geometries[n],r=i.getGeometryType();e.push(Io[r].apply(this,[i]))}return{type:"GeometryCollection",geometries:e}}};e(Vi.prototype,{read:function(t){var e=this.parser.read(t);return this.precisionModel.getType()===ee.FIXED&&this.reducePrecision(e),e},reducePrecision:function(t){var e,n;if(t.coordinate)this.precisionModel.makePrecise(t.coordinate);else if(t.points)for(e=0,n=t.points.length;e<n;e++)this.precisionModel.makePrecise(t.points[e]);else if(t.geometries)for(e=0,n=t.geometries.length;e<n;e++)this.reducePrecision(t.geometries[e])}}),e(ki.prototype,{write:function(t){return this.parser.write(t)}}),e(Yi.prototype,{read:function(t){var e=this.parser.read(t);return this.precisionModel.getType()===ee.FIXED&&this.reducePrecision(e),e},reducePrecision:function(t){if(t.coordinate)this.precisionModel.makePrecise(t.coordinate);else if(t.points)for(var e=0,n=t.points.coordinates.length;e<n;e++)this.precisionModel.makePrecise(t.points.coordinates[e]);else if(t.geometries)for(var i=0,r=t.geometries.length;i<r;i++)this.reducePrecision(t.geometries[i])}}),e(Xi.prototype,{read:function(t){var e=this.ol;return t instanceof e.geom.Point?this.convertFromPoint(t):t instanceof e.geom.LineString?this.convertFromLineString(t):t instanceof e.geom.LinearRing?this.convertFromLinearRing(t):t instanceof e.geom.Polygon?this.convertFromPolygon(t):t instanceof e.geom.MultiPoint?this.convertFromMultiPoint(t):t instanceof e.geom.MultiLineString?this.convertFromMultiLineString(t):t instanceof e.geom.MultiPolygon?this.convertFromMultiPolygon(t):t instanceof e.geom.GeometryCollection?this.convertFromCollection(t):void 0},convertFromPoint:function(t){var e=t.getCoordinates();return this.geometryFactory.createPoint(new g(e[0],e[1]))},convertFromLineString:function(t){return this.geometryFactory.createLineString(t.getCoordinates().map(function(t){return new g(t[0],t[1])}))},convertFromLinearRing:function(t){return this.geometryFactory.createLinearRing(t.getCoordinates().map(function(t){return new g(t[0],t[1])}))},convertFromPolygon:function(t){for(var e=t.getLinearRings(),n=null,i=[],r=0;r<e.length;r++){var s=this.convertFromLinearRing(e[r]);0===r?n=s:i.push(s)}return this.geometryFactory.createPolygon(n,i)},convertFromMultiPoint:function(t){var e=t.getPoints().map(function(t){return this.convertFromPoint(t)},this);return this.geometryFactory.createMultiPoint(e)},convertFromMultiLineString:function(t){var e=t.getLineStrings().map(function(t){return this.convertFromLineString(t)},this);return this.geometryFactory.createMultiLineString(e)},convertFromMultiPolygon:function(t){var e=t.getPolygons().map(function(t){return this.convertFromPolygon(t)},this);return this.geometryFactory.createMultiPolygon(e)},convertFromCollection:function(t){var e=t.getGeometries().map(function(t){return this.read(t)},this);return this.geometryFactory.createGeometryCollection(e)},write:function(t){return"Point"===t.getGeometryType()?this.convertToPoint(t.getCoordinate()):"LineString"===t.getGeometryType()?this.convertToLineString(t):"LinearRing"===t.getGeometryType()?this.convertToLinearRing(t):"Polygon"===t.getGeometryType()?this.convertToPolygon(t):"MultiPoint"===t.getGeometryType()?this.convertToMultiPoint(t):"MultiLineString"===t.getGeometryType()?this.convertToMultiLineString(t):"MultiPolygon"===t.getGeometryType()?this.convertToMultiPolygon(t):"GeometryCollection"===t.getGeometryType()?this.convertToCollection(t):void 0},convertToPoint:function(t){return new this.ol.geom.Point([t.x,t.y])},convertToLineString:function(t){var e=t.points.coordinates.map(Ui);return new this.ol.geom.LineString(e)},convertToLinearRing:function(t){var e=t.points.coordinates.map(Ui);return new this.ol.geom.LinearRing(e)},convertToPolygon:function(t){for(var e=[t.shell.points.coordinates.map(Ui)],n=0;n<t.holes.length;n++)e.push(t.holes[n].points.coordinates.map(Ui));return new this.ol.geom.Polygon(e)},convertToMultiPoint:function(t){return new this.ol.geom.MultiPoint(t.getCoordinates().map(Ui))},convertToMultiLineString:function(t){for(var e=[],n=0;n<t.geometries.length;n++)e.push(this.convertToLineString(t.geometries[n]).getCoordinates());return new this.ol.geom.MultiLineString(e)},convertToMultiPolygon:function(t){for(var e=[],n=0;n<t.geometries.length;n++)e.push(this.convertToPolygon(t.geometries[n]).getCoordinates());return new this.ol.geom.MultiPolygon(e)},convertToCollection:function(t){for(var e=[],n=0;n<t.geometries.length;n++){var i=t.geometries[n];e.push(this.write(i))}return new this.ol.geom.GeometryCollection(e)}});var No=Object.freeze({GeoJSONReader:Vi,GeoJSONWriter:ki,OL3Parser:Xi,WKTReader:Yi,WKTWriter:se});e(Hi.prototype,{rescale:function(){if(R(arguments[0],v))for(var t=arguments[0],e=t.iterator();e.hasNext();){var n=e.next();this.rescale(n.getCoordinates())}else if(arguments[0]instanceof Array){var i=arguments[0],r=null,s=null;2===i.length&&(r=new g(i[0]),s=new g(i[1]));for(var e=0;e<i.length;e++)i[e].x=i[e].x/this.scaleFactor+this.offsetX,i[e].y=i[e].y/this.scaleFactor+this.offsetY;2===i.length&&i[0].equals2D(i[1])&&A.out.println(i)}},scale:function(){if(R(arguments[0],v)){for(var t=arguments[0],e=new I,n=t.iterator();n.hasNext();){var i=n.next();e.add(new Ke(this.scale(i.getCoordinates()),i.getData()))}return e}if(arguments[0]instanceof Array){for(var r=arguments[0],s=new Array(r.length).fill(null),n=0;n<r.length;n++)s[n]=new g(Math.round((r[n].x-this.offsetX)*this.scaleFactor),Math.round((r[n].y-this.offsetY)*this.scaleFactor),r[n].z);var o=H.removeRepeatedPoints(s);return o}},isIntegerPrecision:function(){return 1===this.scaleFactor},getNodedSubstrings:function(){var t=this.noder.getNodedSubstrings();return this.isScaled&&this.rescale(t),t},computeNodes:function(t){var e=t;this.isScaled&&(e=this.scale(t)),this.noder.computeNodes(e)},interfaces_:function(){return[tn]},getClass:function(){return Hi}});var Co=Object.freeze({MCIndexNoder:nn,ScaledNoder:Hi,SegmentString:be});e(Wi.prototype,{isSimpleMultiPoint:function(t){if(t.isEmpty())return!0;for(var e=new at,n=0;n<t.getNumGeometries();n++){var i=t.getGeometryN(n),r=i.getCoordinate();if(e.contains(r))return this.nonSimpleLocation=r,!1;e.add(r)}return!0},isSimplePolygonal:function(t){for(var e=kn.getLines(t),n=e.iterator();n.hasNext();){var i=n.next();if(!this.isSimpleLinearGeometry(i))return!1}return!0},hasClosedEndpointIntersection:function(t){for(var e=new rt,n=t.getEdgeIterator();n.hasNext();){var i=n.next(),r=(i.getMaximumSegmentIndex(),i.isClosed()),s=i.getCoordinate(0);this.addEndpoint(e,s,r);var o=i.getCoordinate(i.getNumPoints()-1);this.addEndpoint(e,o,r)}for(var n=e.values().iterator();n.hasNext();){var a=n.next();if(a.isClosed&&2!==a.degree)return this.nonSimpleLocation=a.getCoordinate(),!0}return!1},getNonSimpleLocation:function(){return this.nonSimpleLocation},isSimpleLinearGeometry:function(t){if(t.isEmpty())return!0;var e=new $n(0,t),n=new ae,i=e.computeSelfNodes(n,!0);return!i.hasIntersection()||(i.hasProperIntersection()?(this.nonSimpleLocation=i.getProperIntersectionPoint(),!1):!this.hasNonEndpointIntersection(e)&&(!this.isClosedEndpointsInInterior||!this.hasClosedEndpointIntersection(e)))},hasNonEndpointIntersection:function(t){for(var e=t.getEdgeIterator();e.hasNext();)for(var n=e.next(),i=n.getMaximumSegmentIndex(),r=n.getEdgeIntersectionList().iterator();r.hasNext();){var s=r.next();if(!s.isEndPoint(i))return this.nonSimpleLocation=s.getCoordinate(),!0}return!1},addEndpoint:function(t,e,n){var i=t.get(e);null===i&&(i=new ji(e),t.put(e,i)),i.addEndpoint(n)},computeSimple:function(t){return this.nonSimpleLocation=null,!!t.isEmpty()||(t instanceof St?this.isSimpleLinearGeometry(t):t instanceof gt?this.isSimpleLinearGeometry(t):t instanceof Pt?this.isSimpleMultiPoint(t):R(t,Rt)?this.isSimplePolygonal(t):!(t instanceof ft)||this.isSimpleGeometryCollection(t))},isSimple:function(){return this.nonSimpleLocation=null,this.computeSimple(this.inputGeom)},isSimpleGeometryCollection:function(t){for(var e=0;e<t.getNumGeometries();e++){var n=t.getGeometryN(e);if(!this.computeSimple(n))return!1}return!0},interfaces_:function(){return[]},getClass:function(){return Wi}}),e(ji.prototype,{addEndpoint:function(t){this.degree++,this.isClosed|=t},getCoordinate:function(){return this.pt},interfaces_:function(){return[]},getClass:function(){return ji}}),Wi.EndpointInfo=ji,e(Ki.prototype,{getEndCapStyle:function(){return this.endCapStyle},isSingleSided:function(){return this._isSingleSided},setQuadrantSegments:function(t){this.quadrantSegments=t,0===this.quadrantSegments&&(this.joinStyle=Ki.JOIN_BEVEL),this.quadrantSegments<0&&(this.joinStyle=Ki.JOIN_MITRE,this.mitreLimit=Math.abs(this.quadrantSegments)),t<=0&&(this.quadrantSegments=1),this.joinStyle!==Ki.JOIN_ROUND&&(this.quadrantSegments=Ki.DEFAULT_QUADRANT_SEGMENTS)},getJoinStyle:function(){return this.joinStyle},setJoinStyle:function(t){this.joinStyle=t},setSimplifyFactor:function(t){this.simplifyFactor=t<0?0:t},getSimplifyFactor:function(){return this.simplifyFactor},getQuadrantSegments:function(){return this.quadrantSegments},setEndCapStyle:function(t){this.endCapStyle=t},getMitreLimit:function(){return this.mitreLimit},setMitreLimit:function(t){this.mitreLimit=t},setSingleSided:function(t){this._isSingleSided=t},interfaces_:function(){return[]},getClass:function(){return Ki}}),Ki.bufferDistanceError=function(t){var e=Math.PI/2/t;return 1-Math.cos(e/2)},Ki.CAP_ROUND=1,Ki.CAP_FLAT=2,Ki.CAP_SQUARE=3,Ki.JOIN_ROUND=1,Ki.JOIN_MITRE=2,Ki.JOIN_BEVEL=3,Ki.DEFAULT_QUADRANT_SEGMENTS=8,Ki.DEFAULT_MITRE_LIMIT=5,Ki.DEFAULT_SIMPLIFY_FACTOR=.01,e(Zi.prototype,{getCoordinate:function(){return this.minCoord},getRightmostSide:function(t,e){var n=this.getRightmostSideOfSegment(t,e);return n<0&&(n=this.getRightmostSideOfSegment(t,e-1)),n<0&&(this.minCoord=null,this.checkForRightmostCoordinate(t)),n},findRightmostEdgeAtVertex:function(){var t=this.minDe.getEdge().getCoordinates();f.isTrue(this.minIndex>0&&this.minIndex<t.length,"rightmost point expected to be interior vertex of edge");var e=t[this.minIndex-1],n=t[this.minIndex+1],i=he.computeOrientation(this.minCoord,n,e),r=!1;e.y<this.minCoord.y&&n.y<this.minCoord.y&&i===he.COUNTERCLOCKWISE?r=!0:e.y>this.minCoord.y&&n.y>this.minCoord.y&&i===he.CLOCKWISE&&(r=!0),r&&(this.minIndex=this.minIndex-1)},getRightmostSideOfSegment:function(t,e){var n=t.getEdge(),i=n.getCoordinates();if(e<0||e+1>=i.length)return-1;if(i[e].y===i[e+1].y)return-1;var r=cn.LEFT;return i[e].y<i[e+1].y&&(r=cn.RIGHT),r},getEdge:function(){return this.orientedDe},checkForRightmostCoordinate:function(t){for(var e=t.getEdge().getCoordinates(),n=0;n<e.length-1;n++)(null===this.minCoord||e[n].x>this.minCoord.x)&&(this.minDe=t,this.minIndex=n,this.minCoord=e[n])},findRightmostEdgeAtNode:function(){var t=this.minDe.getNode(),e=t.getEdges();this.minDe=e.getRightmostEdge(),this.minDe.isForward()||(this.minDe=this.minDe.getSym(),this.minIndex=this.minDe.getEdge().getCoordinates().length-1)},findEdge:function(t){for(var e=t.iterator();e.hasNext();){var n=e.next();n.isForward()&&this.checkForRightmostCoordinate(n)}f.isTrue(0!==this.minIndex||this.minCoord.equals(this.minDe.getCoordinate()),"inconsistency in rightmost processing"),0===this.minIndex?this.findRightmostEdgeAtNode():this.findRightmostEdgeAtVertex(),this.orientedDe=this.minDe;var i=this.getRightmostSide(this.minDe,this.minIndex);i===cn.LEFT&&(this.orientedDe=this.minDe.getSym())},interfaces_:function(){return[]},getClass:function(){return Zi}}),Qi.prototype.addLast=function(t){this.array_.push(t)},Qi.prototype.removeFirst=function(){return this.array_.shift()},Qi.prototype.isEmpty=function(){return 0===this.array_.length},e(Ji.prototype,{clearVisitedEdges:function(){for(var t=this.dirEdgeList.iterator();t.hasNext();){var e=t.next();e.setVisited(!1)}},getRightmostCoordinate:function(){return this.rightMostCoord},computeNodeDepth:function(t){for(var e=null,n=t.getEdges().iterator();n.hasNext();){var i=n.next();if(i.isVisited()||i.getSym().isVisited()){e=i;break}}if(null===e)throw new sn("unable to find edge to compute depths at "+t.getCoordinate());t.getEdges().computeDepths(e);for(var n=t.getEdges().iterator();n.hasNext();){var i=n.next();i.setVisited(!0),this.copySymDepths(i)}},computeDepth:function(t){this.clearVisitedEdges();var e=this.finder.getEdge();e.getNode(),e.getLabel();e.setEdgeDepths(cn.RIGHT,t),this.copySymDepths(e),this.computeDepths(e)},create:function(t){this.addReachable(t),this.finder.findEdge(this.dirEdgeList),this.rightMostCoord=this.finder.getCoordinate()},findResultEdges:function(){for(var t=this.dirEdgeList.iterator();t.hasNext();){var e=t.next();e.getDepth(cn.RIGHT)>=1&&e.getDepth(cn.LEFT)<=0&&!e.isInteriorAreaEdge()&&e.setInResult(!0)}},computeDepths:function(t){var e=new J,n=new Qi,i=t.getNode();for(n.addLast(i),e.add(i),t.setVisited(!0);!n.isEmpty();){var r=n.removeFirst();e.add(r),this.computeNodeDepth(r);for(var s=r.getEdges().iterator();s.hasNext();){var o=s.next(),a=o.getSym();if(!a.isVisited()){var u=a.getNode();e.contains(u)||(n.addLast(u),e.add(u))}}}},compareTo:function(t){var e=t;return this.rightMostCoord.x<e.rightMostCoord.x?-1:this.rightMostCoord.x>e.rightMostCoord.x?1:0},getEnvelope:function(){if(null===this.env){for(var t=new C,e=this.dirEdgeList.iterator();e.hasNext();)for(var n=e.next(),i=n.getEdge().getCoordinates(),r=0;r<i.length-1;r++)t.expandToInclude(i[r]);this.env=t}return this.env},addReachable:function(t){var e=new pe;for(e.add(t);!e.empty();){var n=e.pop();this.add(n,e)}},copySymDepths:function(t){var e=t.getSym();e.setDepth(cn.LEFT,t.getDepth(cn.RIGHT)),e.setDepth(cn.RIGHT,t.getDepth(cn.LEFT))},add:function(t,e){t.setVisited(!0),this.nodes.add(t);for(var n=t.getEdges().iterator();n.hasNext();){var i=n.next();this.dirEdgeList.add(i);var r=i.getSym(),s=r.getNode();s.isVisited()||e.push(s)}},getNodes:function(){return this.nodes},getDirectedEdges:function(){return this.dirEdgeList},interfaces_:function(){return[s]},getClass:function(){return Ji}}),e($i.prototype,{isDeletable:function(t,e,n,i){var r=this.inputLine[t],s=this.inputLine[e],o=this.inputLine[n];return!!this.isConcave(r,s,o)&&(!!this.isShallow(r,s,o,i)&&this.isShallowSampled(r,s,t,n,i))},deleteShallowConcavities:function(){for(var t=1,e=(this.inputLine.length-1,this.findNextNonDeletedIndex(t)),n=this.findNextNonDeletedIndex(e),i=!1;n<this.inputLine.length;){var r=!1;this.isDeletable(t,e,n,this.distanceTol)&&(this.isDeleted[e]=$i.DELETE,r=!0,i=!0),t=r?n:e,e=this.findNextNonDeletedIndex(t),n=this.findNextNonDeletedIndex(e)}return i},isShallowConcavity:function(t,e,n,i){var r=he.computeOrientation(t,e,n),s=r===this.angleOrientation;if(!s)return!1;var o=he.distancePointLine(e,t,n);return o<i},isShallowSampled:function(t,e,n,i,r){var s=Math.trunc((i-n)/$i.NUM_PTS_TO_CHECK);s<=0&&(s=1);for(var o=n;o<i;o+=s)if(!this.isShallow(t,e,this.inputLine[o],r))return!1;return!0},isConcave:function t(e,n,i){var r=he.computeOrientation(e,n,i),t=r===this.angleOrientation;return t},simplify:function(t){this.distanceTol=Math.abs(t),t<0&&(this.angleOrientation=he.CLOCKWISE),this.isDeleted=new Array(this.inputLine.length).fill(null);var e=!1;do e=this.deleteShallowConcavities();while(e);return this.collapseLine()},findNextNonDeletedIndex:function(t){for(var e=t+1;e<this.inputLine.length&&this.isDeleted[e]===$i.DELETE;)e++;return e},isShallow:function(t,e,n,i){var r=he.distancePointLine(e,t,n);return r<i},collapseLine:function(){for(var t=new N,e=0;e<this.inputLine.length;e++)this.isDeleted[e]!==$i.DELETE&&t.add(this.inputLine[e]);return t.toCoordinateArray()},interfaces_:function(){return[]},getClass:function(){return $i}}),$i.simplify=function(t,e){var n=new $i(t);return n.simplify(e)},$i.INIT=0,$i.DELETE=1,$i.KEEP=1,$i.NUM_PTS_TO_CHECK=10,e(tr.prototype,{getCoordinates:function(){var t=this.ptList.toArray(tr.COORDINATE_ARRAY_TYPE);return t},setPrecisionModel:function(t){this.precisionModel=t},addPt:function(t){var e=new g(t);return this.precisionModel.makePrecise(e),this.isRedundant(e)?null:void this.ptList.add(e)},reverse:function(){},addPts:function(t,e){if(e)for(var n=0;n<t.length;n++)this.addPt(t[n]);else for(var n=t.length-1;n>=0;n--)this.addPt(t[n])},isRedundant:function(t){if(this.ptList.size()<1)return!1;var e=this.ptList.get(this.ptList.size()-1),n=t.distance(e);return n<this.minimimVertexDistance},toString:function(){var t=new ie,e=t.createLineString(this.getCoordinates());return e.toString()},closeRing:function(){if(this.ptList.size()<1)return null;var t=new g(this.ptList.get(0)),e=this.ptList.get(this.ptList.size()-1),n=null;return this.ptList.size()>=2&&(n=this.ptList.get(this.ptList.size()-2)),t.equals(e)?null:void this.ptList.add(t)},setMinimumVertexDistance:function(t){this.minimimVertexDistance=t},interfaces_:function(){return[]},getClass:function(){return tr}}),tr.COORDINATE_ARRAY_TYPE=new Array(0).fill(null),e(er.prototype,{addNextSegment:function(t,e){if(this.s0=this.s1,this.s1=this.s2,this.s2=t,this.seg0.setCoordinates(this.s0,this.s1),this.computeOffsetSegment(this.seg0,this.side,this.distance,this.offset0),this.seg1.setCoordinates(this.s1,this.s2),this.computeOffsetSegment(this.seg1,this.side,this.distance,this.offset1),this.s1.equals(this.s2))return null;var n=he.computeOrientation(this.s0,this.s1,this.s2),i=n===he.CLOCKWISE&&this.side===cn.LEFT||n===he.COUNTERCLOCKWISE&&this.side===cn.RIGHT;0===n?this.addCollinear(e):i?this.addOutsideTurn(n,e):this.addInsideTurn(n,e)},addLineEndCap:function(t,e){var n=new ce(t,e),i=new ce;this.computeOffsetSegment(n,cn.LEFT,this.distance,i);var r=new ce;this.computeOffsetSegment(n,cn.RIGHT,this.distance,r);var s=e.x-t.x,o=e.y-t.y,a=Math.atan2(o,s);switch(this.bufParams.getEndCapStyle()){case Ki.CAP_ROUND:this.segList.addPt(i.p1),this.addFilletArc(e,a+Math.PI/2,a-Math.PI/2,he.CLOCKWISE,this.distance),this.segList.addPt(r.p1);break;case Ki.CAP_FLAT:this.segList.addPt(i.p1),this.segList.addPt(r.p1);break;case Ki.CAP_SQUARE:var u=new g;u.x=Math.abs(this.distance)*Math.cos(a),u.y=Math.abs(this.distance)*Math.sin(a);var l=new g(i.p1.x+u.x,i.p1.y+u.y),h=new g(r.p1.x+u.x,r.p1.y+u.y);this.segList.addPt(l),this.segList.addPt(h)}},getCoordinates:function(){var t=this.segList.getCoordinates();return t},addMitreJoin:function(t,e,n,i){var r=!0,s=null;try{s=F.intersection(e.p0,e.p1,n.p0,n.p1);var o=i<=0?1:s.distance(t)/Math.abs(i);o>this.bufParams.getMitreLimit()&&(r=!1)}catch(t){if(!(t instanceof w))throw t;s=new g(0,0),r=!1}finally{}r?this.segList.addPt(s):this.addLimitedMitreJoin(e,n,i,this.bufParams.getMitreLimit())},addFilletCorner:function(t,e,n,i,r){var s=e.x-t.x,o=e.y-t.y,a=Math.atan2(o,s),u=n.x-t.x,l=n.y-t.y,h=Math.atan2(l,u);i===he.CLOCKWISE?a<=h&&(a+=2*Math.PI):a>=h&&(a-=2*Math.PI),this.segList.addPt(e),this.addFilletArc(t,a,h,i,r),this.segList.addPt(n)},addOutsideTurn:function(t,e){return this.offset0.p1.distance(this.offset1.p0)<this.distance*er.OFFSET_SEGMENT_SEPARATION_FACTOR?(this.segList.addPt(this.offset0.p1),null):void(this.bufParams.getJoinStyle()===Ki.JOIN_MITRE?this.addMitreJoin(this.s1,this.offset0,this.offset1,this.distance):this.bufParams.getJoinStyle()===Ki.JOIN_BEVEL?this.addBevelJoin(this.offset0,this.offset1):(e&&this.segList.addPt(this.offset0.p1),this.addFilletCorner(this.s1,this.offset0.p1,this.offset1.p0,t,this.distance),this.segList.addPt(this.offset1.p0)))},createSquare:function(t){this.segList.addPt(new g(t.x+this.distance,t.y+this.distance)),this.segList.addPt(new g(t.x+this.distance,t.y-this.distance)),this.segList.addPt(new g(t.x-this.distance,t.y-this.distance)),this.segList.addPt(new g(t.x-this.distance,t.y+this.distance)),this.segList.closeRing()},addSegments:function(t,e){this.segList.addPts(t,e)},addFirstSegment:function(){this.segList.addPt(this.offset1.p0)},addLastSegment:function(){this.segList.addPt(this.offset1.p1)},initSideSegments:function(t,e,n){this.s1=t,this.s2=e,this.side=n,this.seg1.setCoordinates(t,e),this.computeOffsetSegment(this.seg1,n,this.distance,this.offset1);
},addLimitedMitreJoin:function(t,e,n,i){var r=this.seg0.p1,s=Ci.angle(r,this.seg0.p0),o=(Ci.angle(r,this.seg1.p1),Ci.angleBetweenOriented(this.seg0.p0,r,this.seg1.p1)),a=o/2,u=Ci.normalize(s+a),l=Ci.normalize(u+Math.PI),h=i*n,c=h*Math.abs(Math.sin(a)),f=n-c,d=r.x+h*Math.cos(l),p=r.y+h*Math.sin(l),v=new g(d,p),m=new ce(r,v),y=m.pointAlongOffset(1,f),x=m.pointAlongOffset(1,-f);this.side===cn.LEFT?(this.segList.addPt(y),this.segList.addPt(x)):(this.segList.addPt(x),this.segList.addPt(y))},computeOffsetSegment:function(t,e,n,i){var r=e===cn.LEFT?1:-1,s=t.p1.x-t.p0.x,o=t.p1.y-t.p0.y,a=Math.sqrt(s*s+o*o),u=r*n*s/a,l=r*n*o/a;i.p0.x=t.p0.x-l,i.p0.y=t.p0.y+u,i.p1.x=t.p1.x-l,i.p1.y=t.p1.y+u},addFilletArc:function(t,e,n,i,r){var s=i===he.CLOCKWISE?-1:1,o=Math.abs(e-n),a=Math.trunc(o/this.filletAngleQuantum+.5);if(a<1)return null;var u=null,l=null;u=0,l=o/a;for(var h=u,c=new g;h<o;){var f=e+s*h;c.x=t.x+r*Math.cos(f),c.y=t.y+r*Math.sin(f),this.segList.addPt(c),h+=l}},addInsideTurn:function(t,e){if(this.li.computeIntersection(this.offset0.p0,this.offset0.p1,this.offset1.p0,this.offset1.p1),this.li.hasIntersection())this.segList.addPt(this.li.getIntersection(0));else if(this._hasNarrowConcaveAngle=!0,this.offset0.p1.distance(this.offset1.p0)<this.distance*er.INSIDE_TURN_VERTEX_SNAP_DISTANCE_FACTOR)this.segList.addPt(this.offset0.p1);else{if(this.segList.addPt(this.offset0.p1),this.closingSegLengthFactor>0){var n=new g((this.closingSegLengthFactor*this.offset0.p1.x+this.s1.x)/(this.closingSegLengthFactor+1),(this.closingSegLengthFactor*this.offset0.p1.y+this.s1.y)/(this.closingSegLengthFactor+1));this.segList.addPt(n);var i=new g((this.closingSegLengthFactor*this.offset1.p0.x+this.s1.x)/(this.closingSegLengthFactor+1),(this.closingSegLengthFactor*this.offset1.p0.y+this.s1.y)/(this.closingSegLengthFactor+1));this.segList.addPt(i)}else this.segList.addPt(this.s1);this.segList.addPt(this.offset1.p0)}},createCircle:function(t){var e=new g(t.x+this.distance,t.y);this.segList.addPt(e),this.addFilletArc(t,0,2*Math.PI,-1,this.distance),this.segList.closeRing()},addBevelJoin:function(t,e){this.segList.addPt(t.p1),this.segList.addPt(e.p0)},init:function(t){this.distance=t,this.maxCurveSegmentError=t*(1-Math.cos(this.filletAngleQuantum/2)),this.segList=new tr,this.segList.setPrecisionModel(this.precisionModel),this.segList.setMinimumVertexDistance(t*er.CURVE_VERTEX_SNAP_DISTANCE_FACTOR)},addCollinear:function(t){this.li.computeIntersection(this.s0,this.s1,this.s1,this.s2);var e=this.li.getIntersectionNum();e>=2&&(this.bufParams.getJoinStyle()===Ki.JOIN_BEVEL||this.bufParams.getJoinStyle()===Ki.JOIN_MITRE?(t&&this.segList.addPt(this.offset0.p1),this.segList.addPt(this.offset1.p0)):this.addFilletCorner(this.s1,this.offset0.p1,this.offset1.p0,he.CLOCKWISE,this.distance))},closeRing:function(){this.segList.closeRing()},hasNarrowConcaveAngle:function(){return this._hasNarrowConcaveAngle},interfaces_:function(){return[]},getClass:function(){return er}}),er.OFFSET_SEGMENT_SEPARATION_FACTOR=.001,er.INSIDE_TURN_VERTEX_SNAP_DISTANCE_FACTOR=.001,er.CURVE_VERTEX_SNAP_DISTANCE_FACTOR=1e-6,er.MAX_CLOSING_SEG_LEN_FACTOR=80,e(nr.prototype,{getOffsetCurve:function(t,e){if(this.distance=e,0===e)return null;var n=e<0,i=Math.abs(e),r=this.getSegGen(i);t.length<=1?this.computePointCurve(t[0],r):this.computeOffsetCurve(t,n,r);var s=r.getCoordinates();return n&&H.reverse(s),s},computeSingleSidedBufferCurve:function(t,e,n){var i=this.simplifyTolerance(this.distance);if(e){n.addSegments(t,!0);var r=$i.simplify(t,-i),s=r.length-1;n.initSideSegments(r[s],r[s-1],cn.LEFT),n.addFirstSegment();for(var o=s-2;o>=0;o--)n.addNextSegment(r[o],!0)}else{n.addSegments(t,!1);var a=$i.simplify(t,i),u=a.length-1;n.initSideSegments(a[0],a[1],cn.LEFT),n.addFirstSegment();for(var o=2;o<=u;o++)n.addNextSegment(a[o],!0)}n.addLastSegment(),n.closeRing()},computeRingBufferCurve:function(t,e,n){var i=this.simplifyTolerance(this.distance);e===cn.RIGHT&&(i=-i);var r=$i.simplify(t,i),s=r.length-1;n.initSideSegments(r[s-1],r[0],e);for(var o=1;o<=s;o++){var a=1!==o;n.addNextSegment(r[o],a)}n.closeRing()},computeLineBufferCurve:function(t,e){var n=this.simplifyTolerance(this.distance),i=$i.simplify(t,n),r=i.length-1;e.initSideSegments(i[0],i[1],cn.LEFT);for(var s=2;s<=r;s++)e.addNextSegment(i[s],!0);e.addLastSegment(),e.addLineEndCap(i[r-1],i[r]);var o=$i.simplify(t,-n),a=o.length-1;e.initSideSegments(o[a],o[a-1],cn.LEFT);for(var s=a-2;s>=0;s--)e.addNextSegment(o[s],!0);e.addLastSegment(),e.addLineEndCap(o[1],o[0]),e.closeRing()},computePointCurve:function(t,e){switch(this.bufParams.getEndCapStyle()){case Ki.CAP_ROUND:e.createCircle(t);break;case Ki.CAP_SQUARE:e.createSquare(t)}},getLineCurve:function(t,e){if(this.distance=e,e<0&&!this.bufParams.isSingleSided())return null;if(0===e)return null;var n=Math.abs(e),i=this.getSegGen(n);if(t.length<=1)this.computePointCurve(t[0],i);else if(this.bufParams.isSingleSided()){var r=e<0;this.computeSingleSidedBufferCurve(t,r,i)}else this.computeLineBufferCurve(t,i);var s=i.getCoordinates();return s},getBufferParameters:function(){return this.bufParams},simplifyTolerance:function(t){return t*this.bufParams.getSimplifyFactor()},getRingCurve:function(t,e,n){if(this.distance=n,t.length<=2)return this.getLineCurve(t,n);if(0===n)return nr.copyCoordinates(t);var i=this.getSegGen(n);return this.computeRingBufferCurve(t,e,i),i.getCoordinates()},computeOffsetCurve:function(t,e,n){var i=this.simplifyTolerance(this.distance);if(e){var r=$i.simplify(t,-i),s=r.length-1;n.initSideSegments(r[s],r[s-1],cn.LEFT),n.addFirstSegment();for(var o=s-2;o>=0;o--)n.addNextSegment(r[o],!0)}else{var a=$i.simplify(t,i),u=a.length-1;n.initSideSegments(a[0],a[1],cn.LEFT),n.addFirstSegment();for(var o=2;o<=u;o++)n.addNextSegment(a[o],!0)}n.addLastSegment()},getSegGen:function(t){return new er(this.precisionModel,this.bufParams,t)},interfaces_:function(){return[]},getClass:function(){return nr}}),nr.copyCoordinates=function(t){for(var e=new Array(t.length).fill(null),n=0;n<e.length;n++)e[n]=new g(t[n]);return e},e(ir.prototype,{findStabbedSegments:function(){if(1===arguments.length){for(var t=arguments[0],e=new I,n=this.subgraphs.iterator();n.hasNext();){var i=n.next(),r=i.getEnvelope();t.y<r.getMinY()||t.y>r.getMaxY()||this.findStabbedSegments(t,i.getDirectedEdges(),e)}return e}if(3===arguments.length)if(R(arguments[2],y)&&arguments[0]instanceof g&&arguments[1]instanceof In)for(var s=arguments[0],o=arguments[1],a=arguments[2],u=o.getEdge().getCoordinates(),n=0;n<u.length-1;n++){this.seg.p0=u[n],this.seg.p1=u[n+1],this.seg.p0.y>this.seg.p1.y&&this.seg.reverse();var l=Math.max(this.seg.p0.x,this.seg.p1.x);if(!(l<s.x||this.seg.isHorizontal()||s.y<this.seg.p0.y||s.y>this.seg.p1.y||he.computeOrientation(this.seg.p0,this.seg.p1,s)===he.RIGHT)){var h=o.getDepth(cn.LEFT);this.seg.p0.equals(u[n])||(h=o.getDepth(cn.RIGHT));var c=new rr(this.seg,h);a.add(c)}}else if(R(arguments[2],y)&&arguments[0]instanceof g&&R(arguments[1],y))for(var f=arguments[0],d=arguments[1],p=arguments[2],n=d.iterator();n.hasNext();){var v=n.next();v.isForward()&&this.findStabbedSegments(f,v,p)}},getDepth:function(t){var e=this.findStabbedSegments(t);if(0===e.size())return 0;var n=ho.min(e);return n.leftDepth},interfaces_:function(){return[]},getClass:function(){return ir}}),e(rr.prototype,{compareTo:function(t){var e=t;if(this.upwardSeg.minX()>=e.upwardSeg.maxX())return 1;if(this.upwardSeg.maxX()<=e.upwardSeg.minX())return-1;var n=this.upwardSeg.orientationIndex(e.upwardSeg);return 0!==n?n:(n=-1*e.upwardSeg.orientationIndex(this.upwardSeg),0!==n?n:this.upwardSeg.compareTo(e.upwardSeg))},compareX:function(t,e){var n=t.p0.compareTo(e.p0);return 0!==n?n:t.p1.compareTo(e.p1)},toString:function(){return this.upwardSeg.toString()},interfaces_:function(){return[s]},getClass:function(){return rr}}),ir.DepthSegment=rr,e(sr.prototype,{addPoint:function(t){if(this.distance<=0)return null;var e=t.getCoordinates(),n=this.curveBuilder.getLineCurve(e,this.distance);this.addCurve(n,L.EXTERIOR,L.INTERIOR)},addPolygon:function(t){var e=this.distance,n=cn.LEFT;this.distance<0&&(e=-this.distance,n=cn.RIGHT);var i=t.getExteriorRing(),r=H.removeRepeatedPoints(i.getCoordinates());if(this.distance<0&&this.isErodedCompletely(i,this.distance))return null;if(this.distance<=0&&r.length<3)return null;this.addPolygonRing(r,e,n,L.EXTERIOR,L.INTERIOR);for(var s=0;s<t.getNumInteriorRing();s++){var o=t.getInteriorRingN(s),a=H.removeRepeatedPoints(o.getCoordinates());this.distance>0&&this.isErodedCompletely(o,-this.distance)||this.addPolygonRing(a,e,cn.opposite(n),L.INTERIOR,L.EXTERIOR)}},isTriangleErodedCompletely:function(t,e){var n=new Si(t[0],t[1],t[2]),i=n.inCentre(),r=he.distancePointLine(i,n.p0,n.p1);return r<Math.abs(e)},addLineString:function(t){if(this.distance<=0&&!this.curveBuilder.getBufferParameters().isSingleSided())return null;var e=H.removeRepeatedPoints(t.getCoordinates()),n=this.curveBuilder.getLineCurve(e,this.distance);this.addCurve(n,L.EXTERIOR,L.INTERIOR)},addCurve:function(t,e,n){if(null===t||t.length<2)return null;var i=new Ke(t,new gn(0,L.BOUNDARY,e,n));this.curveList.add(i)},getCurves:function(){return this.add(this.inputGeom),this.curveList},addPolygonRing:function(t,e,n,i,r){if(0===e&&t.length<bt.MINIMUM_VALID_SIZE)return null;var s=i,o=r;t.length>=bt.MINIMUM_VALID_SIZE&&he.isCCW(t)&&(s=r,o=i,n=cn.opposite(n));var a=this.curveBuilder.getRingCurve(t,n,e);this.addCurve(a,s,o)},add:function(t){if(t.isEmpty())return null;if(t instanceof Tt)this.addPolygon(t);else if(t instanceof St)this.addLineString(t);else if(t instanceof Lt)this.addPoint(t);else if(t instanceof Pt)this.addCollection(t);else if(t instanceof gt)this.addCollection(t);else if(t instanceof Ot)this.addCollection(t);else{if(!(t instanceof ft))throw new UnsupportedOperationException(t.getClass().getName());this.addCollection(t)}},isErodedCompletely:function(t,e){var n=t.getCoordinates();if(n.length<4)return e<0;if(4===n.length)return this.isTriangleErodedCompletely(n,e);var i=t.getEnvelopeInternal(),r=Math.min(i.getHeight(),i.getWidth());return e<0&&2*Math.abs(e)>r},addCollection:function(t){for(var e=0;e<t.getNumGeometries();e++){var n=t.getGeometryN(e);this.add(n)}},interfaces_:function(){return[]},getClass:function(){return sr}}),e(or.prototype,{isTrivialIntersection:function(t,e,n,i){if(t===n&&1===this.li.getIntersectionNum()){if(or.isAdjacentSegments(e,i))return!0;if(t.isClosed()){var r=t.size()-1;if(0===e&&i===r||0===i&&e===r)return!0}}return!1},getProperIntersectionPoint:function(){return this.properIntersectionPoint},hasProperInteriorIntersection:function(){return this.hasProperInterior},getLineIntersector:function(){return this.li},hasProperIntersection:function(){return this.hasProper},processIntersections:function(t,e,n,i){if(t===n&&e===i)return null;this.numTests++;var r=t.getCoordinates()[e],s=t.getCoordinates()[e+1],o=n.getCoordinates()[i],a=n.getCoordinates()[i+1];this.li.computeIntersection(r,s,o,a),this.li.hasIntersection()&&(this.numIntersections++,this.li.isInteriorIntersection()&&(this.numInteriorIntersections++,this.hasInterior=!0),this.isTrivialIntersection(t,e,n,i)||(this._hasIntersection=!0,t.addIntersections(this.li,e,0),n.addIntersections(this.li,i,1),this.li.isProper()&&(this.numProperIntersections++,this.hasProper=!0,this.hasProperInterior=!0)))},hasIntersection:function(){return this._hasIntersection},isDone:function(){return!1},hasInteriorIntersection:function(){return this.hasInterior},interfaces_:function(){return[on]},getClass:function(){return or}}),or.isAdjacentSegments=function(t,e){return 1===Math.abs(t-e)},e(ar.prototype,{setWorkingPrecisionModel:function(t){this.workingPrecisionModel=t},insertUniqueEdge:function(t){var e=this.edgeList.findEqualEdge(t);if(null!==e){var n=e.getLabel(),i=t.getLabel();e.isPointwiseEqual(t)||(i=new gn(t.getLabel()),i.flip()),n.merge(i);var r=ar.depthDelta(i),s=e.getDepthDelta(),o=s+r;e.setDepthDelta(o)}else this.edgeList.add(t),t.setDepthDelta(ar.depthDelta(t.getLabel()))},buildSubgraphs:function(t,e){for(var n=new I,i=t.iterator();i.hasNext();){var r=i.next(),s=r.getRightmostCoordinate(),o=new ir(n),a=o.getDepth(s);r.computeDepth(a),r.findResultEdges(),n.add(r),e.add(r.getDirectedEdges(),r.getNodes())}},createSubgraphs:function(t){for(var e=new I,n=t.getNodes().iterator();n.hasNext();){var i=n.next();if(!i.isVisited()){var r=new Ji;r.create(i),e.add(r)}}return ho.sort(e,ho.reverseOrder()),e},createEmptyResultGeometry:function(){var t=this.geomFact.createPolygon();return t},getNoder:function(t){if(null!==this.workingNoder)return this.workingNoder;var e=new nn,n=new ae;return n.setPrecisionModel(t),e.setSegmentIntersector(new or(n)),e},buffer:function(t,e){var n=this.workingPrecisionModel;null===n&&(n=t.getPrecisionModel()),this.geomFact=t.getFactory();var i=new nr(n,this.bufParams),r=new sr(t,e,i),s=r.getCurves();if(s.size()<=0)return this.createEmptyResultGeometry();this.computeNodedEdges(s,n),this.graph=new Cn(new On),this.graph.addEdges(this.edgeList.getEdges());var o=this.createSubgraphs(this.graph),a=new Sn(this.geomFact);this.buildSubgraphs(o,a);var u=a.getPolygons();if(u.size()<=0)return this.createEmptyResultGeometry();var l=this.geomFact.buildGeometry(u);return l},computeNodedEdges:function(t,e){var n=this.getNoder(e);n.computeNodes(t);for(var i=n.getNodedSubstrings(),r=i.iterator();r.hasNext();){var s=r.next(),o=s.getCoordinates();if(2!==o.length||!o[0].equals2D(o[1])){var a=s.getData(),u=new Jn(s.getCoordinates(),new gn(a));this.insertUniqueEdge(u)}}},setNoder:function(t){this.workingNoder=t},interfaces_:function(){return[]},getClass:function(){return ar}}),ar.depthDelta=function(t){var e=t.getLocation(0,cn.LEFT),n=t.getLocation(0,cn.RIGHT);return e===L.INTERIOR&&n===L.EXTERIOR?1:e===L.EXTERIOR&&n===L.INTERIOR?-1:0},ar.convertSegStrings=function(t){for(var e=new ie,n=new I;t.hasNext();){var i=t.next(),r=e.createLineString(i.getCoordinates());n.add(r)}return e.buildGeometry(n)},e(ur.prototype,{checkEndPtVertexIntersections:function(){if(0===arguments.length)for(var t=this.segStrings.iterator();t.hasNext();){var e=t.next(),n=e.getCoordinates();this.checkEndPtVertexIntersections(n[0],this.segStrings),this.checkEndPtVertexIntersections(n[n.length-1],this.segStrings)}else if(2===arguments.length)for(var i=arguments[0],r=arguments[1],t=r.iterator();t.hasNext();)for(var e=t.next(),n=e.getCoordinates(),s=1;s<n.length-1;s++)if(n[s].equals(i))throw new l("found endpt/interior pt intersection at index "+s+" :pt "+i)},checkInteriorIntersections:function(){if(0===arguments.length)for(var t=this.segStrings.iterator();t.hasNext();)for(var e=t.next(),n=this.segStrings.iterator();n.hasNext();){var i=n.next();this.checkInteriorIntersections(e,i)}else if(2===arguments.length)for(var r=arguments[0],s=arguments[1],o=r.getCoordinates(),a=s.getCoordinates(),u=0;u<o.length-1;u++)for(var h=0;h<a.length-1;h++)this.checkInteriorIntersections(r,u,s,h);else if(4===arguments.length){var c=arguments[0],f=arguments[1],g=arguments[2],d=arguments[3];if(c===g&&f===d)return null;var p=c.getCoordinates()[f],v=c.getCoordinates()[f+1],m=g.getCoordinates()[d],y=g.getCoordinates()[d+1];if(this.li.computeIntersection(p,v,m,y),this.li.hasIntersection()&&(this.li.isProper()||this.hasInteriorIntersection(this.li,p,v)||this.hasInteriorIntersection(this.li,m,y)))throw new l("found non-noded intersection at "+p+"-"+v+" and "+m+"-"+y)}},checkValid:function(){this.checkEndPtVertexIntersections(),this.checkInteriorIntersections(),this.checkCollapses()},checkCollapses:function(){if(0===arguments.length)for(var t=this.segStrings.iterator();t.hasNext();){var e=t.next();this.checkCollapses(e)}else if(1===arguments.length)for(var n=arguments[0],i=n.getCoordinates(),t=0;t<i.length-2;t++)this.checkCollapse(i[t],i[t+1],i[t+2])},hasInteriorIntersection:function(t,e,n){for(var i=0;i<t.getIntersectionNum();i++){var r=t.getIntersection(i);if(!r.equals(e)&&!r.equals(n))return!0}return!1},checkCollapse:function(t,e,n){if(t.equals(n))throw new l("found non-noded collapse at "+ur.fact.createLineString([t,e,n]))},interfaces_:function(){return[]},getClass:function(){return ur}}),ur.fact=new ie,e(lr.prototype,{intersectsScaled:function(t,e){var n=Math.min(t.x,e.x),i=Math.max(t.x,e.x),r=Math.min(t.y,e.y),s=Math.max(t.y,e.y),o=this.maxx<n||this.minx>i||this.maxy<r||this.miny>s;if(o)return!1;var a=this.intersectsToleranceSquare(t,e);return f.isTrue(!(o&&a),"Found bad envelope test"),a},initCorners:function(t){var e=.5;this.minx=t.x-e,this.maxx=t.x+e,this.miny=t.y-e,this.maxy=t.y+e,this.corner[0]=new g(this.maxx,this.maxy),this.corner[1]=new g(this.minx,this.maxy),this.corner[2]=new g(this.minx,this.miny),this.corner[3]=new g(this.maxx,this.miny)},intersects:function(t,e){return 1===this.scaleFactor?this.intersectsScaled(t,e):(this.copyScaled(t,this.p0Scaled),this.copyScaled(e,this.p1Scaled),this.intersectsScaled(this.p0Scaled,this.p1Scaled))},scale:function(t){return Math.round(t*this.scaleFactor)},getCoordinate:function(){return this.originalPt},copyScaled:function(t,e){e.x=this.scale(t.x),e.y=this.scale(t.y)},getSafeEnvelope:function(){if(null===this.safeEnv){var t=lr.SAFE_ENV_EXPANSION_FACTOR/this.scaleFactor;this.safeEnv=new C(this.originalPt.x-t,this.originalPt.x+t,this.originalPt.y-t,this.originalPt.y+t)}return this.safeEnv},intersectsPixelClosure:function(t,e){return this.li.computeIntersection(t,e,this.corner[0],this.corner[1]),!!this.li.hasIntersection()||(this.li.computeIntersection(t,e,this.corner[1],this.corner[2]),!!this.li.hasIntersection()||(this.li.computeIntersection(t,e,this.corner[2],this.corner[3]),!!this.li.hasIntersection()||(this.li.computeIntersection(t,e,this.corner[3],this.corner[0]),!!this.li.hasIntersection())))},intersectsToleranceSquare:function(t,e){var n=!1,i=!1;return this.li.computeIntersection(t,e,this.corner[0],this.corner[1]),!!this.li.isProper()||(this.li.computeIntersection(t,e,this.corner[1],this.corner[2]),!!this.li.isProper()||(this.li.hasIntersection()&&(n=!0),this.li.computeIntersection(t,e,this.corner[2],this.corner[3]),!!this.li.isProper()||(this.li.hasIntersection()&&(i=!0),this.li.computeIntersection(t,e,this.corner[3],this.corner[0]),!!this.li.isProper()||(!(!n||!i)||(!!t.equals(this.pt)||!!e.equals(this.pt))))))},addSnappedNode:function(t,e){var n=t.getCoordinate(e),i=t.getCoordinate(e+1);return!!this.intersects(n,i)&&(t.addIntersection(this.getCoordinate(),e),!0)},interfaces_:function(){return[]},getClass:function(){return lr}}),lr.SAFE_ENV_EXPANSION_FACTOR=.75,e(hr.prototype,{snap:function(){if(1===arguments.length){var t=arguments[0];return this.snap(t,null,-1)}if(3===arguments.length){var e=arguments[0],n=arguments[1],i=arguments[2],r=e.getSafeEnvelope(),s=new cr(e,n,i);return this.index.query(r,{interfaces_:function(){return[Ae]},visitItem:function(t){var e=t;e.select(r,s)}}),s.isNodeAdded()}},interfaces_:function(){return[]},getClass:function(){return hr}}),h(cr,hi),e(cr.prototype,{isNodeAdded:function(){return this._isNodeAdded},select:function(){if(2!==arguments.length)return hi.prototype.select.apply(this,arguments);var t=arguments[0],e=arguments[1],n=t.getContext();return null!==this.parentEdge&&n===this.parentEdge&&e===this.hotPixelVertexIndex?null:void(this._isNodeAdded=this.hotPixel.addSnappedNode(n,e))},interfaces_:function(){return[]},getClass:function(){return cr}}),hr.HotPixelSnapAction=cr,e(fr.prototype,{processIntersections:function(t,e,n,i){if(t===n&&e===i)return null;var r=t.getCoordinates()[e],s=t.getCoordinates()[e+1],o=n.getCoordinates()[i],a=n.getCoordinates()[i+1];if(this.li.computeIntersection(r,s,o,a),this.li.hasIntersection()&&this.li.isInteriorIntersection()){for(var u=0;u<this.li.getIntersectionNum();u++)this.interiorIntersections.add(this.li.getIntersection(u));t.addIntersections(this.li,e,0),n.addIntersections(this.li,i,1)}},isDone:function(){return!1},getInteriorIntersections:function(){return this.interiorIntersections},interfaces_:function(){return[on]},getClass:function(){return fr}}),e(gr.prototype,{checkCorrectness:function(t){var e=Ke.getNodedSubstrings(t),n=new ur(e);try{n.checkValid()}catch(t){if(!(t instanceof S))throw t;t.printStackTrace()}finally{}},getNodedSubstrings:function(){return Ke.getNodedSubstrings(this.nodedSegStrings)},snapRound:function(t,e){var n=this.findInteriorIntersections(t,e);this.computeIntersectionSnaps(n),this.computeVertexSnaps(t)},findInteriorIntersections:function(t,e){var n=new fr(e);return this.noder.setSegmentIntersector(n),this.noder.computeNodes(t),n.getInteriorIntersections()},computeVertexSnaps:function(){if(R(arguments[0],v))for(var t=arguments[0],e=t.iterator();e.hasNext();){var n=e.next();this.computeVertexSnaps(n)}else if(arguments[0]instanceof Ke)for(var i=arguments[0],r=i.getCoordinates(),s=0;s<r.length;s++){var o=new lr(r[s],this.scaleFactor,this.li),a=this.pointSnapper.snap(o,i,s);a&&i.addIntersection(r[s],s)}},computeNodes:function(t){this.nodedSegStrings=t,this.noder=new nn,this.pointSnapper=new hr(this.noder.getIndex()),this.snapRound(t,this.li)},computeIntersectionSnaps:function(t){for(var e=t.iterator();e.hasNext();){var n=e.next(),i=new lr(n,this.scaleFactor,this.li);this.pointSnapper.snap(i)}},interfaces_:function(){return[tn]},getClass:function(){return gr}}),e(dr.prototype,{bufferFixedPrecision:function(t){var e=new Hi(new gr(new ee(1)),t.getScale()),n=new ar(this.bufParams);n.setWorkingPrecisionModel(t),n.setNoder(e),this.resultGeometry=n.buffer(this.argGeom,this.distance)},bufferReducedPrecision:function(){if(0===arguments.length){for(var t=dr.MAX_PRECISION_DIGITS;t>=0;t--){try{this.bufferReducedPrecision(t)}catch(t){if(!(t instanceof sn))throw t;this.saveException=t}finally{}if(null!==this.resultGeometry)return null}throw this.saveException}if(1===arguments.length){var e=arguments[0],n=dr.precisionScaleFactor(this.argGeom,this.distance,e),i=new ee(n);this.bufferFixedPrecision(i)}},computeGeometry:function(){if(this.bufferOriginalPrecision(),null!==this.resultGeometry)return null;var t=this.argGeom.getFactory().getPrecisionModel();t.getType()===ee.FIXED?this.bufferFixedPrecision(t):this.bufferReducedPrecision()},setQuadrantSegments:function(t){this.bufParams.setQuadrantSegments(t)},bufferOriginalPrecision:function(){try{var t=new ar(this.bufParams);this.resultGeometry=t.buffer(this.argGeom,this.distance)}catch(t){if(!(t instanceof l))throw t;this.saveException=t}finally{}},getResultGeometry:function(t){return this.distance=t,this.computeGeometry(),this.resultGeometry},setEndCapStyle:function(t){this.bufParams.setEndCapStyle(t)},interfaces_:function(){return[]},getClass:function(){return dr}}),dr.bufferOp=function(){if(2===arguments.length){var t=arguments[0],e=arguments[1],n=new dr(t),i=n.getResultGeometry(e);return i}if(3===arguments.length){if(Number.isInteger(arguments[2])&&arguments[0]instanceof B&&"number"==typeof arguments[1]){var r=arguments[0],s=arguments[1],o=arguments[2],a=new dr(r);a.setQuadrantSegments(o);var i=a.getResultGeometry(s);return i}if(arguments[2]instanceof Ki&&arguments[0]instanceof B&&"number"==typeof arguments[1]){var u=arguments[0],l=arguments[1],h=arguments[2],a=new dr(u,h),i=a.getResultGeometry(l);return i}}else if(4===arguments.length){var c=arguments[0],f=arguments[1],g=arguments[2],d=arguments[3],a=new dr(c);a.setQuadrantSegments(g),a.setEndCapStyle(d);var i=a.getResultGeometry(f);return i}},dr.precisionScaleFactor=function(t,e,n){var i=t.getEnvelopeInternal(),r=T.max(Math.abs(i.getMaxX()),Math.abs(i.getMaxY()),Math.abs(i.getMinX()),Math.abs(i.getMinY())),s=e>0?e:0,o=r+2*s,a=Math.trunc(Math.log(o)/Math.log(10)+1),u=n-a,l=Math.pow(10,u);return l},dr.CAP_ROUND=Ki.CAP_ROUND,dr.CAP_BUTT=Ki.CAP_FLAT,dr.CAP_FLAT=Ki.CAP_FLAT,dr.CAP_SQUARE=Ki.CAP_SQUARE,dr.MAX_PRECISION_DIGITS=12;var So=Object.freeze({BufferOp:dr,BufferParameters:Ki});e(pr.prototype,{filter:function(t){t instanceof Tt&&this.comps.add(t)},interfaces_:function(){return[ht]},getClass:function(){return pr}}),pr.getPolygons=function(){if(1===arguments.length){var t=arguments[0];return pr.getPolygons(t,new I)}if(2===arguments.length){var e=arguments[0],n=arguments[1];return e instanceof Tt?n.add(e):e instanceof ft&&e.apply(new pr(n)),n}},e(vr.prototype,{isInsideArea:function(){return this.segIndex===vr.INSIDE_AREA},getCoordinate:function(){return this.pt},getGeometryComponent:function(){return this.component},getSegmentIndex:function(){return this.segIndex},interfaces_:function(){return[]},getClass:function(){return vr}}),vr.INSIDE_AREA=-1,e(mr.prototype,{filter:function(t){t instanceof Lt&&this.pts.add(t)},interfaces_:function(){return[ht]},getClass:function(){return mr}}),mr.getPoints=function(){if(1===arguments.length){var t=arguments[0];return t instanceof Lt?ho.singletonList(t):mr.getPoints(t,new I)}if(2===arguments.length){var e=arguments[0],n=arguments[1];return e instanceof Lt?n.add(e):e instanceof ft&&e.apply(new mr(n)),n}},e(yr.prototype,{filter:function(t){(t instanceof Lt||t instanceof St||t instanceof Tt)&&this.locations.add(new vr(t,0,t.getCoordinate()))},interfaces_:function(){return[ht]},getClass:function(){return yr}}),yr.getLocations=function(t){var e=new I;return t.apply(new yr(e)),e},e(xr.prototype,{computeContainmentDistance:function(){if(0===arguments.length){var t=new Array(2).fill(null);if(this.computeContainmentDistance(0,t),this.minDistance<=this.terminateDistance)return null;this.computeContainmentDistance(1,t)}else if(2===arguments.length){var e=arguments[0],n=arguments[1],i=1-e,r=pr.getPolygons(this.geom[e]);if(r.size()>0){var s=yr.getLocations(this.geom[i]);if(this.computeContainmentDistance(s,r,n),this.minDistance<=this.terminateDistance)return this.minDistanceLocation[i]=n[0],this.minDistanceLocation[e]=n[1],null}}else if(3===arguments.length)if(arguments[2]instanceof Array&&R(arguments[0],y)&&R(arguments[1],y)){for(var o=arguments[0],a=arguments[1],u=arguments[2],l=0;l<o.size();l++)for(var h=o.get(l),c=0;c<a.size();c++)if(this.computeContainmentDistance(h,a.get(c),u),this.minDistance<=this.terminateDistance)return null}else if(arguments[2]instanceof Array&&arguments[0]instanceof vr&&arguments[1]instanceof Tt){var f=arguments[0],g=arguments[1],d=arguments[2],p=f.getCoordinate();if(L.EXTERIOR!==this.ptLocator.locate(p,g))return this.minDistance=0,d[0]=f,d[1]=new vr(g,p),null}},computeMinDistanceLinesPoints:function(t,e,n){for(var i=0;i<t.size();i++)for(var r=t.get(i),s=0;s<e.size();s++){var o=e.get(s);if(this.computeMinDistance(r,o,n),this.minDistance<=this.terminateDistance)return null}},computeFacetDistance:function(){var t=new Array(2).fill(null),e=kn.getLines(this.geom[0]),n=kn.getLines(this.geom[1]),i=mr.getPoints(this.geom[0]),r=mr.getPoints(this.geom[1]);return this.computeMinDistanceLines(e,n,t),this.updateMinDistance(t,!1),this.minDistance<=this.terminateDistance?null:(t[0]=null,t[1]=null,this.computeMinDistanceLinesPoints(e,r,t),this.updateMinDistance(t,!1),this.minDistance<=this.terminateDistance?null:(t[0]=null,t[1]=null,this.computeMinDistanceLinesPoints(n,i,t),this.updateMinDistance(t,!0),this.minDistance<=this.terminateDistance?null:(t[0]=null,t[1]=null,this.computeMinDistancePoints(i,r,t),void this.updateMinDistance(t,!1))))},nearestLocations:function(){return this.computeMinDistance(),this.minDistanceLocation},updateMinDistance:function(t,e){return null===t[0]?null:void(e?(this.minDistanceLocation[0]=t[1],this.minDistanceLocation[1]=t[0]):(this.minDistanceLocation[0]=t[0],this.minDistanceLocation[1]=t[1]))},nearestPoints:function(){this.computeMinDistance();var t=[this.minDistanceLocation[0].getCoordinate(),this.minDistanceLocation[1].getCoordinate()];return t},computeMinDistance:function(){if(0===arguments.length){if(null!==this.minDistanceLocation)return null;if(this.minDistanceLocation=new Array(2).fill(null),this.computeContainmentDistance(),this.minDistance<=this.terminateDistance)return null;this.computeFacetDistance()}else if(3===arguments.length)if(arguments[2]instanceof Array&&arguments[0]instanceof St&&arguments[1]instanceof Lt){var t=arguments[0],e=arguments[1],n=arguments[2];if(t.getEnvelopeInternal().distance(e.getEnvelopeInternal())>this.minDistance)return null;for(var i=t.getCoordinates(),r=e.getCoordinate(),s=0;s<i.length-1;s++){var o=he.distancePointLine(r,i[s],i[s+1]);if(o<this.minDistance){this.minDistance=o;var a=new ce(i[s],i[s+1]),u=a.closestPoint(r);n[0]=new vr(t,s,u),n[1]=new vr(e,0,r)}if(this.minDistance<=this.terminateDistance)return null}}else if(arguments[2]instanceof Array&&arguments[0]instanceof St&&arguments[1]instanceof St){var l=arguments[0],h=arguments[1],c=arguments[2];if(l.getEnvelopeInternal().distance(h.getEnvelopeInternal())>this.minDistance)return null;for(var i=l.getCoordinates(),f=h.getCoordinates(),s=0;s<i.length-1;s++)for(var g=0;g<f.length-1;g++){var o=he.distanceLineLine(i[s],i[s+1],f[g],f[g+1]);if(o<this.minDistance){this.minDistance=o;var d=new ce(i[s],i[s+1]),p=new ce(f[g],f[g+1]),v=d.closestPoints(p);c[0]=new vr(l,s,v[0]),c[1]=new vr(h,g,v[1])}if(this.minDistance<=this.terminateDistance)return null}}},computeMinDistancePoints:function(t,e,n){for(var i=0;i<t.size();i++)for(var r=t.get(i),s=0;s<e.size();s++){var o=e.get(s),a=r.getCoordinate().distance(o.getCoordinate());if(a<this.minDistance&&(this.minDistance=a,n[0]=new vr(r,0,r.getCoordinate()),n[1]=new vr(o,0,o.getCoordinate())),this.minDistance<=this.terminateDistance)return null}},distance:function(){if(null===this.geom[0]||null===this.geom[1])throw new i("null geometries are not supported");return this.geom[0].isEmpty()||this.geom[1].isEmpty()?0:(this.computeMinDistance(),this.minDistance)},computeMinDistanceLines:function(t,e,n){for(var i=0;i<t.size();i++)for(var r=t.get(i),s=0;s<e.size();s++){var o=e.get(s);if(this.computeMinDistance(r,o,n),this.minDistance<=this.terminateDistance)return null}},interfaces_:function(){return[]},getClass:function(){return xr}}),xr.distance=function(t,e){var n=new xr(t,e);return n.distance()},xr.isWithinDistance=function(t,e,n){var i=new xr(t,e,n);return i.distance()<=n},xr.nearestPoints=function(t,e){var n=new xr(t,e);return n.nearestPoints()};var wo=Object.freeze({DistanceOp:xr});e(Er.prototype,{getCoordinates:function(){if(null===this.coordinates){for(var t=0,e=0,n=new N,i=this.directedEdges.iterator();i.hasNext();){var r=i.next();r.getEdgeDirection()?t++:e++,n.add(r.getEdge().getLine().getCoordinates(),!1,r.getEdgeDirection())}this.coordinates=n.toCoordinateArray(),e>t&&H.reverse(this.coordinates)}return this.coordinates},toLineString:function(){return this.factory.createLineString(this.getCoordinates())},add:function(t){this.directedEdges.add(t)},interfaces_:function(){return[]},getClass:function(){return Er}}),e(Ir.prototype,{setVisited:function(t){this._isVisited=t},isMarked:function(){return this._isMarked},setData:function(t){this.data=t},getData:function(){return this.data},setMarked:function(t){this._isMarked=t},getContext:function(){return this.data},isVisited:function(){return this._isVisited},setContext:function(t){this.data=t},interfaces_:function(){return[]},getClass:function(){return Ir}}),Ir.getComponentWithVisitedState=function(t,e){for(;t.hasNext();){var n=t.next();if(n.isVisited()===e)return n}return null},Ir.setVisited=function(t,e){for(;t.hasNext();){var n=t.next();n.setVisited(e)}},Ir.setMarked=function(t,e){for(;t.hasNext();){var n=t.next();n.setMarked(e)}},h(Nr,Ir),e(Nr.prototype,{isRemoved:function(){return null===this.parentEdge},compareDirection:function(t){return this.quadrant>t.quadrant?1:this.quadrant<t.quadrant?-1:he.computeOrientation(t.p0,t.p1,this.p1)},getCoordinate:function(){return this.from.getCoordinate()},print:function(t){var e=this.getClass().getName(),n=e.lastIndexOf("."),i=e.substring(n+1);t.print(" "+i+": "+this.p0+" - "+this.p1+" "+this.quadrant+":"+this.angle)},getDirectionPt:function(){return this.p1},getAngle:function(){return this.angle},compareTo:function(t){var e=t;return this.compareDirection(e)},getFromNode:function(){return this.from},getSym:function(){return this.sym;
},setEdge:function(t){this.parentEdge=t},remove:function(){this.sym=null,this.parentEdge=null},getEdge:function(){return this.parentEdge},getQuadrant:function(){return this.quadrant},setSym:function(t){this.sym=t},getToNode:function(){return this.to},getEdgeDirection:function(){return this.edgeDirection},interfaces_:function(){return[s]},getClass:function(){return Nr}}),Nr.toEdges=function(t){for(var e=new I,n=t.iterator();n.hasNext();)e.add(n.next().parentEdge);return e},h(Cr,Nr),e(Cr.prototype,{getNext:function(){return 2!==this.getToNode().getDegree()?null:this.getToNode().getOutEdges().getEdges().get(0)===this.getSym()?this.getToNode().getOutEdges().getEdges().get(1):(f.isTrue(this.getToNode().getOutEdges().getEdges().get(1)===this.getSym()),this.getToNode().getOutEdges().getEdges().get(0))},interfaces_:function(){return[]},getClass:function(){return Cr}}),h(Sr,Ir),e(Sr.prototype,{isRemoved:function(){return null===this.dirEdge},setDirectedEdges:function(t,e){this.dirEdge=[t,e],t.setEdge(this),e.setEdge(this),t.setSym(e),e.setSym(t),t.getFromNode().addOutEdge(t),e.getFromNode().addOutEdge(e)},getDirEdge:function(){if(Number.isInteger(arguments[0])){var t=arguments[0];return this.dirEdge[t]}if(arguments[0]instanceof Lr){var e=arguments[0];return this.dirEdge[0].getFromNode()===e?this.dirEdge[0]:this.dirEdge[1].getFromNode()===e?this.dirEdge[1]:null}},remove:function(){this.dirEdge=null},getOppositeNode:function(t){return this.dirEdge[0].getFromNode()===t?this.dirEdge[0].getToNode():this.dirEdge[1].getFromNode()===t?this.dirEdge[1].getToNode():null},interfaces_:function(){return[]},getClass:function(){return Sr}}),e(wr.prototype,{getNextEdge:function(t){var e=this.getIndex(t);return this.outEdges.get(this.getIndex(e+1))},getCoordinate:function(){var t=this.iterator();if(!t.hasNext())return null;var e=t.next();return e.getCoordinate()},iterator:function(){return this.sortEdges(),this.outEdges.iterator()},sortEdges:function(){this.sorted||(ho.sort(this.outEdges),this.sorted=!0)},remove:function(t){this.outEdges.remove(t)},getEdges:function(){return this.sortEdges(),this.outEdges},getNextCWEdge:function(t){var e=this.getIndex(t);return this.outEdges.get(this.getIndex(e-1))},getIndex:function(){if(arguments[0]instanceof Sr){var t=arguments[0];this.sortEdges();for(var e=0;e<this.outEdges.size();e++){var n=this.outEdges.get(e);if(n.getEdge()===t)return e}return-1}if(arguments[0]instanceof Nr){var i=arguments[0];this.sortEdges();for(var e=0;e<this.outEdges.size();e++){var n=this.outEdges.get(e);if(n===i)return e}return-1}if(Number.isInteger(arguments[0])){var r=arguments[0],s=r%this.outEdges.size();return s<0&&(s+=this.outEdges.size()),s}},add:function(t){this.outEdges.add(t),this.sorted=!1},getDegree:function(){return this.outEdges.size()},interfaces_:function(){return[]},getClass:function(){return wr}}),h(Lr,Ir),e(Lr.prototype,{isRemoved:function(){return null===this.pt},addOutEdge:function(t){this.deStar.add(t)},getCoordinate:function(){return this.pt},getOutEdges:function(){return this.deStar},remove:function(){if(0===arguments.length)this.pt=null;else if(1===arguments.length){var t=arguments[0];this.deStar.remove(t)}},getIndex:function(t){return this.deStar.getIndex(t)},getDegree:function(){return this.deStar.getDegree()},interfaces_:function(){return[]},getClass:function(){return Lr}}),Lr.getEdgesBetween=function(t,e){var n=Nr.toEdges(t.getOutEdges().getEdges()),i=new J(n),r=Nr.toEdges(e.getOutEdges().getEdges());return i.retainAll(r),i},h(Rr,Sr),e(Rr.prototype,{getLine:function(){return this.line},interfaces_:function(){return[]},getClass:function(){return Rr}}),e(Tr.prototype,{find:function(t){return this.nodeMap.get(t)},iterator:function(){return this.nodeMap.values().iterator()},remove:function(t){return this.nodeMap.remove(t)},values:function(){return this.nodeMap.values()},add:function(t){return this.nodeMap.put(t.getCoordinate(),t),t},interfaces_:function(){return[]},getClass:function(){return Tr}}),e(Pr.prototype,{findNodesOfDegree:function(t){for(var e=new I,n=this.nodeIterator();n.hasNext();){var i=n.next();i.getDegree()===t&&e.add(i)}return e},dirEdgeIterator:function(){return this.dirEdges.iterator()},edgeIterator:function(){return this.edges.iterator()},remove:function(){if(arguments[0]instanceof Sr){var t=arguments[0];this.remove(t.getDirEdge(0)),this.remove(t.getDirEdge(1)),this.edges.remove(t),t.remove()}else if(arguments[0]instanceof Nr){var e=arguments[0],n=e.getSym();null!==n&&n.setSym(null),e.getFromNode().remove(e),e.remove(),this.dirEdges.remove(e)}else if(arguments[0]instanceof Lr){for(var i=arguments[0],r=i.getOutEdges().getEdges(),s=r.iterator();s.hasNext();){var o=s.next(),n=o.getSym();null!==n&&this.remove(n),this.dirEdges.remove(o);var a=o.getEdge();null!==a&&this.edges.remove(a)}this.nodeMap.remove(i.getCoordinate()),i.remove()}},findNode:function(t){return this.nodeMap.find(t)},getEdges:function(){return this.edges},nodeIterator:function(){return this.nodeMap.iterator()},contains:function(){if(arguments[0]instanceof Sr){var t=arguments[0];return this.edges.contains(t)}if(arguments[0]instanceof Nr){var e=arguments[0];return this.dirEdges.contains(e)}},add:function(){if(arguments[0]instanceof Lr){var t=arguments[0];this.nodeMap.add(t)}else if(arguments[0]instanceof Sr){var e=arguments[0];this.edges.add(e),this.add(e.getDirEdge(0)),this.add(e.getDirEdge(1))}else if(arguments[0]instanceof Nr){var n=arguments[0];this.dirEdges.add(n)}},getNodes:function(){return this.nodeMap.values()},interfaces_:function(){return[]},getClass:function(){return Pr}}),h(br,Pr),e(br.prototype,{addEdge:function(t){if(t.isEmpty())return null;var e=H.removeRepeatedPoints(t.getCoordinates());if(e.length<=1)return null;var n=e[0],i=e[e.length-1],r=this.getNode(n),s=this.getNode(i),o=new Cr(r,s,e[1],(!0)),a=new Cr(s,r,e[e.length-2],(!1)),u=new Rr(t);u.setDirectedEdges(o,a),this.add(u)},getNode:function(t){var e=this.findNode(t);return null===e&&(e=new Lr(t),this.add(e)),e},interfaces_:function(){return[]},getClass:function(){return br}}),e(Or.prototype,{buildEdgeStringsForUnprocessedNodes:function(){for(var t=this.graph.getNodes().iterator();t.hasNext();){var e=t.next();e.isMarked()||(f.isTrue(2===e.getDegree()),this.buildEdgeStringsStartingAt(e),e.setMarked(!0))}},buildEdgeStringsForNonDegree2Nodes:function(){for(var t=this.graph.getNodes().iterator();t.hasNext();){var e=t.next();2!==e.getDegree()&&(this.buildEdgeStringsStartingAt(e),e.setMarked(!0))}},buildEdgeStringsForObviousStartNodes:function(){this.buildEdgeStringsForNonDegree2Nodes()},getMergedLineStrings:function(){return this.merge(),this.mergedLineStrings},buildEdgeStringsStartingAt:function(t){for(var e=t.getOutEdges().iterator();e.hasNext();){var n=e.next();n.getEdge().isMarked()||this.edgeStrings.add(this.buildEdgeStringStartingWith(n))}},merge:function(){if(null!==this.mergedLineStrings)return null;Ir.setMarked(this.graph.nodeIterator(),!1),Ir.setMarked(this.graph.edgeIterator(),!1),this.edgeStrings=new I,this.buildEdgeStringsForObviousStartNodes(),this.buildEdgeStringsForIsolatedLoops(),this.mergedLineStrings=new I;for(var t=this.edgeStrings.iterator();t.hasNext();){var e=t.next();this.mergedLineStrings.add(e.toLineString())}},buildEdgeStringStartingWith:function(t){var e=new Er(this.factory),n=t;do e.add(n),n.getEdge().setMarked(!0),n=n.getNext();while(null!==n&&n!==t);return e},add:function(){if(arguments[0]instanceof B){var t=arguments[0];t.apply({interfaces_:function(){return[q]},filter:function(t){t instanceof St&&this.add(t)}})}else if(R(arguments[0],v)){var e=arguments[0];this.mergedLineStrings=null;for(var n=e.iterator();n.hasNext();){var i=n.next();this.add(i)}}else if(arguments[0]instanceof St){var r=arguments[0];null===this.factory&&(this.factory=r.getFactory()),this.graph.addEdge(r)}},buildEdgeStringsForIsolatedLoops:function(){this.buildEdgeStringsForUnprocessedNodes()},interfaces_:function(){return[]},getClass:function(){return Or}});var Lo=Object.freeze({LineMerger:Or}),Ro=Object.freeze({OverlayOp:ii});h(_r,Nr),e(_r.prototype,{getNext:function(){return this.next},isInRing:function(){return null!==this.edgeRing},setRing:function(t){this.edgeRing=t},setLabel:function(t){this.label=t},getLabel:function(){return this.label},setNext:function(t){this.next=t},getRing:function(){return this.edgeRing},interfaces_:function(){return[]},getClass:function(){return _r}}),h(Mr,Sr),e(Mr.prototype,{getLine:function(){return this.line},interfaces_:function(){return[]},getClass:function(){return Mr}}),e(Dr.prototype,{visitInteriorRing:function(t,e){var n=t.getCoordinates(),i=n[0],r=Dr.findDifferentPoint(n,i),s=e.findEdgeInSameDirection(i,r),o=e.findEdgeEnd(s),a=null;o.getLabel().getLocation(0,cn.RIGHT)===L.INTERIOR?a=o:o.getSym().getLabel().getLocation(0,cn.RIGHT)===L.INTERIOR&&(a=o.getSym()),f.isTrue(null!==a,"unable to find dirEdge with Interior on RHS"),this.visitLinkedDirectedEdges(a)},visitShellInteriors:function(t,e){if(t instanceof Tt){var n=t;this.visitInteriorRing(n.getExteriorRing(),e)}if(t instanceof Ot)for(var i=t,r=0;r<i.getNumGeometries();r++){var n=i.getGeometryN(r);this.visitInteriorRing(n.getExteriorRing(),e)}},getCoordinate:function(){return this.disconnectedRingcoord},setInteriorEdgesInResult:function(t){for(var e=t.getEdgeEnds().iterator();e.hasNext();){var n=e.next();n.getLabel().getLocation(0,cn.RIGHT)===L.INTERIOR&&n.setInResult(!0)}},visitLinkedDirectedEdges:function(t){var e=t,n=t;do f.isTrue(null!==n,"found null Directed Edge"),n.setVisited(!0),n=n.getNext();while(n!==e)},buildEdgeRings:function(t){for(var e=new I,n=t.iterator();n.hasNext();){var i=n.next();if(i.isInResult()&&null===i.getEdgeRing()){var r=new vn(i,this.geometryFactory);r.linkDirectedEdgesForMinimalEdgeRings();var s=r.buildMinimalRings();e.addAll(s)}}return e},hasUnvisitedShellEdge:function(t){for(var e=0;e<t.size();e++){var n=t.get(e);if(!n.isHole()){var i=n.getEdges(),r=i.get(0);if(r.getLabel().getLocation(0,cn.RIGHT)===L.INTERIOR)for(var s=0;s<i.size();s++)if(r=i.get(s),!r.isVisited())return this.disconnectedRingcoord=r.getCoordinate(),!0}}return!1},isInteriorsConnected:function(){var t=new I;this.geomGraph.computeSplitEdges(t);var e=new Cn(new On);e.addEdges(t),this.setInteriorEdgesInResult(e),e.linkResultDirectedEdges();var n=this.buildEdgeRings(e.getEdgeEnds());return this.visitShellInteriors(this.geomGraph.getGeometry(),e),!this.hasUnvisitedShellEdge(n)},interfaces_:function(){return[]},getClass:function(){return Dr}}),Dr.findDifferentPoint=function(t,e){for(var n=0;n<t.length;n++)if(!t[n].equals(e))return t[n];return null},e(Ar.prototype,{createEdgeEndForNext:function(t,e,n,i){var r=n.segmentIndex+1;if(r>=t.getNumPoints()&&null===i)return null;var s=t.getCoordinate(r);null!==i&&i.segmentIndex===n.segmentIndex&&(s=i.coord);var o=new En(t,n.coord,s,new gn(t.getLabel()));e.add(o)},createEdgeEndForPrev:function(t,e,n,i){var r=n.segmentIndex;if(0===n.dist){if(0===r)return null;r--}var s=t.getCoordinate(r);null!==i&&i.segmentIndex>=r&&(s=i.coord);var o=new gn(t.getLabel());o.flip();var a=new En(t,n.coord,s,o);e.add(a)},computeEdgeEnds:function(){if(1===arguments.length){for(var t=arguments[0],e=new I,n=t;n.hasNext();){var i=n.next();this.computeEdgeEnds(i,e)}return e}if(2===arguments.length){var r=arguments[0],s=arguments[1],o=r.getEdgeIntersectionList();o.addEndpoints();var a=o.iterator(),u=null,l=null;if(!a.hasNext())return null;var h=a.next();do u=l,l=h,h=null,a.hasNext()&&(h=a.next()),null!==l&&(this.createEdgeEndForPrev(r,s,l,u),this.createEdgeEndForNext(r,s,l,h));while(null!==l)}},interfaces_:function(){return[]},getClass:function(){return Ar}}),h(Fr,En),e(Fr.prototype,{insert:function(t){this.edgeEnds.add(t)},print:function(t){t.println("EdgeEndBundle--> Label: "+this.label);for(var e=this.iterator();e.hasNext();){var n=e.next();n.print(t),t.println()}},iterator:function(){return this.edgeEnds.iterator()},getEdgeEnds:function(){return this.edgeEnds},computeLabelOn:function(t,e){for(var n=0,i=!1,r=this.iterator();r.hasNext();){var s=r.next(),o=s.getLabel().getLocation(t);o===L.BOUNDARY&&n++,o===L.INTERIOR&&(i=!0)}var o=L.NONE;i&&(o=L.INTERIOR),n>0&&(o=$n.determineBoundary(e,n)),this.label.setLocation(t,o)},computeLabelSide:function(t,e){for(var n=this.iterator();n.hasNext();){var i=n.next();if(i.getLabel().isArea()){var r=i.getLabel().getLocation(t,e);if(r===L.INTERIOR)return this.label.setLocation(t,e,L.INTERIOR),null;r===L.EXTERIOR&&this.label.setLocation(t,e,L.EXTERIOR)}}},getLabel:function(){return this.label},computeLabelSides:function(t){this.computeLabelSide(t,cn.LEFT),this.computeLabelSide(t,cn.RIGHT)},updateIM:function(t){Jn.updateIM(this.label,t)},computeLabel:function(t){for(var e=!1,n=this.iterator();n.hasNext();){var i=n.next();i.getLabel().isArea()&&(e=!0)}e?this.label=new gn(L.NONE,L.NONE,L.NONE):this.label=new gn(L.NONE);for(var r=0;r<2;r++)this.computeLabelOn(r,t),e&&this.computeLabelSides(r)},interfaces_:function(){return[]},getClass:function(){return Fr}}),h(Gr,Pn),e(Gr.prototype,{updateIM:function(t){for(var e=this.iterator();e.hasNext();){var n=e.next();n.updateIM(t)}},insert:function(t){var e=this.edgeMap.get(t);null===e?(e=new Fr(t),this.insertEdgeEnd(t,e)):e.insert(t)},interfaces_:function(){return[]},getClass:function(){return Gr}}),h(qr,yn),e(qr.prototype,{updateIMFromEdges:function(t){this.edges.updateIM(t)},computeIM:function(t){t.setAtLeastIfValid(this.label.getLocation(0),this.label.getLocation(1),0)},interfaces_:function(){return[]},getClass:function(){return qr}}),h(Br,Nn),e(Br.prototype,{createNode:function(t){return new qr(t,new Gr)},interfaces_:function(){return[]},getClass:function(){return Br}}),e(zr.prototype,{insertEdgeEnds:function(t){for(var e=t.iterator();e.hasNext();){var n=e.next();this.nodes.add(n)}},getNodeIterator:function(){return this.nodes.iterator()},copyNodesAndLabels:function(t,e){for(var n=t.getNodeIterator();n.hasNext();){var i=n.next(),r=this.nodes.addNode(i.getCoordinate());r.setLabel(e,i.getLabel().getLocation(e))}},build:function(t){this.computeIntersectionNodes(t,0),this.copyNodesAndLabels(t,0);var e=new Ar,n=e.computeEdgeEnds(t.getEdgeIterator());this.insertEdgeEnds(n)},computeIntersectionNodes:function(t,e){for(var n=t.getEdgeIterator();n.hasNext();)for(var i=n.next(),r=i.getLabel().getLocation(e),s=i.getEdgeIntersectionList().iterator();s.hasNext();){var o=s.next(),a=this.nodes.addNode(o.coord);r===L.BOUNDARY?a.setLabelBoundary(e):a.getLabel().isNull(e)&&a.setLabel(e,L.INTERIOR)}},interfaces_:function(){return[]},getClass:function(){return zr}}),e(Vr.prototype,{isNodeEdgeAreaLabelsConsistent:function(){for(var t=this.nodeGraph.getNodeIterator();t.hasNext();){var e=t.next();if(!e.getEdges().isAreaLabelsConsistent(this.geomGraph))return this.invalidPoint=e.getCoordinate().copy(),!1}return!0},getInvalidPoint:function(){return this.invalidPoint},hasDuplicateRings:function(){for(var t=this.nodeGraph.getNodeIterator();t.hasNext();)for(var e=t.next(),n=e.getEdges().iterator();n.hasNext();){var i=n.next();if(i.getEdgeEnds().size()>1)return this.invalidPoint=i.getEdge().getCoordinate(0),!0}return!1},isNodeConsistentArea:function(){var t=this.geomGraph.computeSelfNodes(this.li,!0,!0);return t.hasProperIntersection()?(this.invalidPoint=t.getProperIntersectionPoint(),!1):(this.nodeGraph.build(this.geomGraph),this.isNodeEdgeAreaLabelsConsistent())},interfaces_:function(){return[]},getClass:function(){return Vr}}),e(kr.prototype,{buildIndex:function(){this.index=new ke;for(var t=0;t<this.rings.size();t++){var e=this.rings.get(t),n=e.getEnvelopeInternal();this.index.insert(n,e)}},getNestedPoint:function(){return this.nestedPt},isNonNested:function(){this.buildIndex();for(var t=0;t<this.rings.size();t++)for(var e=this.rings.get(t),n=e.getCoordinates(),i=this.index.query(e.getEnvelopeInternal()),r=0;r<i.size();r++){var s=i.get(r),o=s.getCoordinates();if(e!==s&&e.getEnvelopeInternal().intersects(s.getEnvelopeInternal())){var a=Ur.findPtNotNode(n,s,this.graph);if(null!==a){var u=he.isPointInRing(a,o);if(u)return this.nestedPt=a,!1}}}return!0},add:function(t){this.rings.add(t),this.totalEnv.expandToInclude(t.getEnvelopeInternal())},interfaces_:function(){return[]},getClass:function(){return kr}}),e(Yr.prototype,{getErrorType:function(){return this.errorType},getMessage:function(){return Yr.errMsg[this.errorType]},getCoordinate:function(){return this.pt},toString:function(){var t="";return null!==this.pt&&(t=" at or near point "+this.pt),this.getMessage()+t},interfaces_:function(){return[]},getClass:function(){return Yr}}),Yr.ERROR=0,Yr.REPEATED_POINT=1,Yr.HOLE_OUTSIDE_SHELL=2,Yr.NESTED_HOLES=3,Yr.DISCONNECTED_INTERIOR=4,Yr.SELF_INTERSECTION=5,Yr.RING_SELF_INTERSECTION=6,Yr.NESTED_SHELLS=7,Yr.DUPLICATE_RINGS=8,Yr.TOO_FEW_POINTS=9,Yr.INVALID_COORDINATE=10,Yr.RING_NOT_CLOSED=11,Yr.errMsg=["Topology Validation Error","Repeated Point","Hole lies outside shell","Holes are nested","Interior is disconnected","Self-intersection","Ring Self-intersection","Nested shells","Duplicate Rings","Too few distinct points in geometry component","Invalid Coordinate","Ring is not closed"],e(Ur.prototype,{checkInvalidCoordinates:function(){if(arguments[0]instanceof Array){for(var t=arguments[0],e=0;e<t.length;e++)if(!Ur.isValid(t[e]))return this.validErr=new Yr(Yr.INVALID_COORDINATE,t[e]),null}else if(arguments[0]instanceof Tt){var n=arguments[0];if(this.checkInvalidCoordinates(n.getExteriorRing().getCoordinates()),null!==this.validErr)return null;for(var e=0;e<n.getNumInteriorRing();e++)if(this.checkInvalidCoordinates(n.getInteriorRingN(e).getCoordinates()),null!==this.validErr)return null}},checkHolesNotNested:function(t,e){for(var n=new kr(e),i=0;i<t.getNumInteriorRing();i++){var r=t.getInteriorRingN(i);n.add(r)}var s=n.isNonNested();s||(this.validErr=new Yr(Yr.NESTED_HOLES,n.getNestedPoint()))},checkConsistentArea:function(t){var e=new Vr(t),n=e.isNodeConsistentArea();return n?void(e.hasDuplicateRings()&&(this.validErr=new Yr(Yr.DUPLICATE_RINGS,e.getInvalidPoint()))):(this.validErr=new Yr(Yr.SELF_INTERSECTION,e.getInvalidPoint()),null)},isValid:function(){return this.checkValid(this.parentGeometry),null===this.validErr},checkShellInsideHole:function(t,e,n){var i=t.getCoordinates(),r=e.getCoordinates(),s=Ur.findPtNotNode(i,e,n);if(null!==s){var o=he.isPointInRing(s,r);if(!o)return s}var a=Ur.findPtNotNode(r,t,n);if(null!==a){var u=he.isPointInRing(a,i);return u?a:null}return f.shouldNeverReachHere("points in shell and hole appear to be equal"),null},checkNoSelfIntersectingRings:function(t){for(var e=t.getEdgeIterator();e.hasNext();){var n=e.next();if(this.checkNoSelfIntersectingRing(n.getEdgeIntersectionList()),null!==this.validErr)return null}},checkConnectedInteriors:function(t){var e=new Dr(t);e.isInteriorsConnected()||(this.validErr=new Yr(Yr.DISCONNECTED_INTERIOR,e.getCoordinate()))},checkNoSelfIntersectingRing:function(t){for(var e=new at,n=!0,i=t.iterator();i.hasNext();){var r=i.next();if(n)n=!1;else{if(e.contains(r.coord))return this.validErr=new Yr(Yr.RING_SELF_INTERSECTION,r.coord),null;e.add(r.coord)}}},checkHolesInShell:function(t,e){for(var n=t.getExteriorRing(),i=new Ii(n),r=0;r<t.getNumInteriorRing();r++){var s=t.getInteriorRingN(r),o=Ur.findPtNotNode(s.getCoordinates(),n,e);if(null===o)return null;var a=!i.isInside(o);if(a)return this.validErr=new Yr(Yr.HOLE_OUTSIDE_SHELL,o),null}},checkTooFewPoints:function(t){if(t.hasTooFewPoints())return this.validErr=new Yr(Yr.TOO_FEW_POINTS,t.getInvalidPoint()),null},getValidationError:function(){return this.checkValid(this.parentGeometry),this.validErr},checkValid:function(){if(arguments[0]instanceof Lt){var t=arguments[0];this.checkInvalidCoordinates(t.getCoordinates())}else if(arguments[0]instanceof Pt){var e=arguments[0];this.checkInvalidCoordinates(e.getCoordinates())}else if(arguments[0]instanceof bt){var n=arguments[0];if(this.checkInvalidCoordinates(n.getCoordinates()),null!==this.validErr)return null;if(this.checkClosedRing(n),null!==this.validErr)return null;var i=new $n(0,n);if(this.checkTooFewPoints(i),null!==this.validErr)return null;var r=new ae;i.computeSelfNodes(r,!0,!0),this.checkNoSelfIntersectingRings(i)}else if(arguments[0]instanceof St){var s=arguments[0];if(this.checkInvalidCoordinates(s.getCoordinates()),null!==this.validErr)return null;var i=new $n(0,s);this.checkTooFewPoints(i)}else if(arguments[0]instanceof Tt){var o=arguments[0];if(this.checkInvalidCoordinates(o),null!==this.validErr)return null;if(this.checkClosedRings(o),null!==this.validErr)return null;var i=new $n(0,o);if(this.checkTooFewPoints(i),null!==this.validErr)return null;if(this.checkConsistentArea(i),null!==this.validErr)return null;if(!this.isSelfTouchingRingFormingHoleValid&&(this.checkNoSelfIntersectingRings(i),null!==this.validErr))return null;if(this.checkHolesInShell(o,i),null!==this.validErr)return null;if(this.checkHolesNotNested(o,i),null!==this.validErr)return null;this.checkConnectedInteriors(i)}else if(arguments[0]instanceof Ot){for(var a=arguments[0],u=0;u<a.getNumGeometries();u++){var l=a.getGeometryN(u);if(this.checkInvalidCoordinates(l),null!==this.validErr)return null;if(this.checkClosedRings(l),null!==this.validErr)return null}var i=new $n(0,a);if(this.checkTooFewPoints(i),null!==this.validErr)return null;if(this.checkConsistentArea(i),null!==this.validErr)return null;if(!this.isSelfTouchingRingFormingHoleValid&&(this.checkNoSelfIntersectingRings(i),null!==this.validErr))return null;for(var u=0;u<a.getNumGeometries();u++){var l=a.getGeometryN(u);if(this.checkHolesInShell(l,i),null!==this.validErr)return null}for(var u=0;u<a.getNumGeometries();u++){var l=a.getGeometryN(u);if(this.checkHolesNotNested(l,i),null!==this.validErr)return null}if(this.checkShellsNotNested(a,i),null!==this.validErr)return null;this.checkConnectedInteriors(i)}else if(arguments[0]instanceof ft)for(var h=arguments[0],u=0;u<h.getNumGeometries();u++){var c=h.getGeometryN(u);if(this.checkValid(c),null!==this.validErr)return null}else if(arguments[0]instanceof B){var f=arguments[0];if(this.validErr=null,f.isEmpty())return null;if(f instanceof Lt)this.checkValid(f);else if(f instanceof Pt)this.checkValid(f);else if(f instanceof bt)this.checkValid(f);else if(f instanceof St)this.checkValid(f);else if(f instanceof Tt)this.checkValid(f);else if(f instanceof Ot)this.checkValid(f);else{if(!(f instanceof ft))throw new UnsupportedOperationException(f.getClass().getName());this.checkValid(f)}}},setSelfTouchingRingFormingHoleValid:function(t){this.isSelfTouchingRingFormingHoleValid=t},checkShellNotNested:function(t,e,n){var i=t.getCoordinates(),r=e.getExteriorRing(),s=r.getCoordinates(),o=Ur.findPtNotNode(i,r,n);if(null===o)return null;var a=he.isPointInRing(o,s);if(!a)return null;if(e.getNumInteriorRing()<=0)return this.validErr=new Yr(Yr.NESTED_SHELLS,o),null;for(var u=null,l=0;l<e.getNumInteriorRing();l++){var h=e.getInteriorRingN(l);if(u=this.checkShellInsideHole(t,h,n),null===u)return null}this.validErr=new Yr(Yr.NESTED_SHELLS,u)},checkClosedRings:function(t){if(this.checkClosedRing(t.getExteriorRing()),null!==this.validErr)return null;for(var e=0;e<t.getNumInteriorRing();e++)if(this.checkClosedRing(t.getInteriorRingN(e)),null!==this.validErr)return null},checkClosedRing:function(t){if(!t.isClosed()){var e=null;t.getNumPoints()>=1&&(e=t.getCoordinateN(0)),this.validErr=new Yr(Yr.RING_NOT_CLOSED,e)}},checkShellsNotNested:function(t,e){for(var n=0;n<t.getNumGeometries();n++)for(var i=t.getGeometryN(n),r=i.getExteriorRing(),s=0;s<t.getNumGeometries();s++)if(n!==s){var o=t.getGeometryN(s);if(this.checkShellNotNested(r,o,e),null!==this.validErr)return null}},interfaces_:function(){return[]},getClass:function(){return Ur}}),Ur.findPtNotNode=function(t,e,n){for(var i=n.findEdge(e),r=i.getEdgeIntersectionList(),s=0;s<t.length;s++){var o=t[s];if(!r.isIntersection(o))return o}return null},Ur.isValid=function(){if(arguments[0]instanceof B){var t=arguments[0],e=new Ur(t);return e.isValid()}if(arguments[0]instanceof g){var n=arguments[0];return!r.isNaN(n.x)&&(!r.isInfinite(n.x)&&(!r.isNaN(n.y)&&!r.isInfinite(n.y)))}},e(Xr.prototype,{isIncluded:function(){return this._isIncluded},getCoordinates:function(){if(null===this.ringPts){for(var t=new N,e=this.deList.iterator();e.hasNext();){var n=e.next(),i=n.getEdge();Xr.addEdge(i.getLine().getCoordinates(),n.getEdgeDirection(),t)}this.ringPts=t.toCoordinateArray()}return this.ringPts},isIncludedSet:function(){return this._isIncludedSet},isValid:function(){return this.getCoordinates(),!(this.ringPts.length<=3)&&(this.getRing(),Ur.isValid(this.ring))},build:function(t){var e=t;do this.add(e),e.setRing(this),e=e.getNext(),f.isTrue(null!==e,"found null DE in ring"),f.isTrue(e===t||!e.isInRing(),"found DE already in ring");while(e!==t)},isOuterHole:function(){return!!this._isHole&&!this.hasShell()},getPolygon:function(){var t=null;if(null!==this.holes){t=new Array(this.holes.size()).fill(null);for(var e=0;e<this.holes.size();e++)t[e]=this.holes.get(e)}var n=this.factory.createPolygon(this.ring,t);return n},isHole:function(){return this._isHole},isProcessed:function(){return this._isProcessed},addHole:function(){if(arguments[0]instanceof bt){var t=arguments[0];null===this.holes&&(this.holes=new I),this.holes.add(t)}else if(arguments[0]instanceof Xr){var e=arguments[0];e.setShell(this);var n=e.getRing();null===this.holes&&(this.holes=new I),this.holes.add(n)}},setIncluded:function(t){this._isIncluded=t,this._isIncludedSet=!0},getOuterHole:function(){if(this.isHole())return null;for(var t=0;t<this.deList.size();t++){var e=this.deList.get(t),n=e.getSym().getRing();if(n.isOuterHole())return n}return null},computeHole:function(){var t=this.getRing();this._isHole=he.isCCW(t.getCoordinates())},hasShell:function(){return null!==this.shell},isOuterShell:function(){return null!==this.getOuterHole()},getLineString:function(){return this.getCoordinates(),this.factory.createLineString(this.ringPts)},toString:function(){return se.toLineString(new Gt(this.getCoordinates()))},getShell:function(){return this.isHole()?this.shell:this},add:function(t){this.deList.add(t)},getRing:function(){if(null!==this.ring)return this.ring;this.getCoordinates(),this.ringPts.length<3&&A.out.println(this.ringPts);try{this.ring=this.factory.createLinearRing(this.ringPts)}catch(t){if(!(t instanceof S))throw t;A.out.println(this.ringPts)}finally{}return this.ring},updateIncluded:function(){if(this.isHole())return null;for(var t=0;t<this.deList.size();t++){var e=this.deList.get(t),n=e.getSym().getRing().getShell();if(null!==n&&n.isIncludedSet())return this.setIncluded(!n.isIncluded()),null}},setShell:function(t){this.shell=t},setProcessed:function(t){this._isProcessed=t},interfaces_:function(){return[]},getClass:function(){return Xr}}),Xr.findDirEdgesInRing=function(t){var e=t,n=new I;do n.add(e),e=e.getNext(),f.isTrue(null!==e,"found null DE in ring"),f.isTrue(e===t||!e.isInRing(),"found DE already in ring");while(e!==t);return n},Xr.addEdge=function(t,e,n){if(e)for(var i=0;i<t.length;i++)n.add(t[i],!1);else for(var i=t.length-1;i>=0;i--)n.add(t[i],!1)},Xr.findEdgeRingContaining=function(t,e){for(var n=t.getRing(),i=n.getEnvelopeInternal(),r=n.getCoordinateN(0),s=null,o=null,a=e.iterator();a.hasNext();){var u=a.next(),l=u.getRing(),h=l.getEnvelopeInternal();if(!h.equals(i)&&h.contains(i)){r=H.ptNotInList(n.getCoordinates(),l.getCoordinates());var c=!1;he.isPointInRing(r,l.getCoordinates())&&(c=!0),c&&(null===s||o.contains(h))&&(s=u,o=s.getRing().getEnvelopeInternal())}}return s},e(Hr.prototype,{compare:function(t,e){var n=t,i=e;return n.getRing().getEnvelope().compareTo(i.getRing().getEnvelope())},interfaces_:function(){return[a]},getClass:function(){return Hr}}),Xr.EnvelopeComparator=Hr,h(Wr,Pr),e(Wr.prototype,{findEdgeRing:function(t){var e=new Xr(this.factory);return e.build(t),e},computeDepthParity:function(){if(0===arguments.length)for(;;){var t=null;if(null===t)return null;this.computeDepthParity(t)}else if(1===arguments.length){arguments[0]}},computeNextCWEdges:function(){for(var t=this.nodeIterator();t.hasNext();){var e=t.next();Wr.computeNextCWEdges(e)}},addEdge:function(t){if(t.isEmpty())return null;var e=H.removeRepeatedPoints(t.getCoordinates());if(e.length<2)return null;var n=e[0],i=e[e.length-1],r=this.getNode(n),s=this.getNode(i),o=new _r(r,s,e[1],(!0)),a=new _r(s,r,e[e.length-2],(!1)),u=new Mr(t);u.setDirectedEdges(o,a),this.add(u)},deleteCutEdges:function(){this.computeNextCWEdges(),Wr.findLabeledEdgeRings(this.dirEdges);for(var t=new I,e=this.dirEdges.iterator();e.hasNext();){var n=e.next();if(!n.isMarked()){var i=n.getSym();if(n.getLabel()===i.getLabel()){n.setMarked(!0),i.setMarked(!0);var r=n.getEdge();t.add(r.getLine())}}}return t},getEdgeRings:function(){this.computeNextCWEdges(),Wr.label(this.dirEdges,-1);var t=Wr.findLabeledEdgeRings(this.dirEdges);this.convertMaximalToMinimalEdgeRings(t);for(var e=new I,n=this.dirEdges.iterator();n.hasNext();){var i=n.next();if(!i.isMarked()&&!i.isInRing()){var r=this.findEdgeRing(i);e.add(r)}}return e},getNode:function(t){var e=this.findNode(t);return null===e&&(e=new Lr(t),this.add(e)),e},convertMaximalToMinimalEdgeRings:function(t){for(var e=t.iterator();e.hasNext();){var n=e.next(),i=n.getLabel(),r=Wr.findIntersectionNodes(n,i);if(null!==r)for(var s=r.iterator();s.hasNext();){var o=s.next();Wr.computeNextCCWEdges(o,i)}}},deleteDangles:function(){for(var t=this.findNodesOfDegree(1),e=new J,n=new pe,i=t.iterator();i.hasNext();)n.push(i.next());for(;!n.isEmpty();){var r=n.pop();Wr.deleteAllEdges(r);for(var s=r.getOutEdges().getEdges(),i=s.iterator();i.hasNext();){var o=i.next();o.setMarked(!0);var a=o.getSym();null!==a&&a.setMarked(!0);var u=o.getEdge();e.add(u.getLine());var l=o.getToNode();1===Wr.getDegreeNonDeleted(l)&&n.push(l)}}return e},interfaces_:function(){return[]},getClass:function(){return Wr}}),Wr.findLabeledEdgeRings=function(t){for(var e=new I,n=1,i=t.iterator();i.hasNext();){var r=i.next();if(!(r.isMarked()||r.getLabel()>=0)){e.add(r);var s=Xr.findDirEdgesInRing(r);Wr.label(s,n),n++}}return e},Wr.getDegreeNonDeleted=function(t){for(var e=t.getOutEdges().getEdges(),n=0,i=e.iterator();i.hasNext();){var r=i.next();r.isMarked()||n++}return n},Wr.deleteAllEdges=function(t){for(var e=t.getOutEdges().getEdges(),n=e.iterator();n.hasNext();){var i=n.next();i.setMarked(!0);var r=i.getSym();null!==r&&r.setMarked(!0)}},Wr.label=function(t,e){for(var n=t.iterator();n.hasNext();){var i=n.next();i.setLabel(e)}},Wr.computeNextCWEdges=function(t){for(var e=t.getOutEdges(),n=null,i=null,r=e.getEdges().iterator();r.hasNext();){var s=r.next();if(!s.isMarked()){if(null===n&&(n=s),null!==i){var o=i.getSym();o.setNext(s)}i=s}}if(null!==i){var o=i.getSym();o.setNext(n)}},Wr.computeNextCCWEdges=function(t,e){for(var n=t.getOutEdges(),i=null,r=null,s=n.getEdges(),o=s.size()-1;o>=0;o--){var a=s.get(o),u=a.getSym(),l=null;a.getLabel()===e&&(l=a);var h=null;u.getLabel()===e&&(h=u),null===l&&null===h||(null!==h&&(r=h),null!==l&&(null!==r&&(r.setNext(l),r=null),null===i&&(i=l)))}null!==r&&(f.isTrue(null!==i),r.setNext(i))},Wr.getDegree=function(t,e){for(var n=t.getOutEdges().getEdges(),i=0,r=n.iterator();r.hasNext();){var s=r.next();s.getLabel()===e&&i++}return i},Wr.findIntersectionNodes=function(t,e){var n=t,i=null;do{var r=n.getFromNode();Wr.getDegree(r,e)>1&&(null===i&&(i=new I),i.add(r)),n=n.getNext(),f.isTrue(null!==n,"found null DE in ring"),f.isTrue(n===t||!n.isInRing(),"found DE already in ring")}while(n!==t);return i},e(jr.prototype,{getGeometry:function(){return null===this.geomFactory&&(this.geomFactory=new ie),this.polygonize(),this.extractOnlyPolygonal?this.geomFactory.buildGeometry(this.polyList):this.geomFactory.createGeometryCollection(ie.toGeometryArray(this.polyList))},getInvalidRingLines:function(){return this.polygonize(),this.invalidRingLines},findValidRings:function(t,e,n){for(var i=t.iterator();i.hasNext();){var r=i.next();r.isValid()?e.add(r):n.add(r.getLineString())}},polygonize:function(){if(null!==this.polyList)return null;
if(this.polyList=new I,null===this.graph)return null;this.dangles=this.graph.deleteDangles(),this.cutEdges=this.graph.deleteCutEdges();var t=this.graph.getEdgeRings(),e=new I;this.invalidRingLines=new I,this.isCheckingRingsValid?this.findValidRings(t,e,this.invalidRingLines):e=t,this.findShellsAndHoles(e),jr.assignHolesToShells(this.holeList,this.shellList),ho.sort(this.shellList,new Xr.EnvelopeComparator);var n=!0;this.extractOnlyPolygonal&&(jr.findDisjointShells(this.shellList),n=!1),this.polyList=jr.extractPolygons(this.shellList,n)},getDangles:function(){return this.polygonize(),this.dangles},getCutEdges:function(){return this.polygonize(),this.cutEdges},getPolygons:function(){return this.polygonize(),this.polyList},add:function(){if(R(arguments[0],v))for(var t=arguments[0],e=t.iterator();e.hasNext();){var n=e.next();this.add(n)}else if(arguments[0]instanceof St){var i=arguments[0];this.geomFactory=i.getFactory(),null===this.graph&&(this.graph=new Wr(this.geomFactory)),this.graph.addEdge(i)}else if(arguments[0]instanceof B){var r=arguments[0];r.apply(this.lineStringAdder)}},setCheckRingsValid:function(t){this.isCheckingRingsValid=t},findShellsAndHoles:function(t){this.holeList=new I,this.shellList=new I;for(var e=t.iterator();e.hasNext();){var n=e.next();n.computeHole(),n.isHole()?this.holeList.add(n):this.shellList.add(n)}},interfaces_:function(){return[]},getClass:function(){return jr}}),jr.findOuterShells=function(t){for(var e=t.iterator();e.hasNext();){var n=e.next(),i=n.getOuterHole();null===i||i.isProcessed()||(n.setIncluded(!0),i.setProcessed(!0))}},jr.extractPolygons=function(t,e){for(var n=new I,i=t.iterator();i.hasNext();){var r=i.next();(e||r.isIncluded())&&n.add(r.getPolygon())}return n},jr.assignHolesToShells=function(t,e){for(var n=t.iterator();n.hasNext();){var i=n.next();jr.assignHoleToShell(i,e)}},jr.assignHoleToShell=function(t,e){var n=Xr.findEdgeRingContaining(t,e);null!==n&&n.addHole(t)},jr.findDisjointShells=function(t){jr.findOuterShells(t);var e=null;do{e=!1;for(var n=t.iterator();n.hasNext();){var i=n.next();i.isIncludedSet()||(i.updateIncluded(),i.isIncludedSet()||(e=!0))}}while(e)},e(Kr.prototype,{filter:function(t){t instanceof St&&this.p.add(t)},interfaces_:function(){return[q]},getClass:function(){return Kr}}),jr.LineStringAdder=Kr;var To=Object.freeze({Polygonizer:jr});e(Zr.prototype,{insertEdgeEnds:function(t){for(var e=t.iterator();e.hasNext();){var n=e.next();this.nodes.add(n)}},computeProperIntersectionIM:function(t,e){var n=this.arg[0].getGeometry().getDimension(),i=this.arg[1].getGeometry().getDimension(),r=t.hasProperIntersection(),s=t.hasProperInteriorIntersection();2===n&&2===i?r&&e.setAtLeast("212101212"):2===n&&1===i?(r&&e.setAtLeast("FFF0FFFF2"),s&&e.setAtLeast("1FFFFF1FF")):1===n&&2===i?(r&&e.setAtLeast("F0FFFFFF2"),s&&e.setAtLeast("1F1FFFFFF")):1===n&&1===i&&s&&e.setAtLeast("0FFFFFFFF")},labelIsolatedEdges:function(t,e){for(var n=this.arg[t].getEdgeIterator();n.hasNext();){var i=n.next();i.isIsolated()&&(this.labelIsolatedEdge(i,e,this.arg[e].getGeometry()),this.isolatedEdges.add(i))}},labelIsolatedEdge:function(t,e,n){if(n.getDimension()>0){var i=this.ptLocator.locate(t.getCoordinate(),n);t.getLabel().setAllLocations(e,i)}else t.getLabel().setAllLocations(e,L.EXTERIOR)},computeIM:function(){var t=new fe;if(t.set(L.EXTERIOR,L.EXTERIOR,2),!this.arg[0].getGeometry().getEnvelopeInternal().intersects(this.arg[1].getGeometry().getEnvelopeInternal()))return this.computeDisjointIM(t),t;this.arg[0].computeSelfNodes(this.li,!1),this.arg[1].computeSelfNodes(this.li,!1);var e=this.arg[0].computeEdgeIntersections(this.arg[1],this.li,!1);this.computeIntersectionNodes(0),this.computeIntersectionNodes(1),this.copyNodesAndLabels(0),this.copyNodesAndLabels(1),this.labelIsolatedNodes(),this.computeProperIntersectionIM(e,t);var n=new Ar,i=n.computeEdgeEnds(this.arg[0].getEdgeIterator());this.insertEdgeEnds(i);var r=n.computeEdgeEnds(this.arg[1].getEdgeIterator());return this.insertEdgeEnds(r),this.labelNodeEdges(),this.labelIsolatedEdges(0,1),this.labelIsolatedEdges(1,0),this.updateIM(t),t},labelNodeEdges:function(){for(var t=this.nodes.iterator();t.hasNext();){var e=t.next();e.getEdges().computeLabelling(this.arg)}},copyNodesAndLabels:function(t){for(var e=this.arg[t].getNodeIterator();e.hasNext();){var n=e.next(),i=this.nodes.addNode(n.getCoordinate());i.setLabel(t,n.getLabel().getLocation(t))}},labelIntersectionNodes:function(t){for(var e=this.arg[t].getEdgeIterator();e.hasNext();)for(var n=e.next(),i=n.getLabel().getLocation(t),r=n.getEdgeIntersectionList().iterator();r.hasNext();){var s=r.next(),o=this.nodes.find(s.coord);o.getLabel().isNull(t)&&(i===L.BOUNDARY?o.setLabelBoundary(t):o.setLabel(t,L.INTERIOR))}},labelIsolatedNode:function(t,e){var n=this.ptLocator.locate(t.getCoordinate(),this.arg[e].getGeometry());t.getLabel().setAllLocations(e,n)},computeIntersectionNodes:function(t){for(var e=this.arg[t].getEdgeIterator();e.hasNext();)for(var n=e.next(),i=n.getLabel().getLocation(t),r=n.getEdgeIntersectionList().iterator();r.hasNext();){var s=r.next(),o=this.nodes.addNode(s.coord);i===L.BOUNDARY?o.setLabelBoundary(t):o.getLabel().isNull(t)&&o.setLabel(t,L.INTERIOR)}},labelIsolatedNodes:function(){for(var t=this.nodes.iterator();t.hasNext();){var e=t.next(),n=e.getLabel();f.isTrue(n.getGeometryCount()>0,"node with empty label found"),e.isIsolated()&&(n.isNull(0)?this.labelIsolatedNode(e,0):this.labelIsolatedNode(e,1))}},updateIM:function(t){for(var e=this.isolatedEdges.iterator();e.hasNext();){var n=e.next();n.updateIM(t)}for(var i=this.nodes.iterator();i.hasNext();){var r=i.next();r.updateIM(t),r.updateIMFromEdges(t)}},computeDisjointIM:function(t){var e=this.arg[0].getGeometry();e.isEmpty()||(t.set(L.INTERIOR,L.EXTERIOR,e.getDimension()),t.set(L.BOUNDARY,L.EXTERIOR,e.getBoundaryDimension()));var n=this.arg[1].getGeometry();n.isEmpty()||(t.set(L.EXTERIOR,L.INTERIOR,n.getDimension()),t.set(L.EXTERIOR,L.BOUNDARY,n.getBoundaryDimension()))},interfaces_:function(){return[]},getClass:function(){return Zr}}),e(Qr.prototype,{isContainedInBoundary:function(t){if(t instanceof Tt)return!1;if(t instanceof Lt)return this.isPointContainedInBoundary(t);if(t instanceof St)return this.isLineStringContainedInBoundary(t);for(var e=0;e<t.getNumGeometries();e++){var n=t.getGeometryN(e);if(!this.isContainedInBoundary(n))return!1}return!0},isLineSegmentContainedInBoundary:function(t,e){if(t.equals(e))return this.isPointContainedInBoundary(t);if(t.x===e.x){if(t.x===this.rectEnv.getMinX()||t.x===this.rectEnv.getMaxX())return!0}else if(t.y===e.y&&(t.y===this.rectEnv.getMinY()||t.y===this.rectEnv.getMaxY()))return!0;return!1},isLineStringContainedInBoundary:function(t){for(var e=t.getCoordinateSequence(),n=new g,i=new g,r=0;r<e.size()-1;r++)if(e.getCoordinate(r,n),e.getCoordinate(r+1,i),!this.isLineSegmentContainedInBoundary(n,i))return!1;return!0},isPointContainedInBoundary:function(){if(arguments[0]instanceof Lt){var t=arguments[0];return this.isPointContainedInBoundary(t.getCoordinate())}if(arguments[0]instanceof g){var e=arguments[0];return e.x===this.rectEnv.getMinX()||e.x===this.rectEnv.getMaxX()||e.y===this.rectEnv.getMinY()||e.y===this.rectEnv.getMaxY()}},contains:function(t){return!!this.rectEnv.contains(t.getEnvelopeInternal())&&!this.isContainedInBoundary(t)},interfaces_:function(){return[]},getClass:function(){return Qr}}),Qr.contains=function(t,e){var n=new Qr(t);return n.contains(e)},e(Jr.prototype,{intersects:function(t,e){var n=new C(t,e);if(!this.rectEnv.intersects(n))return!1;if(this.rectEnv.intersects(t))return!0;if(this.rectEnv.intersects(e))return!0;if(t.compareTo(e)>0){var i=t;t=e,e=i}var r=!1;return e.y>t.y&&(r=!0),r?this.li.computeIntersection(t,e,this.diagDown0,this.diagDown1):this.li.computeIntersection(t,e,this.diagUp0,this.diagUp1),!!this.li.hasIntersection()},interfaces_:function(){return[]},getClass:function(){return Jr}}),e($r.prototype,{applyTo:function(t){for(var e=0;e<t.getNumGeometries()&&!this._isDone;e++){var n=t.getGeometryN(e);if(n instanceof ft)this.applyTo(n);else if(this.visit(n),this.isDone())return this._isDone=!0,null}},interfaces_:function(){return[]},getClass:function(){return $r}}),e(ts.prototype,{intersects:function(t){if(!this.rectEnv.intersects(t.getEnvelopeInternal()))return!1;var e=new es(this.rectEnv);if(e.applyTo(t),e.intersects())return!0;var n=new ns(this.rectangle);if(n.applyTo(t),n.containsPoint())return!0;var i=new is(this.rectangle);return i.applyTo(t),!!i.intersects()},interfaces_:function(){return[]},getClass:function(){return ts}}),ts.intersects=function(t,e){var n=new ts(t);return n.intersects(e)},h(es,$r),e(es.prototype,{isDone:function(){return this._intersects===!0},visit:function(t){var e=t.getEnvelopeInternal();return this.rectEnv.intersects(e)?this.rectEnv.contains(e)?(this._intersects=!0,null):e.getMinX()>=this.rectEnv.getMinX()&&e.getMaxX()<=this.rectEnv.getMaxX()?(this._intersects=!0,null):e.getMinY()>=this.rectEnv.getMinY()&&e.getMaxY()<=this.rectEnv.getMaxY()?(this._intersects=!0,null):void 0:null},intersects:function(){return this._intersects},interfaces_:function(){return[]},getClass:function(){return es}}),h(ns,$r),e(ns.prototype,{isDone:function(){return this._containsPoint===!0},visit:function(t){if(!(t instanceof Tt))return null;var e=t.getEnvelopeInternal();if(!this.rectEnv.intersects(e))return null;for(var n=new g,i=0;i<4;i++)if(this.rectSeq.getCoordinate(i,n),e.contains(n)&&Tn.containsPointInPolygon(n,t))return this._containsPoint=!0,null},containsPoint:function(){return this._containsPoint},interfaces_:function(){return[]},getClass:function(){return ns}}),h(is,$r),e(is.prototype,{intersects:function(){return this.hasIntersection},isDone:function(){return this.hasIntersection===!0},visit:function(t){var e=t.getEnvelopeInternal();if(!this.rectEnv.intersects(e))return null;var n=kn.getLines(t);this.checkIntersectionWithLineStrings(n)},checkIntersectionWithLineStrings:function(t){for(var e=t.iterator();e.hasNext();){var n=e.next();if(this.checkIntersectionWithSegments(n),this.hasIntersection)return null}},checkIntersectionWithSegments:function(t){for(var e=t.getCoordinateSequence(),n=1;n<e.size();n++)if(e.getCoordinate(n-1,this.p0),e.getCoordinate(n,this.p1),this.rectIntersector.intersects(this.p0,this.p1))return this.hasIntersection=!0,null},interfaces_:function(){return[]},getClass:function(){return is}}),h(rs,ti),e(rs.prototype,{getIntersectionMatrix:function(){return this._relate.computeIM()},interfaces_:function(){return[]},getClass:function(){return rs}}),rs.covers=function(t,e){return!!t.getEnvelopeInternal().covers(e.getEnvelopeInternal())&&(!!t.isRectangle()||rs.relate(t,e).isCovers())},rs.intersects=function(t,e){return!!t.getEnvelopeInternal().intersects(e.getEnvelopeInternal())&&(t.isRectangle()?ts.intersects(t,e):e.isRectangle()?ts.intersects(e,t):rs.relate(t,e).isIntersects())},rs.touches=function(t,e){return!!t.getEnvelopeInternal().intersects(e.getEnvelopeInternal())&&rs.relate(t,e).isTouches(t.getDimension(),e.getDimension())},rs.within=function(t,e){return e.contains(t)},rs.coveredBy=function(t,e){return rs.covers(e,t)},rs.relate=function(){if(2===arguments.length){var t=arguments[0],e=arguments[1],n=new rs(t,e),i=n.getIntersectionMatrix();return i}if(3===arguments.length){if("string"==typeof arguments[2]&&arguments[0]instanceof B&&arguments[1]instanceof B){var r=arguments[0],s=arguments[1],o=arguments[2];return rs.relateWithCheck(r,s).matches(o)}if(R(arguments[2],V)&&arguments[0]instanceof B&&arguments[1]instanceof B){var a=arguments[0],u=arguments[1],l=arguments[2],n=new rs(a,u,l),i=n.getIntersectionMatrix();return i}}},rs.overlaps=function(t,e){return!!t.getEnvelopeInternal().intersects(e.getEnvelopeInternal())&&rs.relate(t,e).isOverlaps(t.getDimension(),e.getDimension())},rs.disjoint=function(t,e){return!t.intersects(e)},rs.relateWithCheck=function(t,e){return t.checkNotGeometryCollection(t),t.checkNotGeometryCollection(e),rs.relate(t,e)},rs.crosses=function(t,e){return!!t.getEnvelopeInternal().intersects(e.getEnvelopeInternal())&&rs.relate(t,e).isCrosses(t.getDimension(),e.getDimension())},rs.contains=function(t,e){return!!t.getEnvelopeInternal().contains(e.getEnvelopeInternal())&&(t.isRectangle()?Qr.contains(t,e):rs.relate(t,e).isContains())};var Po=Object.freeze({RelateOp:rs});e(ss.prototype,{extractElements:function(t,e){if(null===t)return null;for(var n=0;n<t.getNumGeometries();n++){var i=t.getGeometryN(n);this.skipEmpty&&i.isEmpty()||e.add(i)}},combine:function(){for(var t=new I,e=this.inputGeoms.iterator();e.hasNext();){var n=e.next();this.extractElements(n,t)}return 0===t.size()?null!==this.geomFactory?this.geomFactory.createGeometryCollection(null):null:this.geomFactory.buildGeometry(t)},interfaces_:function(){return[]},getClass:function(){return ss}}),ss.combine=function(){if(1===arguments.length){var t=arguments[0],e=new ss(t);return e.combine()}if(2===arguments.length){var n=arguments[0],i=arguments[1],e=new ss(ss.createList(n,i));return e.combine()}if(3===arguments.length){var r=arguments[0],s=arguments[1],o=arguments[2],e=new ss(ss.createList(r,s,o));return e.combine()}},ss.extractFactory=function(t){return t.isEmpty()?null:t.iterator().next().getFactory()},ss.createList=function(){if(2===arguments.length){var t=arguments[0],e=arguments[1],n=new I;return n.add(t),n.add(e),n}if(3===arguments.length){var i=arguments[0],r=arguments[1],s=arguments[2],n=new I;return n.add(i),n.add(r),n.add(s),n}},e(os.prototype,{union:function(){for(var t=new Te,e=new at,n=0;n<this.pointGeom.getNumGeometries();n++){var i=this.pointGeom.getGeometryN(n),r=i.getCoordinate(),s=t.locate(r,this.otherGeom);s===L.EXTERIOR&&e.add(r)}if(0===e.size())return this.otherGeom;var o=null,a=H.toCoordinateArray(e);return o=1===a.length?this.geomFact.createPoint(a[0]):this.geomFact.createMultiPointFromCoords(a),ss.combine(o,this.otherGeom)},interfaces_:function(){return[]},getClass:function(){return os}}),os.union=function(t,e){var n=new os(t,e);return n.union()},e(as.prototype,{filter:function(t){this.sortIndex!==-1&&t.getSortIndex()!==this.sortIndex||this.comps.add(t)},interfaces_:function(){return[ht]},getClass:function(){return as}}),as.extract=function(){if(2===arguments.length){var t=arguments[0],e=arguments[1];return as.extract(t,e,new I)}if(3===arguments.length){var n=arguments[0],i=arguments[1],r=arguments[2];return n.getSortIndex()===i?r.add(n):n instanceof ft&&n.apply(new as(i,r)),r}},e(us.prototype,{reduceToGeometries:function(t){for(var e=new I,n=t.iterator();n.hasNext();){var i=n.next(),r=null;R(i,y)?r=this.unionTree(i):i instanceof B&&(r=i),e.add(r)}return e},extractByEnvelope:function(t,e,n){for(var i=new I,r=0;r<e.getNumGeometries();r++){var s=e.getGeometryN(r);s.getEnvelopeInternal().intersects(t)?i.add(s):n.add(s)}return this.geomFactory.buildGeometry(i)},unionOptimized:function(t,e){var n=t.getEnvelopeInternal(),i=e.getEnvelopeInternal();if(!n.intersects(i)){var r=ss.combine(t,e);return r}if(t.getNumGeometries()<=1&&e.getNumGeometries()<=1)return this.unionActual(t,e);var s=n.intersection(i);return this.unionUsingEnvelopeIntersection(t,e,s)},union:function(){if(null===this.inputPolys)throw new IllegalStateException("union() method cannot be called twice");if(this.inputPolys.isEmpty())return null;this.geomFactory=this.inputPolys.iterator().next().getFactory();for(var t=new ke(us.STRTREE_NODE_CAPACITY),e=this.inputPolys.iterator();e.hasNext();){var n=e.next();t.insert(n.getEnvelopeInternal(),n)}this.inputPolys=null;var i=t.itemsTree(),r=this.unionTree(i);return r},binaryUnion:function(){if(1===arguments.length){var t=arguments[0];return this.binaryUnion(t,0,t.size())}if(3===arguments.length){var e=arguments[0],n=arguments[1],i=arguments[2];if(i-n<=1){var r=us.getGeometry(e,n);return this.unionSafe(r,null)}if(i-n===2)return this.unionSafe(us.getGeometry(e,n),us.getGeometry(e,n+1));var s=Math.trunc((i+n)/2),r=this.binaryUnion(e,n,s),o=this.binaryUnion(e,s,i);return this.unionSafe(r,o)}},repeatedUnion:function(t){for(var e=null,n=t.iterator();n.hasNext();){var i=n.next();e=null===e?i.copy():e.union(i)}return e},unionSafe:function(t,e){return null===t&&null===e?null:null===t?e.copy():null===e?t.copy():this.unionOptimized(t,e)},unionActual:function(t,e){return us.restrictToPolygons(t.union(e))},unionTree:function(t){var e=this.reduceToGeometries(t),n=this.binaryUnion(e);return n},unionUsingEnvelopeIntersection:function(t,e,n){var i=new I,r=this.extractByEnvelope(n,t,i),s=this.extractByEnvelope(n,e,i),o=this.unionActual(r,s);i.add(o);var a=ss.combine(i);return a},bufferUnion:function(){if(1===arguments.length){var t=arguments[0],e=t.get(0).getFactory(),n=e.buildGeometry(t),i=n.buffer(0);return i}if(2===arguments.length){var r=arguments[0],s=arguments[1],e=r.getFactory(),n=e.createGeometryCollection([r,s]),i=n.buffer(0);return i}},interfaces_:function(){return[]},getClass:function(){return us}}),us.restrictToPolygons=function(t){if(R(t,Rt))return t;var e=pr.getPolygons(t);return 1===e.size()?e.get(0):t.getFactory().createMultiPolygon(ie.toPolygonArray(e))},us.getGeometry=function(t,e){return e>=t.size()?null:t.get(e)},us.union=function(t){var e=new us(t);return e.union()},us.STRTREE_NODE_CAPACITY=4,e(ls.prototype,{unionNoOpt:function(t){var e=this.geomFact.createPoint();return si.overlayOp(t,e,ii.UNION)},unionWithNull:function(t,e){return null===t&&null===e?null:null===e?t:null===t?e:t.union(e)},extract:function(){if(R(arguments[0],v))for(var t=arguments[0],e=t.iterator();e.hasNext();){var n=e.next();this.extract(n)}else if(arguments[0]instanceof B){var i=arguments[0];null===this.geomFact&&(this.geomFact=i.getFactory()),as.extract(i,B.SORTINDEX_POLYGON,this.polygons),as.extract(i,B.SORTINDEX_LINESTRING,this.lines),as.extract(i,B.SORTINDEX_POINT,this.points)}},union:function t(){if(null===this.geomFact)return null;var e=null;if(this.points.size()>0){var n=this.geomFact.buildGeometry(this.points);e=this.unionNoOpt(n)}var i=null;if(this.lines.size()>0){var r=this.geomFact.buildGeometry(this.lines);i=this.unionNoOpt(r)}var s=null;this.polygons.size()>0&&(s=us.union(this.polygons));var o=this.unionWithNull(i,s),t=null;return t=null===e?o:null===o?e:os.union(e,o),null===t?this.geomFact.createGeometryCollection():t},interfaces_:function(){return[]},getClass:function(){return ls}}),ls.union=function(){if(1===arguments.length){if(R(arguments[0],v)){var t=arguments[0],e=new ls(t);return e.union()}if(arguments[0]instanceof B){var n=arguments[0],e=new ls(n);return e.union()}}else if(2===arguments.length){var i=arguments[0],r=arguments[1],e=new ls(i,r);return e.union()}};var bo=Object.freeze({UnaryUnionOp:ls}),Oo=Object.freeze({IsValidOp:Ur,ConsistentAreaTester:Vr}),_o=Object.freeze({BoundaryOp:dt,IsSimpleOp:Wi,buffer:So,distance:wo,linemerge:Lo,overlay:Ro,polygonize:To,relate:Po,union:bo,valid:Oo});h(hs,_t.CoordinateOperation),e(hs.prototype,{editCoordinates:function(t,e){if(0===t.length)return null;for(var n=new Array(t.length).fill(null),i=0;i<t.length;i++){var r=new g(t[i]);this.targetPM.makePrecise(r),n[i]=r}var s=new N(n,(!1)),o=s.toCoordinateArray(),a=0;e instanceof St&&(a=2),e instanceof bt&&(a=4);var u=n;return this.removeCollapsed&&(u=null),o.length<a?u:o},interfaces_:function(){return[]},getClass:function(){return hs}}),e(cs.prototype,{fixPolygonalTopology:function(t){var e=t;this.changePrecisionModel||(e=this.changePM(t,this.targetPM));var n=e.buffer(0),i=n;return this.changePrecisionModel||(i=this.changePM(n,t.getPrecisionModel())),i},reducePointwise:function(t){var e=null;if(this.changePrecisionModel){var n=this.createFactory(t.getFactory(),this.targetPM);e=new _t(n)}else e=new _t;var i=this.removeCollapsed;t.getDimension()>=2&&(i=!0);var r=e.edit(t,new hs(this.targetPM,i));return r},changePM:function(t,e){var n=this.createEditor(t.getFactory(),e);return n.edit(t,new _t.NoOpGeometryOperation)},setRemoveCollapsedComponents:function(t){this.removeCollapsed=t},createFactory:function(t,e){var n=new ie(e,t.getSRID(),t.getCoordinateSequenceFactory());return n},setChangePrecisionModel:function(t){this.changePrecisionModel=t},reduce:function(t){var e=this.reducePointwise(t);return this.isPointwise?e:R(e,Rt)?e.isValid()?e:this.fixPolygonalTopology(e):e},setPointwise:function(t){this.isPointwise=t},createEditor:function(t,e){if(t.getPrecisionModel()===e)return new _t;var n=this.createFactory(t,e),i=new _t(n);return i},interfaces_:function(){return[]},getClass:function(){return cs}}),cs.reduce=function(t,e){var n=new cs(e);return n.reduce(t)},cs.reducePointwise=function(t,e){var n=new cs(e);return n.setPointwise(!0),n.reduce(t)};var Mo=Object.freeze({GeometryPrecisionReducer:cs});e(fs.prototype,{simplifySection:function(t,e){if(t+1===e)return null;this.seg.p0=this.pts[t],this.seg.p1=this.pts[e];for(var n=-1,i=t,r=t+1;r<e;r++){var s=this.seg.distance(this.pts[r]);s>n&&(n=s,i=r)}if(n<=this.distanceTolerance)for(var r=t+1;r<e;r++)this.usePt[r]=!1;else this.simplifySection(t,i),this.simplifySection(i,e)},setDistanceTolerance:function(t){this.distanceTolerance=t},simplify:function(){this.usePt=new Array(this.pts.length).fill(null);for(var t=0;t<this.pts.length;t++)this.usePt[t]=!0;this.simplifySection(0,this.pts.length-1);for(var e=new N,t=0;t<this.pts.length;t++)this.usePt[t]&&e.add(new g(this.pts[t]));return e.toCoordinateArray()},interfaces_:function(){return[]},getClass:function(){return fs}}),fs.simplify=function(t,e){var n=new fs(t);return n.setDistanceTolerance(e),n.simplify()},e(gs.prototype,{setEnsureValid:function(t){this.isEnsureValidTopology=t},getResultGeometry:function(){return this.inputGeom.isEmpty()?this.inputGeom.copy():new ds(this.isEnsureValidTopology,this.distanceTolerance).transform(this.inputGeom)},setDistanceTolerance:function(t){if(t<0)throw new i("Tolerance must be non-negative");this.distanceTolerance=t},interfaces_:function(){return[]},getClass:function(){return gs}}),gs.simplify=function(t,e){var n=new gs(t);return n.setDistanceTolerance(e),n.getResultGeometry()},h(ds,xe),e(ds.prototype,{transformPolygon:function(t,e){if(t.isEmpty())return null;var n=xe.prototype.transformPolygon.call(this,t,e);return e instanceof Ot?n:this.createValidArea(n)},createValidArea:function(t){return this.isEnsureValidTopology?t.buffer(0):t},transformCoordinates:function(t,e){var n=t.toCoordinateArray(),i=null;return i=0===n.length?new Array(0).fill(null):fs.simplify(n,this.distanceTolerance),this.factory.getCoordinateSequenceFactory().create(i)},transformMultiPolygon:function(t,e){var n=xe.prototype.transformMultiPolygon.call(this,t,e);return this.createValidArea(n)},transformLinearRing:function(t,e){var n=e instanceof Tt,i=xe.prototype.transformLinearRing.call(this,t,e);return!n||i instanceof bt?i:null},interfaces_:function(){return[]},getClass:function(){return ds}}),gs.DPTransformer=ds,h(ps,ce),e(ps.prototype,{getIndex:function(){return this.index},getParent:function(){return this.parent},interfaces_:function(){return[]},getClass:function(){return ps}}),e(vs.prototype,{addToResult:function(t){this.resultSegs.add(t)},asLineString:function(){return this.parentLine.getFactory().createLineString(vs.extractCoordinates(this.resultSegs))},getResultSize:function(){var t=this.resultSegs.size();return 0===t?0:t+1},getParent:function(){return this.parentLine},getSegment:function(t){return this.segs[t]},getParentCoordinates:function(){return this.parentLine.getCoordinates()},getMinimumSize:function(){return this.minimumSize},asLinearRing:function(){return this.parentLine.getFactory().createLinearRing(vs.extractCoordinates(this.resultSegs))},getSegments:function(){return this.segs},init:function(){var t=this.parentLine.getCoordinates();this.segs=new Array(t.length-1).fill(null);for(var e=0;e<t.length-1;e++){var n=new ps(t[e],t[e+1],this.parentLine,e);this.segs[e]=n}},getResultCoordinates:function(){return vs.extractCoordinates(this.resultSegs)},interfaces_:function(){return[]},getClass:function(){return vs}}),vs.extractCoordinates=function(t){for(var e=new Array(t.size()+1).fill(null),n=null,i=0;i<t.size();i++)n=t.get(i),e[i]=n.p0;return e[e.length-1]=n.p1,e},e(ms.prototype,{remove:function(t){this.index.remove(new C(t.p0,t.p1),t)},add:function(){if(arguments[0]instanceof vs)for(var t=arguments[0],e=t.getSegments(),n=0;n<e.length;n++){var i=e[n];this.add(i)}else if(arguments[0]instanceof ce){var r=arguments[0];this.index.insert(new C(r.p0,r.p1),r)}},query:function(t){var e=new C(t.p0,t.p1),n=new ys(t);this.index.query(e,n);var i=n.getItems();return i},interfaces_:function(){return[]},getClass:function(){return ms}}),e(ys.prototype,{visitItem:function(t){var e=t;C.intersects(e.p0,e.p1,this.querySeg.p0,this.querySeg.p1)&&this.items.add(t)},getItems:function(){return this.items},interfaces_:function(){return[Ae]},getClass:function(){return ys}}),e(xs.prototype,{flatten:function(t,e){var n=this.linePts[t],i=this.linePts[e],r=new ce(n,i);return this.remove(this.line,t,e),this.outputIndex.add(r),r},hasBadIntersection:function(t,e,n){return!!this.hasBadOutputIntersection(n)||!!this.hasBadInputIntersection(t,e,n)},setDistanceTolerance:function(t){this.distanceTolerance=t},simplifySection:function(t,e,n){n+=1;var i=new Array(2).fill(null);if(t+1===e){var r=this.line.getSegment(t);return this.line.addToResult(r),null}var s=!0;if(this.line.getResultSize()<this.line.getMinimumSize()){var o=n+1;o<this.line.getMinimumSize()&&(s=!1)}var a=new Array(1).fill(null),u=this.findFurthestPoint(this.linePts,t,e,a);a[0]>this.distanceTolerance&&(s=!1);var l=new ce;if(l.p0=this.linePts[t],l.p1=this.linePts[e],i[0]=t,i[1]=e,this.hasBadIntersection(this.line,i,l)&&(s=!1),s){var r=this.flatten(t,e);return this.line.addToResult(r),null}this.simplifySection(t,u,n),this.simplifySection(u,e,n)},hasBadOutputIntersection:function(t){for(var e=this.outputIndex.query(t),n=e.iterator();n.hasNext();){var i=n.next();if(this.hasInteriorIntersection(i,t))return!0}return!1},findFurthestPoint:function(t,e,n,i){var r=new ce;r.p0=t[e],r.p1=t[n];for(var s=-1,o=e,a=e+1;a<n;a++){var u=t[a],l=r.distance(u);l>s&&(s=l,o=a)}return i[0]=s,o},simplify:function(t){this.line=t,this.linePts=t.getParentCoordinates(),this.simplifySection(0,this.linePts.length-1,0)},remove:function(t,e,n){for(var i=e;i<n;i++){var r=t.getSegment(i);this.inputIndex.remove(r)}},hasInteriorIntersection:function(t,e){return this.li.computeIntersection(t.p0,t.p1,e.p0,e.p1),this.li.isInteriorIntersection()},hasBadInputIntersection:function(t,e,n){for(var i=this.inputIndex.query(n),r=i.iterator();r.hasNext();){var s=r.next();if(this.hasInteriorIntersection(s,n)){if(xs.isInLineSection(t,e,s))continue;return!0}}return!1},interfaces_:function(){return[]},getClass:function(){return xs}}),xs.isInLineSection=function(t,e,n){if(n.getParent()!==t.getParent())return!1;var i=n.getIndex();return i>=e[0]&&i<e[1]},e(Es.prototype,{setDistanceTolerance:function(t){this.distanceTolerance=t},simplify:function(t){for(var e=t.iterator();e.hasNext();)this.inputIndex.add(e.next());for(var e=t.iterator();e.hasNext();){var n=new xs(this.inputIndex,this.outputIndex);n.setDistanceTolerance(this.distanceTolerance),n.simplify(e.next())}},interfaces_:function(){return[]},getClass:function(){return Es}}),e(Is.prototype,{getResultGeometry:function(){if(this.inputGeom.isEmpty())return this.inputGeom.copy();this.linestringMap=new te,this.inputGeom.apply(new Cs(this)),this.lineSimplifier.simplify(this.linestringMap.values());var t=new Ns(this.linestringMap).transform(this.inputGeom);return t},setDistanceTolerance:function(t){if(t<0)throw new i("Tolerance must be non-negative");this.lineSimplifier.setDistanceTolerance(t)},interfaces_:function(){return[]},getClass:function(){return Is}}),Is.simplify=function(t,e){var n=new Is(t);return n.setDistanceTolerance(e),n.getResultGeometry()},h(Ns,xe),e(Ns.prototype,{transformCoordinates:function(t,e){if(0===t.size())return null;if(e instanceof St){var n=this.linestringMap.get(e);return this.createCoordinateSequence(n.getResultCoordinates())}return xe.prototype.transformCoordinates.call(this,t,e)},interfaces_:function(){return[]},getClass:function(){return Ns}}),e(Cs.prototype,{filter:function(t){if(t instanceof St){var e=t;if(e.isEmpty())return null;var n=e.isClosed()?4:2,i=new vs(e,n);this.tps.linestringMap.put(e,i)}},interfaces_:function(){return[q]},getClass:function(){return Cs}}),Is.LineStringTransformer=Ns,Is.LineStringMapBuilderFilter=Cs;var Do=Object.freeze({DouglasPeuckerSimplifier:gs,TopologyPreservingSimplifier:Is});e(Ss.prototype,{splitAt:function(){if(1===arguments.length){var t=arguments[0],e=this.minimumLen/this.segLen;if(t.distance(this.seg.p0)<this.minimumLen)return this.splitPt=this.seg.pointAlong(e),null;if(t.distance(this.seg.p1)<this.minimumLen)return this.splitPt=Ss.pointAlongReverse(this.seg,e),null;this.splitPt=t}else if(2===arguments.length){var n=arguments[0],i=arguments[1],r=this.getConstrainedLength(n),s=r/this.segLen;i.equals2D(this.seg.p0)?this.splitPt=this.seg.pointAlong(s):this.splitPt=Ss.pointAlongReverse(this.seg,s)}},setMinimumLength:function(t){this.minimumLen=t},getConstrainedLength:function(t){return t<this.minimumLen?this.minimumLen:t},getSplitPoint:function(){return this.splitPt},interfaces_:function(){return[]},getClass:function(){return Ss}}),Ss.pointAlongReverse=function(t,e){var n=new g;return n.x=t.p1.x-e*(t.p1.x-t.p0.x),n.y=t.p1.y-e*(t.p1.y-t.p0.y),n},e(ws.prototype,{findSplitPoint:function(t,e){},interfaces_:function(){return[]},getClass:function(){return ws}}),e(Ls.prototype,{findSplitPoint:function(t,e){var n=t.getLineSegment(),i=n.getLength(),r=i/2,s=new Ss(n),o=Ls.projectedSplitPoint(t,e),a=2*o.distance(e)*.8,u=a;return u>r&&(u=r),s.setMinimumLength(u),s.splitAt(o),s.getSplitPoint()},interfaces_:function(){return[ws]},getClass:function(){return Ls}}),Ls.projectedSplitPoint=function(t,e){var n=t.getLineSegment(),i=n.project(e);return i},e(Rs.prototype,{interfaces_:function(){return[]},getClass:function(){return Rs}}),Rs.triArea=function(t,e,n){return(e.x-t.x)*(n.y-t.y)-(e.y-t.y)*(n.x-t.x)},Rs.isInCircleDDNormalized=function(t,e,n,i){var r=_.valueOf(t.x).selfSubtract(i.x),s=_.valueOf(t.y).selfSubtract(i.y),o=_.valueOf(e.x).selfSubtract(i.x),a=_.valueOf(e.y).selfSubtract(i.y),u=_.valueOf(n.x).selfSubtract(i.x),l=_.valueOf(n.y).selfSubtract(i.y),h=r.multiply(a).selfSubtract(o.multiply(s)),c=o.multiply(l).selfSubtract(u.multiply(a)),f=u.multiply(s).selfSubtract(r.multiply(l)),g=r.multiply(r).selfAdd(s.multiply(s)),d=o.multiply(o).selfAdd(a.multiply(a)),p=u.multiply(u).selfAdd(l.multiply(l)),v=g.selfMultiply(c).selfAdd(d.selfMultiply(f)).selfAdd(p.selfMultiply(h)),m=v.doubleValue()>0;return m},Rs.checkRobustInCircle=function(t,e,n,i){var r=Rs.isInCircleNonRobust(t,e,n,i),s=Rs.isInCircleDDSlow(t,e,n,i),o=Rs.isInCircleCC(t,e,n,i),a=Si.circumcentre(t,e,n);A.out.println("p radius diff a = "+Math.abs(i.distance(a)-t.distance(a))/t.distance(a)),r===s&&r===o||(A.out.println("inCircle robustness failure (double result = "+r+", DD result = "+s+", CC result = "+o+")"),A.out.println(se.toLineString(new Gt([t,e,n,i]))),A.out.println("Circumcentre = "+se.toPoint(a)+" radius = "+t.distance(a)),A.out.println("p radius diff a = "+Math.abs(i.distance(a)/t.distance(a)-1)),A.out.println("p radius diff b = "+Math.abs(i.distance(a)/e.distance(a)-1)),A.out.println("p radius diff c = "+Math.abs(i.distance(a)/n.distance(a)-1)),A.out.println())},Rs.isInCircleDDFast=function(t,e,n,i){var r=_.sqr(t.x).selfAdd(_.sqr(t.y)).selfMultiply(Rs.triAreaDDFast(e,n,i)),s=_.sqr(e.x).selfAdd(_.sqr(e.y)).selfMultiply(Rs.triAreaDDFast(t,n,i)),o=_.sqr(n.x).selfAdd(_.sqr(n.y)).selfMultiply(Rs.triAreaDDFast(t,e,i)),a=_.sqr(i.x).selfAdd(_.sqr(i.y)).selfMultiply(Rs.triAreaDDFast(t,e,n)),u=r.selfSubtract(s).selfAdd(o).selfSubtract(a),l=u.doubleValue()>0;return l},Rs.isInCircleCC=function(t,e,n,i){var r=Si.circumcentre(t,e,n),s=t.distance(r),o=i.distance(r)-s;return o<=0},Rs.isInCircleNormalized=function(t,e,n,i){var r=t.x-i.x,s=t.y-i.y,o=e.x-i.x,a=e.y-i.y,u=n.x-i.x,l=n.y-i.y,h=r*a-o*s,c=o*l-u*a,f=u*s-r*l,g=r*r+s*s,d=o*o+a*a,p=u*u+l*l,v=g*c+d*f+p*h;
return v>0},Rs.isInCircleDDSlow=function(t,e,n,i){var r=_.valueOf(i.x),s=_.valueOf(i.y),o=_.valueOf(t.x),a=_.valueOf(t.y),u=_.valueOf(e.x),l=_.valueOf(e.y),h=_.valueOf(n.x),c=_.valueOf(n.y),f=o.multiply(o).add(a.multiply(a)).multiply(Rs.triAreaDDSlow(u,l,h,c,r,s)),g=u.multiply(u).add(l.multiply(l)).multiply(Rs.triAreaDDSlow(o,a,h,c,r,s)),d=h.multiply(h).add(c.multiply(c)).multiply(Rs.triAreaDDSlow(o,a,u,l,r,s)),p=r.multiply(r).add(s.multiply(s)).multiply(Rs.triAreaDDSlow(o,a,u,l,h,c)),v=f.subtract(g).add(d).subtract(p),m=v.doubleValue()>0;return m},Rs.isInCircleNonRobust=function(t,e,n,i){var r=(t.x*t.x+t.y*t.y)*Rs.triArea(e,n,i)-(e.x*e.x+e.y*e.y)*Rs.triArea(t,n,i)+(n.x*n.x+n.y*n.y)*Rs.triArea(t,e,i)-(i.x*i.x+i.y*i.y)*Rs.triArea(t,e,n)>0;return r},Rs.isInCircleRobust=function(t,e,n,i){return Rs.isInCircleNormalized(t,e,n,i)},Rs.triAreaDDSlow=function(t,e,n,i,r,s){return n.subtract(t).multiply(s.subtract(e)).subtract(i.subtract(e).multiply(r.subtract(t)))},Rs.triAreaDDFast=function(t,e,n){var i=_.valueOf(e.x).selfSubtract(t.x).selfMultiply(_.valueOf(n.y).selfSubtract(t.y)),r=_.valueOf(e.y).selfSubtract(t.y).selfMultiply(_.valueOf(n.x).selfSubtract(t.x));return i.selfSubtract(r)},e(Ts.prototype,{circleCenter:function(t,e){var n=new Ts(this.getX(),this.getY()),i=this.bisector(n,t),r=this.bisector(t,e),s=new F(i,r),o=null;try{o=new Ts(s.getX(),s.getY())}catch(i){if(!(i instanceof w))throw i;A.err.println("a: "+n+" b: "+t+" c: "+e),A.err.println(i)}finally{}return o},dot:function(t){return this.p.x*t.getX()+this.p.y*t.getY()},magn:function(){return Math.sqrt(this.p.x*this.p.x+this.p.y*this.p.y)},getZ:function(){return this.p.z},bisector:function(t,e){var n=e.getX()-t.getX(),i=e.getY()-t.getY(),r=new F(t.getX()+n/2,t.getY()+i/2,1),s=new F(t.getX()-i+n/2,t.getY()+n+i/2,1);return new F(r,s)},equals:function(){if(1===arguments.length){var t=arguments[0];return this.p.x===t.getX()&&this.p.y===t.getY()}if(2===arguments.length){var e=arguments[0],n=arguments[1];return this.p.distance(e.getCoordinate())<n}},getCoordinate:function(){return this.p},isInCircle:function(t,e,n){return Rs.isInCircleRobust(t.p,e.p,n.p,this.p)},interpolateZValue:function(t,e,n){var i=t.getX(),r=t.getY(),s=e.getX()-i,o=n.getX()-i,a=e.getY()-r,u=n.getY()-r,l=s*u-o*a,h=this.getX()-i,c=this.getY()-r,f=(u*h-o*c)/l,g=(-a*h+s*c)/l,d=t.getZ()+f*(e.getZ()-t.getZ())+g*(n.getZ()-t.getZ());return d},midPoint:function(t){var e=(this.p.x+t.getX())/2,n=(this.p.y+t.getY())/2,i=(this.p.z+t.getZ())/2;return new Ts(e,n,i)},rightOf:function(t){return this.isCCW(t.dest(),t.orig())},isCCW:function(t,e){return(t.p.x-this.p.x)*(e.p.y-this.p.y)-(t.p.y-this.p.y)*(e.p.x-this.p.x)>0},getX:function(){return this.p.x},crossProduct:function(t){return this.p.x*t.getY()-this.p.y*t.getX()},setZ:function(t){this.p.z=t},times:function(t){return new Ts(t*this.p.x,t*this.p.y)},cross:function(){return new Ts(this.p.y,(-this.p.x))},leftOf:function(t){return this.isCCW(t.orig(),t.dest())},toString:function(){return"POINT ("+this.p.x+" "+this.p.y+")"},sub:function(t){return new Ts(this.p.x-t.getX(),this.p.y-t.getY())},getY:function(){return this.p.y},classify:function(t,e){var n=this,i=e.sub(t),r=n.sub(t),s=i.crossProduct(r);return s>0?Ts.LEFT:s<0?Ts.RIGHT:i.getX()*r.getX()<0||i.getY()*r.getY()<0?Ts.BEHIND:i.magn()<r.magn()?Ts.BEYOND:t.equals(n)?Ts.ORIGIN:e.equals(n)?Ts.DESTINATION:Ts.BETWEEN},sum:function(t){return new Ts(this.p.x+t.getX(),this.p.y+t.getY())},distance:function(t,e){return Math.sqrt(Math.pow(e.getX()-t.getX(),2)+Math.pow(e.getY()-t.getY(),2))},circumRadiusRatio:function(t,e){var n=this.circleCenter(t,e),i=this.distance(n,t),r=this.distance(this,t),s=this.distance(t,e);return s<r&&(r=s),s=this.distance(e,this),s<r&&(r=s),i/r},interfaces_:function(){return[]},getClass:function(){return Ts}}),Ts.interpolateZ=function(){if(3===arguments.length){var t=arguments[0],e=arguments[1],n=arguments[2],i=e.distance(n),r=t.distance(e),s=n.z-e.z,o=e.z+s*(r/i);return o}if(4===arguments.length){var a=arguments[0],u=arguments[1],l=arguments[2],h=arguments[3],c=u.x,f=u.y,g=l.x-c,d=h.x-c,p=l.y-f,v=h.y-f,m=g*v-d*p,y=a.x-c,x=a.y-f,E=(v*y-d*x)/m,I=(-p*y+g*x)/m,N=u.z+E*(l.z-u.z)+I*(h.z-u.z);return N}},Ts.LEFT=0,Ts.RIGHT=1,Ts.BEYOND=2,Ts.BEHIND=3,Ts.BETWEEN=4,Ts.ORIGIN=5,Ts.DESTINATION=6,h(Ps,Ts),e(Ps.prototype,{getConstraint:function(){return this.constraint},setOnConstraint:function(t){this._isOnConstraint=t},merge:function(t){t._isOnConstraint&&(this._isOnConstraint=!0,this.constraint=t.constraint)},isOnConstraint:function(){return this._isOnConstraint},setConstraint:function(t){this._isOnConstraint=!0,this.constraint=t},interfaces_:function(){return[]},getClass:function(){return Ps}}),e(bs.prototype,{equalsNonOriented:function(t){return!!this.equalsOriented(t)||!!this.equalsOriented(t.sym())},toLineSegment:function(){return new ce(this.vertex.getCoordinate(),this.dest().getCoordinate())},dest:function(){return this.sym().orig()},oNext:function(){return this.next},equalsOriented:function(t){return!(!this.orig().getCoordinate().equals2D(t.orig().getCoordinate())||!this.dest().getCoordinate().equals2D(t.dest().getCoordinate()))},dNext:function(){return this.sym().oNext().sym()},lPrev:function(){return this.next.sym()},rPrev:function(){return this.sym().oNext()},rot:function(){return this._rot},oPrev:function(){return this._rot.next._rot},sym:function(){return this._rot._rot},setOrig:function(t){this.vertex=t},lNext:function(){return this.invRot().oNext().rot()},getLength:function(){return this.orig().getCoordinate().distance(this.dest().getCoordinate())},invRot:function(){return this._rot.sym()},setDest:function(t){this.sym().setOrig(t)},setData:function(t){this.data=t},getData:function(){return this.data},delete:function(){this._rot=null},orig:function(){return this.vertex},rNext:function(){return this._rot.next.invRot()},toString:function(){var t=this.vertex.getCoordinate(),e=this.dest().getCoordinate();return se.toLineString(t,e)},isLive:function(){return null!==this._rot},getPrimary:function(){return this.orig().getCoordinate().compareTo(this.dest().getCoordinate())<=0?this:this.sym()},dPrev:function(){return this.invRot().oNext().invRot()},setNext:function(t){this.next=t},interfaces_:function(){return[]},getClass:function(){return bs}}),bs.makeEdge=function(t,e){var n=new bs,i=new bs,r=new bs,s=new bs;n._rot=i,i._rot=r,r._rot=s,s._rot=n,n.setNext(n),i.setNext(s),r.setNext(r),s.setNext(i);var o=n;return o.setOrig(t),o.setDest(e),o},bs.swap=function(t){var e=t.oPrev(),n=t.sym().oPrev();bs.splice(t,e),bs.splice(t.sym(),n),bs.splice(t,e.lNext()),bs.splice(t.sym(),n.lNext()),t.setOrig(e.dest()),t.setDest(n.dest())},bs.splice=function(t,e){var n=t.oNext().rot(),i=e.oNext().rot(),r=e.oNext(),s=t.oNext(),o=i.oNext(),a=n.oNext();t.setNext(r),e.setNext(s),n.setNext(o),i.setNext(a)},bs.connect=function(t,e){var n=bs.makeEdge(t.dest(),e.orig());return bs.splice(n,t.lNext()),bs.splice(n.sym(),e),n},e(Os.prototype,{insertSite:function(t){var e=this.subdiv.locate(t);if(this.subdiv.isVertexOfEdge(e,t))return e;this.subdiv.isOnEdge(e,t.getCoordinate())&&(e=e.oPrev(),this.subdiv.delete(e.oNext()));var n=this.subdiv.makeEdge(e.orig(),t);bs.splice(n,e);var i=n;do n=this.subdiv.connect(e,n.sym()),e=n.oPrev();while(e.lNext()!==i);for(;;){var r=e.oPrev();if(r.dest().rightOf(e)&&t.isInCircle(e.orig(),r.dest(),e.dest()))bs.swap(e),e=e.oPrev();else{if(e.oNext()===i)return n;e=e.oNext().lPrev()}}},insertSites:function(t){for(var e=t.iterator();e.hasNext();){var n=e.next();this.insertSite(n)}},interfaces_:function(){return[]},getClass:function(){return Os}}),e(_s.prototype,{locate:function(t){},interfaces_:function(){return[]},getClass:function(){return _s}}),e(Ms.prototype,{init:function(){this.lastEdge=this.findEdge()},locate:function(t){this.lastEdge.isLive()||this.init();var e=this.subdiv.locateFromEdge(t,this.lastEdge);return this.lastEdge=e,e},findEdge:function(){var t=this.subdiv.getEdges();return t.iterator().next()},interfaces_:function(){return[_s]},getClass:function(){return Ms}}),h(Ds,l),e(Ds.prototype,{getSegment:function(){return this.seg},interfaces_:function(){return[]},getClass:function(){return Ds}}),Ds.msgWithSpatial=function(t,e){return null!==e?t+" [ "+e+" ]":t},e(As.prototype,{visit:function(t){},interfaces_:function(){return[]},getClass:function(){return As}}),e(Fs.prototype,{getTriangleVertices:function(t){var e=new Bs;return this.visitTriangles(e,t),e.getTriangleVertices()},isFrameVertex:function(t){return!!t.equals(this.frameVertex[0])||(!!t.equals(this.frameVertex[1])||!!t.equals(this.frameVertex[2]))},isVertexOfEdge:function(t,e){return!(!e.equals(t.orig(),this.tolerance)&&!e.equals(t.dest(),this.tolerance))},connect:function(t,e){var n=bs.connect(t,e);return this.quadEdges.add(n),n},getVoronoiCellPolygon:function(t,e){var n=new I,i=t;do{var r=t.rot().orig().getCoordinate();n.add(r),t=t.oPrev()}while(t!==i);var s=new N;s.addAll(n,!1),s.closeRing(),s.size()<4&&(A.out.println(s),s.add(s.get(s.size()-1),!0));var o=s.toCoordinateArray(),a=e.createPolygon(e.createLinearRing(o),null),u=i.orig();return a.setUserData(u.getCoordinate()),a},setLocator:function(t){this.locator=t},initSubdiv:function(){var t=this.makeEdge(this.frameVertex[0],this.frameVertex[1]),e=this.makeEdge(this.frameVertex[1],this.frameVertex[2]);bs.splice(t.sym(),e);var n=this.makeEdge(this.frameVertex[2],this.frameVertex[0]);return bs.splice(e.sym(),n),bs.splice(n.sym(),t),t},isFrameBorderEdge:function(t){var e=new Array(3).fill(null);Fs.getTriangleEdges(t,e);var n=new Array(3).fill(null);Fs.getTriangleEdges(t.sym(),n);var i=t.lNext().dest();if(this.isFrameVertex(i))return!0;var r=t.sym().lNext().dest();return!!this.isFrameVertex(r)},makeEdge:function(t,e){var n=bs.makeEdge(t,e);return this.quadEdges.add(n),n},visitTriangles:function(t,e){this.visitedKey++;var n=new pe;n.push(this.startingEdge);for(var i=new J;!n.empty();){var r=n.pop();if(!i.contains(r)){var s=this.fetchTriangleToVisit(r,n,e,i);null!==s&&t.visit(s)}}},isFrameEdge:function(t){return!(!this.isFrameVertex(t.orig())&&!this.isFrameVertex(t.dest()))},isOnEdge:function(t,e){this.seg.setCoordinates(t.orig().getCoordinate(),t.dest().getCoordinate());var n=this.seg.distance(e);return n<this.edgeCoincidenceTolerance},getEnvelope:function(){return new C(this.frameEnv)},createFrame:function(t){var e=t.getWidth(),n=t.getHeight(),i=0;i=e>n?10*e:10*n,this.frameVertex[0]=new Ts((t.getMaxX()+t.getMinX())/2,t.getMaxY()+i),this.frameVertex[1]=new Ts(t.getMinX()-i,t.getMinY()-i),this.frameVertex[2]=new Ts(t.getMaxX()+i,t.getMinY()-i),this.frameEnv=new C(this.frameVertex[0].getCoordinate(),this.frameVertex[1].getCoordinate()),this.frameEnv.expandToInclude(this.frameVertex[2].getCoordinate())},getTriangleCoordinates:function(t){var e=new zs;return this.visitTriangles(e,t),e.getTriangles()},getVertices:function(t){for(var e=new J,n=this.quadEdges.iterator();n.hasNext();){var i=n.next(),r=i.orig();!t&&this.isFrameVertex(r)||e.add(r);var s=i.dest();!t&&this.isFrameVertex(s)||e.add(s)}return e},fetchTriangleToVisit:function(t,e,n,i){var r=t,s=0,o=!1;do{this.triEdges[s]=r,this.isFrameEdge(r)&&(o=!0);var a=r.sym();i.contains(a)||e.push(a),i.add(r),s++,r=r.lNext()}while(r!==t);return o&&!n?null:this.triEdges},getEdges:function(){if(0===arguments.length)return this.quadEdges;if(1===arguments.length){for(var t=arguments[0],e=this.getPrimaryEdges(!1),n=new Array(e.size()).fill(null),i=0,r=e.iterator();r.hasNext();){var s=r.next();n[i++]=t.createLineString([s.orig().getCoordinate(),s.dest().getCoordinate()])}return t.createMultiLineString(n)}},getVertexUniqueEdges:function(t){for(var e=new I,n=new J,i=this.quadEdges.iterator();i.hasNext();){var r=i.next(),s=r.orig();n.contains(s)||(n.add(s),!t&&this.isFrameVertex(s)||e.add(r));var o=r.sym(),a=o.orig();n.contains(a)||(n.add(a),!t&&this.isFrameVertex(a)||e.add(o))}return e},getTriangleEdges:function(t){var e=new qs;return this.visitTriangles(e,t),e.getTriangleEdges()},getPrimaryEdges:function(t){this.visitedKey++;var e=new I,n=new pe;n.push(this.startingEdge);for(var i=new J;!n.empty();){var r=n.pop();if(!i.contains(r)){var s=r.getPrimary();!t&&this.isFrameEdge(s)||e.add(s),n.push(r.oNext()),n.push(r.sym().oNext()),i.add(r),i.add(r.sym())}}return e},delete:function(t){bs.splice(t,t.oPrev()),bs.splice(t.sym(),t.sym().oPrev());var e=t.sym(),n=t.rot(),i=t.rot().sym();this.quadEdges.remove(t),this.quadEdges.remove(e),this.quadEdges.remove(n),this.quadEdges.remove(i),t.delete(),e.delete(),n.delete(),i.delete()},locateFromEdge:function(t,e){for(var n=0,i=this.quadEdges.size(),r=e;;){if(n++,n>i)throw new Ds(r.toLineSegment());if(t.equals(r.orig())||t.equals(r.dest()))break;if(t.rightOf(r))r=r.sym();else if(t.rightOf(r.oNext())){if(t.rightOf(r.dPrev()))break;r=r.dPrev()}else r=r.oNext()}return r},getTolerance:function(){return this.tolerance},getVoronoiCellPolygons:function(t){this.visitTriangles(new Gs,!0);for(var e=new I,n=this.getVertexUniqueEdges(!1),i=n.iterator();i.hasNext();){var r=i.next();e.add(this.getVoronoiCellPolygon(r,t))}return e},getVoronoiDiagram:function(t){var e=this.getVoronoiCellPolygons(t);return t.createGeometryCollection(ie.toGeometryArray(e))},getTriangles:function(t){for(var e=this.getTriangleCoordinates(!1),n=new Array(e.size()).fill(null),i=0,r=e.iterator();r.hasNext();){var s=r.next();n[i++]=t.createPolygon(t.createLinearRing(s),null)}return t.createGeometryCollection(n)},insertSite:function(t){var e=this.locate(t);if(t.equals(e.orig(),this.tolerance)||t.equals(e.dest(),this.tolerance))return e;var n=this.makeEdge(e.orig(),t);bs.splice(n,e);var i=n;do n=this.connect(e,n.sym()),e=n.oPrev();while(e.lNext()!==i);return i},locate:function(){if(1===arguments.length){if(arguments[0]instanceof Ts){var t=arguments[0];return this.locator.locate(t)}if(arguments[0]instanceof g){var e=arguments[0];return this.locator.locate(new Ts(e))}}else if(2===arguments.length){var n=arguments[0],i=arguments[1],r=this.locator.locate(new Ts(n));if(null===r)return null;var s=r;r.dest().getCoordinate().equals2D(n)&&(s=r.sym());var o=s;do{if(o.dest().getCoordinate().equals2D(i))return o;o=o.oNext()}while(o!==s);return null}},interfaces_:function(){return[]},getClass:function(){return Fs}}),Fs.getTriangleEdges=function(t,e){if(e[0]=t,e[1]=e[0].lNext(),e[2]=e[1].lNext(),e[2].lNext()!==e[0])throw new i("Edges do not form a triangle")},e(Gs.prototype,{visit:function(t){for(var e=t[0].orig().getCoordinate(),n=t[1].orig().getCoordinate(),i=t[2].orig().getCoordinate(),r=Si.circumcentre(e,n,i),s=new Ts(r),o=0;o<3;o++)t[o].rot().setOrig(s)},interfaces_:function(){return[As]},getClass:function(){return Gs}}),e(qs.prototype,{getTriangleEdges:function(){return this.triList},visit:function(t){this.triList.add(t.clone())},interfaces_:function(){return[As]},getClass:function(){return qs}}),e(Bs.prototype,{visit:function(t){this.triList.add([t[0].orig(),t[1].orig(),t[2].orig()])},getTriangleVertices:function(){return this.triList},interfaces_:function(){return[As]},getClass:function(){return Bs}}),e(zs.prototype,{checkTriangleSize:function(t){var e="";t.length>=2?e=se.toLineString(t[0],t[1]):t.length>=1&&(e=se.toPoint(t[0]))},visit:function(t){this.coordList.clear();for(var e=0;e<3;e++){var n=t[e].orig();this.coordList.add(n.getCoordinate())}if(this.coordList.size()>0){this.coordList.closeRing();var i=this.coordList.toCoordinateArray();if(4!==i.length)return null;this.triCoords.add(i)}},getTriangles:function(){return this.triCoords},interfaces_:function(){return[As]},getClass:function(){return zs}}),Fs.TriangleCircumcentreVisitor=Gs,Fs.TriangleEdgesListVisitor=qs,Fs.TriangleVertexListVisitor=Bs,Fs.TriangleCoordinatesVisitor=zs,Fs.EDGE_COINCIDENCE_TOL_FACTOR=1e3,e(Vs.prototype,{getLineSegment:function(){return this.ls},getEndZ:function(){var t=this.ls.getCoordinate(1);return t.z},getStartZ:function(){var t=this.ls.getCoordinate(0);return t.z},intersection:function(t){return this.ls.intersection(t.getLineSegment())},getStart:function(){return this.ls.getCoordinate(0)},getEnd:function(){return this.ls.getCoordinate(1)},getEndY:function(){var t=this.ls.getCoordinate(1);return t.y},getStartX:function(){var t=this.ls.getCoordinate(0);return t.x},equalsTopo:function(t){return this.ls.equalsTopo(t.getLineSegment())},getStartY:function(){var t=this.ls.getCoordinate(0);return t.y},setData:function(t){this.data=t},getData:function(){return this.data},getEndX:function(){var t=this.ls.getCoordinate(1);return t.x},toString:function(){return this.ls.toString()},interfaces_:function(){return[]},getClass:function(){return Vs}}),e(ks.prototype,{visit:function(t){},interfaces_:function(){return[]},getClass:function(){return ks}}),e(Ys.prototype,{isRepeated:function(){return this.count>1},getRight:function(){return this.right},getCoordinate:function(){return this.p},setLeft:function(t){this.left=t},getX:function(){return this.p.x},getData:function(){return this.data},getCount:function(){return this.count},getLeft:function(){return this.left},getY:function(){return this.p.y},increment:function(){this.count=this.count+1},setRight:function(t){this.right=t},interfaces_:function(){return[]},getClass:function(){return Ys}}),e(Us.prototype,{insert:function(){if(1===arguments.length){var t=arguments[0];return this.insert(t,null)}if(2===arguments.length){var e=arguments[0],n=arguments[1];if(null===this.root)return this.root=new Ys(e,n),this.root;if(this.tolerance>0){var i=this.findBestMatchNode(e);if(null!==i)return i.increment(),i}return this.insertExact(e,n)}},query:function(){var t=arguments,e=this;if(1===arguments.length){var n=arguments[0],i=new I;return this.query(n,i),i}if(2===arguments.length)if(arguments[0]instanceof C&&R(arguments[1],y))!function(){var n=t[0],i=t[1];e.queryNode(e.root,n,!0,{interfaces_:function(){return[ks]},visit:function(t){i.add(t)}})}();else if(arguments[0]instanceof C&&R(arguments[1],ks)){var r=arguments[0],s=arguments[1];this.queryNode(this.root,r,!0,s)}},queryNode:function(t,e,n,i){if(null===t)return null;var r=null,s=null,o=null;n?(r=e.getMinX(),s=e.getMaxX(),o=t.getX()):(r=e.getMinY(),s=e.getMaxY(),o=t.getY());var a=r<o,u=o<=s;a&&this.queryNode(t.getLeft(),e,!n,i),e.contains(t.getCoordinate())&&i.visit(t),u&&this.queryNode(t.getRight(),e,!n,i)},findBestMatchNode:function(t){var e=new Xs(t,this.tolerance);return this.query(e.queryEnvelope(),e),e.getNode()},isEmpty:function(){return null===this.root},insertExact:function(t,e){for(var n=this.root,i=this.root,r=!0,s=!0;null!==n;){if(null!==n){var o=t.distance(n.getCoordinate())<=this.tolerance;if(o)return n.increment(),n}s=r?t.x<n.getX():t.y<n.getY(),i=n,n=s?n.getLeft():n.getRight(),r=!r}this.numberOfNodes=this.numberOfNodes+1;var a=new Ys(t,e);return s?i.setLeft(a):i.setRight(a),a},interfaces_:function(){return[]},getClass:function(){return Us}}),Us.toCoordinates=function(){if(1===arguments.length){var t=arguments[0];return Us.toCoordinates(t,!1)}if(2===arguments.length){for(var e=arguments[0],n=arguments[1],i=new N,r=e.iterator();r.hasNext();)for(var s=r.next(),o=n?s.getCount():1,a=0;a<o;a++)i.add(s.getCoordinate(),!0);return i.toCoordinateArray()}},e(Xs.prototype,{visit:function(t){var e=this.p.distance(t.getCoordinate()),n=e<=this.tolerance;if(!n)return null;var i=!1;(null===this.matchNode||e<this.matchDist||null!==this.matchNode&&e===this.matchDist&&t.getCoordinate().compareTo(this.matchNode.getCoordinate())<1)&&(i=!0),i&&(this.matchNode=t,this.matchDist=e)},queryEnvelope:function(){var t=new C(this.p);return t.expandBy(this.tolerance),t},getNode:function(){return this.matchNode},interfaces_:function(){return[ks]},getClass:function(){return Xs}}),Us.BestMatchVisitor=Xs,e(Hs.prototype,{getInitialVertices:function(){return this.initialVertices},getKDT:function(){return this.kdt},enforceConstraints:function(){this.addConstraintVertices();var t=0,e=0;do e=this.enforceGabriel(this.segments),t++;while(e>0&&t<Hs.MAX_SPLIT_ITER)},insertSites:function(t){for(var e=t.iterator();e.hasNext();){var n=e.next();this.insertSite(n)}},getVertexFactory:function(){return this.vertexFactory},getPointArray:function(){for(var t=new Array(this.initialVertices.size()+this.segVertices.size()).fill(null),e=0,n=this.initialVertices.iterator();n.hasNext();){var i=n.next();t[e++]=i.getCoordinate()}for(var r=this.segVertices.iterator();r.hasNext();){var i=r.next();t[e++]=i.getCoordinate()}return t},setConstraints:function(t,e){this.segments=t,this.segVertices=e},computeConvexHull:function(){var t=new ie,e=this.getPointArray(),n=new me(e,t);this.convexHull=n.getConvexHull()},addConstraintVertices:function(){this.computeConvexHull(),this.insertSites(this.segVertices)},findNonGabrielPoint:function(t){var e=t.getStart(),n=t.getEnd(),i=new g((e.x+n.x)/2,(e.y+n.y)/2),s=e.distance(i),o=new C(i);o.expandBy(s);for(var a=this.kdt.query(o),u=null,l=r.MAX_VALUE,h=a.iterator();h.hasNext();){var c=h.next(),f=c.getCoordinate();if(!f.equals2D(e)&&!f.equals2D(n)){var d=i.distance(f);if(d<s){var p=d;(null===u||p<l)&&(u=f,l=p)}}}return u},getConstraintSegments:function(){return this.segments},setSplitPointFinder:function(t){this.splitFinder=t},getConvexHull:function(){return this.convexHull},getTolerance:function(){return this.tolerance},enforceGabriel:function(t){for(var e=new I,n=0,i=new I,r=t.iterator();r.hasNext();){var s=r.next(),o=this.findNonGabrielPoint(s);if(null!==o){this.splitPt=this.splitFinder.findSplitPoint(s,o);var a=this.createVertex(this.splitPt,s),u=(this.insertSite(a),new Vs(s.getStartX(),s.getStartY(),s.getStartZ(),a.getX(),a.getY(),a.getZ(),s.getData())),l=new Vs(a.getX(),a.getY(),a.getZ(),s.getEndX(),s.getEndY(),s.getEndZ(),s.getData());e.add(u),e.add(l),i.add(s),n+=1}}return t.removeAll(i),t.addAll(e),n},createVertex:function(){if(1===arguments.length){var t=arguments[0],e=null;return e=null!==this.vertexFactory?this.vertexFactory.createVertex(t,null):new Ps(t)}if(2===arguments.length){var n=arguments[0],i=arguments[1],e=null;return e=null!==this.vertexFactory?this.vertexFactory.createVertex(n,i):new Ps(n),e.setOnConstraint(!0),e}},getSubdivision:function(){return this.subdiv},computeBoundingBox:function(){var t=Hs.computeVertexEnvelope(this.initialVertices),e=Hs.computeVertexEnvelope(this.segVertices),n=new C(t);n.expandToInclude(e);var i=.2*n.getWidth(),r=.2*n.getHeight(),s=Math.max(i,r);this.computeAreaEnv=new C(n),this.computeAreaEnv.expandBy(s)},setVertexFactory:function(t){this.vertexFactory=t},formInitialDelaunay:function(){this.computeBoundingBox(),this.subdiv=new Fs(this.computeAreaEnv,this.tolerance),this.subdiv.setLocator(new Ms(this.subdiv)),this.incDel=new Os(this.subdiv),this.insertSites(this.initialVertices)},insertSite:function(){if(arguments[0]instanceof Ps){var t=arguments[0],e=this.kdt.insert(t.getCoordinate(),t);if(e.isRepeated()){var n=e.getData();return n.merge(t),n}return this.incDel.insertSite(t),t}if(arguments[0]instanceof g){var i=arguments[0];this.insertSite(this.createVertex(i))}},interfaces_:function(){return[]},getClass:function(){return Hs}}),Hs.computeVertexEnvelope=function(t){for(var e=new C,n=t.iterator();n.hasNext();){var i=n.next();e.expandToInclude(i.getCoordinate())}return e},Hs.MAX_SPLIT_ITER=99,e(Ws.prototype,{create:function(){if(null!==this.subdiv)return null;var t=Ws.envelope(this.siteCoords),e=Ws.toVertices(this.siteCoords);this.subdiv=new Fs(t,this.tolerance);var n=new Os(this.subdiv);n.insertSites(e)},setTolerance:function(t){this.tolerance=t},setSites:function(){if(arguments[0]instanceof B){var t=arguments[0];this.siteCoords=Ws.extractUniqueCoordinates(t)}else if(R(arguments[0],v)){var e=arguments[0];this.siteCoords=Ws.unique(H.toCoordinateArray(e))}},getEdges:function(t){return this.create(),this.subdiv.getEdges(t)},getSubdivision:function(){return this.create(),this.subdiv},getTriangles:function(t){return this.create(),this.subdiv.getTriangles(t)},interfaces_:function(){return[]},getClass:function(){return Ws}}),Ws.extractUniqueCoordinates=function(t){if(null===t)return new N;var e=t.getCoordinates();return Ws.unique(e)},Ws.envelope=function(t){for(var e=new C,n=t.iterator();n.hasNext();){var i=n.next();e.expandToInclude(i)}return e},Ws.unique=function(t){var e=H.copyDeep(t);ut.sort(e);var n=new N(e,(!1));return n},Ws.toVertices=function(t){for(var e=new I,n=t.iterator();n.hasNext();){var i=n.next();e.add(new Ts(i))}return e},e(js.prototype,{createSiteVertices:function(t){for(var e=new I,n=t.iterator();n.hasNext();){var i=n.next();this.constraintVertexMap.containsKey(i)||e.add(new Ps(i))}return e},create:function(){if(null!==this.subdiv)return null;var t=Ws.envelope(this.siteCoords),e=new I;null!==this.constraintLines&&(t.expandToInclude(this.constraintLines.getEnvelopeInternal()),this.createVertices(this.constraintLines),e=js.createConstraintSegments(this.constraintLines));var n=this.createSiteVertices(this.siteCoords),i=new Hs(n,this.tolerance);i.setConstraints(e,new I(this.constraintVertexMap.values())),i.formInitialDelaunay(),i.enforceConstraints(),this.subdiv=i.getSubdivision()},setTolerance:function(t){this.tolerance=t},setConstraints:function(t){this.constraintLines=t},setSites:function(t){this.siteCoords=Ws.extractUniqueCoordinates(t)},getEdges:function(t){return this.create(),this.subdiv.getEdges(t)},getSubdivision:function(){return this.create(),this.subdiv},getTriangles:function(t){return this.create(),this.subdiv.getTriangles(t)},createVertices:function(t){for(var e=t.getCoordinates(),n=0;n<e.length;n++){var i=new Ps(e[n]);this.constraintVertexMap.put(e[n],i)}},interfaces_:function(){return[]},getClass:function(){return js}}),js.createConstraintSegments=function(){if(1===arguments.length){for(var t=arguments[0],e=kn.getLines(t),n=new I,i=e.iterator();i.hasNext();){var r=i.next();js.createConstraintSegments(r,n)}return n}if(2===arguments.length)for(var s=arguments[0],o=arguments[1],a=s.getCoordinates(),i=1;i<a.length;i++)o.add(new Vs(a[i-1],a[i]))},e(Ks.prototype,{create:function(){if(null!==this.subdiv)return null;var t=Ws.envelope(this.siteCoords);this.diagramEnv=t;var e=Math.max(this.diagramEnv.getWidth(),this.diagramEnv.getHeight());this.diagramEnv.expandBy(e),null!==this.clipEnv&&this.diagramEnv.expandToInclude(this.clipEnv);var n=Ws.toVertices(this.siteCoords);this.subdiv=new Fs(t,this.tolerance);var i=new Os(this.subdiv);i.insertSites(n)},getDiagram:function(t){this.create();var e=this.subdiv.getVoronoiDiagram(t);return Ks.clipGeometryCollection(e,this.diagramEnv)},setTolerance:function(t){this.tolerance=t},setSites:function(){if(arguments[0]instanceof B){var t=arguments[0];this.siteCoords=Ws.extractUniqueCoordinates(t)}else if(R(arguments[0],v)){var e=arguments[0];this.siteCoords=Ws.unique(H.toCoordinateArray(e))}},setClipEnvelope:function(t){this.clipEnv=t},getSubdivision:function(){return this.create(),this.subdiv},interfaces_:function(){return[]},getClass:function(){return Ks}}),Ks.clipGeometryCollection=function(t,e){for(var n=t.getFactory().toGeometry(e),i=new I,r=0;r<t.getNumGeometries();r++){var s=t.getGeometryN(r),o=null;e.contains(s.getEnvelopeInternal())?o=s:e.intersects(s.getEnvelopeInternal())&&(o=n.intersection(s),o.setUserData(s.getUserData())),null===o||o.isEmpty()||i.add(o)}return t.getFactory().createGeometryCollection(ie.toGeometryArray(i))};var Ao=Object.freeze({Vertex:Ts}),Fo=Object.freeze({ConformingDelaunayTriangulationBuilder:js,DelaunayTriangulationBuilder:Ws,VoronoiDiagramBuilder:Ks,quadedge:Ao});e(Zs.prototype,{interfaces_:function(){return[]},getClass:function(){return Zs}}),Zs.union=function(t,e){if(t.isEmpty()||e.isEmpty()){if(t.isEmpty()&&e.isEmpty())return ii.createEmptyResult(ii.UNION,t,e,t.getFactory());if(t.isEmpty())return e.copy();if(e.isEmpty())return t.copy()}return t.checkNotGeometryCollection(t),t.checkNotGeometryCollection(e),si.overlayOp(t,e,ii.UNION)},e(B.prototype,{equalsTopo:function(t){return!!this.getEnvelopeInternal().equals(t.getEnvelopeInternal())&&rs.relate(this,t).isEquals(this.getDimension(),t.getDimension())},union:function(){if(0===arguments.length)return ls.union(this);if(1===arguments.length){var t=arguments[0];return Zs.union(this,t)}},isValid:function(){return Ur.isValid(this)},intersection:function(t){if(this.isEmpty()||t.isEmpty())return ii.createEmptyResult(ii.INTERSECTION,this,t,this.factory);if(this.isGeometryCollection()){var e=t;return hn.map(this,{interfaces_:function(){return[MapOp]},map:function(t){return t.intersection(e)}})}return this.checkNotGeometryCollection(this),this.checkNotGeometryCollection(t),si.overlayOp(this,t,ii.INTERSECTION)},covers:function(t){return rs.covers(this,t)},coveredBy:function(t){return rs.coveredBy(this,t)},touches:function(t){return rs.touches(this,t)},intersects:function(t){return rs.intersects(this,t)},within:function(t){return rs.within(this,t)},overlaps:function(t){return rs.overlaps(this,t)},disjoint:function(t){return rs.disjoint(this,t)},crosses:function(t){return rs.crosses(this,t)},buffer:function(){if(1===arguments.length){var t=arguments[0];return dr.bufferOp(this,t)}if(2===arguments.length){var e=arguments[0],n=arguments[1];return dr.bufferOp(this,e,n)}if(3===arguments.length){var i=arguments[0],r=arguments[1],s=arguments[2];return dr.bufferOp(this,i,r,s)}},convexHull:function(){return new me(this).getConvexHull()},relate:function(){for(var t=arguments.length,e=Array(t),n=0;n<t;n++)e[n]=arguments[n];return rs.relate.apply(rs,[this].concat(e))},getCentroid:function(){if(this.isEmpty())return this.factory.createPoint();var t=ge.getCentroid(this);return this.createPointFromInternalCoord(t,this)},getInteriorPoint:function(){if(this.isEmpty())return this.factory.createPoint();var t=null,e=this.getDimension();if(0===e){var n=new li(this);t=n.getInteriorPoint()}else if(1===e){var n=new ui(this);t=n.getInteriorPoint()}else{var n=new oi(this);t=n.getInteriorPoint()}return this.createPointFromInternalCoord(t,this)},symDifference:function(t){if(this.isEmpty()||t.isEmpty()){if(this.isEmpty()&&t.isEmpty())return ii.createEmptyResult(ii.SYMDIFFERENCE,this,t,this.factory);if(this.isEmpty())return t.copy();if(t.isEmpty())return this.copy()}return this.checkNotGeometryCollection(this),this.checkNotGeometryCollection(t),si.overlayOp(this,t,ii.SYMDIFFERENCE)},createPointFromInternalCoord:function(t,e){return e.getPrecisionModel().makePrecise(t),e.getFactory().createPoint(t)},toText:function(){var t=new se;return t.write(this)},toString:function(){this.toText()},contains:function(t){return rs.contains(this,t)},difference:function(t){return this.isEmpty()?ii.createEmptyResult(ii.DIFFERENCE,this,t,this.factory):t.isEmpty()?this.copy():(this.checkNotGeometryCollection(this),this.checkNotGeometryCollection(t),si.overlayOp(this,t,ii.DIFFERENCE))},isSimple:function(){var t=new Wi(this);return t.isSimple()},isWithinDistance:function(t,e){var n=this.getEnvelopeInternal().distance(t.getEnvelopeInternal());return!(n>e)&&xr.isWithinDistance(this,t,e)},distance:function(t){return xr.distance(this,t)},isEquivalentClass:function(t){return this.getClass()===t.getClass()}});var Go="1.3.0 (6e65adb)";t.version=Go,t.algorithm=co,t.densify=fo,t.dissolve=go,t.geom=lo,t.geomgraph=po,t.index=yo,t.io=No,t.noding=Co,t.operation=_o,t.precision=Mo,t.simplify=Do,t.triangulate=Fo,Object.defineProperty(t,"__esModule",{value:!0})});
},{}],44:[function(require,module,exports){
'use strict';
module.exports = lineclip;
lineclip.polyline = lineclip;
lineclip.polygon = polygonclip;
// Cohen-Sutherland line clippign algorithm, adapted to efficiently
// handle polylines rather than just segments
function lineclip(points, bbox, result) {
var len = points.length,
codeA = bitCode(points[0], bbox),
part = [],
i, a, b, codeB, lastCode;
if (!result) result = [];
for (i = 1; i < len; i++) {
a = points[i - 1];
b = points[i];
codeB = lastCode = bitCode(b, bbox);
while (true) {
if (!(codeA | codeB)) { // accept
part.push(a);
if (codeB !== lastCode) { // segment went outside
part.push(b);
if (i < len - 1) { // start a new line
result.push(part);
part = [];
}
} else if (i === len - 1) {
part.push(b);
}
break;
} else if (codeA & codeB) { // trivial reject
break;
} else if (codeA) { // a outside, intersect with clip edge
a = intersect(a, b, codeA, bbox);
codeA = bitCode(a, bbox);
} else { // b outside
b = intersect(a, b, codeB, bbox);
codeB = bitCode(b, bbox);
}
}
codeA = lastCode;
}
if (part.length) result.push(part);
return result;
}
// Sutherland-Hodgeman polygon clipping algorithm
function polygonclip(points, bbox) {
var result, edge, prev, prevInside, i, p, inside;
// clip against each side of the clip rectangle
for (edge = 1; edge <= 8; edge *= 2) {
result = [];
prev = points[points.length - 1];
prevInside = !(bitCode(prev, bbox) & edge);
for (i = 0; i < points.length; i++) {
p = points[i];
inside = !(bitCode(p, bbox) & edge);
// if segment goes through the clip window, add an intersection
if (inside !== prevInside) result.push(intersect(prev, p, edge, bbox));
if (inside) result.push(p); // add a point if it's inside
prev = p;
prevInside = inside;
}
points = result;
if (!points.length) break;
}
return result;
}
// intersect a segment against one of the 4 lines that make up the bbox
function intersect(a, b, edge, bbox) {
return edge & 8 ? [a[0] + (b[0] - a[0]) * (bbox[3] - a[1]) / (b[1] - a[1]), bbox[3]] : // top
edge & 4 ? [a[0] + (b[0] - a[0]) * (bbox[1] - a[1]) / (b[1] - a[1]), bbox[1]] : // bottom
edge & 2 ? [bbox[2], a[1] + (b[1] - a[1]) * (bbox[2] - a[0]) / (b[0] - a[0])] : // right
edge & 1 ? [bbox[0], a[1] + (b[1] - a[1]) * (bbox[0] - a[0]) / (b[0] - a[0])] : // left
null;
}
// bit code reflects the point position relative to the bbox:
// left mid right
// top 1001 1000 1010
// mid 0001 0000 0010
// bottom 0101 0100 0110
function bitCode(p, bbox) {
var code = 0;
if (p[0] < bbox[0]) code |= 1; // left
else if (p[0] > bbox[2]) code |= 2; // right
if (p[1] < bbox[1]) code |= 4; // bottom
else if (p[1] > bbox[3]) code |= 8; // top
return code;
}
},{}],45:[function(require,module,exports){
'use strict'
module.exports = monotoneConvexHull2D
var orient = require('robust-orientation')[3]
function monotoneConvexHull2D(points) {
var n = points.length
if(n < 3) {
var result = new Array(n)
for(var i=0; i<n; ++i) {
result[i] = i
}
if(n === 2 &&
points[0][0] === points[1][0] &&
points[0][1] === points[1][1]) {
return [0]
}
return result
}
//Sort point indices along x-axis
var sorted = new Array(n)
for(var i=0; i<n; ++i) {
sorted[i] = i
}
sorted.sort(function(a,b) {
var d = points[a][0]-points[b][0]
if(d) {
return d
}
return points[a][1] - points[b][1]
})
//Construct upper and lower hulls
var lower = [sorted[0], sorted[1]]
var upper = [sorted[0], sorted[1]]
for(var i=2; i<n; ++i) {
var idx = sorted[i]
var p = points[idx]
//Insert into lower list
var m = lower.length
while(m > 1 && orient(
points[lower[m-2]],
points[lower[m-1]],
p) <= 0) {
m -= 1
lower.pop()
}
lower.push(idx)
//Insert into upper list
m = upper.length
while(m > 1 && orient(
points[upper[m-2]],
points[upper[m-1]],
p) >= 0) {
m -= 1
upper.pop()
}
upper.push(idx)
}
//Merge lists together
var result = new Array(upper.length + lower.length - 2)
var ptr = 0
for(var i=0, nl=lower.length; i<nl; ++i) {
result[ptr++] = lower[i]
}
for(var j=upper.length-2; j>0; --j) {
result[ptr++] = upper[j]
}
//Return result
return result
}
},{"robust-orientation":48}],46:[function(require,module,exports){
'use strict';
module.exports = partialSort;
// Floyd-Rivest selection algorithm:
// Rearrange items so that all items in the [left, k] range are smaller than all items in (k, right];
// The k-th element will have the (k - left + 1)th smallest value in [left, right]
function partialSort(arr, k, left, right, compare) {
left = left || 0;
right = right || (arr.length - 1);
compare = compare || defaultCompare;
while (right > left) {
if (right - left > 600) {
var n = right - left + 1;
var m = k - left + 1;
var z = Math.log(n);
var s = 0.5 * Math.exp(2 * z / 3);
var sd = 0.5 * Math.sqrt(z * s * (n - s) / n) * (m - n / 2 < 0 ? -1 : 1);
var newLeft = Math.max(left, Math.floor(k - m * s / n + sd));
var newRight = Math.min(right, Math.floor(k + (n - m) * s / n + sd));
partialSort(arr, k, newLeft, newRight, compare);
}
var t = arr[k];
var i = left;
var j = right;
swap(arr, left, k);
if (compare(arr[right], t) > 0) swap(arr, left, right);
while (i < j) {
swap(arr, i, j);
i++;
j--;
while (compare(arr[i], t) < 0) i++;
while (compare(arr[j], t) > 0) j--;
}
if (compare(arr[left], t) === 0) swap(arr, left, j);
else {
j++;
swap(arr, j, right);
}
if (j <= k) left = j + 1;
if (k <= j) right = j - 1;
}
}
function swap(arr, i, j) {
var tmp = arr[i];
arr[i] = arr[j];
arr[j] = tmp;
}
function defaultCompare(a, b) {
return a < b ? -1 : a > b ? 1 : 0;
}
},{}],47:[function(require,module,exports){
'use strict';
module.exports = rbush;
var quickselect = require('quickselect');
function rbush(maxEntries, format) {
if (!(this instanceof rbush)) return new rbush(maxEntries, format);
// max entries in a node is 9 by default; min node fill is 40% for best performance
this._maxEntries = Math.max(4, maxEntries || 9);
this._minEntries = Math.max(2, Math.ceil(this._maxEntries * 0.4));
if (format) {
this._initFormat(format);
}
this.clear();
}
rbush.prototype = {
all: function () {
return this._all(this.data, []);
},
search: function (bbox) {
var node = this.data,
result = [],
toBBox = this.toBBox;
if (!intersects(bbox, node)) return result;
var nodesToSearch = [],
i, len, child, childBBox;
while (node) {
for (i = 0, len = node.children.length; i < len; i++) {
child = node.children[i];
childBBox = node.leaf ? toBBox(child) : child;
if (intersects(bbox, childBBox)) {
if (node.leaf) result.push(child);
else if (contains(bbox, childBBox)) this._all(child, result);
else nodesToSearch.push(child);
}
}
node = nodesToSearch.pop();
}
return result;
},
collides: function (bbox) {
var node = this.data,
toBBox = this.toBBox;
if (!intersects(bbox, node)) return false;
var nodesToSearch = [],
i, len, child, childBBox;
while (node) {
for (i = 0, len = node.children.length; i < len; i++) {
child = node.children[i];
childBBox = node.leaf ? toBBox(child) : child;
if (intersects(bbox, childBBox)) {
if (node.leaf || contains(bbox, childBBox)) return true;
nodesToSearch.push(child);
}
}
node = nodesToSearch.pop();
}
return false;
},
load: function (data) {
if (!(data && data.length)) return this;
if (data.length < this._minEntries) {
for (var i = 0, len = data.length; i < len; i++) {
this.insert(data[i]);
}
return this;
}
// recursively build the tree with the given data from stratch using OMT algorithm
var node = this._build(data.slice(), 0, data.length - 1, 0);
if (!this.data.children.length) {
// save as is if tree is empty
this.data = node;
} else if (this.data.height === node.height) {
// split root if trees have the same height
this._splitRoot(this.data, node);
} else {
if (this.data.height < node.height) {
// swap trees if inserted one is bigger
var tmpNode = this.data;
this.data = node;
node = tmpNode;
}
// insert the small tree into the large tree at appropriate level
this._insert(node, this.data.height - node.height - 1, true);
}
return this;
},
insert: function (item) {
if (item) this._insert(item, this.data.height - 1);
return this;
},
clear: function () {
this.data = createNode([]);
return this;
},
remove: function (item, equalsFn) {
if (!item) return this;
var node = this.data,
bbox = this.toBBox(item),
path = [],
indexes = [],
i, parent, index, goingUp;
// depth-first iterative tree traversal
while (node || path.length) {
if (!node) { // go up
node = path.pop();
parent = path[path.length - 1];
i = indexes.pop();
goingUp = true;
}
if (node.leaf) { // check current node
index = findItem(item, node.children, equalsFn);
if (index !== -1) {
// item found, remove the item and condense tree upwards
node.children.splice(index, 1);
path.push(node);
this._condense(path);
return this;
}
}
if (!goingUp && !node.leaf && contains(node, bbox)) { // go down
path.push(node);
indexes.push(i);
i = 0;
parent = node;
node = node.children[0];
} else if (parent) { // go right
i++;
node = parent.children[i];
goingUp = false;
} else node = null; // nothing found
}
return this;
},
toBBox: function (item) { return item; },
compareMinX: compareNodeMinX,
compareMinY: compareNodeMinY,
toJSON: function () { return this.data; },
fromJSON: function (data) {
this.data = data;
return this;
},
_all: function (node, result) {
var nodesToSearch = [];
while (node) {
if (node.leaf) result.push.apply(result, node.children);
else nodesToSearch.push.apply(nodesToSearch, node.children);
node = nodesToSearch.pop();
}
return result;
},
_build: function (items, left, right, height) {
var N = right - left + 1,
M = this._maxEntries,
node;
if (N <= M) {
// reached leaf level; return leaf
node = createNode(items.slice(left, right + 1));
calcBBox(node, this.toBBox);
return node;
}
if (!height) {
// target height of the bulk-loaded tree
height = Math.ceil(Math.log(N) / Math.log(M));
// target number of root entries to maximize storage utilization
M = Math.ceil(N / Math.pow(M, height - 1));
}
node = createNode([]);
node.leaf = false;
node.height = height;
// split the items into M mostly square tiles
var N2 = Math.ceil(N / M),
N1 = N2 * Math.ceil(Math.sqrt(M)),
i, j, right2, right3;
multiSelect(items, left, right, N1, this.compareMinX);
for (i = left; i <= right; i += N1) {
right2 = Math.min(i + N1 - 1, right);
multiSelect(items, i, right2, N2, this.compareMinY);
for (j = i; j <= right2; j += N2) {
right3 = Math.min(j + N2 - 1, right2);
// pack each entry recursively
node.children.push(this._build(items, j, right3, height - 1));
}
}
calcBBox(node, this.toBBox);
return node;
},
_chooseSubtree: function (bbox, node, level, path) {
var i, len, child, targetNode, area, enlargement, minArea, minEnlargement;
while (true) {
path.push(node);
if (node.leaf || path.length - 1 === level) break;
minArea = minEnlargement = Infinity;
for (i = 0, len = node.children.length; i < len; i++) {
child = node.children[i];
area = bboxArea(child);
enlargement = enlargedArea(bbox, child) - area;
// choose entry with the least area enlargement
if (enlargement < minEnlargement) {
minEnlargement = enlargement;
minArea = area < minArea ? area : minArea;
targetNode = child;
} else if (enlargement === minEnlargement) {
// otherwise choose one with the smallest area
if (area < minArea) {
minArea = area;
targetNode = child;
}
}
}
node = targetNode || node.children[0];
}
return node;
},
_insert: function (item, level, isNode) {
var toBBox = this.toBBox,
bbox = isNode ? item : toBBox(item),
insertPath = [];
// find the best node for accommodating the item, saving all nodes along the path too
var node = this._chooseSubtree(bbox, this.data, level, insertPath);
// put the item into the node
node.children.push(item);
extend(node, bbox);
// split on node overflow; propagate upwards if necessary
while (level >= 0) {
if (insertPath[level].children.length > this._maxEntries) {
this._split(insertPath, level);
level--;
} else break;
}
// adjust bboxes along the insertion path
this._adjustParentBBoxes(bbox, insertPath, level);
},
// split overflowed node into two
_split: function (insertPath, level) {
var node = insertPath[level],
M = node.children.length,
m = this._minEntries;
this._chooseSplitAxis(node, m, M);
var splitIndex = this._chooseSplitIndex(node, m, M);
var newNode = createNode(node.children.splice(splitIndex, node.children.length - splitIndex));
newNode.height = node.height;
newNode.leaf = node.leaf;
calcBBox(node, this.toBBox);
calcBBox(newNode, this.toBBox);
if (level) insertPath[level - 1].children.push(newNode);
else this._splitRoot(node, newNode);
},
_splitRoot: function (node, newNode) {
// split root node
this.data = createNode([node, newNode]);
this.data.height = node.height + 1;
this.data.leaf = false;
calcBBox(this.data, this.toBBox);
},
_chooseSplitIndex: function (node, m, M) {
var i, bbox1, bbox2, overlap, area, minOverlap, minArea, index;
minOverlap = minArea = Infinity;
for (i = m; i <= M - m; i++) {
bbox1 = distBBox(node, 0, i, this.toBBox);
bbox2 = distBBox(node, i, M, this.toBBox);
overlap = intersectionArea(bbox1, bbox2);
area = bboxArea(bbox1) + bboxArea(bbox2);
// choose distribution with minimum overlap
if (overlap < minOverlap) {
minOverlap = overlap;
index = i;
minArea = area < minArea ? area : minArea;
} else if (overlap === minOverlap) {
// otherwise choose distribution with minimum area
if (area < minArea) {
minArea = area;
index = i;
}
}
}
return index;
},
// sorts node children by the best axis for split
_chooseSplitAxis: function (node, m, M) {
var compareMinX = node.leaf ? this.compareMinX : compareNodeMinX,
compareMinY = node.leaf ? this.compareMinY : compareNodeMinY,
xMargin = this._allDistMargin(node, m, M, compareMinX),
yMargin = this._allDistMargin(node, m, M, compareMinY);
// if total distributions margin value is minimal for x, sort by minX,
// otherwise it's already sorted by minY
if (xMargin < yMargin) node.children.sort(compareMinX);
},
// total margin of all possible split distributions where each node is at least m full
_allDistMargin: function (node, m, M, compare) {
node.children.sort(compare);
var toBBox = this.toBBox,
leftBBox = distBBox(node, 0, m, toBBox),
rightBBox = distBBox(node, M - m, M, toBBox),
margin = bboxMargin(leftBBox) + bboxMargin(rightBBox),
i, child;
for (i = m; i < M - m; i++) {
child = node.children[i];
extend(leftBBox, node.leaf ? toBBox(child) : child);
margin += bboxMargin(leftBBox);
}
for (i = M - m - 1; i >= m; i--) {
child = node.children[i];
extend(rightBBox, node.leaf ? toBBox(child) : child);
margin += bboxMargin(rightBBox);
}
return margin;
},
_adjustParentBBoxes: function (bbox, path, level) {
// adjust bboxes along the given tree path
for (var i = level; i >= 0; i--) {
extend(path[i], bbox);
}
},
_condense: function (path) {
// go through the path, removing empty nodes and updating bboxes
for (var i = path.length - 1, siblings; i >= 0; i--) {
if (path[i].children.length === 0) {
if (i > 0) {
siblings = path[i - 1].children;
siblings.splice(siblings.indexOf(path[i]), 1);
} else this.clear();
} else calcBBox(path[i], this.toBBox);
}
},
_initFormat: function (format) {
// data format (minX, minY, maxX, maxY accessors)
// uses eval-type function compilation instead of just accepting a toBBox function
// because the algorithms are very sensitive to sorting functions performance,
// so they should be dead simple and without inner calls
var compareArr = ['return a', ' - b', ';'];
this.compareMinX = new Function('a', 'b', compareArr.join(format[0]));
this.compareMinY = new Function('a', 'b', compareArr.join(format[1]));
this.toBBox = new Function('a',
'return {minX: a' + format[0] +
', minY: a' + format[1] +
', maxX: a' + format[2] +
', maxY: a' + format[3] + '};');
}
};
function findItem(item, items, equalsFn) {
if (!equalsFn) return items.indexOf(item);
for (var i = 0; i < items.length; i++) {
if (equalsFn(item, items[i])) return i;
}
return -1;
}
// calculate node's bbox from bboxes of its children
function calcBBox(node, toBBox) {
distBBox(node, 0, node.children.length, toBBox, node);
}
// min bounding rectangle of node children from k to p-1
function distBBox(node, k, p, toBBox, destNode) {
if (!destNode) destNode = createNode(null);
destNode.minX = Infinity;
destNode.minY = Infinity;
destNode.maxX = -Infinity;
destNode.maxY = -Infinity;
for (var i = k, child; i < p; i++) {
child = node.children[i];
extend(destNode, node.leaf ? toBBox(child) : child);
}
return destNode;
}
function extend(a, b) {
a.minX = Math.min(a.minX, b.minX);
a.minY = Math.min(a.minY, b.minY);
a.maxX = Math.max(a.maxX, b.maxX);
a.maxY = Math.max(a.maxY, b.maxY);
return a;
}
function compareNodeMinX(a, b) { return a.minX - b.minX; }
function compareNodeMinY(a, b) { return a.minY - b.minY; }
function bboxArea(a) { return (a.maxX - a.minX) * (a.maxY - a.minY); }
function bboxMargin(a) { return (a.maxX - a.minX) + (a.maxY - a.minY); }
function enlargedArea(a, b) {
return (Math.max(b.maxX, a.maxX) - Math.min(b.minX, a.minX)) *
(Math.max(b.maxY, a.maxY) - Math.min(b.minY, a.minY));
}
function intersectionArea(a, b) {
var minX = Math.max(a.minX, b.minX),
minY = Math.max(a.minY, b.minY),
maxX = Math.min(a.maxX, b.maxX),
maxY = Math.min(a.maxY, b.maxY);
return Math.max(0, maxX - minX) *
Math.max(0, maxY - minY);
}
function contains(a, b) {
return a.minX <= b.minX &&
a.minY <= b.minY &&
b.maxX <= a.maxX &&
b.maxY <= a.maxY;
}
function intersects(a, b) {
return b.minX <= a.maxX &&
b.minY <= a.maxY &&
b.maxX >= a.minX &&
b.maxY >= a.minY;
}
function createNode(children) {
return {
children: children,
height: 1,
leaf: true,
minX: Infinity,
minY: Infinity,
maxX: -Infinity,
maxY: -Infinity
};
}
// sort an array so that items come in groups of n unsorted items, with groups sorted between each other;
// combines selection algorithm with binary divide & conquer approach
function multiSelect(arr, left, right, n, compare) {
var stack = [left, right],
mid;
while (stack.length) {
right = stack.pop();
left = stack.pop();
if (right - left <= n) continue;
mid = left + Math.ceil((right - left) / n / 2) * n;
quickselect(arr, mid, left, right, compare);
stack.push(left, mid, mid, right);
}
}
},{"quickselect":46}],48:[function(require,module,exports){
"use strict"
var twoProduct = require("two-product")
var robustSum = require("robust-sum")
var robustScale = require("robust-scale")
var robustSubtract = require("robust-subtract")
var NUM_EXPAND = 5
var EPSILON = 1.1102230246251565e-16
var ERRBOUND3 = (3.0 + 16.0 * EPSILON) * EPSILON
var ERRBOUND4 = (7.0 + 56.0 * EPSILON) * EPSILON
function cofactor(m, c) {
var result = new Array(m.length-1)
for(var i=1; i<m.length; ++i) {
var r = result[i-1] = new Array(m.length-1)
for(var j=0,k=0; j<m.length; ++j) {
if(j === c) {
continue
}
r[k++] = m[i][j]
}
}
return result
}
function matrix(n) {
var result = new Array(n)
for(var i=0; i<n; ++i) {
result[i] = new Array(n)
for(var j=0; j<n; ++j) {
result[i][j] = ["m", j, "[", (n-i-1), "]"].join("")
}
}
return result
}
function sign(n) {
if(n & 1) {
return "-"
}
return ""
}
function generateSum(expr) {
if(expr.length === 1) {
return expr[0]
} else if(expr.length === 2) {
return ["sum(", expr[0], ",", expr[1], ")"].join("")
} else {
var m = expr.length>>1
return ["sum(", generateSum(expr.slice(0, m)), ",", generateSum(expr.slice(m)), ")"].join("")
}
}
function determinant(m) {
if(m.length === 2) {
return [["sum(prod(", m[0][0], ",", m[1][1], "),prod(-", m[0][1], ",", m[1][0], "))"].join("")]
} else {
var expr = []
for(var i=0; i<m.length; ++i) {
expr.push(["scale(", generateSum(determinant(cofactor(m, i))), ",", sign(i), m[0][i], ")"].join(""))
}
return expr
}
}
function orientation(n) {
var pos = []
var neg = []
var m = matrix(n)
var args = []
for(var i=0; i<n; ++i) {
if((i&1)===0) {
pos.push.apply(pos, determinant(cofactor(m, i)))
} else {
neg.push.apply(neg, determinant(cofactor(m, i)))
}
args.push("m" + i)
}
var posExpr = generateSum(pos)
var negExpr = generateSum(neg)
var funcName = "orientation" + n + "Exact"
var code = ["function ", funcName, "(", args.join(), "){var p=", posExpr, ",n=", negExpr, ",d=sub(p,n);\
return d[d.length-1];};return ", funcName].join("")
var proc = new Function("sum", "prod", "scale", "sub", code)
return proc(robustSum, twoProduct, robustScale, robustSubtract)
}
var orientation3Exact = orientation(3)
var orientation4Exact = orientation(4)
var CACHED = [
function orientation0() { return 0 },
function orientation1() { return 0 },
function orientation2(a, b) {
return b[0] - a[0]
},
function orientation3(a, b, c) {
var l = (a[1] - c[1]) * (b[0] - c[0])
var r = (a[0] - c[0]) * (b[1] - c[1])
var det = l - r
var s
if(l > 0) {
if(r <= 0) {
return det
} else {
s = l + r
}
} else if(l < 0) {
if(r >= 0) {
return det
} else {
s = -(l + r)
}
} else {
return det
}
var tol = ERRBOUND3 * s
if(det >= tol || det <= -tol) {
return det
}
return orientation3Exact(a, b, c)
},
function orientation4(a,b,c,d) {
var adx = a[0] - d[0]
var bdx = b[0] - d[0]
var cdx = c[0] - d[0]
var ady = a[1] - d[1]
var bdy = b[1] - d[1]
var cdy = c[1] - d[1]
var adz = a[2] - d[2]
var bdz = b[2] - d[2]
var cdz = c[2] - d[2]
var bdxcdy = bdx * cdy
var cdxbdy = cdx * bdy
var cdxady = cdx * ady
var adxcdy = adx * cdy
var adxbdy = adx * bdy
var bdxady = bdx * ady
var det = adz * (bdxcdy - cdxbdy)
+ bdz * (cdxady - adxcdy)
+ cdz * (adxbdy - bdxady)
var permanent = (Math.abs(bdxcdy) + Math.abs(cdxbdy)) * Math.abs(adz)
+ (Math.abs(cdxady) + Math.abs(adxcdy)) * Math.abs(bdz)
+ (Math.abs(adxbdy) + Math.abs(bdxady)) * Math.abs(cdz)
var tol = ERRBOUND4 * permanent
if ((det > tol) || (-det > tol)) {
return det
}
return orientation4Exact(a,b,c,d)
}
]
function slowOrient(args) {
var proc = CACHED[args.length]
if(!proc) {
proc = CACHED[args.length] = orientation(args.length)
}
return proc.apply(undefined, args)
}
function generateOrientationProc() {
while(CACHED.length <= NUM_EXPAND) {
CACHED.push(orientation(CACHED.length))
}
var args = []
var procArgs = ["slow"]
for(var i=0; i<=NUM_EXPAND; ++i) {
args.push("a" + i)
procArgs.push("o" + i)
}
var code = [
"function getOrientation(", args.join(), "){switch(arguments.length){case 0:case 1:return 0;"
]
for(var i=2; i<=NUM_EXPAND; ++i) {
code.push("case ", i, ":return o", i, "(", args.slice(0, i).join(), ");")
}
code.push("}var s=new Array(arguments.length);for(var i=0;i<arguments.length;++i){s[i]=arguments[i]};return slow(s);}return getOrientation")
procArgs.push(code.join(""))
var proc = Function.apply(undefined, procArgs)
module.exports = proc.apply(undefined, [slowOrient].concat(CACHED))
for(var i=0; i<=NUM_EXPAND; ++i) {
module.exports[i] = CACHED[i]
}
}
generateOrientationProc()
},{"robust-scale":49,"robust-subtract":50,"robust-sum":51,"two-product":54}],49:[function(require,module,exports){
"use strict"
var twoProduct = require("two-product")
var twoSum = require("two-sum")
module.exports = scaleLinearExpansion
function scaleLinearExpansion(e, scale) {
var n = e.length
if(n === 1) {
var ts = twoProduct(e[0], scale)
if(ts[0]) {
return ts
}
return [ ts[1] ]
}
var g = new Array(2 * n)
var q = [0.1, 0.1]
var t = [0.1, 0.1]
var count = 0
twoProduct(e[0], scale, q)
if(q[0]) {
g[count++] = q[0]
}
for(var i=1; i<n; ++i) {
twoProduct(e[i], scale, t)
var pq = q[1]
twoSum(pq, t[0], q)
if(q[0]) {
g[count++] = q[0]
}
var a = t[1]
var b = q[1]
var x = a + b
var bv = x - a
var y = b - bv
q[1] = x
if(y) {
g[count++] = y
}
}
if(q[1]) {
g[count++] = q[1]
}
if(count === 0) {
g[count++] = 0.0
}
g.length = count
return g
}
},{"two-product":54,"two-sum":55}],50:[function(require,module,exports){
"use strict"
module.exports = robustSubtract
//Easy case: Add two scalars
function scalarScalar(a, b) {
var x = a + b
var bv = x - a
var av = x - bv
var br = b - bv
var ar = a - av
var y = ar + br
if(y) {
return [y, x]
}
return [x]
}
function robustSubtract(e, f) {
var ne = e.length|0
var nf = f.length|0
if(ne === 1 && nf === 1) {
return scalarScalar(e[0], -f[0])
}
var n = ne + nf
var g = new Array(n)
var count = 0
var eptr = 0
var fptr = 0
var abs = Math.abs
var ei = e[eptr]
var ea = abs(ei)
var fi = -f[fptr]
var fa = abs(fi)
var a, b
if(ea < fa) {
b = ei
eptr += 1
if(eptr < ne) {
ei = e[eptr]
ea = abs(ei)
}
} else {
b = fi
fptr += 1
if(fptr < nf) {
fi = -f[fptr]
fa = abs(fi)
}
}
if((eptr < ne && ea < fa) || (fptr >= nf)) {
a = ei
eptr += 1
if(eptr < ne) {
ei = e[eptr]
ea = abs(ei)
}
} else {
a = fi
fptr += 1
if(fptr < nf) {
fi = -f[fptr]
fa = abs(fi)
}
}
var x = a + b
var bv = x - a
var y = b - bv
var q0 = y
var q1 = x
var _x, _bv, _av, _br, _ar
while(eptr < ne && fptr < nf) {
if(ea < fa) {
a = ei
eptr += 1
if(eptr < ne) {
ei = e[eptr]
ea = abs(ei)
}
} else {
a = fi
fptr += 1
if(fptr < nf) {
fi = -f[fptr]
fa = abs(fi)
}
}
b = q0
x = a + b
bv = x - a
y = b - bv
if(y) {
g[count++] = y
}
_x = q1 + x
_bv = _x - q1
_av = _x - _bv
_br = x - _bv
_ar = q1 - _av
q0 = _ar + _br
q1 = _x
}
while(eptr < ne) {
a = ei
b = q0
x = a + b
bv = x - a
y = b - bv
if(y) {
g[count++] = y
}
_x = q1 + x
_bv = _x - q1
_av = _x - _bv
_br = x - _bv
_ar = q1 - _av
q0 = _ar + _br
q1 = _x
eptr += 1
if(eptr < ne) {
ei = e[eptr]
}
}
while(fptr < nf) {
a = fi
b = q0
x = a + b
bv = x - a
y = b - bv
if(y) {
g[count++] = y
}
_x = q1 + x
_bv = _x - q1
_av = _x - _bv
_br = x - _bv
_ar = q1 - _av
q0 = _ar + _br
q1 = _x
fptr += 1
if(fptr < nf) {
fi = -f[fptr]
}
}
if(q0) {
g[count++] = q0
}
if(q1) {
g[count++] = q1
}
if(!count) {
g[count++] = 0.0
}
g.length = count
return g
}
},{}],51:[function(require,module,exports){
"use strict"
module.exports = linearExpansionSum
//Easy case: Add two scalars
function scalarScalar(a, b) {
var x = a + b
var bv = x - a
var av = x - bv
var br = b - bv
var ar = a - av
var y = ar + br
if(y) {
return [y, x]
}
return [x]
}
function linearExpansionSum(e, f) {
var ne = e.length|0
var nf = f.length|0
if(ne === 1 && nf === 1) {
return scalarScalar(e[0], f[0])
}
var n = ne + nf
var g = new Array(n)
var count = 0
var eptr = 0
var fptr = 0
var abs = Math.abs
var ei = e[eptr]
var ea = abs(ei)
var fi = f[fptr]
var fa = abs(fi)
var a, b
if(ea < fa) {
b = ei
eptr += 1
if(eptr < ne) {
ei = e[eptr]
ea = abs(ei)
}
} else {
b = fi
fptr += 1
if(fptr < nf) {
fi = f[fptr]
fa = abs(fi)
}
}
if((eptr < ne && ea < fa) || (fptr >= nf)) {
a = ei
eptr += 1
if(eptr < ne) {
ei = e[eptr]
ea = abs(ei)
}
} else {
a = fi
fptr += 1
if(fptr < nf) {
fi = f[fptr]
fa = abs(fi)
}
}
var x = a + b
var bv = x - a
var y = b - bv
var q0 = y
var q1 = x
var _x, _bv, _av, _br, _ar
while(eptr < ne && fptr < nf) {
if(ea < fa) {
a = ei
eptr += 1
if(eptr < ne) {
ei = e[eptr]
ea = abs(ei)
}
} else {
a = fi
fptr += 1
if(fptr < nf) {
fi = f[fptr]
fa = abs(fi)
}
}
b = q0
x = a + b
bv = x - a
y = b - bv
if(y) {
g[count++] = y
}
_x = q1 + x
_bv = _x - q1
_av = _x - _bv
_br = x - _bv
_ar = q1 - _av
q0 = _ar + _br
q1 = _x
}
while(eptr < ne) {
a = ei
b = q0
x = a + b
bv = x - a
y = b - bv
if(y) {
g[count++] = y
}
_x = q1 + x
_bv = _x - q1
_av = _x - _bv
_br = x - _bv
_ar = q1 - _av
q0 = _ar + _br
q1 = _x
eptr += 1
if(eptr < ne) {
ei = e[eptr]
}
}
while(fptr < nf) {
a = fi
b = q0
x = a + b
bv = x - a
y = b - bv
if(y) {
g[count++] = y
}
_x = q1 + x
_bv = _x - q1
_av = _x - _bv
_br = x - _bv
_ar = q1 - _av
q0 = _ar + _br
q1 = _x
fptr += 1
if(fptr < nf) {
fi = f[fptr]
}
}
if(q0) {
g[count++] = q0
}
if(q1) {
g[count++] = q1
}
if(!count) {
g[count++] = 0.0
}
g.length = count
return g
}
},{}],52:[function(require,module,exports){
"use strict"; "use restrict";
var bits = require("bit-twiddle")
, UnionFind = require("union-find")
//Returns the dimension of a cell complex
function dimension(cells) {
var d = 0
, max = Math.max
for(var i=0, il=cells.length; i<il; ++i) {
d = max(d, cells[i].length)
}
return d-1
}
exports.dimension = dimension
//Counts the number of vertices in faces
function countVertices(cells) {
var vc = -1
, max = Math.max
for(var i=0, il=cells.length; i<il; ++i) {
var c = cells[i]
for(var j=0, jl=c.length; j<jl; ++j) {
vc = max(vc, c[j])
}
}
return vc+1
}
exports.countVertices = countVertices
//Returns a deep copy of cells
function cloneCells(cells) {
var ncells = new Array(cells.length)
for(var i=0, il=cells.length; i<il; ++i) {
ncells[i] = cells[i].slice(0)
}
return ncells
}
exports.cloneCells = cloneCells
//Ranks a pair of cells up to permutation
function compareCells(a, b) {
var n = a.length
, t = a.length - b.length
, min = Math.min
if(t) {
return t
}
switch(n) {
case 0:
return 0;
case 1:
return a[0] - b[0];
case 2:
var d = a[0]+a[1]-b[0]-b[1]
if(d) {
return d
}
return min(a[0],a[1]) - min(b[0],b[1])
case 3:
var l1 = a[0]+a[1]
, m1 = b[0]+b[1]
d = l1+a[2] - (m1+b[2])
if(d) {
return d
}
var l0 = min(a[0], a[1])
, m0 = min(b[0], b[1])
, d = min(l0, a[2]) - min(m0, b[2])
if(d) {
return d
}
return min(l0+a[2], l1) - min(m0+b[2], m1)
//TODO: Maybe optimize n=4 as well?
default:
var as = a.slice(0)
as.sort()
var bs = b.slice(0)
bs.sort()
for(var i=0; i<n; ++i) {
t = as[i] - bs[i]
if(t) {
return t
}
}
return 0
}
}
exports.compareCells = compareCells
function compareZipped(a, b) {
return compareCells(a[0], b[0])
}
//Puts a cell complex into normal order for the purposes of findCell queries
function normalize(cells, attr) {
if(attr) {
var len = cells.length
var zipped = new Array(len)
for(var i=0; i<len; ++i) {
zipped[i] = [cells[i], attr[i]]
}
zipped.sort(compareZipped)
for(var i=0; i<len; ++i) {
cells[i] = zipped[i][0]
attr[i] = zipped[i][1]
}
return cells
} else {
cells.sort(compareCells)
return cells
}
}
exports.normalize = normalize
//Removes all duplicate cells in the complex
function unique(cells) {
if(cells.length === 0) {
return []
}
var ptr = 1
, len = cells.length
for(var i=1; i<len; ++i) {
var a = cells[i]
if(compareCells(a, cells[i-1])) {
if(i === ptr) {
ptr++
continue
}
cells[ptr++] = a
}
}
cells.length = ptr
return cells
}
exports.unique = unique;
//Finds a cell in a normalized cell complex
function findCell(cells, c) {
var lo = 0
, hi = cells.length-1
, r = -1
while (lo <= hi) {
var mid = (lo + hi) >> 1
, s = compareCells(cells[mid], c)
if(s <= 0) {
if(s === 0) {
r = mid
}
lo = mid + 1
} else if(s > 0) {
hi = mid - 1
}
}
return r
}
exports.findCell = findCell;
//Builds an index for an n-cell. This is more general than dual, but less efficient
function incidence(from_cells, to_cells) {
var index = new Array(from_cells.length)
for(var i=0, il=index.length; i<il; ++i) {
index[i] = []
}
var b = []
for(var i=0, n=to_cells.length; i<n; ++i) {
var c = to_cells[i]
var cl = c.length
for(var k=1, kn=(1<<cl); k<kn; ++k) {
b.length = bits.popCount(k)
var l = 0
for(var j=0; j<cl; ++j) {
if(k & (1<<j)) {
b[l++] = c[j]
}
}
var idx=findCell(from_cells, b)
if(idx < 0) {
continue
}
while(true) {
index[idx++].push(i)
if(idx >= from_cells.length || compareCells(from_cells[idx], b) !== 0) {
break
}
}
}
}
return index
}
exports.incidence = incidence
//Computes the dual of the mesh. This is basically an optimized version of buildIndex for the situation where from_cells is just the list of vertices
function dual(cells, vertex_count) {
if(!vertex_count) {
return incidence(unique(skeleton(cells, 0)), cells, 0)
}
var res = new Array(vertex_count)
for(var i=0; i<vertex_count; ++i) {
res[i] = []
}
for(var i=0, len=cells.length; i<len; ++i) {
var c = cells[i]
for(var j=0, cl=c.length; j<cl; ++j) {
res[c[j]].push(i)
}
}
return res
}
exports.dual = dual
//Enumerates all cells in the complex
function explode(cells) {
var result = []
for(var i=0, il=cells.length; i<il; ++i) {
var c = cells[i]
, cl = c.length|0
for(var j=1, jl=(1<<cl); j<jl; ++j) {
var b = []
for(var k=0; k<cl; ++k) {
if((j >>> k) & 1) {
b.push(c[k])
}
}
result.push(b)
}
}
return normalize(result)
}
exports.explode = explode
//Enumerates all of the n-cells of a cell complex
function skeleton(cells, n) {
if(n < 0) {
return []
}
var result = []
, k0 = (1<<(n+1))-1
for(var i=0; i<cells.length; ++i) {
var c = cells[i]
for(var k=k0; k<(1<<c.length); k=bits.nextCombination(k)) {
var b = new Array(n+1)
, l = 0
for(var j=0; j<c.length; ++j) {
if(k & (1<<j)) {
b[l++] = c[j]
}
}
result.push(b)
}
}
return normalize(result)
}
exports.skeleton = skeleton;
//Computes the boundary of all cells, does not remove duplicates
function boundary(cells) {
var res = []
for(var i=0,il=cells.length; i<il; ++i) {
var c = cells[i]
for(var j=0,cl=c.length; j<cl; ++j) {
var b = new Array(c.length-1)
for(var k=0, l=0; k<cl; ++k) {
if(k !== j) {
b[l++] = c[k]
}
}
res.push(b)
}
}
return normalize(res)
}
exports.boundary = boundary;
//Computes connected components for a dense cell complex
function connectedComponents_dense(cells, vertex_count) {
var labels = new UnionFind(vertex_count)
for(var i=0; i<cells.length; ++i) {
var c = cells[i]
for(var j=0; j<c.length; ++j) {
for(var k=j+1; k<c.length; ++k) {
labels.link(c[j], c[k])
}
}
}
var components = []
, component_labels = labels.ranks
for(var i=0; i<component_labels.length; ++i) {
component_labels[i] = -1
}
for(var i=0; i<cells.length; ++i) {
var l = labels.find(cells[i][0])
if(component_labels[l] < 0) {
component_labels[l] = components.length
components.push([cells[i].slice(0)])
} else {
components[component_labels[l]].push(cells[i].slice(0))
}
}
return components
}
//Computes connected components for a sparse graph
function connectedComponents_sparse(cells) {
var vertices = unique(normalize(skeleton(cells, 0)))
, labels = new UnionFind(vertices.length)
for(var i=0; i<cells.length; ++i) {
var c = cells[i]
for(var j=0; j<c.length; ++j) {
var vj = findCell(vertices, [c[j]])
for(var k=j+1; k<c.length; ++k) {
labels.link(vj, findCell(vertices, [c[k]]))
}
}
}
var components = []
, component_labels = labels.ranks
for(var i=0; i<component_labels.length; ++i) {
component_labels[i] = -1
}
for(var i=0; i<cells.length; ++i) {
var l = labels.find(findCell(vertices, [cells[i][0]]));
if(component_labels[l] < 0) {
component_labels[l] = components.length
components.push([cells[i].slice(0)])
} else {
components[component_labels[l]].push(cells[i].slice(0))
}
}
return components
}
//Computes connected components for a cell complex
function connectedComponents(cells, vertex_count) {
if(vertex_count) {
return connectedComponents_dense(cells, vertex_count)
}
return connectedComponents_sparse(cells)
}
exports.connectedComponents = connectedComponents
},{"bit-twiddle":36,"union-find":56}],53:[function(require,module,exports){
/*
(c) 2013, Vladimir Agafonkin
Simplify.js, a high-performance JS polyline simplification library
mourner.github.io/simplify-js
*/
(function () { 'use strict';
// to suit your point format, run search/replace for '.x' and '.y';
// for 3D version, see 3d branch (configurability would draw significant performance overhead)
// square distance between 2 points
function getSqDist(p1, p2) {
var dx = p1.x - p2.x,
dy = p1.y - p2.y;
return dx * dx + dy * dy;
}
// square distance from a point to a segment
function getSqSegDist(p, p1, p2) {
var x = p1.x,
y = p1.y,
dx = p2.x - x,
dy = p2.y - y;
if (dx !== 0 || dy !== 0) {
var t = ((p.x - x) * dx + (p.y - y) * dy) / (dx * dx + dy * dy);
if (t > 1) {
x = p2.x;
y = p2.y;
} else if (t > 0) {
x += dx * t;
y += dy * t;
}
}
dx = p.x - x;
dy = p.y - y;
return dx * dx + dy * dy;
}
// rest of the code doesn't care about point format
// basic distance-based simplification
function simplifyRadialDist(points, sqTolerance) {
var prevPoint = points[0],
newPoints = [prevPoint],
point;
for (var i = 1, len = points.length; i < len; i++) {
point = points[i];
if (getSqDist(point, prevPoint) > sqTolerance) {
newPoints.push(point);
prevPoint = point;
}
}
if (prevPoint !== point) newPoints.push(point);
return newPoints;
}
// simplification using optimized Douglas-Peucker algorithm with recursion elimination
function simplifyDouglasPeucker(points, sqTolerance) {
var len = points.length,
MarkerArray = typeof Uint8Array !== 'undefined' ? Uint8Array : Array,
markers = new MarkerArray(len),
first = 0,
last = len - 1,
stack = [],
newPoints = [],
i, maxSqDist, sqDist, index;
markers[first] = markers[last] = 1;
while (last) {
maxSqDist = 0;
for (i = first + 1; i < last; i++) {
sqDist = getSqSegDist(points[i], points[first], points[last]);
if (sqDist > maxSqDist) {
index = i;
maxSqDist = sqDist;
}
}
if (maxSqDist > sqTolerance) {
markers[index] = 1;
stack.push(first, index, index, last);
}
last = stack.pop();
first = stack.pop();
}
for (i = 0; i < len; i++) {
if (markers[i]) newPoints.push(points[i]);
}
return newPoints;
}
// both algorithms combined for awesome performance
function simplify(points, tolerance, highestQuality) {
var sqTolerance = tolerance !== undefined ? tolerance * tolerance : 1;
points = highestQuality ? points : simplifyRadialDist(points, sqTolerance);
points = simplifyDouglasPeucker(points, sqTolerance);
return points;
}
// export as AMD module / Node module / browser or worker variable
if (typeof define === 'function' && define.amd) define(function() { return simplify; });
else if (typeof module !== 'undefined') module.exports = simplify;
else if (typeof self !== 'undefined') self.simplify = simplify;
else window.simplify = simplify;
})();
},{}],54:[function(require,module,exports){
"use strict"
module.exports = twoProduct
var SPLITTER = +(Math.pow(2, 27) + 1.0)
function twoProduct(a, b, result) {
var x = a * b
var c = SPLITTER * a
var abig = c - a
var ahi = c - abig
var alo = a - ahi
var d = SPLITTER * b
var bbig = d - b
var bhi = d - bbig
var blo = b - bhi
var err1 = x - (ahi * bhi)
var err2 = err1 - (alo * bhi)
var err3 = err2 - (ahi * blo)
var y = alo * blo - err3
if(result) {
result[0] = y
result[1] = x
return result
}
return [ y, x ]
}
},{}],55:[function(require,module,exports){
"use strict"
module.exports = fastTwoSum
function fastTwoSum(a, b, result) {
var x = a + b
var bv = x - a
var av = x - bv
var br = b - bv
var ar = a - av
if(result) {
result[0] = ar + br
result[1] = x
return result
}
return [ar+br, x]
}
},{}],56:[function(require,module,exports){
"use strict"; "use restrict";
module.exports = UnionFind;
function UnionFind(count) {
this.roots = new Array(count);
this.ranks = new Array(count);
for(var i=0; i<count; ++i) {
this.roots[i] = i;
this.ranks[i] = 0;
}
}
var proto = UnionFind.prototype
Object.defineProperty(proto, "length", {
"get": function() {
return this.roots.length
}
})
proto.makeSet = function() {
var n = this.roots.length;
this.roots.push(n);
this.ranks.push(0);
return n;
}
proto.find = function(x) {
var x0 = x
var roots = this.roots;
while(roots[x] !== x) {
x = roots[x]
}
while(roots[x0] !== x) {
var y = roots[x0]
roots[x0] = x
x0 = y
}
return x;
}
proto.link = function(x, y) {
var xr = this.find(x)
, yr = this.find(y);
if(xr === yr) {
return;
}
var ranks = this.ranks
, roots = this.roots
, xd = ranks[xr]
, yd = ranks[yr];
if(xd < yd) {
roots[xr] = yr;
} else if(yd < xd) {
roots[yr] = xr;
} else {
roots[yr] = xr;
++ranks[xr];
}
}
},{}]},{},[1])(1)
});
(function (f) {
if (typeof exports === "object" && typeof module !== "undefined") { module.exports = f() }
else if (typeof define === "function" && define.amd) { define('ThirdParty/TURFjs/turf-plugin',[], f) } else { var g; if (typeof window !== "undefined") { g = window } else if (typeof global !== "undefined") { g = global } else if (typeof self !== "undefined") { g = self } else { g = this } g.turf = f() }
})(function () {
var define, module, exports; return (function e(t, n, r) { function s(o, u) { if (!n[o]) { if (!t[o]) { var a = typeof require == "function" && require; if (!u && a) return a(o, !0); if (i) return i(o, !0); var f = new Error("Cannot find module '" + o + "'"); throw f.code = "MODULE_NOT_FOUND", f } var l = n[o] = { exports: {} }; t[o][0].call(l.exports, function (e) { var n = t[o][1][e]; return s(n ? n : e) }, l, l.exports, e, t, n, r) } return n[o].exports } var i = typeof require == "function" && require; for (var o = 0; o < r.length; o++) s(r[o]); return s })({
1: [function (require, module, exports) {
module.exports = {
lineIntersect: require('@turf/line-intersect'),
bboxClip: require('@turf/bbox-clip'),
polygonToLineString: require('@turf/polygon-to-linestring')
};
}, { "@turf/bbox-clip": 2, "@turf/line-intersect": 7, "@turf/polygon-to-linestring": 17 }], 2: [function (require, module, exports) {
var helpers = require('@turf/helpers');
var lineclip = require('lineclip');
var getCoords = require('@turf/invariant').getCoords;
var lineString = helpers.lineString;
var multiLineString = helpers.multiLineString;
var polygon = helpers.polygon;
var multiPolygon = helpers.multiPolygon;
/**
* Takes a {@link Feature} and a bbox and clips the feature to the bbox using [lineclip](https://github.com/mapbox/lineclip).
* May result in degenerate edges when clipping Polygons.
*
* @name bbox-clip
* @param {Feature<LineString|MultiLineString|Polygon|MultiPolygon>} feature feature to clip to the bbox
* @param {Array<number>} bbox extent in [minX, minY, maxX, maxY] order
* @returns {Feature<LineString|MultiLineString|Polygon|MultiPolygon>} clipped Feature
* @example
* var bbox = [0, 0, 10, 10];
* var poly = {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Polygon",
* "coordinates": [[[2, 2], [8, 4], [12, 8], [3, 7], [2, 2]]]
* }
* }
*
* var clipped = turf.bboxClip(poly, bbox);
*
* //=clipped
*/
module.exports = function (feature, bbox) {
var geom = getGeom(feature);
var coords = getCoords(feature);
var properties = feature.properties;
switch (geom) {
case 'LineString':
case 'MultiLineString':
var lines = [];
if (geom === 'LineString') coords = [coords];
coords.forEach(function (line) {
lineclip(line, bbox, lines);
});
if (lines.length === 1) return lineString(lines[0], properties);
return multiLineString(lines, properties);
case 'Polygon':
return polygon(clipPolygon(coords, bbox), properties);
case 'MultiPolygon':
return multiPolygon(coords.map(function (polygon) {
return clipPolygon(polygon, bbox);
}), properties);
default:
throw new Error('geometry ' + geom + ' not supported');
}
};
function clipPolygon(rings, bbox) {
var outRings = [];
for (var i = 0; i < rings.length; i++) {
var clipped = lineclip.polygon(rings[i], bbox);
if (clipped.length > 0) {
if (clipped[0][0] !== clipped[clipped.length - 1][0] || clipped[0][1] !== clipped[clipped.length - 1][1]) {
clipped.push(clipped[0]);
}
outRings.push(clipped);
}
}
return outRings;
}
function getGeom(feature) {
return (feature.geometry) ? feature.geometry.type : feature.type;
}
}, { "@turf/helpers": 3, "@turf/invariant": 4, "lineclip": 21 }], 3: [function (require, module, exports) {
/**
* Wraps a GeoJSON {@link Geometry} in a GeoJSON {@link Feature}.
*
* @name feature
* @param {Geometry} geometry input geometry
* @param {Object} properties properties
* @returns {FeatureCollection} a FeatureCollection of input features
* @example
* var geometry = {
* "type": "Point",
* "coordinates": [
* 67.5,
* 32.84267363195431
* ]
* }
*
* var feature = turf.feature(geometry);
*
* //=feature
*/
function feature(geometry, properties) {
if (!geometry) throw new Error('No geometry passed');
return {
type: 'Feature',
properties: properties || {},
geometry: geometry
};
}
/**
* Takes coordinates and properties (optional) and returns a new {@link Point} feature.
*
* @name point
* @param {Array<number>} coordinates longitude, latitude position (each in decimal degrees)
* @param {Object=} properties an Object that is used as the {@link Feature}'s
* properties
* @returns {Feature<Point>} a Point feature
* @example
* var pt1 = turf.point([-75.343, 39.984]);
*
* //=pt1
*/
function point(coordinates, properties) {
if (!coordinates) throw new Error('No coordinates passed');
if (coordinates.length === undefined) throw new Error('Coordinates must be an array');
if (coordinates.length < 2) throw new Error('Coordinates must be at least 2 numbers long');
if (typeof coordinates[0] !== 'number' || typeof coordinates[1] !== 'number') throw new Error('Coordinates must numbers');
return feature({
type: 'Point',
coordinates: coordinates
}, properties);
}
/**
* Takes an array of LinearRings and optionally an {@link Object} with properties and returns a {@link Polygon} feature.
*
* @name polygon
* @param {Array<Array<Array<number>>>} coordinates an array of LinearRings
* @param {Object=} properties a properties object
* @returns {Feature<Polygon>} a Polygon feature
* @throws {Error} throw an error if a LinearRing of the polygon has too few positions
* or if a LinearRing of the Polygon does not have matching Positions at the
* beginning & end.
* @example
* var polygon = turf.polygon([[
* [-2.275543, 53.464547],
* [-2.275543, 53.489271],
* [-2.215118, 53.489271],
* [-2.215118, 53.464547],
* [-2.275543, 53.464547]
* ]], { name: 'poly1', population: 400});
*
* //=polygon
*/
function polygon(coordinates, properties) {
if (!coordinates) throw new Error('No coordinates passed');
for (var i = 0; i < coordinates.length; i++) {
var ring = coordinates[i];
if (ring.length < 4) {
throw new Error('Each LinearRing of a Polygon must have 4 or more Positions.');
}
for (var j = 0; j < ring[ring.length - 1].length; j++) {
if (ring[ring.length - 1][j] !== ring[0][j]) {
throw new Error('First and last Position are not equivalent.');
}
}
}
return feature({
type: 'Polygon',
coordinates: coordinates
}, properties);
}
/**
* Creates a {@link LineString} based on a
* coordinate array. Properties can be added optionally.
*
* @name lineString
* @param {Array<Array<number>>} coordinates an array of Positions
* @param {Object=} properties an Object of key-value pairs to add as properties
* @returns {Feature<LineString>} a LineString feature
* @throws {Error} if no coordinates are passed
* @example
* var linestring1 = turf.lineString([
* [-21.964416, 64.148203],
* [-21.956176, 64.141316],
* [-21.93901, 64.135924],
* [-21.927337, 64.136673]
* ]);
* var linestring2 = turf.lineString([
* [-21.929054, 64.127985],
* [-21.912918, 64.134726],
* [-21.916007, 64.141016],
* [-21.930084, 64.14446]
* ], {name: 'line 1', distance: 145});
*
* //=linestring1
*
* //=linestring2
*/
function lineString(coordinates, properties) {
if (!coordinates) throw new Error('No coordinates passed');
return feature({
type: 'LineString',
coordinates: coordinates
}, properties);
}
/**
* Takes one or more {@link Feature|Features} and creates a {@link FeatureCollection}.
*
* @name featureCollection
* @param {Feature[]} features input features
* @returns {FeatureCollection} a FeatureCollection of input features
* @example
* var features = [
* turf.point([-75.343, 39.984], {name: 'Location A'}),
* turf.point([-75.833, 39.284], {name: 'Location B'}),
* turf.point([-75.534, 39.123], {name: 'Location C'})
* ];
*
* var fc = turf.featureCollection(features);
*
* //=fc
*/
function featureCollection(features) {
if (!features) throw new Error('No features passed');
return {
type: 'FeatureCollection',
features: features
};
}
/**
* Creates a {@link Feature<MultiLineString>} based on a
* coordinate array. Properties can be added optionally.
*
* @name multiLineString
* @param {Array<Array<Array<number>>>} coordinates an array of LineStrings
* @param {Object=} properties an Object of key-value pairs to add as properties
* @returns {Feature<MultiLineString>} a MultiLineString feature
* @throws {Error} if no coordinates are passed
* @example
* var multiLine = turf.multiLineString([[[0,0],[10,10]]]);
*
* //=multiLine
*
*/
function multiLineString(coordinates, properties) {
if (!coordinates) throw new Error('No coordinates passed');
return feature({
type: 'MultiLineString',
coordinates: coordinates
}, properties);
}
/**
* Creates a {@link Feature<MultiPoint>} based on a
* coordinate array. Properties can be added optionally.
*
* @name multiPoint
* @param {Array<Array<number>>} coordinates an array of Positions
* @param {Object=} properties an Object of key-value pairs to add as properties
* @returns {Feature<MultiPoint>} a MultiPoint feature
* @throws {Error} if no coordinates are passed
* @example
* var multiPt = turf.multiPoint([[0,0],[10,10]]);
*
* //=multiPt
*
*/
function multiPoint(coordinates, properties) {
if (!coordinates) throw new Error('No coordinates passed');
return feature({
type: 'MultiPoint',
coordinates: coordinates
}, properties);
}
/**
* Creates a {@link Feature<MultiPolygon>} based on a
* coordinate array. Properties can be added optionally.
*
* @name multiPolygon
* @param {Array<Array<Array<Array<number>>>>} coordinates an array of Polygons
* @param {Object=} properties an Object of key-value pairs to add as properties
* @returns {Feature<MultiPolygon>} a multipolygon feature
* @throws {Error} if no coordinates are passed
* @example
* var multiPoly = turf.multiPolygon([[[[0,0],[0,10],[10,10],[10,0],[0,0]]]]);
*
* //=multiPoly
*
*/
function multiPolygon(coordinates, properties) {
if (!coordinates) throw new Error('No coordinates passed');
return feature({
type: 'MultiPolygon',
coordinates: coordinates
}, properties);
}
/**
* Creates a {@link Feature<GeometryCollection>} based on a
* coordinate array. Properties can be added optionally.
*
* @name geometryCollection
* @param {Array<{Geometry}>} geometries an array of GeoJSON Geometries
* @param {Object=} properties an Object of key-value pairs to add as properties
* @returns {Feature<GeometryCollection>} a GeoJSON GeometryCollection Feature
* @example
* var pt = {
* "type": "Point",
* "coordinates": [100, 0]
* };
* var line = {
* "type": "LineString",
* "coordinates": [ [101, 0], [102, 1] ]
* };
* var collection = turf.geometryCollection([pt, line]);
*
* //=collection
*/
function geometryCollection(geometries, properties) {
if (!geometries) throw new Error('No geometries passed');
return feature({
type: 'GeometryCollection',
geometries: geometries
}, properties);
}
var factors = {
miles: 3960,
nauticalmiles: 3441.145,
degrees: 57.2957795,
radians: 1,
inches: 250905600,
yards: 6969600,
meters: 6373000,
metres: 6373000,
kilometers: 6373,
kilometres: 6373,
feet: 20908792.65
};
/**
* Convert a distance measurement from radians to a more friendly unit.
*
* @name radiansToDistance
* @param {number} radians in radians across the sphere
* @param {string} [units=kilometers] can be degrees, radians, miles, or kilometers inches, yards, metres, meters, kilometres, kilometers.
* @returns {number} distance
*/
function radiansToDistance(radians, units) {
var factor = factors[units || 'kilometers'];
if (factor === undefined) throw new Error('Invalid unit');
return radians * factor;
}
/**
* Convert a distance measurement from a real-world unit into radians
*
* @name distanceToRadians
* @param {number} distance in real units
* @param {string} [units=kilometers] can be degrees, radians, miles, or kilometers inches, yards, metres, meters, kilometres, kilometers.
* @returns {number} radians
*/
function distanceToRadians(distance, units) {
var factor = factors[units || 'kilometers'];
if (factor === undefined) throw new Error('Invalid unit');
return distance / factor;
}
/**
* Convert a distance measurement from a real-world unit into degrees
*
* @name distanceToDegrees
* @param {number} distance in real units
* @param {string} [units=kilometers] can be degrees, radians, miles, or kilometers inches, yards, metres, meters, kilometres, kilometers.
* @returns {number} degrees
*/
function distanceToDegrees(distance, units) {
var factor = factors[units || 'kilometers'];
if (factor === undefined) throw new Error('Invalid unit');
return (distance / factor) * 57.2958;
}
module.exports = {
feature: feature,
featureCollection: featureCollection,
geometryCollection: geometryCollection,
point: point,
multiPoint: multiPoint,
lineString: lineString,
multiLineString: multiLineString,
polygon: polygon,
multiPolygon: multiPolygon,
radiansToDistance: radiansToDistance,
distanceToRadians: distanceToRadians,
distanceToDegrees: distanceToDegrees
};
}, {}], 4: [function (require, module, exports) {
/**
* Unwrap a coordinate from a Point Feature, Geometry or a single coordinate.
*
* @name getCoord
* @param {Array<any>|Geometry|Feature<Point>} obj any value
* @returns {Array<number>} coordinates
*/
function getCoord(obj) {
if (!obj) throw new Error('No obj passed');
var coordinates = getCoords(obj);
// getCoord() must contain at least two numbers (Point)
if (coordinates.length > 1 &&
typeof coordinates[0] === 'number' &&
typeof coordinates[1] === 'number') {
return coordinates;
} else {
throw new Error('Coordinate is not a valid Point');
}
}
/**
* Unwrap coordinates from a Feature, Geometry Object or an Array of numbers
*
* @name getCoords
* @param {Array<any>|Geometry|Feature<any>} obj any value
* @returns {Array<any>} coordinates
*/
function getCoords(obj) {
if (!obj) throw new Error('No obj passed');
var coordinates;
// Array of numbers
if (obj.length) {
coordinates = obj;
// Geometry Object
} else if (obj.coordinates) {
coordinates = obj.coordinates;
// Feature
} else if (obj.geometry && obj.geometry.coordinates) {
coordinates = obj.geometry.coordinates;
}
// Checks if coordinates contains a number
if (coordinates) {
containsNumber(coordinates);
return coordinates;
}
throw new Error('No valid coordinates');
}
/**
* Checks if coordinates contains a number
*
* @name containsNumber
* @param {Array<any>} coordinates GeoJSON Coordinates
* @returns {boolean} true if Array contains a number
*/
function containsNumber(coordinates) {
if (coordinates.length > 1 &&
typeof coordinates[0] === 'number' &&
typeof coordinates[1] === 'number') {
return true;
}
if (Array.isArray(coordinates[0]) && coordinates[0].length) {
return containsNumber(coordinates[0]);
}
throw new Error('coordinates must only contain numbers');
}
/**
* Enforce expectations about types of GeoJSON objects for Turf.
*
* @name geojsonType
* @param {GeoJSON} value any GeoJSON object
* @param {string} type expected GeoJSON type
* @param {string} name name of calling function
* @throws {Error} if value is not the expected type.
*/
function geojsonType(value, type, name) {
if (!type || !name) throw new Error('type and name required');
if (!value || value.type !== type) {
throw new Error('Invalid input to ' + name + ': must be a ' + type + ', given ' + value.type);
}
}
/**
* Enforce expectations about types of {@link Feature} inputs for Turf.
* Internally this uses {@link geojsonType} to judge geometry types.
*
* @name featureOf
* @param {Feature} feature a feature with an expected geometry type
* @param {string} type expected GeoJSON type
* @param {string} name name of calling function
* @throws {Error} error if value is not the expected type.
*/
function featureOf(feature, type, name) {
if (!feature) throw new Error('No feature passed');
if (!name) throw new Error('.featureOf() requires a name');
if (!feature || feature.type !== 'Feature' || !feature.geometry) {
throw new Error('Invalid input to ' + name + ', Feature with geometry required');
}
if (!feature.geometry || feature.geometry.type !== type) {
throw new Error('Invalid input to ' + name + ': must be a ' + type + ', given ' + feature.geometry.type);
}
}
/**
* Enforce expectations about types of {@link FeatureCollection} inputs for Turf.
* Internally this uses {@link geojsonType} to judge geometry types.
*
* @name collectionOf
* @param {FeatureCollection} featureCollection a FeatureCollection for which features will be judged
* @param {string} type expected GeoJSON type
* @param {string} name name of calling function
* @throws {Error} if value is not the expected type.
*/
function collectionOf(featureCollection, type, name) {
if (!featureCollection) throw new Error('No featureCollection passed');
if (!name) throw new Error('.collectionOf() requires a name');
if (!featureCollection || featureCollection.type !== 'FeatureCollection') {
throw new Error('Invalid input to ' + name + ', FeatureCollection required');
}
for (var i = 0; i < featureCollection.features.length; i++) {
var feature = featureCollection.features[i];
if (!feature || feature.type !== 'Feature' || !feature.geometry) {
throw new Error('Invalid input to ' + name + ', Feature with geometry required');
}
if (!feature.geometry || feature.geometry.type !== type) {
throw new Error('Invalid input to ' + name + ': must be a ' + type + ', given ' + feature.geometry.type);
}
}
}
module.exports = {
geojsonType: geojsonType,
collectionOf: collectionOf,
featureOf: featureOf,
getCoord: getCoord,
getCoords: getCoords,
containsNumber: containsNumber
};
}, {}], 5: [function (require, module, exports) {
var each = require('@turf/meta').coordEach;
/**
* Takes a set of features, calculates the bbox of all input features, and returns a bounding box.
*
* @name bbox
* @param {(Feature|FeatureCollection)} geojson input features
* @return {Array<number>} bbox extent in [minX, minY, maxX, maxY] order
* @example
* var pt1 = turf.point([114.175329, 22.2524])
* var pt2 = turf.point([114.170007, 22.267969])
* var pt3 = turf.point([114.200649, 22.274641])
* var pt4 = turf.point([114.200649, 22.274641])
* var pt5 = turf.point([114.186744, 22.265745])
* var features = turf.featureCollection([pt1, pt2, pt3, pt4, pt5])
*
* var bbox = turf.bbox(features);
*
* var bboxPolygon = turf.bboxPolygon(bbox);
*
* //=bbox
*
* //=bboxPolygon
*/
module.exports = function (geojson) {
var bbox = [Infinity, Infinity, -Infinity, -Infinity];
each(geojson, function (coord) {
if (bbox[0] > coord[0]) bbox[0] = coord[0];
if (bbox[1] > coord[1]) bbox[1] = coord[1];
if (bbox[2] < coord[0]) bbox[2] = coord[0];
if (bbox[3] < coord[1]) bbox[3] = coord[1];
});
return bbox;
};
}, { "@turf/meta": 16 }], 6: [function (require, module, exports) {
/**
* Wraps a GeoJSON {@link Geometry} in a GeoJSON {@link Feature}.
*
* @name feature
* @param {Geometry} geometry input geometry
* @param {Object} properties properties
* @returns {FeatureCollection} a FeatureCollection of input features
* @example
* var geometry = {
* "type": "Point",
* "coordinates": [
* 67.5,
* 32.84267363195431
* ]
* }
*
* var feature = turf.feature(geometry);
*
* //=feature
*/
function feature(geometry, properties) {
if (!geometry) throw new Error('No geometry passed');
return {
type: 'Feature',
properties: properties || {},
geometry: geometry
};
}
module.exports.feature = feature;
/**
* Takes coordinates and properties (optional) and returns a new {@link Point} feature.
*
* @name point
* @param {Array<number>} coordinates longitude, latitude position (each in decimal degrees)
* @param {Object=} properties an Object that is used as the {@link Feature}'s
* properties
* @returns {Feature<Point>} a Point feature
* @example
* var pt1 = turf.point([-75.343, 39.984]);
*
* //=pt1
*/
module.exports.point = function (coordinates, properties) {
if (!coordinates) throw new Error('No coordinates passed');
if (coordinates.length === undefined) throw new Error('Coordinates must be an array');
if (coordinates.length < 2) throw new Error('Coordinates must be at least 2 numbers long');
if (typeof coordinates[0] !== 'number' || typeof coordinates[1] !== 'number') throw new Error('Coordinates must numbers');
return feature({
type: 'Point',
coordinates: coordinates
}, properties);
};
/**
* Takes an array of LinearRings and optionally an {@link Object} with properties and returns a {@link Polygon} feature.
*
* @name polygon
* @param {Array<Array<Array<number>>>} coordinates an array of LinearRings
* @param {Object=} properties a properties object
* @returns {Feature<Polygon>} a Polygon feature
* @throws {Error} throw an error if a LinearRing of the polygon has too few positions
* or if a LinearRing of the Polygon does not have matching Positions at the
* beginning & end.
* @example
* var polygon = turf.polygon([[
* [-2.275543, 53.464547],
* [-2.275543, 53.489271],
* [-2.215118, 53.489271],
* [-2.215118, 53.464547],
* [-2.275543, 53.464547]
* ]], { name: 'poly1', population: 400});
*
* //=polygon
*/
module.exports.polygon = function (coordinates, properties) {
if (!coordinates) throw new Error('No coordinates passed');
for (var i = 0; i < coordinates.length; i++) {
var ring = coordinates[i];
if (ring.length < 4) {
throw new Error('Each LinearRing of a Polygon must have 4 or more Positions.');
}
for (var j = 0; j < ring[ring.length - 1].length; j++) {
if (ring[ring.length - 1][j] !== ring[0][j]) {
throw new Error('First and last Position are not equivalent.');
}
}
}
return feature({
type: 'Polygon',
coordinates: coordinates
}, properties);
};
/**
* Creates a {@link LineString} based on a
* coordinate array. Properties can be added optionally.
*
* @name lineString
* @param {Array<Array<number>>} coordinates an array of Positions
* @param {Object=} properties an Object of key-value pairs to add as properties
* @returns {Feature<LineString>} a LineString feature
* @throws {Error} if no coordinates are passed
* @example
* var linestring1 = turf.lineString([
* [-21.964416, 64.148203],
* [-21.956176, 64.141316],
* [-21.93901, 64.135924],
* [-21.927337, 64.136673]
* ]);
* var linestring2 = turf.lineString([
* [-21.929054, 64.127985],
* [-21.912918, 64.134726],
* [-21.916007, 64.141016],
* [-21.930084, 64.14446]
* ], {name: 'line 1', distance: 145});
*
* //=linestring1
*
* //=linestring2
*/
module.exports.lineString = function (coordinates, properties) {
if (!coordinates) throw new Error('No coordinates passed');
return feature({
type: 'LineString',
coordinates: coordinates
}, properties);
};
/**
* Takes one or more {@link Feature|Features} and creates a {@link FeatureCollection}.
*
* @name featureCollection
* @param {Feature[]} features input features
* @returns {FeatureCollection} a FeatureCollection of input features
* @example
* var features = [
* turf.point([-75.343, 39.984], {name: 'Location A'}),
* turf.point([-75.833, 39.284], {name: 'Location B'}),
* turf.point([-75.534, 39.123], {name: 'Location C'})
* ];
*
* var fc = turf.featureCollection(features);
*
* //=fc
*/
module.exports.featureCollection = function (features) {
if (!features) throw new Error('No features passed');
return {
type: 'FeatureCollection',
features: features
};
};
/**
* Creates a {@link Feature<MultiLineString>} based on a
* coordinate array. Properties can be added optionally.
*
* @name multiLineString
* @param {Array<Array<Array<number>>>} coordinates an array of LineStrings
* @param {Object=} properties an Object of key-value pairs to add as properties
* @returns {Feature<MultiLineString>} a MultiLineString feature
* @throws {Error} if no coordinates are passed
* @example
* var multiLine = turf.multiLineString([[[0,0],[10,10]]]);
*
* //=multiLine
*
*/
module.exports.multiLineString = function (coordinates, properties) {
if (!coordinates) throw new Error('No coordinates passed');
return feature({
type: 'MultiLineString',
coordinates: coordinates
}, properties);
};
/**
* Creates a {@link Feature<MultiPoint>} based on a
* coordinate array. Properties can be added optionally.
*
* @name multiPoint
* @param {Array<Array<number>>} coordinates an array of Positions
* @param {Object=} properties an Object of key-value pairs to add as properties
* @returns {Feature<MultiPoint>} a MultiPoint feature
* @throws {Error} if no coordinates are passed
* @example
* var multiPt = turf.multiPoint([[0,0],[10,10]]);
*
* //=multiPt
*
*/
module.exports.multiPoint = function (coordinates, properties) {
if (!coordinates) throw new Error('No coordinates passed');
return feature({
type: 'MultiPoint',
coordinates: coordinates
}, properties);
};
/**
* Creates a {@link Feature<MultiPolygon>} based on a
* coordinate array. Properties can be added optionally.
*
* @name multiPolygon
* @param {Array<Array<Array<Array<number>>>>} coordinates an array of Polygons
* @param {Object=} properties an Object of key-value pairs to add as properties
* @returns {Feature<MultiPolygon>} a multipolygon feature
* @throws {Error} if no coordinates are passed
* @example
* var multiPoly = turf.multiPolygon([[[[0,0],[0,10],[10,10],[10,0],[0,0]]]]);
*
* //=multiPoly
*
*/
module.exports.multiPolygon = function (coordinates, properties) {
if (!coordinates) throw new Error('No coordinates passed');
return feature({
type: 'MultiPolygon',
coordinates: coordinates
}, properties);
};
/**
* Creates a {@link Feature<GeometryCollection>} based on a
* coordinate array. Properties can be added optionally.
*
* @name geometryCollection
* @param {Array<{Geometry}>} geometries an array of GeoJSON Geometries
* @param {Object=} properties an Object of key-value pairs to add as properties
* @returns {Feature<GeometryCollection>} a GeoJSON GeometryCollection Feature
* @example
* var pt = {
* "type": "Point",
* "coordinates": [100, 0]
* };
* var line = {
* "type": "LineString",
* "coordinates": [ [101, 0], [102, 1] ]
* };
* var collection = turf.geometryCollection([pt, line]);
*
* //=collection
*/
module.exports.geometryCollection = function (geometries, properties) {
if (!geometries) throw new Error('No geometries passed');
return feature({
type: 'GeometryCollection',
geometries: geometries
}, properties);
};
var factors = {
miles: 3960,
nauticalmiles: 3441.145,
degrees: 57.2957795,
radians: 1,
inches: 250905600,
yards: 6969600,
meters: 6373000,
metres: 6373000,
kilometers: 6373,
kilometres: 6373,
feet: 20908792.65
};
/*
* Convert a distance measurement from radians to a more friendly unit.
*
* @name radiansToDistance
* @param {number} distance in radians across the sphere
* @param {string} [units=kilometers] can be degrees, radians, miles, or kilometers
* inches, yards, metres, meters, kilometres, kilometers.
* @returns {number} distance
*/
module.exports.radiansToDistance = function (radians, units) {
var factor = factors[units || 'kilometers'];
if (factor === undefined) throw new Error('Invalid unit');
return radians * factor;
};
/*
* Convert a distance measurement from a real-world unit into radians
*
* @name distanceToRadians
* @param {number} distance in real units
* @param {string} [units=kilometers] can be degrees, radians, miles, or kilometers
* inches, yards, metres, meters, kilometres, kilometers.
* @returns {number} radians
*/
module.exports.distanceToRadians = function (distance, units) {
var factor = factors[units || 'kilometers'];
if (factor === undefined) throw new Error('Invalid unit');
return distance / factor;
};
/*
* Convert a distance measurement from a real-world unit into degrees
*
* @name distanceToRadians
* @param {number} distance in real units
* @param {string} [units=kilometers] can be degrees, radians, miles, or kilometers
* inches, yards, metres, meters, kilometres, kilometers.
* @returns {number} degrees
*/
module.exports.distanceToDegrees = function (distance, units) {
var factor = factors[units || 'kilometers'];
if (factor === undefined) throw new Error('Invalid unit');
return (distance / factor) * 57.2958;
};
}, {}], 7: [function (require, module, exports) {
var helpers = require('@turf/helpers');
var meta = require('@turf/meta');
var lineSegment = require('@turf/line-segment');
var getCoords = require('@turf/invariant').getCoords;
var rbush = require('geojson-rbush');
var point = helpers.point;
var featureCollection = helpers.featureCollection;
var featureEach = meta.featureEach;
/**
* Takes any LineString or Polygon GeoJSON and returns the intersecting point(s).
*
* @name lineIntersect
* @param {FeatureCollection|Feature<LineString|MultiLineString|Polygon|MultiPolygon>} line1 any LineString or Polygon
* @param {FeatureCollection|Feature<LineString|MultiLineString|Polygon|MultiPolygon>} line2 any LineString or Polygon
* @returns {FeatureCollection<Point>} point(s) that intersect both
* @example
* var line1 = {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "LineString",
* "coordinates": [[126, -11], [129, -21]]
* }
* };
* var line2 = {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "LineString",
* "coordinates": [[123, -18], [131, -14]]
* }
* };
* var points = turf.lineIntersect(line1, line2);
* //= points
*/
module.exports = function (line1, line2) {
var results = [];
// Handles simple 2-vertex segments
if (line1.geometry.type === 'LineString' &&
line2.geometry.type === 'LineString' &&
line1.geometry.coordinates.length === 2 &&
line2.geometry.coordinates.length === 2) {
var intersect = intersects(line1, line2);
if (intersect) results.push(intersect);
return featureCollection(results);
}
// Handles complex GeoJSON Geometries
var tree = rbush();
tree.load(lineSegment(line2));
featureEach(lineSegment(line1), function (segment) {
featureEach(tree.search(segment), function (match) {
var intersect = intersects(segment, match);
if (intersect) results.push(intersect);
});
});
return featureCollection(results);
};
/**
* Find a point that intersects LineStrings with two coordinates each
*
* @private
* @param {Feature<LineString>} line1 GeoJSON LineString (Must only contain 2 coordinates)
* @param {Feature<LineString>} line2 GeoJSON LineString (Must only contain 2 coordinates)
* @returns {Feature<Point>} intersecting GeoJSON Point
*/
function intersects(line1, line2) {
var coords1 = getCoords(line1);
var coords2 = getCoords(line2);
if (coords1.length !== 2) {
throw new Error('<intersects> line1 must only contain 2 coordinates');
}
if (coords2.length !== 2) {
throw new Error('<intersects> line2 must only contain 2 coordinates');
}
var x1 = coords1[0][0];
var y1 = coords1[0][1];
var x2 = coords1[1][0];
var y2 = coords1[1][1];
var x3 = coords2[0][0];
var y3 = coords2[0][1];
var x4 = coords2[1][0];
var y4 = coords2[1][1];
var denom = ((y4 - y3) * (x2 - x1)) - ((x4 - x3) * (y2 - y1));
var numeA = ((x4 - x3) * (y1 - y3)) - ((y4 - y3) * (x1 - x3));
var numeB = ((x2 - x1) * (y1 - y3)) - ((y2 - y1) * (x1 - x3));
if (denom === 0) {
if (numeA === 0 && numeB === 0) {
return null;
}
return null;
}
var uA = numeA / denom;
var uB = numeB / denom;
if (uA >= 0 && uA <= 1 && uB >= 0 && uB <= 1) {
var x = x1 + (uA * (x2 - x1));
var y = y1 + (uA * (y2 - y1));
return point([x, y]);
}
return null;
}
}, { "@turf/helpers": 8, "@turf/invariant": 9, "@turf/line-segment": 11, "@turf/meta": 10, "geojson-rbush": 20 }], 8: [function (require, module, exports) {
arguments[4][3][0].apply(exports, arguments)
}, { "dup": 3 }], 9: [function (require, module, exports) {
arguments[4][4][0].apply(exports, arguments)
}, { "dup": 4 }], 10: [function (require, module, exports) {
/**
* Callback for coordEach
*
* @private
* @callback coordEachCallback
* @param {Array<number>} currentCoords The current coordinates being processed.
* @param {number} currentIndex The index of the current element being processed in the
* array.Starts at index 0, if an initialValue is provided, and at index 1 otherwise.
*/
/**
* Iterate over coordinates in any GeoJSON object, similar to Array.forEach()
*
* @name coordEach
* @param {Object} layer any GeoJSON object
* @param {Function} callback a method that takes (currentCoords, currentIndex)
* @param {boolean} [excludeWrapCoord=false] whether or not to include
* the final coordinate of LinearRings that wraps the ring in its iteration.
* @example
* var features = {
* "type": "FeatureCollection",
* "features": [
* {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [26, 37]
* }
* },
* {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [36, 53]
* }
* }
* ]
* };
* turf.coordEach(features, function (currentCoords, currentIndex) {
* //=currentCoords
* //=currentIndex
* });
*/
function coordEach(layer, callback, excludeWrapCoord) {
var i, j, k, g, l, geometry, stopG, coords,
geometryMaybeCollection,
wrapShrink = 0,
currentIndex = 0,
isGeometryCollection,
isFeatureCollection = layer.type === 'FeatureCollection',
isFeature = layer.type === 'Feature',
stop = isFeatureCollection ? layer.features.length : 1;
// This logic may look a little weird. The reason why it is that way
// is because it's trying to be fast. GeoJSON supports multiple kinds
// of objects at its root: FeatureCollection, Features, Geometries.
// This function has the responsibility of handling all of them, and that
// means that some of the `for` loops you see below actually just don't apply
// to certain inputs. For instance, if you give this just a
// Point geometry, then both loops are short-circuited and all we do
// is gradually rename the input until it's called 'geometry'.
//
// This also aims to allocate as few resources as possible: just a
// few numbers and booleans, rather than any temporary arrays as would
// be required with the normalization approach.
for (i = 0; i < stop; i++) {
geometryMaybeCollection = (isFeatureCollection ? layer.features[i].geometry :
(isFeature ? layer.geometry : layer));
isGeometryCollection = geometryMaybeCollection.type === 'GeometryCollection';
stopG = isGeometryCollection ? geometryMaybeCollection.geometries.length : 1;
for (g = 0; g < stopG; g++) {
geometry = isGeometryCollection ?
geometryMaybeCollection.geometries[g] : geometryMaybeCollection;
coords = geometry.coordinates;
wrapShrink = (excludeWrapCoord &&
(geometry.type === 'Polygon' || geometry.type === 'MultiPolygon')) ?
1 : 0;
if (geometry.type === 'Point') {
callback(coords, currentIndex);
currentIndex++;
} else if (geometry.type === 'LineString' || geometry.type === 'MultiPoint') {
for (j = 0; j < coords.length; j++) {
callback(coords[j], currentIndex);
currentIndex++;
}
} else if (geometry.type === 'Polygon' || geometry.type === 'MultiLineString') {
for (j = 0; j < coords.length; j++)
for (k = 0; k < coords[j].length - wrapShrink; k++) {
callback(coords[j][k], currentIndex);
currentIndex++;
}
} else if (geometry.type === 'MultiPolygon') {
for (j = 0; j < coords.length; j++)
for (k = 0; k < coords[j].length; k++)
for (l = 0; l < coords[j][k].length - wrapShrink; l++) {
callback(coords[j][k][l], currentIndex);
currentIndex++;
}
} else if (geometry.type === 'GeometryCollection') {
for (j = 0; j < geometry.geometries.length; j++)
coordEach(geometry.geometries[j], callback, excludeWrapCoord);
} else {
throw new Error('Unknown Geometry Type');
}
}
}
}
/**
* Callback for coordReduce
*
* The first time the callback function is called, the values provided as arguments depend
* on whether the reduce method has an initialValue argument.
*
* If an initialValue is provided to the reduce method:
* - The previousValue argument is initialValue.
* - The currentValue argument is the value of the first element present in the array.
*
* If an initialValue is not provided:
* - The previousValue argument is the value of the first element present in the array.
* - The currentValue argument is the value of the second element present in the array.
*
* @private
* @callback coordReduceCallback
* @param {*} previousValue The accumulated value previously returned in the last invocation
* of the callback, or initialValue, if supplied.
* @param {Array<Number>} currentCoords The current coordinate being processed.
* @param {number} currentIndex The index of the current element being processed in the
* array.Starts at index 0, if an initialValue is provided, and at index 1 otherwise.
*/
/**
* Reduce coordinates in any GeoJSON object, similar to Array.reduce()
*
* @name coordReduce
* @param {Object} layer any GeoJSON object
* @param {Function} callback a method that takes (previousValue, currentCoords, currentIndex)
* @param {*} [initialValue] Value to use as the first argument to the first call of the callback.
* @param {boolean} [excludeWrapCoord=false] whether or not to include
* the final coordinate of LinearRings that wraps the ring in its iteration.
* @returns {*} The value that results from the reduction.
* @example
* var features = {
* "type": "FeatureCollection",
* "features": [
* {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [26, 37]
* }
* },
* {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [36, 53]
* }
* }
* ]
* };
* turf.coordReduce(features, function (previousValue, currentCoords, currentIndex) {
* //=previousValue
* //=currentCoords
* //=currentIndex
* return currentCoords;
* });
*/
function coordReduce(layer, callback, initialValue, excludeWrapCoord) {
var previousValue = initialValue;
coordEach(layer, function (currentCoords, currentIndex) {
if (currentIndex === 0 && initialValue === undefined) {
previousValue = currentCoords;
} else {
previousValue = callback(previousValue, currentCoords, currentIndex);
}
}, excludeWrapCoord);
return previousValue;
}
/**
* Callback for propEach
*
* @private
* @callback propEachCallback
* @param {*} currentProperties The current properties being processed.
* @param {number} currentIndex The index of the current element being processed in the
* array.Starts at index 0, if an initialValue is provided, and at index 1 otherwise.
*/
/**
* Iterate over properties in any GeoJSON object, similar to Array.forEach()
*
* @name propEach
* @param {Object} layer any GeoJSON object
* @param {Function} callback a method that takes (currentProperties, currentIndex)
* @example
* var features = {
* "type": "FeatureCollection",
* "features": [
* {
* "type": "Feature",
* "properties": {"foo": "bar"},
* "geometry": {
* "type": "Point",
* "coordinates": [26, 37]
* }
* },
* {
* "type": "Feature",
* "properties": {"hello": "world"},
* "geometry": {
* "type": "Point",
* "coordinates": [36, 53]
* }
* }
* ]
* };
* turf.propEach(features, function (currentProperties, currentIndex) {
* //=currentProperties
* //=currentIndex
* });
*/
function propEach(layer, callback) {
var i;
switch (layer.type) {
case 'FeatureCollection':
for (i = 0; i < layer.features.length; i++) {
callback(layer.features[i].properties, i);
}
break;
case 'Feature':
callback(layer.properties, 0);
break;
}
}
/**
* Callback for propReduce
*
* The first time the callback function is called, the values provided as arguments depend
* on whether the reduce method has an initialValue argument.
*
* If an initialValue is provided to the reduce method:
* - The previousValue argument is initialValue.
* - The currentValue argument is the value of the first element present in the array.
*
* If an initialValue is not provided:
* - The previousValue argument is the value of the first element present in the array.
* - The currentValue argument is the value of the second element present in the array.
*
* @private
* @callback propReduceCallback
* @param {*} previousValue The accumulated value previously returned in the last invocation
* of the callback, or initialValue, if supplied.
* @param {*} currentProperties The current properties being processed.
* @param {number} currentIndex The index of the current element being processed in the
* array.Starts at index 0, if an initialValue is provided, and at index 1 otherwise.
*/
/**
* Reduce properties in any GeoJSON object into a single value,
* similar to how Array.reduce works. However, in this case we lazily run
* the reduction, so an array of all properties is unnecessary.
*
* @name propReduce
* @param {Object} layer any GeoJSON object
* @param {Function} callback a method that takes (previousValue, currentProperties, currentIndex)
* @param {*} [initialValue] Value to use as the first argument to the first call of the callback.
* @returns {*} The value that results from the reduction.
* @example
* var features = {
* "type": "FeatureCollection",
* "features": [
* {
* "type": "Feature",
* "properties": {"foo": "bar"},
* "geometry": {
* "type": "Point",
* "coordinates": [26, 37]
* }
* },
* {
* "type": "Feature",
* "properties": {"hello": "world"},
* "geometry": {
* "type": "Point",
* "coordinates": [36, 53]
* }
* }
* ]
* };
* turf.propReduce(features, function (previousValue, currentProperties, currentIndex) {
* //=previousValue
* //=currentProperties
* //=currentIndex
* return currentProperties
* });
*/
function propReduce(layer, callback, initialValue) {
var previousValue = initialValue;
propEach(layer, function (currentProperties, currentIndex) {
if (currentIndex === 0 && initialValue === undefined) {
previousValue = currentProperties;
} else {
previousValue = callback(previousValue, currentProperties, currentIndex);
}
});
return previousValue;
}
/**
* Callback for featureEach
*
* @private
* @callback featureEachCallback
* @param {Feature<any>} currentFeature The current feature being processed.
* @param {number} currentIndex The index of the current element being processed in the
* array.Starts at index 0, if an initialValue is provided, and at index 1 otherwise.
*/
/**
* Iterate over features in any GeoJSON object, similar to
* Array.forEach.
*
* @name featureEach
* @param {Object} layer any GeoJSON object
* @param {Function} callback a method that takes (currentFeature, currentIndex)
* @example
* var features = {
* "type": "FeatureCollection",
* "features": [
* {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [26, 37]
* }
* },
* {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [36, 53]
* }
* }
* ]
* };
* turf.featureEach(features, function (currentFeature, currentIndex) {
* //=currentFeature
* //=currentIndex
* });
*/
function featureEach(layer, callback) {
if (layer.type === 'Feature') {
callback(layer, 0);
} else if (layer.type === 'FeatureCollection') {
for (var i = 0; i < layer.features.length; i++) {
callback(layer.features[i], i);
}
}
}
/**
* Callback for featureReduce
*
* The first time the callback function is called, the values provided as arguments depend
* on whether the reduce method has an initialValue argument.
*
* If an initialValue is provided to the reduce method:
* - The previousValue argument is initialValue.
* - The currentValue argument is the value of the first element present in the array.
*
* If an initialValue is not provided:
* - The previousValue argument is the value of the first element present in the array.
* - The currentValue argument is the value of the second element present in the array.
*
* @private
* @callback featureReduceCallback
* @param {*} previousValue The accumulated value previously returned in the last invocation
* of the callback, or initialValue, if supplied.
* @param {Feature<any>} currentFeature The current Feature being processed.
* @param {number} currentIndex The index of the current element being processed in the
* array.Starts at index 0, if an initialValue is provided, and at index 1 otherwise.
*/
/**
* Reduce features in any GeoJSON object, similar to Array.reduce().
*
* @name featureReduce
* @param {Object} layer any GeoJSON object
* @param {Function} callback a method that takes (previousValue, currentFeature, currentIndex)
* @param {*} [initialValue] Value to use as the first argument to the first call of the callback.
* @returns {*} The value that results from the reduction.
* @example
* var features = {
* "type": "FeatureCollection",
* "features": [
* {
* "type": "Feature",
* "properties": {"foo": "bar"},
* "geometry": {
* "type": "Point",
* "coordinates": [26, 37]
* }
* },
* {
* "type": "Feature",
* "properties": {"hello": "world"},
* "geometry": {
* "type": "Point",
* "coordinates": [36, 53]
* }
* }
* ]
* };
* turf.featureReduce(features, function (previousValue, currentFeature, currentIndex) {
* //=previousValue
* //=currentFeature
* //=currentIndex
* return currentFeature
* });
*/
function featureReduce(layer, callback, initialValue) {
var previousValue = initialValue;
featureEach(layer, function (currentFeature, currentIndex) {
if (currentIndex === 0 && initialValue === undefined) {
previousValue = currentFeature;
} else {
previousValue = callback(previousValue, currentFeature, currentIndex);
}
});
return previousValue;
}
/**
* Get all coordinates from any GeoJSON object.
*
* @name coordAll
* @param {Object} layer any GeoJSON object
* @returns {Array<Array<number>>} coordinate position array
* @example
* var features = {
* "type": "FeatureCollection",
* "features": [
* {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [26, 37]
* }
* },
* {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [36, 53]
* }
* }
* ]
* };
* var coords = turf.coordAll(features);
* //=coords
*/
function coordAll(layer) {
var coords = [];
coordEach(layer, function (coord) {
coords.push(coord);
});
return coords;
}
/**
* Iterate over each geometry in any GeoJSON object, similar to Array.forEach()
*
* @name geomEach
* @param {Object} layer any GeoJSON object
* @param {Function} callback a method that takes (currentGeometry, currentIndex)
* @example
* var features = {
* "type": "FeatureCollection",
* "features": [
* {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [26, 37]
* }
* },
* {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [36, 53]
* }
* }
* ]
* };
* turf.geomEach(features, function (currentGeometry, currentIndex) {
* //=currentGeometry
* //=currentIndex
* });
*/
function geomEach(layer, callback) {
var i, j, g, geometry, stopG,
geometryMaybeCollection,
isGeometryCollection,
currentIndex = 0,
isFeatureCollection = layer.type === 'FeatureCollection',
isFeature = layer.type === 'Feature',
stop = isFeatureCollection ? layer.features.length : 1;
// This logic may look a little weird. The reason why it is that way
// is because it's trying to be fast. GeoJSON supports multiple kinds
// of objects at its root: FeatureCollection, Features, Geometries.
// This function has the responsibility of handling all of them, and that
// means that some of the `for` loops you see below actually just don't apply
// to certain inputs. For instance, if you give this just a
// Point geometry, then both loops are short-circuited and all we do
// is gradually rename the input until it's called 'geometry'.
//
// This also aims to allocate as few resources as possible: just a
// few numbers and booleans, rather than any temporary arrays as would
// be required with the normalization approach.
for (i = 0; i < stop; i++) {
geometryMaybeCollection = (isFeatureCollection ? layer.features[i].geometry :
(isFeature ? layer.geometry : layer));
isGeometryCollection = geometryMaybeCollection.type === 'GeometryCollection';
stopG = isGeometryCollection ? geometryMaybeCollection.geometries.length : 1;
for (g = 0; g < stopG; g++) {
geometry = isGeometryCollection ?
geometryMaybeCollection.geometries[g] : geometryMaybeCollection;
if (geometry.type === 'Point' ||
geometry.type === 'LineString' ||
geometry.type === 'MultiPoint' ||
geometry.type === 'Polygon' ||
geometry.type === 'MultiLineString' ||
geometry.type === 'MultiPolygon') {
callback(geometry, currentIndex);
currentIndex++;
} else if (geometry.type === 'GeometryCollection') {
for (j = 0; j < geometry.geometries.length; j++) {
callback(geometry.geometries[j], currentIndex);
currentIndex++;
}
} else {
throw new Error('Unknown Geometry Type');
}
}
}
}
/**
* Callback for geomReduce
*
* The first time the callback function is called, the values provided as arguments depend
* on whether the reduce method has an initialValue argument.
*
* If an initialValue is provided to the reduce method:
* - The previousValue argument is initialValue.
* - The currentValue argument is the value of the first element present in the array.
*
* If an initialValue is not provided:
* - The previousValue argument is the value of the first element present in the array.
* - The currentValue argument is the value of the second element present in the array.
*
* @private
* @callback geomReduceCallback
* @param {*} previousValue The accumulated value previously returned in the last invocation
* of the callback, or initialValue, if supplied.
* @param {*} currentGeometry The current Feature being processed.
* @param {number} currentIndex The index of the current element being processed in the
* array.Starts at index 0, if an initialValue is provided, and at index 1 otherwise.
*/
/**
* Reduce geometry in any GeoJSON object, similar to Array.reduce().
*
* @name geomReduce
* @param {Object} layer any GeoJSON object
* @param {Function} callback a method that takes (previousValue, currentGeometry, currentIndex)
* @param {*} [initialValue] Value to use as the first argument to the first call of the callback.
* @returns {*} The value that results from the reduction.
* @example
* var features = {
* "type": "FeatureCollection",
* "features": [
* {
* "type": "Feature",
* "properties": {"foo": "bar"},
* "geometry": {
* "type": "Point",
* "coordinates": [26, 37]
* }
* },
* {
* "type": "Feature",
* "properties": {"hello": "world"},
* "geometry": {
* "type": "Point",
* "coordinates": [36, 53]
* }
* }
* ]
* };
* turf.geomReduce(features, function (previousValue, currentGeometry, currentIndex) {
* //=previousValue
* //=currentGeometry
* //=currentIndex
* return currentGeometry
* });
*/
function geomReduce(layer, callback, initialValue) {
var previousValue = initialValue;
geomEach(layer, function (currentGeometry, currentIndex) {
if (currentIndex === 0 && initialValue === undefined) {
previousValue = currentGeometry;
} else {
previousValue = callback(previousValue, currentGeometry, currentIndex);
}
});
return previousValue;
}
module.exports = {
coordEach: coordEach,
coordReduce: coordReduce,
propEach: propEach,
propReduce: propReduce,
featureEach: featureEach,
featureReduce: featureReduce,
coordAll: coordAll,
geomEach: geomEach,
geomReduce: geomReduce
};
}, {}], 11: [function (require, module, exports) {
var flatten = require('@turf/flatten');
var featureEach = require('@turf/meta').featureEach;
var lineString = require('@turf/helpers').lineString;
var featureCollection = require('@turf/helpers').featureCollection;
var getCoords = require('@turf/invariant').getCoords;
/**
* Creates a {@link FeatureCollection} of 2-vertex {@link LineString} segments from a {@link LineString}, {@link MultiLineString}, {@link MultiPolygon} or {@link Polygon}.
*
* @name lineSegment
* @param {FeatureCollection|Feature<LineString|MultiLineString|MultiPolygon|Polygon>} geojson GeoJSON Polygon or LineString
* @returns {FeatureCollection<LineString>} 2-vertex line segments
* @example
* var polygon = {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Polygon",
* "coordinates": [[[-50, 5], [-40, -10], [-50, -10], [-40, 5], [-50, 5]]]
* }
* }
* var segments = turf.lineSegment(polygon);
* //=segments
*/
module.exports = function (geojson) {
var results = [];
var index = 0;
featureEach(geojson, function (multiFeature) {
featureEach(flatten(multiFeature), function (feature) {
var coords = [];
var type = (feature.geometry) ? feature.geometry.type : feature.type;
switch (type) {
case 'Polygon':
coords = getCoords(feature);
break;
case 'LineString':
coords = [getCoords(feature)];
}
coords.forEach(function (coord) {
var segments = createSegments(coord, feature.properties);
segments.forEach(function (segment) {
segment.id = index;
results.push(segment);
index++;
});
});
});
});
return featureCollection(results);
};
/**
* Create Segments from LineString coordinates
*
* @private
* @param {LineString} coords LineString coordinates
* @param {*} properties GeoJSON properties
* @returns {Array<Feature<LineString>>} line segments
*/
function createSegments(coords, properties) {
var segments = [];
coords.reduce(function (previousCoords, currentCoords) {
var segment = lineString([previousCoords, currentCoords], properties);
segment.bbox = bbox(previousCoords, currentCoords);
segments.push(segment);
return currentCoords;
});
return segments;
}
/**
* Create BBox between two coordinates (faster than @turf/bbox)
*
* @private
* @param {Array<Number>} coords1 Point coordinate
* @param {Array<Number>} coords2 Point coordinate
* @returns {BBox} [west, south, east, north]
*/
function bbox(coords1, coords2) {
var x1 = coords1[0];
var y1 = coords1[1];
var x2 = coords2[0];
var y2 = coords2[1];
var west = (x1 < x2) ? x1 : x2;
var south = (y1 < y2) ? y1 : y2;
var east = (x1 > x2) ? x1 : x2;
var north = (y1 > y2) ? y1 : y2;
return [west, south, east, north];
}
}, { "@turf/flatten": 12, "@turf/helpers": 13, "@turf/invariant": 14, "@turf/meta": 15 }], 12: [function (require, module, exports) {
var featureEach = require('@turf/meta').featureEach;
var geomEach = require('@turf/meta').geomEach;
var getCoords = require('@turf/invariant').getCoords;
var helpers = require('@turf/helpers');
var point = helpers.point;
var lineString = helpers.lineString;
var polygon = helpers.polygon;
var featureCollection = helpers.featureCollection;
/**
* Flattens any {@link GeoJSON} to a {@link FeatureCollection} inspired by [geojson-flatten](https://github.com/tmcw/geojson-flatten).
*
* @name flatten
* @param {Feature} geojson any valid {@link GeoJSON} with multi-geometry {@link Feature}s
* @returns {FeatureCollection} a flattened {@link FeatureCollection}
* @example
* var geometry = {
* "type": "MultiPolygon",
* "coordinates": [
* [[[102.0, 2.0], [103.0, 2.0], [103.0, 3.0], [102.0, 3.0], [102.0, 2.0]]],
* [[[100.0, 0.0], [101.0, 0.0], [101.0, 1.0], [100.0, 1.0], [100.0, 0.0]],
* [[100.2, 0.2], [100.8, 0.2], [100.8, 0.8], [100.2, 0.8], [100.2, 0.2]]]
* ]
* };
*
* var flattened = turf.flatten(geometry);
*
* //=flattened
*/
function flatten(geojson) {
var type = (geojson.geometry) ? geojson.geometry.type : geojson.type;
switch (type) {
case 'MultiPoint':
return flattenMultiPoint(geojson);
case 'MultiPolygon':
return flattenMultiPolygon(geojson);
case 'MultiLineString':
return flattenMultiLineString(geojson);
case 'FeatureCollection':
return flattenFeatureCollection(geojson);
case 'GeometryCollection':
return flattenGeometryCollection(geojson);
case 'Point':
case 'LineString':
case 'Polygon':
return featureCollection([geojson]);
}
}
module.exports = flatten;
/**
* Flatten MultiPoint
*
* @private
* @param {Feature<MultiPoint>} geojson GeoJSON Feature
* @returns {FeatureCollection<Point>} Feature Collection
*/
function flattenMultiPoint(geojson) {
var points = [];
getCoords(geojson).forEach(function (coords) {
points.push(point(coords, geojson.properties));
});
return featureCollection(points);
}
/**
* Flatten MultiLineString
*
* @private
* @param {Feature<MultiLineString>} geojson GeoJSON Feature
* @returns {FeatureCollection<LineString>} Feature Collection
*/
function flattenMultiLineString(geojson) {
var lines = [];
getCoords(geojson).forEach(function (coords) {
lines.push(lineString(coords, geojson.properties));
});
return featureCollection(lines);
}
/**
* Flatten MultiPolygon
*
* @private
* @param {Feature<MultiPolygon>} geojson GeoJSON Feature
* @returns {FeatureCollection<Polygon>} Feature Collection
*/
function flattenMultiPolygon(geojson) {
var polygons = [];
getCoords(geojson).forEach(function (coords) {
polygons.push(polygon(coords, geojson.properties));
});
return featureCollection(polygons);
}
/**
* Flatten FeatureCollection
*
* @private
* @param {FeatureCollection<any>} geojson GeoJSON Feature
* @returns {FeatureCollection<any>} Feature Collection
*/
function flattenFeatureCollection(geojson) {
var features = [];
featureEach(geojson, function (multiFeature) {
switch (multiFeature.geometry.type) {
case 'MultiPoint':
case 'MultiLineString':
case 'MultiPolygon':
featureEach(flatten(multiFeature), function (feature) {
features.push(feature);
});
break;
default:
features.push(multiFeature);
}
});
return featureCollection(features);
}
/**
* Flatten GeometryCollection
*
* @private
* @param {GeometryCollection<any>} geojson GeoJSON Geometry Collection
* @param {*} [properties] translate properties to Feature
* @returns {FeatureCollection<any>} Feature Collection
*/
function flattenGeometryCollection(geojson) {
var features = [];
geomEach(geojson, function (geometry) {
switch (geometry.type) {
case 'MultiPoint':
case 'MultiLineString':
case 'MultiPolygon':
featureEach(flatten(geometry), function (feature) {
features.push(feature);
});
break;
default:
var feature = {
type: 'Feature',
properties: {},
geometry: geometry
};
features.push(feature);
}
});
return featureCollection(features);
}
}, { "@turf/helpers": 13, "@turf/invariant": 14, "@turf/meta": 15 }], 13: [function (require, module, exports) {
arguments[4][3][0].apply(exports, arguments)
}, { "dup": 3 }], 14: [function (require, module, exports) {
arguments[4][4][0].apply(exports, arguments)
}, { "dup": 4 }], 15: [function (require, module, exports) {
arguments[4][10][0].apply(exports, arguments)
}, { "dup": 10 }], 16: [function (require, module, exports) {
/**
* Callback for coordEach
*
* @private
* @callback coordEachCallback
* @param {Array<Number>} currentCoords The current coordinates being processed.
* @param {number} currentIndex The index of the current element being processed in the
* array.Starts at index 0, if an initialValue is provided, and at index 1 otherwise.
*/
/**
* Iterate over coordinates in any GeoJSON object, similar to Array.forEach()
*
* @name coordEach
* @param {Object} layer any GeoJSON object
* @param {Function} callback a method that takes (currentCoords, currentIndex)
* @param {boolean} [excludeWrapCoord=false] whether or not to include
* the final coordinate of LinearRings that wraps the ring in its iteration.
* @example
* var features = {
* "type": "FeatureCollection",
* "features": [
* {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [26, 37]
* }
* },
* {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [36, 53]
* }
* }
* ]
* };
* turf.coordEach(features, function (currentCoords, currentIndex) {
* //=currentCoords
* //=currentIndex
* });
*/
function coordEach(layer, callback, excludeWrapCoord) {
var i, j, k, g, l, geometry, stopG, coords,
geometryMaybeCollection,
wrapShrink = 0,
currentIndex = 0,
isGeometryCollection,
isFeatureCollection = layer.type === 'FeatureCollection',
isFeature = layer.type === 'Feature',
stop = isFeatureCollection ? layer.features.length : 1;
// This logic may look a little weird. The reason why it is that way
// is because it's trying to be fast. GeoJSON supports multiple kinds
// of objects at its root: FeatureCollection, Features, Geometries.
// This function has the responsibility of handling all of them, and that
// means that some of the `for` loops you see below actually just don't apply
// to certain inputs. For instance, if you give this just a
// Point geometry, then both loops are short-circuited and all we do
// is gradually rename the input until it's called 'geometry'.
//
// This also aims to allocate as few resources as possible: just a
// few numbers and booleans, rather than any temporary arrays as would
// be required with the normalization approach.
for (i = 0; i < stop; i++) {
geometryMaybeCollection = (isFeatureCollection ? layer.features[i].geometry :
(isFeature ? layer.geometry : layer));
isGeometryCollection = geometryMaybeCollection.type === 'GeometryCollection';
stopG = isGeometryCollection ? geometryMaybeCollection.geometries.length : 1;
for (g = 0; g < stopG; g++) {
geometry = isGeometryCollection ?
geometryMaybeCollection.geometries[g] : geometryMaybeCollection;
coords = geometry.coordinates;
wrapShrink = (excludeWrapCoord &&
(geometry.type === 'Polygon' || geometry.type === 'MultiPolygon')) ?
1 : 0;
if (geometry.type === 'Point') {
callback(coords, currentIndex);
currentIndex++;
} else if (geometry.type === 'LineString' || geometry.type === 'MultiPoint') {
for (j = 0; j < coords.length; j++) {
callback(coords[j], currentIndex);
currentIndex++;
}
} else if (geometry.type === 'Polygon' || geometry.type === 'MultiLineString') {
for (j = 0; j < coords.length; j++)
for (k = 0; k < coords[j].length - wrapShrink; k++) {
callback(coords[j][k], currentIndex);
currentIndex++;
}
} else if (geometry.type === 'MultiPolygon') {
for (j = 0; j < coords.length; j++)
for (k = 0; k < coords[j].length; k++)
for (l = 0; l < coords[j][k].length - wrapShrink; l++) {
callback(coords[j][k][l], currentIndex);
currentIndex++;
}
} else if (geometry.type === 'GeometryCollection') {
for (j = 0; j < geometry.geometries.length; j++)
coordEach(geometry.geometries[j], callback, excludeWrapCoord);
} else {
throw new Error('Unknown Geometry Type');
}
}
}
}
module.exports.coordEach = coordEach;
/**
* Callback for coordReduce
*
* The first time the callback function is called, the values provided as arguments depend
* on whether the reduce method has an initialValue argument.
*
* If an initialValue is provided to the reduce method:
* - The previousValue argument is initialValue.
* - The currentValue argument is the value of the first element present in the array.
*
* If an initialValue is not provided:
* - The previousValue argument is the value of the first element present in the array.
* - The currentValue argument is the value of the second element present in the array.
*
* @private
* @callback coordReduceCallback
* @param {*} previousValue The accumulated value previously returned in the last invocation
* of the callback, or initialValue, if supplied.
* @param {Array<Number>} currentCoords The current coordinate being processed.
* @param {number} currentIndex The index of the current element being processed in the
* array.Starts at index 0, if an initialValue is provided, and at index 1 otherwise.
*/
/**
* Reduce coordinates in any GeoJSON object, similar to Array.reduce()
*
* @name coordReduce
* @param {Object} layer any GeoJSON object
* @param {Function} callback a method that takes (previousValue, currentCoords, currentIndex)
* @param {*} [initialValue] Value to use as the first argument to the first call of the callback.
* @param {boolean} [excludeWrapCoord=false] whether or not to include
* the final coordinate of LinearRings that wraps the ring in its iteration.
* @returns {*} The value that results from the reduction.
* @example
* var features = {
* "type": "FeatureCollection",
* "features": [
* {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [26, 37]
* }
* },
* {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [36, 53]
* }
* }
* ]
* };
* turf.coordReduce(features, function (previousValue, currentCoords, currentIndex) {
* //=previousValue
* //=currentCoords
* //=currentIndex
* return currentCoords;
* });
*/
function coordReduce(layer, callback, initialValue, excludeWrapCoord) {
var previousValue = initialValue;
coordEach(layer, function (currentCoords, currentIndex) {
if (currentIndex === 0 && initialValue === undefined) {
previousValue = currentCoords;
} else {
previousValue = callback(previousValue, currentCoords, currentIndex);
}
}, excludeWrapCoord);
return previousValue;
}
module.exports.coordReduce = coordReduce;
/**
* Callback for propEach
*
* @private
* @callback propEachCallback
* @param {*} currentProperties The current properties being processed.
* @param {number} currentIndex The index of the current element being processed in the
* array.Starts at index 0, if an initialValue is provided, and at index 1 otherwise.
*/
/**
* Iterate over properties in any GeoJSON object, similar to Array.forEach()
*
* @name propEach
* @param {Object} layer any GeoJSON object
* @param {Function} callback a method that takes (currentProperties, currentIndex)
* @example
* var features = {
* "type": "FeatureCollection",
* "features": [
* {
* "type": "Feature",
* "properties": {"foo": "bar"},
* "geometry": {
* "type": "Point",
* "coordinates": [26, 37]
* }
* },
* {
* "type": "Feature",
* "properties": {"hello": "world"},
* "geometry": {
* "type": "Point",
* "coordinates": [36, 53]
* }
* }
* ]
* };
* turf.propEach(features, function (currentProperties, currentIndex) {
* //=currentProperties
* //=currentIndex
* });
*/
function propEach(layer, callback) {
var i;
switch (layer.type) {
case 'FeatureCollection':
for (i = 0; i < layer.features.length; i++) {
callback(layer.features[i].properties, i);
}
break;
case 'Feature':
callback(layer.properties, 0);
break;
}
}
module.exports.propEach = propEach;
/**
* Callback for propReduce
*
* The first time the callback function is called, the values provided as arguments depend
* on whether the reduce method has an initialValue argument.
*
* If an initialValue is provided to the reduce method:
* - The previousValue argument is initialValue.
* - The currentValue argument is the value of the first element present in the array.
*
* If an initialValue is not provided:
* - The previousValue argument is the value of the first element present in the array.
* - The currentValue argument is the value of the second element present in the array.
*
* @private
* @callback propReduceCallback
* @param {*} previousValue The accumulated value previously returned in the last invocation
* of the callback, or initialValue, if supplied.
* @param {*} currentProperties The current properties being processed.
* @param {number} currentIndex The index of the current element being processed in the
* array.Starts at index 0, if an initialValue is provided, and at index 1 otherwise.
*/
/**
* Reduce properties in any GeoJSON object into a single value,
* similar to how Array.reduce works. However, in this case we lazily run
* the reduction, so an array of all properties is unnecessary.
*
* @name propReduce
* @param {Object} layer any GeoJSON object
* @param {Function} callback a method that takes (previousValue, currentProperties, currentIndex)
* @param {*} [initialValue] Value to use as the first argument to the first call of the callback.
* @returns {*} The value that results from the reduction.
* @example
* var features = {
* "type": "FeatureCollection",
* "features": [
* {
* "type": "Feature",
* "properties": {"foo": "bar"},
* "geometry": {
* "type": "Point",
* "coordinates": [26, 37]
* }
* },
* {
* "type": "Feature",
* "properties": {"hello": "world"},
* "geometry": {
* "type": "Point",
* "coordinates": [36, 53]
* }
* }
* ]
* };
* turf.propReduce(features, function (previousValue, currentProperties, currentIndex) {
* //=previousValue
* //=currentProperties
* //=currentIndex
* return currentProperties
* });
*/
function propReduce(layer, callback, initialValue) {
var previousValue = initialValue;
propEach(layer, function (currentProperties, currentIndex) {
if (currentIndex === 0 && initialValue === undefined) {
previousValue = currentProperties;
} else {
previousValue = callback(previousValue, currentProperties, currentIndex);
}
});
return previousValue;
}
module.exports.propReduce = propReduce;
/**
* Callback for featureEach
*
* @private
* @callback featureEachCallback
* @param {Feature<any>} currentFeature The current feature being processed.
* @param {number} currentIndex The index of the current element being processed in the
* array.Starts at index 0, if an initialValue is provided, and at index 1 otherwise.
*/
/**
* Iterate over features in any GeoJSON object, similar to
* Array.forEach.
*
* @name featureEach
* @param {Object} layer any GeoJSON object
* @param {Function} callback a method that takes (currentFeature, currentIndex)
* @example
* var features = {
* "type": "FeatureCollection",
* "features": [
* {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [26, 37]
* }
* },
* {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [36, 53]
* }
* }
* ]
* };
* turf.featureEach(features, function (currentFeature, currentIndex) {
* //=currentFeature
* //=currentIndex
* });
*/
function featureEach(layer, callback) {
if (layer.type === 'Feature') {
callback(layer, 0);
} else if (layer.type === 'FeatureCollection') {
for (var i = 0; i < layer.features.length; i++) {
callback(layer.features[i], i);
}
}
}
module.exports.featureEach = featureEach;
/**
* Callback for featureReduce
*
* The first time the callback function is called, the values provided as arguments depend
* on whether the reduce method has an initialValue argument.
*
* If an initialValue is provided to the reduce method:
* - The previousValue argument is initialValue.
* - The currentValue argument is the value of the first element present in the array.
*
* If an initialValue is not provided:
* - The previousValue argument is the value of the first element present in the array.
* - The currentValue argument is the value of the second element present in the array.
*
* @private
* @callback featureReduceCallback
* @param {*} previousValue The accumulated value previously returned in the last invocation
* of the callback, or initialValue, if supplied.
* @param {Feature<any>} currentFeature The current Feature being processed.
* @param {number} currentIndex The index of the current element being processed in the
* array.Starts at index 0, if an initialValue is provided, and at index 1 otherwise.
*/
/**
* Reduce features in any GeoJSON object, similar to Array.reduce().
*
* @name featureReduce
* @param {Object} layer any GeoJSON object
* @param {Function} callback a method that takes (previousValue, currentFeature, currentIndex)
* @param {*} [initialValue] Value to use as the first argument to the first call of the callback.
* @returns {*} The value that results from the reduction.
* @example
* var features = {
* "type": "FeatureCollection",
* "features": [
* {
* "type": "Feature",
* "properties": {"foo": "bar"},
* "geometry": {
* "type": "Point",
* "coordinates": [26, 37]
* }
* },
* {
* "type": "Feature",
* "properties": {"hello": "world"},
* "geometry": {
* "type": "Point",
* "coordinates": [36, 53]
* }
* }
* ]
* };
* turf.featureReduce(features, function (previousValue, currentFeature, currentIndex) {
* //=previousValue
* //=currentFeature
* //=currentIndex
* return currentFeature
* });
*/
function featureReduce(layer, callback, initialValue) {
var previousValue = initialValue;
featureEach(layer, function (currentFeature, currentIndex) {
if (currentIndex === 0 && initialValue === undefined) {
previousValue = currentFeature;
} else {
previousValue = callback(previousValue, currentFeature, currentIndex);
}
});
return previousValue;
}
module.exports.featureReduce = featureReduce;
/**
* Get all coordinates from any GeoJSON object.
*
* @name coordAll
* @param {Object} layer any GeoJSON object
* @returns {Array<Array<number>>} coordinate position array
* @example
* var features = {
* "type": "FeatureCollection",
* "features": [
* {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [26, 37]
* }
* },
* {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [36, 53]
* }
* }
* ]
* };
* var coords = turf.coordAll(features);
* //=coords
*/
function coordAll(layer) {
var coords = [];
coordEach(layer, function (coord) {
coords.push(coord);
});
return coords;
}
module.exports.coordAll = coordAll;
/**
* Iterate over each geometry in any GeoJSON object, similar to Array.forEach()
*
* @name geomEach
* @param {Object} layer any GeoJSON object
* @param {Function} callback a method that takes (currentGeometry, currentIndex)
* @example
* var features = {
* "type": "FeatureCollection",
* "features": [
* {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [26, 37]
* }
* },
* {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Point",
* "coordinates": [36, 53]
* }
* }
* ]
* };
* turf.geomEach(features, function (currentGeometry, currentIndex) {
* //=currentGeometry
* //=currentIndex
* });
*/
function geomEach(layer, callback) {
var i, j, g, geometry, stopG,
geometryMaybeCollection,
isGeometryCollection,
currentIndex = 0,
isFeatureCollection = layer.type === 'FeatureCollection',
isFeature = layer.type === 'Feature',
stop = isFeatureCollection ? layer.features.length : 1;
// This logic may look a little weird. The reason why it is that way
// is because it's trying to be fast. GeoJSON supports multiple kinds
// of objects at its root: FeatureCollection, Features, Geometries.
// This function has the responsibility of handling all of them, and that
// means that some of the `for` loops you see below actually just don't apply
// to certain inputs. For instance, if you give this just a
// Point geometry, then both loops are short-circuited and all we do
// is gradually rename the input until it's called 'geometry'.
//
// This also aims to allocate as few resources as possible: just a
// few numbers and booleans, rather than any temporary arrays as would
// be required with the normalization approach.
for (i = 0; i < stop; i++) {
geometryMaybeCollection = (isFeatureCollection ? layer.features[i].geometry :
(isFeature ? layer.geometry : layer));
isGeometryCollection = geometryMaybeCollection.type === 'GeometryCollection';
stopG = isGeometryCollection ? geometryMaybeCollection.geometries.length : 1;
for (g = 0; g < stopG; g++) {
geometry = isGeometryCollection ?
geometryMaybeCollection.geometries[g] : geometryMaybeCollection;
if (geometry.type === 'Point' ||
geometry.type === 'LineString' ||
geometry.type === 'MultiPoint' ||
geometry.type === 'Polygon' ||
geometry.type === 'MultiLineString' ||
geometry.type === 'MultiPolygon') {
callback(geometry, currentIndex);
currentIndex++;
} else if (geometry.type === 'GeometryCollection') {
for (j = 0; j < geometry.geometries.length; j++) {
callback(geometry.geometries[j], currentIndex);
currentIndex++;
}
} else {
throw new Error('Unknown Geometry Type');
}
}
}
}
module.exports.geomEach = geomEach;
/**
* Callback for geomReduce
*
* The first time the callback function is called, the values provided as arguments depend
* on whether the reduce method has an initialValue argument.
*
* If an initialValue is provided to the reduce method:
* - The previousValue argument is initialValue.
* - The currentValue argument is the value of the first element present in the array.
*
* If an initialValue is not provided:
* - The previousValue argument is the value of the first element present in the array.
* - The currentValue argument is the value of the second element present in the array.
*
* @private
* @callback geomReduceCallback
* @param {*} previousValue The accumulated value previously returned in the last invocation
* of the callback, or initialValue, if supplied.
* @param {*} currentGeometry The current Feature being processed.
* @param {number} currentIndex The index of the current element being processed in the
* array.Starts at index 0, if an initialValue is provided, and at index 1 otherwise.
*/
/**
* Reduce geometry in any GeoJSON object, similar to Array.reduce().
*
* @name geomReduce
* @param {Object} layer any GeoJSON object
* @param {Function} callback a method that takes (previousValue, currentGeometry, currentIndex)
* @param {*} [initialValue] Value to use as the first argument to the first call of the callback.
* @returns {*} The value that results from the reduction.
* @example
* var features = {
* "type": "FeatureCollection",
* "features": [
* {
* "type": "Feature",
* "properties": {"foo": "bar"},
* "geometry": {
* "type": "Point",
* "coordinates": [26, 37]
* }
* },
* {
* "type": "Feature",
* "properties": {"hello": "world"},
* "geometry": {
* "type": "Point",
* "coordinates": [36, 53]
* }
* }
* ]
* };
* turf.geomReduce(features, function (previousValue, currentGeometry, currentIndex) {
* //=previousValue
* //=currentGeometry
* //=currentIndex
* return currentGeometry
* });
*/
function geomReduce(layer, callback, initialValue) {
var previousValue = initialValue;
geomEach(layer, function (currentGeometry, currentIndex) {
if (currentIndex === 0 && initialValue === undefined) {
previousValue = currentGeometry;
} else {
previousValue = callback(previousValue, currentGeometry, currentIndex);
}
});
return previousValue;
}
module.exports.geomReduce = geomReduce;
}, {}], 17: [function (require, module, exports) {
var getCoords = require('@turf/invariant').getCoords;
var helpers = require('@turf/helpers');
var lineString = helpers.lineString;
var multiLineString = helpers.multiLineString;
var featureCollection = helpers.featureCollection;
/**
* Converts a {@link Polygon} or {@link MultiPolygon} to a {@link FeatureCollection} of {@link LineString} or {@link MultiLineString}.
*
* @name polygonToLineString
* @param {Feature<Polygon|MultiPolygon>} polygon Feature to convert
* @returns {FeatureCollection<LineString|MultiLinestring>} converted Feature to Lines
* @example
* var poly = {
* 'type': 'Feature',
* 'properties': {},
* 'geometry': {
* 'type': 'Polygon',
* 'coordinates': [[[125, -30], [145, -30], [145, -20], [125, -20], [125, -30]]]
* }
* }
* var lines = turf.polygonToLineString(poly);
* //addToMap
* var addToMap = [lines]
*/
module.exports = function (polygon) {
var geom = getGeomType(polygon);
var coords = getCoords(polygon);
var properties = polygon.properties;
if (!coords.length) throw new Error('polygon must contain coordinates');
switch (geom) {
case 'Polygon':
return featureCollection([coordsToLine(coords, properties)]);
case 'MultiPolygon':
var lines = [];
coords.forEach(function (coord) {
lines.push(coordsToLine(coord, properties));
});
return featureCollection(lines);
default:
throw new Error('geom ' + geom + ' not supported');
}
};
function coordsToLine(coords, properties) {
if (coords.length > 1) return multiLineString(coords, properties);
return lineString(coords[0], properties);
}
function getGeomType(feature) {
return (feature.geometry) ? feature.geometry.type : feature.type;
}
}, { "@turf/helpers": 18, "@turf/invariant": 19 }], 18: [function (require, module, exports) {
arguments[4][3][0].apply(exports, arguments)
}, { "dup": 3 }], 19: [function (require, module, exports) {
arguments[4][4][0].apply(exports, arguments)
}, { "dup": 4 }], 20: [function (require, module, exports) {
var turfBBox = require('@turf/bbox');
var featureCollection = require('@turf/helpers').featureCollection;
var featureEach = require('@turf/meta').featureEach;
var rbush = require('rbush');
/**
* GeoJSON implementation of [RBush](https://github.com/mourner/rbush#rbush) spatial index.
*
* @name rbush
* @param {number} [maxEntries=9] defines the maximum number of entries in a tree node. 9 (used by default) is a
* reasonable choice for most applications. Higher value means faster insertion and slower search, and vice versa.
* @returns {RBush} GeoJSON RBush
* @example
* var rbush = require('geojson-rbush')
* var tree = rbush()
*/
module.exports = function (maxEntries) {
var tree = rbush(maxEntries);
/**
* [insert](https://github.com/mourner/rbush#data-format)
*
* @param {Feature<any>} feature insert single GeoJSON Feature
* @returns {RBush} GeoJSON RBush
* @example
* var polygon = {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Polygon",
* "coordinates": [[[-78, 41], [-67, 41], [-67, 48], [-78, 48], [-78, 41]]]
* }
* }
* tree.insert(polygon)
*/
tree.insert = function (feature) {
feature.bbox = feature.bbox ? feature.bbox : turfBBox(feature);
return rbush.prototype.insert.call(this, feature);
};
/**
* [load](https://github.com/mourner/rbush#bulk-inserting-data)
*
* @param {FeatureCollection<any>} features load entire GeoJSON FeatureCollection
* @returns {RBush} GeoJSON RBush
* @example
* var polygons = {
* "type": "FeatureCollection",
* "features": [
* {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Polygon",
* "coordinates": [[[-78, 41], [-67, 41], [-67, 48], [-78, 48], [-78, 41]]]
* }
* },
* {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Polygon",
* "coordinates": [[[-93, 32], [-83, 32], [-83, 39], [-93, 39], [-93, 32]]]
* }
* }
* ]
* }
* tree.load(polygons)
*/
tree.load = function (features) {
var load = [];
featureEach(features, function (feature) {
feature.bbox = feature.bbox ? feature.bbox : turfBBox(feature);
load.push(feature);
});
return rbush.prototype.load.call(this, load);
};
/**
* [remove](https://github.com/mourner/rbush#removing-data)
*
* @param {Feature<any>} feature remove single GeoJSON Feature
* @returns {RBush} GeoJSON RBush
* @example
* var polygon = {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Polygon",
* "coordinates": [[[-78, 41], [-67, 41], [-67, 48], [-78, 48], [-78, 41]]]
* }
* }
* tree.remove(polygon)
*/
tree.remove = function (feature) {
return rbush.prototype.remove.call(this, feature);
};
/**
* [clear](https://github.com/mourner/rbush#removing-data)
*
* @returns {RBush} GeoJSON Rbush
* @example
* tree.clear()
*/
tree.clear = function () {
return rbush.prototype.clear.call(this);
};
/**
* [search](https://github.com/mourner/rbush#search)
*
* @param {FeatureCollection|Feature<any>} geojson search with GeoJSON
* @returns {FeatureCollection<any>} all features that intersects with the given GeoJSON.
* @example
* var polygon = {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Polygon",
* "coordinates": [[[-78, 41], [-67, 41], [-67, 48], [-78, 48], [-78, 41]]]
* }
* }
* tree.search(polygon)
*/
tree.search = function (geojson) {
var search = rbush.prototype.search.call(this, this.toBBox(geojson));
return featureCollection(search);
};
/**
* [collides](https://github.com/mourner/rbush#collisions)
*
* @param {FeatureCollection|Feature<any>} geojson collides with GeoJSON
* @returns {boolean} true if there are any items intersecting the given GeoJSON, otherwise false.
* @example
* var polygon = {
* "type": "Feature",
* "properties": {},
* "geometry": {
* "type": "Polygon",
* "coordinates": [[[-78, 41], [-67, 41], [-67, 48], [-78, 48], [-78, 41]]]
* }
* }
* tree.collides(polygon)
*/
tree.collides = function (geojson) {
return rbush.prototype.collides.call(this, this.toBBox(geojson));
};
/**
* [all](https://github.com/mourner/rbush#search)
*
* @returns {FeatureCollection<any>} all the features in RBush
* @example
* tree.all()
* //=FeatureCollection
*/
tree.all = function () {
var all = rbush.prototype.all.call(this);
return featureCollection(all);
};
/**
* [toJSON](https://github.com/mourner/rbush#export-and-import)
*
* @returns {any} export data as JSON object
* @example
* var exported = tree.toJSON()
* //=JSON object
*/
tree.toJSON = function () {
return rbush.prototype.toJSON.call(this);
};
/**
* [fromJSON](https://github.com/mourner/rbush#export-and-import)
*
* @param {any} json import previously exported data
* @returns {RBush} GeoJSON RBush
* @example
* var exported = {
* "children": [
* {
* "type": "Feature",
* "geometry": {
* "type": "Point",
* "coordinates": [110, 50]
* },
* "properties": {},
* "bbox": [110, 50, 110, 50]
* }
* ],
* "height": 1,
* "leaf": true,
* "minX": 110,
* "minY": 50,
* "maxX": 110,
* "maxY": 50
* }
* tree.fromJSON(exported)
*/
tree.fromJSON = function (json) {
return rbush.prototype.fromJSON.call(this, json);
};
/**
* Converts GeoJSON to {minX, minY, maxX, maxY} schema
*
* @private
* @param {FeatureCollectio|Feature<any>} geojson feature(s) to retrieve BBox from
* @returns {Object} converted to {minX, minY, maxX, maxY}
*/
tree.toBBox = function (geojson) {
var bbox = geojson.bbox ? geojson.bbox : turfBBox(geojson);
return {
minX: bbox[0],
minY: bbox[1],
maxX: bbox[2],
maxY: bbox[3]
};
};
return tree;
};
}, { "@turf/bbox": 5, "@turf/helpers": 6, "@turf/meta": 16, "rbush": 23 }], 21: [function (require, module, exports) {
'use strict';
module.exports = lineclip;
lineclip.polyline = lineclip;
lineclip.polygon = polygonclip;
// Cohen-Sutherland line clippign algorithm, adapted to efficiently
// handle polylines rather than just segments
function lineclip(points, bbox, result) {
var len = points.length,
codeA = bitCode(points[0], bbox),
part = [],
i, a, b, codeB, lastCode;
if (!result) result = [];
for (i = 1; i < len; i++) {
a = points[i - 1];
b = points[i];
codeB = lastCode = bitCode(b, bbox);
while (true) {
if (!(codeA | codeB)) { // accept
part.push(a);
if (codeB !== lastCode) { // segment went outside
part.push(b);
if (i < len - 1) { // start a new line
result.push(part);
part = [];
}
} else if (i === len - 1) {
part.push(b);
}
break;
} else if (codeA & codeB) { // trivial reject
break;
} else if (codeA) { // a outside, intersect with clip edge
a = intersect(a, b, codeA, bbox);
codeA = bitCode(a, bbox);
} else { // b outside
b = intersect(a, b, codeB, bbox);
codeB = bitCode(b, bbox);
}
}
codeA = lastCode;
}
if (part.length) result.push(part);
return result;
}
// Sutherland-Hodgeman polygon clipping algorithm
function polygonclip(points, bbox) {
var result, edge, prev, prevInside, i, p, inside;
// clip against each side of the clip rectangle
for (edge = 1; edge <= 8; edge *= 2) {
result = [];
prev = points[points.length - 1];
prevInside = !(bitCode(prev, bbox) & edge);
for (i = 0; i < points.length; i++) {
p = points[i];
inside = !(bitCode(p, bbox) & edge);
// if segment goes through the clip window, add an intersection
if (inside !== prevInside) result.push(intersect(prev, p, edge, bbox));
if (inside) result.push(p); // add a point if it's inside
prev = p;
prevInside = inside;
}
points = result;
if (!points.length) break;
}
return result;
}
// intersect a segment against one of the 4 lines that make up the bbox
function intersect(a, b, edge, bbox) {
return edge & 8 ? [a[0] + (b[0] - a[0]) * (bbox[3] - a[1]) / (b[1] - a[1]), bbox[3]] : // top
edge & 4 ? [a[0] + (b[0] - a[0]) * (bbox[1] - a[1]) / (b[1] - a[1]), bbox[1]] : // bottom
edge & 2 ? [bbox[2], a[1] + (b[1] - a[1]) * (bbox[2] - a[0]) / (b[0] - a[0])] : // right
edge & 1 ? [bbox[0], a[1] + (b[1] - a[1]) * (bbox[0] - a[0]) / (b[0] - a[0])] : // left
null;
}
// bit code reflects the point position relative to the bbox:
// left mid right
// top 1001 1000 1010
// mid 0001 0000 0010
// bottom 0101 0100 0110
function bitCode(p, bbox) {
var code = 0;
if (p[0] < bbox[0]) code |= 1; // left
else if (p[0] > bbox[2]) code |= 2; // right
if (p[1] < bbox[1]) code |= 4; // bottom
else if (p[1] > bbox[3]) code |= 8; // top
return code;
}
}, {}], 22: [function (require, module, exports) {
'use strict';
module.exports = partialSort;
// Floyd-Rivest selection algorithm:
// Rearrange items so that all items in the [left, k] range are smaller than all items in (k, right];
// The k-th element will have the (k - left + 1)th smallest value in [left, right]
function partialSort(arr, k, left, right, compare) {
left = left || 0;
right = right || (arr.length - 1);
compare = compare || defaultCompare;
while (right > left) {
if (right - left > 600) {
var n = right - left + 1;
var m = k - left + 1;
var z = Math.log(n);
var s = 0.5 * Math.exp(2 * z / 3);
var sd = 0.5 * Math.sqrt(z * s * (n - s) / n) * (m - n / 2 < 0 ? -1 : 1);
var newLeft = Math.max(left, Math.floor(k - m * s / n + sd));
var newRight = Math.min(right, Math.floor(k + (n - m) * s / n + sd));
partialSort(arr, k, newLeft, newRight, compare);
}
var t = arr[k];
var i = left;
var j = right;
swap(arr, left, k);
if (compare(arr[right], t) > 0) swap(arr, left, right);
while (i < j) {
swap(arr, i, j);
i++;
j--;
while (compare(arr[i], t) < 0) i++;
while (compare(arr[j], t) > 0) j--;
}
if (compare(arr[left], t) === 0) swap(arr, left, j);
else {
j++;
swap(arr, j, right);
}
if (j <= k) left = j + 1;
if (k <= j) right = j - 1;
}
}
function swap(arr, i, j) {
var tmp = arr[i];
arr[i] = arr[j];
arr[j] = tmp;
}
function defaultCompare(a, b) {
return a < b ? -1 : a > b ? 1 : 0;
}
}, {}], 23: [function (require, module, exports) {
'use strict';
module.exports = rbush;
var quickselect = require('quickselect');
function rbush(maxEntries, format) {
if (!(this instanceof rbush)) return new rbush(maxEntries, format);
// max entries in a node is 9 by default; min node fill is 40% for best performance
this._maxEntries = Math.max(4, maxEntries || 9);
this._minEntries = Math.max(2, Math.ceil(this._maxEntries * 0.4));
if (format) {
this._initFormat(format);
}
this.clear();
}
rbush.prototype = {
all: function () {
return this._all(this.data, []);
},
search: function (bbox) {
var node = this.data,
result = [],
toBBox = this.toBBox;
if (!intersects(bbox, node)) return result;
var nodesToSearch = [],
i, len, child, childBBox;
while (node) {
for (i = 0, len = node.children.length; i < len; i++) {
child = node.children[i];
childBBox = node.leaf ? toBBox(child) : child;
if (intersects(bbox, childBBox)) {
if (node.leaf) result.push(child);
else if (contains(bbox, childBBox)) this._all(child, result);
else nodesToSearch.push(child);
}
}
node = nodesToSearch.pop();
}
return result;
},
collides: function (bbox) {
var node = this.data,
toBBox = this.toBBox;
if (!intersects(bbox, node)) return false;
var nodesToSearch = [],
i, len, child, childBBox;
while (node) {
for (i = 0, len = node.children.length; i < len; i++) {
child = node.children[i];
childBBox = node.leaf ? toBBox(child) : child;
if (intersects(bbox, childBBox)) {
if (node.leaf || contains(bbox, childBBox)) return true;
nodesToSearch.push(child);
}
}
node = nodesToSearch.pop();
}
return false;
},
load: function (data) {
if (!(data && data.length)) return this;
if (data.length < this._minEntries) {
for (var i = 0, len = data.length; i < len; i++) {
this.insert(data[i]);
}
return this;
}
// recursively build the tree with the given data from stratch using OMT algorithm
var node = this._build(data.slice(), 0, data.length - 1, 0);
if (!this.data.children.length) {
// save as is if tree is empty
this.data = node;
} else if (this.data.height === node.height) {
// split root if trees have the same height
this._splitRoot(this.data, node);
} else {
if (this.data.height < node.height) {
// swap trees if inserted one is bigger
var tmpNode = this.data;
this.data = node;
node = tmpNode;
}
// insert the small tree into the large tree at appropriate level
this._insert(node, this.data.height - node.height - 1, true);
}
return this;
},
insert: function (item) {
if (item) this._insert(item, this.data.height - 1);
return this;
},
clear: function () {
this.data = createNode([]);
return this;
},
remove: function (item, equalsFn) {
if (!item) return this;
var node = this.data,
bbox = this.toBBox(item),
path = [],
indexes = [],
i, parent, index, goingUp;
// depth-first iterative tree traversal
while (node || path.length) {
if (!node) { // go up
node = path.pop();
parent = path[path.length - 1];
i = indexes.pop();
goingUp = true;
}
if (node.leaf) { // check current node
index = findItem(item, node.children, equalsFn);
if (index !== -1) {
// item found, remove the item and condense tree upwards
node.children.splice(index, 1);
path.push(node);
this._condense(path);
return this;
}
}
if (!goingUp && !node.leaf && contains(node, bbox)) { // go down
path.push(node);
indexes.push(i);
i = 0;
parent = node;
node = node.children[0];
} else if (parent) { // go right
i++;
node = parent.children[i];
goingUp = false;
} else node = null; // nothing found
}
return this;
},
toBBox: function (item) { return item; },
compareMinX: compareNodeMinX,
compareMinY: compareNodeMinY,
toJSON: function () { return this.data; },
fromJSON: function (data) {
this.data = data;
return this;
},
_all: function (node, result) {
var nodesToSearch = [];
while (node) {
if (node.leaf) result.push.apply(result, node.children);
else nodesToSearch.push.apply(nodesToSearch, node.children);
node = nodesToSearch.pop();
}
return result;
},
_build: function (items, left, right, height) {
var N = right - left + 1,
M = this._maxEntries,
node;
if (N <= M) {
// reached leaf level; return leaf
node = createNode(items.slice(left, right + 1));
calcBBox(node, this.toBBox);
return node;
}
if (!height) {
// target height of the bulk-loaded tree
height = Math.ceil(Math.log(N) / Math.log(M));
// target number of root entries to maximize storage utilization
M = Math.ceil(N / Math.pow(M, height - 1));
}
node = createNode([]);
node.leaf = false;
node.height = height;
// split the items into M mostly square tiles
var N2 = Math.ceil(N / M),
N1 = N2 * Math.ceil(Math.sqrt(M)),
i, j, right2, right3;
multiSelect(items, left, right, N1, this.compareMinX);
for (i = left; i <= right; i += N1) {
right2 = Math.min(i + N1 - 1, right);
multiSelect(items, i, right2, N2, this.compareMinY);
for (j = i; j <= right2; j += N2) {
right3 = Math.min(j + N2 - 1, right2);
// pack each entry recursively
node.children.push(this._build(items, j, right3, height - 1));
}
}
calcBBox(node, this.toBBox);
return node;
},
_chooseSubtree: function (bbox, node, level, path) {
var i, len, child, targetNode, area, enlargement, minArea, minEnlargement;
while (true) {
path.push(node);
if (node.leaf || path.length - 1 === level) break;
minArea = minEnlargement = Infinity;
for (i = 0, len = node.children.length; i < len; i++) {
child = node.children[i];
area = bboxArea(child);
enlargement = enlargedArea(bbox, child) - area;
// choose entry with the least area enlargement
if (enlargement < minEnlargement) {
minEnlargement = enlargement;
minArea = area < minArea ? area : minArea;
targetNode = child;
} else if (enlargement === minEnlargement) {
// otherwise choose one with the smallest area
if (area < minArea) {
minArea = area;
targetNode = child;
}
}
}
node = targetNode || node.children[0];
}
return node;
},
_insert: function (item, level, isNode) {
var toBBox = this.toBBox,
bbox = isNode ? item : toBBox(item),
insertPath = [];
// find the best node for accommodating the item, saving all nodes along the path too
var node = this._chooseSubtree(bbox, this.data, level, insertPath);
// put the item into the node
node.children.push(item);
extend(node, bbox);
// split on node overflow; propagate upwards if necessary
while (level >= 0) {
if (insertPath[level].children.length > this._maxEntries) {
this._split(insertPath, level);
level--;
} else break;
}
// adjust bboxes along the insertion path
this._adjustParentBBoxes(bbox, insertPath, level);
},
// split overflowed node into two
_split: function (insertPath, level) {
var node = insertPath[level],
M = node.children.length,
m = this._minEntries;
this._chooseSplitAxis(node, m, M);
var splitIndex = this._chooseSplitIndex(node, m, M);
var newNode = createNode(node.children.splice(splitIndex, node.children.length - splitIndex));
newNode.height = node.height;
newNode.leaf = node.leaf;
calcBBox(node, this.toBBox);
calcBBox(newNode, this.toBBox);
if (level) insertPath[level - 1].children.push(newNode);
else this._splitRoot(node, newNode);
},
_splitRoot: function (node, newNode) {
// split root node
this.data = createNode([node, newNode]);
this.data.height = node.height + 1;
this.data.leaf = false;
calcBBox(this.data, this.toBBox);
},
_chooseSplitIndex: function (node, m, M) {
var i, bbox1, bbox2, overlap, area, minOverlap, minArea, index;
minOverlap = minArea = Infinity;
for (i = m; i <= M - m; i++) {
bbox1 = distBBox(node, 0, i, this.toBBox);
bbox2 = distBBox(node, i, M, this.toBBox);
overlap = intersectionArea(bbox1, bbox2);
area = bboxArea(bbox1) + bboxArea(bbox2);
// choose distribution with minimum overlap
if (overlap < minOverlap) {
minOverlap = overlap;
index = i;
minArea = area < minArea ? area : minArea;
} else if (overlap === minOverlap) {
// otherwise choose distribution with minimum area
if (area < minArea) {
minArea = area;
index = i;
}
}
}
return index;
},
// sorts node children by the best axis for split
_chooseSplitAxis: function (node, m, M) {
var compareMinX = node.leaf ? this.compareMinX : compareNodeMinX,
compareMinY = node.leaf ? this.compareMinY : compareNodeMinY,
xMargin = this._allDistMargin(node, m, M, compareMinX),
yMargin = this._allDistMargin(node, m, M, compareMinY);
// if total distributions margin value is minimal for x, sort by minX,
// otherwise it's already sorted by minY
if (xMargin < yMargin) node.children.sort(compareMinX);
},
// total margin of all possible split distributions where each node is at least m full
_allDistMargin: function (node, m, M, compare) {
node.children.sort(compare);
var toBBox = this.toBBox,
leftBBox = distBBox(node, 0, m, toBBox),
rightBBox = distBBox(node, M - m, M, toBBox),
margin = bboxMargin(leftBBox) + bboxMargin(rightBBox),
i, child;
for (i = m; i < M - m; i++) {
child = node.children[i];
extend(leftBBox, node.leaf ? toBBox(child) : child);
margin += bboxMargin(leftBBox);
}
for (i = M - m - 1; i >= m; i--) {
child = node.children[i];
extend(rightBBox, node.leaf ? toBBox(child) : child);
margin += bboxMargin(rightBBox);
}
return margin;
},
_adjustParentBBoxes: function (bbox, path, level) {
// adjust bboxes along the given tree path
for (var i = level; i >= 0; i--) {
extend(path[i], bbox);
}
},
_condense: function (path) {
// go through the path, removing empty nodes and updating bboxes
for (var i = path.length - 1, siblings; i >= 0; i--) {
if (path[i].children.length === 0) {
if (i > 0) {
siblings = path[i - 1].children;
siblings.splice(siblings.indexOf(path[i]), 1);
} else this.clear();
} else calcBBox(path[i], this.toBBox);
}
},
_initFormat: function (format) {
// data format (minX, minY, maxX, maxY accessors)
// uses eval-type function compilation instead of just accepting a toBBox function
// because the algorithms are very sensitive to sorting functions performance,
// so they should be dead simple and without inner calls
var compareArr = ['return a', ' - b', ';'];
this.compareMinX = new Function('a', 'b', compareArr.join(format[0]));
this.compareMinY = new Function('a', 'b', compareArr.join(format[1]));
this.toBBox = new Function('a',
'return {minX: a' + format[0] +
', minY: a' + format[1] +
', maxX: a' + format[2] +
', maxY: a' + format[3] + '};');
}
};
function findItem(item, items, equalsFn) {
if (!equalsFn) return items.indexOf(item);
for (var i = 0; i < items.length; i++) {
if (equalsFn(item, items[i])) return i;
}
return -1;
}
// calculate node's bbox from bboxes of its children
function calcBBox(node, toBBox) {
distBBox(node, 0, node.children.length, toBBox, node);
}
// min bounding rectangle of node children from k to p-1
function distBBox(node, k, p, toBBox, destNode) {
if (!destNode) destNode = createNode(null);
destNode.minX = Infinity;
destNode.minY = Infinity;
destNode.maxX = -Infinity;
destNode.maxY = -Infinity;
for (var i = k, child; i < p; i++) {
child = node.children[i];
extend(destNode, node.leaf ? toBBox(child) : child);
}
return destNode;
}
function extend(a, b) {
a.minX = Math.min(a.minX, b.minX);
a.minY = Math.min(a.minY, b.minY);
a.maxX = Math.max(a.maxX, b.maxX);
a.maxY = Math.max(a.maxY, b.maxY);
return a;
}
function compareNodeMinX(a, b) { return a.minX - b.minX; }
function compareNodeMinY(a, b) { return a.minY - b.minY; }
function bboxArea(a) { return (a.maxX - a.minX) * (a.maxY - a.minY); }
function bboxMargin(a) { return (a.maxX - a.minX) + (a.maxY - a.minY); }
function enlargedArea(a, b) {
return (Math.max(b.maxX, a.maxX) - Math.min(b.minX, a.minX)) *
(Math.max(b.maxY, a.maxY) - Math.min(b.minY, a.minY));
}
function intersectionArea(a, b) {
var minX = Math.max(a.minX, b.minX),
minY = Math.max(a.minY, b.minY),
maxX = Math.min(a.maxX, b.maxX),
maxY = Math.min(a.maxY, b.maxY);
return Math.max(0, maxX - minX) *
Math.max(0, maxY - minY);
}
function contains(a, b) {
return a.minX <= b.minX &&
a.minY <= b.minY &&
b.maxX <= a.maxX &&
b.maxY <= a.maxY;
}
function intersects(a, b) {
return b.minX <= a.maxX &&
b.minY <= a.maxY &&
b.maxX >= a.minX &&
b.maxY >= a.minY;
}
function createNode(children) {
return {
children: children,
height: 1,
leaf: true,
minX: Infinity,
minY: Infinity,
maxX: -Infinity,
maxY: -Infinity
};
}
// sort an array so that items come in groups of n unsorted items, with groups sorted between each other;
// combines selection algorithm with binary divide & conquer approach
function multiSelect(arr, left, right, n, compare) {
var stack = [left, right],
mid;
while (stack.length) {
right = stack.pop();
left = stack.pop();
if (right - left <= n) continue;
mid = left + Math.ceil((right - left) / n / 2) * n;
quickselect(arr, mid, left, right, compare);
stack.push(left, mid, mid, right);
}
}
}, { "quickselect": 22 }]
}, {}, [1])(1)
});
define('Util/turf',[
'ThirdParty/turf',
'ThirdParty/TURFjs/turf-plugin',
], function (
turf,
turf2
) {
//turf.turfTaskProcessor = new Cesium.TaskProcessor('turfWorker', 2);
//turf.turfTaskProcessor.execute = function (methodName,args) {
// return turf.turfTaskProcessor.scheduleTask({
// methodName: methodName,
// args: args
// });
//}
for (var i in turf2) {
if (!turf[i]) {
turf[i] = turf2[i];
}
}
return turf;
});
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e={ASCII:0,Roman:1,Katakana:2,LeadByte:3,TrailByte:4,EscapeStart:5,Escape:6};var r=e.ASCII,i=e.ASCII,t=0,a=false;this.handler=function(l,o){switch(r){default:case e.ASCII:if(o===27){r=e.EscapeStart;return null}if(n(o,0,127)&&o!==14&&o!==15&&o!==27){a=false;return o}if(o===s){return c}a=false;return d(u);case e.Roman:if(o===27){r=e.EscapeStart;return null}if(o===92){a=false;return 165}if(o===126){a=false;return 8254}if(n(o,0,127)&&o!==14&&o!==15&&o!==27&&o!==92&&o!==126){a=false;return o}if(o===s){return c}a=false;return d(u);case e.Katakana:if(o===27){r=e.EscapeStart;return null}if(n(o,33,95)){a=false;return 65377-33+o}if(o===s){return c}a=false;return d(u);case e.LeadByte:if(o===27){r=e.EscapeStart;return null}if(n(o,33,126)){a=false;t=o;r=e.TrailByte;return null}if(o===s){return c}a=false;return d(u);case e.TrailByte:if(o===27){r=e.EscapeStart;return d(u)}if(n(o,33,126)){r=e.LeadByte;var f=(t-33)*94+o-33;var h=y(f,k("jis0208"));if(h===null)return d(u);return h}if(o===s){r=e.LeadByte;l.prepend(o);return d(u)}r=e.LeadByte;return d(u);case e.EscapeStart:if(o===36||o===40){t=o;r=e.Escape;return null}l.prepend(o);a=false;r=i;return d(u);case e.Escape:var p=t;t=0;var v=null;if(p===40&&o===66)v=e.ASCII;if(p===40&&o===74)v=e.Roman;if(p===40&&o===73)v=e.Katakana;if(p===36&&(o===64||o===66))v=e.LeadByte;if(v!==null){r=r=v;var g=a;a=true;return!g?null:d(u)}l.prepend([p,o]);a=false;r=i;return d(u)}}}function q(l){var n=l.fatal;
var u={ASCII:0,Roman:1,jis0208:2};var r=u.ASCII;this.handler=function(l,n){if(n===s&&r!==u.ASCII){l.prepend(n);r=u.ASCII;return[27,40,66]}if(n===s&&r===u.ASCII)return c;if((r===u.ASCII||r===u.Roman)&&(n===14||n===15||n===27)){return h(65533)}if(r===u.ASCII&&o(n))return n;if(r===u.Roman&&(o(n)&&n!==92&&n!==126||(n==165||n==8254))){if(o(n))return n;if(n===165)return 92;if(n===8254)return 126}if(o(n)&&r!==u.ASCII){l.prepend(n);r=u.ASCII;return[27,40,66]}if((n===165||n===8254)&&r!==u.Roman){l.prepend(n);r=u.Roman;return[27,40,74]}if(n===8722)n=65293;var i=x(n,k("jis0208"));if(i===null)return h(n);if(r!==u.jis0208){l.prepend(n);r=u.jis0208;return[27,36,66]}var t=e(i/94)+33;var a=i%94+33;return[t,a]}}b["ISO-2022-JP"]=function(l){return new q(l)};_["ISO-2022-JP"]=function(l){return new N(l)};function z(l){var u=l.fatal;var e=0;this.handler=function(l,r){if(r===s&&e!==0){e=0;return d(u)}if(r===s&&e===0)return c;if(e!==0){var i=e;var t=null;e=0;var o=r<127?64:65;var f=i<160?129:193;if(n(r,64,126)||n(r,128,252))t=(i-f)*188+r-o;if(n(t,8836,10715))return 57344-8836+t;var h=t===null?null:y(t,k("jis0208"));if(h===null&&a(r))l.prepend(r);if(h===null)return d(u);return h}if(a(r)||r===128)return r;if(n(r,161,223))return 65377-161+r;if(n(r,129,159)||n(r,224,252)){e=r;return null}return d(u)}}function H(l){var u=l.fatal;this.handler=function(l,u){if(u===s)return c;if(o(u)||u===128)return u;if(u===165)return 92;if(u===8254)return 126;if(n(u,65377,65439))return u-65377+161;if(u===8722)u=65293;var r=O(u);if(r===null)return h(u);var i=e(r/188);var t=i<31?129:193;var a=r%188;var f=a<63?64:65;return[i+t,a+f]}}b["Shift_JIS"]=function(l){return new H(l)};_["Shift_JIS"]=function(l){return new z(l)};function Q(l){var u=l.fatal;var e=0;this.handler=function(l,r){if(r===s&&e!==0){e=0;return d(u)}if(r===s&&e===0)return c;if(e!==0){var i=e;var t=null;e=0;if(n(r,65,254))t=(i-129)*190+(r-65);var o=t===null?null:y(t,k("euc-kr"));if(t===null&&a(r))l.prepend(r);if(o===null)return d(u);return o}if(a(r))return r;if(n(r,129,254)){e=r;return null}return d(u)}}function V(l){var n=l.fatal;this.handler=function(l,n){if(n===s)return c;if(o(n))return n;var u=x(n,k("euc-kr"));if(u===null)return h(n);var r=e(u/190)+129;var i=u%190+65;return[r,i]}}b["EUC-KR"]=function(l){return new V(l)};_["EUC-KR"]=function(l){return new Q(l)};function W(l,n){var u=l>>8;var e=l&255;if(n)return[u,e];return[e,u]}function X(l,u){var e=u.fatal;var r=null,i=null;this.handler=function(u,t){if(t===s&&(r!==null||i!==null)){return d(e)}if(t===s&&r===null&&i===null){return c}if(r===null){r=t;return null}var a;if(l){a=(r<<8)+t}else{a=(t<<8)+r}r=null;if(i!==null){var o=i;i=null;if(n(a,56320,57343)){return 65536+(o-55296)*1024+(a-56320)}u.prepend(W(a,l));return d(e)}if(n(a,55296,56319)){i=a;return null}if(n(a,56320,57343))return d(e);return a}}function Y(l,u){var e=u.fatal;this.handler=function(u,e){if(e===s)return c;if(n(e,0,65535))return W(e,l);var r=W((e-65536>>10)+55296,l);var i=W((e-65536&1023)+56320,l);return r.concat(i)}}b["UTF-16BE"]=function(l){return new Y(true,l)};_["UTF-16BE"]=function(l){return new X(true,l)};b["UTF-16LE"]=function(l){return new Y(false,l)};_["UTF-16LE"]=function(l){return new X(false,l)};function Z(l){var n=l.fatal;this.handler=function(l,n){if(n===s)return c;if(a(n))return n;return 63360+n-128}}function $(l){var u=l.fatal;this.handler=function(l,u){if(u===s)return c;if(o(u))return u;if(n(u,63360,63487))return u-63360+128;return h(u)}}b["x-user-defined"]=function(l){return new $(l)};_["x-user-defined"]=function(l){return new Z(l)};if(!l["TextEncoder"])l["TextEncoder"]=T;if(!l["TextDecoder"])l["TextDecoder"]=A;if(typeof module!=="undefined"&&module.exports){module.exports={TextEncoder:l["TextEncoder"],TextDecoder:l["TextDecoder"],EncodingIndexes:l["encoding-indexes"]}}})(this||{});
define("ThirdParty/text-encoding/text-encoding.min", function(){});
(function (f) {
if (typeof exports === "object" && typeof module !== "undefined") {
module.exports = f()
}
else if (typeof define === "function" && define.amd) {
define('ThirdParty/shapefile-js-3.3.2/shp',['../text-encoding/text-encoding.min'], f)
}
else {
var g;
if (typeof window !== "undefined") {
g = window
}
else if (typeof global !== "undefined") {
g = global
} else if (typeof self !== "undefined") {
g = self
} else {
g = this
}
g.shp = f()
}
}
)(function () {
var define, module, exports; return (function e(t, n, r) { function s(o, u) { if (!n[o]) { if (!t[o]) { var a = typeof require == "function" && require; if (!u && a) return a(o, !0); if (i) return i(o, !0); var f = new Error("Cannot find module '" + o + "'"); throw f.code = "MODULE_NOT_FOUND", f } var l = n[o] = { exports: {} }; t[o][0].call(l.exports, function (e) { var n = t[o][1][e]; return s(n ? n : e) }, l, l.exports, e, t, n, r) } return n[o].exports } var i = typeof require == "function" && require; for (var o = 0; o < r.length; o++) s(r[o]); return s })({ 1: [function (require, module, exports) {
'use strict';
var Promise = require('lie');
module.exports = binaryAjax;
function binaryAjax(url) {
return new Promise(function (resolve, reject) {
var type = url.slice(-3);
var ajax = new XMLHttpRequest();
ajax.open('GET', url, true);
if (type !== 'prj') {
ajax.responseType = 'arraybuffer';
}
ajax.addEventListener('load', function () {
if (ajax.status > 399||ajax.status==0) {
if (type === 'prj') {
return resolve(false);
} else {
return reject(new Error(ajax.status));
}
}
resolve(ajax.response);
}, false);
ajax.send();
});
}
}, { "lie": 34}], 2: [function (require, module, exports) {
'use strict';
function isClockWise(array) {
var sum = 0;
var i = 1;
var len = array.length;
var prev, cur;
while (i < len) {
prev = cur || array[0];
cur = array[i];
sum += ((cur[0] - prev[0]) * (cur[1] + prev[1]));
i++;
}
return sum > 0;
}
function polyReduce(a, b) {
if (isClockWise(b) || !a.length) {
a.push([b]);
} else {
a[a.length - 1].push(b);
}
return a;
}
ParseShp.prototype.parsePoint = function (data) {
return {
'type': 'Point',
'coordinates': this.parseCoord(data, 0)
};
};
ParseShp.prototype.parseZPoint = function (data) {
var pointXY = this.parsePoint(data);
pointXY.coordinates.push(this.parseCoord(data, 16));
return pointXY;
};
ParseShp.prototype.parsePointArray = function (data, offset, num) {
var out = [];
var done = 0;
while (done < num) {
out.push(this.parseCoord(data, offset));
offset += 16;
done++;
}
return out;
};
ParseShp.prototype.parseZPointArray = function (data, zOffset, num, coordinates) {
var i = 0;
while (i < num) {
coordinates[i].push(data.getFloat64(zOffset, true));
i++;
zOffset += 8;
}
return coordinates;
};
ParseShp.prototype.parseArrayGroup = function (data, offset, partOffset, num, tot) {
var out = [];
var done = 0;
var curNum, nextNum = 0, pointNumber;
while (done < num) {
done++;
partOffset += 4;
curNum = nextNum;
if (done === num) {
nextNum = tot;
} else {
nextNum = data.getInt32(partOffset, true);
}
pointNumber = nextNum - curNum;
if (!pointNumber) {
continue;
}
out.push(this.parsePointArray(data, offset, pointNumber));
offset += (pointNumber << 4);
}
return out;
};
ParseShp.prototype.parseZArrayGroup = function (data, zOffset, num, coordinates) {
var i = 0;
while (i < num) {
coordinates[i] = this.parseZPointArray(data, zOffset, coordinates[i].length, coordinates[i]);
zOffset += (coordinates[i].length << 3);
i++;
}
return coordinates;
};
ParseShp.prototype.parseMultiPoint = function (data) {
var out = {};
var mins = this.parseCoord(data, 0);
var maxs = this.parseCoord(data, 16);
out.bbox = [
mins[0],
mins[1],
maxs[0],
maxs[1]
];
var num = data.getInt32(32, true);
var offset = 36;
if (num === 1) {
out.type = 'Point';
out.coordinates = this.parseCoord(data, offset);
} else {
out.type = 'MultiPoint';
out.coordinates = this.parsePointArray(data, offset, num);
}
return out;
};
ParseShp.prototype.parseZMultiPoint = function (data) {
var geoJson = this.parseMultiPoint(data);
var num;
if (geoJson.type === 'Point') {
geoJson.coordinates.push(data.getFloat64(72, true));
return geoJson;
} else {
num = geoJson.coordinates.length;
}
var zOffset = 56 + (num << 4);
geoJson.coordinates = this.parseZPointArray(data, zOffset, num, geoJson.coordinates);
return geoJson;
};
ParseShp.prototype.parsePolyline = function (data) {
var out = {};
var mins = this.parseCoord(data, 0);
var maxs = this.parseCoord(data, 16);
out.bbox = [
mins[0],
mins[1],
maxs[0],
maxs[1]
];
var numParts = data.getInt32(32, true);
var num = data.getInt32(36, true);
var offset, partOffset;
if (numParts === 1) {
out.type = 'LineString';
offset = 44;
out.coordinates = this.parsePointArray(data, offset, num);
} else {
out.type = 'MultiLineString';
offset = 40 + (numParts << 2);
partOffset = 40;
out.coordinates = this.parseArrayGroup(data, offset, partOffset, numParts, num);
}
return out;
};
ParseShp.prototype.parseZPolyline = function (data) {
var geoJson = this.parsePolyline(data);
var num = geoJson.coordinates.length;
var zOffset = 60 + (num << 4);
if (geoJson.type === 'LineString') {
geoJson.coordinates = this.parseZPointArray(data, zOffset, num, geoJson.coordinates);
return geoJson;
} else {
geoJson.coordinates = this.parseZArrayGroup(data, zOffset, num, geoJson.coordinates);
return geoJson;
}
};
ParseShp.prototype.polyFuncs = function (out) {
if (out.type === 'LineString') {
out.type = 'Polygon';
out.coordinates = [out.coordinates];
return out;
} else {
out.coordinates = out.coordinates.reduce(polyReduce, []);
if (out.coordinates.length === 1) {
out.type = 'Polygon';
out.coordinates = out.coordinates[0];
return out;
} else {
out.type = 'MultiPolygon';
return out;
}
}
};
ParseShp.prototype.parsePolygon = function (data) {
return this.polyFuncs(this.parsePolyline(data));
};
ParseShp.prototype.parseZPolygon = function (data) {
return this.polyFuncs(this.parseZPolyline(data));
};
var shpFuncObj = {
1: 'parsePoint',
3: 'parsePolyline',
5: 'parsePolygon',
8: 'parseMultiPoint',
11: 'parseZPoint',
13: 'parseZPolyline',
15: 'parseZPolygon',
18: 'parseZMultiPoint'
};
function makeParseCoord(trans) {
if (trans) {
return function (data, offset) {
return trans.inverse([data.getFloat64(offset, true), data.getFloat64(offset + 8, true)]);
};
} else {
return function (data, offset) {
return [data.getFloat64(offset, true), data.getFloat64(offset + 8, true)];
};
}
}
function ParseShp(buffer, trans) {
if (!(this instanceof ParseShp)) {
return new ParseShp(buffer, trans);
}
this.buffer = buffer;
this.shpFuncs(trans);
this.rows = this.getRows();
}
ParseShp.prototype.shpFuncs = function (tran) {
var num = this.getShpCode();
if (num > 20) {
num -= 20;
}
if (!(num in shpFuncObj)) {
throw new Error('I don\'t know that shp type');
}
this.parseFunc = this[shpFuncObj[num]];
this.parseCoord = makeParseCoord(tran);
};
ParseShp.prototype.getShpCode = function () {
return this.parseHeader().shpCode;
};
ParseShp.prototype.parseHeader = function () {
var view = new DataView(this.buffer, 0, 100);
return {
length: view.getInt32(6 << 2, false),
version: view.getInt32(7 << 2, true),
shpCode: view.getInt32(8 << 2, true),
bbox: [
view.getFloat64(9 << 2, true),
view.getFloat64(11 << 2, true),
view.getFloat64(13 << 2, true),
view.getFloat64(13 << 2, true)
]
};
};
ParseShp.prototype.getRows = function () {
var offset = 100;
var len = this.buffer.byteLength;
var out = [];
var current;
while (offset < len) {
current = this.getRow(offset);
offset += 8;
offset += current.len;
if (current.type) {
out.push(this.parseFunc(current.data));
}
}
return out;
};
ParseShp.prototype.getRow = function (offset) {
var view = new DataView(this.buffer, offset, 12);
var len = view.getInt32(4, false) << 1;
var data = new DataView(this.buffer, offset + 12, len - 4);
return {
id: view.getInt32(0, false),
len: len,
data: data,
type: view.getInt32(8, true)
};
};
module.exports = function (buffer, trans) {
return new ParseShp(buffer, trans).rows;
};
}, {}], 3: [function (require, module, exports) {
'use strict';
module.exports = toArrayBuffer;
function toArrayBuffer(buffer) {
var arrayBuffer = new ArrayBuffer(buffer.length);
var view = new Uint8Array(arrayBuffer);
var i = -1;
var len = buffer.length;
while (++i < len) {
view[i] = buffer[i];
}
return arrayBuffer;
}
}, {}], 4: [function (require, module, exports) {
'use strict';
var JSZip = require('jszip');
module.exports = function (buffer) {
var zip = new JSZip(buffer);
var files = zip.file(/.+/);
var out = {};
files.forEach(function (a) {
if (a.name.slice(-3).toLowerCase() === 'shp' || a.name.slice(-3).toLowerCase() === 'dbf') {
out[a.name] = a.asText();
out[a.name] = a.asArrayBuffer();
}
else {
out[a.name] = a.asText();
}
});
return out;
};
}, { "jszip": 19}], 5: [function (require, module, exports) {
'use strict'
exports.toByteArray = toByteArray
exports.fromByteArray = fromByteArray
var lookup = []
var revLookup = []
var Arr = typeof Uint8Array !== 'undefined' ? Uint8Array : Array
function init() {
var i
var code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
var len = code.length
for (i = 0; i < len; i++) {
lookup[i] = code[i]
}
for (i = 0; i < len; ++i) {
revLookup[code.charCodeAt(i)] = i
}
revLookup['-'.charCodeAt(0)] = 62
revLookup['_'.charCodeAt(0)] = 63
}
init()
function toByteArray(b64) {
var i, j, l, tmp, placeHolders, arr
var len = b64.length
if (len % 4 > 0) {
throw new Error('Invalid string. Length must be a multiple of 4')
}
// the number of equal signs (place holders)
// if there are two placeholders, than the two characters before it
// represent one byte
// if there is only one, then the three characters before it represent 2 bytes
// this is just a cheap hack to not do indexOf twice
placeHolders = b64[len - 2] === '=' ? 2 : b64[len - 1] === '=' ? 1 : 0
// base64 is 4/3 + up to two characters of the original data
arr = new Arr(len * 3 / 4 - placeHolders)
// if there are placeholders, only get up to the last complete 4 chars
l = placeHolders > 0 ? len - 4 : len
var L = 0
for (i = 0, j = 0; i < l; i += 4, j += 3) {
tmp = (revLookup[b64.charCodeAt(i)] << 18) | (revLookup[b64.charCodeAt(i + 1)] << 12) | (revLookup[b64.charCodeAt(i + 2)] << 6) | revLookup[b64.charCodeAt(i + 3)]
arr[L++] = (tmp & 0xFF0000) >> 16
arr[L++] = (tmp & 0xFF00) >> 8
arr[L++] = tmp & 0xFF
}
if (placeHolders === 2) {
tmp = (revLookup[b64.charCodeAt(i)] << 2) | (revLookup[b64.charCodeAt(i + 1)] >> 4)
arr[L++] = tmp & 0xFF
} else if (placeHolders === 1) {
tmp = (revLookup[b64.charCodeAt(i)] << 10) | (revLookup[b64.charCodeAt(i + 1)] << 4) | (revLookup[b64.charCodeAt(i + 2)] >> 2)
arr[L++] = (tmp >> 8) & 0xFF
arr[L++] = tmp & 0xFF
}
return arr
}
function tripletToBase64(num) {
return lookup[num >> 18 & 0x3F] + lookup[num >> 12 & 0x3F] + lookup[num >> 6 & 0x3F] + lookup[num & 0x3F]
}
function encodeChunk(uint8, start, end) {
var tmp
var output = []
for (var i = start; i < end; i += 3) {
tmp = (uint8[i] << 16) + (uint8[i + 1] << 8) + (uint8[i + 2])
output.push(tripletToBase64(tmp))
}
return output.join('')
}
function fromByteArray(uint8) {
var tmp
var len = uint8.length
var extraBytes = len % 3 // if we have 1 byte left, pad 2 bytes
var output = ''
var parts = []
var maxChunkLength = 16383 // must be multiple of 3
// go through the array every three bytes, we'll deal with trailing stuff later
for (var i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) {
parts.push(encodeChunk(uint8, i, (i + maxChunkLength) > len2 ? len2 : (i + maxChunkLength)))
}
// pad the end with zeros, but make sure to not forget the extra bytes
if (extraBytes === 1) {
tmp = uint8[len - 1]
output += lookup[tmp >> 2]
output += lookup[(tmp << 4) & 0x3F]
output += '=='
} else if (extraBytes === 2) {
tmp = (uint8[len - 2] << 8) + (uint8[len - 1])
output += lookup[tmp >> 10]
output += lookup[(tmp >> 4) & 0x3F]
output += lookup[(tmp << 2) & 0x3F]
output += '='
}
parts.push(output)
return parts.join('')
}
}, {}], 6: [function (require, module, exports) {
(function (global) {
/*!
* The buffer module from node.js, for the browser.
*
* @author Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
* @license MIT
*/
/* eslint-disable no-proto */
'use strict'
var base64 = require('base64-js')
var ieee754 = require('ieee754')
var isArray = require('isarray')
exports.Buffer = Buffer
exports.SlowBuffer = SlowBuffer
exports.INSPECT_MAX_BYTES = 50
Buffer.poolSize = 8192 // not used by this implementation
var rootParent = {}
/**
* If `Buffer.TYPED_ARRAY_SUPPORT`:
* === true Use Uint8Array implementation (fastest)
* === false Use Object implementation (most compatible, even IE6)
*
* Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+,
* Opera 11.6+, iOS 4.2+.
*
* Due to various browser bugs, sometimes the Object implementation will be used even
* when the browser supports typed arrays.
*
* Note:
*
* - Firefox 4-29 lacks support for adding new properties to `Uint8Array` instances,
* See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438.
*
* - Chrome 9-10 is missing the `TypedArray.prototype.subarray` function.
*
* - IE10 has a broken `TypedArray.prototype.subarray` function which returns arrays of
* incorrect length in some situations.
* We detect these buggy browsers and set `Buffer.TYPED_ARRAY_SUPPORT` to `false` so they
* get the Object implementation, which is slower but behaves correctly.
*/
Buffer.TYPED_ARRAY_SUPPORT = global.TYPED_ARRAY_SUPPORT !== undefined
? global.TYPED_ARRAY_SUPPORT
: typedArraySupport()
function typedArraySupport() {
try {
var arr = new Uint8Array(1)
arr.foo = function () { return 42 }
return arr.foo() === 42 && // typed array instances can be augmented
typeof arr.subarray === 'function' && // chrome 9-10 lack `subarray`
arr.subarray(1, 1).byteLength === 0 // ie10 has broken `subarray`
} catch (e) {
return false
}
}
function kMaxLength() {
return Buffer.TYPED_ARRAY_SUPPORT
? 0x7fffffff
: 0x3fffffff
}
/**
* The Buffer constructor returns instances of `Uint8Array` that have their
* prototype changed to `Buffer.prototype`. Furthermore, `Buffer` is a subclass of
* `Uint8Array`, so the returned instances will have all the node `Buffer` methods
* and the `Uint8Array` methods. Square bracket notation works as expected -- it
* returns a single octet.
*
* The `Uint8Array` prototype remains unmodified.
*/
function Buffer(arg) {
if (!(this instanceof Buffer)) {
// Avoid going through an ArgumentsAdaptorTrampoline in the common case.
if (arguments.length > 1) return new Buffer(arg, arguments[1])
return new Buffer(arg)
}
if (!Buffer.TYPED_ARRAY_SUPPORT) {
this.length = 0
this.parent = undefined
}
// Common case.
if (typeof arg === 'number') {
return fromNumber(this, arg)
}
// Slightly less common case.
if (typeof arg === 'string') {
return fromString(this, arg, arguments.length > 1 ? arguments[1] : 'utf8')
}
// Unusual.
return fromObject(this, arg)
}
// TODO: Legacy, not needed anymore. Remove in next major version.
Buffer._augment = function (arr) {
arr.__proto__ = Buffer.prototype
return arr
}
function fromNumber(that, length) {
that = allocate(that, length < 0 ? 0 : checked(length) | 0)
if (!Buffer.TYPED_ARRAY_SUPPORT) {
for (var i = 0; i < length; i++) {
that[i] = 0
}
}
return that
}
function fromString(that, string, encoding) {
if (typeof encoding !== 'string' || encoding === '') encoding = 'utf8'
// Assumption: byteLength() return value is always < kMaxLength.
var length = byteLength(string, encoding) | 0
that = allocate(that, length)
that.write(string, encoding)
return that
}
function fromObject(that, object) {
if (Buffer.isBuffer(object)) return fromBuffer(that, object)
if (isArray(object)) return fromArray(that, object)
if (object == null) {
throw new TypeError('must start with number, buffer, array or string')
}
if (typeof ArrayBuffer !== 'undefined') {
if (object.buffer instanceof ArrayBuffer) {
return fromTypedArray(that, object)
}
if (object instanceof ArrayBuffer) {
return fromArrayBuffer(that, object)
}
}
if (object.length) return fromArrayLike(that, object)
return fromJsonObject(that, object)
}
function fromBuffer(that, buffer) {
var length = checked(buffer.length) | 0
that = allocate(that, length)
buffer.copy(that, 0, 0, length)
return that
}
function fromArray(that, array) {
var length = checked(array.length) | 0
that = allocate(that, length)
for (var i = 0; i < length; i += 1) {
that[i] = array[i] & 255
}
return that
}
// Duplicate of fromArray() to keep fromArray() monomorphic.
function fromTypedArray(that, array) {
var length = checked(array.length) | 0
that = allocate(that, length)
// Truncating the elements is probably not what people expect from typed
// arrays with BYTES_PER_ELEMENT > 1 but it's compatible with the behavior
// of the old Buffer constructor.
for (var i = 0; i < length; i += 1) {
that[i] = array[i] & 255
}
return that
}
function fromArrayBuffer(that, array) {
array.byteLength // this throws if `array` is not a valid ArrayBuffer
if (Buffer.TYPED_ARRAY_SUPPORT) {
// Return an augmented `Uint8Array` instance, for best performance
that = new Uint8Array(array)
that.__proto__ = Buffer.prototype
} else {
// Fallback: Return an object instance of the Buffer class
that = fromTypedArray(that, new Uint8Array(array))
}
return that
}
function fromArrayLike(that, array) {
var length = checked(array.length) | 0
that = allocate(that, length)
for (var i = 0; i < length; i += 1) {
that[i] = array[i] & 255
}
return that
}
// Deserialize { type: 'Buffer', data: [1,2,3,...] } into a Buffer object.
// Returns a zero-length buffer for inputs that don't conform to the spec.
function fromJsonObject(that, object) {
var array
var length = 0
if (object.type === 'Buffer' && isArray(object.data)) {
array = object.data
length = checked(array.length) | 0
}
that = allocate(that, length)
for (var i = 0; i < length; i += 1) {
that[i] = array[i] & 255
}
return that
}
if (Buffer.TYPED_ARRAY_SUPPORT) {
Buffer.prototype.__proto__ = Uint8Array.prototype
Buffer.__proto__ = Uint8Array
if (typeof Symbol !== 'undefined' && Symbol.species &&
Buffer[Symbol.species] === Buffer) {
// Fix subarray() in ES2016. See: https://github.com/feross/buffer/pull/97
Object.defineProperty(Buffer, Symbol.species, {
value: null,
configurable: true
})
}
} else {
// pre-set for values that may exist in the future
Buffer.prototype.length = undefined
Buffer.prototype.parent = undefined
}
function allocate(that, length) {
if (Buffer.TYPED_ARRAY_SUPPORT) {
// Return an augmented `Uint8Array` instance, for best performance
that = new Uint8Array(length)
that.__proto__ = Buffer.prototype
} else {
// Fallback: Return an object instance of the Buffer class
that.length = length
}
var fromPool = length !== 0 && length <= Buffer.poolSize >>> 1
if (fromPool) that.parent = rootParent
return that
}
function checked(length) {
// Note: cannot use `length < kMaxLength` here because that fails when
// length is NaN (which is otherwise coerced to zero.)
if (length >= kMaxLength()) {
throw new RangeError('Attempt to allocate Buffer larger than maximum ' +
'size: 0x' + kMaxLength().toString(16) + ' bytes')
}
return length | 0
}
function SlowBuffer(subject, encoding) {
if (!(this instanceof SlowBuffer)) return new SlowBuffer(subject, encoding)
var buf = new Buffer(subject, encoding)
delete buf.parent
return buf
}
Buffer.isBuffer = function isBuffer(b) {
return !!(b != null && b._isBuffer)
}
Buffer.compare = function compare(a, b) {
if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {
throw new TypeError('Arguments must be Buffers')
}
if (a === b) return 0
var x = a.length
var y = b.length
var i = 0
var len = Math.min(x, y)
while (i < len) {
if (a[i] !== b[i]) break
++i
}
if (i !== len) {
x = a[i]
y = b[i]
}
if (x < y) return -1
if (y < x) return 1
return 0
}
Buffer.isEncoding = function isEncoding(encoding) {
switch (String(encoding).toLowerCase()) {
case 'hex':
case 'utf8':
case 'utf-8':
case 'ascii':
case 'binary':
case 'base64':
case 'raw':
case 'ucs2':
case 'ucs-2':
case 'utf16le':
case 'utf-16le':
return true
default:
return false
}
}
Buffer.concat = function concat(list, length) {
if (!isArray(list)) throw new TypeError('list argument must be an Array of Buffers.')
if (list.length === 0) {
return new Buffer(0)
}
var i
if (length === undefined) {
length = 0
for (i = 0; i < list.length; i++) {
length += list[i].length
}
}
var buf = new Buffer(length)
var pos = 0
for (i = 0; i < list.length; i++) {
var item = list[i]
item.copy(buf, pos)
pos += item.length
}
return buf
}
function byteLength(string, encoding) {
if (typeof string !== 'string') string = '' + string
var len = string.length
if (len === 0) return 0
// Use a for loop to avoid recursion
var loweredCase = false
for (; ; ) {
switch (encoding) {
case 'ascii':
case 'binary':
// Deprecated
case 'raw':
case 'raws':
return len
case 'utf8':
case 'utf-8':
return utf8ToBytes(string).length
case 'ucs2':
case 'ucs-2':
case 'utf16le':
case 'utf-16le':
return len * 2
case 'hex':
return len >>> 1
case 'base64':
return base64ToBytes(string).length
default:
if (loweredCase) return utf8ToBytes(string).length // assume utf8
encoding = ('' + encoding).toLowerCase()
loweredCase = true
}
}
}
Buffer.byteLength = byteLength
function slowToString(encoding, start, end) {
var loweredCase = false
start = start | 0
end = end === undefined || end === Infinity ? this.length : end | 0
if (!encoding) encoding = 'utf8'
if (start < 0) start = 0
if (end > this.length) end = this.length
if (end <= start) return ''
while (true) {
switch (encoding) {
case 'hex':
return hexSlice(this, start, end)
case 'utf8':
case 'utf-8':
return utf8Slice(this, start, end)
case 'ascii':
return asciiSlice(this, start, end)
case 'binary':
return binarySlice(this, start, end)
case 'base64':
return base64Slice(this, start, end)
case 'ucs2':
case 'ucs-2':
case 'utf16le':
case 'utf-16le':
return utf16leSlice(this, start, end)
default:
if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
encoding = (encoding + '').toLowerCase()
loweredCase = true
}
}
}
// The property is used by `Buffer.isBuffer` and `is-buffer` (in Safari 5-7) to detect
// Buffer instances.
Buffer.prototype._isBuffer = true
Buffer.prototype.toString = function toString() {
var length = this.length | 0
if (length === 0) return ''
if (arguments.length === 0) return utf8Slice(this, 0, length)
return slowToString.apply(this, arguments)
}
Buffer.prototype.equals = function equals(b) {
if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer')
if (this === b) return true
return Buffer.compare(this, b) === 0
}
Buffer.prototype.inspect = function inspect() {
var str = ''
var max = exports.INSPECT_MAX_BYTES
if (this.length > 0) {
str = this.toString('hex', 0, max).match(/.{2}/g).join(' ')
if (this.length > max) str += ' ... '
}
return '<Buffer ' + str + '>'
}
Buffer.prototype.compare = function compare(b) {
if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer')
if (this === b) return 0
return Buffer.compare(this, b)
}
Buffer.prototype.indexOf = function indexOf(val, byteOffset) {
if (byteOffset > 0x7fffffff) byteOffset = 0x7fffffff
else if (byteOffset < -0x80000000) byteOffset = -0x80000000
byteOffset >>= 0
if (this.length === 0) return -1
if (byteOffset >= this.length) return -1
// Negative offsets start from the end of the buffer
if (byteOffset < 0) byteOffset = Math.max(this.length + byteOffset, 0)
if (typeof val === 'string') {
if (val.length === 0) return -1 // special case: looking for empty string always fails
return String.prototype.indexOf.call(this, val, byteOffset)
}
if (Buffer.isBuffer(val)) {
return arrayIndexOf(this, val, byteOffset)
}
if (typeof val === 'number') {
if (Buffer.TYPED_ARRAY_SUPPORT && Uint8Array.prototype.indexOf === 'function') {
return Uint8Array.prototype.indexOf.call(this, val, byteOffset)
}
return arrayIndexOf(this, [val], byteOffset)
}
function arrayIndexOf(arr, val, byteOffset) {
var foundIndex = -1
for (var i = 0; byteOffset + i < arr.length; i++) {
if (arr[byteOffset + i] === val[foundIndex === -1 ? 0 : i - foundIndex]) {
if (foundIndex === -1) foundIndex = i
if (i - foundIndex + 1 === val.length) return byteOffset + foundIndex
} else {
foundIndex = -1
}
}
return -1
}
throw new TypeError('val must be string, number or Buffer')
}
function hexWrite(buf, string, offset, length) {
offset = Number(offset) || 0
var remaining = buf.length - offset
if (!length) {
length = remaining
} else {
length = Number(length)
if (length > remaining) {
length = remaining
}
}
// must be an even number of digits
var strLen = string.length
if (strLen % 2 !== 0) throw new Error('Invalid hex string')
if (length > strLen / 2) {
length = strLen / 2
}
for (var i = 0; i < length; i++) {
var parsed = parseInt(string.substr(i * 2, 2), 16)
if (isNaN(parsed)) throw new Error('Invalid hex string')
buf[offset + i] = parsed
}
return i
}
function utf8Write(buf, string, offset, length) {
return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length)
}
function asciiWrite(buf, string, offset, length) {
return blitBuffer(asciiToBytes(string), buf, offset, length)
}
function binaryWrite(buf, string, offset, length) {
return asciiWrite(buf, string, offset, length)
}
function base64Write(buf, string, offset, length) {
return blitBuffer(base64ToBytes(string), buf, offset, length)
}
function ucs2Write(buf, string, offset, length) {
return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length)
}
Buffer.prototype.write = function write(string, offset, length, encoding) {
// Buffer#write(string)
if (offset === undefined) {
encoding = 'utf8'
length = this.length
offset = 0
// Buffer#write(string, encoding)
} else if (length === undefined && typeof offset === 'string') {
encoding = offset
length = this.length
offset = 0
// Buffer#write(string, offset[, length][, encoding])
} else if (isFinite(offset)) {
offset = offset | 0
if (isFinite(length)) {
length = length | 0
if (encoding === undefined) encoding = 'utf8'
} else {
encoding = length
length = undefined
}
// legacy write(string, encoding, offset, length) - remove in v0.13
} else {
var swap = encoding
encoding = offset
offset = length | 0
length = swap
}
var remaining = this.length - offset
if (length === undefined || length > remaining) length = remaining
if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) {
throw new RangeError('attempt to write outside buffer bounds')
}
if (!encoding) encoding = 'utf8'
var loweredCase = false
for (; ; ) {
switch (encoding) {
case 'hex':
return hexWrite(this, string, offset, length)
case 'utf8':
case 'utf-8':
return utf8Write(this, string, offset, length)
case 'ascii':
return asciiWrite(this, string, offset, length)
case 'binary':
return binaryWrite(this, string, offset, length)
case 'base64':
// Warning: maxLength not taken into account in base64Write
return base64Write(this, string, offset, length)
case 'ucs2':
case 'ucs-2':
case 'utf16le':
case 'utf-16le':
return ucs2Write(this, string, offset, length)
default:
if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
encoding = ('' + encoding).toLowerCase()
loweredCase = true
}
}
}
Buffer.prototype.toJSON = function toJSON() {
return {
type: 'Buffer',
data: Array.prototype.slice.call(this._arr || this, 0)
}
}
function base64Slice(buf, start, end) {
if (start === 0 && end === buf.length) {
return base64.fromByteArray(buf)
} else {
return base64.fromByteArray(buf.slice(start, end))
}
}
function utf8Slice(buf, start, end) {
end = Math.min(buf.length, end)
var res = []
var i = start
while (i < end) {
var firstByte = buf[i]
var codePoint = null
var bytesPerSequence = (firstByte > 0xEF) ? 4
: (firstByte > 0xDF) ? 3
: (firstByte > 0xBF) ? 2
: 1
if (i + bytesPerSequence <= end) {
var secondByte, thirdByte, fourthByte, tempCodePoint
switch (bytesPerSequence) {
case 1:
if (firstByte < 0x80) {
codePoint = firstByte
}
break
case 2:
secondByte = buf[i + 1]
if ((secondByte & 0xC0) === 0x80) {
tempCodePoint = (firstByte & 0x1F) << 0x6 | (secondByte & 0x3F)
if (tempCodePoint > 0x7F) {
codePoint = tempCodePoint
}
}
break
case 3:
secondByte = buf[i + 1]
thirdByte = buf[i + 2]
if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) {
tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | (thirdByte & 0x3F)
if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) {
codePoint = tempCodePoint
}
}
break
case 4:
secondByte = buf[i + 1]
thirdByte = buf[i + 2]
fourthByte = buf[i + 3]
if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) {
tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | (fourthByte & 0x3F)
if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) {
codePoint = tempCodePoint
}
}
}
}
if (codePoint === null) {
// we did not generate a valid codePoint so insert a
// replacement char (U+FFFD) and advance only 1 byte
codePoint = 0xFFFD
bytesPerSequence = 1
} else if (codePoint > 0xFFFF) {
// encode to utf16 (surrogate pair dance)
codePoint -= 0x10000
res.push(codePoint >>> 10 & 0x3FF | 0xD800)
codePoint = 0xDC00 | codePoint & 0x3FF
}
res.push(codePoint)
i += bytesPerSequence
}
return decodeCodePointsArray(res)
}
// Based on http://stackoverflow.com/a/22747272/680742, the browser with
// the lowest limit is Chrome, with 0x10000 args.
// We go 1 magnitude less, for safety
var MAX_ARGUMENTS_LENGTH = 0x1000
function decodeCodePointsArray(codePoints) {
var len = codePoints.length
if (len <= MAX_ARGUMENTS_LENGTH) {
return String.fromCharCode.apply(String, codePoints) // avoid extra slice()
}
// Decode in chunks to avoid "call stack size exceeded".
var res = ''
var i = 0
while (i < len) {
res += String.fromCharCode.apply(
String,
codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH)
)
}
return res
}
function asciiSlice(buf, start, end) {
var ret = ''
end = Math.min(buf.length, end)
for (var i = start; i < end; i++) {
ret += String.fromCharCode(buf[i] & 0x7F)
}
return ret
}
function binarySlice(buf, start, end) {
var ret = ''
end = Math.min(buf.length, end)
for (var i = start; i < end; i++) {
ret += String.fromCharCode(buf[i])
}
return ret
}
function hexSlice(buf, start, end) {
var len = buf.length
if (!start || start < 0) start = 0
if (!end || end < 0 || end > len) end = len
var out = ''
for (var i = start; i < end; i++) {
out += toHex(buf[i])
}
return out
}
function utf16leSlice(buf, start, end) {
var bytes = buf.slice(start, end)
var res = ''
for (var i = 0; i < bytes.length; i += 2) {
res += String.fromCharCode(bytes[i] + bytes[i + 1] * 256)
}
return res
}
Buffer.prototype.slice = function slice(start, end) {
var len = this.length
start = ~ ~start
end = end === undefined ? len : ~ ~end
if (start < 0) {
start += len
if (start < 0) start = 0
} else if (start > len) {
start = len
}
if (end < 0) {
end += len
if (end < 0) end = 0
} else if (end > len) {
end = len
}
if (end < start) end = start
var newBuf
if (Buffer.TYPED_ARRAY_SUPPORT) {
newBuf = this.subarray(start, end)
newBuf.__proto__ = Buffer.prototype
} else {
var sliceLen = end - start
newBuf = new Buffer(sliceLen, undefined)
for (var i = 0; i < sliceLen; i++) {
newBuf[i] = this[i + start]
}
}
if (newBuf.length) newBuf.parent = this.parent || this
return newBuf
}
/*
* Need to make sure that buffer isn't trying to write out of bounds.
*/
function checkOffset(offset, ext, length) {
if ((offset % 1) !== 0 || offset < 0) throw new RangeError('offset is not uint')
if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length')
}
Buffer.prototype.readUIntLE = function readUIntLE(offset, byteLength, noAssert) {
offset = offset | 0
byteLength = byteLength | 0
if (!noAssert) checkOffset(offset, byteLength, this.length)
var val = this[offset]
var mul = 1
var i = 0
while (++i < byteLength && (mul *= 0x100)) {
val += this[offset + i] * mul
}
return val
}
Buffer.prototype.readUIntBE = function readUIntBE(offset, byteLength, noAssert) {
offset = offset | 0
byteLength = byteLength | 0
if (!noAssert) {
checkOffset(offset, byteLength, this.length)
}
var val = this[offset + --byteLength]
var mul = 1
while (byteLength > 0 && (mul *= 0x100)) {
val += this[offset + --byteLength] * mul
}
return val
}
Buffer.prototype.readUInt8 = function readUInt8(offset, noAssert) {
if (!noAssert) checkOffset(offset, 1, this.length)
return this[offset]
}
Buffer.prototype.readUInt16LE = function readUInt16LE(offset, noAssert) {
if (!noAssert) checkOffset(offset, 2, this.length)
return this[offset] | (this[offset + 1] << 8)
}
Buffer.prototype.readUInt16BE = function readUInt16BE(offset, noAssert) {
if (!noAssert) checkOffset(offset, 2, this.length)
return (this[offset] << 8) | this[offset + 1]
}
Buffer.prototype.readUInt32LE = function readUInt32LE(offset, noAssert) {
if (!noAssert) checkOffset(offset, 4, this.length)
return ((this[offset]) |
(this[offset + 1] << 8) |
(this[offset + 2] << 16)) +
(this[offset + 3] * 0x1000000)
}
Buffer.prototype.readUInt32BE = function readUInt32BE(offset, noAssert) {
if (!noAssert) checkOffset(offset, 4, this.length)
return (this[offset] * 0x1000000) +
((this[offset + 1] << 16) |
(this[offset + 2] << 8) |
this[offset + 3])
}
Buffer.prototype.readIntLE = function readIntLE(offset, byteLength, noAssert) {
offset = offset | 0
byteLength = byteLength | 0
if (!noAssert) checkOffset(offset, byteLength, this.length)
var val = this[offset]
var mul = 1
var i = 0
while (++i < byteLength && (mul *= 0x100)) {
val += this[offset + i] * mul
}
mul *= 0x80
if (val >= mul) val -= Math.pow(2, 8 * byteLength)
return val
}
Buffer.prototype.readIntBE = function readIntBE(offset, byteLength, noAssert) {
offset = offset | 0
byteLength = byteLength | 0
if (!noAssert) checkOffset(offset, byteLength, this.length)
var i = byteLength
var mul = 1
var val = this[offset + --i]
while (i > 0 && (mul *= 0x100)) {
val += this[offset + --i] * mul
}
mul *= 0x80
if (val >= mul) val -= Math.pow(2, 8 * byteLength)
return val
}
Buffer.prototype.readInt8 = function readInt8(offset, noAssert) {
if (!noAssert) checkOffset(offset, 1, this.length)
if (!(this[offset] & 0x80)) return (this[offset])
return ((0xff - this[offset] + 1) * -1)
}
Buffer.prototype.readInt16LE = function readInt16LE(offset, noAssert) {
if (!noAssert) checkOffset(offset, 2, this.length)
var val = this[offset] | (this[offset + 1] << 8)
return (val & 0x8000) ? val | 0xFFFF0000 : val
}
Buffer.prototype.readInt16BE = function readInt16BE(offset, noAssert) {
if (!noAssert) checkOffset(offset, 2, this.length)
var val = this[offset + 1] | (this[offset] << 8)
return (val & 0x8000) ? val | 0xFFFF0000 : val
}
Buffer.prototype.readInt32LE = function readInt32LE(offset, noAssert) {
if (!noAssert) checkOffset(offset, 4, this.length)
return (this[offset]) |
(this[offset + 1] << 8) |
(this[offset + 2] << 16) |
(this[offset + 3] << 24)
}
Buffer.prototype.readInt32BE = function readInt32BE(offset, noAssert) {
if (!noAssert) checkOffset(offset, 4, this.length)
return (this[offset] << 24) |
(this[offset + 1] << 16) |
(this[offset + 2] << 8) |
(this[offset + 3])
}
Buffer.prototype.readFloatLE = function readFloatLE(offset, noAssert) {
if (!noAssert) checkOffset(offset, 4, this.length)
return ieee754.read(this, offset, true, 23, 4)
}
Buffer.prototype.readFloatBE = function readFloatBE(offset, noAssert) {
if (!noAssert) checkOffset(offset, 4, this.length)
return ieee754.read(this, offset, false, 23, 4)
}
Buffer.prototype.readDoubleLE = function readDoubleLE(offset, noAssert) {
if (!noAssert) checkOffset(offset, 8, this.length)
return ieee754.read(this, offset, true, 52, 8)
}
Buffer.prototype.readDoubleBE = function readDoubleBE(offset, noAssert) {
if (!noAssert) checkOffset(offset, 8, this.length)
return ieee754.read(this, offset, false, 52, 8)
}
function checkInt(buf, value, offset, ext, max, min) {
if (!Buffer.isBuffer(buf)) throw new TypeError('buffer must be a Buffer instance')
if (value > max || value < min) throw new RangeError('value is out of bounds')
if (offset + ext > buf.length) throw new RangeError('index out of range')
}
Buffer.prototype.writeUIntLE = function writeUIntLE(value, offset, byteLength, noAssert) {
value = +value
offset = offset | 0
byteLength = byteLength | 0
if (!noAssert) checkInt(this, value, offset, byteLength, Math.pow(2, 8 * byteLength), 0)
var mul = 1
var i = 0
this[offset] = value & 0xFF
while (++i < byteLength && (mul *= 0x100)) {
this[offset + i] = (value / mul) & 0xFF
}
return offset + byteLength
}
Buffer.prototype.writeUIntBE = function writeUIntBE(value, offset, byteLength, noAssert) {
value = +value
offset = offset | 0
byteLength = byteLength | 0
if (!noAssert) checkInt(this, value, offset, byteLength, Math.pow(2, 8 * byteLength), 0)
var i = byteLength - 1
var mul = 1
this[offset + i] = value & 0xFF
while (--i >= 0 && (mul *= 0x100)) {
this[offset + i] = (value / mul) & 0xFF
}
return offset + byteLength
}
Buffer.prototype.writeUInt8 = function writeUInt8(value, offset, noAssert) {
value = +value
offset = offset | 0
if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0)
if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value)
this[offset] = (value & 0xff)
return offset + 1
}
function objectWriteUInt16(buf, value, offset, littleEndian) {
if (value < 0) value = 0xffff + value + 1
for (var i = 0, j = Math.min(buf.length - offset, 2); i < j; i++) {
buf[offset + i] = (value & (0xff << (8 * (littleEndian ? i : 1 - i)))) >>>
(littleEndian ? i : 1 - i) * 8
}
}
Buffer.prototype.writeUInt16LE = function writeUInt16LE(value, offset, noAssert) {
value = +value
offset = offset | 0
if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
if (Buffer.TYPED_ARRAY_SUPPORT) {
this[offset] = (value & 0xff)
this[offset + 1] = (value >>> 8)
} else {
objectWriteUInt16(this, value, offset, true)
}
return offset + 2
}
Buffer.prototype.writeUInt16BE = function writeUInt16BE(value, offset, noAssert) {
value = +value
offset = offset | 0
if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
if (Buffer.TYPED_ARRAY_SUPPORT) {
this[offset] = (value >>> 8)
this[offset + 1] = (value & 0xff)
} else {
objectWriteUInt16(this, value, offset, false)
}
return offset + 2
}
function objectWriteUInt32(buf, value, offset, littleEndian) {
if (value < 0) value = 0xffffffff + value + 1
for (var i = 0, j = Math.min(buf.length - offset, 4); i < j; i++) {
buf[offset + i] = (value >>> (littleEndian ? i : 3 - i) * 8) & 0xff
}
}
Buffer.prototype.writeUInt32LE = function writeUInt32LE(value, offset, noAssert) {
value = +value
offset = offset | 0
if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
if (Buffer.TYPED_ARRAY_SUPPORT) {
this[offset + 3] = (value >>> 24)
this[offset + 2] = (value >>> 16)
this[offset + 1] = (value >>> 8)
this[offset] = (value & 0xff)
} else {
objectWriteUInt32(this, value, offset, true)
}
return offset + 4
}
Buffer.prototype.writeUInt32BE = function writeUInt32BE(value, offset, noAssert) {
value = +value
offset = offset | 0
if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
if (Buffer.TYPED_ARRAY_SUPPORT) {
this[offset] = (value >>> 24)
this[offset + 1] = (value >>> 16)
this[offset + 2] = (value >>> 8)
this[offset + 3] = (value & 0xff)
} else {
objectWriteUInt32(this, value, offset, false)
}
return offset + 4
}
Buffer.prototype.writeIntLE = function writeIntLE(value, offset, byteLength, noAssert) {
value = +value
offset = offset | 0
if (!noAssert) {
var limit = Math.pow(2, 8 * byteLength - 1)
checkInt(this, value, offset, byteLength, limit - 1, -limit)
}
var i = 0
var mul = 1
var sub = value < 0 ? 1 : 0
this[offset] = value & 0xFF
while (++i < byteLength && (mul *= 0x100)) {
this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
}
return offset + byteLength
}
Buffer.prototype.writeIntBE = function writeIntBE(value, offset, byteLength, noAssert) {
value = +value
offset = offset | 0
if (!noAssert) {
var limit = Math.pow(2, 8 * byteLength - 1)
checkInt(this, value, offset, byteLength, limit - 1, -limit)
}
var i = byteLength - 1
var mul = 1
var sub = value < 0 ? 1 : 0
this[offset + i] = value & 0xFF
while (--i >= 0 && (mul *= 0x100)) {
this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
}
return offset + byteLength
}
Buffer.prototype.writeInt8 = function writeInt8(value, offset, noAssert) {
value = +value
offset = offset | 0
if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80)
if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value)
if (value < 0) value = 0xff + value + 1
this[offset] = (value & 0xff)
return offset + 1
}
Buffer.prototype.writeInt16LE = function writeInt16LE(value, offset, noAssert) {
value = +value
offset = offset | 0
if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
if (Buffer.TYPED_ARRAY_SUPPORT) {
this[offset] = (value & 0xff)
this[offset + 1] = (value >>> 8)
} else {
objectWriteUInt16(this, value, offset, true)
}
return offset + 2
}
Buffer.prototype.writeInt16BE = function writeInt16BE(value, offset, noAssert) {
value = +value
offset = offset | 0
if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
if (Buffer.TYPED_ARRAY_SUPPORT) {
this[offset] = (value >>> 8)
this[offset + 1] = (value & 0xff)
} else {
objectWriteUInt16(this, value, offset, false)
}
return offset + 2
}
Buffer.prototype.writeInt32LE = function writeInt32LE(value, offset, noAssert) {
value = +value
offset = offset | 0
if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
if (Buffer.TYPED_ARRAY_SUPPORT) {
this[offset] = (value & 0xff)
this[offset + 1] = (value >>> 8)
this[offset + 2] = (value >>> 16)
this[offset + 3] = (value >>> 24)
} else {
objectWriteUInt32(this, value, offset, true)
}
return offset + 4
}
Buffer.prototype.writeInt32BE = function writeInt32BE(value, offset, noAssert) {
value = +value
offset = offset | 0
if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
if (value < 0) value = 0xffffffff + value + 1
if (Buffer.TYPED_ARRAY_SUPPORT) {
this[offset] = (value >>> 24)
this[offset + 1] = (value >>> 16)
this[offset + 2] = (value >>> 8)
this[offset + 3] = (value & 0xff)
} else {
objectWriteUInt32(this, value, offset, false)
}
return offset + 4
}
function checkIEEE754(buf, value, offset, ext, max, min) {
if (offset + ext > buf.length) throw new RangeError('index out of range')
if (offset < 0) throw new RangeError('index out of range')
}
function writeFloat(buf, value, offset, littleEndian, noAssert) {
if (!noAssert) {
checkIEEE754(buf, value, offset, 4, 3.4028234663852886e+38, -3.4028234663852886e+38)
}
ieee754.write(buf, value, offset, littleEndian, 23, 4)
return offset + 4
}
Buffer.prototype.writeFloatLE = function writeFloatLE(value, offset, noAssert) {
return writeFloat(this, value, offset, true, noAssert)
}
Buffer.prototype.writeFloatBE = function writeFloatBE(value, offset, noAssert) {
return writeFloat(this, value, offset, false, noAssert)
}
function writeDouble(buf, value, offset, littleEndian, noAssert) {
if (!noAssert) {
checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308)
}
ieee754.write(buf, value, offset, littleEndian, 52, 8)
return offset + 8
}
Buffer.prototype.writeDoubleLE = function writeDoubleLE(value, offset, noAssert) {
return writeDouble(this, value, offset, true, noAssert)
}
Buffer.prototype.writeDoubleBE = function writeDoubleBE(value, offset, noAssert) {
return writeDouble(this, value, offset, false, noAssert)
}
// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)
Buffer.prototype.copy = function copy(target, targetStart, start, end) {
if (!start) start = 0
if (!end && end !== 0) end = this.length
if (targetStart >= target.length) targetStart = target.length
if (!targetStart) targetStart = 0
if (end > 0 && end < start) end = start
// Copy 0 bytes; we're done
if (end === start) return 0
if (target.length === 0 || this.length === 0) return 0
// Fatal error conditions
if (targetStart < 0) {
throw new RangeError('targetStart out of bounds')
}
if (start < 0 || start >= this.length) throw new RangeError('sourceStart out of bounds')
if (end < 0) throw new RangeError('sourceEnd out of bounds')
// Are we oob?
if (end > this.length) end = this.length
if (target.length - targetStart < end - start) {
end = target.length - targetStart + start
}
var len = end - start
var i
if (this === target && start < targetStart && targetStart < end) {
// descending copy from end
for (i = len - 1; i >= 0; i--) {
target[i + targetStart] = this[i + start]
}
} else if (len < 1000 || !Buffer.TYPED_ARRAY_SUPPORT) {
// ascending copy from start
for (i = 0; i < len; i++) {
target[i + targetStart] = this[i + start]
}
} else {
Uint8Array.prototype.set.call(
target,
this.subarray(start, start + len),
targetStart
)
}
return len
}
// fill(value, start=0, end=buffer.length)
Buffer.prototype.fill = function fill(value, start, end) {
if (!value) value = 0
if (!start) start = 0
if (!end) end = this.length
if (end < start) throw new RangeError('end < start')
// Fill 0 bytes; we're done
if (end === start) return
if (this.length === 0) return
if (start < 0 || start >= this.length) throw new RangeError('start out of bounds')
if (end < 0 || end > this.length) throw new RangeError('end out of bounds')
var i
if (typeof value === 'number') {
for (i = start; i < end; i++) {
this[i] = value
}
} else {
var bytes = utf8ToBytes(value.toString())
var len = bytes.length
for (i = start; i < end; i++) {
this[i] = bytes[i % len]
}
}
return this
}
// HELPER FUNCTIONS
// ================
var INVALID_BASE64_RE = /[^+\/0-9A-Za-z-_]/g
function base64clean(str) {
// Node strips out invalid characters like \n and \t from the string, base64-js does not
str = stringtrim(str).replace(INVALID_BASE64_RE, '')
// Node converts strings with length < 2 to ''
if (str.length < 2) return ''
// Node allows for non-padded base64 strings (missing trailing ===), base64-js does not
while (str.length % 4 !== 0) {
str = str + '='
}
return str
}
function stringtrim(str) {
if (str.trim) return str.trim()
return str.replace(/^\s+|\s+$/g, '')
}
function toHex(n) {
if (n < 16) return '0' + n.toString(16)
return n.toString(16)
}
function utf8ToBytes(string, units) {
units = units || Infinity
var codePoint
var length = string.length
var leadSurrogate = null
var bytes = []
for (var i = 0; i < length; i++) {
codePoint = string.charCodeAt(i)
// is surrogate component
if (codePoint > 0xD7FF && codePoint < 0xE000) {
// last char was a lead
if (!leadSurrogate) {
// no lead yet
if (codePoint > 0xDBFF) {
// unexpected trail
if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
continue
} else if (i + 1 === length) {
// unpaired lead
if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
continue
}
// valid lead
leadSurrogate = codePoint
continue
}
// 2 leads in a row
if (codePoint < 0xDC00) {
if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
leadSurrogate = codePoint
continue
}
// valid surrogate pair
codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000
} else if (leadSurrogate) {
// valid bmp char, but last char was a lead
if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
}
leadSurrogate = null
// encode utf8
if (codePoint < 0x80) {
if ((units -= 1) < 0) break
bytes.push(codePoint)
} else if (codePoint < 0x800) {
if ((units -= 2) < 0) break
bytes.push(
codePoint >> 0x6 | 0xC0,
codePoint & 0x3F | 0x80
)
} else if (codePoint < 0x10000) {
if ((units -= 3) < 0) break
bytes.push(
codePoint >> 0xC | 0xE0,
codePoint >> 0x6 & 0x3F | 0x80,
codePoint & 0x3F | 0x80
)
} else if (codePoint < 0x110000) {
if ((units -= 4) < 0) break
bytes.push(
codePoint >> 0x12 | 0xF0,
codePoint >> 0xC & 0x3F | 0x80,
codePoint >> 0x6 & 0x3F | 0x80,
codePoint & 0x3F | 0x80
)
} else {
throw new Error('Invalid code point')
}
}
return bytes
}
function asciiToBytes(str) {
var byteArray = []
for (var i = 0; i < str.length; i++) {
// Node's code seems to be doing this and not & 0x7F..
byteArray.push(str.charCodeAt(i) & 0xFF)
}
return byteArray
}
function utf16leToBytes(str, units) {
var c, hi, lo
var byteArray = []
for (var i = 0; i < str.length; i++) {
if ((units -= 2) < 0) break
c = str.charCodeAt(i)
hi = c >> 8
lo = c % 256
byteArray.push(lo)
byteArray.push(hi)
}
return byteArray
}
function base64ToBytes(str) {
return base64.toByteArray(base64clean(str))
}
function blitBuffer(src, dst, offset, length) {
for (var i = 0; i < length; i++) {
if ((i + offset >= dst.length) || (i >= src.length)) break
dst[i + offset] = src[i]
}
return i
}
}).call(this, typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
}, { "base64-js": 5, "ieee754": 8, "isarray": 7}], 7: [function (require, module, exports) {
var toString = {}.toString;
module.exports = Array.isArray || function (arr) {
return toString.call(arr) == '[object Array]';
};
}, {}], 8: [function (require, module, exports) {
exports.read = function (buffer, offset, isLE, mLen, nBytes) {
var e, m
var eLen = nBytes * 8 - mLen - 1
var eMax = (1 << eLen) - 1
var eBias = eMax >> 1
var nBits = -7
var i = isLE ? (nBytes - 1) : 0
var d = isLE ? -1 : 1
var s = buffer[offset + i]
i += d
e = s & ((1 << (-nBits)) - 1)
s >>= (-nBits)
nBits += eLen
for (; nBits > 0; e = e * 256 + buffer[offset + i], i += d, nBits -= 8) { }
m = e & ((1 << (-nBits)) - 1)
e >>= (-nBits)
nBits += mLen
for (; nBits > 0; m = m * 256 + buffer[offset + i], i += d, nBits -= 8) { }
if (e === 0) {
e = 1 - eBias
} else if (e === eMax) {
return m ? NaN : ((s ? -1 : 1) * Infinity)
} else {
m = m + Math.pow(2, mLen)
e = e - eBias
}
return (s ? -1 : 1) * m * Math.pow(2, e - mLen)
}
exports.write = function (buffer, value, offset, isLE, mLen, nBytes) {
var e, m, c
var eLen = nBytes * 8 - mLen - 1
var eMax = (1 << eLen) - 1
var eBias = eMax >> 1
var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0)
var i = isLE ? 0 : (nBytes - 1)
var d = isLE ? 1 : -1
var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0
value = Math.abs(value)
if (isNaN(value) || value === Infinity) {
m = isNaN(value) ? 1 : 0
e = eMax
} else {
e = Math.floor(Math.log(value) / Math.LN2)
if (value * (c = Math.pow(2, -e)) < 1) {
e--
c *= 2
}
if (e + eBias >= 1) {
value += rt / c
} else {
value += rt * Math.pow(2, 1 - eBias)
}
if (value * c >= 2) {
e++
c /= 2
}
if (e + eBias >= eMax) {
m = 0
e = eMax
} else if (e + eBias >= 1) {
m = (value * c - 1) * Math.pow(2, mLen)
e = e + eBias
} else {
m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen)
e = 0
}
}
for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) { }
e = (e << mLen) | m
eLen += mLen
for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) { }
buffer[offset + i - d] |= s * 128
}
}, {}], 9: [function (require, module, exports) {
(function (global) {
'use strict';
var Mutation = global.MutationObserver || global.WebKitMutationObserver;
var scheduleDrain;
{
if (Mutation) {
var called = 0;
var observer = new Mutation(nextTick);
var element = global.document.createTextNode('');
observer.observe(element, {
characterData: true
});
scheduleDrain = function () {
element.data = (called = ++called % 2);
};
} else if (!global.setImmediate && typeof global.MessageChannel !== 'undefined') {
var channel = new global.MessageChannel();
channel.port1.onmessage = nextTick;
scheduleDrain = function () {
channel.port2.postMessage(0);
};
} else if ('document' in global && 'onreadystatechange' in global.document.createElement('script')) {
scheduleDrain = function () {
// Create a <script> element; its readystatechange event will be fired asynchronously once it is inserted
// into the document. Do so, thus queuing up the task. Remember to clean up once it's been called.
var scriptEl = global.document.createElement('script');
scriptEl.onreadystatechange = function () {
nextTick();
scriptEl.onreadystatechange = null;
scriptEl.parentNode.removeChild(scriptEl);
scriptEl = null;
};
global.document.documentElement.appendChild(scriptEl);
};
} else {
scheduleDrain = function () {
setTimeout(nextTick, 0);
};
}
}
var draining;
var queue = [];
//named nextTick for less confusing stack traces
function nextTick() {
draining = true;
var i, oldQueue;
var len = queue.length;
while (len) {
oldQueue = queue;
queue = [];
i = -1;
while (++i < len) {
oldQueue[i]();
}
len = queue.length;
}
draining = false;
}
module.exports = immediate;
function immediate(task) {
if (queue.push(task) === 1 && !draining) {
scheduleDrain();
}
}
}).call(this, typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
}, {}], 10: [function (require, module, exports) {
/**
* Determine if an object is Buffer
*
* Author: Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
* License: MIT
*
* `npm install is-buffer`
*/
module.exports = function (obj) {
return !!(obj != null &&
(obj._isBuffer || // For Safari 5-7 (missing Object.prototype.constructor)
(obj.constructor &&
typeof obj.constructor.isBuffer === 'function' &&
obj.constructor.isBuffer(obj))
))
}
}, {}], 11: [function (require, module, exports) {
'use strict';
// private property
var _keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
// public method for encoding
exports.encode = function (input, utf8) {
var output = "";
var chr1, chr2, chr3, enc1, enc2, enc3, enc4;
var i = 0;
while (i < input.length) {
chr1 = input.charCodeAt(i++);
chr2 = input.charCodeAt(i++);
chr3 = input.charCodeAt(i++);
enc1 = chr1 >> 2;
enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
enc4 = chr3 & 63;
if (isNaN(chr2)) {
enc3 = enc4 = 64;
}
else if (isNaN(chr3)) {
enc4 = 64;
}
output = output + _keyStr.charAt(enc1) + _keyStr.charAt(enc2) + _keyStr.charAt(enc3) + _keyStr.charAt(enc4);
}
return output;
};
// public method for decoding
exports.decode = function (input, utf8) {
var output = "";
var chr1, chr2, chr3;
var enc1, enc2, enc3, enc4;
var i = 0;
input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");
while (i < input.length) {
enc1 = _keyStr.indexOf(input.charAt(i++));
enc2 = _keyStr.indexOf(input.charAt(i++));
enc3 = _keyStr.indexOf(input.charAt(i++));
enc4 = _keyStr.indexOf(input.charAt(i++));
chr1 = (enc1 << 2) | (enc2 >> 4);
chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
chr3 = ((enc3 & 3) << 6) | enc4;
output = output + String.fromCharCode(chr1);
if (enc3 != 64) {
output = output + String.fromCharCode(chr2);
}
if (enc4 != 64) {
output = output + String.fromCharCode(chr3);
}
}
return output;
};
}, {}], 12: [function (require, module, exports) {
'use strict';
function CompressedObject() {
this.compressedSize = 0;
this.uncompressedSize = 0;
this.crc32 = 0;
this.compressionMethod = null;
this.compressedContent = null;
}
CompressedObject.prototype = {
/**
* Return the decompressed content in an unspecified format.
* The format will depend on the decompressor.
* @return {Object} the decompressed content.
*/
getContent: function () {
return null; // see implementation
},
/**
* Return the compressed content in an unspecified format.
* The format will depend on the compressed conten source.
* @return {Object} the compressed content.
*/
getCompressedContent: function () {
return null; // see implementation
}
};
module.exports = CompressedObject;
}, {}], 13: [function (require, module, exports) {
'use strict';
exports.STORE = {
magic: "\x00\x00",
compress: function (content, compressionOptions) {
return content; // no compression
},
uncompress: function (content) {
return content; // no compression
},
compressInputType: null,
uncompressInputType: null
};
exports.DEFLATE = require('./flate');
}, { "./flate": 18}], 14: [function (require, module, exports) {
'use strict';
var utils = require('./utils');
var table = [
0x00000000, 0x77073096, 0xEE0E612C, 0x990951BA,
0x076DC419, 0x706AF48F, 0xE963A535, 0x9E6495A3,
0x0EDB8832, 0x79DCB8A4, 0xE0D5E91E, 0x97D2D988,
0x09B64C2B, 0x7EB17CBD, 0xE7B82D07, 0x90BF1D91,
0x1DB71064, 0x6AB020F2, 0xF3B97148, 0x84BE41DE,
0x1ADAD47D, 0x6DDDE4EB, 0xF4D4B551, 0x83D385C7,
0x136C9856, 0x646BA8C0, 0xFD62F97A, 0x8A65C9EC,
0x14015C4F, 0x63066CD9, 0xFA0F3D63, 0x8D080DF5,
0x3B6E20C8, 0x4C69105E, 0xD56041E4, 0xA2677172,
0x3C03E4D1, 0x4B04D447, 0xD20D85FD, 0xA50AB56B,
0x35B5A8FA, 0x42B2986C, 0xDBBBC9D6, 0xACBCF940,
0x32D86CE3, 0x45DF5C75, 0xDCD60DCF, 0xABD13D59,
0x26D930AC, 0x51DE003A, 0xC8D75180, 0xBFD06116,
0x21B4F4B5, 0x56B3C423, 0xCFBA9599, 0xB8BDA50F,
0x2802B89E, 0x5F058808, 0xC60CD9B2, 0xB10BE924,
0x2F6F7C87, 0x58684C11, 0xC1611DAB, 0xB6662D3D,
0x76DC4190, 0x01DB7106, 0x98D220BC, 0xEFD5102A,
0x71B18589, 0x06B6B51F, 0x9FBFE4A5, 0xE8B8D433,
0x7807C9A2, 0x0F00F934, 0x9609A88E, 0xE10E9818,
0x7F6A0DBB, 0x086D3D2D, 0x91646C97, 0xE6635C01,
0x6B6B51F4, 0x1C6C6162, 0x856530D8, 0xF262004E,
0x6C0695ED, 0x1B01A57B, 0x8208F4C1, 0xF50FC457,
0x65B0D9C6, 0x12B7E950, 0x8BBEB8EA, 0xFCB9887C,
0x62DD1DDF, 0x15DA2D49, 0x8CD37CF3, 0xFBD44C65,
0x4DB26158, 0x3AB551CE, 0xA3BC0074, 0xD4BB30E2,
0x4ADFA541, 0x3DD895D7, 0xA4D1C46D, 0xD3D6F4FB,
0x4369E96A, 0x346ED9FC, 0xAD678846, 0xDA60B8D0,
0x44042D73, 0x33031DE5, 0xAA0A4C5F, 0xDD0D7CC9,
0x5005713C, 0x270241AA, 0xBE0B1010, 0xC90C2086,
0x5768B525, 0x206F85B3, 0xB966D409, 0xCE61E49F,
0x5EDEF90E, 0x29D9C998, 0xB0D09822, 0xC7D7A8B4,
0x59B33D17, 0x2EB40D81, 0xB7BD5C3B, 0xC0BA6CAD,
0xEDB88320, 0x9ABFB3B6, 0x03B6E20C, 0x74B1D29A,
0xEAD54739, 0x9DD277AF, 0x04DB2615, 0x73DC1683,
0xE3630B12, 0x94643B84, 0x0D6D6A3E, 0x7A6A5AA8,
0xE40ECF0B, 0x9309FF9D, 0x0A00AE27, 0x7D079EB1,
0xF00F9344, 0x8708A3D2, 0x1E01F268, 0x6906C2FE,
0xF762575D, 0x806567CB, 0x196C3671, 0x6E6B06E7,
0xFED41B76, 0x89D32BE0, 0x10DA7A5A, 0x67DD4ACC,
0xF9B9DF6F, 0x8EBEEFF9, 0x17B7BE43, 0x60B08ED5,
0xD6D6A3E8, 0xA1D1937E, 0x38D8C2C4, 0x4FDFF252,
0xD1BB67F1, 0xA6BC5767, 0x3FB506DD, 0x48B2364B,
0xD80D2BDA, 0xAF0A1B4C, 0x36034AF6, 0x41047A60,
0xDF60EFC3, 0xA867DF55, 0x316E8EEF, 0x4669BE79,
0xCB61B38C, 0xBC66831A, 0x256FD2A0, 0x5268E236,
0xCC0C7795, 0xBB0B4703, 0x220216B9, 0x5505262F,
0xC5BA3BBE, 0xB2BD0B28, 0x2BB45A92, 0x5CB36A04,
0xC2D7FFA7, 0xB5D0CF31, 0x2CD99E8B, 0x5BDEAE1D,
0x9B64C2B0, 0xEC63F226, 0x756AA39C, 0x026D930A,
0x9C0906A9, 0xEB0E363F, 0x72076785, 0x05005713,
0x95BF4A82, 0xE2B87A14, 0x7BB12BAE, 0x0CB61B38,
0x92D28E9B, 0xE5D5BE0D, 0x7CDCEFB7, 0x0BDBDF21,
0x86D3D2D4, 0xF1D4E242, 0x68DDB3F8, 0x1FDA836E,
0x81BE16CD, 0xF6B9265B, 0x6FB077E1, 0x18B74777,
0x88085AE6, 0xFF0F6A70, 0x66063BCA, 0x11010B5C,
0x8F659EFF, 0xF862AE69, 0x616BFFD3, 0x166CCF45,
0xA00AE278, 0xD70DD2EE, 0x4E048354, 0x3903B3C2,
0xA7672661, 0xD06016F7, 0x4969474D, 0x3E6E77DB,
0xAED16A4A, 0xD9D65ADC, 0x40DF0B66, 0x37D83BF0,
0xA9BCAE53, 0xDEBB9EC5, 0x47B2CF7F, 0x30B5FFE9,
0xBDBDF21C, 0xCABAC28A, 0x53B39330, 0x24B4A3A6,
0xBAD03605, 0xCDD70693, 0x54DE5729, 0x23D967BF,
0xB3667A2E, 0xC4614AB8, 0x5D681B02, 0x2A6F2B94,
0xB40BBE37, 0xC30C8EA1, 0x5A05DF1B, 0x2D02EF8D
];
/**
*
* Javascript crc32
* http://www.webtoolkit.info/
*
*/
module.exports = function crc32(input, crc) {
if (typeof input === "undefined" || !input.length) {
return 0;
}
var isArray = utils.getTypeOf(input) !== "string";
if (typeof (crc) == "undefined") {
crc = 0;
}
var x = 0;
var y = 0;
var b = 0;
crc = crc ^ (-1);
for (var i = 0, iTop = input.length; i < iTop; i++) {
b = isArray ? input[i] : input.charCodeAt(i);
y = (crc ^ b) & 0xFF;
x = table[y];
crc = (crc >>> 8) ^ x;
}
return crc ^ (-1);
};
// vim: set shiftwidth=4 softtabstop=4:
}, { "./utils": 31}], 15: [function (require, module, exports) {
'use strict';
var utils = require('./utils');
function DataReader(data) {
this.data = null; // type : see implementation
this.length = 0;
this.index = 0;
}
DataReader.prototype = {
/**
* Check that the offset will not go too far.
* @param {string} offset the additional offset to check.
* @throws {Error} an Error if the offset is out of bounds.
*/
checkOffset: function (offset) {
this.checkIndex(this.index + offset);
},
/**
* Check that the specifed index will not be too far.
* @param {string} newIndex the index to check.
* @throws {Error} an Error if the index is out of bounds.
*/
checkIndex: function (newIndex) {
if (this.length < newIndex || newIndex < 0) {
throw new Error("End of data reached (data length = " + this.length + ", asked index = " + (newIndex) + "). Corrupted zip ?");
}
},
/**
* Change the index.
* @param {number} newIndex The new index.
* @throws {Error} if the new index is out of the data.
*/
setIndex: function (newIndex) {
this.checkIndex(newIndex);
this.index = newIndex;
},
/**
* Skip the next n bytes.
* @param {number} n the number of bytes to skip.
* @throws {Error} if the new index is out of the data.
*/
skip: function (n) {
this.setIndex(this.index + n);
},
/**
* Get the byte at the specified index.
* @param {number} i the index to use.
* @return {number} a byte.
*/
byteAt: function (i) {
// see implementations
},
/**
* Get the next number with a given byte size.
* @param {number} size the number of bytes to read.
* @return {number} the corresponding number.
*/
readInt: function (size) {
var result = 0,
i;
this.checkOffset(size);
for (i = this.index + size - 1; i >= this.index; i--) {
result = (result << 8) + this.byteAt(i);
}
this.index += size;
return result;
},
/**
* Get the next string with a given byte size.
* @param {number} size the number of bytes to read.
* @return {string} the corresponding string.
*/
readString: function (size) {
return utils.transformTo("string", this.readData(size));
},
/**
* Get raw data without conversion, <size> bytes.
* @param {number} size the number of bytes to read.
* @return {Object} the raw data, implementation specific.
*/
readData: function (size) {
// see implementations
},
/**
* Find the last occurence of a zip signature (4 bytes).
* @param {string} sig the signature to find.
* @return {number} the index of the last occurence, -1 if not found.
*/
lastIndexOfSignature: function (sig) {
// see implementations
},
/**
* Get the next date.
* @return {Date} the date.
*/
readDate: function () {
var dostime = this.readInt(4);
return new Date(
((dostime >> 25) & 0x7f) + 1980, // year
((dostime >> 21) & 0x0f) - 1, // month
(dostime >> 16) & 0x1f, // day
(dostime >> 11) & 0x1f, // hour
(dostime >> 5) & 0x3f, // minute
(dostime & 0x1f) << 1); // second
}
};
module.exports = DataReader;
}, { "./utils": 31}], 16: [function (require, module, exports) {
'use strict';
exports.base64 = false;
exports.binary = false;
exports.dir = false;
exports.createFolders = false;
exports.date = null;
exports.compression = null;
exports.compressionOptions = null;
exports.comment = null;
exports.unixPermissions = null;
exports.dosPermissions = null;
}, {}], 17: [function (require, module, exports) {
'use strict';
var utils = require('./utils');
/**
* @deprecated
* This function will be removed in a future version without replacement.
*/
exports.string2binary = function (str) {
return utils.string2binary(str);
};
/**
* @deprecated
* This function will be removed in a future version without replacement.
*/
exports.string2Uint8Array = function (str) {
return utils.transformTo("uint8array", str);
};
/**
* @deprecated
* This function will be removed in a future version without replacement.
*/
exports.uint8Array2String = function (array) {
return utils.transformTo("string", array);
};
/**
* @deprecated
* This function will be removed in a future version without replacement.
*/
exports.string2Blob = function (str) {
var buffer = utils.transformTo("arraybuffer", str);
return utils.arrayBuffer2Blob(buffer);
};
/**
* @deprecated
* This function will be removed in a future version without replacement.
*/
exports.arrayBuffer2Blob = function (buffer) {
return utils.arrayBuffer2Blob(buffer);
};
/**
* @deprecated
* This function will be removed in a future version without replacement.
*/
exports.transformTo = function (outputType, input) {
return utils.transformTo(outputType, input);
};
/**
* @deprecated
* This function will be removed in a future version without replacement.
*/
exports.getTypeOf = function (input) {
return utils.getTypeOf(input);
};
/**
* @deprecated
* This function will be removed in a future version without replacement.
*/
exports.checkSupport = function (type) {
return utils.checkSupport(type);
};
/**
* @deprecated
* This value will be removed in a future version without replacement.
*/
exports.MAX_VALUE_16BITS = utils.MAX_VALUE_16BITS;
/**
* @deprecated
* This value will be removed in a future version without replacement.
*/
exports.MAX_VALUE_32BITS = utils.MAX_VALUE_32BITS;
/**
* @deprecated
* This function will be removed in a future version without replacement.
*/
exports.pretty = function (str) {
return utils.pretty(str);
};
/**
* @deprecated
* This function will be removed in a future version without replacement.
*/
exports.findCompression = function (compressionMethod) {
return utils.findCompression(compressionMethod);
};
/**
* @deprecated
* This function will be removed in a future version without replacement.
*/
exports.isRegExp = function (object) {
return utils.isRegExp(object);
};
}, { "./utils": 31}], 18: [function (require, module, exports) {
'use strict';
var USE_TYPEDARRAY = (typeof Uint8Array !== 'undefined') && (typeof Uint16Array !== 'undefined') && (typeof Uint32Array !== 'undefined');
var pako = require("pako");
exports.uncompressInputType = USE_TYPEDARRAY ? "uint8array" : "array";
exports.compressInputType = USE_TYPEDARRAY ? "uint8array" : "array";
exports.magic = "\x08\x00";
exports.compress = function (input, compressionOptions) {
return pako.deflateRaw(input, {
level: compressionOptions.level || -1 // default compression
});
};
exports.uncompress = function (input) {
return pako.inflateRaw(input);
};
}, { "pako": 37}], 19: [function (require, module, exports) {
'use strict';
var base64 = require('./base64');
/**
Usage:
zip = new JSZip();
zip.file("hello.txt", "Hello, World!").file("tempfile", "nothing");
zip.folder("images").file("smile.gif", base64Data, {base64: true});
zip.file("Xmas.txt", "Ho ho ho !", {date : new Date("December 25, 2007 00:00:01")});
zip.remove("tempfile");
base64zip = zip.generate();
**/
/**
* Representation a of zip file in js
* @constructor
* @param {String=|ArrayBuffer=|Uint8Array=} data the data to load, if any (optional).
* @param {Object=} options the options for creating this objects (optional).
*/
function JSZip(data, options) {
// if this constructor is used without `new`, it adds `new` before itself:
if (!(this instanceof JSZip)) return new JSZip(data, options);
// object containing the files :
// {
// "folder/" : {...},
// "folder/data.txt" : {...}
// }
this.files = {};
this.comment = null;
// Where we are in the hierarchy
this.root = "";
if (data) {
this.load(data, options);
}
this.clone = function () {
var newObj = new JSZip();
for (var i in this) {
if (typeof this[i] !== "function") {
newObj[i] = this[i];
}
}
return newObj;
};
}
JSZip.prototype = require('./object');
JSZip.prototype.load = require('./load');
JSZip.support = require('./support');
JSZip.defaults = require('./defaults');
/**
* @deprecated
* This namespace will be removed in a future version without replacement.
*/
JSZip.utils = require('./deprecatedPublicUtils');
JSZip.base64 = {
/**
* @deprecated
* This method will be removed in a future version without replacement.
*/
encode: function (input) {
return base64.encode(input);
},
/**
* @deprecated
* This method will be removed in a future version without replacement.
*/
decode: function (input) {
return base64.decode(input);
}
};
JSZip.compressions = require('./compressions');
module.exports = JSZip;
}, { "./base64": 11, "./compressions": 13, "./defaults": 16, "./deprecatedPublicUtils": 17, "./load": 20, "./object": 23, "./support": 27}], 20: [function (require, module, exports) {
'use strict';
var base64 = require('./base64');
var ZipEntries = require('./zipEntries');
module.exports = function (data, options) {
var files, zipEntries, i, input;
options = options || {};
if (options.base64) {
data = base64.decode(data);
}
zipEntries = new ZipEntries(data, options);
files = zipEntries.files;
for (i = 0; i < files.length; i++) {
input = files[i];
this.file(input.fileName, input.decompressed, {
binary: true,
optimizedBinaryString: true,
date: input.date,
dir: input.dir,
comment: input.fileComment.length ? input.fileComment : null,
unixPermissions: input.unixPermissions,
dosPermissions: input.dosPermissions,
createFolders: options.createFolders
});
}
if (zipEntries.zipComment.length) {
this.comment = zipEntries.zipComment;
}
return this;
};
}, { "./base64": 11, "./zipEntries": 32}], 21: [function (require, module, exports) {
(function (Buffer) {
'use strict';
module.exports = function (data, encoding) {
return new Buffer(data, encoding);
};
module.exports.test = function (b) {
return Buffer.isBuffer(b);
};
}).call(this, require("buffer").Buffer)
}, { "buffer": 6}], 22: [function (require, module, exports) {
'use strict';
var Uint8ArrayReader = require('./uint8ArrayReader');
function NodeBufferReader(data) {
this.data = data;
this.length = this.data.length;
this.index = 0;
}
NodeBufferReader.prototype = new Uint8ArrayReader();
/**
* @see DataReader.readData
*/
NodeBufferReader.prototype.readData = function (size) {
this.checkOffset(size);
var result = this.data.slice(this.index, this.index + size);
this.index += size;
return result;
};
module.exports = NodeBufferReader;
}, { "./uint8ArrayReader": 28}], 23: [function (require, module, exports) {
'use strict';
var support = require('./support');
var utils = require('./utils');
var crc32 = require('./crc32');
var signature = require('./signature');
var defaults = require('./defaults');
var base64 = require('./base64');
var compressions = require('./compressions');
var CompressedObject = require('./compressedObject');
var nodeBuffer = require('./nodeBuffer');
var utf8 = require('./utf8');
var StringWriter = require('./stringWriter');
var Uint8ArrayWriter = require('./uint8ArrayWriter');
/**
* Returns the raw data of a ZipObject, decompress the content if necessary.
* @param {ZipObject} file the file to use.
* @return {String|ArrayBuffer|Uint8Array|Buffer} the data.
*/
var getRawData = function (file) {
if (file._data instanceof CompressedObject) {
file._data = file._data.getContent();
file.options.binary = true;
file.options.base64 = false;
if (utils.getTypeOf(file._data) === "uint8array") {
var copy = file._data;
// when reading an arraybuffer, the CompressedObject mechanism will keep it and subarray() a Uint8Array.
// if we request a file in the same format, we might get the same Uint8Array or its ArrayBuffer (the original zip file).
file._data = new Uint8Array(copy.length);
// with an empty Uint8Array, Opera fails with a "Offset larger than array size"
if (copy.length !== 0) {
file._data.set(copy, 0);
}
}
}
return file._data;
};
/**
* Returns the data of a ZipObject in a binary form. If the content is an unicode string, encode it.
* @param {ZipObject} file the file to use.
* @return {String|ArrayBuffer|Uint8Array|Buffer} the data.
*/
var getBinaryData = function (file) {
var result = getRawData(file),
type = utils.getTypeOf(result);
if (type === "string") {
if (!file.options.binary) {
// unicode text !
// unicode string => binary string is a painful process, check if we can avoid it.
if (support.nodebuffer) {
return nodeBuffer(result, "utf-8");
}
}
return file.asBinary();
}
return result;
};
/**
* Transform this._data into a string.
* @param {function} filter a function String -> String, applied if not null on the result.
* @return {String} the string representing this._data.
*/
var dataToString = function (asUTF8) {
var result = getRawData(this);
if (result === null || typeof result === "undefined") {
return "";
}
// if the data is a base64 string, we decode it before checking the encoding !
if (this.options.base64) {
result = base64.decode(result);
}
if (asUTF8 && this.options.binary) {
// JSZip.prototype.utf8decode supports arrays as input
// skip to array => string step, utf8decode will do it.
result = out.utf8decode(result);
}
else {
// no utf8 transformation, do the array => string step.
result = utils.transformTo("string", result);
}
if (!asUTF8 && !this.options.binary) {
result = utils.transformTo("string", out.utf8encode(result));
}
return result;
};
/**
* A simple object representing a file in the zip file.
* @constructor
* @param {string} name the name of the file
* @param {String|ArrayBuffer|Uint8Array|Buffer} data the data
* @param {Object} options the options of the file
*/
var ZipObject = function (name, data, options) {
this.name = name;
this.dir = options.dir;
this.date = options.date;
this.comment = options.comment;
this.unixPermissions = options.unixPermissions;
this.dosPermissions = options.dosPermissions;
this._data = data;
this.options = options;
/*
* This object contains initial values for dir and date.
* With them, we can check if the user changed the deprecated metadata in
* `ZipObject#options` or not.
*/
this._initialMetadata = {
dir: options.dir,
date: options.date
};
};
ZipObject.prototype = {
/**
* Return the content as UTF8 string.
* @return {string} the UTF8 string.
*/
asText: function () {
return dataToString.call(this, true);
},
/**
* Returns the binary content.
* @return {string} the content as binary.
*/
asBinary: function () {
return dataToString.call(this, false);
},
/**
* Returns the content as a nodejs Buffer.
* @return {Buffer} the content as a Buffer.
*/
asNodeBuffer: function () {
var result = getBinaryData(this);
return utils.transformTo("nodebuffer", result);
},
/**
* Returns the content as an Uint8Array.
* @return {Uint8Array} the content as an Uint8Array.
*/
asUint8Array: function () {
var result = getBinaryData(this);
return utils.transformTo("uint8array", result);
},
/**
* Returns the content as an ArrayBuffer.
* @return {ArrayBuffer} the content as an ArrayBufer.
*/
asArrayBuffer: function () {
return this.asUint8Array().buffer;
}
};
/**
* Transform an integer into a string in hexadecimal.
* @private
* @param {number} dec the number to convert.
* @param {number} bytes the number of bytes to generate.
* @returns {string} the result.
*/
var decToHex = function (dec, bytes) {
var hex = "",
i;
for (i = 0; i < bytes; i++) {
hex += String.fromCharCode(dec & 0xff);
dec = dec >>> 8;
}
return hex;
};
/**
* Merge the objects passed as parameters into a new one.
* @private
* @param {...Object} var_args All objects to merge.
* @return {Object} a new object with the data of the others.
*/
var extend = function () {
var result = {}, i, attr;
for (i = 0; i < arguments.length; i++) { // arguments is not enumerable in some browsers
for (attr in arguments[i]) {
if (arguments[i].hasOwnProperty(attr) && typeof result[attr] === "undefined") {
result[attr] = arguments[i][attr];
}
}
}
return result;
};
/**
* Transforms the (incomplete) options from the user into the complete
* set of options to create a file.
* @private
* @param {Object} o the options from the user.
* @return {Object} the complete set of options.
*/
var prepareFileAttrs = function (o) {
o = o || {};
if (o.base64 === true && (o.binary === null || o.binary === undefined)) {
o.binary = true;
}
o = extend(o, defaults);
o.date = o.date || new Date();
if (o.compression !== null) o.compression = o.compression.toUpperCase();
return o;
};
/**
* Add a file in the current folder.
* @private
* @param {string} name the name of the file
* @param {String|ArrayBuffer|Uint8Array|Buffer} data the data of the file
* @param {Object} o the options of the file
* @return {Object} the new file.
*/
var fileAdd = function (name, data, o) {
// be sure sub folders exist
var dataType = utils.getTypeOf(data),
parent;
o = prepareFileAttrs(o);
if (typeof o.unixPermissions === "string") {
o.unixPermissions = parseInt(o.unixPermissions, 8);
}
// UNX_IFDIR 0040000 see zipinfo.c
if (o.unixPermissions && (o.unixPermissions & 0x4000)) {
o.dir = true;
}
// Bit 4 Directory
if (o.dosPermissions && (o.dosPermissions & 0x0010)) {
o.dir = true;
}
if (o.dir) {
name = forceTrailingSlash(name);
}
if (o.createFolders && (parent = parentFolder(name))) {
folderAdd.call(this, parent, true);
}
if (o.dir || data === null || typeof data === "undefined") {
o.base64 = false;
o.binary = false;
data = null;
dataType = null;
}
else if (dataType === "string") {
if (o.binary && !o.base64) {
// optimizedBinaryString == true means that the file has already been filtered with a 0xFF mask
if (o.optimizedBinaryString !== true) {
// this is a string, not in a base64 format.
// Be sure that this is a correct "binary string"
data = utils.string2binary(data);
}
}
}
else { // arraybuffer, uint8array, ...
o.base64 = false;
o.binary = true;
if (!dataType && !(data instanceof CompressedObject)) {
throw new Error("The data of '" + name + "' is in an unsupported format !");
}
// special case : it's way easier to work with Uint8Array than with ArrayBuffer
if (dataType === "arraybuffer") {
data = utils.transformTo("uint8array", data);
}
}
var object = new ZipObject(name, data, o);
this.files[name] = object;
return object;
};
/**
* Find the parent folder of the path.
* @private
* @param {string} path the path to use
* @return {string} the parent folder, or ""
*/
var parentFolder = function (path) {
if (path.slice(-1) == '/') {
path = path.substring(0, path.length - 1);
}
var lastSlash = path.lastIndexOf('/');
return (lastSlash > 0) ? path.substring(0, lastSlash) : "";
};
/**
* Returns the path with a slash at the end.
* @private
* @param {String} path the path to check.
* @return {String} the path with a trailing slash.
*/
var forceTrailingSlash = function (path) {
// Check the name ends with a /
if (path.slice(-1) != "/") {
path += "/"; // IE doesn't like substr(-1)
}
return path;
};
/**
* Add a (sub) folder in the current folder.
* @private
* @param {string} name the folder's name
* @param {boolean=} [createFolders] If true, automatically create sub
* folders. Defaults to false.
* @return {Object} the new folder.
*/
var folderAdd = function (name, createFolders) {
createFolders = (typeof createFolders !== 'undefined') ? createFolders : false;
name = forceTrailingSlash(name);
// Does this folder already exist?
if (!this.files[name]) {
fileAdd.call(this, name, null, {
dir: true,
createFolders: createFolders
});
}
return this.files[name];
};
/**
* Generate a JSZip.CompressedObject for a given zipOject.
* @param {ZipObject} file the object to read.
* @param {JSZip.compression} compression the compression to use.
* @param {Object} compressionOptions the options to use when compressing.
* @return {JSZip.CompressedObject} the compressed result.
*/
var generateCompressedObjectFrom = function (file, compression, compressionOptions) {
var result = new CompressedObject(),
content;
// the data has not been decompressed, we might reuse things !
if (file._data instanceof CompressedObject) {
result.uncompressedSize = file._data.uncompressedSize;
result.crc32 = file._data.crc32;
if (result.uncompressedSize === 0 || file.dir) {
compression = compressions['STORE'];
result.compressedContent = "";
result.crc32 = 0;
}
else if (file._data.compressionMethod === compression.magic) {
result.compressedContent = file._data.getCompressedContent();
}
else {
content = file._data.getContent();
// need to decompress / recompress
result.compressedContent = compression.compress(utils.transformTo(compression.compressInputType, content), compressionOptions);
}
}
else {
// have uncompressed data
content = getBinaryData(file);
if (!content || content.length === 0 || file.dir) {
compression = compressions['STORE'];
content = "";
}
result.uncompressedSize = content.length;
result.crc32 = crc32(content);
result.compressedContent = compression.compress(utils.transformTo(compression.compressInputType, content), compressionOptions);
}
result.compressedSize = result.compressedContent.length;
result.compressionMethod = compression.magic;
return result;
};
/**
* Generate the UNIX part of the external file attributes.
* @param {Object} unixPermissions the unix permissions or null.
* @param {Boolean} isDir true if the entry is a directory, false otherwise.
* @return {Number} a 32 bit integer.
*
* adapted from http://unix.stackexchange.com/questions/14705/the-zip-formats-external-file-attribute :
*
* TTTTsstrwxrwxrwx0000000000ADVSHR
* ^^^^____________________________ file type, see zipinfo.c (UNX_*)
* ^^^_________________________ setuid, setgid, sticky
* ^^^^^^^^^________________ permissions
* ^^^^^^^^^^______ not used ?
* ^^^^^^ DOS attribute bits : Archive, Directory, Volume label, System file, Hidden, Read only
*/
var generateUnixExternalFileAttr = function (unixPermissions, isDir) {
var result = unixPermissions;
if (!unixPermissions) {
// I can't use octal values in strict mode, hence the hexa.
// 040775 => 0x41fd
// 0100664 => 0x81b4
result = isDir ? 0x41fd : 0x81b4;
}
return (result & 0xFFFF) << 16;
};
/**
* Generate the DOS part of the external file attributes.
* @param {Object} dosPermissions the dos permissions or null.
* @param {Boolean} isDir true if the entry is a directory, false otherwise.
* @return {Number} a 32 bit integer.
*
* Bit 0 Read-Only
* Bit 1 Hidden
* Bit 2 System
* Bit 3 Volume Label
* Bit 4 Directory
* Bit 5 Archive
*/
var generateDosExternalFileAttr = function (dosPermissions, isDir) {
// the dir flag is already set for compatibility
return (dosPermissions || 0) & 0x3F;
};
/**
* Generate the various parts used in the construction of the final zip file.
* @param {string} name the file name.
* @param {ZipObject} file the file content.
* @param {JSZip.CompressedObject} compressedObject the compressed object.
* @param {number} offset the current offset from the start of the zip file.
* @param {String} platform let's pretend we are this platform (change platform dependents fields)
* @return {object} the zip parts.
*/
var generateZipParts = function (name, file, compressedObject, offset, platform) {
var data = compressedObject.compressedContent,
utfEncodedFileName = utils.transformTo("string", utf8.utf8encode(file.name)),
comment = file.comment || "",
utfEncodedComment = utils.transformTo("string", utf8.utf8encode(comment)),
useUTF8ForFileName = utfEncodedFileName.length !== file.name.length,
useUTF8ForComment = utfEncodedComment.length !== comment.length,
o = file.options,
dosTime,
dosDate,
extraFields = "",
unicodePathExtraField = "",
unicodeCommentExtraField = "",
dir, date;
// handle the deprecated options.dir
if (file._initialMetadata.dir !== file.dir) {
dir = file.dir;
} else {
dir = o.dir;
}
// handle the deprecated options.date
if (file._initialMetadata.date !== file.date) {
date = file.date;
} else {
date = o.date;
}
var extFileAttr = 0;
var versionMadeBy = 0;
if (dir) {
// dos or unix, we set the dos dir flag
extFileAttr |= 0x00010;
}
if (platform === "UNIX") {
versionMadeBy = 0x031E; // UNIX, version 3.0
extFileAttr |= generateUnixExternalFileAttr(file.unixPermissions, dir);
} else { // DOS or other, fallback to DOS
versionMadeBy = 0x0014; // DOS, version 2.0
extFileAttr |= generateDosExternalFileAttr(file.dosPermissions, dir);
}
// date
// @see http://www.delorie.com/djgpp/doc/rbinter/it/52/13.html
// @see http://www.delorie.com/djgpp/doc/rbinter/it/65/16.html
// @see http://www.delorie.com/djgpp/doc/rbinter/it/66/16.html
dosTime = date.getHours();
dosTime = dosTime << 6;
dosTime = dosTime | date.getMinutes();
dosTime = dosTime << 5;
dosTime = dosTime | date.getSeconds() / 2;
dosDate = date.getFullYear() - 1980;
dosDate = dosDate << 4;
dosDate = dosDate | (date.getMonth() + 1);
dosDate = dosDate << 5;
dosDate = dosDate | date.getDate();
if (useUTF8ForFileName) {
// set the unicode path extra field. unzip needs at least one extra
// field to correctly handle unicode path, so using the path is as good
// as any other information. This could improve the situation with
// other archive managers too.
// This field is usually used without the utf8 flag, with a non
// unicode path in the header (winrar, winzip). This helps (a bit)
// with the messy Windows' default compressed folders feature but
// breaks on p7zip which doesn't seek the unicode path extra field.
// So for now, UTF-8 everywhere !
unicodePathExtraField =
// Version
decToHex(1, 1) +
// NameCRC32
decToHex(crc32(utfEncodedFileName), 4) +
// UnicodeName
utfEncodedFileName;
extraFields +=
// Info-ZIP Unicode Path Extra Field
"\x75\x70" +
// size
decToHex(unicodePathExtraField.length, 2) +
// content
unicodePathExtraField;
}
if (useUTF8ForComment) {
unicodeCommentExtraField =
// Version
decToHex(1, 1) +
// CommentCRC32
decToHex(this.crc32(utfEncodedComment), 4) +
// UnicodeName
utfEncodedComment;
extraFields +=
// Info-ZIP Unicode Path Extra Field
"\x75\x63" +
// size
decToHex(unicodeCommentExtraField.length, 2) +
// content
unicodeCommentExtraField;
}
var header = "";
// version needed to extract
header += "\x0A\x00";
// general purpose bit flag
// set bit 11 if utf8
header += (useUTF8ForFileName || useUTF8ForComment) ? "\x00\x08" : "\x00\x00";
// compression method
header += compressedObject.compressionMethod;
// last mod file time
header += decToHex(dosTime, 2);
// last mod file date
header += decToHex(dosDate, 2);
// crc-32
header += decToHex(compressedObject.crc32, 4);
// compressed size
header += decToHex(compressedObject.compressedSize, 4);
// uncompressed size
header += decToHex(compressedObject.uncompressedSize, 4);
// file name length
header += decToHex(utfEncodedFileName.length, 2);
// extra field length
header += decToHex(extraFields.length, 2);
var fileRecord = signature.LOCAL_FILE_HEADER + header + utfEncodedFileName + extraFields;
var dirRecord = signature.CENTRAL_FILE_HEADER +
// version made by (00: DOS)
decToHex(versionMadeBy, 2) +
// file header (common to file and central directory)
header +
// file comment length
decToHex(utfEncodedComment.length, 2) +
// disk number start
"\x00\x00" +
// internal file attributes TODO
"\x00\x00" +
// external file attributes
decToHex(extFileAttr, 4) +
// relative offset of local header
decToHex(offset, 4) +
// file name
utfEncodedFileName +
// extra field
extraFields +
// file comment
utfEncodedComment;
return {
fileRecord: fileRecord,
dirRecord: dirRecord,
compressedObject: compressedObject
};
};
// return the actual prototype of JSZip
var out = {
/**
* Read an existing zip and merge the data in the current JSZip object.
* The implementation is in jszip-load.js, don't forget to include it.
* @param {String|ArrayBuffer|Uint8Array|Buffer} stream The stream to load
* @param {Object} options Options for loading the stream.
* options.base64 : is the stream in base64 ? default : false
* @return {JSZip} the current JSZip object
*/
load: function (stream, options) {
throw new Error("Load method is not defined. Is the file jszip-load.js included ?");
},
/**
* Filter nested files/folders with the specified function.
* @param {Function} search the predicate to use :
* function (relativePath, file) {...}
* It takes 2 arguments : the relative path and the file.
* @return {Array} An array of matching elements.
*/
filter: function (search) {
var result = [],
filename, relativePath, file, fileClone;
for (filename in this.files) {
if (!this.files.hasOwnProperty(filename)) {
continue;
}
file = this.files[filename];
// return a new object, don't let the user mess with our internal objects :)
fileClone = new ZipObject(file.name, file._data, extend(file.options));
relativePath = filename.slice(this.root.length, filename.length);
if (filename.slice(0, this.root.length) === this.root && // the file is in the current root
search(relativePath, fileClone)) { // and the file matches the function
result.push(fileClone);
}
}
return result;
},
/**
* Add a file to the zip file, or search a file.
* @param {string|RegExp} name The name of the file to add (if data is defined),
* the name of the file to find (if no data) or a regex to match files.
* @param {String|ArrayBuffer|Uint8Array|Buffer} data The file data, either raw or base64 encoded
* @param {Object} o File options
* @return {JSZip|Object|Array} this JSZip object (when adding a file),
* a file (when searching by string) or an array of files (when searching by regex).
*/
file: function (name, data, o) {
if (arguments.length === 1) {
if (utils.isRegExp(name)) {
var regexp = name;
return this.filter(function (relativePath, file) {
return !file.dir && regexp.test(relativePath);
});
}
else { // text
return this.filter(function (relativePath, file) {
return !file.dir && relativePath === name;
})[0] || null;
}
}
else { // more than one argument : we have data !
name = this.root + name;
fileAdd.call(this, name, data, o);
}
return this;
},
/**
* Add a directory to the zip file, or search.
* @param {String|RegExp} arg The name of the directory to add, or a regex to search folders.
* @return {JSZip} an object with the new directory as the root, or an array containing matching folders.
*/
folder: function (arg) {
if (!arg) {
return this;
}
if (utils.isRegExp(arg)) {
return this.filter(function (relativePath, file) {
return file.dir && arg.test(relativePath);
});
}
// else, name is a new folder
var name = this.root + arg;
var newFolder = folderAdd.call(this, name);
// Allow chaining by returning a new object with this folder as the root
var ret = this.clone();
ret.root = newFolder.name;
return ret;
},
/**
* Delete a file, or a directory and all sub-files, from the zip
* @param {string} name the name of the file to delete
* @return {JSZip} this JSZip object
*/
remove: function (name) {
name = this.root + name;
var file = this.files[name];
if (!file) {
// Look for any folders
if (name.slice(-1) != "/") {
name += "/";
}
file = this.files[name];
}
if (file && !file.dir) {
// file
delete this.files[name];
} else {
// maybe a folder, delete recursively
var kids = this.filter(function (relativePath, file) {
return file.name.slice(0, name.length) === name;
});
for (var i = 0; i < kids.length; i++) {
delete this.files[kids[i].name];
}
}
return this;
},
/**
* Generate the complete zip file
* @param {Object} options the options to generate the zip file :
* - base64, (deprecated, use type instead) true to generate base64.
* - compression, "STORE" by default.
* - type, "base64" by default. Values are : string, base64, uint8array, arraybuffer, blob.
* @return {String|Uint8Array|ArrayBuffer|Buffer|Blob} the zip file
*/
generate: function (options) {
options = extend(options || {}, {
base64: true,
compression: "STORE",
compressionOptions: null,
type: "base64",
platform: "DOS",
comment: null,
mimeType: 'application/zip'
});
utils.checkSupport(options.type);
// accept nodejs `process.platform`
if (
options.platform === 'darwin' ||
options.platform === 'freebsd' ||
options.platform === 'linux' ||
options.platform === 'sunos'
) {
options.platform = "UNIX";
}
if (options.platform === 'win32') {
options.platform = "DOS";
}
var zipData = [],
localDirLength = 0,
centralDirLength = 0,
writer, i,
utfEncodedComment = utils.transformTo("string", this.utf8encode(options.comment || this.comment || ""));
// first, generate all the zip parts.
for (var name in this.files) {
if (!this.files.hasOwnProperty(name)) {
continue;
}
var file = this.files[name];
var compressionName = file.options.compression || options.compression.toUpperCase();
var compression = compressions[compressionName];
if (!compression) {
throw new Error(compressionName + " is not a valid compression method !");
}
var compressionOptions = file.options.compressionOptions || options.compressionOptions || {};
var compressedObject = generateCompressedObjectFrom.call(this, file, compression, compressionOptions);
var zipPart = generateZipParts.call(this, name, file, compressedObject, localDirLength, options.platform);
localDirLength += zipPart.fileRecord.length + compressedObject.compressedSize;
centralDirLength += zipPart.dirRecord.length;
zipData.push(zipPart);
}
var dirEnd = "";
// end of central dir signature
dirEnd = signature.CENTRAL_DIRECTORY_END +
// number of this disk
"\x00\x00" +
// number of the disk with the start of the central directory
"\x00\x00" +
// total number of entries in the central directory on this disk
decToHex(zipData.length, 2) +
// total number of entries in the central directory
decToHex(zipData.length, 2) +
// size of the central directory 4 bytes
decToHex(centralDirLength, 4) +
// offset of start of central directory with respect to the starting disk number
decToHex(localDirLength, 4) +
// .ZIP file comment length
decToHex(utfEncodedComment.length, 2) +
// .ZIP file comment
utfEncodedComment;
// we have all the parts (and the total length)
// time to create a writer !
var typeName = options.type.toLowerCase();
if (typeName === "uint8array" || typeName === "arraybuffer" || typeName === "blob" || typeName === "nodebuffer") {
writer = new Uint8ArrayWriter(localDirLength + centralDirLength + dirEnd.length);
} else {
writer = new StringWriter(localDirLength + centralDirLength + dirEnd.length);
}
for (i = 0; i < zipData.length; i++) {
writer.append(zipData[i].fileRecord);
writer.append(zipData[i].compressedObject.compressedContent);
}
for (i = 0; i < zipData.length; i++) {
writer.append(zipData[i].dirRecord);
}
writer.append(dirEnd);
var zip = writer.finalize();
switch (options.type.toLowerCase()) {
// case "zip is an Uint8Array"
case "uint8array":
case "arraybuffer":
case "nodebuffer":
return utils.transformTo(options.type.toLowerCase(), zip);
case "blob":
return utils.arrayBuffer2Blob(utils.transformTo("arraybuffer", zip), options.mimeType);
// case "zip is a string"
case "base64":
return (options.base64) ? base64.encode(zip) : zip;
default: // case "string" :
return zip;
}
},
/**
* @deprecated
* This method will be removed in a future version without replacement.
*/
crc32: function (input, crc) {
return crc32(input, crc);
},
/**
* @deprecated
* This method will be removed in a future version without replacement.
*/
utf8encode: function (string) {
return utils.transformTo("string", utf8.utf8encode(string));
},
/**
* @deprecated
* This method will be removed in a future version without replacement.
*/
utf8decode: function (input) {
return utf8.utf8decode(input);
}
};
module.exports = out;
}, { "./base64": 11, "./compressedObject": 12, "./compressions": 13, "./crc32": 14, "./defaults": 16, "./nodeBuffer": 21, "./signature": 24, "./stringWriter": 26, "./support": 27, "./uint8ArrayWriter": 29, "./utf8": 30, "./utils": 31}], 24: [function (require, module, exports) {
'use strict';
exports.LOCAL_FILE_HEADER = "PK\x03\x04";
exports.CENTRAL_FILE_HEADER = "PK\x01\x02";
exports.CENTRAL_DIRECTORY_END = "PK\x05\x06";
exports.ZIP64_CENTRAL_DIRECTORY_LOCATOR = "PK\x06\x07";
exports.ZIP64_CENTRAL_DIRECTORY_END = "PK\x06\x06";
exports.DATA_DESCRIPTOR = "PK\x07\x08";
}, {}], 25: [function (require, module, exports) {
'use strict';
var DataReader = require('./dataReader');
var utils = require('./utils');
function StringReader(data, optimizedBinaryString) {
this.data = data;
if (!optimizedBinaryString) {
this.data = utils.string2binary(this.data);
}
this.length = this.data.length;
this.index = 0;
}
StringReader.prototype = new DataReader();
/**
* @see DataReader.byteAt
*/
StringReader.prototype.byteAt = function (i) {
return this.data.charCodeAt(i);
};
/**
* @see DataReader.lastIndexOfSignature
*/
StringReader.prototype.lastIndexOfSignature = function (sig) {
return this.data.lastIndexOf(sig);
};
/**
* @see DataReader.readData
*/
StringReader.prototype.readData = function (size) {
this.checkOffset(size);
// this will work because the constructor applied the "& 0xff" mask.
var result = this.data.slice(this.index, this.index + size);
this.index += size;
return result;
};
module.exports = StringReader;
}, { "./dataReader": 15, "./utils": 31}], 26: [function (require, module, exports) {
'use strict';
var utils = require('./utils');
/**
* An object to write any content to a string.
* @constructor
*/
var StringWriter = function () {
this.data = [];
};
StringWriter.prototype = {
/**
* Append any content to the current string.
* @param {Object} input the content to add.
*/
append: function (input) {
input = utils.transformTo("string", input);
this.data.push(input);
},
/**
* Finalize the construction an return the result.
* @return {string} the generated string.
*/
finalize: function () {
return this.data.join("");
}
};
module.exports = StringWriter;
}, { "./utils": 31}], 27: [function (require, module, exports) {
(function (Buffer) {
'use strict';
exports.base64 = true;
exports.array = true;
exports.string = true;
exports.arraybuffer = typeof ArrayBuffer !== "undefined" && typeof Uint8Array !== "undefined";
// contains true if JSZip can read/generate nodejs Buffer, false otherwise.
// Browserify will provide a Buffer implementation for browsers, which is
// an augmented Uint8Array (i.e., can be used as either Buffer or U8).
exports.nodebuffer = typeof Buffer !== "undefined";
// contains true if JSZip can read/generate Uint8Array, false otherwise.
exports.uint8array = typeof Uint8Array !== "undefined";
if (typeof ArrayBuffer === "undefined") {
exports.blob = false;
}
else {
var buffer = new ArrayBuffer(0);
try {
exports.blob = new Blob([buffer], {
type: "application/zip"
}).size === 0;
}
catch (e) {
try {
var Builder = window.BlobBuilder || window.WebKitBlobBuilder || window.MozBlobBuilder || window.MSBlobBuilder;
var builder = new Builder();
builder.append(buffer);
exports.blob = builder.getBlob('application/zip').size === 0;
}
catch (e) {
exports.blob = false;
}
}
}
}).call(this, require("buffer").Buffer)
}, { "buffer": 6}], 28: [function (require, module, exports) {
'use strict';
var DataReader = require('./dataReader');
function Uint8ArrayReader(data) {
if (data) {
this.data = data;
this.length = this.data.length;
this.index = 0;
}
}
Uint8ArrayReader.prototype = new DataReader();
/**
* @see DataReader.byteAt
*/
Uint8ArrayReader.prototype.byteAt = function (i) {
return this.data[i];
};
/**
* @see DataReader.lastIndexOfSignature
*/
Uint8ArrayReader.prototype.lastIndexOfSignature = function (sig) {
var sig0 = sig.charCodeAt(0),
sig1 = sig.charCodeAt(1),
sig2 = sig.charCodeAt(2),
sig3 = sig.charCodeAt(3);
for (var i = this.length - 4; i >= 0; --i) {
if (this.data[i] === sig0 && this.data[i + 1] === sig1 && this.data[i + 2] === sig2 && this.data[i + 3] === sig3) {
return i;
}
}
return -1;
};
/**
* @see DataReader.readData
*/
Uint8ArrayReader.prototype.readData = function (size) {
this.checkOffset(size);
if (size === 0) {
// in IE10, when using subarray(idx, idx), we get the array [0x00] instead of [].
return new Uint8Array(0);
}
var result = this.data.subarray(this.index, this.index + size);
this.index += size;
return result;
};
module.exports = Uint8ArrayReader;
}, { "./dataReader": 15}], 29: [function (require, module, exports) {
'use strict';
var utils = require('./utils');
/**
* An object to write any content to an Uint8Array.
* @constructor
* @param {number} length The length of the array.
*/
var Uint8ArrayWriter = function (length) {
this.data = new Uint8Array(length);
this.index = 0;
};
Uint8ArrayWriter.prototype = {
/**
* Append any content to the current array.
* @param {Object} input the content to add.
*/
append: function (input) {
if (input.length !== 0) {
// with an empty Uint8Array, Opera fails with a "Offset larger than array size"
input = utils.transformTo("uint8array", input);
this.data.set(input, this.index);
this.index += input.length;
}
},
/**
* Finalize the construction an return the result.
* @return {Uint8Array} the generated array.
*/
finalize: function () {
return this.data;
}
};
module.exports = Uint8ArrayWriter;
}, { "./utils": 31}], 30: [function (require, module, exports) {
'use strict';
var utils = require('./utils');
var support = require('./support');
var nodeBuffer = require('./nodeBuffer');
/**
* The following functions come from pako, from pako/lib/utils/strings
* released under the MIT license, see pako https://github.com/nodeca/pako/
*/
// Table with utf8 lengths (calculated by first byte of sequence)
// Note, that 5 & 6-byte values and some 4-byte values can not be represented in JS,
// because max possible codepoint is 0x10ffff
var _utf8len = new Array(256);
for (var i = 0; i < 256; i++) {
_utf8len[i] = (i >= 252 ? 6 : i >= 248 ? 5 : i >= 240 ? 4 : i >= 224 ? 3 : i >= 192 ? 2 : 1);
}
_utf8len[254] = _utf8len[254] = 1; // Invalid sequence start
// convert string to array (typed, when possible)
var string2buf = function (str) {
var buf, c, c2, m_pos, i, str_len = str.length, buf_len = 0;
// count binary size
for (m_pos = 0; m_pos < str_len; m_pos++) {
c = str.charCodeAt(m_pos);
if ((c & 0xfc00) === 0xd800 && (m_pos + 1 < str_len)) {
c2 = str.charCodeAt(m_pos + 1);
if ((c2 & 0xfc00) === 0xdc00) {
c = 0x10000 + ((c - 0xd800) << 10) + (c2 - 0xdc00);
m_pos++;
}
}
buf_len += c < 0x80 ? 1 : c < 0x800 ? 2 : c < 0x10000 ? 3 : 4;
}
// allocate buffer
if (support.uint8array) {
buf = new Uint8Array(buf_len);
} else {
buf = new Array(buf_len);
}
// convert
for (i = 0, m_pos = 0; i < buf_len; m_pos++) {
c = str.charCodeAt(m_pos);
if ((c & 0xfc00) === 0xd800 && (m_pos + 1 < str_len)) {
c2 = str.charCodeAt(m_pos + 1);
if ((c2 & 0xfc00) === 0xdc00) {
c = 0x10000 + ((c - 0xd800) << 10) + (c2 - 0xdc00);
m_pos++;
}
}
if (c < 0x80) {
/* one byte */
buf[i++] = c;
} else if (c < 0x800) {
/* two bytes */
buf[i++] = 0xC0 | (c >>> 6);
buf[i++] = 0x80 | (c & 0x3f);
} else if (c < 0x10000) {
/* three bytes */
buf[i++] = 0xE0 | (c >>> 12);
buf[i++] = 0x80 | (c >>> 6 & 0x3f);
buf[i++] = 0x80 | (c & 0x3f);
} else {
/* four bytes */
buf[i++] = 0xf0 | (c >>> 18);
buf[i++] = 0x80 | (c >>> 12 & 0x3f);
buf[i++] = 0x80 | (c >>> 6 & 0x3f);
buf[i++] = 0x80 | (c & 0x3f);
}
}
return buf;
};
// Calculate max possible position in utf8 buffer,
// that will not break sequence. If that's not possible
// - (very small limits) return max size as is.
//
// buf[] - utf8 bytes array
// max - length limit (mandatory);
var utf8border = function (buf, max) {
var pos;
max = max || buf.length;
if (max > buf.length) { max = buf.length; }
// go back from last position, until start of sequence found
pos = max - 1;
while (pos >= 0 && (buf[pos] & 0xC0) === 0x80) { pos--; }
// Fuckup - very small and broken sequence,
// return max, because we should return something anyway.
if (pos < 0) { return max; }
// If we came to start of buffer - that means vuffer is too small,
// return max too.
if (pos === 0) { return max; }
return (pos + _utf8len[buf[pos]] > max) ? pos : max;
};
// convert array to string
var buf2string = function (buf) {
var str, i, out, c, c_len;
var len = buf.length;
// Reserve max possible length (2 words per char)
// NB: by unknown reasons, Array is significantly faster for
// String.fromCharCode.apply than Uint16Array.
var utf16buf = new Array(len * 2);
for (out = 0, i = 0; i < len; ) {
c = buf[i++];
// quick process ascii
if (c < 0x80) { utf16buf[out++] = c; continue; }
c_len = _utf8len[c];
// skip 5 & 6 byte codes
if (c_len > 4) { utf16buf[out++] = 0xfffd; i += c_len - 1; continue; }
// apply mask on first byte
c &= c_len === 2 ? 0x1f : c_len === 3 ? 0x0f : 0x07;
// join the rest
while (c_len > 1 && i < len) {
c = (c << 6) | (buf[i++] & 0x3f);
c_len--;
}
// terminated by end of string?
if (c_len > 1) { utf16buf[out++] = 0xfffd; continue; }
if (c < 0x10000) {
utf16buf[out++] = c;
} else {
c -= 0x10000;
utf16buf[out++] = 0xd800 | ((c >> 10) & 0x3ff);
utf16buf[out++] = 0xdc00 | (c & 0x3ff);
}
}
// shrinkBuf(utf16buf, out)
if (utf16buf.length !== out) {
if (utf16buf.subarray) {
utf16buf = utf16buf.subarray(0, out);
} else {
utf16buf.length = out;
}
}
// return String.fromCharCode.apply(null, utf16buf);
return utils.applyFromCharCode(utf16buf);
};
// That's all for the pako functions.
/**
* Transform a javascript string into an array (typed if possible) of bytes,
* UTF-8 encoded.
* @param {String} str the string to encode
* @return {Array|Uint8Array|Buffer} the UTF-8 encoded string.
*/
exports.utf8encode = function utf8encode(str) {
if (support.nodebuffer) {
return nodeBuffer(str, "utf-8");
}
return string2buf(str);
};
/**
* Transform a bytes array (or a representation) representing an UTF-8 encoded
* string into a javascript string.
* @param {Array|Uint8Array|Buffer} buf the data de decode
* @return {String} the decoded string.
*/
exports.utf8decode = function utf8decode(buf) {
if (support.nodebuffer) {
return utils.transformTo("nodebuffer", buf).toString("utf-8");
}
buf = utils.transformTo(support.uint8array ? "uint8array" : "array", buf);
// return buf2string(buf);
// Chrome prefers to work with "small" chunks of data
// for the method buf2string.
// Firefox and Chrome has their own shortcut, IE doesn't seem to really care.
var result = [], k = 0, len = buf.length, chunk = 65536;
while (k < len) {
var nextBoundary = utf8border(buf, Math.min(k + chunk, len));
if (support.uint8array) {
result.push(buf2string(buf.subarray(k, nextBoundary)));
} else {
result.push(buf2string(buf.slice(k, nextBoundary)));
}
k = nextBoundary;
}
return result.join("");
};
// vim: set shiftwidth=4 softtabstop=4:
}, { "./nodeBuffer": 21, "./support": 27, "./utils": 31}], 31: [function (require, module, exports) {
'use strict';
var support = require('./support');
var compressions = require('./compressions');
var nodeBuffer = require('./nodeBuffer');
/**
* Convert a string to a "binary string" : a string containing only char codes between 0 and 255.
* @param {string} str the string to transform.
* @return {String} the binary string.
*/
exports.string2binary = function (str) {
var result = "";
for (var i = 0; i < str.length; i++) {
result += String.fromCharCode(str.charCodeAt(i) & 0xff);
}
return result;
};
exports.arrayBuffer2Blob = function (buffer, mimeType) {
exports.checkSupport("blob");
mimeType = mimeType || 'application/zip';
try {
// Blob constructor
return new Blob([buffer], {
type: mimeType
});
}
catch (e) {
try {
// deprecated, browser only, old way
var Builder = window.BlobBuilder || window.WebKitBlobBuilder || window.MozBlobBuilder || window.MSBlobBuilder;
var builder = new Builder();
builder.append(buffer);
return builder.getBlob(mimeType);
}
catch (e) {
// well, fuck ?!
throw new Error("Bug : can't construct the Blob.");
}
}
};
/**
* The identity function.
* @param {Object} input the input.
* @return {Object} the same input.
*/
function identity(input) {
return input;
}
/**
* Fill in an array with a string.
* @param {String} str the string to use.
* @param {Array|ArrayBuffer|Uint8Array|Buffer} array the array to fill in (will be mutated).
* @return {Array|ArrayBuffer|Uint8Array|Buffer} the updated array.
*/
function stringToArrayLike(str, array) {
for (var i = 0; i < str.length; ++i) {
array[i] = str.charCodeAt(i) & 0xFF;
}
return array;
}
/**
* Transform an array-like object to a string.
* @param {Array|ArrayBuffer|Uint8Array|Buffer} array the array to transform.
* @return {String} the result.
*/
function arrayLikeToString(array) {
// Performances notes :
// --------------------
// String.fromCharCode.apply(null, array) is the fastest, see
// see http://jsperf.com/converting-a-uint8array-to-a-string/2
// but the stack is limited (and we can get huge arrays !).
//
// result += String.fromCharCode(array[i]); generate too many strings !
//
// This code is inspired by http://jsperf.com/arraybuffer-to-string-apply-performance/2
var chunk = 65536;
var result = [],
len = array.length,
type = exports.getTypeOf(array),
k = 0,
canUseApply = true;
try {
switch (type) {
case "uint8array":
String.fromCharCode.apply(null, new Uint8Array(0));
break;
case "nodebuffer":
String.fromCharCode.apply(null, nodeBuffer(0));
break;
}
} catch (e) {
canUseApply = false;
}
// no apply : slow and painful algorithm
// default browser on android 4.*
if (!canUseApply) {
var resultStr = "";
for (var i = 0; i < array.length; i++) {
resultStr += String.fromCharCode(array[i]);
}
return resultStr;
}
while (k < len && chunk > 1) {
try {
if (type === "array" || type === "nodebuffer") {
result.push(String.fromCharCode.apply(null, array.slice(k, Math.min(k + chunk, len))));
}
else {
result.push(String.fromCharCode.apply(null, array.subarray(k, Math.min(k + chunk, len))));
}
k += chunk;
}
catch (e) {
chunk = Math.floor(chunk / 2);
}
}
return result.join("");
}
exports.applyFromCharCode = arrayLikeToString;
/**
* Copy the data from an array-like to an other array-like.
* @param {Array|ArrayBuffer|Uint8Array|Buffer} arrayFrom the origin array.
* @param {Array|ArrayBuffer|Uint8Array|Buffer} arrayTo the destination array which will be mutated.
* @return {Array|ArrayBuffer|Uint8Array|Buffer} the updated destination array.
*/
function arrayLikeToArrayLike(arrayFrom, arrayTo) {
for (var i = 0; i < arrayFrom.length; i++) {
arrayTo[i] = arrayFrom[i];
}
return arrayTo;
}
// a matrix containing functions to transform everything into everything.
var transform = {};
// string to ?
transform["string"] = {
"string": identity,
"array": function (input) {
return stringToArrayLike(input, new Array(input.length));
},
"arraybuffer": function (input) {
return transform["string"]["uint8array"](input).buffer;
},
"uint8array": function (input) {
return stringToArrayLike(input, new Uint8Array(input.length));
},
"nodebuffer": function (input) {
return stringToArrayLike(input, nodeBuffer(input.length));
}
};
// array to ?
transform["array"] = {
"string": arrayLikeToString,
"array": identity,
"arraybuffer": function (input) {
return (new Uint8Array(input)).buffer;
},
"uint8array": function (input) {
return new Uint8Array(input);
},
"nodebuffer": function (input) {
return nodeBuffer(input);
}
};
// arraybuffer to ?
transform["arraybuffer"] = {
"string": function (input) {
return arrayLikeToString(new Uint8Array(input));
},
"array": function (input) {
return arrayLikeToArrayLike(new Uint8Array(input), new Array(input.byteLength));
},
"arraybuffer": identity,
"uint8array": function (input) {
return new Uint8Array(input);
},
"nodebuffer": function (input) {
return nodeBuffer(new Uint8Array(input));
}
};
// uint8array to ?
transform["uint8array"] = {
"string": arrayLikeToString,
"array": function (input) {
return arrayLikeToArrayLike(input, new Array(input.length));
},
"arraybuffer": function (input) {
return input.buffer;
},
"uint8array": identity,
"nodebuffer": function (input) {
return nodeBuffer(input);
}
};
// nodebuffer to ?
transform["nodebuffer"] = {
"string": arrayLikeToString,
"array": function (input) {
return arrayLikeToArrayLike(input, new Array(input.length));
},
"arraybuffer": function (input) {
return transform["nodebuffer"]["uint8array"](input).buffer;
},
"uint8array": function (input) {
return arrayLikeToArrayLike(input, new Uint8Array(input.length));
},
"nodebuffer": identity
};
/**
* Transform an input into any type.
* The supported output type are : string, array, uint8array, arraybuffer, nodebuffer.
* If no output type is specified, the unmodified input will be returned.
* @param {String} outputType the output type.
* @param {String|Array|ArrayBuffer|Uint8Array|Buffer} input the input to convert.
* @throws {Error} an Error if the browser doesn't support the requested output type.
*/
exports.transformTo = function (outputType, input) {
if (!input) {
// undefined, null, etc
// an empty string won't harm.
input = "";
}
if (!outputType) {
return input;
}
exports.checkSupport(outputType);
var inputType = exports.getTypeOf(input);
var result = transform[inputType][outputType](input);
return result;
};
/**
* Return the type of the input.
* The type will be in a format valid for JSZip.utils.transformTo : string, array, uint8array, arraybuffer.
* @param {Object} input the input to identify.
* @return {String} the (lowercase) type of the input.
*/
exports.getTypeOf = function (input) {
if (typeof input === "string") {
return "string";
}
if (Object.prototype.toString.call(input) === "[object Array]") {
return "array";
}
if (support.nodebuffer && nodeBuffer.test(input)) {
return "nodebuffer";
}
if (support.uint8array && input instanceof Uint8Array) {
return "uint8array";
}
if (support.arraybuffer && input instanceof ArrayBuffer) {
return "arraybuffer";
}
};
/**
* Throw an exception if the type is not supported.
* @param {String} type the type to check.
* @throws {Error} an Error if the browser doesn't support the requested type.
*/
exports.checkSupport = function (type) {
var supported = support[type.toLowerCase()];
if (!supported) {
throw new Error(type + " is not supported by this browser");
}
};
exports.MAX_VALUE_16BITS = 65535;
exports.MAX_VALUE_32BITS = -1; // well, "\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF" is parsed as -1
/**
* Prettify a string read as binary.
* @param {string} str the string to prettify.
* @return {string} a pretty string.
*/
exports.pretty = function (str) {
var res = '',
code, i;
for (i = 0; i < (str || "").length; i++) {
code = str.charCodeAt(i);
res += '\\x' + (code < 16 ? "0" : "") + code.toString(16).toUpperCase();
}
return res;
};
/**
* Find a compression registered in JSZip.
* @param {string} compressionMethod the method magic to find.
* @return {Object|null} the JSZip compression object, null if none found.
*/
exports.findCompression = function (compressionMethod) {
for (var method in compressions) {
if (!compressions.hasOwnProperty(method)) {
continue;
}
if (compressions[method].magic === compressionMethod) {
return compressions[method];
}
}
return null;
};
/**
* Cross-window, cross-Node-context regular expression detection
* @param {Object} object Anything
* @return {Boolean} true if the object is a regular expression,
* false otherwise
*/
exports.isRegExp = function (object) {
return Object.prototype.toString.call(object) === "[object RegExp]";
};
}, { "./compressions": 13, "./nodeBuffer": 21, "./support": 27}], 32: [function (require, module, exports) {
'use strict';
var StringReader = require('./stringReader');
var NodeBufferReader = require('./nodeBufferReader');
var Uint8ArrayReader = require('./uint8ArrayReader');
var utils = require('./utils');
var sig = require('./signature');
var ZipEntry = require('./zipEntry');
var support = require('./support');
var jszipProto = require('./object');
// class ZipEntries {{{
/**
* All the entries in the zip file.
* @constructor
* @param {String|ArrayBuffer|Uint8Array} data the binary stream to load.
* @param {Object} loadOptions Options for loading the stream.
*/
function ZipEntries(data, loadOptions) {
this.files = [];
this.loadOptions = loadOptions;
if (data) {
this.load(data);
}
}
ZipEntries.prototype = {
/**
* Check that the reader is on the speficied signature.
* @param {string} expectedSignature the expected signature.
* @throws {Error} if it is an other signature.
*/
checkSignature: function (expectedSignature) {
var signature = this.reader.readString(4);
if (signature !== expectedSignature) {
throw new Error("Corrupted zip or bug : unexpected signature " + "(" + utils.pretty(signature) + ", expected " + utils.pretty(expectedSignature) + ")");
}
},
/**
* Read the end of the central directory.
*/
readBlockEndOfCentral: function () {
this.diskNumber = this.reader.readInt(2);
this.diskWithCentralDirStart = this.reader.readInt(2);
this.centralDirRecordsOnThisDisk = this.reader.readInt(2);
this.centralDirRecords = this.reader.readInt(2);
this.centralDirSize = this.reader.readInt(4);
this.centralDirOffset = this.reader.readInt(4);
this.zipCommentLength = this.reader.readInt(2);
// warning : the encoding depends of the system locale
// On a linux machine with LANG=en_US.utf8, this field is utf8 encoded.
// On a windows machine, this field is encoded with the localized windows code page.
this.zipComment = this.reader.readString(this.zipCommentLength);
// To get consistent behavior with the generation part, we will assume that
// this is utf8 encoded.
this.zipComment = jszipProto.utf8decode(this.zipComment);
},
/**
* Read the end of the Zip 64 central directory.
* Not merged with the method readEndOfCentral :
* The end of central can coexist with its Zip64 brother,
* I don't want to read the wrong number of bytes !
*/
readBlockZip64EndOfCentral: function () {
this.zip64EndOfCentralSize = this.reader.readInt(8);
this.versionMadeBy = this.reader.readString(2);
this.versionNeeded = this.reader.readInt(2);
this.diskNumber = this.reader.readInt(4);
this.diskWithCentralDirStart = this.reader.readInt(4);
this.centralDirRecordsOnThisDisk = this.reader.readInt(8);
this.centralDirRecords = this.reader.readInt(8);
this.centralDirSize = this.reader.readInt(8);
this.centralDirOffset = this.reader.readInt(8);
this.zip64ExtensibleData = {};
var extraDataSize = this.zip64EndOfCentralSize - 44,
index = 0,
extraFieldId,
extraFieldLength,
extraFieldValue;
while (index < extraDataSize) {
extraFieldId = this.reader.readInt(2);
extraFieldLength = this.reader.readInt(4);
extraFieldValue = this.reader.readString(extraFieldLength);
this.zip64ExtensibleData[extraFieldId] = {
id: extraFieldId,
length: extraFieldLength,
value: extraFieldValue
};
}
},
/**
* Read the end of the Zip 64 central directory locator.
*/
readBlockZip64EndOfCentralLocator: function () {
this.diskWithZip64CentralDirStart = this.reader.readInt(4);
this.relativeOffsetEndOfZip64CentralDir = this.reader.readInt(8);
this.disksCount = this.reader.readInt(4);
if (this.disksCount > 1) {
throw new Error("Multi-volumes zip are not supported");
}
},
/**
* Read the local files, based on the offset read in the central part.
*/
readLocalFiles: function () {
var i, file;
for (i = 0; i < this.files.length; i++) {
file = this.files[i];
this.reader.setIndex(file.localHeaderOffset);
this.checkSignature(sig.LOCAL_FILE_HEADER);
file.readLocalPart(this.reader);
file.handleUTF8();
file.processAttributes();
}
},
/**
* Read the central directory.
*/
readCentralDir: function () {
var file;
this.reader.setIndex(this.centralDirOffset);
while (this.reader.readString(4) === sig.CENTRAL_FILE_HEADER) {
file = new ZipEntry({
zip64: this.zip64
}, this.loadOptions);
file.readCentralPart(this.reader);
this.files.push(file);
}
},
/**
* Read the end of central directory.
*/
readEndOfCentral: function () {
var offset = this.reader.lastIndexOfSignature(sig.CENTRAL_DIRECTORY_END);
if (offset === -1) {
// Check if the content is a truncated zip or complete garbage.
// A "LOCAL_FILE_HEADER" is not required at the beginning (auto
// extractible zip for example) but it can give a good hint.
// If an ajax request was used without responseType, we will also
// get unreadable data.
var isGarbage = true;
try {
this.reader.setIndex(0);
this.checkSignature(sig.LOCAL_FILE_HEADER);
isGarbage = false;
} catch (e) { }
if (isGarbage) {
throw new Error("Can't find end of central directory : is this a zip file ? " +
"If it is, see http://stuk.github.io/jszip/documentation/howto/read_zip.html");
} else {
throw new Error("Corrupted zip : can't find end of central directory");
}
}
this.reader.setIndex(offset);
this.checkSignature(sig.CENTRAL_DIRECTORY_END);
this.readBlockEndOfCentral();
/* extract from the zip spec :
4) If one of the fields in the end of central directory
record is too small to hold required data, the field
should be set to -1 (0xFFFF or 0xFFFFFFFF) and the
ZIP64 format record should be created.
5) The end of central directory record and the
Zip64 end of central directory locator record must
reside on the same disk when splitting or spanning
an archive.
*/
if (this.diskNumber === utils.MAX_VALUE_16BITS || this.diskWithCentralDirStart === utils.MAX_VALUE_16BITS || this.centralDirRecordsOnThisDisk === utils.MAX_VALUE_16BITS || this.centralDirRecords === utils.MAX_VALUE_16BITS || this.centralDirSize === utils.MAX_VALUE_32BITS || this.centralDirOffset === utils.MAX_VALUE_32BITS) {
this.zip64 = true;
/*
Warning : the zip64 extension is supported, but ONLY if the 64bits integer read from
the zip file can fit into a 32bits integer. This cannot be solved : Javascript represents
all numbers as 64-bit double precision IEEE 754 floating point numbers.
So, we have 53bits for integers and bitwise operations treat everything as 32bits.
see https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Operators/Bitwise_Operators
and http://www.ecma-international.org/publications/files/ECMA-ST/ECMA-262.pdf section 8.5
*/
// should look for a zip64 EOCD locator
offset = this.reader.lastIndexOfSignature(sig.ZIP64_CENTRAL_DIRECTORY_LOCATOR);
if (offset === -1) {
throw new Error("Corrupted zip : can't find the ZIP64 end of central directory locator");
}
this.reader.setIndex(offset);
this.checkSignature(sig.ZIP64_CENTRAL_DIRECTORY_LOCATOR);
this.readBlockZip64EndOfCentralLocator();
// now the zip64 EOCD record
this.reader.setIndex(this.relativeOffsetEndOfZip64CentralDir);
this.checkSignature(sig.ZIP64_CENTRAL_DIRECTORY_END);
this.readBlockZip64EndOfCentral();
}
},
prepareReader: function (data) {
var type = utils.getTypeOf(data);
if (type === "string" && !support.uint8array) {
this.reader = new StringReader(data, this.loadOptions.optimizedBinaryString);
}
else if (type === "nodebuffer") {
this.reader = new NodeBufferReader(data);
}
else {
this.reader = new Uint8ArrayReader(utils.transformTo("uint8array", data));
}
},
/**
* Read a zip file and create ZipEntries.
* @param {String|ArrayBuffer|Uint8Array|Buffer} data the binary string representing a zip file.
*/
load: function (data) {
this.prepareReader(data);
this.readEndOfCentral();
this.readCentralDir();
this.readLocalFiles();
}
};
// }}} end of ZipEntries
module.exports = ZipEntries;
}, { "./nodeBufferReader": 22, "./object": 23, "./signature": 24, "./stringReader": 25, "./support": 27, "./uint8ArrayReader": 28, "./utils": 31, "./zipEntry": 33}], 33: [function (require, module, exports) {
'use strict';
var StringReader = require('./stringReader');
var utils = require('./utils');
var CompressedObject = require('./compressedObject');
var jszipProto = require('./object');
var MADE_BY_DOS = 0x00;
var MADE_BY_UNIX = 0x03;
// class ZipEntry {{{
/**
* An entry in the zip file.
* @constructor
* @param {Object} options Options of the current file.
* @param {Object} loadOptions Options for loading the stream.
*/
function ZipEntry(options, loadOptions) {
this.options = options;
this.loadOptions = loadOptions;
}
ZipEntry.prototype = {
/**
* say if the file is encrypted.
* @return {boolean} true if the file is encrypted, false otherwise.
*/
isEncrypted: function () {
// bit 1 is set
return (this.bitFlag & 0x0001) === 0x0001;
},
/**
* say if the file has utf-8 filename/comment.
* @return {boolean} true if the filename/comment is in utf-8, false otherwise.
*/
useUTF8: function () {
// bit 11 is set
return (this.bitFlag & 0x0800) === 0x0800;
},
/**
* Prepare the function used to generate the compressed content from this ZipFile.
* @param {DataReader} reader the reader to use.
* @param {number} from the offset from where we should read the data.
* @param {number} length the length of the data to read.
* @return {Function} the callback to get the compressed content (the type depends of the DataReader class).
*/
prepareCompressedContent: function (reader, from, length) {
return function () {
var previousIndex = reader.index;
reader.setIndex(from);
var compressedFileData = reader.readData(length);
reader.setIndex(previousIndex);
return compressedFileData;
};
},
/**
* Prepare the function used to generate the uncompressed content from this ZipFile.
* @param {DataReader} reader the reader to use.
* @param {number} from the offset from where we should read the data.
* @param {number} length the length of the data to read.
* @param {JSZip.compression} compression the compression used on this file.
* @param {number} uncompressedSize the uncompressed size to expect.
* @return {Function} the callback to get the uncompressed content (the type depends of the DataReader class).
*/
prepareContent: function (reader, from, length, compression, uncompressedSize) {
return function () {
var compressedFileData = utils.transformTo(compression.uncompressInputType, this.getCompressedContent());
var uncompressedFileData = compression.uncompress(compressedFileData);
if (uncompressedFileData.length !== uncompressedSize) {
throw new Error("Bug : uncompressed data size mismatch");
}
return uncompressedFileData;
};
},
/**
* Read the local part of a zip file and add the info in this object.
* @param {DataReader} reader the reader to use.
*/
readLocalPart: function (reader) {
var compression, localExtraFieldsLength;
// we already know everything from the central dir !
// If the central dir data are false, we are doomed.
// On the bright side, the local part is scary : zip64, data descriptors, both, etc.
// The less data we get here, the more reliable this should be.
// Let's skip the whole header and dash to the data !
reader.skip(22);
// in some zip created on windows, the filename stored in the central dir contains \ instead of /.
// Strangely, the filename here is OK.
// I would love to treat these zip files as corrupted (see http://www.info-zip.org/FAQ.html#backslashes
// or APPNOTE#4.4.17.1, "All slashes MUST be forward slashes '/'") but there are a lot of bad zip generators...
// Search "unzip mismatching "local" filename continuing with "central" filename version" on
// the internet.
//
// I think I see the logic here : the central directory is used to display
// content and the local directory is used to extract the files. Mixing / and \
// may be used to display \ to windows users and use / when extracting the files.
// Unfortunately, this lead also to some issues : http://seclists.org/fulldisclosure/2009/Sep/394
this.fileNameLength = reader.readInt(2);
localExtraFieldsLength = reader.readInt(2); // can't be sure this will be the same as the central dir
this.fileName = reader.readString(this.fileNameLength);
reader.skip(localExtraFieldsLength);
if (this.compressedSize == -1 || this.uncompressedSize == -1) {
throw new Error("Bug or corrupted zip : didn't get enough informations from the central directory " + "(compressedSize == -1 || uncompressedSize == -1)");
}
compression = utils.findCompression(this.compressionMethod);
if (compression === null) { // no compression found
throw new Error("Corrupted zip : compression " + utils.pretty(this.compressionMethod) + " unknown (inner file : " + this.fileName + ")");
}
this.decompressed = new CompressedObject();
this.decompressed.compressedSize = this.compressedSize;
this.decompressed.uncompressedSize = this.uncompressedSize;
this.decompressed.crc32 = this.crc32;
this.decompressed.compressionMethod = this.compressionMethod;
this.decompressed.getCompressedContent = this.prepareCompressedContent(reader, reader.index, this.compressedSize, compression);
this.decompressed.getContent = this.prepareContent(reader, reader.index, this.compressedSize, compression, this.uncompressedSize);
// we need to compute the crc32...
if (this.loadOptions.checkCRC32) {
this.decompressed = utils.transformTo("string", this.decompressed.getContent());
if (jszipProto.crc32(this.decompressed) !== this.crc32) {
throw new Error("Corrupted zip : CRC32 mismatch");
}
}
},
/**
* Read the central part of a zip file and add the info in this object.
* @param {DataReader} reader the reader to use.
*/
readCentralPart: function (reader) {
this.versionMadeBy = reader.readInt(2);
this.versionNeeded = reader.readInt(2);
this.bitFlag = reader.readInt(2);
this.compressionMethod = reader.readString(2);
this.date = reader.readDate();
this.crc32 = reader.readInt(4);
this.compressedSize = reader.readInt(4);
this.uncompressedSize = reader.readInt(4);
this.fileNameLength = reader.readInt(2);
this.extraFieldsLength = reader.readInt(2);
this.fileCommentLength = reader.readInt(2);
this.diskNumberStart = reader.readInt(2);
this.internalFileAttributes = reader.readInt(2);
this.externalFileAttributes = reader.readInt(4);
this.localHeaderOffset = reader.readInt(4);
if (this.isEncrypted()) {
throw new Error("Encrypted zip are not supported");
}
this.fileName = reader.readString(this.fileNameLength);
this.readExtraFields(reader);
this.parseZIP64ExtraField(reader);
this.fileComment = reader.readString(this.fileCommentLength);
},
/**
* Parse the external file attributes and get the unix/dos permissions.
*/
processAttributes: function () {
this.unixPermissions = null;
this.dosPermissions = null;
var madeBy = this.versionMadeBy >> 8;
// Check if we have the DOS directory flag set.
// We look for it in the DOS and UNIX permissions
// but some unknown platform could set it as a compatibility flag.
this.dir = this.externalFileAttributes & 0x0010 ? true : false;
if (madeBy === MADE_BY_DOS) {
// first 6 bits (0 to 5)
this.dosPermissions = this.externalFileAttributes & 0x3F;
}
if (madeBy === MADE_BY_UNIX) {
this.unixPermissions = (this.externalFileAttributes >> 16) & 0xFFFF;
// the octal permissions are in (this.unixPermissions & 0x01FF).toString(8);
}
// fail safe : if the name ends with a / it probably means a folder
if (!this.dir && this.fileName.slice(-1) === '/') {
this.dir = true;
}
},
/**
* Parse the ZIP64 extra field and merge the info in the current ZipEntry.
* @param {DataReader} reader the reader to use.
*/
parseZIP64ExtraField: function (reader) {
if (!this.extraFields[0x0001]) {
return;
}
// should be something, preparing the extra reader
var extraReader = new StringReader(this.extraFields[0x0001].value);
// I really hope that these 64bits integer can fit in 32 bits integer, because js
// won't let us have more.
if (this.uncompressedSize === utils.MAX_VALUE_32BITS) {
this.uncompressedSize = extraReader.readInt(8);
}
if (this.compressedSize === utils.MAX_VALUE_32BITS) {
this.compressedSize = extraReader.readInt(8);
}
if (this.localHeaderOffset === utils.MAX_VALUE_32BITS) {
this.localHeaderOffset = extraReader.readInt(8);
}
if (this.diskNumberStart === utils.MAX_VALUE_32BITS) {
this.diskNumberStart = extraReader.readInt(4);
}
},
/**
* Read the central part of a zip file and add the info in this object.
* @param {DataReader} reader the reader to use.
*/
readExtraFields: function (reader) {
var start = reader.index,
extraFieldId,
extraFieldLength,
extraFieldValue;
this.extraFields = this.extraFields || {};
while (reader.index < start + this.extraFieldsLength) {
extraFieldId = reader.readInt(2);
extraFieldLength = reader.readInt(2);
extraFieldValue = reader.readString(extraFieldLength);
this.extraFields[extraFieldId] = {
id: extraFieldId,
length: extraFieldLength,
value: extraFieldValue
};
}
},
/**
* Apply an UTF8 transformation if needed.
*/
handleUTF8: function () {
if (this.useUTF8()) {
this.fileName = jszipProto.utf8decode(this.fileName);
this.fileComment = jszipProto.utf8decode(this.fileComment);
} else {
var upath = this.findExtraFieldUnicodePath();
if (upath !== null) {
this.fileName = upath;
}
var ucomment = this.findExtraFieldUnicodeComment();
if (ucomment !== null) {
this.fileComment = ucomment;
}
}
},
/**
* Find the unicode path declared in the extra field, if any.
* @return {String} the unicode path, null otherwise.
*/
findExtraFieldUnicodePath: function () {
var upathField = this.extraFields[0x7075];
if (upathField) {
var extraReader = new StringReader(upathField.value);
// wrong version
if (extraReader.readInt(1) !== 1) {
return null;
}
// the crc of the filename changed, this field is out of date.
if (jszipProto.crc32(this.fileName) !== extraReader.readInt(4)) {
return null;
}
return jszipProto.utf8decode(extraReader.readString(upathField.length - 5));
}
return null;
},
/**
* Find the unicode comment declared in the extra field, if any.
* @return {String} the unicode comment, null otherwise.
*/
findExtraFieldUnicodeComment: function () {
var ucommentField = this.extraFields[0x6375];
if (ucommentField) {
var extraReader = new StringReader(ucommentField.value);
// wrong version
if (extraReader.readInt(1) !== 1) {
return null;
}
// the crc of the comment changed, this field is out of date.
if (jszipProto.crc32(this.fileComment) !== extraReader.readInt(4)) {
return null;
}
return jszipProto.utf8decode(extraReader.readString(ucommentField.length - 5));
}
return null;
}
};
module.exports = ZipEntry;
}, { "./compressedObject": 12, "./object": 23, "./stringReader": 25, "./utils": 31}], 34: [function (require, module, exports) {
'use strict';
var immediate = require('immediate');
/* istanbul ignore next */
function INTERNAL() { }
var handlers = {};
var REJECTED = ['REJECTED'];
var FULFILLED = ['FULFILLED'];
var PENDING = ['PENDING'];
module.exports = exports = Promise;
function Promise(resolver) {
if (typeof resolver !== 'function') {
throw new TypeError('resolver must be a function');
}
this.state = PENDING;
this.queue = [];
this.outcome = void 0;
if (resolver !== INTERNAL) {
safelyResolveThenable(this, resolver);
}
}
Promise.prototype["catch"] = function (onRejected) {
return this.then(null, onRejected);
};
Promise.prototype.then = function (onFulfilled, onRejected) {
if (typeof onFulfilled !== 'function' && this.state === FULFILLED ||
typeof onRejected !== 'function' && this.state === REJECTED) {
return this;
}
var promise = new this.constructor(INTERNAL);
if (this.state !== PENDING) {
var resolver = this.state === FULFILLED ? onFulfilled : onRejected;
unwrap(promise, resolver, this.outcome);
} else {
this.queue.push(new QueueItem(promise, onFulfilled, onRejected));
}
return promise;
};
function QueueItem(promise, onFulfilled, onRejected) {
this.promise = promise;
if (typeof onFulfilled === 'function') {
this.onFulfilled = onFulfilled;
this.callFulfilled = this.otherCallFulfilled;
}
if (typeof onRejected === 'function') {
this.onRejected = onRejected;
this.callRejected = this.otherCallRejected;
}
}
QueueItem.prototype.callFulfilled = function (value) {
handlers.resolve(this.promise, value);
};
QueueItem.prototype.otherCallFulfilled = function (value) {
unwrap(this.promise, this.onFulfilled, value);
};
QueueItem.prototype.callRejected = function (value) {
handlers.reject(this.promise, value);
};
QueueItem.prototype.otherCallRejected = function (value) {
unwrap(this.promise, this.onRejected, value);
};
function unwrap(promise, func, value) {
immediate(function () {
var returnValue;
try {
returnValue = func(value);
} catch (e) {
return handlers.reject(promise, e);
}
if (returnValue === promise) {
handlers.reject(promise, new TypeError('Cannot resolve promise with itself'));
} else {
handlers.resolve(promise, returnValue);
}
});
}
handlers.resolve = function (self, value) {
var result = tryCatch(getThen, value);
if (result.status === 'error') {
return handlers.reject(self, result.value);
}
var thenable = result.value;
if (thenable) {
safelyResolveThenable(self, thenable);
} else {
self.state = FULFILLED;
self.outcome = value;
var i = -1;
var len = self.queue.length;
while (++i < len) {
self.queue[i].callFulfilled(value);
}
}
return self;
};
handlers.reject = function (self, error) {
self.state = REJECTED;
self.outcome = error;
var i = -1;
var len = self.queue.length;
while (++i < len) {
self.queue[i].callRejected(error);
}
return self;
};
function getThen(obj) {
// Make sure we only access the accessor once as required by the spec
var then = obj && obj.then;
if (obj && typeof obj === 'object' && typeof then === 'function') {
return function appyThen() {
then.apply(obj, arguments);
};
}
}
function safelyResolveThenable(self, thenable) {
// Either fulfill, reject or reject with error
var called = false;
function onError(value) {
if (called) {
return;
}
called = true;
handlers.reject(self, value);
}
function onSuccess(value) {
if (called) {
return;
}
called = true;
handlers.resolve(self, value);
}
function tryToUnwrap() {
thenable(onSuccess, onError);
}
var result = tryCatch(tryToUnwrap);
if (result.status === 'error') {
onError(result.value);
}
}
function tryCatch(func, value) {
var out = {};
try {
out.value = func(value);
out.status = 'success';
} catch (e) {
out.status = 'error';
out.value = e;
}
return out;
}
exports.resolve = resolve;
function resolve(value) {
if (value instanceof this) {
return value;
}
return handlers.resolve(new this(INTERNAL), value);
}
exports.reject = reject;
function reject(reason) {
var promise = new this(INTERNAL);
return handlers.reject(promise, reason);
}
exports.all = all;
function all(iterable) {
var self = this;
if (Object.prototype.toString.call(iterable) !== '[object Array]') {
return this.reject(new TypeError('must be an array'));
}
var len = iterable.length;
var called = false;
if (!len) {
return this.resolve([]);
}
var values = new Array(len);
var resolved = 0;
var i = -1;
var promise = new this(INTERNAL);
while (++i < len) {
allResolver(iterable[i], i);
}
return promise;
function allResolver(value, i) {
self.resolve(value).then(resolveFromAll, function (error) {
if (!called) {
called = true;
handlers.reject(promise, error);
}
});
function resolveFromAll(outValue) {
values[i] = outValue;
if (++resolved === len && !called) {
called = true;
handlers.resolve(promise, values);
}
}
}
}
exports.race = race;
function race(iterable) {
var self = this;
if (Object.prototype.toString.call(iterable) !== '[object Array]') {
return this.reject(new TypeError('must be an array'));
}
var len = iterable.length;
var called = false;
if (!len) {
return this.resolve([]);
}
var i = -1;
var promise = new this(INTERNAL);
while (++i < len) {
resolver(iterable[i]);
}
return promise;
function resolver(value) {
self.resolve(value).then(function (response) {
if (!called) {
called = true;
handlers.resolve(promise, response);
}
}, function (error) {
if (!called) {
called = true;
handlers.reject(promise, error);
}
});
}
}
}, { "immediate": 9}], 35: [function (require, module, exports) {
; (function () { // closure for web browsers
if (typeof module === 'object' && module.exports) {
module.exports = LRUCache
} else {
// just set the global for non-node platforms.
this.LRUCache = LRUCache
}
function hOP(obj, key) {
return Object.prototype.hasOwnProperty.call(obj, key)
}
function naiveLength() { return 1 }
var didTypeWarning = false
function typeCheckKey(key) {
if (!didTypeWarning && typeof key !== 'string' && typeof key !== 'number') {
didTypeWarning = true
console.error(new TypeError("LRU: key must be a string or number. Almost certainly a bug! " + typeof key).stack)
}
}
function LRUCache(options) {
if (!(this instanceof LRUCache))
return new LRUCache(options)
if (typeof options === 'number')
options = { max: options }
if (!options)
options = {}
this._max = options.max
// Kind of weird to have a default max of Infinity, but oh well.
if (!this._max || !(typeof this._max === "number") || this._max <= 0)
this._max = Infinity
this._lengthCalculator = options.length || naiveLength
if (typeof this._lengthCalculator !== "function")
this._lengthCalculator = naiveLength
this._allowStale = options.stale || false
this._maxAge = options.maxAge || null
this._dispose = options.dispose
this.reset()
}
// resize the cache when the max changes.
Object.defineProperty(LRUCache.prototype, "max",
{ set: function (mL) {
if (!mL || !(typeof mL === "number") || mL <= 0) mL = Infinity
this._max = mL
if (this._length > this._max) trim(this)
}
, get: function () { return this._max }
, enumerable: true
})
// resize the cache when the lengthCalculator changes.
Object.defineProperty(LRUCache.prototype, "lengthCalculator",
{ set: function (lC) {
if (typeof lC !== "function") {
this._lengthCalculator = naiveLength
this._length = this._itemCount
for (var key in this._cache) {
this._cache[key].length = 1
}
} else {
this._lengthCalculator = lC
this._length = 0
for (var key in this._cache) {
this._cache[key].length = this._lengthCalculator(this._cache[key].value)
this._length += this._cache[key].length
}
}
if (this._length > this._max) trim(this)
}
, get: function () { return this._lengthCalculator }
, enumerable: true
})
Object.defineProperty(LRUCache.prototype, "length",
{ get: function () { return this._length }
, enumerable: true
})
Object.defineProperty(LRUCache.prototype, "itemCount",
{ get: function () { return this._itemCount }
, enumerable: true
})
LRUCache.prototype.forEach = function (fn, thisp) {
thisp = thisp || this
var i = 0
var itemCount = this._itemCount
for (var k = this._mru - 1; k >= 0 && i < itemCount; k--) if (this._lruList[k]) {
i++
var hit = this._lruList[k]
if (isStale(this, hit)) {
del(this, hit)
if (!this._allowStale) hit = undefined
}
if (hit) {
fn.call(thisp, hit.value, hit.key, this)
}
}
}
LRUCache.prototype.keys = function () {
var keys = new Array(this._itemCount)
var i = 0
for (var k = this._mru - 1; k >= 0 && i < this._itemCount; k--) if (this._lruList[k]) {
var hit = this._lruList[k]
keys[i++] = hit.key
}
return keys
}
LRUCache.prototype.values = function () {
var values = new Array(this._itemCount)
var i = 0
for (var k = this._mru - 1; k >= 0 && i < this._itemCount; k--) if (this._lruList[k]) {
var hit = this._lruList[k]
values[i++] = hit.value
}
return values
}
LRUCache.prototype.reset = function () {
if (this._dispose && this._cache) {
for (var k in this._cache) {
this._dispose(k, this._cache[k].value)
}
}
this._cache = Object.create(null) // hash of items by key
this._lruList = Object.create(null) // list of items in order of use recency
this._mru = 0 // most recently used
this._lru = 0 // least recently used
this._length = 0 // number of items in the list
this._itemCount = 0
}
LRUCache.prototype.dump = function () {
var arr = []
var i = 0
for (var k = this._mru - 1; k >= 0 && i < this._itemCount; k--) if (this._lruList[k]) {
var hit = this._lruList[k]
if (!isStale(this, hit)) {
//Do not store staled hits
++i
arr.push({
k: hit.key,
v: hit.value,
e: hit.now + (hit.maxAge || 0)
});
}
}
//arr has the most read first
return arr
}
LRUCache.prototype.dumpLru = function () {
return this._lruList
}
LRUCache.prototype.set = function (key, value, maxAge) {
maxAge = maxAge || this._maxAge
typeCheckKey(key)
var now = maxAge ? Date.now() : 0
var len = this._lengthCalculator(value)
if (hOP(this._cache, key)) {
if (len > this._max) {
del(this, this._cache[key])
return false
}
// dispose of the old one before overwriting
if (this._dispose)
this._dispose(key, this._cache[key].value)
this._cache[key].now = now
this._cache[key].maxAge = maxAge
this._cache[key].value = value
this._length += (len - this._cache[key].length)
this._cache[key].length = len
this.get(key)
if (this._length > this._max)
trim(this)
return true
}
var hit = new Entry(key, value, this._mru++, len, now, maxAge)
// oversized objects fall out of cache automatically.
if (hit.length > this._max) {
if (this._dispose) this._dispose(key, value)
return false
}
this._length += hit.length
this._lruList[hit.lu] = this._cache[key] = hit
this._itemCount++
if (this._length > this._max)
trim(this)
return true
}
LRUCache.prototype.has = function (key) {
typeCheckKey(key)
if (!hOP(this._cache, key)) return false
var hit = this._cache[key]
if (isStale(this, hit)) {
return false
}
return true
}
LRUCache.prototype.get = function (key) {
typeCheckKey(key)
return get(this, key, true)
}
LRUCache.prototype.peek = function (key) {
typeCheckKey(key)
return get(this, key, false)
}
LRUCache.prototype.pop = function () {
var hit = this._lruList[this._lru]
del(this, hit)
return hit || null
}
LRUCache.prototype.del = function (key) {
typeCheckKey(key)
del(this, this._cache[key])
}
LRUCache.prototype.load = function (arr) {
//reset the cache
this.reset();
var now = Date.now()
//A previous serialized cache has the most recent items first
for (var l = arr.length - 1; l >= 0; l--) {
var hit = arr[l]
typeCheckKey(hit.k)
var expiresAt = hit.e || 0
if (expiresAt === 0) {
//the item was created without expiration in a non aged cache
this.set(hit.k, hit.v)
} else {
var maxAge = expiresAt - now
//dont add already expired items
if (maxAge > 0) this.set(hit.k, hit.v, maxAge)
}
}
}
function get(self, key, doUse) {
typeCheckKey(key)
var hit = self._cache[key]
if (hit) {
if (isStale(self, hit)) {
del(self, hit)
if (!self._allowStale) hit = undefined
} else {
if (doUse) use(self, hit)
}
if (hit) hit = hit.value
}
return hit
}
function isStale(self, hit) {
if (!hit || (!hit.maxAge && !self._maxAge)) return false
var stale = false;
var diff = Date.now() - hit.now
if (hit.maxAge) {
stale = diff > hit.maxAge
} else {
stale = self._maxAge && (diff > self._maxAge)
}
return stale;
}
function use(self, hit) {
shiftLU(self, hit)
hit.lu = self._mru++
self._lruList[hit.lu] = hit
}
function trim(self) {
while (self._lru < self._mru && self._length > self._max)
del(self, self._lruList[self._lru])
}
function shiftLU(self, hit) {
delete self._lruList[hit.lu]
while (self._lru < self._mru && !self._lruList[self._lru]) self._lru++
}
function del(self, hit) {
if (hit) {
if (self._dispose) self._dispose(hit.key, hit.value)
self._length -= hit.length
self._itemCount--
delete self._cache[hit.key]
shiftLU(self, hit)
}
}
// classy, since V8 prefers predictable objects.
function Entry(key, value, lu, length, now, maxAge) {
this.key = key
this.value = value
this.lu = lu
this.length = length
this.now = now
if (maxAge) this.maxAge = maxAge
}
})()
}, {}], 36: [function (require, module, exports) {
/**
* UTM zones are grouped, and assigned to one of a group of 6
* sets.
*
* {int} @private
*/
var NUM_100K_SETS = 6;
/**
* The column letters (for easting) of the lower left value, per
* set.
*
* {string} @private
*/
var SET_ORIGIN_COLUMN_LETTERS = 'AJSAJS';
/**
* The row letters (for northing) of the lower left value, per
* set.
*
* {string} @private
*/
var SET_ORIGIN_ROW_LETTERS = 'AFAFAF';
var A = 65; // A
var I = 73; // I
var O = 79; // O
var V = 86; // V
var Z = 90; // Z
/**
* Conversion of lat/lon to MGRS.
*
* @param {object} ll Object literal with lat and lon properties on a
* WGS84 ellipsoid.
* @param {int} accuracy Accuracy in digits (5 for 1 m, 4 for 10 m, 3 for
* 100 m, 2 for 1000 m or 1 for 10000 m). Optional, default is 5.
* @return {string} the MGRS string for the given location and accuracy.
*/
exports.forward = function (ll, accuracy) {
accuracy = accuracy || 5; // default accuracy 1m
return encode(LLtoUTM({
lat: ll[1],
lon: ll[0]
}), accuracy);
};
/**
* Conversion of MGRS to lat/lon.
*
* @param {string} mgrs MGRS string.
* @return {array} An array with left (longitude), bottom (latitude), right
* (longitude) and top (latitude) values in WGS84, representing the
* bounding box for the provided MGRS reference.
*/
exports.inverse = function (mgrs) {
var bbox = UTMtoLL(decode(mgrs.toUpperCase()));
if (bbox.lat && bbox.lon) {
return [bbox.lon, bbox.lat, bbox.lon, bbox.lat];
}
return [bbox.left, bbox.bottom, bbox.right, bbox.top];
};
exports.toPoint = function (mgrs) {
var bbox = UTMtoLL(decode(mgrs.toUpperCase()));
if (bbox.lat && bbox.lon) {
return [bbox.lon, bbox.lat];
}
return [(bbox.left + bbox.right) / 2, (bbox.top + bbox.bottom) / 2];
};
/**
* Conversion from degrees to radians.
*
* @private
* @param {number} deg the angle in degrees.
* @return {number} the angle in radians.
*/
function degToRad(deg) {
return (deg * (Math.PI / 180.0));
}
/**
* Conversion from radians to degrees.
*
* @private
* @param {number} rad the angle in radians.
* @return {number} the angle in degrees.
*/
function radToDeg(rad) {
return (180.0 * (rad / Math.PI));
}
/**
* Converts a set of Longitude and Latitude co-ordinates to UTM
* using the WGS84 ellipsoid.
*
* @private
* @param {object} ll Object literal with lat and lon properties
* representing the WGS84 coordinate to be converted.
* @return {object} Object literal containing the UTM value with easting,
* northing, zoneNumber and zoneLetter properties, and an optional
* accuracy property in digits. Returns null if the conversion failed.
*/
function LLtoUTM(ll) {
var Lat = ll.lat;
var Long = ll.lon;
var a = 6378137.0; //ellip.radius;
var eccSquared = 0.00669438; //ellip.eccsq;
var k0 = 0.9996;
var LongOrigin;
var eccPrimeSquared;
var N, T, C, A, M;
var LatRad = degToRad(Lat);
var LongRad = degToRad(Long);
var LongOriginRad;
var ZoneNumber;
// (int)
ZoneNumber = Math.floor((Long + 180) / 6) + 1;
//Make sure the longitude 180.00 is in Zone 60
if (Long === 180) {
ZoneNumber = 60;
}
// Special zone for Norway
if (Lat >= 56.0 && Lat < 64.0 && Long >= 3.0 && Long < 12.0) {
ZoneNumber = 32;
}
// Special zones for Svalbard
if (Lat >= 72.0 && Lat < 84.0) {
if (Long >= 0.0 && Long < 9.0) {
ZoneNumber = 31;
}
else if (Long >= 9.0 && Long < 21.0) {
ZoneNumber = 33;
}
else if (Long >= 21.0 && Long < 33.0) {
ZoneNumber = 35;
}
else if (Long >= 33.0 && Long < 42.0) {
ZoneNumber = 37;
}
}
LongOrigin = (ZoneNumber - 1) * 6 - 180 + 3; //+3 puts origin
// in middle of
// zone
LongOriginRad = degToRad(LongOrigin);
eccPrimeSquared = (eccSquared) / (1 - eccSquared);
N = a / Math.sqrt(1 - eccSquared * Math.sin(LatRad) * Math.sin(LatRad));
T = Math.tan(LatRad) * Math.tan(LatRad);
C = eccPrimeSquared * Math.cos(LatRad) * Math.cos(LatRad);
A = Math.cos(LatRad) * (LongRad - LongOriginRad);
M = a * ((1 - eccSquared / 4 - 3 * eccSquared * eccSquared / 64 - 5 * eccSquared * eccSquared * eccSquared / 256) * LatRad - (3 * eccSquared / 8 + 3 * eccSquared * eccSquared / 32 + 45 * eccSquared * eccSquared * eccSquared / 1024) * Math.sin(2 * LatRad) + (15 * eccSquared * eccSquared / 256 + 45 * eccSquared * eccSquared * eccSquared / 1024) * Math.sin(4 * LatRad) - (35 * eccSquared * eccSquared * eccSquared / 3072) * Math.sin(6 * LatRad));
var UTMEasting = (k0 * N * (A + (1 - T + C) * A * A * A / 6.0 + (5 - 18 * T + T * T + 72 * C - 58 * eccPrimeSquared) * A * A * A * A * A / 120.0) + 500000.0);
var UTMNorthing = (k0 * (M + N * Math.tan(LatRad) * (A * A / 2 + (5 - T + 9 * C + 4 * C * C) * A * A * A * A / 24.0 + (61 - 58 * T + T * T + 600 * C - 330 * eccPrimeSquared) * A * A * A * A * A * A / 720.0)));
if (Lat < 0.0) {
UTMNorthing += 10000000.0; //10000000 meter offset for
// southern hemisphere
}
return {
northing: Math.round(UTMNorthing),
easting: Math.round(UTMEasting),
zoneNumber: ZoneNumber,
zoneLetter: getLetterDesignator(Lat)
};
}
/**
* Converts UTM coords to lat/long, using the WGS84 ellipsoid. This is a convenience
* class where the Zone can be specified as a single string eg."60N" which
* is then broken down into the ZoneNumber and ZoneLetter.
*
* @private
* @param {object} utm An object literal with northing, easting, zoneNumber
* and zoneLetter properties. If an optional accuracy property is
* provided (in meters), a bounding box will be returned instead of
* latitude and longitude.
* @return {object} An object literal containing either lat and lon values
* (if no accuracy was provided), or top, right, bottom and left values
* for the bounding box calculated according to the provided accuracy.
* Returns null if the conversion failed.
*/
function UTMtoLL(utm) {
var UTMNorthing = utm.northing;
var UTMEasting = utm.easting;
var zoneLetter = utm.zoneLetter;
var zoneNumber = utm.zoneNumber;
// check the ZoneNummber is valid
if (zoneNumber < 0 || zoneNumber > 60) {
return null;
}
var k0 = 0.9996;
var a = 6378137.0; //ellip.radius;
var eccSquared = 0.00669438; //ellip.eccsq;
var eccPrimeSquared;
var e1 = (1 - Math.sqrt(1 - eccSquared)) / (1 + Math.sqrt(1 - eccSquared));
var N1, T1, C1, R1, D, M;
var LongOrigin;
var mu, phi1Rad;
// remove 500,000 meter offset for longitude
var x = UTMEasting - 500000.0;
var y = UTMNorthing;
// We must know somehow if we are in the Northern or Southern
// hemisphere, this is the only time we use the letter So even
// if the Zone letter isn't exactly correct it should indicate
// the hemisphere correctly
if (zoneLetter < 'N') {
y -= 10000000.0; // remove 10,000,000 meter offset used
// for southern hemisphere
}
// There are 60 zones with zone 1 being at West -180 to -174
LongOrigin = (zoneNumber - 1) * 6 - 180 + 3; // +3 puts origin
// in middle of
// zone
eccPrimeSquared = (eccSquared) / (1 - eccSquared);
M = y / k0;
mu = M / (a * (1 - eccSquared / 4 - 3 * eccSquared * eccSquared / 64 - 5 * eccSquared * eccSquared * eccSquared / 256));
phi1Rad = mu + (3 * e1 / 2 - 27 * e1 * e1 * e1 / 32) * Math.sin(2 * mu) + (21 * e1 * e1 / 16 - 55 * e1 * e1 * e1 * e1 / 32) * Math.sin(4 * mu) + (151 * e1 * e1 * e1 / 96) * Math.sin(6 * mu);
// double phi1 = ProjMath.radToDeg(phi1Rad);
N1 = a / Math.sqrt(1 - eccSquared * Math.sin(phi1Rad) * Math.sin(phi1Rad));
T1 = Math.tan(phi1Rad) * Math.tan(phi1Rad);
C1 = eccPrimeSquared * Math.cos(phi1Rad) * Math.cos(phi1Rad);
R1 = a * (1 - eccSquared) / Math.pow(1 - eccSquared * Math.sin(phi1Rad) * Math.sin(phi1Rad), 1.5);
D = x / (N1 * k0);
var lat = phi1Rad - (N1 * Math.tan(phi1Rad) / R1) * (D * D / 2 - (5 + 3 * T1 + 10 * C1 - 4 * C1 * C1 - 9 * eccPrimeSquared) * D * D * D * D / 24 + (61 + 90 * T1 + 298 * C1 + 45 * T1 * T1 - 252 * eccPrimeSquared - 3 * C1 * C1) * D * D * D * D * D * D / 720);
lat = radToDeg(lat);
var lon = (D - (1 + 2 * T1 + C1) * D * D * D / 6 + (5 - 2 * C1 + 28 * T1 - 3 * C1 * C1 + 8 * eccPrimeSquared + 24 * T1 * T1) * D * D * D * D * D / 120) / Math.cos(phi1Rad);
lon = LongOrigin + radToDeg(lon);
var result;
if (utm.accuracy) {
var topRight = UTMtoLL({
northing: utm.northing + utm.accuracy,
easting: utm.easting + utm.accuracy,
zoneLetter: utm.zoneLetter,
zoneNumber: utm.zoneNumber
});
result = {
top: topRight.lat,
right: topRight.lon,
bottom: lat,
left: lon
};
}
else {
result = {
lat: lat,
lon: lon
};
}
return result;
}
/**
* Calculates the MGRS letter designator for the given latitude.
*
* @private
* @param {number} lat The latitude in WGS84 to get the letter designator
* for.
* @return {char} The letter designator.
*/
function getLetterDesignator(lat) {
//This is here as an error flag to show that the Latitude is
//outside MGRS limits
var LetterDesignator = 'Z';
if ((84 >= lat) && (lat >= 72)) {
LetterDesignator = 'X';
}
else if ((72 > lat) && (lat >= 64)) {
LetterDesignator = 'W';
}
else if ((64 > lat) && (lat >= 56)) {
LetterDesignator = 'V';
}
else if ((56 > lat) && (lat >= 48)) {
LetterDesignator = 'U';
}
else if ((48 > lat) && (lat >= 40)) {
LetterDesignator = 'T';
}
else if ((40 > lat) && (lat >= 32)) {
LetterDesignator = 'S';
}
else if ((32 > lat) && (lat >= 24)) {
LetterDesignator = 'R';
}
else if ((24 > lat) && (lat >= 16)) {
LetterDesignator = 'Q';
}
else if ((16 > lat) && (lat >= 8)) {
LetterDesignator = 'P';
}
else if ((8 > lat) && (lat >= 0)) {
LetterDesignator = 'N';
}
else if ((0 > lat) && (lat >= -8)) {
LetterDesignator = 'M';
}
else if ((-8 > lat) && (lat >= -16)) {
LetterDesignator = 'L';
}
else if ((-16 > lat) && (lat >= -24)) {
LetterDesignator = 'K';
}
else if ((-24 > lat) && (lat >= -32)) {
LetterDesignator = 'J';
}
else if ((-32 > lat) && (lat >= -40)) {
LetterDesignator = 'H';
}
else if ((-40 > lat) && (lat >= -48)) {
LetterDesignator = 'G';
}
else if ((-48 > lat) && (lat >= -56)) {
LetterDesignator = 'F';
}
else if ((-56 > lat) && (lat >= -64)) {
LetterDesignator = 'E';
}
else if ((-64 > lat) && (lat >= -72)) {
LetterDesignator = 'D';
}
else if ((-72 > lat) && (lat >= -80)) {
LetterDesignator = 'C';
}
return LetterDesignator;
}
/**
* Encodes a UTM location as MGRS string.
*
* @private
* @param {object} utm An object literal with easting, northing,
* zoneLetter, zoneNumber
* @param {number} accuracy Accuracy in digits (1-5).
* @return {string} MGRS string for the given UTM location.
*/
function encode(utm, accuracy) {
// prepend with leading zeroes
var seasting = "00000" + utm.easting,
snorthing = "00000" + utm.northing;
return utm.zoneNumber + utm.zoneLetter + get100kID(utm.easting, utm.northing, utm.zoneNumber) + seasting.substr(seasting.length - 5, accuracy) + snorthing.substr(snorthing.length - 5, accuracy);
}
/**
* Get the two letter 100k designator for a given UTM easting,
* northing and zone number value.
*
* @private
* @param {number} easting
* @param {number} northing
* @param {number} zoneNumber
* @return the two letter 100k designator for the given UTM location.
*/
function get100kID(easting, northing, zoneNumber) {
var setParm = get100kSetForZone(zoneNumber);
var setColumn = Math.floor(easting / 100000);
var setRow = Math.floor(northing / 100000) % 20;
return getLetter100kID(setColumn, setRow, setParm);
}
/**
* Given a UTM zone number, figure out the MGRS 100K set it is in.
*
* @private
* @param {number} i An UTM zone number.
* @return {number} the 100k set the UTM zone is in.
*/
function get100kSetForZone(i) {
var setParm = i % NUM_100K_SETS;
if (setParm === 0) {
setParm = NUM_100K_SETS;
}
return setParm;
}
/**
* Get the two-letter MGRS 100k designator given information
* translated from the UTM northing, easting and zone number.
*
* @private
* @param {number} column the column index as it relates to the MGRS
* 100k set spreadsheet, created from the UTM easting.
* Values are 1-8.
* @param {number} row the row index as it relates to the MGRS 100k set
* spreadsheet, created from the UTM northing value. Values
* are from 0-19.
* @param {number} parm the set block, as it relates to the MGRS 100k set
* spreadsheet, created from the UTM zone. Values are from
* 1-60.
* @return two letter MGRS 100k code.
*/
function getLetter100kID(column, row, parm) {
// colOrigin and rowOrigin are the letters at the origin of the set
var index = parm - 1;
var colOrigin = SET_ORIGIN_COLUMN_LETTERS.charCodeAt(index);
var rowOrigin = SET_ORIGIN_ROW_LETTERS.charCodeAt(index);
// colInt and rowInt are the letters to build to return
var colInt = colOrigin + column - 1;
var rowInt = rowOrigin + row;
var rollover = false;
if (colInt > Z) {
colInt = colInt - Z + A - 1;
rollover = true;
}
if (colInt === I || (colOrigin < I && colInt > I) || ((colInt > I || colOrigin < I) && rollover)) {
colInt++;
}
if (colInt === O || (colOrigin < O && colInt > O) || ((colInt > O || colOrigin < O) && rollover)) {
colInt++;
if (colInt === I) {
colInt++;
}
}
if (colInt > Z) {
colInt = colInt - Z + A - 1;
}
if (rowInt > V) {
rowInt = rowInt - V + A - 1;
rollover = true;
}
else {
rollover = false;
}
if (((rowInt === I) || ((rowOrigin < I) && (rowInt > I))) || (((rowInt > I) || (rowOrigin < I)) && rollover)) {
rowInt++;
}
if (((rowInt === O) || ((rowOrigin < O) && (rowInt > O))) || (((rowInt > O) || (rowOrigin < O)) && rollover)) {
rowInt++;
if (rowInt === I) {
rowInt++;
}
}
if (rowInt > V) {
rowInt = rowInt - V + A - 1;
}
var twoLetter = String.fromCharCode(colInt) + String.fromCharCode(rowInt);
return twoLetter;
}
/**
* Decode the UTM parameters from a MGRS string.
*
* @private
* @param {string} mgrsString an UPPERCASE coordinate string is expected.
* @return {object} An object literal with easting, northing, zoneLetter,
* zoneNumber and accuracy (in meters) properties.
*/
function decode(mgrsString) {
if (mgrsString && mgrsString.length === 0) {
throw ("MGRSPoint coverting from nothing");
}
var length = mgrsString.length;
var hunK = null;
var sb = "";
var testChar;
var i = 0;
// get Zone number
while (!(/[A-Z]/).test(testChar = mgrsString.charAt(i))) {
if (i >= 2) {
throw ("MGRSPoint bad conversion from: " + mgrsString);
}
sb += testChar;
i++;
}
var zoneNumber = parseInt(sb, 10);
if (i === 0 || i + 3 > length) {
// A good MGRS string has to be 4-5 digits long,
// ##AAA/#AAA at least.
throw ("MGRSPoint bad conversion from: " + mgrsString);
}
var zoneLetter = mgrsString.charAt(i++);
// Should we check the zone letter here? Why not.
if (zoneLetter <= 'A' || zoneLetter === 'B' || zoneLetter === 'Y' || zoneLetter >= 'Z' || zoneLetter === 'I' || zoneLetter === 'O') {
throw ("MGRSPoint zone letter " + zoneLetter + " not handled: " + mgrsString);
}
hunK = mgrsString.substring(i, i += 2);
var set = get100kSetForZone(zoneNumber);
var east100k = getEastingFromChar(hunK.charAt(0), set);
var north100k = getNorthingFromChar(hunK.charAt(1), set);
// We have a bug where the northing may be 2000000 too low.
// How
// do we know when to roll over?
while (north100k < getMinNorthing(zoneLetter)) {
north100k += 2000000;
}
// calculate the char index for easting/northing separator
var remainder = length - i;
if (remainder % 2 !== 0) {
throw ("MGRSPoint has to have an even number \nof digits after the zone letter and two 100km letters - front \nhalf for easting meters, second half for \nnorthing meters" + mgrsString);
}
var sep = remainder / 2;
var sepEasting = 0.0;
var sepNorthing = 0.0;
var accuracyBonus, sepEastingString, sepNorthingString, easting, northing;
if (sep > 0) {
accuracyBonus = 100000.0 / Math.pow(10, sep);
sepEastingString = mgrsString.substring(i, i + sep);
sepEasting = parseFloat(sepEastingString) * accuracyBonus;
sepNorthingString = mgrsString.substring(i + sep);
sepNorthing = parseFloat(sepNorthingString) * accuracyBonus;
}
easting = sepEasting + east100k;
northing = sepNorthing + north100k;
return {
easting: easting,
northing: northing,
zoneLetter: zoneLetter,
zoneNumber: zoneNumber,
accuracy: accuracyBonus
};
}
/**
* Given the first letter from a two-letter MGRS 100k zone, and given the
* MGRS table set for the zone number, figure out the easting value that
* should be added to the other, secondary easting value.
*
* @private
* @param {char} e The first letter from a two-letter MGRS 100´k zone.
* @param {number} set The MGRS table set for the zone number.
* @return {number} The easting value for the given letter and set.
*/
function getEastingFromChar(e, set) {
// colOrigin is the letter at the origin of the set for the
// column
var curCol = SET_ORIGIN_COLUMN_LETTERS.charCodeAt(set - 1);
var eastingValue = 100000.0;
var rewindMarker = false;
while (curCol !== e.charCodeAt(0)) {
curCol++;
if (curCol === I) {
curCol++;
}
if (curCol === O) {
curCol++;
}
if (curCol > Z) {
if (rewindMarker) {
throw ("Bad character: " + e);
}
curCol = A;
rewindMarker = true;
}
eastingValue += 100000.0;
}
return eastingValue;
}
/**
* Given the second letter from a two-letter MGRS 100k zone, and given the
* MGRS table set for the zone number, figure out the northing value that
* should be added to the other, secondary northing value. You have to
* remember that Northings are determined from the equator, and the vertical
* cycle of letters mean a 2000000 additional northing meters. This happens
* approx. every 18 degrees of latitude. This method does *NOT* count any
* additional northings. You have to figure out how many 2000000 meters need
* to be added for the zone letter of the MGRS coordinate.
*
* @private
* @param {char} n Second letter of the MGRS 100k zone
* @param {number} set The MGRS table set number, which is dependent on the
* UTM zone number.
* @return {number} The northing value for the given letter and set.
*/
function getNorthingFromChar(n, set) {
if (n > 'V') {
throw ("MGRSPoint given invalid Northing " + n);
}
// rowOrigin is the letter at the origin of the set for the
// column
var curRow = SET_ORIGIN_ROW_LETTERS.charCodeAt(set - 1);
var northingValue = 0.0;
var rewindMarker = false;
while (curRow !== n.charCodeAt(0)) {
curRow++;
if (curRow === I) {
curRow++;
}
if (curRow === O) {
curRow++;
}
// fixing a bug making whole application hang in this loop
// when 'n' is a wrong character
if (curRow > V) {
if (rewindMarker) { // making sure that this loop ends
throw ("Bad character: " + n);
}
curRow = A;
rewindMarker = true;
}
northingValue += 100000.0;
}
return northingValue;
}
/**
* The function getMinNorthing returns the minimum northing value of a MGRS
* zone.
*
* Ported from Geotrans' c Lattitude_Band_Value structure table.
*
* @private
* @param {char} zoneLetter The MGRS zone to get the min northing for.
* @return {number}
*/
function getMinNorthing(zoneLetter) {
var northing;
switch (zoneLetter) {
case 'C':
northing = 1100000.0;
break;
case 'D':
northing = 2000000.0;
break;
case 'E':
northing = 2800000.0;
break;
case 'F':
northing = 3700000.0;
break;
case 'G':
northing = 4600000.0;
break;
case 'H':
northing = 5500000.0;
break;
case 'J':
northing = 6400000.0;
break;
case 'K':
northing = 7300000.0;
break;
case 'L':
northing = 8200000.0;
break;
case 'M':
northing = 9100000.0;
break;
case 'N':
northing = 0.0;
break;
case 'P':
northing = 800000.0;
break;
case 'Q':
northing = 1700000.0;
break;
case 'R':
northing = 2600000.0;
break;
case 'S':
northing = 3500000.0;
break;
case 'T':
northing = 4400000.0;
break;
case 'U':
northing = 5300000.0;
break;
case 'V':
northing = 6200000.0;
break;
case 'W':
northing = 7000000.0;
break;
case 'X':
northing = 7900000.0;
break;
default:
northing = -1.0;
}
if (northing >= 0.0) {
return northing;
}
else {
throw ("Invalid zone letter: " + zoneLetter);
}
}
}, {}], 37: [function (require, module, exports) {
// Top level file is just a mixin of submodules & constants
'use strict';
var assign = require('./lib/utils/common').assign;
var deflate = require('./lib/deflate');
var inflate = require('./lib/inflate');
var constants = require('./lib/zlib/constants');
var pako = {};
assign(pako, deflate, inflate, constants);
module.exports = pako;
}, { "./lib/deflate": 38, "./lib/inflate": 39, "./lib/utils/common": 40, "./lib/zlib/constants": 43}], 38: [function (require, module, exports) {
'use strict';
var zlib_deflate = require('./zlib/deflate.js');
var utils = require('./utils/common');
var strings = require('./utils/strings');
var msg = require('./zlib/messages');
var zstream = require('./zlib/zstream');
var toString = Object.prototype.toString;
/* Public constants ==========================================================*/
/* ===========================================================================*/
var Z_NO_FLUSH = 0;
var Z_FINISH = 4;
var Z_OK = 0;
var Z_STREAM_END = 1;
var Z_SYNC_FLUSH = 2;
var Z_DEFAULT_COMPRESSION = -1;
var Z_DEFAULT_STRATEGY = 0;
var Z_DEFLATED = 8;
/* ===========================================================================*/
/**
* class Deflate
*
* Generic JS-style wrapper for zlib calls. If you don't need
* streaming behaviour - use more simple functions: [[deflate]],
* [[deflateRaw]] and [[gzip]].
**/
/* internal
* Deflate.chunks -> Array
*
* Chunks of output data, if [[Deflate#onData]] not overriden.
**/
/**
* Deflate.result -> Uint8Array|Array
*
* Compressed result, generated by default [[Deflate#onData]]
* and [[Deflate#onEnd]] handlers. Filled after you push last chunk
* (call [[Deflate#push]] with `Z_FINISH` / `true` param) or if you
* push a chunk with explicit flush (call [[Deflate#push]] with
* `Z_SYNC_FLUSH` param).
**/
/**
* Deflate.err -> Number
*
* Error code after deflate finished. 0 (Z_OK) on success.
* You will not need it in real life, because deflate errors
* are possible only on wrong options or bad `onData` / `onEnd`
* custom handlers.
**/
/**
* Deflate.msg -> String
*
* Error message, if [[Deflate.err]] != 0
**/
/**
* new Deflate(options)
* - options (Object): zlib deflate options.
*
* Creates new deflator instance with specified params. Throws exception
* on bad params. Supported options:
*
* - `level`
* - `windowBits`
* - `memLevel`
* - `strategy`
*
* [http://zlib.net/manual.html#Advanced](http://zlib.net/manual.html#Advanced)
* for more information on these.
*
* Additional options, for internal needs:
*
* - `chunkSize` - size of generated data chunks (16K by default)
* - `raw` (Boolean) - do raw deflate
* - `gzip` (Boolean) - create gzip wrapper
* - `to` (String) - if equal to 'string', then result will be "binary string"
* (each char code [0..255])
* - `header` (Object) - custom header for gzip
* - `text` (Boolean) - true if compressed data believed to be text
* - `time` (Number) - modification time, unix timestamp
* - `os` (Number) - operation system code
* - `extra` (Array) - array of bytes with extra data (max 65536)
* - `name` (String) - file name (binary string)
* - `comment` (String) - comment (binary string)
* - `hcrc` (Boolean) - true if header crc should be added
*
* ##### Example:
*
* ```javascript
* var pako = require('pako')
* , chunk1 = Uint8Array([1,2,3,4,5,6,7,8,9])
* , chunk2 = Uint8Array([10,11,12,13,14,15,16,17,18,19]);
*
* var deflate = new pako.Deflate({ level: 3});
*
* deflate.push(chunk1, false);
* deflate.push(chunk2, true); // true -> last chunk
*
* if (deflate.err) { throw new Error(deflate.err); }
*
* console.log(deflate.result);
* ```
**/
var Deflate = function (options) {
this.options = utils.assign({
level: Z_DEFAULT_COMPRESSION,
method: Z_DEFLATED,
chunkSize: 16384,
windowBits: 15,
memLevel: 8,
strategy: Z_DEFAULT_STRATEGY,
to: ''
}, options || {});
var opt = this.options;
if (opt.raw && (opt.windowBits > 0)) {
opt.windowBits = -opt.windowBits;
}
else if (opt.gzip && (opt.windowBits > 0) && (opt.windowBits < 16)) {
opt.windowBits += 16;
}
this.err = 0; // error code, if happens (0 = Z_OK)
this.msg = ''; // error message
this.ended = false; // used to avoid multiple onEnd() calls
this.chunks = []; // chunks of compressed data
this.strm = new zstream();
this.strm.avail_out = 0;
var status = zlib_deflate.deflateInit2(
this.strm,
opt.level,
opt.method,
opt.windowBits,
opt.memLevel,
opt.strategy
);
if (status !== Z_OK) {
throw new Error(msg[status]);
}
if (opt.header) {
zlib_deflate.deflateSetHeader(this.strm, opt.header);
}
};
/**
* Deflate#push(data[, mode]) -> Boolean
* - data (Uint8Array|Array|ArrayBuffer|String): input data. Strings will be
* converted to utf8 byte sequence.
* - mode (Number|Boolean): 0..6 for corresponding Z_NO_FLUSH..Z_TREE modes.
* See constants. Skipped or `false` means Z_NO_FLUSH, `true` meansh Z_FINISH.
*
* Sends input data to deflate pipe, generating [[Deflate#onData]] calls with
* new compressed chunks. Returns `true` on success. The last data block must have
* mode Z_FINISH (or `true`). That will flush internal pending buffers and call
* [[Deflate#onEnd]]. For interim explicit flushes (without ending the stream) you
* can use mode Z_SYNC_FLUSH, keeping the compression context.
*
* On fail call [[Deflate#onEnd]] with error code and return false.
*
* We strongly recommend to use `Uint8Array` on input for best speed (output
* array format is detected automatically). Also, don't skip last param and always
* use the same type in your code (boolean or number). That will improve JS speed.
*
* For regular `Array`-s make sure all elements are [0..255].
*
* ##### Example
*
* ```javascript
* push(chunk, false); // push one of data chunks
* ...
* push(chunk, true); // push last chunk
* ```
**/
Deflate.prototype.push = function (data, mode) {
var strm = this.strm;
var chunkSize = this.options.chunkSize;
var status, _mode;
if (this.ended) { return false; }
_mode = (mode === ~ ~mode) ? mode : ((mode === true) ? Z_FINISH : Z_NO_FLUSH);
// Convert data if needed
if (typeof data === 'string') {
// If we need to compress text, change encoding to utf8.
strm.input = strings.string2buf(data);
} else if (toString.call(data) === '[object ArrayBuffer]') {
strm.input = new Uint8Array(data);
} else {
strm.input = data;
}
strm.next_in = 0;
strm.avail_in = strm.input.length;
do {
if (strm.avail_out === 0) {
strm.output = new utils.Buf8(chunkSize);
strm.next_out = 0;
strm.avail_out = chunkSize;
}
status = zlib_deflate.deflate(strm, _mode); /* no bad return value */
if (status !== Z_STREAM_END && status !== Z_OK) {
this.onEnd(status);
this.ended = true;
return false;
}
if (strm.avail_out === 0 || (strm.avail_in === 0 && (_mode === Z_FINISH || _mode === Z_SYNC_FLUSH))) {
if (this.options.to === 'string') {
this.onData(strings.buf2binstring(utils.shrinkBuf(strm.output, strm.next_out)));
} else {
this.onData(utils.shrinkBuf(strm.output, strm.next_out));
}
}
} while ((strm.avail_in > 0 || strm.avail_out === 0) && status !== Z_STREAM_END);
// Finalize on the last chunk.
if (_mode === Z_FINISH) {
status = zlib_deflate.deflateEnd(this.strm);
this.onEnd(status);
this.ended = true;
return status === Z_OK;
}
// callback interim results if Z_SYNC_FLUSH.
if (_mode === Z_SYNC_FLUSH) {
this.onEnd(Z_OK);
strm.avail_out = 0;
return true;
}
return true;
};
/**
* Deflate#onData(chunk) -> Void
* - chunk (Uint8Array|Array|String): ouput data. Type of array depends
* on js engine support. When string output requested, each chunk
* will be string.
*
* By default, stores data blocks in `chunks[]` property and glue
* those in `onEnd`. Override this handler, if you need another behaviour.
**/
Deflate.prototype.onData = function (chunk) {
this.chunks.push(chunk);
};
/**
* Deflate#onEnd(status) -> Void
* - status (Number): deflate status. 0 (Z_OK) on success,
* other if not.
*
* Called once after you tell deflate that the input stream is
* complete (Z_FINISH) or should be flushed (Z_SYNC_FLUSH)
* or if an error happened. By default - join collected chunks,
* free memory and fill `results` / `err` properties.
**/
Deflate.prototype.onEnd = function (status) {
// On success - join
if (status === Z_OK) {
if (this.options.to === 'string') {
this.result = this.chunks.join('');
} else {
this.result = utils.flattenChunks(this.chunks);
}
}
this.chunks = [];
this.err = status;
this.msg = this.strm.msg;
};
/**
* deflate(data[, options]) -> Uint8Array|Array|String
* - data (Uint8Array|Array|String): input data to compress.
* - options (Object): zlib deflate options.
*
* Compress `data` with deflate alrorythm and `options`.
*
* Supported options are:
*
* - level
* - windowBits
* - memLevel
* - strategy
*
* [http://zlib.net/manual.html#Advanced](http://zlib.net/manual.html#Advanced)
* for more information on these.
*
* Sugar (options):
*
* - `raw` (Boolean) - say that we work with raw stream, if you don't wish to specify
* negative windowBits implicitly.
* - `to` (String) - if equal to 'string', then result will be "binary string"
* (each char code [0..255])
*
* ##### Example:
*
* ```javascript
* var pako = require('pako')
* , data = Uint8Array([1,2,3,4,5,6,7,8,9]);
*
* console.log(pako.deflate(data));
* ```
**/
function deflate(input, options) {
var deflator = new Deflate(options);
deflator.push(input, true);
// That will never happens, if you don't cheat with options :)
if (deflator.err) { throw deflator.msg; }
return deflator.result;
}
/**
* deflateRaw(data[, options]) -> Uint8Array|Array|String
* - data (Uint8Array|Array|String): input data to compress.
* - options (Object): zlib deflate options.
*
* The same as [[deflate]], but creates raw data, without wrapper
* (header and adler32 crc).
**/
function deflateRaw(input, options) {
options = options || {};
options.raw = true;
return deflate(input, options);
}
/**
* gzip(data[, options]) -> Uint8Array|Array|String
* - data (Uint8Array|Array|String): input data to compress.
* - options (Object): zlib deflate options.
*
* The same as [[deflate]], but create gzip wrapper instead of
* deflate one.
**/
function gzip(input, options) {
options = options || {};
options.gzip = true;
return deflate(input, options);
}
exports.Deflate = Deflate;
exports.deflate = deflate;
exports.deflateRaw = deflateRaw;
exports.gzip = gzip;
}, { "./utils/common": 40, "./utils/strings": 41, "./zlib/deflate.js": 45, "./zlib/messages": 50, "./zlib/zstream": 52}], 39: [function (require, module, exports) {
'use strict';
var zlib_inflate = require('./zlib/inflate.js');
var utils = require('./utils/common');
var strings = require('./utils/strings');
var c = require('./zlib/constants');
var msg = require('./zlib/messages');
var zstream = require('./zlib/zstream');
var gzheader = require('./zlib/gzheader');
var toString = Object.prototype.toString;
/**
* class Inflate
*
* Generic JS-style wrapper for zlib calls. If you don't need
* streaming behaviour - use more simple functions: [[inflate]]
* and [[inflateRaw]].
**/
/* internal
* inflate.chunks -> Array
*
* Chunks of output data, if [[Inflate#onData]] not overriden.
**/
/**
* Inflate.result -> Uint8Array|Array|String
*
* Uncompressed result, generated by default [[Inflate#onData]]
* and [[Inflate#onEnd]] handlers. Filled after you push last chunk
* (call [[Inflate#push]] with `Z_FINISH` / `true` param) or if you
* push a chunk with explicit flush (call [[Inflate#push]] with
* `Z_SYNC_FLUSH` param).
**/
/**
* Inflate.err -> Number
*
* Error code after inflate finished. 0 (Z_OK) on success.
* Should be checked if broken data possible.
**/
/**
* Inflate.msg -> String
*
* Error message, if [[Inflate.err]] != 0
**/
/**
* new Inflate(options)
* - options (Object): zlib inflate options.
*
* Creates new inflator instance with specified params. Throws exception
* on bad params. Supported options:
*
* - `windowBits`
*
* [http://zlib.net/manual.html#Advanced](http://zlib.net/manual.html#Advanced)
* for more information on these.
*
* Additional options, for internal needs:
*
* - `chunkSize` - size of generated data chunks (16K by default)
* - `raw` (Boolean) - do raw inflate
* - `to` (String) - if equal to 'string', then result will be converted
* from utf8 to utf16 (javascript) string. When string output requested,
* chunk length can differ from `chunkSize`, depending on content.
*
* By default, when no options set, autodetect deflate/gzip data format via
* wrapper header.
*
* ##### Example:
*
* ```javascript
* var pako = require('pako')
* , chunk1 = Uint8Array([1,2,3,4,5,6,7,8,9])
* , chunk2 = Uint8Array([10,11,12,13,14,15,16,17,18,19]);
*
* var inflate = new pako.Inflate({ level: 3});
*
* inflate.push(chunk1, false);
* inflate.push(chunk2, true); // true -> last chunk
*
* if (inflate.err) { throw new Error(inflate.err); }
*
* console.log(inflate.result);
* ```
**/
var Inflate = function (options) {
this.options = utils.assign({
chunkSize: 16384,
windowBits: 0,
to: ''
}, options || {});
var opt = this.options;
// Force window size for `raw` data, if not set directly,
// because we have no header for autodetect.
if (opt.raw && (opt.windowBits >= 0) && (opt.windowBits < 16)) {
opt.windowBits = -opt.windowBits;
if (opt.windowBits === 0) { opt.windowBits = -15; }
}
// If `windowBits` not defined (and mode not raw) - set autodetect flag for gzip/deflate
if ((opt.windowBits >= 0) && (opt.windowBits < 16) &&
!(options && options.windowBits)) {
opt.windowBits += 32;
}
// Gzip header has no info about windows size, we can do autodetect only
// for deflate. So, if window size not set, force it to max when gzip possible
if ((opt.windowBits > 15) && (opt.windowBits < 48)) {
// bit 3 (16) -> gzipped data
// bit 4 (32) -> autodetect gzip/deflate
if ((opt.windowBits & 15) === 0) {
opt.windowBits |= 15;
}
}
this.err = 0; // error code, if happens (0 = Z_OK)
this.msg = ''; // error message
this.ended = false; // used to avoid multiple onEnd() calls
this.chunks = []; // chunks of compressed data
this.strm = new zstream();
this.strm.avail_out = 0;
var status = zlib_inflate.inflateInit2(
this.strm,
opt.windowBits
);
if (status !== c.Z_OK) {
throw new Error(msg[status]);
}
this.header = new gzheader();
zlib_inflate.inflateGetHeader(this.strm, this.header);
};
/**
* Inflate#push(data[, mode]) -> Boolean
* - data (Uint8Array|Array|ArrayBuffer|String): input data
* - mode (Number|Boolean): 0..6 for corresponding Z_NO_FLUSH..Z_TREE modes.
* See constants. Skipped or `false` means Z_NO_FLUSH, `true` meansh Z_FINISH.
*
* Sends input data to inflate pipe, generating [[Inflate#onData]] calls with
* new output chunks. Returns `true` on success. The last data block must have
* mode Z_FINISH (or `true`). That will flush internal pending buffers and call
* [[Inflate#onEnd]]. For interim explicit flushes (without ending the stream) you
* can use mode Z_SYNC_FLUSH, keeping the decompression context.
*
* On fail call [[Inflate#onEnd]] with error code and return false.
*
* We strongly recommend to use `Uint8Array` on input for best speed (output
* format is detected automatically). Also, don't skip last param and always
* use the same type in your code (boolean or number). That will improve JS speed.
*
* For regular `Array`-s make sure all elements are [0..255].
*
* ##### Example
*
* ```javascript
* push(chunk, false); // push one of data chunks
* ...
* push(chunk, true); // push last chunk
* ```
**/
Inflate.prototype.push = function (data, mode) {
var strm = this.strm;
var chunkSize = this.options.chunkSize;
var status, _mode;
var next_out_utf8, tail, utf8str;
// Flag to properly process Z_BUF_ERROR on testing inflate call
// when we check that all output data was flushed.
var allowBufError = false;
if (this.ended) { return false; }
_mode = (mode === ~ ~mode) ? mode : ((mode === true) ? c.Z_FINISH : c.Z_NO_FLUSH);
// Convert data if needed
if (typeof data === 'string') {
// Only binary strings can be decompressed on practice
strm.input = strings.binstring2buf(data);
} else if (toString.call(data) === '[object ArrayBuffer]') {
strm.input = new Uint8Array(data);
} else {
strm.input = data;
}
strm.next_in = 0;
strm.avail_in = strm.input.length;
do {
if (strm.avail_out === 0) {
strm.output = new utils.Buf8(chunkSize);
strm.next_out = 0;
strm.avail_out = chunkSize;
}
status = zlib_inflate.inflate(strm, c.Z_NO_FLUSH); /* no bad return value */
if (status === c.Z_BUF_ERROR && allowBufError === true) {
status = c.Z_OK;
allowBufError = false;
}
if (status !== c.Z_STREAM_END && status !== c.Z_OK) {
this.onEnd(status);
this.ended = true;
return false;
}
if (strm.next_out) {
if (strm.avail_out === 0 || status === c.Z_STREAM_END || (strm.avail_in === 0 && (_mode === c.Z_FINISH || _mode === c.Z_SYNC_FLUSH))) {
if (this.options.to === 'string') {
next_out_utf8 = strings.utf8border(strm.output, strm.next_out);
tail = strm.next_out - next_out_utf8;
utf8str = strings.buf2string(strm.output, next_out_utf8);
// move tail
strm.next_out = tail;
strm.avail_out = chunkSize - tail;
if (tail) { utils.arraySet(strm.output, strm.output, next_out_utf8, tail, 0); }
this.onData(utf8str);
} else {
this.onData(utils.shrinkBuf(strm.output, strm.next_out));
}
}
}
// When no more input data, we should check that internal inflate buffers
// are flushed. The only way to do it when avail_out = 0 - run one more
// inflate pass. But if output data not exists, inflate return Z_BUF_ERROR.
// Here we set flag to process this error properly.
//
// NOTE. Deflate does not return error in this case and does not needs such
// logic.
if (strm.avail_in === 0 && strm.avail_out === 0) {
allowBufError = true;
}
} while ((strm.avail_in > 0 || strm.avail_out === 0) && status !== c.Z_STREAM_END);
if (status === c.Z_STREAM_END) {
_mode = c.Z_FINISH;
}
// Finalize on the last chunk.
if (_mode === c.Z_FINISH) {
status = zlib_inflate.inflateEnd(this.strm);
this.onEnd(status);
this.ended = true;
return status === c.Z_OK;
}
// callback interim results if Z_SYNC_FLUSH.
if (_mode === c.Z_SYNC_FLUSH) {
this.onEnd(c.Z_OK);
strm.avail_out = 0;
return true;
}
return true;
};
/**
* Inflate#onData(chunk) -> Void
* - chunk (Uint8Array|Array|String): ouput data. Type of array depends
* on js engine support. When string output requested, each chunk
* will be string.
*
* By default, stores data blocks in `chunks[]` property and glue
* those in `onEnd`. Override this handler, if you need another behaviour.
**/
Inflate.prototype.onData = function (chunk) {
this.chunks.push(chunk);
};
/**
* Inflate#onEnd(status) -> Void
* - status (Number): inflate status. 0 (Z_OK) on success,
* other if not.
*
* Called either after you tell inflate that the input stream is
* complete (Z_FINISH) or should be flushed (Z_SYNC_FLUSH)
* or if an error happened. By default - join collected chunks,
* free memory and fill `results` / `err` properties.
**/
Inflate.prototype.onEnd = function (status) {
// On success - join
if (status === c.Z_OK) {
if (this.options.to === 'string') {
// Glue & convert here, until we teach pako to send
// utf8 alligned strings to onData
this.result = this.chunks.join('');
} else {
this.result = utils.flattenChunks(this.chunks);
}
}
this.chunks = [];
this.err = status;
this.msg = this.strm.msg;
};
/**
* inflate(data[, options]) -> Uint8Array|Array|String
* - data (Uint8Array|Array|String): input data to decompress.
* - options (Object): zlib inflate options.
*
* Decompress `data` with inflate/ungzip and `options`. Autodetect
* format via wrapper header by default. That's why we don't provide
* separate `ungzip` method.
*
* Supported options are:
*
* - windowBits
*
* [http://zlib.net/manual.html#Advanced](http://zlib.net/manual.html#Advanced)
* for more information.
*
* Sugar (options):
*
* - `raw` (Boolean) - say that we work with raw stream, if you don't wish to specify
* negative windowBits implicitly.
* - `to` (String) - if equal to 'string', then result will be converted
* from utf8 to utf16 (javascript) string. When string output requested,
* chunk length can differ from `chunkSize`, depending on content.
*
*
* ##### Example:
*
* ```javascript
* var pako = require('pako')
* , input = pako.deflate([1,2,3,4,5,6,7,8,9])
* , output;
*
* try {
* output = pako.inflate(input);
* } catch (err)
* console.log(err);
* }
* ```
**/
function inflate(input, options) {
var inflator = new Inflate(options);
inflator.push(input, true);
// That will never happens, if you don't cheat with options :)
if (inflator.err) { throw inflator.msg; }
return inflator.result;
}
/**
* inflateRaw(data[, options]) -> Uint8Array|Array|String
* - data (Uint8Array|Array|String): input data to decompress.
* - options (Object): zlib inflate options.
*
* The same as [[inflate]], but creates raw data, without wrapper
* (header and adler32 crc).
**/
function inflateRaw(input, options) {
options = options || {};
options.raw = true;
return inflate(input, options);
}
/**
* ungzip(data[, options]) -> Uint8Array|Array|String
* - data (Uint8Array|Array|String): input data to decompress.
* - options (Object): zlib inflate options.
*
* Just shortcut to [[inflate]], because it autodetects format
* by header.content. Done for convenience.
**/
exports.Inflate = Inflate;
exports.inflate = inflate;
exports.inflateRaw = inflateRaw;
exports.ungzip = inflate;
}, { "./utils/common": 40, "./utils/strings": 41, "./zlib/constants": 43, "./zlib/gzheader": 46, "./zlib/inflate.js": 48, "./zlib/messages": 50, "./zlib/zstream": 52}], 40: [function (require, module, exports) {
'use strict';
var TYPED_OK = (typeof Uint8Array !== 'undefined') &&
(typeof Uint16Array !== 'undefined') &&
(typeof Int32Array !== 'undefined');
exports.assign = function (obj /*from1, from2, from3, ...*/) {
var sources = Array.prototype.slice.call(arguments, 1);
while (sources.length) {
var source = sources.shift();
if (!source) { continue; }
if (typeof source !== 'object') {
throw new TypeError(source + 'must be non-object');
}
for (var p in source) {
if (source.hasOwnProperty(p)) {
obj[p] = source[p];
}
}
}
return obj;
};
// reduce buffer size, avoiding mem copy
exports.shrinkBuf = function (buf, size) {
if (buf.length === size) { return buf; }
if (buf.subarray) { return buf.subarray(0, size); }
buf.length = size;
return buf;
};
var fnTyped = {
arraySet: function (dest, src, src_offs, len, dest_offs) {
if (src.subarray && dest.subarray) {
dest.set(src.subarray(src_offs, src_offs + len), dest_offs);
return;
}
// Fallback to ordinary array
for (var i = 0; i < len; i++) {
dest[dest_offs + i] = src[src_offs + i];
}
},
// Join array of chunks to single array.
flattenChunks: function (chunks) {
var i, l, len, pos, chunk, result;
// calculate data length
len = 0;
for (i = 0, l = chunks.length; i < l; i++) {
len += chunks[i].length;
}
// join chunks
result = new Uint8Array(len);
pos = 0;
for (i = 0, l = chunks.length; i < l; i++) {
chunk = chunks[i];
result.set(chunk, pos);
pos += chunk.length;
}
return result;
}
};
var fnUntyped = {
arraySet: function (dest, src, src_offs, len, dest_offs) {
for (var i = 0; i < len; i++) {
dest[dest_offs + i] = src[src_offs + i];
}
},
// Join array of chunks to single array.
flattenChunks: function (chunks) {
return [].concat.apply([], chunks);
}
};
// Enable/Disable typed arrays use, for testing
//
exports.setTyped = function (on) {
if (on) {
exports.Buf8 = Uint8Array;
exports.Buf16 = Uint16Array;
exports.Buf32 = Int32Array;
exports.assign(exports, fnTyped);
} else {
exports.Buf8 = Array;
exports.Buf16 = Array;
exports.Buf32 = Array;
exports.assign(exports, fnUntyped);
}
};
exports.setTyped(TYPED_OK);
}, {}], 41: [function (require, module, exports) {
// String encode/decode helpers
'use strict';
var utils = require('./common');
// Quick check if we can use fast array to bin string conversion
//
// - apply(Array) can fail on Android 2.2
// - apply(Uint8Array) can fail on iOS 5.1 Safary
//
var STR_APPLY_OK = true;
var STR_APPLY_UIA_OK = true;
try { String.fromCharCode.apply(null, [0]); } catch (__) { STR_APPLY_OK = false; }
try { String.fromCharCode.apply(null, new Uint8Array(1)); } catch (__) { STR_APPLY_UIA_OK = false; }
// Table with utf8 lengths (calculated by first byte of sequence)
// Note, that 5 & 6-byte values and some 4-byte values can not be represented in JS,
// because max possible codepoint is 0x10ffff
var _utf8len = new utils.Buf8(256);
for (var q = 0; q < 256; q++) {
_utf8len[q] = (q >= 252 ? 6 : q >= 248 ? 5 : q >= 240 ? 4 : q >= 224 ? 3 : q >= 192 ? 2 : 1);
}
_utf8len[254] = _utf8len[254] = 1; // Invalid sequence start
// convert string to array (typed, when possible)
exports.string2buf = function (str) {
var buf, c, c2, m_pos, i, str_len = str.length, buf_len = 0;
// count binary size
for (m_pos = 0; m_pos < str_len; m_pos++) {
c = str.charCodeAt(m_pos);
if ((c & 0xfc00) === 0xd800 && (m_pos + 1 < str_len)) {
c2 = str.charCodeAt(m_pos + 1);
if ((c2 & 0xfc00) === 0xdc00) {
c = 0x10000 + ((c - 0xd800) << 10) + (c2 - 0xdc00);
m_pos++;
}
}
buf_len += c < 0x80 ? 1 : c < 0x800 ? 2 : c < 0x10000 ? 3 : 4;
}
// allocate buffer
buf = new utils.Buf8(buf_len);
// convert
for (i = 0, m_pos = 0; i < buf_len; m_pos++) {
c = str.charCodeAt(m_pos);
if ((c & 0xfc00) === 0xd800 && (m_pos + 1 < str_len)) {
c2 = str.charCodeAt(m_pos + 1);
if ((c2 & 0xfc00) === 0xdc00) {
c = 0x10000 + ((c - 0xd800) << 10) + (c2 - 0xdc00);
m_pos++;
}
}
if (c < 0x80) {
/* one byte */
buf[i++] = c;
} else if (c < 0x800) {
/* two bytes */
buf[i++] = 0xC0 | (c >>> 6);
buf[i++] = 0x80 | (c & 0x3f);
} else if (c < 0x10000) {
/* three bytes */
buf[i++] = 0xE0 | (c >>> 12);
buf[i++] = 0x80 | (c >>> 6 & 0x3f);
buf[i++] = 0x80 | (c & 0x3f);
} else {
/* four bytes */
buf[i++] = 0xf0 | (c >>> 18);
buf[i++] = 0x80 | (c >>> 12 & 0x3f);
buf[i++] = 0x80 | (c >>> 6 & 0x3f);
buf[i++] = 0x80 | (c & 0x3f);
}
}
return buf;
};
// Helper (used in 2 places)
function buf2binstring(buf, len) {
// use fallback for big arrays to avoid stack overflow
if (len < 65537) {
if ((buf.subarray && STR_APPLY_UIA_OK) || (!buf.subarray && STR_APPLY_OK)) {
return String.fromCharCode.apply(null, utils.shrinkBuf(buf, len));
}
}
var result = '';
for (var i = 0; i < len; i++) {
result += String.fromCharCode(buf[i]);
}
return result;
}
// Convert byte array to binary string
exports.buf2binstring = function (buf) {
return buf2binstring(buf, buf.length);
};
// Convert binary string (typed, when possible)
exports.binstring2buf = function (str) {
var buf = new utils.Buf8(str.length);
for (var i = 0, len = buf.length; i < len; i++) {
buf[i] = str.charCodeAt(i);
}
return buf;
};
// convert array to string
exports.buf2string = function (buf, max) {
var i, out, c, c_len;
var len = max || buf.length;
// Reserve max possible length (2 words per char)
// NB: by unknown reasons, Array is significantly faster for
// String.fromCharCode.apply than Uint16Array.
var utf16buf = new Array(len * 2);
for (out = 0, i = 0; i < len; ) {
c = buf[i++];
// quick process ascii
if (c < 0x80) { utf16buf[out++] = c; continue; }
c_len = _utf8len[c];
// skip 5 & 6 byte codes
if (c_len > 4) { utf16buf[out++] = 0xfffd; i += c_len - 1; continue; }
// apply mask on first byte
c &= c_len === 2 ? 0x1f : c_len === 3 ? 0x0f : 0x07;
// join the rest
while (c_len > 1 && i < len) {
c = (c << 6) | (buf[i++] & 0x3f);
c_len--;
}
// terminated by end of string?
if (c_len > 1) { utf16buf[out++] = 0xfffd; continue; }
if (c < 0x10000) {
utf16buf[out++] = c;
} else {
c -= 0x10000;
utf16buf[out++] = 0xd800 | ((c >> 10) & 0x3ff);
utf16buf[out++] = 0xdc00 | (c & 0x3ff);
}
}
return buf2binstring(utf16buf, out);
};
// Calculate max possible position in utf8 buffer,
// that will not break sequence. If that's not possible
// - (very small limits) return max size as is.
//
// buf[] - utf8 bytes array
// max - length limit (mandatory);
exports.utf8border = function (buf, max) {
var pos;
max = max || buf.length;
if (max > buf.length) { max = buf.length; }
// go back from last position, until start of sequence found
pos = max - 1;
while (pos >= 0 && (buf[pos] & 0xC0) === 0x80) { pos--; }
// Fuckup - very small and broken sequence,
// return max, because we should return something anyway.
if (pos < 0) { return max; }
// If we came to start of buffer - that means vuffer is too small,
// return max too.
if (pos === 0) { return max; }
return (pos + _utf8len[buf[pos]] > max) ? pos : max;
};
}, { "./common": 40}], 42: [function (require, module, exports) {
'use strict';
// Note: adler32 takes 12% for level 0 and 2% for level 6.
// It doesn't worth to make additional optimizationa as in original.
// Small size is preferable.
function adler32(adler, buf, len, pos) {
var s1 = (adler & 0xffff) | 0,
s2 = ((adler >>> 16) & 0xffff) | 0,
n = 0;
while (len !== 0) {
// Set limit ~ twice less than 5552, to keep
// s2 in 31-bits, because we force signed ints.
// in other case %= will fail.
n = len > 2000 ? 2000 : len;
len -= n;
do {
s1 = (s1 + buf[pos++]) | 0;
s2 = (s2 + s1) | 0;
} while (--n);
s1 %= 65521;
s2 %= 65521;
}
return (s1 | (s2 << 16)) | 0;
}
module.exports = adler32;
}, {}], 43: [function (require, module, exports) {
module.exports = {
/* Allowed flush values; see deflate() and inflate() below for details */
Z_NO_FLUSH: 0,
Z_PARTIAL_FLUSH: 1,
Z_SYNC_FLUSH: 2,
Z_FULL_FLUSH: 3,
Z_FINISH: 4,
Z_BLOCK: 5,
Z_TREES: 6,
/* Return codes for the compression/decompression functions. Negative values
* are errors, positive values are used for special but normal events.
*/
Z_OK: 0,
Z_STREAM_END: 1,
Z_NEED_DICT: 2,
Z_ERRNO: -1,
Z_STREAM_ERROR: -2,
Z_DATA_ERROR: -3,
//Z_MEM_ERROR: -4,
Z_BUF_ERROR: -5,
//Z_VERSION_ERROR: -6,
/* compression levels */
Z_NO_COMPRESSION: 0,
Z_BEST_SPEED: 1,
Z_BEST_COMPRESSION: 9,
Z_DEFAULT_COMPRESSION: -1,
Z_FILTERED: 1,
Z_HUFFMAN_ONLY: 2,
Z_RLE: 3,
Z_FIXED: 4,
Z_DEFAULT_STRATEGY: 0,
/* Possible values of the data_type field (though see inflate()) */
Z_BINARY: 0,
Z_TEXT: 1,
//Z_ASCII: 1, // = Z_TEXT (deprecated)
Z_UNKNOWN: 2,
/* The deflate compression method */
Z_DEFLATED: 8
//Z_NULL: null // Use -1 or null inline, depending on var type
};
}, {}], 44: [function (require, module, exports) {
'use strict';
// Note: we can't get significant speed boost here.
// So write code to minimize size - no pregenerated tables
// and array tools dependencies.
// Use ordinary array, since untyped makes no boost here
function makeTable() {
var c, table = [];
for (var n = 0; n < 256; n++) {
c = n;
for (var k = 0; k < 8; k++) {
c = ((c & 1) ? (0xEDB88320 ^ (c >>> 1)) : (c >>> 1));
}
table[n] = c;
}
return table;
}
// Create table on load. Just 255 signed longs. Not a problem.
var crcTable = makeTable();
function crc32(crc, buf, len, pos) {
var t = crcTable,
end = pos + len;
crc = crc ^ (-1);
for (var i = pos; i < end; i++) {
crc = (crc >>> 8) ^ t[(crc ^ buf[i]) & 0xFF];
}
return (crc ^ (-1)); // >>> 0;
}
module.exports = crc32;
}, {}], 45: [function (require, module, exports) {
'use strict';
var utils = require('../utils/common');
var trees = require('./trees');
var adler32 = require('./adler32');
var crc32 = require('./crc32');
var msg = require('./messages');
/* Public constants ==========================================================*/
/* ===========================================================================*/
/* Allowed flush values; see deflate() and inflate() below for details */
var Z_NO_FLUSH = 0;
var Z_PARTIAL_FLUSH = 1;
//var Z_SYNC_FLUSH = 2;
var Z_FULL_FLUSH = 3;
var Z_FINISH = 4;
var Z_BLOCK = 5;
//var Z_TREES = 6;
/* Return codes for the compression/decompression functions. Negative values
* are errors, positive values are used for special but normal events.
*/
var Z_OK = 0;
var Z_STREAM_END = 1;
//var Z_NEED_DICT = 2;
//var Z_ERRNO = -1;
var Z_STREAM_ERROR = -2;
var Z_DATA_ERROR = -3;
//var Z_MEM_ERROR = -4;
var Z_BUF_ERROR = -5;
//var Z_VERSION_ERROR = -6;
/* compression levels */
//var Z_NO_COMPRESSION = 0;
//var Z_BEST_SPEED = 1;
//var Z_BEST_COMPRESSION = 9;
var Z_DEFAULT_COMPRESSION = -1;
var Z_FILTERED = 1;
var Z_HUFFMAN_ONLY = 2;
var Z_RLE = 3;
var Z_FIXED = 4;
var Z_DEFAULT_STRATEGY = 0;
/* Possible values of the data_type field (though see inflate()) */
//var Z_BINARY = 0;
//var Z_TEXT = 1;
//var Z_ASCII = 1; // = Z_TEXT
var Z_UNKNOWN = 2;
/* The deflate compression method */
var Z_DEFLATED = 8;
/*============================================================================*/
var MAX_MEM_LEVEL = 9;
/* Maximum value for memLevel in deflateInit2 */
var MAX_WBITS = 15;
/* 32K LZ77 window */
var DEF_MEM_LEVEL = 8;
var LENGTH_CODES = 29;
/* number of length codes, not counting the special END_BLOCK code */
var LITERALS = 256;
/* number of literal bytes 0..255 */
var L_CODES = LITERALS + 1 + LENGTH_CODES;
/* number of Literal or Length codes, including the END_BLOCK code */
var D_CODES = 30;
/* number of distance codes */
var BL_CODES = 19;
/* number of codes used to transfer the bit lengths */
var HEAP_SIZE = 2 * L_CODES + 1;
/* maximum heap size */
var MAX_BITS = 15;
/* All codes must not exceed MAX_BITS bits */
var MIN_MATCH = 3;
var MAX_MATCH = 258;
var MIN_LOOKAHEAD = (MAX_MATCH + MIN_MATCH + 1);
var PRESET_DICT = 0x20;
var INIT_STATE = 42;
var EXTRA_STATE = 69;
var NAME_STATE = 73;
var COMMENT_STATE = 91;
var HCRC_STATE = 103;
var BUSY_STATE = 113;
var FINISH_STATE = 666;
var BS_NEED_MORE = 1; /* block not completed, need more input or more output */
var BS_BLOCK_DONE = 2; /* block flush performed */
var BS_FINISH_STARTED = 3; /* finish started, need only more output at next deflate */
var BS_FINISH_DONE = 4; /* finish done, accept no more input or output */
var OS_CODE = 0x03; // Unix :) . Don't detect, use this default.
function err(strm, errorCode) {
strm.msg = msg[errorCode];
return errorCode;
}
function rank(f) {
return ((f) << 1) - ((f) > 4 ? 9 : 0);
}
function zero(buf) { var len = buf.length; while (--len >= 0) { buf[len] = 0; } }
/* =========================================================================
* Flush as much pending output as possible. All deflate() output goes
* through this function so some applications may wish to modify it
* to avoid allocating a large strm->output buffer and copying into it.
* (See also read_buf()).
*/
function flush_pending(strm) {
var s = strm.state;
//_tr_flush_bits(s);
var len = s.pending;
if (len > strm.avail_out) {
len = strm.avail_out;
}
if (len === 0) { return; }
utils.arraySet(strm.output, s.pending_buf, s.pending_out, len, strm.next_out);
strm.next_out += len;
s.pending_out += len;
strm.total_out += len;
strm.avail_out -= len;
s.pending -= len;
if (s.pending === 0) {
s.pending_out = 0;
}
}
function flush_block_only(s, last) {
trees._tr_flush_block(s, (s.block_start >= 0 ? s.block_start : -1), s.strstart - s.block_start, last);
s.block_start = s.strstart;
flush_pending(s.strm);
}
function put_byte(s, b) {
s.pending_buf[s.pending++] = b;
}
/* =========================================================================
* Put a short in the pending buffer. The 16-bit value is put in MSB order.
* IN assertion: the stream state is correct and there is enough room in
* pending_buf.
*/
function putShortMSB(s, b) {
// put_byte(s, (Byte)(b >> 8));
// put_byte(s, (Byte)(b & 0xff));
s.pending_buf[s.pending++] = (b >>> 8) & 0xff;
s.pending_buf[s.pending++] = b & 0xff;
}
/* ===========================================================================
* Read a new buffer from the current input stream, update the adler32
* and total number of bytes read. All deflate() input goes through
* this function so some applications may wish to modify it to avoid
* allocating a large strm->input buffer and copying from it.
* (See also flush_pending()).
*/
function read_buf(strm, buf, start, size) {
var len = strm.avail_in;
if (len > size) { len = size; }
if (len === 0) { return 0; }
strm.avail_in -= len;
utils.arraySet(buf, strm.input, strm.next_in, len, start);
if (strm.state.wrap === 1) {
strm.adler = adler32(strm.adler, buf, len, start);
}
else if (strm.state.wrap === 2) {
strm.adler = crc32(strm.adler, buf, len, start);
}
strm.next_in += len;
strm.total_in += len;
return len;
}
/* ===========================================================================
* Set match_start to the longest match starting at the given string and
* return its length. Matches shorter or equal to prev_length are discarded,
* in which case the result is equal to prev_length and match_start is
* garbage.
* IN assertions: cur_match is the head of the hash chain for the current
* string (strstart) and its distance is <= MAX_DIST, and prev_length >= 1
* OUT assertion: the match length is not greater than s->lookahead.
*/
function longest_match(s, cur_match) {
var chain_length = s.max_chain_length; /* max hash chain length */
var scan = s.strstart; /* current string */
var match; /* matched string */
var len; /* length of current match */
var best_len = s.prev_length; /* best match length so far */
var nice_match = s.nice_match; /* stop if match long enough */
var limit = (s.strstart > (s.w_size - MIN_LOOKAHEAD)) ?
s.strstart - (s.w_size - MIN_LOOKAHEAD) : 0/*NIL*/;
var _win = s.window; // shortcut
var wmask = s.w_mask;
var prev = s.prev;
/* Stop when cur_match becomes <= limit. To simplify the code,
* we prevent matches with the string of window index 0.
*/
var strend = s.strstart + MAX_MATCH;
var scan_end1 = _win[scan + best_len - 1];
var scan_end = _win[scan + best_len];
/* The code is optimized for HASH_BITS >= 8 and MAX_MATCH-2 multiple of 16.
* It is easy to get rid of this optimization if necessary.
*/
// Assert(s->hash_bits >= 8 && MAX_MATCH == 258, "Code too clever");
/* Do not waste too much time if we already have a good match: */
if (s.prev_length >= s.good_match) {
chain_length >>= 2;
}
/* Do not look for matches beyond the end of the input. This is necessary
* to make deflate deterministic.
*/
if (nice_match > s.lookahead) { nice_match = s.lookahead; }
// Assert((ulg)s->strstart <= s->window_size-MIN_LOOKAHEAD, "need lookahead");
do {
// Assert(cur_match < s->strstart, "no future");
match = cur_match;
/* Skip to next match if the match length cannot increase
* or if the match length is less than 2. Note that the checks below
* for insufficient lookahead only occur occasionally for performance
* reasons. Therefore uninitialized memory will be accessed, and
* conditional jumps will be made that depend on those values.
* However the length of the match is limited to the lookahead, so
* the output of deflate is not affected by the uninitialized values.
*/
if (_win[match + best_len] !== scan_end ||
_win[match + best_len - 1] !== scan_end1 ||
_win[match] !== _win[scan] ||
_win[++match] !== _win[scan + 1]) {
continue;
}
/* The check at best_len-1 can be removed because it will be made
* again later. (This heuristic is not always a win.)
* It is not necessary to compare scan[2] and match[2] since they
* are always equal when the other bytes match, given that
* the hash keys are equal and that HASH_BITS >= 8.
*/
scan += 2;
match++;
// Assert(*scan == *match, "match[2]?");
/* We check for insufficient lookahead only every 8th comparison;
* the 256th check will be made at strstart+258.
*/
do {
/*jshint noempty:false*/
} while (_win[++scan] === _win[++match] && _win[++scan] === _win[++match] &&
_win[++scan] === _win[++match] && _win[++scan] === _win[++match] &&
_win[++scan] === _win[++match] && _win[++scan] === _win[++match] &&
_win[++scan] === _win[++match] && _win[++scan] === _win[++match] &&
scan < strend);
// Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan");
len = MAX_MATCH - (strend - scan);
scan = strend - MAX_MATCH;
if (len > best_len) {
s.match_start = cur_match;
best_len = len;
if (len >= nice_match) {
break;
}
scan_end1 = _win[scan + best_len - 1];
scan_end = _win[scan + best_len];
}
} while ((cur_match = prev[cur_match & wmask]) > limit && --chain_length !== 0);
if (best_len <= s.lookahead) {
return best_len;
}
return s.lookahead;
}
/* ===========================================================================
* Fill the window when the lookahead becomes insufficient.
* Updates strstart and lookahead.
*
* IN assertion: lookahead < MIN_LOOKAHEAD
* OUT assertions: strstart <= window_size-MIN_LOOKAHEAD
* At least one byte has been read, or avail_in == 0; reads are
* performed for at least two bytes (required for the zip translate_eol
* option -- not supported here).
*/
function fill_window(s) {
var _w_size = s.w_size;
var p, n, m, more, str;
//Assert(s->lookahead < MIN_LOOKAHEAD, "already enough lookahead");
do {
more = s.window_size - s.lookahead - s.strstart;
// JS ints have 32 bit, block below not needed
/* Deal with !@#$% 64K limit: */
//if (sizeof(int) <= 2) {
// if (more == 0 && s->strstart == 0 && s->lookahead == 0) {
// more = wsize;
//
// } else if (more == (unsigned)(-1)) {
// /* Very unlikely, but possible on 16 bit machine if
// * strstart == 0 && lookahead == 1 (input done a byte at time)
// */
// more--;
// }
//}
/* If the window is almost full and there is insufficient lookahead,
* move the upper half to the lower one to make room in the upper half.
*/
if (s.strstart >= _w_size + (_w_size - MIN_LOOKAHEAD)) {
utils.arraySet(s.window, s.window, _w_size, _w_size, 0);
s.match_start -= _w_size;
s.strstart -= _w_size;
/* we now have strstart >= MAX_DIST */
s.block_start -= _w_size;
/* Slide the hash table (could be avoided with 32 bit values
at the expense of memory usage). We slide even when level == 0
to keep the hash table consistent if we switch back to level > 0
later. (Using level 0 permanently is not an optimal usage of
zlib, so we don't care about this pathological case.)
*/
n = s.hash_size;
p = n;
do {
m = s.head[--p];
s.head[p] = (m >= _w_size ? m - _w_size : 0);
} while (--n);
n = _w_size;
p = n;
do {
m = s.prev[--p];
s.prev[p] = (m >= _w_size ? m - _w_size : 0);
/* If n is not on any hash chain, prev[n] is garbage but
* its value will never be used.
*/
} while (--n);
more += _w_size;
}
if (s.strm.avail_in === 0) {
break;
}
/* If there was no sliding:
* strstart <= WSIZE+MAX_DIST-1 && lookahead <= MIN_LOOKAHEAD - 1 &&
* more == window_size - lookahead - strstart
* => more >= window_size - (MIN_LOOKAHEAD-1 + WSIZE + MAX_DIST-1)
* => more >= window_size - 2*WSIZE + 2
* In the BIG_MEM or MMAP case (not yet supported),
* window_size == input_size + MIN_LOOKAHEAD &&
* strstart + s->lookahead <= input_size => more >= MIN_LOOKAHEAD.
* Otherwise, window_size == 2*WSIZE so more >= 2.
* If there was sliding, more >= WSIZE. So in all cases, more >= 2.
*/
//Assert(more >= 2, "more < 2");
n = read_buf(s.strm, s.window, s.strstart + s.lookahead, more);
s.lookahead += n;
/* Initialize the hash value now that we have some input: */
if (s.lookahead + s.insert >= MIN_MATCH) {
str = s.strstart - s.insert;
s.ins_h = s.window[str];
/* UPDATE_HASH(s, s->ins_h, s->window[str + 1]); */
s.ins_h = ((s.ins_h << s.hash_shift) ^ s.window[str + 1]) & s.hash_mask;
//#if MIN_MATCH != 3
// Call update_hash() MIN_MATCH-3 more times
//#endif
while (s.insert) {
/* UPDATE_HASH(s, s->ins_h, s->window[str + MIN_MATCH-1]); */
s.ins_h = ((s.ins_h << s.hash_shift) ^ s.window[str + MIN_MATCH - 1]) & s.hash_mask;
s.prev[str & s.w_mask] = s.head[s.ins_h];
s.head[s.ins_h] = str;
str++;
s.insert--;
if (s.lookahead + s.insert < MIN_MATCH) {
break;
}
}
}
/* If the whole input has less than MIN_MATCH bytes, ins_h is garbage,
* but this is not important since only literal bytes will be emitted.
*/
} while (s.lookahead < MIN_LOOKAHEAD && s.strm.avail_in !== 0);
/* If the WIN_INIT bytes after the end of the current data have never been
* written, then zero those bytes in order to avoid memory check reports of
* the use of uninitialized (or uninitialised as Julian writes) bytes by
* the longest match routines. Update the high water mark for the next
* time through here. WIN_INIT is set to MAX_MATCH since the longest match
* routines allow scanning to strstart + MAX_MATCH, ignoring lookahead.
*/
// if (s.high_water < s.window_size) {
// var curr = s.strstart + s.lookahead;
// var init = 0;
//
// if (s.high_water < curr) {
// /* Previous high water mark below current data -- zero WIN_INIT
// * bytes or up to end of window, whichever is less.
// */
// init = s.window_size - curr;
// if (init > WIN_INIT)
// init = WIN_INIT;
// zmemzero(s->window + curr, (unsigned)init);
// s->high_water = curr + init;
// }
// else if (s->high_water < (ulg)curr + WIN_INIT) {
// /* High water mark at or above current data, but below current data
// * plus WIN_INIT -- zero out to current data plus WIN_INIT, or up
// * to end of window, whichever is less.
// */
// init = (ulg)curr + WIN_INIT - s->high_water;
// if (init > s->window_size - s->high_water)
// init = s->window_size - s->high_water;
// zmemzero(s->window + s->high_water, (unsigned)init);
// s->high_water += init;
// }
// }
//
// Assert((ulg)s->strstart <= s->window_size - MIN_LOOKAHEAD,
// "not enough room for search");
}
/* ===========================================================================
* Copy without compression as much as possible from the input stream, return
* the current block state.
* This function does not insert new strings in the dictionary since
* uncompressible data is probably not useful. This function is used
* only for the level=0 compression option.
* NOTE: this function should be optimized to avoid extra copying from
* window to pending_buf.
*/
function deflate_stored(s, flush) {
/* Stored blocks are limited to 0xffff bytes, pending_buf is limited
* to pending_buf_size, and each stored block has a 5 byte header:
*/
var max_block_size = 0xffff;
if (max_block_size > s.pending_buf_size - 5) {
max_block_size = s.pending_buf_size - 5;
}
/* Copy as much as possible from input to output: */
for (; ; ) {
/* Fill the window as much as possible: */
if (s.lookahead <= 1) {
//Assert(s->strstart < s->w_size+MAX_DIST(s) ||
// s->block_start >= (long)s->w_size, "slide too late");
// if (!(s.strstart < s.w_size + (s.w_size - MIN_LOOKAHEAD) ||
// s.block_start >= s.w_size)) {
// throw new Error("slide too late");
// }
fill_window(s);
if (s.lookahead === 0 && flush === Z_NO_FLUSH) {
return BS_NEED_MORE;
}
if (s.lookahead === 0) {
break;
}
/* flush the current block */
}
//Assert(s->block_start >= 0L, "block gone");
// if (s.block_start < 0) throw new Error("block gone");
s.strstart += s.lookahead;
s.lookahead = 0;
/* Emit a stored block if pending_buf will be full: */
var max_start = s.block_start + max_block_size;
if (s.strstart === 0 || s.strstart >= max_start) {
/* strstart == 0 is possible when wraparound on 16-bit machine */
s.lookahead = s.strstart - max_start;
s.strstart = max_start;
/*** FLUSH_BLOCK(s, 0); ***/
flush_block_only(s, false);
if (s.strm.avail_out === 0) {
return BS_NEED_MORE;
}
/***/
}
/* Flush if we may have to slide, otherwise block_start may become
* negative and the data will be gone:
*/
if (s.strstart - s.block_start >= (s.w_size - MIN_LOOKAHEAD)) {
/*** FLUSH_BLOCK(s, 0); ***/
flush_block_only(s, false);
if (s.strm.avail_out === 0) {
return BS_NEED_MORE;
}
/***/
}
}
s.insert = 0;
if (flush === Z_FINISH) {
/*** FLUSH_BLOCK(s, 1); ***/
flush_block_only(s, true);
if (s.strm.avail_out === 0) {
return BS_FINISH_STARTED;
}
/***/
return BS_FINISH_DONE;
}
if (s.strstart > s.block_start) {
/*** FLUSH_BLOCK(s, 0); ***/
flush_block_only(s, false);
if (s.strm.avail_out === 0) {
return BS_NEED_MORE;
}
/***/
}
return BS_NEED_MORE;
}
/* ===========================================================================
* Compress as much as possible from the input stream, return the current
* block state.
* This function does not perform lazy evaluation of matches and inserts
* new strings in the dictionary only for unmatched strings or for short
* matches. It is used only for the fast compression options.
*/
function deflate_fast(s, flush) {
var hash_head; /* head of the hash chain */
var bflush; /* set if current block must be flushed */
for (; ; ) {
/* Make sure that we always have enough lookahead, except
* at the end of the input file. We need MAX_MATCH bytes
* for the next match, plus MIN_MATCH bytes to insert the
* string following the next match.
*/
if (s.lookahead < MIN_LOOKAHEAD) {
fill_window(s);
if (s.lookahead < MIN_LOOKAHEAD && flush === Z_NO_FLUSH) {
return BS_NEED_MORE;
}
if (s.lookahead === 0) {
break; /* flush the current block */
}
}
/* Insert the string window[strstart .. strstart+2] in the
* dictionary, and set hash_head to the head of the hash chain:
*/
hash_head = 0/*NIL*/;
if (s.lookahead >= MIN_MATCH) {
/*** INSERT_STRING(s, s.strstart, hash_head); ***/
s.ins_h = ((s.ins_h << s.hash_shift) ^ s.window[s.strstart + MIN_MATCH - 1]) & s.hash_mask;
hash_head = s.prev[s.strstart & s.w_mask] = s.head[s.ins_h];
s.head[s.ins_h] = s.strstart;
/***/
}
/* Find the longest match, discarding those <= prev_length.
* At this point we have always match_length < MIN_MATCH
*/
if (hash_head !== 0/*NIL*/ && ((s.strstart - hash_head) <= (s.w_size - MIN_LOOKAHEAD))) {
/* To simplify the code, we prevent matches with the string
* of window index 0 (in particular we have to avoid a match
* of the string with itself at the start of the input file).
*/
s.match_length = longest_match(s, hash_head);
/* longest_match() sets match_start */
}
if (s.match_length >= MIN_MATCH) {
// check_match(s, s.strstart, s.match_start, s.match_length); // for debug only
/*** _tr_tally_dist(s, s.strstart - s.match_start,
s.match_length - MIN_MATCH, bflush); ***/
bflush = trees._tr_tally(s, s.strstart - s.match_start, s.match_length - MIN_MATCH);
s.lookahead -= s.match_length;
/* Insert new strings in the hash table only if the match length
* is not too large. This saves time but degrades compression.
*/
if (s.match_length <= s.max_lazy_match/*max_insert_length*/ && s.lookahead >= MIN_MATCH) {
s.match_length--; /* string at strstart already in table */
do {
s.strstart++;
/*** INSERT_STRING(s, s.strstart, hash_head); ***/
s.ins_h = ((s.ins_h << s.hash_shift) ^ s.window[s.strstart + MIN_MATCH - 1]) & s.hash_mask;
hash_head = s.prev[s.strstart & s.w_mask] = s.head[s.ins_h];
s.head[s.ins_h] = s.strstart;
/***/
/* strstart never exceeds WSIZE-MAX_MATCH, so there are
* always MIN_MATCH bytes ahead.
*/
} while (--s.match_length !== 0);
s.strstart++;
} else {
s.strstart += s.match_length;
s.match_length = 0;
s.ins_h = s.window[s.strstart];
/* UPDATE_HASH(s, s.ins_h, s.window[s.strstart+1]); */
s.ins_h = ((s.ins_h << s.hash_shift) ^ s.window[s.strstart + 1]) & s.hash_mask;
//#if MIN_MATCH != 3
// Call UPDATE_HASH() MIN_MATCH-3 more times
//#endif
/* If lookahead < MIN_MATCH, ins_h is garbage, but it does not
* matter since it will be recomputed at next deflate call.
*/
}
} else {
/* No match, output a literal byte */
//Tracevv((stderr,"%c", s.window[s.strstart]));
/*** _tr_tally_lit(s, s.window[s.strstart], bflush); ***/
bflush = trees._tr_tally(s, 0, s.window[s.strstart]);
s.lookahead--;
s.strstart++;
}
if (bflush) {
/*** FLUSH_BLOCK(s, 0); ***/
flush_block_only(s, false);
if (s.strm.avail_out === 0) {
return BS_NEED_MORE;
}
/***/
}
}
s.insert = ((s.strstart < (MIN_MATCH - 1)) ? s.strstart : MIN_MATCH - 1);
if (flush === Z_FINISH) {
/*** FLUSH_BLOCK(s, 1); ***/
flush_block_only(s, true);
if (s.strm.avail_out === 0) {
return BS_FINISH_STARTED;
}
/***/
return BS_FINISH_DONE;
}
if (s.last_lit) {
/*** FLUSH_BLOCK(s, 0); ***/
flush_block_only(s, false);
if (s.strm.avail_out === 0) {
return BS_NEED_MORE;
}
/***/
}
return BS_BLOCK_DONE;
}
/* ===========================================================================
* Same as above, but achieves better compression. We use a lazy
* evaluation for matches: a match is finally adopted only if there is
* no better match at the next window position.
*/
function deflate_slow(s, flush) {
var hash_head; /* head of hash chain */
var bflush; /* set if current block must be flushed */
var max_insert;
/* Process the input block. */
for (; ; ) {
/* Make sure that we always have enough lookahead, except
* at the end of the input file. We need MAX_MATCH bytes
* for the next match, plus MIN_MATCH bytes to insert the
* string following the next match.
*/
if (s.lookahead < MIN_LOOKAHEAD) {
fill_window(s);
if (s.lookahead < MIN_LOOKAHEAD && flush === Z_NO_FLUSH) {
return BS_NEED_MORE;
}
if (s.lookahead === 0) { break; } /* flush the current block */
}
/* Insert the string window[strstart .. strstart+2] in the
* dictionary, and set hash_head to the head of the hash chain:
*/
hash_head = 0/*NIL*/;
if (s.lookahead >= MIN_MATCH) {
/*** INSERT_STRING(s, s.strstart, hash_head); ***/
s.ins_h = ((s.ins_h << s.hash_shift) ^ s.window[s.strstart + MIN_MATCH - 1]) & s.hash_mask;
hash_head = s.prev[s.strstart & s.w_mask] = s.head[s.ins_h];
s.head[s.ins_h] = s.strstart;
/***/
}
/* Find the longest match, discarding those <= prev_length.
*/
s.prev_length = s.match_length;
s.prev_match = s.match_start;
s.match_length = MIN_MATCH - 1;
if (hash_head !== 0/*NIL*/ && s.prev_length < s.max_lazy_match &&
s.strstart - hash_head <= (s.w_size - MIN_LOOKAHEAD)/*MAX_DIST(s)*/) {
/* To simplify the code, we prevent matches with the string
* of window index 0 (in particular we have to avoid a match
* of the string with itself at the start of the input file).
*/
s.match_length = longest_match(s, hash_head);
/* longest_match() sets match_start */
if (s.match_length <= 5 &&
(s.strategy === Z_FILTERED || (s.match_length === MIN_MATCH && s.strstart - s.match_start > 4096/*TOO_FAR*/))) {
/* If prev_match is also MIN_MATCH, match_start is garbage
* but we will ignore the current match anyway.
*/
s.match_length = MIN_MATCH - 1;
}
}
/* If there was a match at the previous step and the current
* match is not better, output the previous match:
*/
if (s.prev_length >= MIN_MATCH && s.match_length <= s.prev_length) {
max_insert = s.strstart + s.lookahead - MIN_MATCH;
/* Do not insert strings in hash table beyond this. */
//check_match(s, s.strstart-1, s.prev_match, s.prev_length);
/***_tr_tally_dist(s, s.strstart - 1 - s.prev_match,
s.prev_length - MIN_MATCH, bflush);***/
bflush = trees._tr_tally(s, s.strstart - 1 - s.prev_match, s.prev_length - MIN_MATCH);
/* Insert in hash table all strings up to the end of the match.
* strstart-1 and strstart are already inserted. If there is not
* enough lookahead, the last two strings are not inserted in
* the hash table.
*/
s.lookahead -= s.prev_length - 1;
s.prev_length -= 2;
do {
if (++s.strstart <= max_insert) {
/*** INSERT_STRING(s, s.strstart, hash_head); ***/
s.ins_h = ((s.ins_h << s.hash_shift) ^ s.window[s.strstart + MIN_MATCH - 1]) & s.hash_mask;
hash_head = s.prev[s.strstart & s.w_mask] = s.head[s.ins_h];
s.head[s.ins_h] = s.strstart;
/***/
}
} while (--s.prev_length !== 0);
s.match_available = 0;
s.match_length = MIN_MATCH - 1;
s.strstart++;
if (bflush) {
/*** FLUSH_BLOCK(s, 0); ***/
flush_block_only(s, false);
if (s.strm.avail_out === 0) {
return BS_NEED_MORE;
}
/***/
}
} else if (s.match_available) {
/* If there was no match at the previous position, output a
* single literal. If there was a match but the current match
* is longer, truncate the previous match to a single literal.
*/
//Tracevv((stderr,"%c", s->window[s->strstart-1]));
/*** _tr_tally_lit(s, s.window[s.strstart-1], bflush); ***/
bflush = trees._tr_tally(s, 0, s.window[s.strstart - 1]);
if (bflush) {
/*** FLUSH_BLOCK_ONLY(s, 0) ***/
flush_block_only(s, false);
/***/
}
s.strstart++;
s.lookahead--;
if (s.strm.avail_out === 0) {
return BS_NEED_MORE;
}
} else {
/* There is no previous match to compare with, wait for
* the next step to decide.
*/
s.match_available = 1;
s.strstart++;
s.lookahead--;
}
}
//Assert (flush != Z_NO_FLUSH, "no flush?");
if (s.match_available) {
//Tracevv((stderr,"%c", s->window[s->strstart-1]));
/*** _tr_tally_lit(s, s.window[s.strstart-1], bflush); ***/
bflush = trees._tr_tally(s, 0, s.window[s.strstart - 1]);
s.match_available = 0;
}
s.insert = s.strstart < MIN_MATCH - 1 ? s.strstart : MIN_MATCH - 1;
if (flush === Z_FINISH) {
/*** FLUSH_BLOCK(s, 1); ***/
flush_block_only(s, true);
if (s.strm.avail_out === 0) {
return BS_FINISH_STARTED;
}
/***/
return BS_FINISH_DONE;
}
if (s.last_lit) {
/*** FLUSH_BLOCK(s, 0); ***/
flush_block_only(s, false);
if (s.strm.avail_out === 0) {
return BS_NEED_MORE;
}
/***/
}
return BS_BLOCK_DONE;
}
/* ===========================================================================
* For Z_RLE, simply look for runs of bytes, generate matches only of distance
* one. Do not maintain a hash table. (It will be regenerated if this run of
* deflate switches away from Z_RLE.)
*/
function deflate_rle(s, flush) {
var bflush; /* set if current block must be flushed */
var prev; /* byte at distance one to match */
var scan, strend; /* scan goes up to strend for length of run */
var _win = s.window;
for (; ; ) {
/* Make sure that we always have enough lookahead, except
* at the end of the input file. We need MAX_MATCH bytes
* for the longest run, plus one for the unrolled loop.
*/
if (s.lookahead <= MAX_MATCH) {
fill_window(s);
if (s.lookahead <= MAX_MATCH && flush === Z_NO_FLUSH) {
return BS_NEED_MORE;
}
if (s.lookahead === 0) { break; } /* flush the current block */
}
/* See how many times the previous byte repeats */
s.match_length = 0;
if (s.lookahead >= MIN_MATCH && s.strstart > 0) {
scan = s.strstart - 1;
prev = _win[scan];
if (prev === _win[++scan] && prev === _win[++scan] && prev === _win[++scan]) {
strend = s.strstart + MAX_MATCH;
do {
/*jshint noempty:false*/
} while (prev === _win[++scan] && prev === _win[++scan] &&
prev === _win[++scan] && prev === _win[++scan] &&
prev === _win[++scan] && prev === _win[++scan] &&
prev === _win[++scan] && prev === _win[++scan] &&
scan < strend);
s.match_length = MAX_MATCH - (strend - scan);
if (s.match_length > s.lookahead) {
s.match_length = s.lookahead;
}
}
//Assert(scan <= s->window+(uInt)(s->window_size-1), "wild scan");
}
/* Emit match if have run of MIN_MATCH or longer, else emit literal */
if (s.match_length >= MIN_MATCH) {
//check_match(s, s.strstart, s.strstart - 1, s.match_length);
/*** _tr_tally_dist(s, 1, s.match_length - MIN_MATCH, bflush); ***/
bflush = trees._tr_tally(s, 1, s.match_length - MIN_MATCH);
s.lookahead -= s.match_length;
s.strstart += s.match_length;
s.match_length = 0;
} else {
/* No match, output a literal byte */
//Tracevv((stderr,"%c", s->window[s->strstart]));
/*** _tr_tally_lit(s, s.window[s.strstart], bflush); ***/
bflush = trees._tr_tally(s, 0, s.window[s.strstart]);
s.lookahead--;
s.strstart++;
}
if (bflush) {
/*** FLUSH_BLOCK(s, 0); ***/
flush_block_only(s, false);
if (s.strm.avail_out === 0) {
return BS_NEED_MORE;
}
/***/
}
}
s.insert = 0;
if (flush === Z_FINISH) {
/*** FLUSH_BLOCK(s, 1); ***/
flush_block_only(s, true);
if (s.strm.avail_out === 0) {
return BS_FINISH_STARTED;
}
/***/
return BS_FINISH_DONE;
}
if (s.last_lit) {
/*** FLUSH_BLOCK(s, 0); ***/
flush_block_only(s, false);
if (s.strm.avail_out === 0) {
return BS_NEED_MORE;
}
/***/
}
return BS_BLOCK_DONE;
}
/* ===========================================================================
* For Z_HUFFMAN_ONLY, do not look for matches. Do not maintain a hash table.
* (It will be regenerated if this run of deflate switches away from Huffman.)
*/
function deflate_huff(s, flush) {
var bflush; /* set if current block must be flushed */
for (; ; ) {
/* Make sure that we have a literal to write. */
if (s.lookahead === 0) {
fill_window(s);
if (s.lookahead === 0) {
if (flush === Z_NO_FLUSH) {
return BS_NEED_MORE;
}
break; /* flush the current block */
}
}
/* Output a literal byte */
s.match_length = 0;
//Tracevv((stderr,"%c", s->window[s->strstart]));
/*** _tr_tally_lit(s, s.window[s.strstart], bflush); ***/
bflush = trees._tr_tally(s, 0, s.window[s.strstart]);
s.lookahead--;
s.strstart++;
if (bflush) {
/*** FLUSH_BLOCK(s, 0); ***/
flush_block_only(s, false);
if (s.strm.avail_out === 0) {
return BS_NEED_MORE;
}
/***/
}
}
s.insert = 0;
if (flush === Z_FINISH) {
/*** FLUSH_BLOCK(s, 1); ***/
flush_block_only(s, true);
if (s.strm.avail_out === 0) {
return BS_FINISH_STARTED;
}
/***/
return BS_FINISH_DONE;
}
if (s.last_lit) {
/*** FLUSH_BLOCK(s, 0); ***/
flush_block_only(s, false);
if (s.strm.avail_out === 0) {
return BS_NEED_MORE;
}
/***/
}
return BS_BLOCK_DONE;
}
/* Values for max_lazy_match, good_match and max_chain_length, depending on
* the desired pack level (0..9). The values given below have been tuned to
* exclude worst case performance for pathological files. Better values may be
* found for specific files.
*/
var Config = function (good_length, max_lazy, nice_length, max_chain, func) {
this.good_length = good_length;
this.max_lazy = max_lazy;
this.nice_length = nice_length;
this.max_chain = max_chain;
this.func = func;
};
var configuration_table;
configuration_table = [
/* good lazy nice chain */
new Config(0, 0, 0, 0, deflate_stored), /* 0 store only */
new Config(4, 4, 8, 4, deflate_fast), /* 1 max speed, no lazy matches */
new Config(4, 5, 16, 8, deflate_fast), /* 2 */
new Config(4, 6, 32, 32, deflate_fast), /* 3 */
new Config(4, 4, 16, 16, deflate_slow), /* 4 lazy matches */
new Config(8, 16, 32, 32, deflate_slow), /* 5 */
new Config(8, 16, 128, 128, deflate_slow), /* 6 */
new Config(8, 32, 128, 256, deflate_slow), /* 7 */
new Config(32, 128, 258, 1024, deflate_slow), /* 8 */
new Config(32, 258, 258, 4096, deflate_slow) /* 9 max compression */
];
/* ===========================================================================
* Initialize the "longest match" routines for a new zlib stream
*/
function lm_init(s) {
s.window_size = 2 * s.w_size;
/*** CLEAR_HASH(s); ***/
zero(s.head); // Fill with NIL (= 0);
/* Set the default configuration parameters:
*/
s.max_lazy_match = configuration_table[s.level].max_lazy;
s.good_match = configuration_table[s.level].good_length;
s.nice_match = configuration_table[s.level].nice_length;
s.max_chain_length = configuration_table[s.level].max_chain;
s.strstart = 0;
s.block_start = 0;
s.lookahead = 0;
s.insert = 0;
s.match_length = s.prev_length = MIN_MATCH - 1;
s.match_available = 0;
s.ins_h = 0;
}
function DeflateState() {
this.strm = null; /* pointer back to this zlib stream */
this.status = 0; /* as the name implies */
this.pending_buf = null; /* output still pending */
this.pending_buf_size = 0; /* size of pending_buf */
this.pending_out = 0; /* next pending byte to output to the stream */
this.pending = 0; /* nb of bytes in the pending buffer */
this.wrap = 0; /* bit 0 true for zlib, bit 1 true for gzip */
this.gzhead = null; /* gzip header information to write */
this.gzindex = 0; /* where in extra, name, or comment */
this.method = Z_DEFLATED; /* can only be DEFLATED */
this.last_flush = -1; /* value of flush param for previous deflate call */
this.w_size = 0; /* LZ77 window size (32K by default) */
this.w_bits = 0; /* log2(w_size) (8..16) */
this.w_mask = 0; /* w_size - 1 */
this.window = null;
/* Sliding window. Input bytes are read into the second half of the window,
* and move to the first half later to keep a dictionary of at least wSize
* bytes. With this organization, matches are limited to a distance of
* wSize-MAX_MATCH bytes, but this ensures that IO is always
* performed with a length multiple of the block size.
*/
this.window_size = 0;
/* Actual size of window: 2*wSize, except when the user input buffer
* is directly used as sliding window.
*/
this.prev = null;
/* Link to older string with same hash index. To limit the size of this
* array to 64K, this link is maintained only for the last 32K strings.
* An index in this array is thus a window index modulo 32K.
*/
this.head = null; /* Heads of the hash chains or NIL. */
this.ins_h = 0; /* hash index of string to be inserted */
this.hash_size = 0; /* number of elements in hash table */
this.hash_bits = 0; /* log2(hash_size) */
this.hash_mask = 0; /* hash_size-1 */
this.hash_shift = 0;
/* Number of bits by which ins_h must be shifted at each input
* step. It must be such that after MIN_MATCH steps, the oldest
* byte no longer takes part in the hash key, that is:
* hash_shift * MIN_MATCH >= hash_bits
*/
this.block_start = 0;
/* Window position at the beginning of the current output block. Gets
* negative when the window is moved backwards.
*/
this.match_length = 0; /* length of best match */
this.prev_match = 0; /* previous match */
this.match_available = 0; /* set if previous match exists */
this.strstart = 0; /* start of string to insert */
this.match_start = 0; /* start of matching string */
this.lookahead = 0; /* number of valid bytes ahead in window */
this.prev_length = 0;
/* Length of the best match at previous step. Matches not greater than this
* are discarded. This is used in the lazy match evaluation.
*/
this.max_chain_length = 0;
/* To speed up deflation, hash chains are never searched beyond this
* length. A higher limit improves compression ratio but degrades the
* speed.
*/
this.max_lazy_match = 0;
/* Attempt to find a better match only when the current match is strictly
* smaller than this value. This mechanism is used only for compression
* levels >= 4.
*/
// That's alias to max_lazy_match, don't use directly
//this.max_insert_length = 0;
/* Insert new strings in the hash table only if the match length is not
* greater than this length. This saves time but degrades compression.
* max_insert_length is used only for compression levels <= 3.
*/
this.level = 0; /* compression level (1..9) */
this.strategy = 0; /* favor or force Huffman coding*/
this.good_match = 0;
/* Use a faster search when the previous match is longer than this */
this.nice_match = 0; /* Stop searching when current match exceeds this */
/* used by trees.c: */
/* Didn't use ct_data typedef below to suppress compiler warning */
// struct ct_data_s dyn_ltree[HEAP_SIZE]; /* literal and length tree */
// struct ct_data_s dyn_dtree[2*D_CODES+1]; /* distance tree */
// struct ct_data_s bl_tree[2*BL_CODES+1]; /* Huffman tree for bit lengths */
// Use flat array of DOUBLE size, with interleaved fata,
// because JS does not support effective
this.dyn_ltree = new utils.Buf16(HEAP_SIZE * 2);
this.dyn_dtree = new utils.Buf16((2 * D_CODES + 1) * 2);
this.bl_tree = new utils.Buf16((2 * BL_CODES + 1) * 2);
zero(this.dyn_ltree);
zero(this.dyn_dtree);
zero(this.bl_tree);
this.l_desc = null; /* desc. for literal tree */
this.d_desc = null; /* desc. for distance tree */
this.bl_desc = null; /* desc. for bit length tree */
//ush bl_count[MAX_BITS+1];
this.bl_count = new utils.Buf16(MAX_BITS + 1);
/* number of codes at each bit length for an optimal tree */
//int heap[2*L_CODES+1]; /* heap used to build the Huffman trees */
this.heap = new utils.Buf16(2 * L_CODES + 1); /* heap used to build the Huffman trees */
zero(this.heap);
this.heap_len = 0; /* number of elements in the heap */
this.heap_max = 0; /* element of largest frequency */
/* The sons of heap[n] are heap[2*n] and heap[2*n+1]. heap[0] is not used.
* The same heap array is used to build all trees.
*/
this.depth = new utils.Buf16(2 * L_CODES + 1); //uch depth[2*L_CODES+1];
zero(this.depth);
/* Depth of each subtree used as tie breaker for trees of equal frequency
*/
this.l_buf = 0; /* buffer index for literals or lengths */
this.lit_bufsize = 0;
/* Size of match buffer for literals/lengths. There are 4 reasons for
* limiting lit_bufsize to 64K:
* - frequencies can be kept in 16 bit counters
* - if compression is not successful for the first block, all input
* data is still in the window so we can still emit a stored block even
* when input comes from standard input. (This can also be done for
* all blocks if lit_bufsize is not greater than 32K.)
* - if compression is not successful for a file smaller than 64K, we can
* even emit a stored file instead of a stored block (saving 5 bytes).
* This is applicable only for zip (not gzip or zlib).
* - creating new Huffman trees less frequently may not provide fast
* adaptation to changes in the input data statistics. (Take for
* example a binary file with poorly compressible code followed by
* a highly compressible string table.) Smaller buffer sizes give
* fast adaptation but have of course the overhead of transmitting
* trees more frequently.
* - I can't count above 4
*/
this.last_lit = 0; /* running index in l_buf */
this.d_buf = 0;
/* Buffer index for distances. To simplify the code, d_buf and l_buf have
* the same number of elements. To use different lengths, an extra flag
* array would be necessary.
*/
this.opt_len = 0; /* bit length of current block with optimal trees */
this.static_len = 0; /* bit length of current block with static trees */
this.matches = 0; /* number of string matches in current block */
this.insert = 0; /* bytes at end of window left to insert */
this.bi_buf = 0;
/* Output buffer. bits are inserted starting at the bottom (least
* significant bits).
*/
this.bi_valid = 0;
/* Number of valid bits in bi_buf. All bits above the last valid bit
* are always zero.
*/
// Used for window memory init. We safely ignore it for JS. That makes
// sense only for pointers and memory check tools.
//this.high_water = 0;
/* High water mark offset in window for initialized bytes -- bytes above
* this are set to zero in order to avoid memory check warnings when
* longest match routines access bytes past the input. This is then
* updated to the new high water mark.
*/
}
function deflateResetKeep(strm) {
var s;
if (!strm || !strm.state) {
return err(strm, Z_STREAM_ERROR);
}
strm.total_in = strm.total_out = 0;
strm.data_type = Z_UNKNOWN;
s = strm.state;
s.pending = 0;
s.pending_out = 0;
if (s.wrap < 0) {
s.wrap = -s.wrap;
/* was made negative by deflate(..., Z_FINISH); */
}
s.status = (s.wrap ? INIT_STATE : BUSY_STATE);
strm.adler = (s.wrap === 2) ?
0 // crc32(0, Z_NULL, 0)
:
1; // adler32(0, Z_NULL, 0)
s.last_flush = Z_NO_FLUSH;
trees._tr_init(s);
return Z_OK;
}
function deflateReset(strm) {
var ret = deflateResetKeep(strm);
if (ret === Z_OK) {
lm_init(strm.state);
}
return ret;
}
function deflateSetHeader(strm, head) {
if (!strm || !strm.state) { return Z_STREAM_ERROR; }
if (strm.state.wrap !== 2) { return Z_STREAM_ERROR; }
strm.state.gzhead = head;
return Z_OK;
}
function deflateInit2(strm, level, method, windowBits, memLevel, strategy) {
if (!strm) { // === Z_NULL
return Z_STREAM_ERROR;
}
var wrap = 1;
if (level === Z_DEFAULT_COMPRESSION) {
level = 6;
}
if (windowBits < 0) { /* suppress zlib wrapper */
wrap = 0;
windowBits = -windowBits;
}
else if (windowBits > 15) {
wrap = 2; /* write gzip wrapper instead */
windowBits -= 16;
}
if (memLevel < 1 || memLevel > MAX_MEM_LEVEL || method !== Z_DEFLATED ||
windowBits < 8 || windowBits > 15 || level < 0 || level > 9 ||
strategy < 0 || strategy > Z_FIXED) {
return err(strm, Z_STREAM_ERROR);
}
if (windowBits === 8) {
windowBits = 9;
}
/* until 256-byte window bug fixed */
var s = new DeflateState();
strm.state = s;
s.strm = strm;
s.wrap = wrap;
s.gzhead = null;
s.w_bits = windowBits;
s.w_size = 1 << s.w_bits;
s.w_mask = s.w_size - 1;
s.hash_bits = memLevel + 7;
s.hash_size = 1 << s.hash_bits;
s.hash_mask = s.hash_size - 1;
s.hash_shift = ~ ~((s.hash_bits + MIN_MATCH - 1) / MIN_MATCH);
s.window = new utils.Buf8(s.w_size * 2);
s.head = new utils.Buf16(s.hash_size);
s.prev = new utils.Buf16(s.w_size);
// Don't need mem init magic for JS.
//s.high_water = 0; /* nothing written to s->window yet */
s.lit_bufsize = 1 << (memLevel + 6); /* 16K elements by default */
s.pending_buf_size = s.lit_bufsize * 4;
s.pending_buf = new utils.Buf8(s.pending_buf_size);
s.d_buf = s.lit_bufsize >> 1;
s.l_buf = (1 + 2) * s.lit_bufsize;
s.level = level;
s.strategy = strategy;
s.method = method;
return deflateReset(strm);
}
function deflateInit(strm, level) {
return deflateInit2(strm, level, Z_DEFLATED, MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY);
}
function deflate(strm, flush) {
var old_flush, s;
var beg, val; // for gzip header write only
if (!strm || !strm.state ||
flush > Z_BLOCK || flush < 0) {
return strm ? err(strm, Z_STREAM_ERROR) : Z_STREAM_ERROR;
}
s = strm.state;
if (!strm.output ||
(!strm.input && strm.avail_in !== 0) ||
(s.status === FINISH_STATE && flush !== Z_FINISH)) {
return err(strm, (strm.avail_out === 0) ? Z_BUF_ERROR : Z_STREAM_ERROR);
}
s.strm = strm; /* just in case */
old_flush = s.last_flush;
s.last_flush = flush;
/* Write the header */
if (s.status === INIT_STATE) {
if (s.wrap === 2) { // GZIP header
strm.adler = 0; //crc32(0L, Z_NULL, 0);
put_byte(s, 31);
put_byte(s, 139);
put_byte(s, 8);
if (!s.gzhead) { // s->gzhead == Z_NULL
put_byte(s, 0);
put_byte(s, 0);
put_byte(s, 0);
put_byte(s, 0);
put_byte(s, 0);
put_byte(s, s.level === 9 ? 2 :
(s.strategy >= Z_HUFFMAN_ONLY || s.level < 2 ?
4 : 0));
put_byte(s, OS_CODE);
s.status = BUSY_STATE;
}
else {
put_byte(s, (s.gzhead.text ? 1 : 0) +
(s.gzhead.hcrc ? 2 : 0) +
(!s.gzhead.extra ? 0 : 4) +
(!s.gzhead.name ? 0 : 8) +
(!s.gzhead.comment ? 0 : 16)
);
put_byte(s, s.gzhead.time & 0xff);
put_byte(s, (s.gzhead.time >> 8) & 0xff);
put_byte(s, (s.gzhead.time >> 16) & 0xff);
put_byte(s, (s.gzhead.time >> 24) & 0xff);
put_byte(s, s.level === 9 ? 2 :
(s.strategy >= Z_HUFFMAN_ONLY || s.level < 2 ?
4 : 0));
put_byte(s, s.gzhead.os & 0xff);
if (s.gzhead.extra && s.gzhead.extra.length) {
put_byte(s, s.gzhead.extra.length & 0xff);
put_byte(s, (s.gzhead.extra.length >> 8) & 0xff);
}
if (s.gzhead.hcrc) {
strm.adler = crc32(strm.adler, s.pending_buf, s.pending, 0);
}
s.gzindex = 0;
s.status = EXTRA_STATE;
}
}
else // DEFLATE header
{
var header = (Z_DEFLATED + ((s.w_bits - 8) << 4)) << 8;
var level_flags = -1;
if (s.strategy >= Z_HUFFMAN_ONLY || s.level < 2) {
level_flags = 0;
} else if (s.level < 6) {
level_flags = 1;
} else if (s.level === 6) {
level_flags = 2;
} else {
level_flags = 3;
}
header |= (level_flags << 6);
if (s.strstart !== 0) { header |= PRESET_DICT; }
header += 31 - (header % 31);
s.status = BUSY_STATE;
putShortMSB(s, header);
/* Save the adler32 of the preset dictionary: */
if (s.strstart !== 0) {
putShortMSB(s, strm.adler >>> 16);
putShortMSB(s, strm.adler & 0xffff);
}
strm.adler = 1; // adler32(0L, Z_NULL, 0);
}
}
//#ifdef GZIP
if (s.status === EXTRA_STATE) {
if (s.gzhead.extra/* != Z_NULL*/) {
beg = s.pending; /* start of bytes to update crc */
while (s.gzindex < (s.gzhead.extra.length & 0xffff)) {
if (s.pending === s.pending_buf_size) {
if (s.gzhead.hcrc && s.pending > beg) {
strm.adler = crc32(strm.adler, s.pending_buf, s.pending - beg, beg);
}
flush_pending(strm);
beg = s.pending;
if (s.pending === s.pending_buf_size) {
break;
}
}
put_byte(s, s.gzhead.extra[s.gzindex] & 0xff);
s.gzindex++;
}
if (s.gzhead.hcrc && s.pending > beg) {
strm.adler = crc32(strm.adler, s.pending_buf, s.pending - beg, beg);
}
if (s.gzindex === s.gzhead.extra.length) {
s.gzindex = 0;
s.status = NAME_STATE;
}
}
else {
s.status = NAME_STATE;
}
}
if (s.status === NAME_STATE) {
if (s.gzhead.name/* != Z_NULL*/) {
beg = s.pending; /* start of bytes to update crc */
//int val;
do {
if (s.pending === s.pending_buf_size) {
if (s.gzhead.hcrc && s.pending > beg) {
strm.adler = crc32(strm.adler, s.pending_buf, s.pending - beg, beg);
}
flush_pending(strm);
beg = s.pending;
if (s.pending === s.pending_buf_size) {
val = 1;
break;
}
}
// JS specific: little magic to add zero terminator to end of string
if (s.gzindex < s.gzhead.name.length) {
val = s.gzhead.name.charCodeAt(s.gzindex++) & 0xff;
} else {
val = 0;
}
put_byte(s, val);
} while (val !== 0);
if (s.gzhead.hcrc && s.pending > beg) {
strm.adler = crc32(strm.adler, s.pending_buf, s.pending - beg, beg);
}
if (val === 0) {
s.gzindex = 0;
s.status = COMMENT_STATE;
}
}
else {
s.status = COMMENT_STATE;
}
}
if (s.status === COMMENT_STATE) {
if (s.gzhead.comment/* != Z_NULL*/) {
beg = s.pending; /* start of bytes to update crc */
//int val;
do {
if (s.pending === s.pending_buf_size) {
if (s.gzhead.hcrc && s.pending > beg) {
strm.adler = crc32(strm.adler, s.pending_buf, s.pending - beg, beg);
}
flush_pending(strm);
beg = s.pending;
if (s.pending === s.pending_buf_size) {
val = 1;
break;
}
}
// JS specific: little magic to add zero terminator to end of string
if (s.gzindex < s.gzhead.comment.length) {
val = s.gzhead.comment.charCodeAt(s.gzindex++) & 0xff;
} else {
val = 0;
}
put_byte(s, val);
} while (val !== 0);
if (s.gzhead.hcrc && s.pending > beg) {
strm.adler = crc32(strm.adler, s.pending_buf, s.pending - beg, beg);
}
if (val === 0) {
s.status = HCRC_STATE;
}
}
else {
s.status = HCRC_STATE;
}
}
if (s.status === HCRC_STATE) {
if (s.gzhead.hcrc) {
if (s.pending + 2 > s.pending_buf_size) {
flush_pending(strm);
}
if (s.pending + 2 <= s.pending_buf_size) {
put_byte(s, strm.adler & 0xff);
put_byte(s, (strm.adler >> 8) & 0xff);
strm.adler = 0; //crc32(0L, Z_NULL, 0);
s.status = BUSY_STATE;
}
}
else {
s.status = BUSY_STATE;
}
}
//#endif
/* Flush as much pending output as possible */
if (s.pending !== 0) {
flush_pending(strm);
if (strm.avail_out === 0) {
/* Since avail_out is 0, deflate will be called again with
* more output space, but possibly with both pending and
* avail_in equal to zero. There won't be anything to do,
* but this is not an error situation so make sure we
* return OK instead of BUF_ERROR at next call of deflate:
*/
s.last_flush = -1;
return Z_OK;
}
/* Make sure there is something to do and avoid duplicate consecutive
* flushes. For repeated and useless calls with Z_FINISH, we keep
* returning Z_STREAM_END instead of Z_BUF_ERROR.
*/
} else if (strm.avail_in === 0 && rank(flush) <= rank(old_flush) &&
flush !== Z_FINISH) {
return err(strm, Z_BUF_ERROR);
}
/* User must not provide more input after the first FINISH: */
if (s.status === FINISH_STATE && strm.avail_in !== 0) {
return err(strm, Z_BUF_ERROR);
}
/* Start a new block or continue the current one.
*/
if (strm.avail_in !== 0 || s.lookahead !== 0 ||
(flush !== Z_NO_FLUSH && s.status !== FINISH_STATE)) {
var bstate = (s.strategy === Z_HUFFMAN_ONLY) ? deflate_huff(s, flush) :
(s.strategy === Z_RLE ? deflate_rle(s, flush) :
configuration_table[s.level].func(s, flush));
if (bstate === BS_FINISH_STARTED || bstate === BS_FINISH_DONE) {
s.status = FINISH_STATE;
}
if (bstate === BS_NEED_MORE || bstate === BS_FINISH_STARTED) {
if (strm.avail_out === 0) {
s.last_flush = -1;
/* avoid BUF_ERROR next call, see above */
}
return Z_OK;
/* If flush != Z_NO_FLUSH && avail_out == 0, the next call
* of deflate should use the same flush parameter to make sure
* that the flush is complete. So we don't have to output an
* empty block here, this will be done at next call. This also
* ensures that for a very small output buffer, we emit at most
* one empty block.
*/
}
if (bstate === BS_BLOCK_DONE) {
if (flush === Z_PARTIAL_FLUSH) {
trees._tr_align(s);
}
else if (flush !== Z_BLOCK) { /* FULL_FLUSH or SYNC_FLUSH */
trees._tr_stored_block(s, 0, 0, false);
/* For a full flush, this empty block will be recognized
* as a special marker by inflate_sync().
*/
if (flush === Z_FULL_FLUSH) {
/*** CLEAR_HASH(s); ***/ /* forget history */
zero(s.head); // Fill with NIL (= 0);
if (s.lookahead === 0) {
s.strstart = 0;
s.block_start = 0;
s.insert = 0;
}
}
}
flush_pending(strm);
if (strm.avail_out === 0) {
s.last_flush = -1; /* avoid BUF_ERROR at next call, see above */
return Z_OK;
}
}
}
//Assert(strm->avail_out > 0, "bug2");
//if (strm.avail_out <= 0) { throw new Error("bug2");}
if (flush !== Z_FINISH) { return Z_OK; }
if (s.wrap <= 0) { return Z_STREAM_END; }
/* Write the trailer */
if (s.wrap === 2) {
put_byte(s, strm.adler & 0xff);
put_byte(s, (strm.adler >> 8) & 0xff);
put_byte(s, (strm.adler >> 16) & 0xff);
put_byte(s, (strm.adler >> 24) & 0xff);
put_byte(s, strm.total_in & 0xff);
put_byte(s, (strm.total_in >> 8) & 0xff);
put_byte(s, (strm.total_in >> 16) & 0xff);
put_byte(s, (strm.total_in >> 24) & 0xff);
}
else {
putShortMSB(s, strm.adler >>> 16);
putShortMSB(s, strm.adler & 0xffff);
}
flush_pending(strm);
/* If avail_out is zero, the application will call deflate again
* to flush the rest.
*/
if (s.wrap > 0) { s.wrap = -s.wrap; }
/* write the trailer only once! */
return s.pending !== 0 ? Z_OK : Z_STREAM_END;
}
function deflateEnd(strm) {
var status;
if (!strm/*== Z_NULL*/ || !strm.state/*== Z_NULL*/) {
return Z_STREAM_ERROR;
}
status = strm.state.status;
if (status !== INIT_STATE &&
status !== EXTRA_STATE &&
status !== NAME_STATE &&
status !== COMMENT_STATE &&
status !== HCRC_STATE &&
status !== BUSY_STATE &&
status !== FINISH_STATE
) {
return err(strm, Z_STREAM_ERROR);
}
strm.state = null;
return status === BUSY_STATE ? err(strm, Z_DATA_ERROR) : Z_OK;
}
/* =========================================================================
* Copy the source state to the destination state
*/
//function deflateCopy(dest, source) {
//
//}
exports.deflateInit = deflateInit;
exports.deflateInit2 = deflateInit2;
exports.deflateReset = deflateReset;
exports.deflateResetKeep = deflateResetKeep;
exports.deflateSetHeader = deflateSetHeader;
exports.deflate = deflate;
exports.deflateEnd = deflateEnd;
exports.deflateInfo = 'pako deflate (from Nodeca project)';
/* Not implemented
exports.deflateBound = deflateBound;
exports.deflateCopy = deflateCopy;
exports.deflateSetDictionary = deflateSetDictionary;
exports.deflateParams = deflateParams;
exports.deflatePending = deflatePending;
exports.deflatePrime = deflatePrime;
exports.deflateTune = deflateTune;
*/
}, { "../utils/common": 40, "./adler32": 42, "./crc32": 44, "./messages": 50, "./trees": 51}], 46: [function (require, module, exports) {
'use strict';
function GZheader() {
/* true if compressed data believed to be text */
this.text = 0;
/* modification time */
this.time = 0;
/* extra flags (not used when writing a gzip file) */
this.xflags = 0;
/* operating system */
this.os = 0;
/* pointer to extra field or Z_NULL if none */
this.extra = null;
/* extra field length (valid if extra != Z_NULL) */
this.extra_len = 0; // Actually, we don't need it in JS,
// but leave for few code modifications
//
// Setup limits is not necessary because in js we should not preallocate memory
// for inflate use constant limit in 65536 bytes
//
/* space at extra (only when reading header) */
// this.extra_max = 0;
/* pointer to zero-terminated file name or Z_NULL */
this.name = '';
/* space at name (only when reading header) */
// this.name_max = 0;
/* pointer to zero-terminated comment or Z_NULL */
this.comment = '';
/* space at comment (only when reading header) */
// this.comm_max = 0;
/* true if there was or will be a header crc */
this.hcrc = 0;
/* true when done reading gzip header (not used when writing a gzip file) */
this.done = false;
}
module.exports = GZheader;
}, {}], 47: [function (require, module, exports) {
'use strict';
// See state defs from inflate.js
var BAD = 30; /* got a data error -- remain here until reset */
var TYPE = 12; /* i: waiting for type bits, including last-flag bit */
/*
Decode literal, length, and distance codes and write out the resulting
literal and match bytes until either not enough input or output is
available, an end-of-block is encountered, or a data error is encountered.
When large enough input and output buffers are supplied to inflate(), for
example, a 16K input buffer and a 64K output buffer, more than 95% of the
inflate execution time is spent in this routine.
Entry assumptions:
state.mode === LEN
strm.avail_in >= 6
strm.avail_out >= 258
start >= strm.avail_out
state.bits < 8
On return, state.mode is one of:
LEN -- ran out of enough output space or enough available input
TYPE -- reached end of block code, inflate() to interpret next block
BAD -- error in block data
Notes:
- The maximum input bits used by a length/distance pair is 15 bits for the
length code, 5 bits for the length extra, 15 bits for the distance code,
and 13 bits for the distance extra. This totals 48 bits, or six bytes.
Therefore if strm.avail_in >= 6, then there is enough input to avoid
checking for available input while decoding.
- The maximum bytes that a single length/distance pair can output is 258
bytes, which is the maximum length that can be coded. inflate_fast()
requires strm.avail_out >= 258 for each loop to avoid checking for
output space.
*/
module.exports = function inflate_fast(strm, start) {
var state;
var _in; /* local strm.input */
var last; /* have enough input while in < last */
var _out; /* local strm.output */
var beg; /* inflate()'s initial strm.output */
var end; /* while out < end, enough space available */
//#ifdef INFLATE_STRICT
var dmax; /* maximum distance from zlib header */
//#endif
var wsize; /* window size or zero if not using window */
var whave; /* valid bytes in the window */
var wnext; /* window write index */
// Use `s_window` instead `window`, avoid conflict with instrumentation tools
var s_window; /* allocated sliding window, if wsize != 0 */
var hold; /* local strm.hold */
var bits; /* local strm.bits */
var lcode; /* local strm.lencode */
var dcode; /* local strm.distcode */
var lmask; /* mask for first level of length codes */
var dmask; /* mask for first level of distance codes */
var here; /* retrieved table entry */
var op; /* code bits, operation, extra bits, or */
/* window position, window bytes to copy */
var len; /* match length, unused bytes */
var dist; /* match distance */
var from; /* where to copy match from */
var from_source;
var input, output; // JS specific, because we have no pointers
/* copy state to local variables */
state = strm.state;
//here = state.here;
_in = strm.next_in;
input = strm.input;
last = _in + (strm.avail_in - 5);
_out = strm.next_out;
output = strm.output;
beg = _out - (start - strm.avail_out);
end = _out + (strm.avail_out - 257);
//#ifdef INFLATE_STRICT
dmax = state.dmax;
//#endif
wsize = state.wsize;
whave = state.whave;
wnext = state.wnext;
s_window = state.window;
hold = state.hold;
bits = state.bits;
lcode = state.lencode;
dcode = state.distcode;
lmask = (1 << state.lenbits) - 1;
dmask = (1 << state.distbits) - 1;
/* decode literals and length/distances until end-of-block or not enough
input data or output space */
top:
do {
if (bits < 15) {
hold += input[_in++] << bits;
bits += 8;
hold += input[_in++] << bits;
bits += 8;
}
here = lcode[hold & lmask];
dolen:
for (; ; ) { // Goto emulation
op = here >>> 24/*here.bits*/;
hold >>>= op;
bits -= op;
op = (here >>> 16) & 0xff/*here.op*/;
if (op === 0) { /* literal */
//Tracevv((stderr, here.val >= 0x20 && here.val < 0x7f ?
// "inflate: literal '%c'\n" :
// "inflate: literal 0x%02x\n", here.val));
output[_out++] = here & 0xffff/*here.val*/;
}
else if (op & 16) { /* length base */
len = here & 0xffff/*here.val*/;
op &= 15; /* number of extra bits */
if (op) {
if (bits < op) {
hold += input[_in++] << bits;
bits += 8;
}
len += hold & ((1 << op) - 1);
hold >>>= op;
bits -= op;
}
//Tracevv((stderr, "inflate: length %u\n", len));
if (bits < 15) {
hold += input[_in++] << bits;
bits += 8;
hold += input[_in++] << bits;
bits += 8;
}
here = dcode[hold & dmask];
dodist:
for (; ; ) { // goto emulation
op = here >>> 24/*here.bits*/;
hold >>>= op;
bits -= op;
op = (here >>> 16) & 0xff/*here.op*/;
if (op & 16) { /* distance base */
dist = here & 0xffff/*here.val*/;
op &= 15; /* number of extra bits */
if (bits < op) {
hold += input[_in++] << bits;
bits += 8;
if (bits < op) {
hold += input[_in++] << bits;
bits += 8;
}
}
dist += hold & ((1 << op) - 1);
//#ifdef INFLATE_STRICT
if (dist > dmax) {
strm.msg = 'invalid distance too far back';
state.mode = BAD;
break top;
}
//#endif
hold >>>= op;
bits -= op;
//Tracevv((stderr, "inflate: distance %u\n", dist));
op = _out - beg; /* max distance in output */
if (dist > op) { /* see if copy from window */
op = dist - op; /* distance back in window */
if (op > whave) {
if (state.sane) {
strm.msg = 'invalid distance too far back';
state.mode = BAD;
break top;
}
// (!) This block is disabled in zlib defailts,
// don't enable it for binary compatibility
//#ifdef INFLATE_ALLOW_INVALID_DISTANCE_TOOFAR_ARRR
// if (len <= op - whave) {
// do {
// output[_out++] = 0;
// } while (--len);
// continue top;
// }
// len -= op - whave;
// do {
// output[_out++] = 0;
// } while (--op > whave);
// if (op === 0) {
// from = _out - dist;
// do {
// output[_out++] = output[from++];
// } while (--len);
// continue top;
// }
//#endif
}
from = 0; // window index
from_source = s_window;
if (wnext === 0) { /* very common case */
from += wsize - op;
if (op < len) { /* some from window */
len -= op;
do {
output[_out++] = s_window[from++];
} while (--op);
from = _out - dist; /* rest from output */
from_source = output;
}
}
else if (wnext < op) { /* wrap around window */
from += wsize + wnext - op;
op -= wnext;
if (op < len) { /* some from end of window */
len -= op;
do {
output[_out++] = s_window[from++];
} while (--op);
from = 0;
if (wnext < len) { /* some from start of window */
op = wnext;
len -= op;
do {
output[_out++] = s_window[from++];
} while (--op);
from = _out - dist; /* rest from output */
from_source = output;
}
}
}
else { /* contiguous in window */
from += wnext - op;
if (op < len) { /* some from window */
len -= op;
do {
output[_out++] = s_window[from++];
} while (--op);
from = _out - dist; /* rest from output */
from_source = output;
}
}
while (len > 2) {
output[_out++] = from_source[from++];
output[_out++] = from_source[from++];
output[_out++] = from_source[from++];
len -= 3;
}
if (len) {
output[_out++] = from_source[from++];
if (len > 1) {
output[_out++] = from_source[from++];
}
}
}
else {
from = _out - dist; /* copy direct from output */
do { /* minimum length is three */
output[_out++] = output[from++];
output[_out++] = output[from++];
output[_out++] = output[from++];
len -= 3;
} while (len > 2);
if (len) {
output[_out++] = output[from++];
if (len > 1) {
output[_out++] = output[from++];
}
}
}
}
else if ((op & 64) === 0) { /* 2nd level distance code */
here = dcode[(here & 0xffff)/*here.val*/ + (hold & ((1 << op) - 1))];
continue dodist;
}
else {
strm.msg = 'invalid distance code';
state.mode = BAD;
break top;
}
break; // need to emulate goto via "continue"
}
}
else if ((op & 64) === 0) { /* 2nd level length code */
here = lcode[(here & 0xffff)/*here.val*/ + (hold & ((1 << op) - 1))];
continue dolen;
}
else if (op & 32) { /* end-of-block */
//Tracevv((stderr, "inflate: end of block\n"));
state.mode = TYPE;
break top;
}
else {
strm.msg = 'invalid literal/length code';
state.mode = BAD;
break top;
}
break; // need to emulate goto via "continue"
}
} while (_in < last && _out < end);
/* return unused bytes (on entry, bits < 8, so in won't go too far back) */
len = bits >> 3;
_in -= len;
bits -= len << 3;
hold &= (1 << bits) - 1;
/* update state and return */
strm.next_in = _in;
strm.next_out = _out;
strm.avail_in = (_in < last ? 5 + (last - _in) : 5 - (_in - last));
strm.avail_out = (_out < end ? 257 + (end - _out) : 257 - (_out - end));
state.hold = hold;
state.bits = bits;
return;
};
}, {}], 48: [function (require, module, exports) {
'use strict';
var utils = require('../utils/common');
var adler32 = require('./adler32');
var crc32 = require('./crc32');
var inflate_fast = require('./inffast');
var inflate_table = require('./inftrees');
var CODES = 0;
var LENS = 1;
var DISTS = 2;
/* Public constants ==========================================================*/
/* ===========================================================================*/
/* Allowed flush values; see deflate() and inflate() below for details */
//var Z_NO_FLUSH = 0;
//var Z_PARTIAL_FLUSH = 1;
//var Z_SYNC_FLUSH = 2;
//var Z_FULL_FLUSH = 3;
var Z_FINISH = 4;
var Z_BLOCK = 5;
var Z_TREES = 6;
/* Return codes for the compression/decompression functions. Negative values
* are errors, positive values are used for special but normal events.
*/
var Z_OK = 0;
var Z_STREAM_END = 1;
var Z_NEED_DICT = 2;
//var Z_ERRNO = -1;
var Z_STREAM_ERROR = -2;
var Z_DATA_ERROR = -3;
var Z_MEM_ERROR = -4;
var Z_BUF_ERROR = -5;
//var Z_VERSION_ERROR = -6;
/* The deflate compression method */
var Z_DEFLATED = 8;
/* STATES ====================================================================*/
/* ===========================================================================*/
var HEAD = 1; /* i: waiting for magic header */
var FLAGS = 2; /* i: waiting for method and flags (gzip) */
var TIME = 3; /* i: waiting for modification time (gzip) */
var OS = 4; /* i: waiting for extra flags and operating system (gzip) */
var EXLEN = 5; /* i: waiting for extra length (gzip) */
var EXTRA = 6; /* i: waiting for extra bytes (gzip) */
var NAME = 7; /* i: waiting for end of file name (gzip) */
var COMMENT = 8; /* i: waiting for end of comment (gzip) */
var HCRC = 9; /* i: waiting for header crc (gzip) */
var DICTID = 10; /* i: waiting for dictionary check value */
var DICT = 11; /* waiting for inflateSetDictionary() call */
var TYPE = 12; /* i: waiting for type bits, including last-flag bit */
var TYPEDO = 13; /* i: same, but skip check to exit inflate on new block */
var STORED = 14; /* i: waiting for stored size (length and complement) */
var COPY_ = 15; /* i/o: same as COPY below, but only first time in */
var COPY = 16; /* i/o: waiting for input or output to copy stored block */
var TABLE = 17; /* i: waiting for dynamic block table lengths */
var LENLENS = 18; /* i: waiting for code length code lengths */
var CODELENS = 19; /* i: waiting for length/lit and distance code lengths */
var LEN_ = 20; /* i: same as LEN below, but only first time in */
var LEN = 21; /* i: waiting for length/lit/eob code */
var LENEXT = 22; /* i: waiting for length extra bits */
var DIST = 23; /* i: waiting for distance code */
var DISTEXT = 24; /* i: waiting for distance extra bits */
var MATCH = 25; /* o: waiting for output space to copy string */
var LIT = 26; /* o: waiting for output space to write literal */
var CHECK = 27; /* i: waiting for 32-bit check value */
var LENGTH = 28; /* i: waiting for 32-bit length (gzip) */
var DONE = 29; /* finished check, done -- remain here until reset */
var BAD = 30; /* got a data error -- remain here until reset */
var MEM = 31; /* got an inflate() memory error -- remain here until reset */
var SYNC = 32; /* looking for synchronization bytes to restart inflate() */
/* ===========================================================================*/
var ENOUGH_LENS = 852;
var ENOUGH_DISTS = 592;
//var ENOUGH = (ENOUGH_LENS+ENOUGH_DISTS);
var MAX_WBITS = 15;
/* 32K LZ77 window */
var DEF_WBITS = MAX_WBITS;
function ZSWAP32(q) {
return (((q >>> 24) & 0xff) +
((q >>> 8) & 0xff00) +
((q & 0xff00) << 8) +
((q & 0xff) << 24));
}
function InflateState() {
this.mode = 0; /* current inflate mode */
this.last = false; /* true if processing last block */
this.wrap = 0; /* bit 0 true for zlib, bit 1 true for gzip */
this.havedict = false; /* true if dictionary provided */
this.flags = 0; /* gzip header method and flags (0 if zlib) */
this.dmax = 0; /* zlib header max distance (INFLATE_STRICT) */
this.check = 0; /* protected copy of check value */
this.total = 0; /* protected copy of output count */
// TODO: may be {}
this.head = null; /* where to save gzip header information */
/* sliding window */
this.wbits = 0; /* log base 2 of requested window size */
this.wsize = 0; /* window size or zero if not using window */
this.whave = 0; /* valid bytes in the window */
this.wnext = 0; /* window write index */
this.window = null; /* allocated sliding window, if needed */
/* bit accumulator */
this.hold = 0; /* input bit accumulator */
this.bits = 0; /* number of bits in "in" */
/* for string and stored block copying */
this.length = 0; /* literal or length of data to copy */
this.offset = 0; /* distance back to copy string from */
/* for table and code decoding */
this.extra = 0; /* extra bits needed */
/* fixed and dynamic code tables */
this.lencode = null; /* starting table for length/literal codes */
this.distcode = null; /* starting table for distance codes */
this.lenbits = 0; /* index bits for lencode */
this.distbits = 0; /* index bits for distcode */
/* dynamic table building */
this.ncode = 0; /* number of code length code lengths */
this.nlen = 0; /* number of length code lengths */
this.ndist = 0; /* number of distance code lengths */
this.have = 0; /* number of code lengths in lens[] */
this.next = null; /* next available space in codes[] */
this.lens = new utils.Buf16(320); /* temporary storage for code lengths */
this.work = new utils.Buf16(288); /* work area for code table building */
/*
because we don't have pointers in js, we use lencode and distcode directly
as buffers so we don't need codes
*/
//this.codes = new utils.Buf32(ENOUGH); /* space for code tables */
this.lendyn = null; /* dynamic table for length/literal codes (JS specific) */
this.distdyn = null; /* dynamic table for distance codes (JS specific) */
this.sane = 0; /* if false, allow invalid distance too far */
this.back = 0; /* bits back of last unprocessed length/lit */
this.was = 0; /* initial length of match */
}
function inflateResetKeep(strm) {
var state;
if (!strm || !strm.state) { return Z_STREAM_ERROR; }
state = strm.state;
strm.total_in = strm.total_out = state.total = 0;
strm.msg = ''; /*Z_NULL*/
if (state.wrap) { /* to support ill-conceived Java test suite */
strm.adler = state.wrap & 1;
}
state.mode = HEAD;
state.last = 0;
state.havedict = 0;
state.dmax = 32768;
state.head = null/*Z_NULL*/;
state.hold = 0;
state.bits = 0;
//state.lencode = state.distcode = state.next = state.codes;
state.lencode = state.lendyn = new utils.Buf32(ENOUGH_LENS);
state.distcode = state.distdyn = new utils.Buf32(ENOUGH_DISTS);
state.sane = 1;
state.back = -1;
//Tracev((stderr, "inflate: reset\n"));
return Z_OK;
}
function inflateReset(strm) {
var state;
if (!strm || !strm.state) { return Z_STREAM_ERROR; }
state = strm.state;
state.wsize = 0;
state.whave = 0;
state.wnext = 0;
return inflateResetKeep(strm);
}
function inflateReset2(strm, windowBits) {
var wrap;
var state;
/* get the state */
if (!strm || !strm.state) { return Z_STREAM_ERROR; }
state = strm.state;
/* extract wrap request from windowBits parameter */
if (windowBits < 0) {
wrap = 0;
windowBits = -windowBits;
}
else {
wrap = (windowBits >> 4) + 1;
if (windowBits < 48) {
windowBits &= 15;
}
}
/* set number of window bits, free window if different */
if (windowBits && (windowBits < 8 || windowBits > 15)) {
return Z_STREAM_ERROR;
}
if (state.window !== null && state.wbits !== windowBits) {
state.window = null;
}
/* update state and reset the rest of it */
state.wrap = wrap;
state.wbits = windowBits;
return inflateReset(strm);
}
function inflateInit2(strm, windowBits) {
var ret;
var state;
if (!strm) { return Z_STREAM_ERROR; }
//strm.msg = Z_NULL; /* in case we return an error */
state = new InflateState();
//if (state === Z_NULL) return Z_MEM_ERROR;
//Tracev((stderr, "inflate: allocated\n"));
strm.state = state;
state.window = null/*Z_NULL*/;
ret = inflateReset2(strm, windowBits);
if (ret !== Z_OK) {
strm.state = null/*Z_NULL*/;
}
return ret;
}
function inflateInit(strm) {
return inflateInit2(strm, DEF_WBITS);
}
/*
Return state with length and distance decoding tables and index sizes set to
fixed code decoding. Normally this returns fixed tables from inffixed.h.
If BUILDFIXED is defined, then instead this routine builds the tables the
first time it's called, and returns those tables the first time and
thereafter. This reduces the size of the code by about 2K bytes, in
exchange for a little execution time. However, BUILDFIXED should not be
used for threaded applications, since the rewriting of the tables and virgin
may not be thread-safe.
*/
var virgin = true;
var lenfix, distfix; // We have no pointers in JS, so keep tables separate
function fixedtables(state) {
/* build fixed huffman tables if first call (may not be thread safe) */
if (virgin) {
var sym;
lenfix = new utils.Buf32(512);
distfix = new utils.Buf32(32);
/* literal/length table */
sym = 0;
while (sym < 144) { state.lens[sym++] = 8; }
while (sym < 256) { state.lens[sym++] = 9; }
while (sym < 280) { state.lens[sym++] = 7; }
while (sym < 288) { state.lens[sym++] = 8; }
inflate_table(LENS, state.lens, 0, 288, lenfix, 0, state.work, { bits: 9 });
/* distance table */
sym = 0;
while (sym < 32) { state.lens[sym++] = 5; }
inflate_table(DISTS, state.lens, 0, 32, distfix, 0, state.work, { bits: 5 });
/* do this just once */
virgin = false;
}
state.lencode = lenfix;
state.lenbits = 9;
state.distcode = distfix;
state.distbits = 5;
}
/*
Update the window with the last wsize (normally 32K) bytes written before
returning. If window does not exist yet, create it. This is only called
when a window is already in use, or when output has been written during this
inflate call, but the end of the deflate stream has not been reached yet.
It is also called to create a window for dictionary data when a dictionary
is loaded.
Providing output buffers larger than 32K to inflate() should provide a speed
advantage, since only the last 32K of output is copied to the sliding window
upon return from inflate(), and since all distances after the first 32K of
output will fall in the output data, making match copies simpler and faster.
The advantage may be dependent on the size of the processor's data caches.
*/
function updatewindow(strm, src, end, copy) {
var dist;
var state = strm.state;
/* if it hasn't been done already, allocate space for the window */
if (state.window === null) {
state.wsize = 1 << state.wbits;
state.wnext = 0;
state.whave = 0;
state.window = new utils.Buf8(state.wsize);
}
/* copy state->wsize or less output bytes into the circular window */
if (copy >= state.wsize) {
utils.arraySet(state.window, src, end - state.wsize, state.wsize, 0);
state.wnext = 0;
state.whave = state.wsize;
}
else {
dist = state.wsize - state.wnext;
if (dist > copy) {
dist = copy;
}
//zmemcpy(state->window + state->wnext, end - copy, dist);
utils.arraySet(state.window, src, end - copy, dist, state.wnext);
copy -= dist;
if (copy) {
//zmemcpy(state->window, end - copy, copy);
utils.arraySet(state.window, src, end - copy, copy, 0);
state.wnext = copy;
state.whave = state.wsize;
}
else {
state.wnext += dist;
if (state.wnext === state.wsize) { state.wnext = 0; }
if (state.whave < state.wsize) { state.whave += dist; }
}
}
return 0;
}
function inflate(strm, flush) {
var state;
var input, output; // input/output buffers
var next; /* next input INDEX */
var put; /* next output INDEX */
var have, left; /* available input and output */
var hold; /* bit buffer */
var bits; /* bits in bit buffer */
var _in, _out; /* save starting available input and output */
var copy; /* number of stored or match bytes to copy */
var from; /* where to copy match bytes from */
var from_source;
var here = 0; /* current decoding table entry */
var here_bits, here_op, here_val; // paked "here" denormalized (JS specific)
//var last; /* parent table entry */
var last_bits, last_op, last_val; // paked "last" denormalized (JS specific)
var len; /* length to copy for repeats, bits to drop */
var ret; /* return code */
var hbuf = new utils.Buf8(4); /* buffer for gzip header crc calculation */
var opts;
var n; // temporary var for NEED_BITS
var order = /* permutation of code lengths */
[16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15];
if (!strm || !strm.state || !strm.output ||
(!strm.input && strm.avail_in !== 0)) {
return Z_STREAM_ERROR;
}
state = strm.state;
if (state.mode === TYPE) { state.mode = TYPEDO; } /* skip check */
//--- LOAD() ---
put = strm.next_out;
output = strm.output;
left = strm.avail_out;
next = strm.next_in;
input = strm.input;
have = strm.avail_in;
hold = state.hold;
bits = state.bits;
//---
_in = have;
_out = left;
ret = Z_OK;
inf_leave: // goto emulation
for (; ; ) {
switch (state.mode) {
case HEAD:
if (state.wrap === 0) {
state.mode = TYPEDO;
break;
}
//=== NEEDBITS(16);
while (bits < 16) {
if (have === 0) { break inf_leave; }
have--;
hold += input[next++] << bits;
bits += 8;
}
//===//
if ((state.wrap & 2) && hold === 0x8b1f) { /* gzip header */
state.check = 0/*crc32(0L, Z_NULL, 0)*/;
//=== CRC2(state.check, hold);
hbuf[0] = hold & 0xff;
hbuf[1] = (hold >>> 8) & 0xff;
state.check = crc32(state.check, hbuf, 2, 0);
//===//
//=== INITBITS();
hold = 0;
bits = 0;
//===//
state.mode = FLAGS;
break;
}
state.flags = 0; /* expect zlib header */
if (state.head) {
state.head.done = false;
}
if (!(state.wrap & 1) || /* check if zlib header allowed */
(((hold & 0xff)/*BITS(8)*/ << 8) + (hold >> 8)) % 31) {
strm.msg = 'incorrect header check';
state.mode = BAD;
break;
}
if ((hold & 0x0f)/*BITS(4)*/ !== Z_DEFLATED) {
strm.msg = 'unknown compression method';
state.mode = BAD;
break;
}
//--- DROPBITS(4) ---//
hold >>>= 4;
bits -= 4;
//---//
len = (hold & 0x0f)/*BITS(4)*/ + 8;
if (state.wbits === 0) {
state.wbits = len;
}
else if (len > state.wbits) {
strm.msg = 'invalid window size';
state.mode = BAD;
break;
}
state.dmax = 1 << len;
//Tracev((stderr, "inflate: zlib header ok\n"));
strm.adler = state.check = 1/*adler32(0L, Z_NULL, 0)*/;
state.mode = hold & 0x200 ? DICTID : TYPE;
//=== INITBITS();
hold = 0;
bits = 0;
//===//
break;
case FLAGS:
//=== NEEDBITS(16); */
while (bits < 16) {
if (have === 0) { break inf_leave; }
have--;
hold += input[next++] << bits;
bits += 8;
}
//===//
state.flags = hold;
if ((state.flags & 0xff) !== Z_DEFLATED) {
strm.msg = 'unknown compression method';
state.mode = BAD;
break;
}
if (state.flags & 0xe000) {
strm.msg = 'unknown header flags set';
state.mode = BAD;
break;
}
if (state.head) {
state.head.text = ((hold >> 8) & 1);
}
if (state.flags & 0x0200) {
//=== CRC2(state.check, hold);
hbuf[0] = hold & 0xff;
hbuf[1] = (hold >>> 8) & 0xff;
state.check = crc32(state.check, hbuf, 2, 0);
//===//
}
//=== INITBITS();
hold = 0;
bits = 0;
//===//
state.mode = TIME;
/* falls through */
case TIME:
//=== NEEDBITS(32); */
while (bits < 32) {
if (have === 0) { break inf_leave; }
have--;
hold += input[next++] << bits;
bits += 8;
}
//===//
if (state.head) {
state.head.time = hold;
}
if (state.flags & 0x0200) {
//=== CRC4(state.check, hold)
hbuf[0] = hold & 0xff;
hbuf[1] = (hold >>> 8) & 0xff;
hbuf[2] = (hold >>> 16) & 0xff;
hbuf[3] = (hold >>> 24) & 0xff;
state.check = crc32(state.check, hbuf, 4, 0);
//===
}
//=== INITBITS();
hold = 0;
bits = 0;
//===//
state.mode = OS;
/* falls through */
case OS:
//=== NEEDBITS(16); */
while (bits < 16) {
if (have === 0) { break inf_leave; }
have--;
hold += input[next++] << bits;
bits += 8;
}
//===//
if (state.head) {
state.head.xflags = (hold & 0xff);
state.head.os = (hold >> 8);
}
if (state.flags & 0x0200) {
//=== CRC2(state.check, hold);
hbuf[0] = hold & 0xff;
hbuf[1] = (hold >>> 8) & 0xff;
state.check = crc32(state.check, hbuf, 2, 0);
//===//
}
//=== INITBITS();
hold = 0;
bits = 0;
//===//
state.mode = EXLEN;
/* falls through */
case EXLEN:
if (state.flags & 0x0400) {
//=== NEEDBITS(16); */
while (bits < 16) {
if (have === 0) { break inf_leave; }
have--;
hold += input[next++] << bits;
bits += 8;
}
//===//
state.length = hold;
if (state.head) {
state.head.extra_len = hold;
}
if (state.flags & 0x0200) {
//=== CRC2(state.check, hold);
hbuf[0] = hold & 0xff;
hbuf[1] = (hold >>> 8) & 0xff;
state.check = crc32(state.check, hbuf, 2, 0);
//===//
}
//=== INITBITS();
hold = 0;
bits = 0;
//===//
}
else if (state.head) {
state.head.extra = null/*Z_NULL*/;
}
state.mode = EXTRA;
/* falls through */
case EXTRA:
if (state.flags & 0x0400) {
copy = state.length;
if (copy > have) { copy = have; }
if (copy) {
if (state.head) {
len = state.head.extra_len - state.length;
if (!state.head.extra) {
// Use untyped array for more conveniend processing later
state.head.extra = new Array(state.head.extra_len);
}
utils.arraySet(
state.head.extra,
input,
next,
// extra field is limited to 65536 bytes
// - no need for additional size check
copy,
/*len + copy > state.head.extra_max - len ? state.head.extra_max : copy,*/
len
);
//zmemcpy(state.head.extra + len, next,
// len + copy > state.head.extra_max ?
// state.head.extra_max - len : copy);
}
if (state.flags & 0x0200) {
state.check = crc32(state.check, input, copy, next);
}
have -= copy;
next += copy;
state.length -= copy;
}
if (state.length) { break inf_leave; }
}
state.length = 0;
state.mode = NAME;
/* falls through */
case NAME:
if (state.flags & 0x0800) {
if (have === 0) { break inf_leave; }
copy = 0;
do {
// TODO: 2 or 1 bytes?
len = input[next + copy++];
/* use constant limit because in js we should not preallocate memory */
if (state.head && len &&
(state.length < 65536 /*state.head.name_max*/)) {
state.head.name += String.fromCharCode(len);
}
} while (len && copy < have);
if (state.flags & 0x0200) {
state.check = crc32(state.check, input, copy, next);
}
have -= copy;
next += copy;
if (len) { break inf_leave; }
}
else if (state.head) {
state.head.name = null;
}
state.length = 0;
state.mode = COMMENT;
/* falls through */
case COMMENT:
if (state.flags & 0x1000) {
if (have === 0) { break inf_leave; }
copy = 0;
do {
len = input[next + copy++];
/* use constant limit because in js we should not preallocate memory */
if (state.head && len &&
(state.length < 65536 /*state.head.comm_max*/)) {
state.head.comment += String.fromCharCode(len);
}
} while (len && copy < have);
if (state.flags & 0x0200) {
state.check = crc32(state.check, input, copy, next);
}
have -= copy;
next += copy;
if (len) { break inf_leave; }
}
else if (state.head) {
state.head.comment = null;
}
state.mode = HCRC;
/* falls through */
case HCRC:
if (state.flags & 0x0200) {
//=== NEEDBITS(16); */
while (bits < 16) {
if (have === 0) { break inf_leave; }
have--;
hold += input[next++] << bits;
bits += 8;
}
//===//
if (hold !== (state.check & 0xffff)) {
strm.msg = 'header crc mismatch';
state.mode = BAD;
break;
}
//=== INITBITS();
hold = 0;
bits = 0;
//===//
}
if (state.head) {
state.head.hcrc = ((state.flags >> 9) & 1);
state.head.done = true;
}
strm.adler = state.check = 0 /*crc32(0L, Z_NULL, 0)*/;
state.mode = TYPE;
break;
case DICTID:
//=== NEEDBITS(32); */
while (bits < 32) {
if (have === 0) { break inf_leave; }
have--;
hold += input[next++] << bits;
bits += 8;
}
//===//
strm.adler = state.check = ZSWAP32(hold);
//=== INITBITS();
hold = 0;
bits = 0;
//===//
state.mode = DICT;
/* falls through */
case DICT:
if (state.havedict === 0) {
//--- RESTORE() ---
strm.next_out = put;
strm.avail_out = left;
strm.next_in = next;
strm.avail_in = have;
state.hold = hold;
state.bits = bits;
//---
return Z_NEED_DICT;
}
strm.adler = state.check = 1/*adler32(0L, Z_NULL, 0)*/;
state.mode = TYPE;
/* falls through */
case TYPE:
if (flush === Z_BLOCK || flush === Z_TREES) { break inf_leave; }
/* falls through */
case TYPEDO:
if (state.last) {
//--- BYTEBITS() ---//
hold >>>= bits & 7;
bits -= bits & 7;
//---//
state.mode = CHECK;
break;
}
//=== NEEDBITS(3); */
while (bits < 3) {
if (have === 0) { break inf_leave; }
have--;
hold += input[next++] << bits;
bits += 8;
}
//===//
state.last = (hold & 0x01)/*BITS(1)*/;
//--- DROPBITS(1) ---//
hold >>>= 1;
bits -= 1;
//---//
switch ((hold & 0x03)/*BITS(2)*/) {
case 0: /* stored block */
//Tracev((stderr, "inflate: stored block%s\n",
// state.last ? " (last)" : ""));
state.mode = STORED;
break;
case 1: /* fixed block */
fixedtables(state);
//Tracev((stderr, "inflate: fixed codes block%s\n",
// state.last ? " (last)" : ""));
state.mode = LEN_; /* decode codes */
if (flush === Z_TREES) {
//--- DROPBITS(2) ---//
hold >>>= 2;
bits -= 2;
//---//
break inf_leave;
}
break;
case 2: /* dynamic block */
//Tracev((stderr, "inflate: dynamic codes block%s\n",
// state.last ? " (last)" : ""));
state.mode = TABLE;
break;
case 3:
strm.msg = 'invalid block type';
state.mode = BAD;
}
//--- DROPBITS(2) ---//
hold >>>= 2;
bits -= 2;
//---//
break;
case STORED:
//--- BYTEBITS() ---// /* go to byte boundary */
hold >>>= bits & 7;
bits -= bits & 7;
//---//
//=== NEEDBITS(32); */
while (bits < 32) {
if (have === 0) { break inf_leave; }
have--;
hold += input[next++] << bits;
bits += 8;
}
//===//
if ((hold & 0xffff) !== ((hold >>> 16) ^ 0xffff)) {
strm.msg = 'invalid stored block lengths';
state.mode = BAD;
break;
}
state.length = hold & 0xffff;
//Tracev((stderr, "inflate: stored length %u\n",
// state.length));
//=== INITBITS();
hold = 0;
bits = 0;
//===//
state.mode = COPY_;
if (flush === Z_TREES) { break inf_leave; }
/* falls through */
case COPY_:
state.mode = COPY;
/* falls through */
case COPY:
copy = state.length;
if (copy) {
if (copy > have) { copy = have; }
if (copy > left) { copy = left; }
if (copy === 0) { break inf_leave; }
//--- zmemcpy(put, next, copy); ---
utils.arraySet(output, input, next, copy, put);
//---//
have -= copy;
next += copy;
left -= copy;
put += copy;
state.length -= copy;
break;
}
//Tracev((stderr, "inflate: stored end\n"));
state.mode = TYPE;
break;
case TABLE:
//=== NEEDBITS(14); */
while (bits < 14) {
if (have === 0) { break inf_leave; }
have--;
hold += input[next++] << bits;
bits += 8;
}
//===//
state.nlen = (hold & 0x1f)/*BITS(5)*/ + 257;
//--- DROPBITS(5) ---//
hold >>>= 5;
bits -= 5;
//---//
state.ndist = (hold & 0x1f)/*BITS(5)*/ + 1;
//--- DROPBITS(5) ---//
hold >>>= 5;
bits -= 5;
//---//
state.ncode = (hold & 0x0f)/*BITS(4)*/ + 4;
//--- DROPBITS(4) ---//
hold >>>= 4;
bits -= 4;
//---//
//#ifndef PKZIP_BUG_WORKAROUND
if (state.nlen > 286 || state.ndist > 30) {
strm.msg = 'too many length or distance symbols';
state.mode = BAD;
break;
}
//#endif
//Tracev((stderr, "inflate: table sizes ok\n"));
state.have = 0;
state.mode = LENLENS;
/* falls through */
case LENLENS:
while (state.have < state.ncode) {
//=== NEEDBITS(3);
while (bits < 3) {
if (have === 0) { break inf_leave; }
have--;
hold += input[next++] << bits;
bits += 8;
}
//===//
state.lens[order[state.have++]] = (hold & 0x07); //BITS(3);
//--- DROPBITS(3) ---//
hold >>>= 3;
bits -= 3;
//---//
}
while (state.have < 19) {
state.lens[order[state.have++]] = 0;
}
// We have separate tables & no pointers. 2 commented lines below not needed.
//state.next = state.codes;
//state.lencode = state.next;
// Switch to use dynamic table
state.lencode = state.lendyn;
state.lenbits = 7;
opts = { bits: state.lenbits };
ret = inflate_table(CODES, state.lens, 0, 19, state.lencode, 0, state.work, opts);
state.lenbits = opts.bits;
if (ret) {
strm.msg = 'invalid code lengths set';
state.mode = BAD;
break;
}
//Tracev((stderr, "inflate: code lengths ok\n"));
state.have = 0;
state.mode = CODELENS;
/* falls through */
case CODELENS:
while (state.have < state.nlen + state.ndist) {
for (; ; ) {
here = state.lencode[hold & ((1 << state.lenbits) - 1)]; /*BITS(state.lenbits)*/
here_bits = here >>> 24;
here_op = (here >>> 16) & 0xff;
here_val = here & 0xffff;
if ((here_bits) <= bits) { break; }
//--- PULLBYTE() ---//
if (have === 0) { break inf_leave; }
have--;
hold += input[next++] << bits;
bits += 8;
//---//
}
if (here_val < 16) {
//--- DROPBITS(here.bits) ---//
hold >>>= here_bits;
bits -= here_bits;
//---//
state.lens[state.have++] = here_val;
}
else {
if (here_val === 16) {
//=== NEEDBITS(here.bits + 2);
n = here_bits + 2;
while (bits < n) {
if (have === 0) { break inf_leave; }
have--;
hold += input[next++] << bits;
bits += 8;
}
//===//
//--- DROPBITS(here.bits) ---//
hold >>>= here_bits;
bits -= here_bits;
//---//
if (state.have === 0) {
strm.msg = 'invalid bit length repeat';
state.mode = BAD;
break;
}
len = state.lens[state.have - 1];
copy = 3 + (hold & 0x03); //BITS(2);
//--- DROPBITS(2) ---//
hold >>>= 2;
bits -= 2;
//---//
}
else if (here_val === 17) {
//=== NEEDBITS(here.bits + 3);
n = here_bits + 3;
while (bits < n) {
if (have === 0) { break inf_leave; }
have--;
hold += input[next++] << bits;
bits += 8;
}
//===//
//--- DROPBITS(here.bits) ---//
hold >>>= here_bits;
bits -= here_bits;
//---//
len = 0;
copy = 3 + (hold & 0x07); //BITS(3);
//--- DROPBITS(3) ---//
hold >>>= 3;
bits -= 3;
//---//
}
else {
//=== NEEDBITS(here.bits + 7);
n = here_bits + 7;
while (bits < n) {
if (have === 0) { break inf_leave; }
have--;
hold += input[next++] << bits;
bits += 8;
}
//===//
//--- DROPBITS(here.bits) ---//
hold >>>= here_bits;
bits -= here_bits;
//---//
len = 0;
copy = 11 + (hold & 0x7f); //BITS(7);
//--- DROPBITS(7) ---//
hold >>>= 7;
bits -= 7;
//---//
}
if (state.have + copy > state.nlen + state.ndist) {
strm.msg = 'invalid bit length repeat';
state.mode = BAD;
break;
}
while (copy--) {
state.lens[state.have++] = len;
}
}
}
/* handle error breaks in while */
if (state.mode === BAD) { break; }
/* check for end-of-block code (better have one) */
if (state.lens[256] === 0) {
strm.msg = 'invalid code -- missing end-of-block';
state.mode = BAD;
break;
}
/* build code tables -- note: do not change the lenbits or distbits
values here (9 and 6) without reading the comments in inftrees.h
concerning the ENOUGH constants, which depend on those values */
state.lenbits = 9;
opts = { bits: state.lenbits };
ret = inflate_table(LENS, state.lens, 0, state.nlen, state.lencode, 0, state.work, opts);
// We have separate tables & no pointers. 2 commented lines below not needed.
// state.next_index = opts.table_index;
state.lenbits = opts.bits;
// state.lencode = state.next;
if (ret) {
strm.msg = 'invalid literal/lengths set';
state.mode = BAD;
break;
}
state.distbits = 6;
//state.distcode.copy(state.codes);
// Switch to use dynamic table
state.distcode = state.distdyn;
opts = { bits: state.distbits };
ret = inflate_table(DISTS, state.lens, state.nlen, state.ndist, state.distcode, 0, state.work, opts);
// We have separate tables & no pointers. 2 commented lines below not needed.
// state.next_index = opts.table_index;
state.distbits = opts.bits;
// state.distcode = state.next;
if (ret) {
strm.msg = 'invalid distances set';
state.mode = BAD;
break;
}
//Tracev((stderr, 'inflate: codes ok\n'));
state.mode = LEN_;
if (flush === Z_TREES) { break inf_leave; }
/* falls through */
case LEN_:
state.mode = LEN;
/* falls through */
case LEN:
if (have >= 6 && left >= 258) {
//--- RESTORE() ---
strm.next_out = put;
strm.avail_out = left;
strm.next_in = next;
strm.avail_in = have;
state.hold = hold;
state.bits = bits;
//---
inflate_fast(strm, _out);
//--- LOAD() ---
put = strm.next_out;
output = strm.output;
left = strm.avail_out;
next = strm.next_in;
input = strm.input;
have = strm.avail_in;
hold = state.hold;
bits = state.bits;
//---
if (state.mode === TYPE) {
state.back = -1;
}
break;
}
state.back = 0;
for (; ; ) {
here = state.lencode[hold & ((1 << state.lenbits) - 1)]; /*BITS(state.lenbits)*/
here_bits = here >>> 24;
here_op = (here >>> 16) & 0xff;
here_val = here & 0xffff;
if (here_bits <= bits) { break; }
//--- PULLBYTE() ---//
if (have === 0) { break inf_leave; }
have--;
hold += input[next++] << bits;
bits += 8;
//---//
}
if (here_op && (here_op & 0xf0) === 0) {
last_bits = here_bits;
last_op = here_op;
last_val = here_val;
for (; ; ) {
here = state.lencode[last_val +
((hold & ((1 << (last_bits + last_op)) - 1))/*BITS(last.bits + last.op)*/ >> last_bits)];
here_bits = here >>> 24;
here_op = (here >>> 16) & 0xff;
here_val = here & 0xffff;
if ((last_bits + here_bits) <= bits) { break; }
//--- PULLBYTE() ---//
if (have === 0) { break inf_leave; }
have--;
hold += input[next++] << bits;
bits += 8;
//---//
}
//--- DROPBITS(last.bits) ---//
hold >>>= last_bits;
bits -= last_bits;
//---//
state.back += last_bits;
}
//--- DROPBITS(here.bits) ---//
hold >>>= here_bits;
bits -= here_bits;
//---//
state.back += here_bits;
state.length = here_val;
if (here_op === 0) {
//Tracevv((stderr, here.val >= 0x20 && here.val < 0x7f ?
// "inflate: literal '%c'\n" :
// "inflate: literal 0x%02x\n", here.val));
state.mode = LIT;
break;
}
if (here_op & 32) {
//Tracevv((stderr, "inflate: end of block\n"));
state.back = -1;
state.mode = TYPE;
break;
}
if (here_op & 64) {
strm.msg = 'invalid literal/length code';
state.mode = BAD;
break;
}
state.extra = here_op & 15;
state.mode = LENEXT;
/* falls through */
case LENEXT:
if (state.extra) {
//=== NEEDBITS(state.extra);
n = state.extra;
while (bits < n) {
if (have === 0) { break inf_leave; }
have--;
hold += input[next++] << bits;
bits += 8;
}
//===//
state.length += hold & ((1 << state.extra) - 1)/*BITS(state.extra)*/;
//--- DROPBITS(state.extra) ---//
hold >>>= state.extra;
bits -= state.extra;
//---//
state.back += state.extra;
}
//Tracevv((stderr, "inflate: length %u\n", state.length));
state.was = state.length;
state.mode = DIST;
/* falls through */
case DIST:
for (; ; ) {
here = state.distcode[hold & ((1 << state.distbits) - 1)]; /*BITS(state.distbits)*/
here_bits = here >>> 24;
here_op = (here >>> 16) & 0xff;
here_val = here & 0xffff;
if ((here_bits) <= bits) { break; }
//--- PULLBYTE() ---//
if (have === 0) { break inf_leave; }
have--;
hold += input[next++] << bits;
bits += 8;
//---//
}
if ((here_op & 0xf0) === 0) {
last_bits = here_bits;
last_op = here_op;
last_val = here_val;
for (; ; ) {
here = state.distcode[last_val +
((hold & ((1 << (last_bits + last_op)) - 1))/*BITS(last.bits + last.op)*/ >> last_bits)];
here_bits = here >>> 24;
here_op = (here >>> 16) & 0xff;
here_val = here & 0xffff;
if ((last_bits + here_bits) <= bits) { break; }
//--- PULLBYTE() ---//
if (have === 0) { break inf_leave; }
have--;
hold += input[next++] << bits;
bits += 8;
//---//
}
//--- DROPBITS(last.bits) ---//
hold >>>= last_bits;
bits -= last_bits;
//---//
state.back += last_bits;
}
//--- DROPBITS(here.bits) ---//
hold >>>= here_bits;
bits -= here_bits;
//---//
state.back += here_bits;
if (here_op & 64) {
strm.msg = 'invalid distance code';
state.mode = BAD;
break;
}
state.offset = here_val;
state.extra = (here_op) & 15;
state.mode = DISTEXT;
/* falls through */
case DISTEXT:
if (state.extra) {
//=== NEEDBITS(state.extra);
n = state.extra;
while (bits < n) {
if (have === 0) { break inf_leave; }
have--;
hold += input[next++] << bits;
bits += 8;
}
//===//
state.offset += hold & ((1 << state.extra) - 1)/*BITS(state.extra)*/;
//--- DROPBITS(state.extra) ---//
hold >>>= state.extra;
bits -= state.extra;
//---//
state.back += state.extra;
}
//#ifdef INFLATE_STRICT
if (state.offset > state.dmax) {
strm.msg = 'invalid distance too far back';
state.mode = BAD;
break;
}
//#endif
//Tracevv((stderr, "inflate: distance %u\n", state.offset));
state.mode = MATCH;
/* falls through */
case MATCH:
if (left === 0) { break inf_leave; }
copy = _out - left;
if (state.offset > copy) { /* copy from window */
copy = state.offset - copy;
if (copy > state.whave) {
if (state.sane) {
strm.msg = 'invalid distance too far back';
state.mode = BAD;
break;
}
// (!) This block is disabled in zlib defailts,
// don't enable it for binary compatibility
//#ifdef INFLATE_ALLOW_INVALID_DISTANCE_TOOFAR_ARRR
// Trace((stderr, "inflate.c too far\n"));
// copy -= state.whave;
// if (copy > state.length) { copy = state.length; }
// if (copy > left) { copy = left; }
// left -= copy;
// state.length -= copy;
// do {
// output[put++] = 0;
// } while (--copy);
// if (state.length === 0) { state.mode = LEN; }
// break;
//#endif
}
if (copy > state.wnext) {
copy -= state.wnext;
from = state.wsize - copy;
}
else {
from = state.wnext - copy;
}
if (copy > state.length) { copy = state.length; }
from_source = state.window;
}
else { /* copy from output */
from_source = output;
from = put - state.offset;
copy = state.length;
}
if (copy > left) { copy = left; }
left -= copy;
state.length -= copy;
do {
output[put++] = from_source[from++];
} while (--copy);
if (state.length === 0) { state.mode = LEN; }
break;
case LIT:
if (left === 0) { break inf_leave; }
output[put++] = state.length;
left--;
state.mode = LEN;
break;
case CHECK:
if (state.wrap) {
//=== NEEDBITS(32);
while (bits < 32) {
if (have === 0) { break inf_leave; }
have--;
// Use '|' insdead of '+' to make sure that result is signed
hold |= input[next++] << bits;
bits += 8;
}
//===//
_out -= left;
strm.total_out += _out;
state.total += _out;
if (_out) {
strm.adler = state.check =
/*UPDATE(state.check, put - _out, _out);*/
(state.flags ? crc32(state.check, output, _out, put - _out) : adler32(state.check, output, _out, put - _out));
}
_out = left;
// NB: crc32 stored as signed 32-bit int, ZSWAP32 returns signed too
if ((state.flags ? hold : ZSWAP32(hold)) !== state.check) {
strm.msg = 'incorrect data check';
state.mode = BAD;
break;
}
//=== INITBITS();
hold = 0;
bits = 0;
//===//
//Tracev((stderr, "inflate: check matches trailer\n"));
}
state.mode = LENGTH;
/* falls through */
case LENGTH:
if (state.wrap && state.flags) {
//=== NEEDBITS(32);
while (bits < 32) {
if (have === 0) { break inf_leave; }
have--;
hold += input[next++] << bits;
bits += 8;
}
//===//
if (hold !== (state.total & 0xffffffff)) {
strm.msg = 'incorrect length check';
state.mode = BAD;
break;
}
//=== INITBITS();
hold = 0;
bits = 0;
//===//
//Tracev((stderr, "inflate: length matches trailer\n"));
}
state.mode = DONE;
/* falls through */
case DONE:
ret = Z_STREAM_END;
break inf_leave;
case BAD:
ret = Z_DATA_ERROR;
break inf_leave;
case MEM:
return Z_MEM_ERROR;
case SYNC:
/* falls through */
default:
return Z_STREAM_ERROR;
}
}
// inf_leave <- here is real place for "goto inf_leave", emulated via "break inf_leave"
/*
Return from inflate(), updating the total counts and the check value.
If there was no progress during the inflate() call, return a buffer
error. Call updatewindow() to create and/or update the window state.
Note: a memory error from inflate() is non-recoverable.
*/
//--- RESTORE() ---
strm.next_out = put;
strm.avail_out = left;
strm.next_in = next;
strm.avail_in = have;
state.hold = hold;
state.bits = bits;
//---
if (state.wsize || (_out !== strm.avail_out && state.mode < BAD &&
(state.mode < CHECK || flush !== Z_FINISH))) {
if (updatewindow(strm, strm.output, strm.next_out, _out - strm.avail_out)) {
state.mode = MEM;
return Z_MEM_ERROR;
}
}
_in -= strm.avail_in;
_out -= strm.avail_out;
strm.total_in += _in;
strm.total_out += _out;
state.total += _out;
if (state.wrap && _out) {
strm.adler = state.check = /*UPDATE(state.check, strm.next_out - _out, _out);*/
(state.flags ? crc32(state.check, output, _out, strm.next_out - _out) : adler32(state.check, output, _out, strm.next_out - _out));
}
strm.data_type = state.bits + (state.last ? 64 : 0) +
(state.mode === TYPE ? 128 : 0) +
(state.mode === LEN_ || state.mode === COPY_ ? 256 : 0);
if (((_in === 0 && _out === 0) || flush === Z_FINISH) && ret === Z_OK) {
ret = Z_BUF_ERROR;
}
return ret;
}
function inflateEnd(strm) {
if (!strm || !strm.state /*|| strm->zfree == (free_func)0*/) {
return Z_STREAM_ERROR;
}
var state = strm.state;
if (state.window) {
state.window = null;
}
strm.state = null;
return Z_OK;
}
function inflateGetHeader(strm, head) {
var state;
/* check state */
if (!strm || !strm.state) { return Z_STREAM_ERROR; }
state = strm.state;
if ((state.wrap & 2) === 0) { return Z_STREAM_ERROR; }
/* save header structure */
state.head = head;
head.done = false;
return Z_OK;
}
exports.inflateReset = inflateReset;
exports.inflateReset2 = inflateReset2;
exports.inflateResetKeep = inflateResetKeep;
exports.inflateInit = inflateInit;
exports.inflateInit2 = inflateInit2;
exports.inflate = inflate;
exports.inflateEnd = inflateEnd;
exports.inflateGetHeader = inflateGetHeader;
exports.inflateInfo = 'pako inflate (from Nodeca project)';
/* Not implemented
exports.inflateCopy = inflateCopy;
exports.inflateGetDictionary = inflateGetDictionary;
exports.inflateMark = inflateMark;
exports.inflatePrime = inflatePrime;
exports.inflateSetDictionary = inflateSetDictionary;
exports.inflateSync = inflateSync;
exports.inflateSyncPoint = inflateSyncPoint;
exports.inflateUndermine = inflateUndermine;
*/
}, { "../utils/common": 40, "./adler32": 42, "./crc32": 44, "./inffast": 47, "./inftrees": 49}], 49: [function (require, module, exports) {
'use strict';
var utils = require('../utils/common');
var MAXBITS = 15;
var ENOUGH_LENS = 852;
var ENOUGH_DISTS = 592;
//var ENOUGH = (ENOUGH_LENS+ENOUGH_DISTS);
var CODES = 0;
var LENS = 1;
var DISTS = 2;
var lbase = [ /* Length codes 257..285 base */
3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31,
35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258, 0, 0
];
var lext = [ /* Length codes 257..285 extra */
16, 16, 16, 16, 16, 16, 16, 16, 17, 17, 17, 17, 18, 18, 18, 18,
19, 19, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 16, 72, 78
];
var dbase = [ /* Distance codes 0..29 base */
1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193,
257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145,
8193, 12289, 16385, 24577, 0, 0
];
var dext = [ /* Distance codes 0..29 extra */
16, 16, 16, 16, 17, 17, 18, 18, 19, 19, 20, 20, 21, 21, 22, 22,
23, 23, 24, 24, 25, 25, 26, 26, 27, 27,
28, 28, 29, 29, 64, 64
];
module.exports = function inflate_table(type, lens, lens_index, codes, table, table_index, work, opts) {
var bits = opts.bits;
//here = opts.here; /* table entry for duplication */
var len = 0; /* a code's length in bits */
var sym = 0; /* index of code symbols */
var min = 0, max = 0; /* minimum and maximum code lengths */
var root = 0; /* number of index bits for root table */
var curr = 0; /* number of index bits for current table */
var drop = 0; /* code bits to drop for sub-table */
var left = 0; /* number of prefix codes available */
var used = 0; /* code entries in table used */
var huff = 0; /* Huffman code */
var incr; /* for incrementing code, index */
var fill; /* index for replicating entries */
var low; /* low bits for current root entry */
var mask; /* mask for low root bits */
var next; /* next available space in table */
var base = null; /* base value table to use */
var base_index = 0;
// var shoextra; /* extra bits table to use */
var end; /* use base and extra for symbol > end */
var count = new utils.Buf16(MAXBITS + 1); //[MAXBITS+1]; /* number of codes of each length */
var offs = new utils.Buf16(MAXBITS + 1); //[MAXBITS+1]; /* offsets in table for each length */
var extra = null;
var extra_index = 0;
var here_bits, here_op, here_val;
/*
Process a set of code lengths to create a canonical Huffman code. The
code lengths are lens[0..codes-1]. Each length corresponds to the
symbols 0..codes-1. The Huffman code is generated by first sorting the
symbols by length from short to long, and retaining the symbol order
for codes with equal lengths. Then the code starts with all zero bits
for the first code of the shortest length, and the codes are integer
increments for the same length, and zeros are appended as the length
increases. For the deflate format, these bits are stored backwards
from their more natural integer increment ordering, and so when the
decoding tables are built in the large loop below, the integer codes
are incremented backwards.
This routine assumes, but does not check, that all of the entries in
lens[] are in the range 0..MAXBITS. The caller must assure this.
1..MAXBITS is interpreted as that code length. zero means that that
symbol does not occur in this code.
The codes are sorted by computing a count of codes for each length,
creating from that a table of starting indices for each length in the
sorted table, and then entering the symbols in order in the sorted
table. The sorted table is work[], with that space being provided by
the caller.
The length counts are used for other purposes as well, i.e. finding
the minimum and maximum length codes, determining if there are any
codes at all, checking for a valid set of lengths, and looking ahead
at length counts to determine sub-table sizes when building the
decoding tables.
*/
/* accumulate lengths for codes (assumes lens[] all in 0..MAXBITS) */
for (len = 0; len <= MAXBITS; len++) {
count[len] = 0;
}
for (sym = 0; sym < codes; sym++) {
count[lens[lens_index + sym]]++;
}
/* bound code lengths, force root to be within code lengths */
root = bits;
for (max = MAXBITS; max >= 1; max--) {
if (count[max] !== 0) { break; }
}
if (root > max) {
root = max;
}
if (max === 0) { /* no symbols to code at all */
//table.op[opts.table_index] = 64; //here.op = (var char)64; /* invalid code marker */
//table.bits[opts.table_index] = 1; //here.bits = (var char)1;
//table.val[opts.table_index++] = 0; //here.val = (var short)0;
table[table_index++] = (1 << 24) | (64 << 16) | 0;
//table.op[opts.table_index] = 64;
//table.bits[opts.table_index] = 1;
//table.val[opts.table_index++] = 0;
table[table_index++] = (1 << 24) | (64 << 16) | 0;
opts.bits = 1;
return 0; /* no symbols, but wait for decoding to report error */
}
for (min = 1; min < max; min++) {
if (count[min] !== 0) { break; }
}
if (root < min) {
root = min;
}
/* check for an over-subscribed or incomplete set of lengths */
left = 1;
for (len = 1; len <= MAXBITS; len++) {
left <<= 1;
left -= count[len];
if (left < 0) {
return -1;
} /* over-subscribed */
}
if (left > 0 && (type === CODES || max !== 1)) {
return -1; /* incomplete set */
}
/* generate offsets into symbol table for each length for sorting */
offs[1] = 0;
for (len = 1; len < MAXBITS; len++) {
offs[len + 1] = offs[len] + count[len];
}
/* sort symbols by length, by symbol order within each length */
for (sym = 0; sym < codes; sym++) {
if (lens[lens_index + sym] !== 0) {
work[offs[lens[lens_index + sym]]++] = sym;
}
}
/*
Create and fill in decoding tables. In this loop, the table being
filled is at next and has curr index bits. The code being used is huff
with length len. That code is converted to an index by dropping drop
bits off of the bottom. For codes where len is less than drop + curr,
those top drop + curr - len bits are incremented through all values to
fill the table with replicated entries.
root is the number of index bits for the root table. When len exceeds
root, sub-tables are created pointed to by the root entry with an index
of the low root bits of huff. This is saved in low to check for when a
new sub-table should be started. drop is zero when the root table is
being filled, and drop is root when sub-tables are being filled.
When a new sub-table is needed, it is necessary to look ahead in the
code lengths to determine what size sub-table is needed. The length
counts are used for this, and so count[] is decremented as codes are
entered in the tables.
used keeps track of how many table entries have been allocated from the
provided *table space. It is checked for LENS and DIST tables against
the constants ENOUGH_LENS and ENOUGH_DISTS to guard against changes in
the initial root table size constants. See the comments in inftrees.h
for more information.
sym increments through all symbols, and the loop terminates when
all codes of length max, i.e. all codes, have been processed. This
routine permits incomplete codes, so another loop after this one fills
in the rest of the decoding tables with invalid code markers.
*/
/* set up for code type */
// poor man optimization - use if-else instead of switch,
// to avoid deopts in old v8
if (type === CODES) {
base = extra = work; /* dummy value--not used */
end = 19;
} else if (type === LENS) {
base = lbase;
base_index -= 257;
extra = lext;
extra_index -= 257;
end = 256;
} else { /* DISTS */
base = dbase;
extra = dext;
end = -1;
}
/* initialize opts for loop */
huff = 0; /* starting code */
sym = 0; /* starting code symbol */
len = min; /* starting code length */
next = table_index; /* current table to fill in */
curr = root; /* current table index bits */
drop = 0; /* current bits to drop from code for index */
low = -1; /* trigger new sub-table when len > root */
used = 1 << root; /* use root table entries */
mask = used - 1; /* mask for comparing low */
/* check available table space */
if ((type === LENS && used > ENOUGH_LENS) ||
(type === DISTS && used > ENOUGH_DISTS)) {
return 1;
}
var i = 0;
/* process all codes and make table entries */
for (; ; ) {
i++;
/* create table entry */
here_bits = len - drop;
if (work[sym] < end) {
here_op = 0;
here_val = work[sym];
}
else if (work[sym] > end) {
here_op = extra[extra_index + work[sym]];
here_val = base[base_index + work[sym]];
}
else {
here_op = 32 + 64; /* end of block */
here_val = 0;
}
/* replicate for those indices with low len bits equal to huff */
incr = 1 << (len - drop);
fill = 1 << curr;
min = fill; /* save offset to next table */
do {
fill -= incr;
table[next + (huff >> drop) + fill] = (here_bits << 24) | (here_op << 16) | here_val | 0;
} while (fill !== 0);
/* backwards increment the len-bit code huff */
incr = 1 << (len - 1);
while (huff & incr) {
incr >>= 1;
}
if (incr !== 0) {
huff &= incr - 1;
huff += incr;
} else {
huff = 0;
}
/* go to next symbol, update count, len */
sym++;
if (--count[len] === 0) {
if (len === max) { break; }
len = lens[lens_index + work[sym]];
}
/* create new sub-table if needed */
if (len > root && (huff & mask) !== low) {
/* if first time, transition to sub-tables */
if (drop === 0) {
drop = root;
}
/* increment past last table */
next += min; /* here min is 1 << curr */
/* determine length of next table */
curr = len - drop;
left = 1 << curr;
while (curr + drop < max) {
left -= count[curr + drop];
if (left <= 0) { break; }
curr++;
left <<= 1;
}
/* check for enough space */
used += 1 << curr;
if ((type === LENS && used > ENOUGH_LENS) ||
(type === DISTS && used > ENOUGH_DISTS)) {
return 1;
}
/* point entry in root table to sub-table */
low = huff & mask;
/*table.op[low] = curr;
table.bits[low] = root;
table.val[low] = next - opts.table_index;*/
table[low] = (root << 24) | (curr << 16) | (next - table_index) | 0;
}
}
/* fill in remaining table entry if code is incomplete (guaranteed to have
at most one remaining entry, since if the code is incomplete, the
maximum code length that was allowed to get this far is one bit) */
if (huff !== 0) {
//table.op[next + huff] = 64; /* invalid code marker */
//table.bits[next + huff] = len - drop;
//table.val[next + huff] = 0;
table[next + huff] = ((len - drop) << 24) | (64 << 16) | 0;
}
/* set return parameters */
//opts.table_index += used;
opts.bits = root;
return 0;
};
}, { "../utils/common": 40}], 50: [function (require, module, exports) {
'use strict';
module.exports = {
'2': 'need dictionary', /* Z_NEED_DICT 2 */
'1': 'stream end', /* Z_STREAM_END 1 */
'0': '', /* Z_OK 0 */
'-1': 'file error', /* Z_ERRNO (-1) */
'-2': 'stream error', /* Z_STREAM_ERROR (-2) */
'-3': 'data error', /* Z_DATA_ERROR (-3) */
'-4': 'insufficient memory', /* Z_MEM_ERROR (-4) */
'-5': 'buffer error', /* Z_BUF_ERROR (-5) */
'-6': 'incompatible version' /* Z_VERSION_ERROR (-6) */
};
}, {}], 51: [function (require, module, exports) {
'use strict';
var utils = require('../utils/common');
/* Public constants ==========================================================*/
/* ===========================================================================*/
//var Z_FILTERED = 1;
//var Z_HUFFMAN_ONLY = 2;
//var Z_RLE = 3;
var Z_FIXED = 4;
//var Z_DEFAULT_STRATEGY = 0;
/* Possible values of the data_type field (though see inflate()) */
var Z_BINARY = 0;
var Z_TEXT = 1;
//var Z_ASCII = 1; // = Z_TEXT
var Z_UNKNOWN = 2;
/*============================================================================*/
function zero(buf) { var len = buf.length; while (--len >= 0) { buf[len] = 0; } }
// From zutil.h
var STORED_BLOCK = 0;
var STATIC_TREES = 1;
var DYN_TREES = 2;
/* The three kinds of block type */
var MIN_MATCH = 3;
var MAX_MATCH = 258;
/* The minimum and maximum match lengths */
// From deflate.h
/* ===========================================================================
* Internal compression state.
*/
var LENGTH_CODES = 29;
/* number of length codes, not counting the special END_BLOCK code */
var LITERALS = 256;
/* number of literal bytes 0..255 */
var L_CODES = LITERALS + 1 + LENGTH_CODES;
/* number of Literal or Length codes, including the END_BLOCK code */
var D_CODES = 30;
/* number of distance codes */
var BL_CODES = 19;
/* number of codes used to transfer the bit lengths */
var HEAP_SIZE = 2 * L_CODES + 1;
/* maximum heap size */
var MAX_BITS = 15;
/* All codes must not exceed MAX_BITS bits */
var Buf_size = 16;
/* size of bit buffer in bi_buf */
/* ===========================================================================
* Constants
*/
var MAX_BL_BITS = 7;
/* Bit length codes must not exceed MAX_BL_BITS bits */
var END_BLOCK = 256;
/* end of block literal code */
var REP_3_6 = 16;
/* repeat previous bit length 3-6 times (2 bits of repeat count) */
var REPZ_3_10 = 17;
/* repeat a zero length 3-10 times (3 bits of repeat count) */
var REPZ_11_138 = 18;
/* repeat a zero length 11-138 times (7 bits of repeat count) */
var extra_lbits = /* extra bits for each length code */
[0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0];
var extra_dbits = /* extra bits for each distance code */
[0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13];
var extra_blbits = /* extra bits for each bit length code */
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 3, 7];
var bl_order =
[16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15];
/* The lengths of the bit length codes are sent in order of decreasing
* probability, to avoid transmitting the lengths for unused bit length codes.
*/
/* ===========================================================================
* Local data. These are initialized only once.
*/
// We pre-fill arrays with 0 to avoid uninitialized gaps
var DIST_CODE_LEN = 512; /* see definition of array dist_code below */
// !!!! Use flat array insdead of structure, Freq = i*2, Len = i*2+1
var static_ltree = new Array((L_CODES + 2) * 2);
zero(static_ltree);
/* The static literal tree. Since the bit lengths are imposed, there is no
* need for the L_CODES extra codes used during heap construction. However
* The codes 286 and 287 are needed to build a canonical tree (see _tr_init
* below).
*/
var static_dtree = new Array(D_CODES * 2);
zero(static_dtree);
/* The static distance tree. (Actually a trivial tree since all codes use
* 5 bits.)
*/
var _dist_code = new Array(DIST_CODE_LEN);
zero(_dist_code);
/* Distance codes. The first 256 values correspond to the distances
* 3 .. 258, the last 256 values correspond to the top 8 bits of
* the 15 bit distances.
*/
var _length_code = new Array(MAX_MATCH - MIN_MATCH + 1);
zero(_length_code);
/* length code for each normalized match length (0 == MIN_MATCH) */
var base_length = new Array(LENGTH_CODES);
zero(base_length);
/* First normalized length for each code (0 = MIN_MATCH) */
var base_dist = new Array(D_CODES);
zero(base_dist);
/* First normalized distance for each code (0 = distance of 1) */
var StaticTreeDesc = function (static_tree, extra_bits, extra_base, elems, max_length) {
this.static_tree = static_tree; /* static tree or NULL */
this.extra_bits = extra_bits; /* extra bits for each code or NULL */
this.extra_base = extra_base; /* base index for extra_bits */
this.elems = elems; /* max number of elements in the tree */
this.max_length = max_length; /* max bit length for the codes */
// show if `static_tree` has data or dummy - needed for monomorphic objects
this.has_stree = static_tree && static_tree.length;
};
var static_l_desc;
var static_d_desc;
var static_bl_desc;
var TreeDesc = function (dyn_tree, stat_desc) {
this.dyn_tree = dyn_tree; /* the dynamic tree */
this.max_code = 0; /* largest code with non zero frequency */
this.stat_desc = stat_desc; /* the corresponding static tree */
};
function d_code(dist) {
return dist < 256 ? _dist_code[dist] : _dist_code[256 + (dist >>> 7)];
}
/* ===========================================================================
* Output a short LSB first on the stream.
* IN assertion: there is enough room in pendingBuf.
*/
function put_short(s, w) {
// put_byte(s, (uch)((w) & 0xff));
// put_byte(s, (uch)((ush)(w) >> 8));
s.pending_buf[s.pending++] = (w) & 0xff;
s.pending_buf[s.pending++] = (w >>> 8) & 0xff;
}
/* ===========================================================================
* Send a value on a given number of bits.
* IN assertion: length <= 16 and value fits in length bits.
*/
function send_bits(s, value, length) {
if (s.bi_valid > (Buf_size - length)) {
s.bi_buf |= (value << s.bi_valid) & 0xffff;
put_short(s, s.bi_buf);
s.bi_buf = value >> (Buf_size - s.bi_valid);
s.bi_valid += length - Buf_size;
} else {
s.bi_buf |= (value << s.bi_valid) & 0xffff;
s.bi_valid += length;
}
}
function send_code(s, c, tree) {
send_bits(s, tree[c * 2]/*.Code*/, tree[c * 2 + 1]/*.Len*/);
}
/* ===========================================================================
* Reverse the first len bits of a code, using straightforward code (a faster
* method would use a table)
* IN assertion: 1 <= len <= 15
*/
function bi_reverse(code, len) {
var res = 0;
do {
res |= code & 1;
code >>>= 1;
res <<= 1;
} while (--len > 0);
return res >>> 1;
}
/* ===========================================================================
* Flush the bit buffer, keeping at most 7 bits in it.
*/
function bi_flush(s) {
if (s.bi_valid === 16) {
put_short(s, s.bi_buf);
s.bi_buf = 0;
s.bi_valid = 0;
} else if (s.bi_valid >= 8) {
s.pending_buf[s.pending++] = s.bi_buf & 0xff;
s.bi_buf >>= 8;
s.bi_valid -= 8;
}
}
/* ===========================================================================
* Compute the optimal bit lengths for a tree and update the total bit length
* for the current block.
* IN assertion: the fields freq and dad are set, heap[heap_max] and
* above are the tree nodes sorted by increasing frequency.
* OUT assertions: the field len is set to the optimal bit length, the
* array bl_count contains the frequencies for each bit length.
* The length opt_len is updated; static_len is also updated if stree is
* not null.
*/
function gen_bitlen(s, desc)
// deflate_state *s;
// tree_desc *desc; /* the tree descriptor */
{
var tree = desc.dyn_tree;
var max_code = desc.max_code;
var stree = desc.stat_desc.static_tree;
var has_stree = desc.stat_desc.has_stree;
var extra = desc.stat_desc.extra_bits;
var base = desc.stat_desc.extra_base;
var max_length = desc.stat_desc.max_length;
var h; /* heap index */
var n, m; /* iterate over the tree elements */
var bits; /* bit length */
var xbits; /* extra bits */
var f; /* frequency */
var overflow = 0; /* number of elements with bit length too large */
for (bits = 0; bits <= MAX_BITS; bits++) {
s.bl_count[bits] = 0;
}
/* In a first pass, compute the optimal bit lengths (which may
* overflow in the case of the bit length tree).
*/
tree[s.heap[s.heap_max] * 2 + 1]/*.Len*/ = 0; /* root of the heap */
for (h = s.heap_max + 1; h < HEAP_SIZE; h++) {
n = s.heap[h];
bits = tree[tree[n * 2 + 1]/*.Dad*/ * 2 + 1]/*.Len*/ + 1;
if (bits > max_length) {
bits = max_length;
overflow++;
}
tree[n * 2 + 1]/*.Len*/ = bits;
/* We overwrite tree[n].Dad which is no longer needed */
if (n > max_code) { continue; } /* not a leaf node */
s.bl_count[bits]++;
xbits = 0;
if (n >= base) {
xbits = extra[n - base];
}
f = tree[n * 2]/*.Freq*/;
s.opt_len += f * (bits + xbits);
if (has_stree) {
s.static_len += f * (stree[n * 2 + 1]/*.Len*/ + xbits);
}
}
if (overflow === 0) { return; }
// Trace((stderr,"\nbit length overflow\n"));
/* This happens for example on obj2 and pic of the Calgary corpus */
/* Find the first bit length which could increase: */
do {
bits = max_length - 1;
while (s.bl_count[bits] === 0) { bits--; }
s.bl_count[bits]--; /* move one leaf down the tree */
s.bl_count[bits + 1] += 2; /* move one overflow item as its brother */
s.bl_count[max_length]--;
/* The brother of the overflow item also moves one step up,
* but this does not affect bl_count[max_length]
*/
overflow -= 2;
} while (overflow > 0);
/* Now recompute all bit lengths, scanning in increasing frequency.
* h is still equal to HEAP_SIZE. (It is simpler to reconstruct all
* lengths instead of fixing only the wrong ones. This idea is taken
* from 'ar' written by Haruhiko Okumura.)
*/
for (bits = max_length; bits !== 0; bits--) {
n = s.bl_count[bits];
while (n !== 0) {
m = s.heap[--h];
if (m > max_code) { continue; }
if (tree[m * 2 + 1]/*.Len*/ !== bits) {
// Trace((stderr,"code %d bits %d->%d\n", m, tree[m].Len, bits));
s.opt_len += (bits - tree[m * 2 + 1]/*.Len*/) * tree[m * 2]/*.Freq*/;
tree[m * 2 + 1]/*.Len*/ = bits;
}
n--;
}
}
}
/* ===========================================================================
* Generate the codes for a given tree and bit counts (which need not be
* optimal).
* IN assertion: the array bl_count contains the bit length statistics for
* the given tree and the field len is set for all tree elements.
* OUT assertion: the field code is set for all tree elements of non
* zero code length.
*/
function gen_codes(tree, max_code, bl_count)
// ct_data *tree; /* the tree to decorate */
// int max_code; /* largest code with non zero frequency */
// ushf *bl_count; /* number of codes at each bit length */
{
var next_code = new Array(MAX_BITS + 1); /* next code value for each bit length */
var code = 0; /* running code value */
var bits; /* bit index */
var n; /* code index */
/* The distribution counts are first used to generate the code values
* without bit reversal.
*/
for (bits = 1; bits <= MAX_BITS; bits++) {
next_code[bits] = code = (code + bl_count[bits - 1]) << 1;
}
/* Check that the bit counts in bl_count are consistent. The last code
* must be all ones.
*/
//Assert (code + bl_count[MAX_BITS]-1 == (1<<MAX_BITS)-1,
// "inconsistent bit counts");
//Tracev((stderr,"\ngen_codes: max_code %d ", max_code));
for (n = 0; n <= max_code; n++) {
var len = tree[n * 2 + 1]/*.Len*/;
if (len === 0) { continue; }
/* Now reverse the bits */
tree[n * 2]/*.Code*/ = bi_reverse(next_code[len]++, len);
//Tracecv(tree != static_ltree, (stderr,"\nn %3d %c l %2d c %4x (%x) ",
// n, (isgraph(n) ? n : ' '), len, tree[n].Code, next_code[len]-1));
}
}
/* ===========================================================================
* Initialize the various 'constant' tables.
*/
function tr_static_init() {
var n; /* iterates over tree elements */
var bits; /* bit counter */
var length; /* length value */
var code; /* code value */
var dist; /* distance index */
var bl_count = new Array(MAX_BITS + 1);
/* number of codes at each bit length for an optimal tree */
// do check in _tr_init()
//if (static_init_done) return;
/* For some embedded targets, global variables are not initialized: */
/*#ifdef NO_INIT_GLOBAL_POINTERS
static_l_desc.static_tree = static_ltree;
static_l_desc.extra_bits = extra_lbits;
static_d_desc.static_tree = static_dtree;
static_d_desc.extra_bits = extra_dbits;
static_bl_desc.extra_bits = extra_blbits;
#endif*/
/* Initialize the mapping length (0..255) -> length code (0..28) */
length = 0;
for (code = 0; code < LENGTH_CODES - 1; code++) {
base_length[code] = length;
for (n = 0; n < (1 << extra_lbits[code]); n++) {
_length_code[length++] = code;
}
}
//Assert (length == 256, "tr_static_init: length != 256");
/* Note that the length 255 (match length 258) can be represented
* in two different ways: code 284 + 5 bits or code 285, so we
* overwrite length_code[255] to use the best encoding:
*/
_length_code[length - 1] = code;
/* Initialize the mapping dist (0..32K) -> dist code (0..29) */
dist = 0;
for (code = 0; code < 16; code++) {
base_dist[code] = dist;
for (n = 0; n < (1 << extra_dbits[code]); n++) {
_dist_code[dist++] = code;
}
}
//Assert (dist == 256, "tr_static_init: dist != 256");
dist >>= 7; /* from now on, all distances are divided by 128 */
for (; code < D_CODES; code++) {
base_dist[code] = dist << 7;
for (n = 0; n < (1 << (extra_dbits[code] - 7)); n++) {
_dist_code[256 + dist++] = code;
}
}
//Assert (dist == 256, "tr_static_init: 256+dist != 512");
/* Construct the codes of the static literal tree */
for (bits = 0; bits <= MAX_BITS; bits++) {
bl_count[bits] = 0;
}
n = 0;
while (n <= 143) {
static_ltree[n * 2 + 1]/*.Len*/ = 8;
n++;
bl_count[8]++;
}
while (n <= 255) {
static_ltree[n * 2 + 1]/*.Len*/ = 9;
n++;
bl_count[9]++;
}
while (n <= 279) {
static_ltree[n * 2 + 1]/*.Len*/ = 7;
n++;
bl_count[7]++;
}
while (n <= 287) {
static_ltree[n * 2 + 1]/*.Len*/ = 8;
n++;
bl_count[8]++;
}
/* Codes 286 and 287 do not exist, but we must include them in the
* tree construction to get a canonical Huffman tree (longest code
* all ones)
*/
gen_codes(static_ltree, L_CODES + 1, bl_count);
/* The static distance tree is trivial: */
for (n = 0; n < D_CODES; n++) {
static_dtree[n * 2 + 1]/*.Len*/ = 5;
static_dtree[n * 2]/*.Code*/ = bi_reverse(n, 5);
}
// Now data ready and we can init static trees
static_l_desc = new StaticTreeDesc(static_ltree, extra_lbits, LITERALS + 1, L_CODES, MAX_BITS);
static_d_desc = new StaticTreeDesc(static_dtree, extra_dbits, 0, D_CODES, MAX_BITS);
static_bl_desc = new StaticTreeDesc(new Array(0), extra_blbits, 0, BL_CODES, MAX_BL_BITS);
//static_init_done = true;
}
/* ===========================================================================
* Initialize a new block.
*/
function init_block(s) {
var n; /* iterates over tree elements */
/* Initialize the trees. */
for (n = 0; n < L_CODES; n++) { s.dyn_ltree[n * 2]/*.Freq*/ = 0; }
for (n = 0; n < D_CODES; n++) { s.dyn_dtree[n * 2]/*.Freq*/ = 0; }
for (n = 0; n < BL_CODES; n++) { s.bl_tree[n * 2]/*.Freq*/ = 0; }
s.dyn_ltree[END_BLOCK * 2]/*.Freq*/ = 1;
s.opt_len = s.static_len = 0;
s.last_lit = s.matches = 0;
}
/* ===========================================================================
* Flush the bit buffer and align the output on a byte boundary
*/
function bi_windup(s) {
if (s.bi_valid > 8) {
put_short(s, s.bi_buf);
} else if (s.bi_valid > 0) {
//put_byte(s, (Byte)s->bi_buf);
s.pending_buf[s.pending++] = s.bi_buf;
}
s.bi_buf = 0;
s.bi_valid = 0;
}
/* ===========================================================================
* Copy a stored block, storing first the length and its
* one's complement if requested.
*/
function copy_block(s, buf, len, header)
//DeflateState *s;
//charf *buf; /* the input data */
//unsigned len; /* its length */
//int header; /* true if block header must be written */
{
bi_windup(s); /* align on byte boundary */
if (header) {
put_short(s, len);
put_short(s, ~len);
}
// while (len--) {
// put_byte(s, *buf++);
// }
utils.arraySet(s.pending_buf, s.window, buf, len, s.pending);
s.pending += len;
}
/* ===========================================================================
* Compares to subtrees, using the tree depth as tie breaker when
* the subtrees have equal frequency. This minimizes the worst case length.
*/
function smaller(tree, n, m, depth) {
var _n2 = n * 2;
var _m2 = m * 2;
return (tree[_n2]/*.Freq*/ < tree[_m2]/*.Freq*/ ||
(tree[_n2]/*.Freq*/ === tree[_m2]/*.Freq*/ && depth[n] <= depth[m]));
}
/* ===========================================================================
* Restore the heap property by moving down the tree starting at node k,
* exchanging a node with the smallest of its two sons if necessary, stopping
* when the heap property is re-established (each father smaller than its
* two sons).
*/
function pqdownheap(s, tree, k)
// deflate_state *s;
// ct_data *tree; /* the tree to restore */
// int k; /* node to move down */
{
var v = s.heap[k];
var j = k << 1; /* left son of k */
while (j <= s.heap_len) {
/* Set j to the smallest of the two sons: */
if (j < s.heap_len &&
smaller(tree, s.heap[j + 1], s.heap[j], s.depth)) {
j++;
}
/* Exit if v is smaller than both sons */
if (smaller(tree, v, s.heap[j], s.depth)) { break; }
/* Exchange v with the smallest son */
s.heap[k] = s.heap[j];
k = j;
/* And continue down the tree, setting j to the left son of k */
j <<= 1;
}
s.heap[k] = v;
}
// inlined manually
// var SMALLEST = 1;
/* ===========================================================================
* Send the block data compressed using the given Huffman trees
*/
function compress_block(s, ltree, dtree)
// deflate_state *s;
// const ct_data *ltree; /* literal tree */
// const ct_data *dtree; /* distance tree */
{
var dist; /* distance of matched string */
var lc; /* match length or unmatched char (if dist == 0) */
var lx = 0; /* running index in l_buf */
var code; /* the code to send */
var extra; /* number of extra bits to send */
if (s.last_lit !== 0) {
do {
dist = (s.pending_buf[s.d_buf + lx * 2] << 8) | (s.pending_buf[s.d_buf + lx * 2 + 1]);
lc = s.pending_buf[s.l_buf + lx];
lx++;
if (dist === 0) {
send_code(s, lc, ltree); /* send a literal byte */
//Tracecv(isgraph(lc), (stderr," '%c' ", lc));
} else {
/* Here, lc is the match length - MIN_MATCH */
code = _length_code[lc];
send_code(s, code + LITERALS + 1, ltree); /* send the length code */
extra = extra_lbits[code];
if (extra !== 0) {
lc -= base_length[code];
send_bits(s, lc, extra); /* send the extra length bits */
}
dist--; /* dist is now the match distance - 1 */
code = d_code(dist);
//Assert (code < D_CODES, "bad d_code");
send_code(s, code, dtree); /* send the distance code */
extra = extra_dbits[code];
if (extra !== 0) {
dist -= base_dist[code];
send_bits(s, dist, extra); /* send the extra distance bits */
}
} /* literal or match pair ? */
/* Check that the overlay between pending_buf and d_buf+l_buf is ok: */
//Assert((uInt)(s->pending) < s->lit_bufsize + 2*lx,
// "pendingBuf overflow");
} while (lx < s.last_lit);
}
send_code(s, END_BLOCK, ltree);
}
/* ===========================================================================
* Construct one Huffman tree and assigns the code bit strings and lengths.
* Update the total bit length for the current block.
* IN assertion: the field freq is set for all tree elements.
* OUT assertions: the fields len and code are set to the optimal bit length
* and corresponding code. The length opt_len is updated; static_len is
* also updated if stree is not null. The field max_code is set.
*/
function build_tree(s, desc)
// deflate_state *s;
// tree_desc *desc; /* the tree descriptor */
{
var tree = desc.dyn_tree;
var stree = desc.stat_desc.static_tree;
var has_stree = desc.stat_desc.has_stree;
var elems = desc.stat_desc.elems;
var n, m; /* iterate over heap elements */
var max_code = -1; /* largest code with non zero frequency */
var node; /* new node being created */
/* Construct the initial heap, with least frequent element in
* heap[SMALLEST]. The sons of heap[n] are heap[2*n] and heap[2*n+1].
* heap[0] is not used.
*/
s.heap_len = 0;
s.heap_max = HEAP_SIZE;
for (n = 0; n < elems; n++) {
if (tree[n * 2]/*.Freq*/ !== 0) {
s.heap[++s.heap_len] = max_code = n;
s.depth[n] = 0;
} else {
tree[n * 2 + 1]/*.Len*/ = 0;
}
}
/* The pkzip format requires that at least one distance code exists,
* and that at least one bit should be sent even if there is only one
* possible code. So to avoid special checks later on we force at least
* two codes of non zero frequency.
*/
while (s.heap_len < 2) {
node = s.heap[++s.heap_len] = (max_code < 2 ? ++max_code : 0);
tree[node * 2]/*.Freq*/ = 1;
s.depth[node] = 0;
s.opt_len--;
if (has_stree) {
s.static_len -= stree[node * 2 + 1]/*.Len*/;
}
/* node is 0 or 1 so it does not have extra bits */
}
desc.max_code = max_code;
/* The elements heap[heap_len/2+1 .. heap_len] are leaves of the tree,
* establish sub-heaps of increasing lengths:
*/
for (n = (s.heap_len >> 1/*int /2*/); n >= 1; n--) { pqdownheap(s, tree, n); }
/* Construct the Huffman tree by repeatedly combining the least two
* frequent nodes.
*/
node = elems; /* next internal node of the tree */
do {
//pqremove(s, tree, n); /* n = node of least frequency */
/*** pqremove ***/
n = s.heap[1/*SMALLEST*/];
s.heap[1/*SMALLEST*/] = s.heap[s.heap_len--];
pqdownheap(s, tree, 1/*SMALLEST*/);
/***/
m = s.heap[1/*SMALLEST*/]; /* m = node of next least frequency */
s.heap[--s.heap_max] = n; /* keep the nodes sorted by frequency */
s.heap[--s.heap_max] = m;
/* Create a new node father of n and m */
tree[node * 2]/*.Freq*/ = tree[n * 2]/*.Freq*/ + tree[m * 2]/*.Freq*/;
s.depth[node] = (s.depth[n] >= s.depth[m] ? s.depth[n] : s.depth[m]) + 1;
tree[n * 2 + 1]/*.Dad*/ = tree[m * 2 + 1]/*.Dad*/ = node;
/* and insert the new node in the heap */
s.heap[1/*SMALLEST*/] = node++;
pqdownheap(s, tree, 1/*SMALLEST*/);
} while (s.heap_len >= 2);
s.heap[--s.heap_max] = s.heap[1/*SMALLEST*/];
/* At this point, the fields freq and dad are set. We can now
* generate the bit lengths.
*/
gen_bitlen(s, desc);
/* The field len is now set, we can generate the bit codes */
gen_codes(tree, max_code, s.bl_count);
}
/* ===========================================================================
* Scan a literal or distance tree to determine the frequencies of the codes
* in the bit length tree.
*/
function scan_tree(s, tree, max_code)
// deflate_state *s;
// ct_data *tree; /* the tree to be scanned */
// int max_code; /* and its largest code of non zero frequency */
{
var n; /* iterates over all tree elements */
var prevlen = -1; /* last emitted length */
var curlen; /* length of current code */
var nextlen = tree[0 * 2 + 1]/*.Len*/; /* length of next code */
var count = 0; /* repeat count of the current code */
var max_count = 7; /* max repeat count */
var min_count = 4; /* min repeat count */
if (nextlen === 0) {
max_count = 138;
min_count = 3;
}
tree[(max_code + 1) * 2 + 1]/*.Len*/ = 0xffff; /* guard */
for (n = 0; n <= max_code; n++) {
curlen = nextlen;
nextlen = tree[(n + 1) * 2 + 1]/*.Len*/;
if (++count < max_count && curlen === nextlen) {
continue;
} else if (count < min_count) {
s.bl_tree[curlen * 2]/*.Freq*/ += count;
} else if (curlen !== 0) {
if (curlen !== prevlen) { s.bl_tree[curlen * 2]/*.Freq*/++; }
s.bl_tree[REP_3_6 * 2]/*.Freq*/++;
} else if (count <= 10) {
s.bl_tree[REPZ_3_10 * 2]/*.Freq*/++;
} else {
s.bl_tree[REPZ_11_138 * 2]/*.Freq*/++;
}
count = 0;
prevlen = curlen;
if (nextlen === 0) {
max_count = 138;
min_count = 3;
} else if (curlen === nextlen) {
max_count = 6;
min_count = 3;
} else {
max_count = 7;
min_count = 4;
}
}
}
/* ===========================================================================
* Send a literal or distance tree in compressed form, using the codes in
* bl_tree.
*/
function send_tree(s, tree, max_code)
// deflate_state *s;
// ct_data *tree; /* the tree to be scanned */
// int max_code; /* and its largest code of non zero frequency */
{
var n; /* iterates over all tree elements */
var prevlen = -1; /* last emitted length */
var curlen; /* length of current code */
var nextlen = tree[0 * 2 + 1]/*.Len*/; /* length of next code */
var count = 0; /* repeat count of the current code */
var max_count = 7; /* max repeat count */
var min_count = 4; /* min repeat count */
/* tree[max_code+1].Len = -1; */ /* guard already set */
if (nextlen === 0) {
max_count = 138;
min_count = 3;
}
for (n = 0; n <= max_code; n++) {
curlen = nextlen;
nextlen = tree[(n + 1) * 2 + 1]/*.Len*/;
if (++count < max_count && curlen === nextlen) {
continue;
} else if (count < min_count) {
do { send_code(s, curlen, s.bl_tree); } while (--count !== 0);
} else if (curlen !== 0) {
if (curlen !== prevlen) {
send_code(s, curlen, s.bl_tree);
count--;
}
//Assert(count >= 3 && count <= 6, " 3_6?");
send_code(s, REP_3_6, s.bl_tree);
send_bits(s, count - 3, 2);
} else if (count <= 10) {
send_code(s, REPZ_3_10, s.bl_tree);
send_bits(s, count - 3, 3);
} else {
send_code(s, REPZ_11_138, s.bl_tree);
send_bits(s, count - 11, 7);
}
count = 0;
prevlen = curlen;
if (nextlen === 0) {
max_count = 138;
min_count = 3;
} else if (curlen === nextlen) {
max_count = 6;
min_count = 3;
} else {
max_count = 7;
min_count = 4;
}
}
}
/* ===========================================================================
* Construct the Huffman tree for the bit lengths and return the index in
* bl_order of the last bit length code to send.
*/
function build_bl_tree(s) {
var max_blindex; /* index of last bit length code of non zero freq */
/* Determine the bit length frequencies for literal and distance trees */
scan_tree(s, s.dyn_ltree, s.l_desc.max_code);
scan_tree(s, s.dyn_dtree, s.d_desc.max_code);
/* Build the bit length tree: */
build_tree(s, s.bl_desc);
/* opt_len now includes the length of the tree representations, except
* the lengths of the bit lengths codes and the 5+5+4 bits for the counts.
*/
/* Determine the number of bit length codes to send. The pkzip format
* requires that at least 4 bit length codes be sent. (appnote.txt says
* 3 but the actual value used is 4.)
*/
for (max_blindex = BL_CODES - 1; max_blindex >= 3; max_blindex--) {
if (s.bl_tree[bl_order[max_blindex] * 2 + 1]/*.Len*/ !== 0) {
break;
}
}
/* Update opt_len to include the bit length tree and counts */
s.opt_len += 3 * (max_blindex + 1) + 5 + 5 + 4;
//Tracev((stderr, "\ndyn trees: dyn %ld, stat %ld",
// s->opt_len, s->static_len));
return max_blindex;
}
/* ===========================================================================
* Send the header for a block using dynamic Huffman trees: the counts, the
* lengths of the bit length codes, the literal tree and the distance tree.
* IN assertion: lcodes >= 257, dcodes >= 1, blcodes >= 4.
*/
function send_all_trees(s, lcodes, dcodes, blcodes)
// deflate_state *s;
// int lcodes, dcodes, blcodes; /* number of codes for each tree */
{
var rank; /* index in bl_order */
//Assert (lcodes >= 257 && dcodes >= 1 && blcodes >= 4, "not enough codes");
//Assert (lcodes <= L_CODES && dcodes <= D_CODES && blcodes <= BL_CODES,
// "too many codes");
//Tracev((stderr, "\nbl counts: "));
send_bits(s, lcodes - 257, 5); /* not +255 as stated in appnote.txt */
send_bits(s, dcodes - 1, 5);
send_bits(s, blcodes - 4, 4); /* not -3 as stated in appnote.txt */
for (rank = 0; rank < blcodes; rank++) {
//Tracev((stderr, "\nbl code %2d ", bl_order[rank]));
send_bits(s, s.bl_tree[bl_order[rank] * 2 + 1]/*.Len*/, 3);
}
//Tracev((stderr, "\nbl tree: sent %ld", s->bits_sent));
send_tree(s, s.dyn_ltree, lcodes - 1); /* literal tree */
//Tracev((stderr, "\nlit tree: sent %ld", s->bits_sent));
send_tree(s, s.dyn_dtree, dcodes - 1); /* distance tree */
//Tracev((stderr, "\ndist tree: sent %ld", s->bits_sent));
}
/* ===========================================================================
* Check if the data type is TEXT or BINARY, using the following algorithm:
* - TEXT if the two conditions below are satisfied:
* a) There are no non-portable control characters belonging to the
* "black list" (0..6, 14..25, 28..31).
* b) There is at least one printable character belonging to the
* "white list" (9 {TAB}, 10 {LF}, 13 {CR}, 32..255).
* - BINARY otherwise.
* - The following partially-portable control characters form a
* "gray list" that is ignored in this detection algorithm:
* (7 {BEL}, 8 {BS}, 11 {VT}, 12 {FF}, 26 {SUB}, 27 {ESC}).
* IN assertion: the fields Freq of dyn_ltree are set.
*/
function detect_data_type(s) {
/* black_mask is the bit mask of black-listed bytes
* set bits 0..6, 14..25, and 28..31
* 0xf3ffc07f = binary 11110011111111111100000001111111
*/
var black_mask = 0xf3ffc07f;
var n;
/* Check for non-textual ("black-listed") bytes. */
for (n = 0; n <= 31; n++, black_mask >>>= 1) {
if ((black_mask & 1) && (s.dyn_ltree[n * 2]/*.Freq*/ !== 0)) {
return Z_BINARY;
}
}
/* Check for textual ("white-listed") bytes. */
if (s.dyn_ltree[9 * 2]/*.Freq*/ !== 0 || s.dyn_ltree[10 * 2]/*.Freq*/ !== 0 ||
s.dyn_ltree[13 * 2]/*.Freq*/ !== 0) {
return Z_TEXT;
}
for (n = 32; n < LITERALS; n++) {
if (s.dyn_ltree[n * 2]/*.Freq*/ !== 0) {
return Z_TEXT;
}
}
/* There are no "black-listed" or "white-listed" bytes:
* this stream either is empty or has tolerated ("gray-listed") bytes only.
*/
return Z_BINARY;
}
var static_init_done = false;
/* ===========================================================================
* Initialize the tree data structures for a new zlib stream.
*/
function _tr_init(s) {
if (!static_init_done) {
tr_static_init();
static_init_done = true;
}
s.l_desc = new TreeDesc(s.dyn_ltree, static_l_desc);
s.d_desc = new TreeDesc(s.dyn_dtree, static_d_desc);
s.bl_desc = new TreeDesc(s.bl_tree, static_bl_desc);
s.bi_buf = 0;
s.bi_valid = 0;
/* Initialize the first block of the first file: */
init_block(s);
}
/* ===========================================================================
* Send a stored block
*/
function _tr_stored_block(s, buf, stored_len, last)
//DeflateState *s;
//charf *buf; /* input block */
//ulg stored_len; /* length of input block */
//int last; /* one if this is the last block for a file */
{
send_bits(s, (STORED_BLOCK << 1) + (last ? 1 : 0), 3); /* send block type */
copy_block(s, buf, stored_len, true); /* with header */
}
/* ===========================================================================
* Send one empty static block to give enough lookahead for inflate.
* This takes 10 bits, of which 7 may remain in the bit buffer.
*/
function _tr_align(s) {
send_bits(s, STATIC_TREES << 1, 3);
send_code(s, END_BLOCK, static_ltree);
bi_flush(s);
}
/* ===========================================================================
* Determine the best encoding for the current block: dynamic trees, static
* trees or store, and output the encoded block to the zip file.
*/
function _tr_flush_block(s, buf, stored_len, last)
//DeflateState *s;
//charf *buf; /* input block, or NULL if too old */
//ulg stored_len; /* length of input block */
//int last; /* one if this is the last block for a file */
{
var opt_lenb, static_lenb; /* opt_len and static_len in bytes */
var max_blindex = 0; /* index of last bit length code of non zero freq */
/* Build the Huffman trees unless a stored block is forced */
if (s.level > 0) {
/* Check if the file is binary or text */
if (s.strm.data_type === Z_UNKNOWN) {
s.strm.data_type = detect_data_type(s);
}
/* Construct the literal and distance trees */
build_tree(s, s.l_desc);
// Tracev((stderr, "\nlit data: dyn %ld, stat %ld", s->opt_len,
// s->static_len));
build_tree(s, s.d_desc);
// Tracev((stderr, "\ndist data: dyn %ld, stat %ld", s->opt_len,
// s->static_len));
/* At this point, opt_len and static_len are the total bit lengths of
* the compressed block data, excluding the tree representations.
*/
/* Build the bit length tree for the above two trees, and get the index
* in bl_order of the last bit length code to send.
*/
max_blindex = build_bl_tree(s);
/* Determine the best encoding. Compute the block lengths in bytes. */
opt_lenb = (s.opt_len + 3 + 7) >>> 3;
static_lenb = (s.static_len + 3 + 7) >>> 3;
// Tracev((stderr, "\nopt %lu(%lu) stat %lu(%lu) stored %lu lit %u ",
// opt_lenb, s->opt_len, static_lenb, s->static_len, stored_len,
// s->last_lit));
if (static_lenb <= opt_lenb) { opt_lenb = static_lenb; }
} else {
// Assert(buf != (char*)0, "lost buf");
opt_lenb = static_lenb = stored_len + 5; /* force a stored block */
}
if ((stored_len + 4 <= opt_lenb) && (buf !== -1)) {
/* 4: two words for the lengths */
/* The test buf != NULL is only necessary if LIT_BUFSIZE > WSIZE.
* Otherwise we can't have processed more than WSIZE input bytes since
* the last block flush, because compression would have been
* successful. If LIT_BUFSIZE <= WSIZE, it is never too late to
* transform a block into a stored block.
*/
_tr_stored_block(s, buf, stored_len, last);
} else if (s.strategy === Z_FIXED || static_lenb === opt_lenb) {
send_bits(s, (STATIC_TREES << 1) + (last ? 1 : 0), 3);
compress_block(s, static_ltree, static_dtree);
} else {
send_bits(s, (DYN_TREES << 1) + (last ? 1 : 0), 3);
send_all_trees(s, s.l_desc.max_code + 1, s.d_desc.max_code + 1, max_blindex + 1);
compress_block(s, s.dyn_ltree, s.dyn_dtree);
}
// Assert (s->compressed_len == s->bits_sent, "bad compressed size");
/* The above check is made mod 2^32, for files larger than 512 MB
* and uLong implemented on 32 bits.
*/
init_block(s);
if (last) {
bi_windup(s);
}
// Tracev((stderr,"\ncomprlen %lu(%lu) ", s->compressed_len>>3,
// s->compressed_len-7*last));
}
/* ===========================================================================
* Save the match info and tally the frequency counts. Return true if
* the current block must be flushed.
*/
function _tr_tally(s, dist, lc)
// deflate_state *s;
// unsigned dist; /* distance of matched string */
// unsigned lc; /* match length-MIN_MATCH or unmatched char (if dist==0) */
{
//var out_length, in_length, dcode;
s.pending_buf[s.d_buf + s.last_lit * 2] = (dist >>> 8) & 0xff;
s.pending_buf[s.d_buf + s.last_lit * 2 + 1] = dist & 0xff;
s.pending_buf[s.l_buf + s.last_lit] = lc & 0xff;
s.last_lit++;
if (dist === 0) {
/* lc is the unmatched char */
s.dyn_ltree[lc * 2]/*.Freq*/++;
} else {
s.matches++;
/* Here, lc is the match length - MIN_MATCH */
dist--; /* dist = match distance - 1 */
//Assert((ush)dist < (ush)MAX_DIST(s) &&
// (ush)lc <= (ush)(MAX_MATCH-MIN_MATCH) &&
// (ush)d_code(dist) < (ush)D_CODES, "_tr_tally: bad match");
s.dyn_ltree[(_length_code[lc] + LITERALS + 1) * 2]/*.Freq*/++;
s.dyn_dtree[d_code(dist) * 2]/*.Freq*/++;
}
// (!) This block is disabled in zlib defailts,
// don't enable it for binary compatibility
//#ifdef TRUNCATE_BLOCK
// /* Try to guess if it is profitable to stop the current block here */
// if ((s.last_lit & 0x1fff) === 0 && s.level > 2) {
// /* Compute an upper bound for the compressed length */
// out_length = s.last_lit*8;
// in_length = s.strstart - s.block_start;
//
// for (dcode = 0; dcode < D_CODES; dcode++) {
// out_length += s.dyn_dtree[dcode*2]/*.Freq*/ * (5 + extra_dbits[dcode]);
// }
// out_length >>>= 3;
// //Tracev((stderr,"\nlast_lit %u, in %ld, out ~%ld(%ld%%) ",
// // s->last_lit, in_length, out_length,
// // 100L - out_length*100L/in_length));
// if (s.matches < (s.last_lit>>1)/*int /2*/ && out_length < (in_length>>1)/*int /2*/) {
// return true;
// }
// }
//#endif
return (s.last_lit === s.lit_bufsize - 1);
/* We avoid equality with lit_bufsize because of wraparound at 64K
* on 16 bit machines and because stored blocks are restricted to
* 64K-1 bytes.
*/
}
exports._tr_init = _tr_init;
exports._tr_stored_block = _tr_stored_block;
exports._tr_flush_block = _tr_flush_block;
exports._tr_tally = _tr_tally;
exports._tr_align = _tr_align;
}, { "../utils/common": 40}], 52: [function (require, module, exports) {
'use strict';
function ZStream() {
/* next input byte */
this.input = null; // JS specific, because we have no pointers
this.next_in = 0;
/* number of bytes available at input */
this.avail_in = 0;
/* total number of input bytes read so far */
this.total_in = 0;
/* next output byte should be put there */
this.output = null; // JS specific, because we have no pointers
this.next_out = 0;
/* remaining free space at output */
this.avail_out = 0;
/* total number of bytes output so far */
this.total_out = 0;
/* last error message, NULL if no error */
this.msg = ''/*Z_NULL*/;
/* not visible by applications */
this.state = null;
/* best guess about the data type: binary or text */
this.data_type = 2/*Z_UNKNOWN*/;
/* adler32 value of the uncompressed data */
this.adler = 0;
}
module.exports = ZStream;
}, {}], 53: [function (require, module, exports) {
function dbfHeader(buffer) {
var data = new DataView(buffer);
var out = {};
out.lastUpdated = new Date(data.getUint8(1, true) + 1900, data.getUint8(2, true), data.getUint8(3, true));
out.records = data.getUint32(4, true);
out.headerLen = data.getUint16(8, true);
out.recLen = data.getUint16(10, true);
return out;
}
function dbfRowHeader(buffer, headerLen) {
var data = new DataView(buffer);
var out = [];
var offset = 32;
while (offset < headerLen) {
var tempBuffer = buffer.slice(offset, offset + 11);
var decodedText = decoder.decode(tempBuffer, { stream: true });//先按中文解码
tempBuffer = null;
var name = String.fromCharCode.apply(this, (new Uint8Array(buffer, offset, 11))).replace(/\0|\s+$/g, '');//同时也按ascii解码，
if (isChineseChar(decodedText)) {//如果按中文解码出来的文本的确是中文字符
name = decodedText; //那么就用中文字符替换英文字符，否则就用ascii解码的结果
}
out.push({
name: name,
dataType: String.fromCharCode(data.getUint8(offset + 11)),
len: data.getUint8(offset + 16),
decimal: data.getUint8(offset + 17)
});
if (data.getUint8(offset + 32) === 13) {
break;
} else {
offset += 32;
}
}
return out;
}
//是否含有中文（也包含日文和韩文）
function isChineseChar(str) {
var reg = /[\u4E00-\u9FA5\uF900-\uFA2D]/;
return reg.test(str);
}
//同理，是否含有全角符号的函数
function isFullwidthChar(str) {
var reg = /[\uFF00-\uFFEF]/;
return reg.test(str);
}
var decoder = new TextDecoder("gb2312");//解决中文乱码问题
function rowFuncs(buffer, offset, len, type) {
var data = (new Uint8Array(buffer, offset, len));
var tempBuffer = buffer.slice(offset, offset+len);
var decodedText = decoder.decode(tempBuffer, { stream: true });
tempBuffer = null;
var textData = String.fromCharCode.apply(this, data).replace(/\0|\s+$/g, '');
if (isChineseChar(decodedText)) {
textData = decodedText;
}
switch (type) {
case 'N':
case 'F':
case 'O':
return parseFloat(textData, 10);
case 'D':
return new Date(textData.slice(0, 4), parseInt(textData.slice(4, 6), 10) - 1, textData.slice(6, 8));
case 'L':
return textData.toLowerCase() === 'y' || textData.toLowerCase() === 't';
default:
return textData;
}
}
function parseRow(buffer, offset, rowHeaders) {
var out = {};
var i = 0;
var len = rowHeaders.length;
var field;
var header;
while (i < len) {
header = rowHeaders[i];
field = rowFuncs(buffer, offset, header.len, header.dataType);
offset += header.len;
if (typeof field !== 'undefined') {
out[header.name] = field;
}
i++;
}
return out;
}
module.exports = function (buffer) {
var header = dbfHeader(buffer);
var rowHeaders = dbfRowHeader(buffer, header.headerLen - 1);
var offset = ((rowHeaders.length + 1) << 5) + 2;
var recLen = header.recLen;
var records = header.records;
var out = [];
while (records) {
out.push(parseRow(buffer, offset, rowHeaders));
offset += recLen;
records--;
}
return out;
};
}, {}], 54: [function (require, module, exports) {
var mgrs = require('mgrs');
function Point(x, y, z) {
if (!(this instanceof Point)) {
return new Point(x, y, z);
}
if (Array.isArray(x)) {
this.x = x[0];
this.y = x[1];
this.z = x[2] || 0.0;
} else if (typeof x === 'object') {
this.x = x.x;
this.y = x.y;
this.z = x.z || 0.0;
} else if (typeof x === 'string' && typeof y === 'undefined') {
var coords = x.split(',');
this.x = parseFloat(coords[0], 10);
this.y = parseFloat(coords[1], 10);
this.z = parseFloat(coords[2], 10) || 0.0;
} else {
this.x = x;
this.y = y;
this.z = z || 0.0;
}
console.warn('proj4.Point will be removed in version 3, use proj4.toPoint');
}
Point.fromMGRS = function (mgrsStr) {
return new Point(mgrs.toPoint(mgrsStr));
};
Point.prototype.toMGRS = function (accuracy) {
return mgrs.forward([this.x, this.y], accuracy);
};
module.exports = Point;
}, { "mgrs": 36}], 55: [function (require, module, exports) {
var parseCode = require("./parseCode");
var extend = require('./extend');
var projections = require('./projections');
var deriveConstants = require('./deriveConstants');
function Projection(srsCode, callback) {
if (!(this instanceof Projection)) {
return new Projection(srsCode);
}
callback = callback || function (error) {
if (error) {
throw error;
}
};
var json = parseCode(srsCode);
if (typeof json !== 'object') {
callback(srsCode);
return;
}
var modifiedJSON = deriveConstants(json);
var ourProj = Projection.projections.get(modifiedJSON.projName);
if (ourProj) {
extend(this, modifiedJSON);
extend(this, ourProj);
this.init();
callback(null, this);
} else {
callback(srsCode);
}
}
Projection.projections = projections;
Projection.projections.start();
module.exports = Projection;
}, { "./deriveConstants": 86, "./extend": 87, "./parseCode": 91, "./projections": 93}], 56: [function (require, module, exports) {
module.exports = function (crs, denorm, point) {
var xin = point.x,
yin = point.y,
zin = point.z || 0.0;
var v, t, i;
for (i = 0; i < 3; i++) {
if (denorm && i === 2 && point.z === undefined) {
continue;
}
if (i === 0) {
v = xin;
t = 'x';
}
else if (i === 1) {
v = yin;
t = 'y';
}
else {
v = zin;
t = 'z';
}
switch (crs.axis[i]) {
case 'e':
point[t] = v;
break;
case 'w':
point[t] = -v;
break;
case 'n':
point[t] = v;
break;
case 's':
point[t] = -v;
break;
case 'u':
if (point[t] !== undefined) {
point.z = v;
}
break;
case 'd':
if (point[t] !== undefined) {
point.z = -v;
}
break;
default:
//console.log("ERROR: unknow axis ("+crs.axis[i]+") - check definition of "+crs.projName);
return null;
}
}
return point;
};
}, {}], 57: [function (require, module, exports) {
var HALF_PI = Math.PI / 2;
var sign = require('./sign');
module.exports = function (x) {
return (Math.abs(x) < HALF_PI) ? x : (x - (sign(x) * Math.PI));
};
}, { "./sign": 74}], 58: [function (require, module, exports) {
var TWO_PI = Math.PI * 2;
// SPI is slightly greater than Math.PI, so values that exceed the -180..180
// degree range by a tiny amount don't get wrapped. This prevents points that
// have drifted from their original location along the 180th meridian (due to
// floating point error) from changing their sign.
var SPI = 3.14159265359;
var sign = require('./sign');
module.exports = function (x) {
return (Math.abs(x) <= SPI) ? x : (x - (sign(x) * TWO_PI));
};
}, { "./sign": 74}], 59: [function (require, module, exports) {
module.exports = function (x) {
if (Math.abs(x) > 1) {
x = (x > 1) ? 1 : -1;
}
return Math.asin(x);
};
}, {}], 60: [function (require, module, exports) {
module.exports = function (x) {
return (1 - 0.25 * x * (1 + x / 16 * (3 + 1.25 * x)));
};
}, {}], 61: [function (require, module, exports) {
module.exports = function (x) {
return (0.375 * x * (1 + 0.25 * x * (1 + 0.46875 * x)));
};
}, {}], 62: [function (require, module, exports) {
module.exports = function (x) {
return (0.05859375 * x * x * (1 + 0.75 * x));
};
}, {}], 63: [function (require, module, exports) {
module.exports = function (x) {
return (x * x * x * (35 / 3072));
};
}, {}], 64: [function (require, module, exports) {
module.exports = function (a, e, sinphi) {
var temp = e * sinphi;
return a / Math.sqrt(1 - temp * temp);
};
}, {}], 65: [function (require, module, exports) {
module.exports = function (ml, e0, e1, e2, e3) {
var phi;
var dphi;
phi = ml / e0;
for (var i = 0; i < 15; i++) {
dphi = (ml - (e0 * phi - e1 * Math.sin(2 * phi) + e2 * Math.sin(4 * phi) - e3 * Math.sin(6 * phi))) / (e0 - 2 * e1 * Math.cos(2 * phi) + 4 * e2 * Math.cos(4 * phi) - 6 * e3 * Math.cos(6 * phi));
phi += dphi;
if (Math.abs(dphi) <= 0.0000000001) {
return phi;
}
}
//..reportError("IMLFN-CONV:Latitude failed to converge after 15 iterations");
return NaN;
};
}, {}], 66: [function (require, module, exports) {
var HALF_PI = Math.PI / 2;
module.exports = function (eccent, q) {
var temp = 1 - (1 - eccent * eccent) / (2 * eccent) * Math.log((1 - eccent) / (1 + eccent));
if (Math.abs(Math.abs(q) - temp) < 1.0E-6) {
if (q < 0) {
return (-1 * HALF_PI);
}
else {
return HALF_PI;
}
}
//var phi = 0.5* q/(1-eccent*eccent);
var phi = Math.asin(0.5 * q);
var dphi;
var sin_phi;
var cos_phi;
var con;
for (var i = 0; i < 30; i++) {
sin_phi = Math.sin(phi);
cos_phi = Math.cos(phi);
con = eccent * sin_phi;
dphi = Math.pow(1 - con * con, 2) / (2 * cos_phi) * (q / (1 - eccent * eccent) - sin_phi / (1 - con * con) + 0.5 / eccent * Math.log((1 - con) / (1 + con)));
phi += dphi;
if (Math.abs(dphi) <= 0.0000000001) {
return phi;
}
}
//console.log("IQSFN-CONV:Latitude failed to converge after 30 iterations");
return NaN;
};
}, {}], 67: [function (require, module, exports) {
module.exports = function (e0, e1, e2, e3, phi) {
return (e0 * phi - e1 * Math.sin(2 * phi) + e2 * Math.sin(4 * phi) - e3 * Math.sin(6 * phi));
};
}, {}], 68: [function (require, module, exports) {
module.exports = function (eccent, sinphi, cosphi) {
var con = eccent * sinphi;
return cosphi / (Math.sqrt(1 - con * con));
};
}, {}], 69: [function (require, module, exports) {
var HALF_PI = Math.PI / 2;
module.exports = function (eccent, ts) {
var eccnth = 0.5 * eccent;
var con, dphi;
var phi = HALF_PI - 2 * Math.atan(ts);
for (var i = 0; i <= 15; i++) {
con = eccent * Math.sin(phi);
dphi = HALF_PI - 2 * Math.atan(ts * (Math.pow(((1 - con) / (1 + con)), eccnth))) - phi;
phi += dphi;
if (Math.abs(dphi) <= 0.0000000001) {
return phi;
}
}
//console.log("phi2z has NoConvergence");
return -9999;
};
}, {}], 70: [function (require, module, exports) {
var C00 = 1;
var C02 = 0.25;
var C04 = 0.046875;
var C06 = 0.01953125;
var C08 = 0.01068115234375;
var C22 = 0.75;
var C44 = 0.46875;
var C46 = 0.01302083333333333333;
var C48 = 0.00712076822916666666;
var C66 = 0.36458333333333333333;
var C68 = 0.00569661458333333333;
var C88 = 0.3076171875;
module.exports = function (es) {
var en = [];
en[0] = C00 - es * (C02 + es * (C04 + es * (C06 + es * C08)));
en[1] = es * (C22 - es * (C04 + es * (C06 + es * C08)));
var t = es * es;
en[2] = t * (C44 - es * (C46 + es * C48));
t *= es;
en[3] = t * (C66 - es * C68);
en[4] = t * es * C88;
return en;
};
}, {}], 71: [function (require, module, exports) {
var pj_mlfn = require("./pj_mlfn");
var EPSLN = 1.0e-10;
var MAX_ITER = 20;
module.exports = function (arg, es, en) {
var k = 1 / (1 - es);
var phi = arg;
for (var i = MAX_ITER; i; --i) { /* rarely goes over 2 iterations */
var s = Math.sin(phi);
var t = 1 - es * s * s;
//t = this.pj_mlfn(phi, s, Math.cos(phi), en) - arg;
//phi -= t * (t * Math.sqrt(t)) * k;
t = (pj_mlfn(phi, s, Math.cos(phi), en) - arg) * (t * Math.sqrt(t)) * k;
phi -= t;
if (Math.abs(t) < EPSLN) {
return phi;
}
}
//..reportError("cass:pj_inv_mlfn: Convergence error");
return phi;
};
}, { "./pj_mlfn": 72}], 72: [function (require, module, exports) {
module.exports = function (phi, sphi, cphi, en) {
cphi *= sphi;
sphi *= sphi;
return (en[0] * phi - cphi * (en[1] + sphi * (en[2] + sphi * (en[3] + sphi * en[4]))));
};
}, {}], 73: [function (require, module, exports) {
module.exports = function (eccent, sinphi) {
var con;
if (eccent > 1.0e-7) {
con = eccent * sinphi;
return ((1 - eccent * eccent) * (sinphi / (1 - con * con) - (0.5 / eccent) * Math.log((1 - con) / (1 + con))));
}
else {
return (2 * sinphi);
}
};
}, {}], 74: [function (require, module, exports) {
module.exports = function (x) {
return x < 0 ? -1 : 1;
};
}, {}], 75: [function (require, module, exports) {
module.exports = function (esinp, exp) {
return (Math.pow((1 - esinp) / (1 + esinp), exp));
};
}, {}], 76: [function (require, module, exports) {
module.exports = function (array) {
var out = {
x: array[0],
y: array[1]
};
if (array.length > 2) {
out.z = array[2];
}
if (array.length > 3) {
out.m = array[3];
}
return out;
};
}, {}], 77: [function (require, module, exports) {
var HALF_PI = Math.PI / 2;
module.exports = function (eccent, phi, sinphi) {
var con = eccent * sinphi;
var com = 0.5 * eccent;
con = Math.pow(((1 - con) / (1 + con)), com);
return (Math.tan(0.5 * (HALF_PI - phi)) / con);
};
}, {}], 78: [function (require, module, exports) {
exports.wgs84 = {
towgs84: "0,0,0",
ellipse: "WGS84",
datumName: "WGS84"
};
exports.ch1903 = {
towgs84: "674.374,15.056,405.346",
ellipse: "bessel",
datumName: "swiss"
};
exports.ggrs87 = {
towgs84: "-199.87,74.79,246.62",
ellipse: "GRS80",
datumName: "Greek_Geodetic_Reference_System_1987"
};
exports.nad83 = {
towgs84: "0,0,0",
ellipse: "GRS80",
datumName: "North_American_Datum_1983"
};
exports.nad27 = {
nadgrids: "@conus,@alaska,@ntv2_0.gsb,@ntv1_can.dat",
ellipse: "clrk66",
datumName: "North_American_Datum_1927"
};
exports.potsdam = {
towgs84: "606.0,23.0,413.0",
ellipse: "bessel",
datumName: "Potsdam Rauenberg 1950 DHDN"
};
exports.carthage = {
towgs84: "-263.0,6.0,431.0",
ellipse: "clark80",
datumName: "Carthage 1934 Tunisia"
};
exports.hermannskogel = {
towgs84: "653.0,-212.0,449.0",
ellipse: "bessel",
datumName: "Hermannskogel"
};
exports.ire65 = {
towgs84: "482.530,-130.596,564.557,-1.042,-0.214,-0.631,8.15",
ellipse: "mod_airy",
datumName: "Ireland 1965"
};
exports.rassadiran = {
towgs84: "-133.63,-157.5,-158.62",
ellipse: "intl",
datumName: "Rassadiran"
};
exports.nzgd49 = {
towgs84: "59.47,-5.04,187.44,0.47,-0.1,1.024,-4.5993",
ellipse: "intl",
datumName: "New Zealand Geodetic Datum 1949"
};
exports.osgb36 = {
towgs84: "446.448,-125.157,542.060,0.1502,0.2470,0.8421,-20.4894",
ellipse: "airy",
datumName: "Airy 1830"
};
exports.s_jtsk = {
towgs84: "589,76,480",
ellipse: 'bessel',
datumName: 'S-JTSK (Ferro)'
};
exports.beduaram = {
towgs84: '-106,-87,188',
ellipse: 'clrk80',
datumName: 'Beduaram'
};
exports.gunung_segara = {
towgs84: '-403,684,41',
ellipse: 'bessel',
datumName: 'Gunung Segara Jakarta'
};
exports.rnb72 = {
towgs84: "106.869,-52.2978,103.724,-0.33657,0.456955,-1.84218,1",
ellipse: "intl",
datumName: "Reseau National Belge 1972"
};
}, {}], 79: [function (require, module, exports) {
exports.MERIT = {
a: 6378137.0,
rf: 298.257,
ellipseName: "MERIT 1983"
};
exports.SGS85 = {
a: 6378136.0,
rf: 298.257,
ellipseName: "Soviet Geodetic System 85"
};
exports.GRS80 = {
a: 6378137.0,
rf: 298.257222101,
ellipseName: "GRS 1980(IUGG, 1980)"
};
exports.IAU76 = {
a: 6378140.0,
rf: 298.257,
ellipseName: "IAU 1976"
};
exports.airy = {
a: 6377563.396,
b: 6356256.910,
ellipseName: "Airy 1830"
};
exports.APL4 = {
a: 6378137,
rf: 298.25,
ellipseName: "Appl. Physics. 1965"
};
exports.NWL9D = {
a: 6378145.0,
rf: 298.25,
ellipseName: "Naval Weapons Lab., 1965"
};
exports.mod_airy = {
a: 6377340.189,
b: 6356034.446,
ellipseName: "Modified Airy"
};
exports.andrae = {
a: 6377104.43,
rf: 300.0,
ellipseName: "Andrae 1876 (Den., Iclnd.)"
};
exports.aust_SA = {
a: 6378160.0,
rf: 298.25,
ellipseName: "Australian Natl & S. Amer. 1969"
};
exports.GRS67 = {
a: 6378160.0,
rf: 298.2471674270,
ellipseName: "GRS 67(IUGG 1967)"
};
exports.bessel = {
a: 6377397.155,
rf: 299.1528128,
ellipseName: "Bessel 1841"
};
exports.bess_nam = {
a: 6377483.865,
rf: 299.1528128,
ellipseName: "Bessel 1841 (Namibia)"
};
exports.clrk66 = {
a: 6378206.4,
b: 6356583.8,
ellipseName: "Clarke 1866"
};
exports.clrk80 = {
a: 6378249.145,
rf: 293.4663,
ellipseName: "Clarke 1880 mod."
};
exports.clrk58 = {
a: 6378293.645208759,
rf: 294.2606763692654,
ellipseName: "Clarke 1858"
};
exports.CPM = {
a: 6375738.7,
rf: 334.29,
ellipseName: "Comm. des Poids et Mesures 1799"
};
exports.delmbr = {
a: 6376428.0,
rf: 311.5,
ellipseName: "Delambre 1810 (Belgium)"
};
exports.engelis = {
a: 6378136.05,
rf: 298.2566,
ellipseName: "Engelis 1985"
};
exports.evrst30 = {
a: 6377276.345,
rf: 300.8017,
ellipseName: "Everest 1830"
};
exports.evrst48 = {
a: 6377304.063,
rf: 300.8017,
ellipseName: "Everest 1948"
};
exports.evrst56 = {
a: 6377301.243,
rf: 300.8017,
ellipseName: "Everest 1956"
};
exports.evrst69 = {
a: 6377295.664,
rf: 300.8017,
ellipseName: "Everest 1969"
};
exports.evrstSS = {
a: 6377298.556,
rf: 300.8017,
ellipseName: "Everest (Sabah & Sarawak)"
};
exports.fschr60 = {
a: 6378166.0,
rf: 298.3,
ellipseName: "Fischer (Mercury Datum) 1960"
};
exports.fschr60m = {
a: 6378155.0,
rf: 298.3,
ellipseName: "Fischer 1960"
};
exports.fschr68 = {
a: 6378150.0,
rf: 298.3,
ellipseName: "Fischer 1968"
};
exports.helmert = {
a: 6378200.0,
rf: 298.3,
ellipseName: "Helmert 1906"
};
exports.hough = {
a: 6378270.0,
rf: 297.0,
ellipseName: "Hough"
};
exports.intl = {
a: 6378388.0,
rf: 297.0,
ellipseName: "International 1909 (Hayford)"
};
exports.kaula = {
a: 6378163.0,
rf: 298.24,
ellipseName: "Kaula 1961"
};
exports.lerch = {
a: 6378139.0,
rf: 298.257,
ellipseName: "Lerch 1979"
};
exports.mprts = {
a: 6397300.0,
rf: 191.0,
ellipseName: "Maupertius 1738"
};
exports.new_intl = {
a: 6378157.5,
b: 6356772.2,
ellipseName: "New International 1967"
};
exports.plessis = {
a: 6376523.0,
rf: 6355863.0,
ellipseName: "Plessis 1817 (France)"
};
exports.krass = {
a: 6378245.0,
rf: 298.3,
ellipseName: "Krassovsky, 1942"
};
exports.SEasia = {
a: 6378155.0,
b: 6356773.3205,
ellipseName: "Southeast Asia"
};
exports.walbeck = {
a: 6376896.0,
b: 6355834.8467,
ellipseName: "Walbeck"
};
exports.WGS60 = {
a: 6378165.0,
rf: 298.3,
ellipseName: "WGS 60"
};
exports.WGS66 = {
a: 6378145.0,
rf: 298.25,
ellipseName: "WGS 66"
};
exports.WGS7 = {
a: 6378135.0,
rf: 298.26,
ellipseName: "WGS 72"
};
exports.WGS84 = {
a: 6378137.0,
rf: 298.257223563,
ellipseName: "WGS 84"
};
exports.sphere = {
a: 6370997.0,
b: 6370997.0,
ellipseName: "Normal Sphere (r=6370997)"
};
}, {}], 80: [function (require, module, exports) {
exports.greenwich = 0.0; //"0dE",
exports.lisbon = -9.131906111111; //"9d07'54.862\"W",
exports.paris = 2.337229166667; //"2d20'14.025\"E",
exports.bogota = -74.080916666667; //"74d04'51.3\"W",
exports.madrid = -3.687938888889; //"3d41'16.58\"W",
exports.rome = 12.452333333333; //"12d27'8.4\"E",
exports.bern = 7.439583333333; //"7d26'22.5\"E",
exports.jakarta = 106.807719444444; //"106d48'27.79\"E",
exports.ferro = -17.666666666667; //"17d40'W",
exports.brussels = 4.367975; //"4d22'4.71\"E",
exports.stockholm = 18.058277777778; //"18d3'29.8\"E",
exports.athens = 23.7163375; //"23d42'58.815\"E",
exports.oslo = 10.722916666667; //"10d43'22.5\"E"
}, {}], 81: [function (require, module, exports) {
exports.ft = { to_meter: 0.3048 };
exports['us-ft'] = { to_meter: 1200 / 3937 };
}, {}], 82: [function (require, module, exports) {
var proj = require('./Proj');
var transform = require('./transform');
var wgs84 = proj('WGS84');
function transformer(from, to, coords) {
var transformedArray;
if (Array.isArray(coords)) {
transformedArray = transform(from, to, coords);
if (coords.length === 3) {
return [transformedArray.x, transformedArray.y, transformedArray.z];
}
else {
return [transformedArray.x, transformedArray.y];
}
}
else {
return transform(from, to, coords);
}
}
function checkProj(item) {
if (item instanceof proj) {
return item;
}
if (item.oProj) {
return item.oProj;
}
return proj(item);
}
function proj4(fromProj, toProj, coord) {
fromProj = checkProj(fromProj);
var single = false;
var obj;
if (typeof toProj === 'undefined') {
toProj = fromProj;
fromProj = wgs84;
single = true;
}
else if (typeof toProj.x !== 'undefined' || Array.isArray(toProj)) {
coord = toProj;
toProj = fromProj;
fromProj = wgs84;
single = true;
}
toProj = checkProj(toProj);
if (coord) {
return transformer(fromProj, toProj, coord);
}
else {
obj = {
forward: function (coords) {
return transformer(fromProj, toProj, coords);
},
inverse: function (coords) {
return transformer(toProj, fromProj, coords);
}
};
if (single) {
obj.oProj = toProj;
}
return obj;
}
}
module.exports = proj4;
}, { "./Proj": 55, "./transform": 119}], 83: [function (require, module, exports) {
var HALF_PI = Math.PI / 2;
var PJD_3PARAM = 1;
var PJD_7PARAM = 2;
var PJD_GRIDSHIFT = 3;
var PJD_WGS84 = 4; // WGS84 or equivalent
var PJD_NODATUM = 5; // WGS84 or equivalent
var SEC_TO_RAD = 4.84813681109535993589914102357e-6;
var AD_C = 1.0026000;
var COS_67P5 = 0.38268343236508977;
var datum = function (proj) {
if (!(this instanceof datum)) {
return new datum(proj);
}
this.datum_type = PJD_WGS84; //default setting
if (!proj) {
return;
}
if (proj.datumCode && proj.datumCode === 'none') {
this.datum_type = PJD_NODATUM;
}
if (proj.datum_params) {
this.datum_params = proj.datum_params.map(parseFloat);
if (this.datum_params[0] !== 0 || this.datum_params[1] !== 0 || this.datum_params[2] !== 0) {
this.datum_type = PJD_3PARAM;
}
if (this.datum_params.length > 3) {
if (this.datum_params[3] !== 0 || this.datum_params[4] !== 0 || this.datum_params[5] !== 0 || this.datum_params[6] !== 0) {
this.datum_type = PJD_7PARAM;
this.datum_params[3] *= SEC_TO_RAD;
this.datum_params[4] *= SEC_TO_RAD;
this.datum_params[5] *= SEC_TO_RAD;
this.datum_params[6] = (this.datum_params[6] / 1000000.0) + 1.0;
}
}
}
// DGR 2011-03-21 : nadgrids support
this.datum_type = proj.grids ? PJD_GRIDSHIFT : this.datum_type;
this.a = proj.a; //datum object also uses these values
this.b = proj.b;
this.es = proj.es;
this.ep2 = proj.ep2;
if (this.datum_type === PJD_GRIDSHIFT) {
this.grids = proj.grids;
}
};
datum.prototype = {
/****************************************************************/
// cs_compare_datums()
// Returns TRUE if the two datums match, otherwise FALSE.
compare_datums: function (dest) {
if (this.datum_type !== dest.datum_type) {
return false; // false, datums are not equal
}
else if (this.a !== dest.a || Math.abs(this.es - dest.es) > 0.000000000050) {
// the tolerence for es is to ensure that GRS80 and WGS84
// are considered identical
return false;
}
else if (this.datum_type === PJD_3PARAM) {
return (this.datum_params[0] === dest.datum_params[0] && this.datum_params[1] === dest.datum_params[1] && this.datum_params[2] === dest.datum_params[2]);
}
else if (this.datum_type === PJD_7PARAM) {
return (this.datum_params[0] === dest.datum_params[0] && this.datum_params[1] === dest.datum_params[1] && this.datum_params[2] === dest.datum_params[2] && this.datum_params[3] === dest.datum_params[3] && this.datum_params[4] === dest.datum_params[4] && this.datum_params[5] === dest.datum_params[5] && this.datum_params[6] === dest.datum_params[6]);
}
else if (this.datum_type === PJD_GRIDSHIFT || dest.datum_type === PJD_GRIDSHIFT) {
//alert("ERROR: Grid shift transformations are not implemented.");
//return false
//DGR 2012-07-29 lazy ...
return this.nadgrids === dest.nadgrids;
}
else {
return true; // datums are equal
}
}, // cs_compare_datums()
/*
* The function Convert_Geodetic_To_Geocentric converts geodetic coordinates
* (latitude, longitude, and height) to geocentric coordinates (X, Y, Z),
* according to the current ellipsoid parameters.
*
* Latitude : Geodetic latitude in radians (input)
* Longitude : Geodetic longitude in radians (input)
* Height : Geodetic height, in meters (input)
* X : Calculated Geocentric X coordinate, in meters (output)
* Y : Calculated Geocentric Y coordinate, in meters (output)
* Z : Calculated Geocentric Z coordinate, in meters (output)
*
*/
geodetic_to_geocentric: function (p) {
var Longitude = p.x;
var Latitude = p.y;
var Height = p.z ? p.z : 0; //Z value not always supplied
var X; // output
var Y;
var Z;
var Error_Code = 0; // GEOCENT_NO_ERROR;
var Rn; /* Earth radius at location */
var Sin_Lat; /* Math.sin(Latitude) */
var Sin2_Lat; /* Square of Math.sin(Latitude) */
var Cos_Lat; /* Math.cos(Latitude) */
/*
** Don't blow up if Latitude is just a little out of the value
** range as it may just be a rounding issue. Also removed longitude
** test, it should be wrapped by Math.cos() and Math.sin(). NFW for PROJ.4, Sep/2001.
*/
if (Latitude < -HALF_PI && Latitude > -1.001 * HALF_PI) {
Latitude = -HALF_PI;
}
else if (Latitude > HALF_PI && Latitude < 1.001 * HALF_PI) {
Latitude = HALF_PI;
}
else if ((Latitude < -HALF_PI) || (Latitude > HALF_PI)) {
/* Latitude out of range */
//..reportError('geocent:lat out of range:' + Latitude);
return null;
}
if (Longitude > Math.PI) {
Longitude -= (2 * Math.PI);
}
Sin_Lat = Math.sin(Latitude);
Cos_Lat = Math.cos(Latitude);
Sin2_Lat = Sin_Lat * Sin_Lat;
Rn = this.a / (Math.sqrt(1.0e0 - this.es * Sin2_Lat));
X = (Rn + Height) * Cos_Lat * Math.cos(Longitude);
Y = (Rn + Height) * Cos_Lat * Math.sin(Longitude);
Z = ((Rn * (1 - this.es)) + Height) * Sin_Lat;
p.x = X;
p.y = Y;
p.z = Z;
return Error_Code;
}, // cs_geodetic_to_geocentric()
geocentric_to_geodetic: function (p) {
/* local defintions and variables */
/* end-criterium of loop, accuracy of sin(Latitude) */
var genau = 1e-12;
var genau2 = (genau * genau);
var maxiter = 30;
var P; /* distance between semi-minor axis and location */
var RR; /* distance between center and location */
var CT; /* sin of geocentric latitude */
var ST; /* cos of geocentric latitude */
var RX;
var RK;
var RN; /* Earth radius at location */
var CPHI0; /* cos of start or old geodetic latitude in iterations */
var SPHI0; /* sin of start or old geodetic latitude in iterations */
var CPHI; /* cos of searched geodetic latitude */
var SPHI; /* sin of searched geodetic latitude */
var SDPHI; /* end-criterium: addition-theorem of sin(Latitude(iter)-Latitude(iter-1)) */
var At_Pole; /* indicates location is in polar region */
var iter; /* # of continous iteration, max. 30 is always enough (s.a.) */
var X = p.x;
var Y = p.y;
var Z = p.z ? p.z : 0.0; //Z value not always supplied
var Longitude;
var Latitude;
var Height;
At_Pole = false;
P = Math.sqrt(X * X + Y * Y);
RR = Math.sqrt(X * X + Y * Y + Z * Z);
/* special cases for latitude and longitude */
if (P / this.a < genau) {
/* special case, if P=0. (X=0., Y=0.) */
At_Pole = true;
Longitude = 0.0;
/* if (X,Y,Z)=(0.,0.,0.) then Height becomes semi-minor axis
* of ellipsoid (=center of mass), Latitude becomes PI/2 */
if (RR / this.a < genau) {
Latitude = HALF_PI;
Height = -this.b;
return;
}
}
else {
/* ellipsoidal (geodetic) longitude
* interval: -PI < Longitude <= +PI */
Longitude = Math.atan2(Y, X);
}
/* --------------------------------------------------------------
* Following iterative algorithm was developped by
* "Institut for Erdmessung", University of Hannover, July 1988.
* Internet: www.ife.uni-hannover.de
* Iterative computation of CPHI,SPHI and Height.
* Iteration of CPHI and SPHI to 10**-12 radian resp.
* 2*10**-7 arcsec.
* --------------------------------------------------------------
*/
CT = Z / RR;
ST = P / RR;
RX = 1.0 / Math.sqrt(1.0 - this.es * (2.0 - this.es) * ST * ST);
CPHI0 = ST * (1.0 - this.es) * RX;
SPHI0 = CT * RX;
iter = 0;
/* loop to find sin(Latitude) resp. Latitude
* until |sin(Latitude(iter)-Latitude(iter-1))| < genau */
do {
iter++;
RN = this.a / Math.sqrt(1.0 - this.es * SPHI0 * SPHI0);
/* ellipsoidal (geodetic) height */
Height = P * CPHI0 + Z * SPHI0 - RN * (1.0 - this.es * SPHI0 * SPHI0);
RK = this.es * RN / (RN + Height);
RX = 1.0 / Math.sqrt(1.0 - RK * (2.0 - RK) * ST * ST);
CPHI = ST * (1.0 - RK) * RX;
SPHI = CT * RX;
SDPHI = SPHI * CPHI0 - CPHI * SPHI0;
CPHI0 = CPHI;
SPHI0 = SPHI;
}
while (SDPHI * SDPHI > genau2 && iter < maxiter);
/* ellipsoidal (geodetic) latitude */
Latitude = Math.atan(SPHI / Math.abs(CPHI));
p.x = Longitude;
p.y = Latitude;
p.z = Height;
return p;
}, // cs_geocentric_to_geodetic()
/** Convert_Geocentric_To_Geodetic
* The method used here is derived from 'An Improved Algorithm for
* Geocentric to Geodetic Coordinate Conversion', by Ralph Toms, Feb 1996
*/
geocentric_to_geodetic_noniter: function (p) {
var X = p.x;
var Y = p.y;
var Z = p.z ? p.z : 0; //Z value not always supplied
var Longitude;
var Latitude;
var Height;
var W; /* distance from Z axis */
var W2; /* square of distance from Z axis */
var T0; /* initial estimate of vertical component */
var T1; /* corrected estimate of vertical component */
var S0; /* initial estimate of horizontal component */
var S1; /* corrected estimate of horizontal component */
var Sin_B0; /* Math.sin(B0), B0 is estimate of Bowring aux variable */
var Sin3_B0; /* cube of Math.sin(B0) */
var Cos_B0; /* Math.cos(B0) */
var Sin_p1; /* Math.sin(phi1), phi1 is estimated latitude */
var Cos_p1; /* Math.cos(phi1) */
var Rn; /* Earth radius at location */
var Sum; /* numerator of Math.cos(phi1) */
var At_Pole; /* indicates location is in polar region */
X = parseFloat(X); // cast from string to float
Y = parseFloat(Y);
Z = parseFloat(Z);
At_Pole = false;
if (X !== 0.0) {
Longitude = Math.atan2(Y, X);
}
else {
if (Y > 0) {
Longitude = HALF_PI;
}
else if (Y < 0) {
Longitude = -HALF_PI;
}
else {
At_Pole = true;
Longitude = 0.0;
if (Z > 0.0) { /* north pole */
Latitude = HALF_PI;
}
else if (Z < 0.0) { /* south pole */
Latitude = -HALF_PI;
}
else { /* center of earth */
Latitude = HALF_PI;
Height = -this.b;
return;
}
}
}
W2 = X * X + Y * Y;
W = Math.sqrt(W2);
T0 = Z * AD_C;
S0 = Math.sqrt(T0 * T0 + W2);
Sin_B0 = T0 / S0;
Cos_B0 = W / S0;
Sin3_B0 = Sin_B0 * Sin_B0 * Sin_B0;
T1 = Z + this.b * this.ep2 * Sin3_B0;
Sum = W - this.a * this.es * Cos_B0 * Cos_B0 * Cos_B0;
S1 = Math.sqrt(T1 * T1 + Sum * Sum);
Sin_p1 = T1 / S1;
Cos_p1 = Sum / S1;
Rn = this.a / Math.sqrt(1.0 - this.es * Sin_p1 * Sin_p1);
if (Cos_p1 >= COS_67P5) {
Height = W / Cos_p1 - Rn;
}
else if (Cos_p1 <= -COS_67P5) {
Height = W / -Cos_p1 - Rn;
}
else {
Height = Z / Sin_p1 + Rn * (this.es - 1.0);
}
if (At_Pole === false) {
Latitude = Math.atan(Sin_p1 / Cos_p1);
}
p.x = Longitude;
p.y = Latitude;
p.z = Height;
return p;
}, // geocentric_to_geodetic_noniter()
/****************************************************************/
// pj_geocentic_to_wgs84( p )
// p = point to transform in geocentric coordinates (x,y,z)
geocentric_to_wgs84: function (p) {
if (this.datum_type === PJD_3PARAM) {
// if( x[io] === HUGE_VAL )
// continue;
p.x += this.datum_params[0];
p.y += this.datum_params[1];
p.z += this.datum_params[2];
}
else if (this.datum_type === PJD_7PARAM) {
var Dx_BF = this.datum_params[0];
var Dy_BF = this.datum_params[1];
var Dz_BF = this.datum_params[2];
var Rx_BF = this.datum_params[3];
var Ry_BF = this.datum_params[4];
var Rz_BF = this.datum_params[5];
var M_BF = this.datum_params[6];
// if( x[io] === HUGE_VAL )
// continue;
var x_out = M_BF * (p.x - Rz_BF * p.y + Ry_BF * p.z) + Dx_BF;
var y_out = M_BF * (Rz_BF * p.x + p.y - Rx_BF * p.z) + Dy_BF;
var z_out = M_BF * (-Ry_BF * p.x + Rx_BF * p.y + p.z) + Dz_BF;
p.x = x_out;
p.y = y_out;
p.z = z_out;
}
}, // cs_geocentric_to_wgs84
/****************************************************************/
// pj_geocentic_from_wgs84()
// coordinate system definition,
// point to transform in geocentric coordinates (x,y,z)
geocentric_from_wgs84: function (p) {
if (this.datum_type === PJD_3PARAM) {
//if( x[io] === HUGE_VAL )
// continue;
p.x -= this.datum_params[0];
p.y -= this.datum_params[1];
p.z -= this.datum_params[2];
}
else if (this.datum_type === PJD_7PARAM) {
var Dx_BF = this.datum_params[0];
var Dy_BF = this.datum_params[1];
var Dz_BF = this.datum_params[2];
var Rx_BF = this.datum_params[3];
var Ry_BF = this.datum_params[4];
var Rz_BF = this.datum_params[5];
var M_BF = this.datum_params[6];
var x_tmp = (p.x - Dx_BF) / M_BF;
var y_tmp = (p.y - Dy_BF) / M_BF;
var z_tmp = (p.z - Dz_BF) / M_BF;
//if( x[io] === HUGE_VAL )
// continue;
p.x = x_tmp + Rz_BF * y_tmp - Ry_BF * z_tmp;
p.y = -Rz_BF * x_tmp + y_tmp + Rx_BF * z_tmp;
p.z = Ry_BF * x_tmp - Rx_BF * y_tmp + z_tmp;
} //cs_geocentric_from_wgs84()
}
};
/** point object, nothing fancy, just allows values to be
passed back and forth by reference rather than by value.
Other point classes may be used as long as they have
x and y properties, which will get modified in the transform method.
*/
module.exports = datum;
}, {}], 84: [function (require, module, exports) {
var PJD_3PARAM = 1;
var PJD_7PARAM = 2;
var PJD_GRIDSHIFT = 3;
var PJD_NODATUM = 5; // WGS84 or equivalent
var SRS_WGS84_SEMIMAJOR = 6378137; // only used in grid shift transforms
var SRS_WGS84_ESQUARED = 0.006694379990141316; //DGR: 2012-07-29
module.exports = function (source, dest, point) {
var wp, i, l;
function checkParams(fallback) {
return (fallback === PJD_3PARAM || fallback === PJD_7PARAM);
}
// Short cut if the datums are identical.
if (source.compare_datums(dest)) {
return point; // in this case, zero is sucess,
// whereas cs_compare_datums returns 1 to indicate TRUE
// confusing, should fix this
}
// Explicitly skip datum transform by setting 'datum=none' as parameter for either source or dest
if (source.datum_type === PJD_NODATUM || dest.datum_type === PJD_NODATUM) {
return point;
}
//DGR: 2012-07-29 : add nadgrids support (begin)
var src_a = source.a;
var src_es = source.es;
var dst_a = dest.a;
var dst_es = dest.es;
var fallback = source.datum_type;
// If this datum requires grid shifts, then apply it to geodetic coordinates.
if (fallback === PJD_GRIDSHIFT) {
if (this.apply_gridshift(source, 0, point) === 0) {
source.a = SRS_WGS84_SEMIMAJOR;
source.es = SRS_WGS84_ESQUARED;
}
else {
// try 3 or 7 params transformation or nothing ?
if (!source.datum_params) {
source.a = src_a;
source.es = source.es;
return point;
}
wp = 1;
for (i = 0, l = source.datum_params.length; i < l; i++) {
wp *= source.datum_params[i];
}
if (wp === 0) {
source.a = src_a;
source.es = source.es;
return point;
}
if (source.datum_params.length > 3) {
fallback = PJD_7PARAM;
}
else {
fallback = PJD_3PARAM;
}
}
}
if (dest.datum_type === PJD_GRIDSHIFT) {
dest.a = SRS_WGS84_SEMIMAJOR;
dest.es = SRS_WGS84_ESQUARED;
}
// Do we need to go through geocentric coordinates?
if (source.es !== dest.es || source.a !== dest.a || checkParams(fallback) || checkParams(dest.datum_type)) {
//DGR: 2012-07-29 : add nadgrids support (end)
// Convert to geocentric coordinates.
source.geodetic_to_geocentric(point);
// CHECK_RETURN;
// Convert between datums
if (checkParams(source.datum_type)) {
source.geocentric_to_wgs84(point);
// CHECK_RETURN;
}
if (checkParams(dest.datum_type)) {
dest.geocentric_from_wgs84(point);
// CHECK_RETURN;
}
// Convert back to geodetic coordinates
dest.geocentric_to_geodetic(point);
// CHECK_RETURN;
}
// Apply grid shift to destination if required
if (dest.datum_type === PJD_GRIDSHIFT) {
this.apply_gridshift(dest, 1, point);
// CHECK_RETURN;
}
source.a = src_a;
source.es = src_es;
dest.a = dst_a;
dest.es = dst_es;
return point;
};
}, {}], 85: [function (require, module, exports) {
var globals = require('./global');
var parseProj = require('./projString');
var wkt = require('./wkt');
function defs(name) {
/*global console*/
var that = this;
if (arguments.length === 2) {
var def = arguments[1];
if (typeof def === 'string') {
if (def.charAt(0) === '+') {
defs[name] = parseProj(arguments[1]);
}
else {
defs[name] = wkt(arguments[1]);
}
} else {
defs[name] = def;
}
}
else if (arguments.length === 1) {
if (Array.isArray(name)) {
return name.map(function (v) {
if (Array.isArray(v)) {
defs.apply(that, v);
}
else {
defs(v);
}
});
}
else if (typeof name === 'string') {
if (name in defs) {
return defs[name];
}
}
else if ('EPSG' in name) {
defs['EPSG:' + name.EPSG] = name;
}
else if ('ESRI' in name) {
defs['ESRI:' + name.ESRI] = name;
}
else if ('IAU2000' in name) {
defs['IAU2000:' + name.IAU2000] = name;
}
else {
console.log(name);
}
return;
}
}
globals(defs);
module.exports = defs;
}, { "./global": 88, "./projString": 92, "./wkt": 120}], 86: [function (require, module, exports) {
var Datum = require('./constants/Datum');
var Ellipsoid = require('./constants/Ellipsoid');
var extend = require('./extend');
var datum = require('./datum');
var EPSLN = 1.0e-10;
// ellipoid pj_set_ell.c
var SIXTH = 0.1666666666666666667;
/* 1/6 */
var RA4 = 0.04722222222222222222;
/* 17/360 */
var RA6 = 0.02215608465608465608;
module.exports = function (json) {
// DGR 2011-03-20 : nagrids -> nadgrids
if (json.datumCode && json.datumCode !== 'none') {
var datumDef = Datum[json.datumCode];
if (datumDef) {
json.datum_params = datumDef.towgs84 ? datumDef.towgs84.split(',') : null;
json.ellps = datumDef.ellipse;
json.datumName = datumDef.datumName ? datumDef.datumName : json.datumCode;
}
}
if (!json.a) { // do we have an ellipsoid?
var ellipse = Ellipsoid[json.ellps] ? Ellipsoid[json.ellps] : Ellipsoid.WGS84;
extend(json, ellipse);
}
if (json.rf && !json.b) {
json.b = (1.0 - 1.0 / json.rf) * json.a;
}
if (json.rf === 0 || Math.abs(json.a - json.b) < EPSLN) {
json.sphere = true;
json.b = json.a;
}
json.a2 = json.a * json.a; // used in geocentric
json.b2 = json.b * json.b; // used in geocentric
json.es = (json.a2 - json.b2) / json.a2; // e ^ 2
json.e = Math.sqrt(json.es); // eccentricity
if (json.R_A) {
json.a *= 1 - json.es * (SIXTH + json.es * (RA4 + json.es * RA6));
json.a2 = json.a * json.a;
json.b2 = json.b * json.b;
json.es = 0;
}
json.ep2 = (json.a2 - json.b2) / json.b2; // used in geocentric
if (!json.k0) {
json.k0 = 1.0; //default value
}
//DGR 2010-11-12: axis
if (!json.axis) {
json.axis = "enu";
}
if (!json.datum) {
json.datum = datum(json);
}
return json;
};
}, { "./constants/Datum": 78, "./constants/Ellipsoid": 79, "./datum": 83, "./extend": 87}], 87: [function (require, module, exports) {
module.exports = function (destination, source) {
destination = destination || {};
var value, property;
if (!source) {
return destination;
}
for (property in source) {
value = source[property];
if (value !== undefined) {
destination[property] = value;
}
}
return destination;
};
}, {}], 88: [function (require, module, exports) {
module.exports = function (defs) {
defs('EPSG:4326', "+title=WGS 84 (long/lat) +proj=longlat +ellps=WGS84 +datum=WGS84 +units=degrees");
defs('EPSG:4269', "+title=NAD83 (long/lat) +proj=longlat +a=6378137.0 +b=6356752.31414036 +ellps=GRS80 +datum=NAD83 +units=degrees");
defs('EPSG:3857', "+title=WGS 84 / Pseudo-Mercator +proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgrids=@null +no_defs");
defs.WGS84 = defs['EPSG:4326'];
defs['EPSG:3785'] = defs['EPSG:3857']; // maintain backward compat, official code is 3857
defs.GOOGLE = defs['EPSG:3857'];
defs['EPSG:900913'] = defs['EPSG:3857'];
defs['EPSG:102113'] = defs['EPSG:3857'];
};
}, {}], 89: [function (require, module, exports) {
var projs = [
require('./projections/tmerc'),
require('./projections/utm'),
require('./projections/sterea'),
require('./projections/stere'),
require('./projections/somerc'),
require('./projections/omerc'),
require('./projections/lcc'),
require('./projections/krovak'),
require('./projections/cass'),
require('./projections/laea'),
require('./projections/aea'),
require('./projections/gnom'),
require('./projections/cea'),
require('./projections/eqc'),
require('./projections/poly'),
require('./projections/nzmg'),
require('./projections/mill'),
require('./projections/sinu'),
require('./projections/moll'),
require('./projections/eqdc'),
require('./projections/vandg'),
require('./projections/aeqd')
];
module.exports = function (proj4) {
projs.forEach(function (proj) {
proj4.Proj.projections.add(proj);
});
};
}, { "./projections/aea": 94, "./projections/aeqd": 95, "./projections/cass": 96, "./projections/cea": 97, "./projections/eqc": 98, "./projections/eqdc": 99, "./projections/gnom": 101, "./projections/krovak": 102, "./projections/laea": 103, "./projections/lcc": 104, "./projections/mill": 107, "./projections/moll": 108, "./projections/nzmg": 109, "./projections/omerc": 110, "./projections/poly": 111, "./projections/sinu": 112, "./projections/somerc": 113, "./projections/stere": 114, "./projections/sterea": 115, "./projections/tmerc": 116, "./projections/utm": 117, "./projections/vandg": 118}], 90: [function (require, module, exports) {
var proj4 = require('./core');
proj4.defaultDatum = 'WGS84'; //default datum
proj4.Proj = require('./Proj');
proj4.WGS84 = new proj4.Proj('WGS84');
proj4.Point = require('./Point');
proj4.toPoint = require("./common/toPoint");
proj4.defs = require('./defs');
proj4.transform = require('./transform');
proj4.mgrs = require('mgrs');
proj4.version = require('../package.json').version;
require('./includedProjections')(proj4);
module.exports = proj4;
}, { "../package.json": 121, "./Point": 54, "./Proj": 55, "./common/toPoint": 76, "./core": 82, "./defs": 85, "./includedProjections": 89, "./transform": 119, "mgrs": 36}], 91: [function (require, module, exports) {
var defs = require('./defs');
var wkt = require('./wkt');
var projStr = require('./projString');
function testObj(code) {
return typeof code === 'string';
}
function testDef(code) {
return code in defs;
}
function testWKT(code) {
var codeWords = ['GEOGCS', 'GEOCCS', 'PROJCS', 'LOCAL_CS'];
return codeWords.reduce(function (a, b) {
return a + 1 + code.indexOf(b);
}, 0);
}
function testProj(code) {
return code[0] === '+';
}
function parse(code) {
if (testObj(code)) {
//check to see if this is a WKT string
if (testDef(code)) {
return defs[code];
}
else if (testWKT(code)) {
return wkt(code);
}
else if (testProj(code)) {
return projStr(code);
}
} else {
return code;
}
}
module.exports = parse;
}, { "./defs": 85, "./projString": 92, "./wkt": 120}], 92: [function (require, module, exports) {
var D2R = 0.01745329251994329577;
var PrimeMeridian = require('./constants/PrimeMeridian');
var units = require('./constants/units');
module.exports = function (defData) {
var self = {};
var paramObj = {};
defData.split("+").map(function (v) {
return v.trim();
}).filter(function (a) {
return a;
}).forEach(function (a) {
var split = a.split("=");
split.push(true);
paramObj[split[0].toLowerCase()] = split[1];
});
var paramName, paramVal, paramOutname;
var params = {
proj: 'projName',
datum: 'datumCode',
rf: function (v) {
self.rf = parseFloat(v);
},
lat_0: function (v) {
self.lat0 = v * D2R;
},
lat_1: function (v) {
self.lat1 = v * D2R;
},
lat_2: function (v) {
self.lat2 = v * D2R;
},
lat_ts: function (v) {
self.lat_ts = v * D2R;
},
lon_0: function (v) {
self.long0 = v * D2R;
},
lon_1: function (v) {
self.long1 = v * D2R;
},
lon_2: function (v) {
self.long2 = v * D2R;
},
alpha: function (v) {
self.alpha = parseFloat(v) * D2R;
},
lonc: function (v) {
self.longc = v * D2R;
},
x_0: function (v) {
self.x0 = parseFloat(v);
},
y_0: function (v) {
self.y0 = parseFloat(v);
},
k_0: function (v) {
self.k0 = parseFloat(v);
},
k: function (v) {
self.k0 = parseFloat(v);
},
a: function (v) {
self.a = parseFloat(v);
},
b: function (v) {
self.b = parseFloat(v);
},
r_a: function () {
self.R_A = true;
},
zone: function (v) {
self.zone = parseInt(v, 10);
},
south: function () {
self.utmSouth = true;
},
towgs84: function (v) {
self.datum_params = v.split(",").map(function (a) {
return parseFloat(a);
});
},
to_meter: function (v) {
self.to_meter = parseFloat(v);
},
units: function (v) {
self.units = v;
if (units[v]) {
self.to_meter = units[v].to_meter;
}
},
from_greenwich: function (v) {
self.from_greenwich = v * D2R;
},
pm: function (v) {
self.from_greenwich = (PrimeMeridian[v] ? PrimeMeridian[v] : parseFloat(v)) * D2R;
},
nadgrids: function (v) {
if (v === '@null') {
self.datumCode = 'none';
}
else {
self.nadgrids = v;
}
},
axis: function (v) {
var legalAxis = "ewnsud";
if (v.length === 3 && legalAxis.indexOf(v.substr(0, 1)) !== -1 && legalAxis.indexOf(v.substr(1, 1)) !== -1 && legalAxis.indexOf(v.substr(2, 1)) !== -1) {
self.axis = v;
}
}
};
for (paramName in paramObj) {
paramVal = paramObj[paramName];
if (paramName in params) {
paramOutname = params[paramName];
if (typeof paramOutname === 'function') {
paramOutname(paramVal);
}
else {
self[paramOutname] = paramVal;
}
}
else {
self[paramName] = paramVal;
}
}
if (typeof self.datumCode === 'string' && self.datumCode !== "WGS84") {
self.datumCode = self.datumCode.toLowerCase();
}
return self;
};
}, { "./constants/PrimeMeridian": 80, "./constants/units": 81}], 93: [function (require, module, exports) {
var projs = [
require('./projections/merc'),
require('./projections/longlat')
];
var names = {};
var projStore = [];
function add(proj, i) {
var len = projStore.length;
if (!proj.names) {
console.log(i);
return true;
}
projStore[len] = proj;
proj.names.forEach(function (n) {
names[n.toLowerCase()] = len;
});
return this;
}
exports.add = add;
exports.get = function (name) {
if (!name) {
return false;
}
var n = name.toLowerCase();
if (typeof names[n] !== 'undefined' && projStore[names[n]]) {
return projStore[names[n]];
}
};
exports.start = function () {
projs.forEach(add);
};
}, { "./projections/longlat": 105, "./projections/merc": 106}], 94: [function (require, module, exports) {
var EPSLN = 1.0e-10;
var msfnz = require('../common/msfnz');
var qsfnz = require('../common/qsfnz');
var adjust_lon = require('../common/adjust_lon');
var asinz = require('../common/asinz');
exports.init = function () {
if (Math.abs(this.lat1 + this.lat2) < EPSLN) {
return;
}
this.temp = this.b / this.a;
this.es = 1 - Math.pow(this.temp, 2);
this.e3 = Math.sqrt(this.es);
this.sin_po = Math.sin(this.lat1);
this.cos_po = Math.cos(this.lat1);
this.t1 = this.sin_po;
this.con = this.sin_po;
this.ms1 = msfnz(this.e3, this.sin_po, this.cos_po);
this.qs1 = qsfnz(this.e3, this.sin_po, this.cos_po);
this.sin_po = Math.sin(this.lat2);
this.cos_po = Math.cos(this.lat2);
this.t2 = this.sin_po;
this.ms2 = msfnz(this.e3, this.sin_po, this.cos_po);
this.qs2 = qsfnz(this.e3, this.sin_po, this.cos_po);
this.sin_po = Math.sin(this.lat0);
this.cos_po = Math.cos(this.lat0);
this.t3 = this.sin_po;
this.qs0 = qsfnz(this.e3, this.sin_po, this.cos_po);
if (Math.abs(this.lat1 - this.lat2) > EPSLN) {
this.ns0 = (this.ms1 * this.ms1 - this.ms2 * this.ms2) / (this.qs2 - this.qs1);
}
else {
this.ns0 = this.con;
}
this.c = this.ms1 * this.ms1 + this.ns0 * this.qs1;
this.rh = this.a * Math.sqrt(this.c - this.ns0 * this.qs0) / this.ns0;
};
/* Albers Conical Equal Area forward equations--mapping lat,long to x,y
-------------------------------------------------------------------*/
exports.forward = function (p) {
var lon = p.x;
var lat = p.y;
this.sin_phi = Math.sin(lat);
this.cos_phi = Math.cos(lat);
var qs = qsfnz(this.e3, this.sin_phi, this.cos_phi);
var rh1 = this.a * Math.sqrt(this.c - this.ns0 * qs) / this.ns0;
var theta = this.ns0 * adjust_lon(lon - this.long0);
var x = rh1 * Math.sin(theta) + this.x0;
var y = this.rh - rh1 * Math.cos(theta) + this.y0;
p.x = x;
p.y = y;
return p;
};
exports.inverse = function (p) {
var rh1, qs, con, theta, lon, lat;
p.x -= this.x0;
p.y = this.rh - p.y + this.y0;
if (this.ns0 >= 0) {
rh1 = Math.sqrt(p.x * p.x + p.y * p.y);
con = 1;
}
else {
rh1 = -Math.sqrt(p.x * p.x + p.y * p.y);
con = -1;
}
theta = 0;
if (rh1 !== 0) {
theta = Math.atan2(con * p.x, con * p.y);
}
con = rh1 * this.ns0 / this.a;
if (this.sphere) {
lat = Math.asin((this.c - con * con) / (2 * this.ns0));
}
else {
qs = (this.c - con * con) / this.ns0;
lat = this.phi1z(this.e3, qs);
}
lon = adjust_lon(theta / this.ns0 + this.long0);
p.x = lon;
p.y = lat;
return p;
};
/* Function to compute phi1, the latitude for the inverse of the
Albers Conical Equal-Area projection.
-------------------------------------------*/
exports.phi1z = function (eccent, qs) {
var sinphi, cosphi, con, com, dphi;
var phi = asinz(0.5 * qs);
if (eccent < EPSLN) {
return phi;
}
var eccnts = eccent * eccent;
for (var i = 1; i <= 25; i++) {
sinphi = Math.sin(phi);
cosphi = Math.cos(phi);
con = eccent * sinphi;
com = 1 - con * con;
dphi = 0.5 * com * com / cosphi * (qs / (1 - eccnts) - sinphi / com + 0.5 / eccent * Math.log((1 - con) / (1 + con)));
phi = phi + dphi;
if (Math.abs(dphi) <= 1e-7) {
return phi;
}
}
return null;
};
exports.names = ["Albers_Conic_Equal_Area", "Albers", "aea"];
}, { "../common/adjust_lon": 58, "../common/asinz": 59, "../common/msfnz": 68, "../common/qsfnz": 73}], 95: [function (require, module, exports) {
var adjust_lon = require('../common/adjust_lon');
var HALF_PI = Math.PI / 2;
var EPSLN = 1.0e-10;
var mlfn = require('../common/mlfn');
var e0fn = require('../common/e0fn');
var e1fn = require('../common/e1fn');
var e2fn = require('../common/e2fn');
var e3fn = require('../common/e3fn');
var gN = require('../common/gN');
var asinz = require('../common/asinz');
var imlfn = require('../common/imlfn');
exports.init = function () {
this.sin_p12 = Math.sin(this.lat0);
this.cos_p12 = Math.cos(this.lat0);
};
exports.forward = function (p) {
var lon = p.x;
var lat = p.y;
var sinphi = Math.sin(p.y);
var cosphi = Math.cos(p.y);
var dlon = adjust_lon(lon - this.long0);
var e0, e1, e2, e3, Mlp, Ml, tanphi, Nl1, Nl, psi, Az, G, H, GH, Hs, c, kp, cos_c, s, s2, s3, s4, s5;
if (this.sphere) {
if (Math.abs(this.sin_p12 - 1) <= EPSLN) {
//North Pole case
p.x = this.x0 + this.a * (HALF_PI - lat) * Math.sin(dlon);
p.y = this.y0 - this.a * (HALF_PI - lat) * Math.cos(dlon);
return p;
}
else if (Math.abs(this.sin_p12 + 1) <= EPSLN) {
//South Pole case
p.x = this.x0 + this.a * (HALF_PI + lat) * Math.sin(dlon);
p.y = this.y0 + this.a * (HALF_PI + lat) * Math.cos(dlon);
return p;
}
else {
//default case
cos_c = this.sin_p12 * sinphi + this.cos_p12 * cosphi * Math.cos(dlon);
c = Math.acos(cos_c);
kp = c / Math.sin(c);
p.x = this.x0 + this.a * kp * cosphi * Math.sin(dlon);
p.y = this.y0 + this.a * kp * (this.cos_p12 * sinphi - this.sin_p12 * cosphi * Math.cos(dlon));
return p;
}
}
else {
e0 = e0fn(this.es);
e1 = e1fn(this.es);
e2 = e2fn(this.es);
e3 = e3fn(this.es);
if (Math.abs(this.sin_p12 - 1) <= EPSLN) {
//North Pole case
Mlp = this.a * mlfn(e0, e1, e2, e3, HALF_PI);
Ml = this.a * mlfn(e0, e1, e2, e3, lat);
p.x = this.x0 + (Mlp - Ml) * Math.sin(dlon);
p.y = this.y0 - (Mlp - Ml) * Math.cos(dlon);
return p;
}
else if (Math.abs(this.sin_p12 + 1) <= EPSLN) {
//South Pole case
Mlp = this.a * mlfn(e0, e1, e2, e3, HALF_PI);
Ml = this.a * mlfn(e0, e1, e2, e3, lat);
p.x = this.x0 + (Mlp + Ml) * Math.sin(dlon);
p.y = this.y0 + (Mlp + Ml) * Math.cos(dlon);
return p;
}
else {
//Default case
tanphi = sinphi / cosphi;
Nl1 = gN(this.a, this.e, this.sin_p12);
Nl = gN(this.a, this.e, sinphi);
psi = Math.atan((1 - this.es) * tanphi + this.es * Nl1 * this.sin_p12 / (Nl * cosphi));
Az = Math.atan2(Math.sin(dlon), this.cos_p12 * Math.tan(psi) - this.sin_p12 * Math.cos(dlon));
if (Az === 0) {
s = Math.asin(this.cos_p12 * Math.sin(psi) - this.sin_p12 * Math.cos(psi));
}
else if (Math.abs(Math.abs(Az) - Math.PI) <= EPSLN) {
s = -Math.asin(this.cos_p12 * Math.sin(psi) - this.sin_p12 * Math.cos(psi));
}
else {
s = Math.asin(Math.sin(dlon) * Math.cos(psi) / Math.sin(Az));
}
G = this.e * this.sin_p12 / Math.sqrt(1 - this.es);
H = this.e * this.cos_p12 * Math.cos(Az) / Math.sqrt(1 - this.es);
GH = G * H;
Hs = H * H;
s2 = s * s;
s3 = s2 * s;
s4 = s3 * s;
s5 = s4 * s;
c = Nl1 * s * (1 - s2 * Hs * (1 - Hs) / 6 + s3 / 8 * GH * (1 - 2 * Hs) + s4 / 120 * (Hs * (4 - 7 * Hs) - 3 * G * G * (1 - 7 * Hs)) - s5 / 48 * GH);
p.x = this.x0 + c * Math.sin(Az);
p.y = this.y0 + c * Math.cos(Az);
return p;
}
}
};
exports.inverse = function (p) {
p.x -= this.x0;
p.y -= this.y0;
var rh, z, sinz, cosz, lon, lat, con, e0, e1, e2, e3, Mlp, M, N1, psi, Az, cosAz, tmp, A, B, D, Ee, F;
if (this.sphere) {
rh = Math.sqrt(p.x * p.x + p.y * p.y);
if (rh > (2 * HALF_PI * this.a)) {
return;
}
z = rh / this.a;
sinz = Math.sin(z);
cosz = Math.cos(z);
lon = this.long0;
if (Math.abs(rh) <= EPSLN) {
lat = this.lat0;
}
else {
lat = asinz(cosz * this.sin_p12 + (p.y * sinz * this.cos_p12) / rh);
con = Math.abs(this.lat0) - HALF_PI;
if (Math.abs(con) <= EPSLN) {
if (this.lat0 >= 0) {
lon = adjust_lon(this.long0 + Math.atan2(p.x, -p.y));
}
else {
lon = adjust_lon(this.long0 - Math.atan2(-p.x, p.y));
}
}
else {
/*con = cosz - this.sin_p12 * Math.sin(lat);
if ((Math.abs(con) < EPSLN) && (Math.abs(p.x) < EPSLN)) {
//no-op, just keep the lon value as is
} else {
var temp = Math.atan2((p.x * sinz * this.cos_p12), (con * rh));
lon = adjust_lon(this.long0 + Math.atan2((p.x * sinz * this.cos_p12), (con * rh)));
}*/
lon = adjust_lon(this.long0 + Math.atan2(p.x * sinz, rh * this.cos_p12 * cosz - p.y * this.sin_p12 * sinz));
}
}
p.x = lon;
p.y = lat;
return p;
}
else {
e0 = e0fn(this.es);
e1 = e1fn(this.es);
e2 = e2fn(this.es);
e3 = e3fn(this.es);
if (Math.abs(this.sin_p12 - 1) <= EPSLN) {
//North pole case
Mlp = this.a * mlfn(e0, e1, e2, e3, HALF_PI);
rh = Math.sqrt(p.x * p.x + p.y * p.y);
M = Mlp - rh;
lat = imlfn(M / this.a, e0, e1, e2, e3);
lon = adjust_lon(this.long0 + Math.atan2(p.x, -1 * p.y));
p.x = lon;
p.y = lat;
return p;
}
else if (Math.abs(this.sin_p12 + 1) <= EPSLN) {
//South pole case
Mlp = this.a * mlfn(e0, e1, e2, e3, HALF_PI);
rh = Math.sqrt(p.x * p.x + p.y * p.y);
M = rh - Mlp;
lat = imlfn(M / this.a, e0, e1, e2, e3);
lon = adjust_lon(this.long0 + Math.atan2(p.x, p.y));
p.x = lon;
p.y = lat;
return p;
}
else {
//default case
rh = Math.sqrt(p.x * p.x + p.y * p.y);
Az = Math.atan2(p.x, p.y);
N1 = gN(this.a, this.e, this.sin_p12);
cosAz = Math.cos(Az);
tmp = this.e * this.cos_p12 * cosAz;
A = -tmp * tmp / (1 - this.es);
B = 3 * this.es * (1 - A) * this.sin_p12 * this.cos_p12 * cosAz / (1 - this.es);
D = rh / N1;
Ee = D - A * (1 + A) * Math.pow(D, 3) / 6 - B * (1 + 3 * A) * Math.pow(D, 4) / 24;
F = 1 - A * Ee * Ee / 2 - D * Ee * Ee * Ee / 6;
psi = Math.asin(this.sin_p12 * Math.cos(Ee) + this.cos_p12 * Math.sin(Ee) * cosAz);
lon = adjust_lon(this.long0 + Math.asin(Math.sin(Az) * Math.sin(Ee) / Math.cos(psi)));
lat = Math.atan((1 - this.es * F * this.sin_p12 / Math.sin(psi)) * Math.tan(psi) / (1 - this.es));
p.x = lon;
p.y = lat;
return p;
}
}
};
exports.names = ["Azimuthal_Equidistant", "aeqd"];
}, { "../common/adjust_lon": 58, "../common/asinz": 59, "../common/e0fn": 60, "../common/e1fn": 61, "../common/e2fn": 62, "../common/e3fn": 63, "../common/gN": 64, "../common/imlfn": 65, "../common/mlfn": 67}], 96: [function (require, module, exports) {
var mlfn = require('../common/mlfn');
var e0fn = require('../common/e0fn');
var e1fn = require('../common/e1fn');
var e2fn = require('../common/e2fn');
var e3fn = require('../common/e3fn');
var gN = require('../common/gN');
var adjust_lon = require('../common/adjust_lon');
var adjust_lat = require('../common/adjust_lat');
var imlfn = require('../common/imlfn');
var HALF_PI = Math.PI / 2;
var EPSLN = 1.0e-10;
exports.init = function () {
if (!this.sphere) {
this.e0 = e0fn(this.es);
this.e1 = e1fn(this.es);
this.e2 = e2fn(this.es);
this.e3 = e3fn(this.es);
this.ml0 = this.a * mlfn(this.e0, this.e1, this.e2, this.e3, this.lat0);
}
};
/* Cassini forward equations--mapping lat,long to x,y
-----------------------------------------------------------------------*/
exports.forward = function (p) {
/* Forward equations
-----------------*/
var x, y;
var lam = p.x;
var phi = p.y;
lam = adjust_lon(lam - this.long0);
if (this.sphere) {
x = this.a * Math.asin(Math.cos(phi) * Math.sin(lam));
y = this.a * (Math.atan2(Math.tan(phi), Math.cos(lam)) - this.lat0);
}
else {
//ellipsoid
var sinphi = Math.sin(phi);
var cosphi = Math.cos(phi);
var nl = gN(this.a, this.e, sinphi);
var tl = Math.tan(phi) * Math.tan(phi);
var al = lam * Math.cos(phi);
var asq = al * al;
var cl = this.es * cosphi * cosphi / (1 - this.es);
var ml = this.a * mlfn(this.e0, this.e1, this.e2, this.e3, phi);
x = nl * al * (1 - asq * tl * (1 / 6 - (8 - tl + 8 * cl) * asq / 120));
y = ml - this.ml0 + nl * sinphi / cosphi * asq * (0.5 + (5 - tl + 6 * cl) * asq / 24);
}
p.x = x + this.x0;
p.y = y + this.y0;
return p;
};
/* Inverse equations
-----------------*/
exports.inverse = function (p) {
p.x -= this.x0;
p.y -= this.y0;
var x = p.x / this.a;
var y = p.y / this.a;
var phi, lam;
if (this.sphere) {
var dd = y + this.lat0;
phi = Math.asin(Math.sin(dd) * Math.cos(x));
lam = Math.atan2(Math.tan(x), Math.cos(dd));
}
else {
/* ellipsoid */
var ml1 = this.ml0 / this.a + y;
var phi1 = imlfn(ml1, this.e0, this.e1, this.e2, this.e3);
if (Math.abs(Math.abs(phi1) - HALF_PI) <= EPSLN) {
p.x = this.long0;
p.y = HALF_PI;
if (y < 0) {
p.y *= -1;
}
return p;
}
var nl1 = gN(this.a, this.e, Math.sin(phi1));
var rl1 = nl1 * nl1 * nl1 / this.a / this.a * (1 - this.es);
var tl1 = Math.pow(Math.tan(phi1), 2);
var dl = x * this.a / nl1;
var dsq = dl * dl;
phi = phi1 - nl1 * Math.tan(phi1) / rl1 * dl * dl * (0.5 - (1 + 3 * tl1) * dl * dl / 24);
lam = dl * (1 - dsq * (tl1 / 3 + (1 + 3 * tl1) * tl1 * dsq / 15)) / Math.cos(phi1);
}
p.x = adjust_lon(lam + this.long0);
p.y = adjust_lat(phi);
return p;
};
exports.names = ["Cassini", "Cassini_Soldner", "cass"];
}, { "../common/adjust_lat": 57, "../common/adjust_lon": 58, "../common/e0fn": 60, "../common/e1fn": 61, "../common/e2fn": 62, "../common/e3fn": 63, "../common/gN": 64, "../common/imlfn": 65, "../common/mlfn": 67}], 97: [function (require, module, exports) {
var adjust_lon = require('../common/adjust_lon');
var qsfnz = require('../common/qsfnz');
var msfnz = require('../common/msfnz');
var iqsfnz = require('../common/iqsfnz');
/*
reference:
"Cartographic Projection Procedures for the UNIX Environment-
A User's Manual" by Gerald I. Evenden,
USGS Open File Report 90-284and Release 4 Interim Reports (2003)
*/
exports.init = function () {
//no-op
if (!this.sphere) {
this.k0 = msfnz(this.e, Math.sin(this.lat_ts), Math.cos(this.lat_ts));
}
};
/* Cylindrical Equal Area forward equations--mapping lat,long to x,y
------------------------------------------------------------*/
exports.forward = function (p) {
var lon = p.x;
var lat = p.y;
var x, y;
/* Forward equations
-----------------*/
var dlon = adjust_lon(lon - this.long0);
if (this.sphere) {
x = this.x0 + this.a * dlon * Math.cos(this.lat_ts);
y = this.y0 + this.a * Math.sin(lat) / Math.cos(this.lat_ts);
}
else {
var qs = qsfnz(this.e, Math.sin(lat));
x = this.x0 + this.a * this.k0 * dlon;
y = this.y0 + this.a * qs * 0.5 / this.k0;
}
p.x = x;
p.y = y;
return p;
};
/* Cylindrical Equal Area inverse equations--mapping x,y to lat/long
------------------------------------------------------------*/
exports.inverse = function (p) {
p.x -= this.x0;
p.y -= this.y0;
var lon, lat;
if (this.sphere) {
lon = adjust_lon(this.long0 + (p.x / this.a) / Math.cos(this.lat_ts));
lat = Math.asin((p.y / this.a) * Math.cos(this.lat_ts));
}
else {
lat = iqsfnz(this.e, 2 * p.y * this.k0 / this.a);
lon = adjust_lon(this.long0 + p.x / (this.a * this.k0));
}
p.x = lon;
p.y = lat;
return p;
};
exports.names = ["cea"];
}, { "../common/adjust_lon": 58, "../common/iqsfnz": 66, "../common/msfnz": 68, "../common/qsfnz": 73}], 98: [function (require, module, exports) {
var adjust_lon = require('../common/adjust_lon');
var adjust_lat = require('../common/adjust_lat');
exports.init = function () {
this.x0 = this.x0 || 0;
this.y0 = this.y0 || 0;
this.lat0 = this.lat0 || 0;
this.long0 = this.long0 || 0;
this.lat_ts = this.lat_ts || 0;
this.title = this.title || "Equidistant Cylindrical (Plate Carre)";
this.rc = Math.cos(this.lat_ts);
};
// forward equations--mapping lat,long to x,y
// -----------------------------------------------------------------
exports.forward = function (p) {
var lon = p.x;
var lat = p.y;
var dlon = adjust_lon(lon - this.long0);
var dlat = adjust_lat(lat - this.lat0);
p.x = this.x0 + (this.a * dlon * this.rc);
p.y = this.y0 + (this.a * dlat);
return p;
};
// inverse equations--mapping x,y to lat/long
// -----------------------------------------------------------------
exports.inverse = function (p) {
var x = p.x;
var y = p.y;
p.x = adjust_lon(this.long0 + ((x - this.x0) / (this.a * this.rc)));
p.y = adjust_lat(this.lat0 + ((y - this.y0) / (this.a)));
return p;
};
exports.names = ["Equirectangular", "Equidistant_Cylindrical", "eqc"];
}, { "../common/adjust_lat": 57, "../common/adjust_lon": 58}], 99: [function (require, module, exports) {
var e0fn = require('../common/e0fn');
var e1fn = require('../common/e1fn');
var e2fn = require('../common/e2fn');
var e3fn = require('../common/e3fn');
var msfnz = require('../common/msfnz');
var mlfn = require('../common/mlfn');
var adjust_lon = require('../common/adjust_lon');
var adjust_lat = require('../common/adjust_lat');
var imlfn = require('../common/imlfn');
var EPSLN = 1.0e-10;
exports.init = function () {
/* Place parameters in static storage for common use
-------------------------------------------------*/
// Standard Parallels cannot be equal and on opposite sides of the equator
if (Math.abs(this.lat1 + this.lat2) < EPSLN) {
return;
}
this.lat2 = this.lat2 || this.lat1;
this.temp = this.b / this.a;
this.es = 1 - Math.pow(this.temp, 2);
this.e = Math.sqrt(this.es);
this.e0 = e0fn(this.es);
this.e1 = e1fn(this.es);
this.e2 = e2fn(this.es);
this.e3 = e3fn(this.es);
this.sinphi = Math.sin(this.lat1);
this.cosphi = Math.cos(this.lat1);
this.ms1 = msfnz(this.e, this.sinphi, this.cosphi);
this.ml1 = mlfn(this.e0, this.e1, this.e2, this.e3, this.lat1);
if (Math.abs(this.lat1 - this.lat2) < EPSLN) {
this.ns = this.sinphi;
}
else {
this.sinphi = Math.sin(this.lat2);
this.cosphi = Math.cos(this.lat2);
this.ms2 = msfnz(this.e, this.sinphi, this.cosphi);
this.ml2 = mlfn(this.e0, this.e1, this.e2, this.e3, this.lat2);
this.ns = (this.ms1 - this.ms2) / (this.ml2 - this.ml1);
}
this.g = this.ml1 + this.ms1 / this.ns;
this.ml0 = mlfn(this.e0, this.e1, this.e2, this.e3, this.lat0);
this.rh = this.a * (this.g - this.ml0);
};
/* Equidistant Conic forward equations--mapping lat,long to x,y
-----------------------------------------------------------*/
exports.forward = function (p) {
var lon = p.x;
var lat = p.y;
var rh1;
/* Forward equations
-----------------*/
if (this.sphere) {
rh1 = this.a * (this.g - lat);
}
else {
var ml = mlfn(this.e0, this.e1, this.e2, this.e3, lat);
rh1 = this.a * (this.g - ml);
}
var theta = this.ns * adjust_lon(lon - this.long0);
var x = this.x0 + rh1 * Math.sin(theta);
var y = this.y0 + this.rh - rh1 * Math.cos(theta);
p.x = x;
p.y = y;
return p;
};
/* Inverse equations
-----------------*/
exports.inverse = function (p) {
p.x -= this.x0;
p.y = this.rh - p.y + this.y0;
var con, rh1, lat, lon;
if (this.ns >= 0) {
rh1 = Math.sqrt(p.x * p.x + p.y * p.y);
con = 1;
}
else {
rh1 = -Math.sqrt(p.x * p.x + p.y * p.y);
con = -1;
}
var theta = 0;
if (rh1 !== 0) {
theta = Math.atan2(con * p.x, con * p.y);
}
if (this.sphere) {
lon = adjust_lon(this.long0 + theta / this.ns);
lat = adjust_lat(this.g - rh1 / this.a);
p.x = lon;
p.y = lat;
return p;
}
else {
var ml = this.g - rh1 / this.a;
lat = imlfn(ml, this.e0, this.e1, this.e2, this.e3);
lon = adjust_lon(this.long0 + theta / this.ns);
p.x = lon;
p.y = lat;
return p;
}
};
exports.names = ["Equidistant_Conic", "eqdc"];
}, { "../common/adjust_lat": 57, "../common/adjust_lon": 58, "../common/e0fn": 60, "../common/e1fn": 61, "../common/e2fn": 62, "../common/e3fn": 63, "../common/imlfn": 65, "../common/mlfn": 67, "../common/msfnz": 68}], 100: [function (require, module, exports) {
var FORTPI = Math.PI / 4;
var srat = require('../common/srat');
var HALF_PI = Math.PI / 2;
var MAX_ITER = 20;
exports.init = function () {
var sphi = Math.sin(this.lat0);
var cphi = Math.cos(this.lat0);
cphi *= cphi;
this.rc = Math.sqrt(1 - this.es) / (1 - this.es * sphi * sphi);
this.C = Math.sqrt(1 + this.es * cphi * cphi / (1 - this.es));
this.phic0 = Math.asin(sphi / this.C);
this.ratexp = 0.5 * this.C * this.e;
this.K = Math.tan(0.5 * this.phic0 + FORTPI) / (Math.pow(Math.tan(0.5 * this.lat0 + FORTPI), this.C) * srat(this.e * sphi, this.ratexp));
};
exports.forward = function (p) {
var lon = p.x;
var lat = p.y;
p.y = 2 * Math.atan(this.K * Math.pow(Math.tan(0.5 * lat + FORTPI), this.C) * srat(this.e * Math.sin(lat), this.ratexp)) - HALF_PI;
p.x = this.C * lon;
return p;
};
exports.inverse = function (p) {
var DEL_TOL = 1e-14;
var lon = p.x / this.C;
var lat = p.y;
var num = Math.pow(Math.tan(0.5 * lat + FORTPI) / this.K, 1 / this.C);
for (var i = MAX_ITER; i > 0; --i) {
lat = 2 * Math.atan(num * srat(this.e * Math.sin(p.y), -0.5 * this.e)) - HALF_PI;
if (Math.abs(lat - p.y) < DEL_TOL) {
break;
}
p.y = lat;
}
/* convergence failed */
if (!i) {
return null;
}
p.x = lon;
p.y = lat;
return p;
};
exports.names = ["gauss"];
}, { "../common/srat": 75}], 101: [function (require, module, exports) {
var adjust_lon = require('../common/adjust_lon');
var EPSLN = 1.0e-10;
var asinz = require('../common/asinz');
/*
reference:
Wolfram Mathworld "Gnomonic Projection"
http://mathworld.wolfram.com/GnomonicProjection.html
Accessed: 12th November 2009
*/
exports.init = function () {
/* Place parameters in static storage for common use
-------------------------------------------------*/
this.sin_p14 = Math.sin(this.lat0);
this.cos_p14 = Math.cos(this.lat0);
// Approximation for projecting points to the horizon (infinity)
this.infinity_dist = 1000 * this.a;
this.rc = 1;
};
/* Gnomonic forward equations--mapping lat,long to x,y
---------------------------------------------------*/
exports.forward = function (p) {
var sinphi, cosphi; /* sin and cos value */
var dlon; /* delta longitude value */
var coslon; /* cos of longitude */
var ksp; /* scale factor */
var g;
var x, y;
var lon = p.x;
var lat = p.y;
/* Forward equations
-----------------*/
dlon = adjust_lon(lon - this.long0);
sinphi = Math.sin(lat);
cosphi = Math.cos(lat);
coslon = Math.cos(dlon);
g = this.sin_p14 * sinphi + this.cos_p14 * cosphi * coslon;
ksp = 1;
if ((g > 0) || (Math.abs(g) <= EPSLN)) {
x = this.x0 + this.a * ksp * cosphi * Math.sin(dlon) / g;
y = this.y0 + this.a * ksp * (this.cos_p14 * sinphi - this.sin_p14 * cosphi * coslon) / g;
}
else {
// Point is in the opposing hemisphere and is unprojectable
// We still need to return a reasonable point, so we project
// to infinity, on a bearing
// equivalent to the northern hemisphere equivalent
// This is a reasonable approximation for short shapes and lines that
// straddle the horizon.
x = this.x0 + this.infinity_dist * cosphi * Math.sin(dlon);
y = this.y0 + this.infinity_dist * (this.cos_p14 * sinphi - this.sin_p14 * cosphi * coslon);
}
p.x = x;
p.y = y;
return p;
};
exports.inverse = function (p) {
var rh; /* Rho */
var sinc, cosc;
var c;
var lon, lat;
/* Inverse equations
-----------------*/
p.x = (p.x - this.x0) / this.a;
p.y = (p.y - this.y0) / this.a;
p.x /= this.k0;
p.y /= this.k0;
if ((rh = Math.sqrt(p.x * p.x + p.y * p.y))) {
c = Math.atan2(rh, this.rc);
sinc = Math.sin(c);
cosc = Math.cos(c);
lat = asinz(cosc * this.sin_p14 + (p.y * sinc * this.cos_p14) / rh);
lon = Math.atan2(p.x * sinc, rh * this.cos_p14 * cosc - p.y * this.sin_p14 * sinc);
lon = adjust_lon(this.long0 + lon);
}
else {
lat = this.phic0;
lon = 0;
}
p.x = lon;
p.y = lat;
return p;
};
exports.names = ["gnom"];
}, { "../common/adjust_lon": 58, "../common/asinz": 59}], 102: [function (require, module, exports) {
var adjust_lon = require('../common/adjust_lon');
exports.init = function () {
this.a = 6377397.155;
this.es = 0.006674372230614;
this.e = Math.sqrt(this.es);
if (!this.lat0) {
this.lat0 = 0.863937979737193;
}
if (!this.long0) {
this.long0 = 0.7417649320975901 - 0.308341501185665;
}
/* if scale not set default to 0.9999 */
if (!this.k0) {
this.k0 = 0.9999;
}
this.s45 = 0.785398163397448; /* 45 */
this.s90 = 2 * this.s45;
this.fi0 = this.lat0;
this.e2 = this.es;
this.e = Math.sqrt(this.e2);
this.alfa = Math.sqrt(1 + (this.e2 * Math.pow(Math.cos(this.fi0), 4)) / (1 - this.e2));
this.uq = 1.04216856380474;
this.u0 = Math.asin(Math.sin(this.fi0) / this.alfa);
this.g = Math.pow((1 + this.e * Math.sin(this.fi0)) / (1 - this.e * Math.sin(this.fi0)), this.alfa * this.e / 2);
this.k = Math.tan(this.u0 / 2 + this.s45) / Math.pow(Math.tan(this.fi0 / 2 + this.s45), this.alfa) * this.g;
this.k1 = this.k0;
this.n0 = this.a * Math.sqrt(1 - this.e2) / (1 - this.e2 * Math.pow(Math.sin(this.fi0), 2));
this.s0 = 1.37008346281555;
this.n = Math.sin(this.s0);
this.ro0 = this.k1 * this.n0 / Math.tan(this.s0);
this.ad = this.s90 - this.uq;
};
/* ellipsoid */
/* calculate xy from lat/lon */
/* Constants, identical to inverse transform function */
exports.forward = function (p) {
var gfi, u, deltav, s, d, eps, ro;
var lon = p.x;
var lat = p.y;
var delta_lon = adjust_lon(lon - this.long0);
/* Transformation */
gfi = Math.pow(((1 + this.e * Math.sin(lat)) / (1 - this.e * Math.sin(lat))), (this.alfa * this.e / 2));
u = 2 * (Math.atan(this.k * Math.pow(Math.tan(lat / 2 + this.s45), this.alfa) / gfi) - this.s45);
deltav = -delta_lon * this.alfa;
s = Math.asin(Math.cos(this.ad) * Math.sin(u) + Math.sin(this.ad) * Math.cos(u) * Math.cos(deltav));
d = Math.asin(Math.cos(u) * Math.sin(deltav) / Math.cos(s));
eps = this.n * d;
ro = this.ro0 * Math.pow(Math.tan(this.s0 / 2 + this.s45), this.n) / Math.pow(Math.tan(s / 2 + this.s45), this.n);
p.y = ro * Math.cos(eps) / 1;
p.x = ro * Math.sin(eps) / 1;
if (!this.czech) {
p.y *= -1;
p.x *= -1;
}
return (p);
};
/* calculate lat/lon from xy */
exports.inverse = function (p) {
var u, deltav, s, d, eps, ro, fi1;
var ok;
/* Transformation */
/* revert y, x*/
var tmp = p.x;
p.x = p.y;
p.y = tmp;
if (!this.czech) {
p.y *= -1;
p.x *= -1;
}
ro = Math.sqrt(p.x * p.x + p.y * p.y);
eps = Math.atan2(p.y, p.x);
d = eps / Math.sin(this.s0);
s = 2 * (Math.atan(Math.pow(this.ro0 / ro, 1 / this.n) * Math.tan(this.s0 / 2 + this.s45)) - this.s45);
u = Math.asin(Math.cos(this.ad) * Math.sin(s) - Math.sin(this.ad) * Math.cos(s) * Math.cos(d));
deltav = Math.asin(Math.cos(s) * Math.sin(d) / Math.cos(u));
p.x = this.long0 - deltav / this.alfa;
fi1 = u;
ok = 0;
var iter = 0;
do {
p.y = 2 * (Math.atan(Math.pow(this.k, -1 / this.alfa) * Math.pow(Math.tan(u / 2 + this.s45), 1 / this.alfa) * Math.pow((1 + this.e * Math.sin(fi1)) / (1 - this.e * Math.sin(fi1)), this.e / 2)) - this.s45);
if (Math.abs(fi1 - p.y) < 0.0000000001) {
ok = 1;
}
fi1 = p.y;
iter += 1;
} while (ok === 0 && iter < 15);
if (iter >= 15) {
return null;
}
return (p);
};
exports.names = ["Krovak", "krovak"];
}, { "../common/adjust_lon": 58}], 103: [function (require, module, exports) {
var HALF_PI = Math.PI / 2;
var FORTPI = Math.PI / 4;
var EPSLN = 1.0e-10;
var qsfnz = require('../common/qsfnz');
var adjust_lon = require('../common/adjust_lon');
/*
reference
"New Equal-Area Map Projections for Noncircular Regions", John P. Snyder,
The American Cartographer, Vol 15, No. 4, October 1988, pp. 341-355.
*/
exports.S_POLE = 1;
exports.N_POLE = 2;
exports.EQUIT = 3;
exports.OBLIQ = 4;
/* Initialize the Lambert Azimuthal Equal Area projection
------------------------------------------------------*/
exports.init = function () {
var t = Math.abs(this.lat0);
if (Math.abs(t - HALF_PI) < EPSLN) {
this.mode = this.lat0 < 0 ? this.S_POLE : this.N_POLE;
}
else if (Math.abs(t) < EPSLN) {
this.mode = this.EQUIT;
}
else {
this.mode = this.OBLIQ;
}
if (this.es > 0) {
var sinphi;
this.qp = qsfnz(this.e, 1);
this.mmf = 0.5 / (1 - this.es);
this.apa = this.authset(this.es);
switch (this.mode) {
case this.N_POLE:
this.dd = 1;
break;
case this.S_POLE:
this.dd = 1;
break;
case this.EQUIT:
this.rq = Math.sqrt(0.5 * this.qp);
this.dd = 1 / this.rq;
this.xmf = 1;
this.ymf = 0.5 * this.qp;
break;
case this.OBLIQ:
this.rq = Math.sqrt(0.5 * this.qp);
sinphi = Math.sin(this.lat0);
this.sinb1 = qsfnz(this.e, sinphi) / this.qp;
this.cosb1 = Math.sqrt(1 - this.sinb1 * this.sinb1);
this.dd = Math.cos(this.lat0) / (Math.sqrt(1 - this.es * sinphi * sinphi) * this.rq * this.cosb1);
this.ymf = (this.xmf = this.rq) / this.dd;
this.xmf *= this.dd;
break;
}
}
else {
if (this.mode === this.OBLIQ) {
this.sinph0 = Math.sin(this.lat0);
this.cosph0 = Math.cos(this.lat0);
}
}
};
/* Lambert Azimuthal Equal Area forward equations--mapping lat,long to x,y
-----------------------------------------------------------------------*/
exports.forward = function (p) {
/* Forward equations
-----------------*/
var x, y, coslam, sinlam, sinphi, q, sinb, cosb, b, cosphi;
var lam = p.x;
var phi = p.y;
lam = adjust_lon(lam - this.long0);
if (this.sphere) {
sinphi = Math.sin(phi);
cosphi = Math.cos(phi);
coslam = Math.cos(lam);
if (this.mode === this.OBLIQ || this.mode === this.EQUIT) {
y = (this.mode === this.EQUIT) ? 1 + cosphi * coslam : 1 + this.sinph0 * sinphi + this.cosph0 * cosphi * coslam;
if (y <= EPSLN) {
return null;
}
y = Math.sqrt(2 / y);
x = y * cosphi * Math.sin(lam);
y *= (this.mode === this.EQUIT) ? sinphi : this.cosph0 * sinphi - this.sinph0 * cosphi * coslam;
}
else if (this.mode === this.N_POLE || this.mode === this.S_POLE) {
if (this.mode === this.N_POLE) {
coslam = -coslam;
}
if (Math.abs(phi + this.phi0) < EPSLN) {
return null;
}
y = FORTPI - phi * 0.5;
y = 2 * ((this.mode === this.S_POLE) ? Math.cos(y) : Math.sin(y));
x = y * Math.sin(lam);
y *= coslam;
}
}
else {
sinb = 0;
cosb = 0;
b = 0;
coslam = Math.cos(lam);
sinlam = Math.sin(lam);
sinphi = Math.sin(phi);
q = qsfnz(this.e, sinphi);
if (this.mode === this.OBLIQ || this.mode === this.EQUIT) {
sinb = q / this.qp;
cosb = Math.sqrt(1 - sinb * sinb);
}
switch (this.mode) {
case this.OBLIQ:
b = 1 + this.sinb1 * sinb + this.cosb1 * cosb * coslam;
break;
case this.EQUIT:
b = 1 + cosb * coslam;
break;
case this.N_POLE:
b = HALF_PI + phi;
q = this.qp - q;
break;
case this.S_POLE:
b = phi - HALF_PI;
q = this.qp + q;
break;
}
if (Math.abs(b) < EPSLN) {
return null;
}
switch (this.mode) {
case this.OBLIQ:
case this.EQUIT:
b = Math.sqrt(2 / b);
if (this.mode === this.OBLIQ) {
y = this.ymf * b * (this.cosb1 * sinb - this.sinb1 * cosb * coslam);
}
else {
y = (b = Math.sqrt(2 / (1 + cosb * coslam))) * sinb * this.ymf;
}
x = this.xmf * b * cosb * sinlam;
break;
case this.N_POLE:
case this.S_POLE:
if (q >= 0) {
x = (b = Math.sqrt(q)) * sinlam;
y = coslam * ((this.mode === this.S_POLE) ? b : -b);
}
else {
x = y = 0;
}
break;
}
}
p.x = this.a * x + this.x0;
p.y = this.a * y + this.y0;
return p;
};
/* Inverse equations
-----------------*/
exports.inverse = function (p) {
p.x -= this.x0;
p.y -= this.y0;
var x = p.x / this.a;
var y = p.y / this.a;
var lam, phi, cCe, sCe, q, rho, ab;
if (this.sphere) {
var cosz = 0,
rh, sinz = 0;
rh = Math.sqrt(x * x + y * y);
phi = rh * 0.5;
if (phi > 1) {
return null;
}
phi = 2 * Math.asin(phi);
if (this.mode === this.OBLIQ || this.mode === this.EQUIT) {
sinz = Math.sin(phi);
cosz = Math.cos(phi);
}
switch (this.mode) {
case this.EQUIT:
phi = (Math.abs(rh) <= EPSLN) ? 0 : Math.asin(y * sinz / rh);
x *= sinz;
y = cosz * rh;
break;
case this.OBLIQ:
phi = (Math.abs(rh) <= EPSLN) ? this.phi0 : Math.asin(cosz * this.sinph0 + y * sinz * this.cosph0 / rh);
x *= sinz * this.cosph0;
y = (cosz - Math.sin(phi) * this.sinph0) * rh;
break;
case this.N_POLE:
y = -y;
phi = HALF_PI - phi;
break;
case this.S_POLE:
phi -= HALF_PI;
break;
}
lam = (y === 0 && (this.mode === this.EQUIT || this.mode === this.OBLIQ)) ? 0 : Math.atan2(x, y);
}
else {
ab = 0;
if (this.mode === this.OBLIQ || this.mode === this.EQUIT) {
x /= this.dd;
y *= this.dd;
rho = Math.sqrt(x * x + y * y);
if (rho < EPSLN) {
p.x = 0;
p.y = this.phi0;
return p;
}
sCe = 2 * Math.asin(0.5 * rho / this.rq);
cCe = Math.cos(sCe);
x *= (sCe = Math.sin(sCe));
if (this.mode === this.OBLIQ) {
ab = cCe * this.sinb1 + y * sCe * this.cosb1 / rho;
q = this.qp * ab;
y = rho * this.cosb1 * cCe - y * this.sinb1 * sCe;
}
else {
ab = y * sCe / rho;
q = this.qp * ab;
y = rho * cCe;
}
}
else if (this.mode === this.N_POLE || this.mode === this.S_POLE) {
if (this.mode === this.N_POLE) {
y = -y;
}
q = (x * x + y * y);
if (!q) {
p.x = 0;
p.y = this.phi0;
return p;
}
ab = 1 - q / this.qp;
if (this.mode === this.S_POLE) {
ab = -ab;
}
}
lam = Math.atan2(x, y);
phi = this.authlat(Math.asin(ab), this.apa);
}
p.x = adjust_lon(this.long0 + lam);
p.y = phi;
return p;
};
/* determine latitude from authalic latitude */
exports.P00 = 0.33333333333333333333;
exports.P01 = 0.17222222222222222222;
exports.P02 = 0.10257936507936507936;
exports.P10 = 0.06388888888888888888;
exports.P11 = 0.06640211640211640211;
exports.P20 = 0.01641501294219154443;
exports.authset = function (es) {
var t;
var APA = [];
APA[0] = es * this.P00;
t = es * es;
APA[0] += t * this.P01;
APA[1] = t * this.P10;
t *= es;
APA[0] += t * this.P02;
APA[1] += t * this.P11;
APA[2] = t * this.P20;
return APA;
};
exports.authlat = function (beta, APA) {
var t = beta + beta;
return (beta + APA[0] * Math.sin(t) + APA[1] * Math.sin(t + t) + APA[2] * Math.sin(t + t + t));
};
exports.names = ["Lambert Azimuthal Equal Area", "Lambert_Azimuthal_Equal_Area", "laea"];
}, { "../common/adjust_lon": 58, "../common/qsfnz": 73}], 104: [function (require, module, exports) {
var EPSLN = 1.0e-10;
var msfnz = require('../common/msfnz');
var tsfnz = require('../common/tsfnz');
var HALF_PI = Math.PI / 2;
var sign = require('../common/sign');
var adjust_lon = require('../common/adjust_lon');
var phi2z = require('../common/phi2z');
exports.init = function () {
// array of: r_maj,r_min,lat1,lat2,c_lon,c_lat,false_east,false_north
//double c_lat; /* center latitude */
//double c_lon; /* center longitude */
//double lat1; /* first standard parallel */
//double lat2; /* second standard parallel */
//double r_maj; /* major axis */
//double r_min; /* minor axis */
//double false_east; /* x offset in meters */
//double false_north; /* y offset in meters */
if (!this.lat2) {
this.lat2 = this.lat1;
} //if lat2 is not defined
if (!this.k0) {
this.k0 = 1;
}
this.x0 = this.x0 || 0;
this.y0 = this.y0 || 0;
// Standard Parallels cannot be equal and on opposite sides of the equator
if (Math.abs(this.lat1 + this.lat2) < EPSLN) {
return;
}
var temp = this.b / this.a;
this.e = Math.sqrt(1 - temp * temp);
var sin1 = Math.sin(this.lat1);
var cos1 = Math.cos(this.lat1);
var ms1 = msfnz(this.e, sin1, cos1);
var ts1 = tsfnz(this.e, this.lat1, sin1);
var sin2 = Math.sin(this.lat2);
var cos2 = Math.cos(this.lat2);
var ms2 = msfnz(this.e, sin2, cos2);
var ts2 = tsfnz(this.e, this.lat2, sin2);
var ts0 = tsfnz(this.e, this.lat0, Math.sin(this.lat0));
if (Math.abs(this.lat1 - this.lat2) > EPSLN) {
this.ns = Math.log(ms1 / ms2) / Math.log(ts1 / ts2);
}
else {
this.ns = sin1;
}
if (isNaN(this.ns)) {
this.ns = sin1;
}
this.f0 = ms1 / (this.ns * Math.pow(ts1, this.ns));
this.rh = this.a * this.f0 * Math.pow(ts0, this.ns);
if (!this.title) {
this.title = "Lambert Conformal Conic";
}
};
// Lambert Conformal conic forward equations--mapping lat,long to x,y
// -----------------------------------------------------------------
exports.forward = function (p) {
var lon = p.x;
var lat = p.y;
// singular cases :
if (Math.abs(2 * Math.abs(lat) - Math.PI) <= EPSLN) {
lat = sign(lat) * (HALF_PI - 2 * EPSLN);
}
var con = Math.abs(Math.abs(lat) - HALF_PI);
var ts, rh1;
if (con > EPSLN) {
ts = tsfnz(this.e, lat, Math.sin(lat));
rh1 = this.a * this.f0 * Math.pow(ts, this.ns);
}
else {
con = lat * this.ns;
if (con <= 0) {
return null;
}
rh1 = 0;
}
var theta = this.ns * adjust_lon(lon - this.long0);
p.x = this.k0 * (rh1 * Math.sin(theta)) + this.x0;
p.y = this.k0 * (this.rh - rh1 * Math.cos(theta)) + this.y0;
return p;
};
// Lambert Conformal Conic inverse equations--mapping x,y to lat/long
// -----------------------------------------------------------------
exports.inverse = function (p) {
var rh1, con, ts;
var lat, lon;
var x = (p.x - this.x0) / this.k0;
var y = (this.rh - (p.y - this.y0) / this.k0);
if (this.ns > 0) {
rh1 = Math.sqrt(x * x + y * y);
con = 1;
}
else {
rh1 = -Math.sqrt(x * x + y * y);
con = -1;
}
var theta = 0;
if (rh1 !== 0) {
theta = Math.atan2((con * x), (con * y));
}
if ((rh1 !== 0) || (this.ns > 0)) {
con = 1 / this.ns;
ts = Math.pow((rh1 / (this.a * this.f0)), con);
lat = phi2z(this.e, ts);
if (lat === -9999) {
return null;
}
}
else {
lat = -HALF_PI;
}
lon = adjust_lon(theta / this.ns + this.long0);
p.x = lon;
p.y = lat;
return p;
};
exports.names = ["Lambert Tangential Conformal Conic Projection", "Lambert_Conformal_Conic", "Lambert_Conformal_Conic_2SP", "lcc"];
}, { "../common/adjust_lon": 58, "../common/msfnz": 68, "../common/phi2z": 69, "../common/sign": 74, "../common/tsfnz": 77}], 105: [function (require, module, exports) {
exports.init = function () {
//no-op for longlat
};
function identity(pt) {
return pt;
}
exports.forward = identity;
exports.inverse = identity;
exports.names = ["longlat", "identity"];
}, {}], 106: [function (require, module, exports) {
var msfnz = require('../common/msfnz');
var HALF_PI = Math.PI / 2;
var EPSLN = 1.0e-10;
var R2D = 57.29577951308232088;
var adjust_lon = require('../common/adjust_lon');
var FORTPI = Math.PI / 4;
var tsfnz = require('../common/tsfnz');
var phi2z = require('../common/phi2z');
exports.init = function () {
var con = this.b / this.a;
this.es = 1 - con * con;
if (!('x0' in this)) {
this.x0 = 0;
}
if (!('y0' in this)) {
this.y0 = 0;
}
this.e = Math.sqrt(this.es);
if (this.lat_ts) {
if (this.sphere) {
this.k0 = Math.cos(this.lat_ts);
}
else {
this.k0 = msfnz(this.e, Math.sin(this.lat_ts), Math.cos(this.lat_ts));
}
}
else {
if (!this.k0) {
if (this.k) {
this.k0 = this.k;
}
else {
this.k0 = 1;
}
}
}
};
/* Mercator forward equations--mapping lat,long to x,y
--------------------------------------------------*/
exports.forward = function (p) {
var lon = p.x;
var lat = p.y;
// convert to radians
if (lat * R2D > 90 && lat * R2D < -90 && lon * R2D > 180 && lon * R2D < -180) {
return null;
}
var x, y;
if (Math.abs(Math.abs(lat) - HALF_PI) <= EPSLN) {
return null;
}
else {
if (this.sphere) {
x = this.x0 + this.a * this.k0 * adjust_lon(lon - this.long0);
y = this.y0 + this.a * this.k0 * Math.log(Math.tan(FORTPI + 0.5 * lat));
}
else {
var sinphi = Math.sin(lat);
var ts = tsfnz(this.e, lat, sinphi);
x = this.x0 + this.a * this.k0 * adjust_lon(lon - this.long0);
y = this.y0 - this.a * this.k0 * Math.log(ts);
}
p.x = x;
p.y = y;
return p;
}
};
/* Mercator inverse equations--mapping x,y to lat/long
--------------------------------------------------*/
exports.inverse = function (p) {
var x = p.x - this.x0;
var y = p.y - this.y0;
var lon, lat;
if (this.sphere) {
lat = HALF_PI - 2 * Math.atan(Math.exp(-y / (this.a * this.k0)));
}
else {
var ts = Math.exp(-y / (this.a * this.k0));
lat = phi2z(this.e, ts);
if (lat === -9999) {
return null;
}
}
lon = adjust_lon(this.long0 + x / (this.a * this.k0));
p.x = lon;
p.y = lat;
return p;
};
exports.names = ["Mercator", "Popular Visualisation Pseudo Mercator", "Mercator_1SP", "Mercator_Auxiliary_Sphere", "merc"];
}, { "../common/adjust_lon": 58, "../common/msfnz": 68, "../common/phi2z": 69, "../common/tsfnz": 77}], 107: [function (require, module, exports) {
var adjust_lon = require('../common/adjust_lon');
/*
reference
"New Equal-Area Map Projections for Noncircular Regions", John P. Snyder,
The American Cartographer, Vol 15, No. 4, October 1988, pp. 341-355.
*/
/* Initialize the Miller Cylindrical projection
-------------------------------------------*/
exports.init = function () {
//no-op
};
/* Miller Cylindrical forward equations--mapping lat,long to x,y
------------------------------------------------------------*/
exports.forward = function (p) {
var lon = p.x;
var lat = p.y;
/* Forward equations
-----------------*/
var dlon = adjust_lon(lon - this.long0);
var x = this.x0 + this.a * dlon;
var y = this.y0 + this.a * Math.log(Math.tan((Math.PI / 4) + (lat / 2.5))) * 1.25;
p.x = x;
p.y = y;
return p;
};
/* Miller Cylindrical inverse equations--mapping x,y to lat/long
------------------------------------------------------------*/
exports.inverse = function (p) {
p.x -= this.x0;
p.y -= this.y0;
var lon = adjust_lon(this.long0 + p.x / this.a);
var lat = 2.5 * (Math.atan(Math.exp(0.8 * p.y / this.a)) - Math.PI / 4);
p.x = lon;
p.y = lat;
return p;
};
exports.names = ["Miller_Cylindrical", "mill"];
}, { "../common/adjust_lon": 58}], 108: [function (require, module, exports) {
var adjust_lon = require('../common/adjust_lon');
var EPSLN = 1.0e-10;
exports.init = function () { };
/* Mollweide forward equations--mapping lat,long to x,y
----------------------------------------------------*/
exports.forward = function (p) {
/* Forward equations
-----------------*/
var lon = p.x;
var lat = p.y;
var delta_lon = adjust_lon(lon - this.long0);
var theta = lat;
var con = Math.PI * Math.sin(lat);
/* Iterate using the Newton-Raphson method to find theta
-----------------------------------------------------*/
for (var i = 0; true; i++) {
var delta_theta = -(theta + Math.sin(theta) - con) / (1 + Math.cos(theta));
theta += delta_theta;
if (Math.abs(delta_theta) < EPSLN) {
break;
}
}
theta /= 2;
/* If the latitude is 90 deg, force the x coordinate to be "0 + false easting"
this is done here because of precision problems with "cos(theta)"
--------------------------------------------------------------------------*/
if (Math.PI / 2 - Math.abs(lat) < EPSLN) {
delta_lon = 0;
}
var x = 0.900316316158 * this.a * delta_lon * Math.cos(theta) + this.x0;
var y = 1.4142135623731 * this.a * Math.sin(theta) + this.y0;
p.x = x;
p.y = y;
return p;
};
exports.inverse = function (p) {
var theta;
var arg;
/* Inverse equations
-----------------*/
p.x -= this.x0;
p.y -= this.y0;
arg = p.y / (1.4142135623731 * this.a);
/* Because of division by zero problems, 'arg' can not be 1. Therefore
a number very close to one is used instead.
-------------------------------------------------------------------*/
if (Math.abs(arg) > 0.999999999999) {
arg = 0.999999999999;
}
theta = Math.asin(arg);
var lon = adjust_lon(this.long0 + (p.x / (0.900316316158 * this.a * Math.cos(theta))));
if (lon < (-Math.PI)) {
lon = -Math.PI;
}
if (lon > Math.PI) {
lon = Math.PI;
}
arg = (2 * theta + Math.sin(2 * theta)) / Math.PI;
if (Math.abs(arg) > 1) {
arg = 1;
}
var lat = Math.asin(arg);
p.x = lon;
p.y = lat;
return p;
};
exports.names = ["Mollweide", "moll"];
}, { "../common/adjust_lon": 58}], 109: [function (require, module, exports) {
var SEC_TO_RAD = 4.84813681109535993589914102357e-6;
/*
reference
Department of Land and Survey Technical Circular 1973/32
http://www.linz.govt.nz/docs/miscellaneous/nz-map-definition.pdf
OSG Technical Report 4.1
http://www.linz.govt.nz/docs/miscellaneous/nzmg.pdf
*/
/**
* iterations: Number of iterations to refine inverse transform.
* 0 -> km accuracy
* 1 -> m accuracy -- suitable for most mapping applications
* 2 -> mm accuracy
*/
exports.iterations = 1;
exports.init = function () {
this.A = [];
this.A[1] = 0.6399175073;
this.A[2] = -0.1358797613;
this.A[3] = 0.063294409;
this.A[4] = -0.02526853;
this.A[5] = 0.0117879;
this.A[6] = -0.0055161;
this.A[7] = 0.0026906;
this.A[8] = -0.001333;
this.A[9] = 0.00067;
this.A[10] = -0.00034;
this.B_re = [];
this.B_im = [];
this.B_re[1] = 0.7557853228;
this.B_im[1] = 0;
this.B_re[2] = 0.249204646;
this.B_im[2] = 0.003371507;
this.B_re[3] = -0.001541739;
this.B_im[3] = 0.041058560;
this.B_re[4] = -0.10162907;
this.B_im[4] = 0.01727609;
this.B_re[5] = -0.26623489;
this.B_im[5] = -0.36249218;
this.B_re[6] = -0.6870983;
this.B_im[6] = -1.1651967;
this.C_re = [];
this.C_im = [];
this.C_re[1] = 1.3231270439;
this.C_im[1] = 0;
this.C_re[2] = -0.577245789;
this.C_im[2] = -0.007809598;
this.C_re[3] = 0.508307513;
this.C_im[3] = -0.112208952;
this.C_re[4] = -0.15094762;
this.C_im[4] = 0.18200602;
this.C_re[5] = 1.01418179;
this.C_im[5] = 1.64497696;
this.C_re[6] = 1.9660549;
this.C_im[6] = 2.5127645;
this.D = [];
this.D[1] = 1.5627014243;
this.D[2] = 0.5185406398;
this.D[3] = -0.03333098;
this.D[4] = -0.1052906;
this.D[5] = -0.0368594;
this.D[6] = 0.007317;
this.D[7] = 0.01220;
this.D[8] = 0.00394;
this.D[9] = -0.0013;
};
/**
New Zealand Map Grid Forward - long/lat to x/y
long/lat in radians
*/
exports.forward = function (p) {
var n;
var lon = p.x;
var lat = p.y;
var delta_lat = lat - this.lat0;
var delta_lon = lon - this.long0;
// 1. Calculate d_phi and d_psi ... // and d_lambda
// For this algorithm, delta_latitude is in seconds of arc x 10-5, so we need to scale to those units. Longitude is radians.
var d_phi = delta_lat / SEC_TO_RAD * 1E-5;
var d_lambda = delta_lon;
var d_phi_n = 1; // d_phi^0
var d_psi = 0;
for (n = 1; n <= 10; n++) {
d_phi_n = d_phi_n * d_phi;
d_psi = d_psi + this.A[n] * d_phi_n;
}
// 2. Calculate theta
var th_re = d_psi;
var th_im = d_lambda;
// 3. Calculate z
var th_n_re = 1;
var th_n_im = 0; // theta^0
var th_n_re1;
var th_n_im1;
var z_re = 0;
var z_im = 0;
for (n = 1; n <= 6; n++) {
th_n_re1 = th_n_re * th_re - th_n_im * th_im;
th_n_im1 = th_n_im * th_re + th_n_re * th_im;
th_n_re = th_n_re1;
th_n_im = th_n_im1;
z_re = z_re + this.B_re[n] * th_n_re - this.B_im[n] * th_n_im;
z_im = z_im + this.B_im[n] * th_n_re + this.B_re[n] * th_n_im;
}
// 4. Calculate easting and northing
p.x = (z_im * this.a) + this.x0;
p.y = (z_re * this.a) + this.y0;
return p;
};
/**
New Zealand Map Grid Inverse - x/y to long/lat
*/
exports.inverse = function (p) {
var n;
var x = p.x;
var y = p.y;
var delta_x = x - this.x0;
var delta_y = y - this.y0;
// 1. Calculate z
var z_re = delta_y / this.a;
var z_im = delta_x / this.a;
// 2a. Calculate theta - first approximation gives km accuracy
var z_n_re = 1;
var z_n_im = 0; // z^0
var z_n_re1;
var z_n_im1;
var th_re = 0;
var th_im = 0;
for (n = 1; n <= 6; n++) {
z_n_re1 = z_n_re * z_re - z_n_im * z_im;
z_n_im1 = z_n_im * z_re + z_n_re * z_im;
z_n_re = z_n_re1;
z_n_im = z_n_im1;
th_re = th_re + this.C_re[n] * z_n_re - this.C_im[n] * z_n_im;
th_im = th_im + this.C_im[n] * z_n_re + this.C_re[n] * z_n_im;
}
// 2b. Iterate to refine the accuracy of the calculation
// 0 iterations gives km accuracy
// 1 iteration gives m accuracy -- good enough for most mapping applications
// 2 iterations bives mm accuracy
for (var i = 0; i < this.iterations; i++) {
var th_n_re = th_re;
var th_n_im = th_im;
var th_n_re1;
var th_n_im1;
var num_re = z_re;
var num_im = z_im;
for (n = 2; n <= 6; n++) {
th_n_re1 = th_n_re * th_re - th_n_im * th_im;
th_n_im1 = th_n_im * th_re + th_n_re * th_im;
th_n_re = th_n_re1;
th_n_im = th_n_im1;
num_re = num_re + (n - 1) * (this.B_re[n] * th_n_re - this.B_im[n] * th_n_im);
num_im = num_im + (n - 1) * (this.B_im[n] * th_n_re + this.B_re[n] * th_n_im);
}
th_n_re = 1;
th_n_im = 0;
var den_re = this.B_re[1];
var den_im = this.B_im[1];
for (n = 2; n <= 6; n++) {
th_n_re1 = th_n_re * th_re - th_n_im * th_im;
th_n_im1 = th_n_im * th_re + th_n_re * th_im;
th_n_re = th_n_re1;
th_n_im = th_n_im1;
den_re = den_re + n * (this.B_re[n] * th_n_re - this.B_im[n] * th_n_im);
den_im = den_im + n * (this.B_im[n] * th_n_re + this.B_re[n] * th_n_im);
}
// Complex division
var den2 = den_re * den_re + den_im * den_im;
th_re = (num_re * den_re + num_im * den_im) / den2;
th_im = (num_im * den_re - num_re * den_im) / den2;
}
// 3. Calculate d_phi ... // and d_lambda
var d_psi = th_re;
var d_lambda = th_im;
var d_psi_n = 1; // d_psi^0
var d_phi = 0;
for (n = 1; n <= 9; n++) {
d_psi_n = d_psi_n * d_psi;
d_phi = d_phi + this.D[n] * d_psi_n;
}
// 4. Calculate latitude and longitude
// d_phi is calcuated in second of arc * 10^-5, so we need to scale back to radians. d_lambda is in radians.
var lat = this.lat0 + (d_phi * SEC_TO_RAD * 1E5);
var lon = this.long0 + d_lambda;
p.x = lon;
p.y = lat;
return p;
};
exports.names = ["New_Zealand_Map_Grid", "nzmg"];
}, {}], 110: [function (require, module, exports) {
var tsfnz = require('../common/tsfnz');
var adjust_lon = require('../common/adjust_lon');
var phi2z = require('../common/phi2z');
var HALF_PI = Math.PI / 2;
var FORTPI = Math.PI / 4;
var EPSLN = 1.0e-10;
/* Initialize the Oblique Mercator projection
------------------------------------------*/
exports.init = function () {
this.no_off = this.no_off || false;
this.no_rot = this.no_rot || false;
if (isNaN(this.k0)) {
this.k0 = 1;
}
var sinlat = Math.sin(this.lat0);
var coslat = Math.cos(this.lat0);
var con = this.e * sinlat;
this.bl = Math.sqrt(1 + this.es / (1 - this.es) * Math.pow(coslat, 4));
this.al = this.a * this.bl * this.k0 * Math.sqrt(1 - this.es) / (1 - con * con);
var t0 = tsfnz(this.e, this.lat0, sinlat);
var dl = this.bl / coslat * Math.sqrt((1 - this.es) / (1 - con * con));
if (dl * dl < 1) {
dl = 1;
}
var fl;
var gl;
if (!isNaN(this.longc)) {
//Central point and azimuth method
if (this.lat0 >= 0) {
fl = dl + Math.sqrt(dl * dl - 1);
}
else {
fl = dl - Math.sqrt(dl * dl - 1);
}
this.el = fl * Math.pow(t0, this.bl);
gl = 0.5 * (fl - 1 / fl);
this.gamma0 = Math.asin(Math.sin(this.alpha) / dl);
this.long0 = this.longc - Math.asin(gl * Math.tan(this.gamma0)) / this.bl;
}
else {
//2 points method
var t1 = tsfnz(this.e, this.lat1, Math.sin(this.lat1));
var t2 = tsfnz(this.e, this.lat2, Math.sin(this.lat2));
if (this.lat0 >= 0) {
this.el = (dl + Math.sqrt(dl * dl - 1)) * Math.pow(t0, this.bl);
}
else {
this.el = (dl - Math.sqrt(dl * dl - 1)) * Math.pow(t0, this.bl);
}
var hl = Math.pow(t1, this.bl);
var ll = Math.pow(t2, this.bl);
fl = this.el / hl;
gl = 0.5 * (fl - 1 / fl);
var jl = (this.el * this.el - ll * hl) / (this.el * this.el + ll * hl);
var pl = (ll - hl) / (ll + hl);
var dlon12 = adjust_lon(this.long1 - this.long2);
this.long0 = 0.5 * (this.long1 + this.long2) - Math.atan(jl * Math.tan(0.5 * this.bl * (dlon12)) / pl) / this.bl;
this.long0 = adjust_lon(this.long0);
var dlon10 = adjust_lon(this.long1 - this.long0);
this.gamma0 = Math.atan(Math.sin(this.bl * (dlon10)) / gl);
this.alpha = Math.asin(dl * Math.sin(this.gamma0));
}
if (this.no_off) {
this.uc = 0;
}
else {
if (this.lat0 >= 0) {
this.uc = this.al / this.bl * Math.atan2(Math.sqrt(dl * dl - 1), Math.cos(this.alpha));
}
else {
this.uc = -1 * this.al / this.bl * Math.atan2(Math.sqrt(dl * dl - 1), Math.cos(this.alpha));
}
}
};
/* Oblique Mercator forward equations--mapping lat,long to x,y
----------------------------------------------------------*/
exports.forward = function (p) {
var lon = p.x;
var lat = p.y;
var dlon = adjust_lon(lon - this.long0);
var us, vs;
var con;
if (Math.abs(Math.abs(lat) - HALF_PI) <= EPSLN) {
if (lat > 0) {
con = -1;
}
else {
con = 1;
}
vs = this.al / this.bl * Math.log(Math.tan(FORTPI + con * this.gamma0 * 0.5));
us = -1 * con * HALF_PI * this.al / this.bl;
}
else {
var t = tsfnz(this.e, lat, Math.sin(lat));
var ql = this.el / Math.pow(t, this.bl);
var sl = 0.5 * (ql - 1 / ql);
var tl = 0.5 * (ql + 1 / ql);
var vl = Math.sin(this.bl * (dlon));
var ul = (sl * Math.sin(this.gamma0) - vl * Math.cos(this.gamma0)) / tl;
if (Math.abs(Math.abs(ul) - 1) <= EPSLN) {
vs = Number.POSITIVE_INFINITY;
}
else {
vs = 0.5 * this.al * Math.log((1 - ul) / (1 + ul)) / this.bl;
}
if (Math.abs(Math.cos(this.bl * (dlon))) <= EPSLN) {
us = this.al * this.bl * (dlon);
}
else {
us = this.al * Math.atan2(sl * Math.cos(this.gamma0) + vl * Math.sin(this.gamma0), Math.cos(this.bl * dlon)) / this.bl;
}
}
if (this.no_rot) {
p.x = this.x0 + us;
p.y = this.y0 + vs;
}
else {
us -= this.uc;
p.x = this.x0 + vs * Math.cos(this.alpha) + us * Math.sin(this.alpha);
p.y = this.y0 + us * Math.cos(this.alpha) - vs * Math.sin(this.alpha);
}
return p;
};
exports.inverse = function (p) {
var us, vs;
if (this.no_rot) {
vs = p.y - this.y0;
us = p.x - this.x0;
}
else {
vs = (p.x - this.x0) * Math.cos(this.alpha) - (p.y - this.y0) * Math.sin(this.alpha);
us = (p.y - this.y0) * Math.cos(this.alpha) + (p.x - this.x0) * Math.sin(this.alpha);
us += this.uc;
}
var qp = Math.exp(-1 * this.bl * vs / this.al);
var sp = 0.5 * (qp - 1 / qp);
var tp = 0.5 * (qp + 1 / qp);
var vp = Math.sin(this.bl * us / this.al);
var up = (vp * Math.cos(this.gamma0) + sp * Math.sin(this.gamma0)) / tp;
var ts = Math.pow(this.el / Math.sqrt((1 + up) / (1 - up)), 1 / this.bl);
if (Math.abs(up - 1) < EPSLN) {
p.x = this.long0;
p.y = HALF_PI;
}
else if (Math.abs(up + 1) < EPSLN) {
p.x = this.long0;
p.y = -1 * HALF_PI;
}
else {
p.y = phi2z(this.e, ts);
p.x = adjust_lon(this.long0 - Math.atan2(sp * Math.cos(this.gamma0) - vp * Math.sin(this.gamma0), Math.cos(this.bl * us / this.al)) / this.bl);
}
return p;
};
exports.names = ["Hotine_Oblique_Mercator", "Hotine Oblique Mercator", "Hotine_Oblique_Mercator_Azimuth_Natural_Origin", "Hotine_Oblique_Mercator_Azimuth_Center", "omerc"];
}, { "../common/adjust_lon": 58, "../common/phi2z": 69, "../common/tsfnz": 77}], 111: [function (require, module, exports) {
var e0fn = require('../common/e0fn');
var e1fn = require('../common/e1fn');
var e2fn = require('../common/e2fn');
var e3fn = require('../common/e3fn');
var adjust_lon = require('../common/adjust_lon');
var adjust_lat = require('../common/adjust_lat');
var mlfn = require('../common/mlfn');
var EPSLN = 1.0e-10;
var gN = require('../common/gN');
var MAX_ITER = 20;
exports.init = function () {
/* Place parameters in static storage for common use
-------------------------------------------------*/
this.temp = this.b / this.a;
this.es = 1 - Math.pow(this.temp, 2); // devait etre dans tmerc.js mais n y est pas donc je commente sinon retour de valeurs nulles
this.e = Math.sqrt(this.es);
this.e0 = e0fn(this.es);
this.e1 = e1fn(this.es);
this.e2 = e2fn(this.es);
this.e3 = e3fn(this.es);
this.ml0 = this.a * mlfn(this.e0, this.e1, this.e2, this.e3, this.lat0); //si que des zeros le calcul ne se fait pas
};
/* Polyconic forward equations--mapping lat,long to x,y
---------------------------------------------------*/
exports.forward = function (p) {
var lon = p.x;
var lat = p.y;
var x, y, el;
var dlon = adjust_lon(lon - this.long0);
el = dlon * Math.sin(lat);
if (this.sphere) {
if (Math.abs(lat) <= EPSLN) {
x = this.a * dlon;
y = -1 * this.a * this.lat0;
}
else {
x = this.a * Math.sin(el) / Math.tan(lat);
y = this.a * (adjust_lat(lat - this.lat0) + (1 - Math.cos(el)) / Math.tan(lat));
}
}
else {
if (Math.abs(lat) <= EPSLN) {
x = this.a * dlon;
y = -1 * this.ml0;
}
else {
var nl = gN(this.a, this.e, Math.sin(lat)) / Math.tan(lat);
x = nl * Math.sin(el);
y = this.a * mlfn(this.e0, this.e1, this.e2, this.e3, lat) - this.ml0 + nl * (1 - Math.cos(el));
}
}
p.x = x + this.x0;
p.y = y + this.y0;
return p;
};
/* Inverse equations
-----------------*/
exports.inverse = function (p) {
var lon, lat, x, y, i;
var al, bl;
var phi, dphi;
x = p.x - this.x0;
y = p.y - this.y0;
if (this.sphere) {
if (Math.abs(y + this.a * this.lat0) <= EPSLN) {
lon = adjust_lon(x / this.a + this.long0);
lat = 0;
}
else {
al = this.lat0 + y / this.a;
bl = x * x / this.a / this.a + al * al;
phi = al;
var tanphi;
for (i = MAX_ITER; i; --i) {
tanphi = Math.tan(phi);
dphi = -1 * (al * (phi * tanphi + 1) - phi - 0.5 * (phi * phi + bl) * tanphi) / ((phi - al) / tanphi - 1);
phi += dphi;
if (Math.abs(dphi) <= EPSLN) {
lat = phi;
break;
}
}
lon = adjust_lon(this.long0 + (Math.asin(x * Math.tan(phi) / this.a)) / Math.sin(lat));
}
}
else {
if (Math.abs(y + this.ml0) <= EPSLN) {
lat = 0;
lon = adjust_lon(this.long0 + x / this.a);
}
else {
al = (this.ml0 + y) / this.a;
bl = x * x / this.a / this.a + al * al;
phi = al;
var cl, mln, mlnp, ma;
var con;
for (i = MAX_ITER; i; --i) {
con = this.e * Math.sin(phi);
cl = Math.sqrt(1 - con * con) * Math.tan(phi);
mln = this.a * mlfn(this.e0, this.e1, this.e2, this.e3, phi);
mlnp = this.e0 - 2 * this.e1 * Math.cos(2 * phi) + 4 * this.e2 * Math.cos(4 * phi) - 6 * this.e3 * Math.cos(6 * phi);
ma = mln / this.a;
dphi = (al * (cl * ma + 1) - ma - 0.5 * cl * (ma * ma + bl)) / (this.es * Math.sin(2 * phi) * (ma * ma + bl - 2 * al * ma) / (4 * cl) + (al - ma) * (cl * mlnp - 2 / Math.sin(2 * phi)) - mlnp);
phi -= dphi;
if (Math.abs(dphi) <= EPSLN) {
lat = phi;
break;
}
}
//lat=phi4z(this.e,this.e0,this.e1,this.e2,this.e3,al,bl,0,0);
cl = Math.sqrt(1 - this.es * Math.pow(Math.sin(lat), 2)) * Math.tan(lat);
lon = adjust_lon(this.long0 + Math.asin(x * cl / this.a) / Math.sin(lat));
}
}
p.x = lon;
p.y = lat;
return p;
};
exports.names = ["Polyconic", "poly"];
}, { "../common/adjust_lat": 57, "../common/adjust_lon": 58, "../common/e0fn": 60, "../common/e1fn": 61, "../common/e2fn": 62, "../common/e3fn": 63, "../common/gN": 64, "../common/mlfn": 67}], 112: [function (require, module, exports) {
var adjust_lon = require('../common/adjust_lon');
var adjust_lat = require('../common/adjust_lat');
var pj_enfn = require('../common/pj_enfn');
var MAX_ITER = 20;
var pj_mlfn = require('../common/pj_mlfn');
var pj_inv_mlfn = require('../common/pj_inv_mlfn');
var HALF_PI = Math.PI / 2;
var EPSLN = 1.0e-10;
var asinz = require('../common/asinz');
exports.init = function () {
/* Place parameters in static storage for common use
-------------------------------------------------*/
if (!this.sphere) {
this.en = pj_enfn(this.es);
}
else {
this.n = 1;
this.m = 0;
this.es = 0;
this.C_y = Math.sqrt((this.m + 1) / this.n);
this.C_x = this.C_y / (this.m + 1);
}
};
/* Sinusoidal forward equations--mapping lat,long to x,y
-----------------------------------------------------*/
exports.forward = function (p) {
var x, y;
var lon = p.x;
var lat = p.y;
/* Forward equations
-----------------*/
lon = adjust_lon(lon - this.long0);
if (this.sphere) {
if (!this.m) {
lat = this.n !== 1 ? Math.asin(this.n * Math.sin(lat)) : lat;
}
else {
var k = this.n * Math.sin(lat);
for (var i = MAX_ITER; i; --i) {
var V = (this.m * lat + Math.sin(lat) - k) / (this.m + Math.cos(lat));
lat -= V;
if (Math.abs(V) < EPSLN) {
break;
}
}
}
x = this.a * this.C_x * lon * (this.m + Math.cos(lat));
y = this.a * this.C_y * lat;
}
else {
var s = Math.sin(lat);
var c = Math.cos(lat);
y = this.a * pj_mlfn(lat, s, c, this.en);
x = this.a * lon * c / Math.sqrt(1 - this.es * s * s);
}
p.x = x;
p.y = y;
return p;
};
exports.inverse = function (p) {
var lat, temp, lon, s;
p.x -= this.x0;
lon = p.x / this.a;
p.y -= this.y0;
lat = p.y / this.a;
if (this.sphere) {
lat /= this.C_y;
lon = lon / (this.C_x * (this.m + Math.cos(lat)));
if (this.m) {
lat = asinz((this.m * lat + Math.sin(lat)) / this.n);
}
else if (this.n !== 1) {
lat = asinz(Math.sin(lat) / this.n);
}
lon = adjust_lon(lon + this.long0);
lat = adjust_lat(lat);
}
else {
lat = pj_inv_mlfn(p.y / this.a, this.es, this.en);
s = Math.abs(lat);
if (s < HALF_PI) {
s = Math.sin(lat);
temp = this.long0 + p.x * Math.sqrt(1 - this.es * s * s) / (this.a * Math.cos(lat));
//temp = this.long0 + p.x / (this.a * Math.cos(lat));
lon = adjust_lon(temp);
}
else if ((s - EPSLN) < HALF_PI) {
lon = this.long0;
}
}
p.x = lon;
p.y = lat;
return p;
};
exports.names = ["Sinusoidal", "sinu"];
}, { "../common/adjust_lat": 57, "../common/adjust_lon": 58, "../common/asinz": 59, "../common/pj_enfn": 70, "../common/pj_inv_mlfn": 71, "../common/pj_mlfn": 72}], 113: [function (require, module, exports) {
/*
references:
Formules et constantes pour le Calcul pour la
projection cylindrique conforme à axe oblique et pour la transformation entre
des systèmes de référence.
http://www.swisstopo.admin.ch/internet/swisstopo/fr/home/topics/survey/sys/refsys/switzerland.parsysrelated1.31216.downloadList.77004.DownloadFile.tmp/swissprojectionfr.pdf
*/
exports.init = function () {
var phy0 = this.lat0;
this.lambda0 = this.long0;
var sinPhy0 = Math.sin(phy0);
var semiMajorAxis = this.a;
var invF = this.rf;
var flattening = 1 / invF;
var e2 = 2 * flattening - Math.pow(flattening, 2);
var e = this.e = Math.sqrt(e2);
this.R = this.k0 * semiMajorAxis * Math.sqrt(1 - e2) / (1 - e2 * Math.pow(sinPhy0, 2));
this.alpha = Math.sqrt(1 + e2 / (1 - e2) * Math.pow(Math.cos(phy0), 4));
this.b0 = Math.asin(sinPhy0 / this.alpha);
var k1 = Math.log(Math.tan(Math.PI / 4 + this.b0 / 2));
var k2 = Math.log(Math.tan(Math.PI / 4 + phy0 / 2));
var k3 = Math.log((1 + e * sinPhy0) / (1 - e * sinPhy0));
this.K = k1 - this.alpha * k2 + this.alpha * e / 2 * k3;
};
exports.forward = function (p) {
var Sa1 = Math.log(Math.tan(Math.PI / 4 - p.y / 2));
var Sa2 = this.e / 2 * Math.log((1 + this.e * Math.sin(p.y)) / (1 - this.e * Math.sin(p.y)));
var S = -this.alpha * (Sa1 + Sa2) + this.K;
// spheric latitude
var b = 2 * (Math.atan(Math.exp(S)) - Math.PI / 4);
// spheric longitude
var I = this.alpha * (p.x - this.lambda0);
// psoeudo equatorial rotation
var rotI = Math.atan(Math.sin(I) / (Math.sin(this.b0) * Math.tan(b) + Math.cos(this.b0) * Math.cos(I)));
var rotB = Math.asin(Math.cos(this.b0) * Math.sin(b) - Math.sin(this.b0) * Math.cos(b) * Math.cos(I));
p.y = this.R / 2 * Math.log((1 + Math.sin(rotB)) / (1 - Math.sin(rotB))) + this.y0;
p.x = this.R * rotI + this.x0;
return p;
};
exports.inverse = function (p) {
var Y = p.x - this.x0;
var X = p.y - this.y0;
var rotI = Y / this.R;
var rotB = 2 * (Math.atan(Math.exp(X / this.R)) - Math.PI / 4);
var b = Math.asin(Math.cos(this.b0) * Math.sin(rotB) + Math.sin(this.b0) * Math.cos(rotB) * Math.cos(rotI));
var I = Math.atan(Math.sin(rotI) / (Math.cos(this.b0) * Math.cos(rotI) - Math.sin(this.b0) * Math.tan(rotB)));
var lambda = this.lambda0 + I / this.alpha;
var S = 0;
var phy = b;
var prevPhy = -1000;
var iteration = 0;
while (Math.abs(phy - prevPhy) > 0.0000001) {
if (++iteration > 20) {
//...reportError("omercFwdInfinity");
return;
}
//S = Math.log(Math.tan(Math.PI / 4 + phy / 2));
S = 1 / this.alpha * (Math.log(Math.tan(Math.PI / 4 + b / 2)) - this.K) + this.e * Math.log(Math.tan(Math.PI / 4 + Math.asin(this.e * Math.sin(phy)) / 2));
prevPhy = phy;
phy = 2 * Math.atan(Math.exp(S)) - Math.PI / 2;
}
p.x = lambda;
p.y = phy;
return p;
};
exports.names = ["somerc"];
}, {}], 114: [function (require, module, exports) {
var HALF_PI = Math.PI / 2;
var EPSLN = 1.0e-10;
var sign = require('../common/sign');
var msfnz = require('../common/msfnz');
var tsfnz = require('../common/tsfnz');
var phi2z = require('../common/phi2z');
var adjust_lon = require('../common/adjust_lon');
exports.ssfn_ = function (phit, sinphi, eccen) {
sinphi *= eccen;
return (Math.tan(0.5 * (HALF_PI + phit)) * Math.pow((1 - sinphi) / (1 + sinphi), 0.5 * eccen));
};
exports.init = function () {
this.coslat0 = Math.cos(this.lat0);
this.sinlat0 = Math.sin(this.lat0);
if (this.sphere) {
if (this.k0 === 1 && !isNaN(this.lat_ts) && Math.abs(this.coslat0) <= EPSLN) {
this.k0 = 0.5 * (1 + sign(this.lat0) * Math.sin(this.lat_ts));
}
}
else {
if (Math.abs(this.coslat0) <= EPSLN) {
if (this.lat0 > 0) {
//North pole
//trace('stere:north pole');
this.con = 1;
}
else {
//South pole
//trace('stere:south pole');
this.con = -1;
}
}
this.cons = Math.sqrt(Math.pow(1 + this.e, 1 + this.e) * Math.pow(1 - this.e, 1 - this.e));
if (this.k0 === 1 && !isNaN(this.lat_ts) && Math.abs(this.coslat0) <= EPSLN) {
this.k0 = 0.5 * this.cons * msfnz(this.e, Math.sin(this.lat_ts), Math.cos(this.lat_ts)) / tsfnz(this.e, this.con * this.lat_ts, this.con * Math.sin(this.lat_ts));
}
this.ms1 = msfnz(this.e, this.sinlat0, this.coslat0);
this.X0 = 2 * Math.atan(this.ssfn_(this.lat0, this.sinlat0, this.e)) - HALF_PI;
this.cosX0 = Math.cos(this.X0);
this.sinX0 = Math.sin(this.X0);
}
};
// Stereographic forward equations--mapping lat,long to x,y
exports.forward = function (p) {
var lon = p.x;
var lat = p.y;
var sinlat = Math.sin(lat);
var coslat = Math.cos(lat);
var A, X, sinX, cosX, ts, rh;
var dlon = adjust_lon(lon - this.long0);
if (Math.abs(Math.abs(lon - this.long0) - Math.PI) <= EPSLN && Math.abs(lat + this.lat0) <= EPSLN) {
//case of the origine point
//trace('stere:this is the origin point');
p.x = NaN;
p.y = NaN;
return p;
}
if (this.sphere) {
//trace('stere:sphere case');
A = 2 * this.k0 / (1 + this.sinlat0 * sinlat + this.coslat0 * coslat * Math.cos(dlon));
p.x = this.a * A * coslat * Math.sin(dlon) + this.x0;
p.y = this.a * A * (this.coslat0 * sinlat - this.sinlat0 * coslat * Math.cos(dlon)) + this.y0;
return p;
}
else {
X = 2 * Math.atan(this.ssfn_(lat, sinlat, this.e)) - HALF_PI;
cosX = Math.cos(X);
sinX = Math.sin(X);
if (Math.abs(this.coslat0) <= EPSLN) {
ts = tsfnz(this.e, lat * this.con, this.con * sinlat);
rh = 2 * this.a * this.k0 * ts / this.cons;
p.x = this.x0 + rh * Math.sin(lon - this.long0);
p.y = this.y0 - this.con * rh * Math.cos(lon - this.long0);
//trace(p.toString());
return p;
}
else if (Math.abs(this.sinlat0) < EPSLN) {
//Eq
//trace('stere:equateur');
A = 2 * this.a * this.k0 / (1 + cosX * Math.cos(dlon));
p.y = A * sinX;
}
else {
//other case
//trace('stere:normal case');
A = 2 * this.a * this.k0 * this.ms1 / (this.cosX0 * (1 + this.sinX0 * sinX + this.cosX0 * cosX * Math.cos(dlon)));
p.y = A * (this.cosX0 * sinX - this.sinX0 * cosX * Math.cos(dlon)) + this.y0;
}
p.x = A * cosX * Math.sin(dlon) + this.x0;
}
//trace(p.toString());
return p;
};
//* Stereographic inverse equations--mapping x,y to lat/long
exports.inverse = function (p) {
p.x -= this.x0;
p.y -= this.y0;
var lon, lat, ts, ce, Chi;
var rh = Math.sqrt(p.x * p.x + p.y * p.y);
if (this.sphere) {
var c = 2 * Math.atan(rh / (0.5 * this.a * this.k0));
lon = this.long0;
lat = this.lat0;
if (rh <= EPSLN) {
p.x = lon;
p.y = lat;
return p;
}
lat = Math.asin(Math.cos(c) * this.sinlat0 + p.y * Math.sin(c) * this.coslat0 / rh);
if (Math.abs(this.coslat0) < EPSLN) {
if (this.lat0 > 0) {
lon = adjust_lon(this.long0 + Math.atan2(p.x, -1 * p.y));
}
else {
lon = adjust_lon(this.long0 + Math.atan2(p.x, p.y));
}
}
else {
lon = adjust_lon(this.long0 + Math.atan2(p.x * Math.sin(c), rh * this.coslat0 * Math.cos(c) - p.y * this.sinlat0 * Math.sin(c)));
}
p.x = lon;
p.y = lat;
return p;
}
else {
if (Math.abs(this.coslat0) <= EPSLN) {
if (rh <= EPSLN) {
lat = this.lat0;
lon = this.long0;
p.x = lon;
p.y = lat;
//trace(p.toString());
return p;
}
p.x *= this.con;
p.y *= this.con;
ts = rh * this.cons / (2 * this.a * this.k0);
lat = this.con * phi2z(this.e, ts);
lon = this.con * adjust_lon(this.con * this.long0 + Math.atan2(p.x, -1 * p.y));
}
else {
ce = 2 * Math.atan(rh * this.cosX0 / (2 * this.a * this.k0 * this.ms1));
lon = this.long0;
if (rh <= EPSLN) {
Chi = this.X0;
}
else {
Chi = Math.asin(Math.cos(ce) * this.sinX0 + p.y * Math.sin(ce) * this.cosX0 / rh);
lon = adjust_lon(this.long0 + Math.atan2(p.x * Math.sin(ce), rh * this.cosX0 * Math.cos(ce) - p.y * this.sinX0 * Math.sin(ce)));
}
lat = -1 * phi2z(this.e, Math.tan(0.5 * (HALF_PI + Chi)));
}
}
p.x = lon;
p.y = lat;
//trace(p.toString());
return p;
};
exports.names = ["stere", "Stereographic_South_Pole", "Polar Stereographic (variant B)"];
}, { "../common/adjust_lon": 58, "../common/msfnz": 68, "../common/phi2z": 69, "../common/sign": 74, "../common/tsfnz": 77}], 115: [function (require, module, exports) {
var gauss = require('./gauss');
var adjust_lon = require('../common/adjust_lon');
exports.init = function () {
gauss.init.apply(this);
if (!this.rc) {
return;
}
this.sinc0 = Math.sin(this.phic0);
this.cosc0 = Math.cos(this.phic0);
this.R2 = 2 * this.rc;
if (!this.title) {
this.title = "Oblique Stereographic Alternative";
}
};
exports.forward = function (p) {
var sinc, cosc, cosl, k;
p.x = adjust_lon(p.x - this.long0);
gauss.forward.apply(this, [p]);
sinc = Math.sin(p.y);
cosc = Math.cos(p.y);
cosl = Math.cos(p.x);
k = this.k0 * this.R2 / (1 + this.sinc0 * sinc + this.cosc0 * cosc * cosl);
p.x = k * cosc * Math.sin(p.x);
p.y = k * (this.cosc0 * sinc - this.sinc0 * cosc * cosl);
p.x = this.a * p.x + this.x0;
p.y = this.a * p.y + this.y0;
return p;
};
exports.inverse = function (p) {
var sinc, cosc, lon, lat, rho;
p.x = (p.x - this.x0) / this.a;
p.y = (p.y - this.y0) / this.a;
p.x /= this.k0;
p.y /= this.k0;
if ((rho = Math.sqrt(p.x * p.x + p.y * p.y))) {
var c = 2 * Math.atan2(rho, this.R2);
sinc = Math.sin(c);
cosc = Math.cos(c);
lat = Math.asin(cosc * this.sinc0 + p.y * sinc * this.cosc0 / rho);
lon = Math.atan2(p.x * sinc, rho * this.cosc0 * cosc - p.y * this.sinc0 * sinc);
}
else {
lat = this.phic0;
lon = 0;
}
p.x = lon;
p.y = lat;
gauss.inverse.apply(this, [p]);
p.x = adjust_lon(p.x + this.long0);
return p;
};
exports.names = ["Stereographic_North_Pole", "Oblique_Stereographic", "Polar_Stereographic", "sterea", "Oblique Stereographic Alternative"];
}, { "../common/adjust_lon": 58, "./gauss": 100}], 116: [function (require, module, exports) {
var e0fn = require('../common/e0fn');
var e1fn = require('../common/e1fn');
var e2fn = require('../common/e2fn');
var e3fn = require('../common/e3fn');
var mlfn = require('../common/mlfn');
var adjust_lon = require('../common/adjust_lon');
var HALF_PI = Math.PI / 2;
var EPSLN = 1.0e-10;
var sign = require('../common/sign');
var asinz = require('../common/asinz');
exports.init = function () {
this.e0 = e0fn(this.es);
this.e1 = e1fn(this.es);
this.e2 = e2fn(this.es);
this.e3 = e3fn(this.es);
this.ml0 = this.a * mlfn(this.e0, this.e1, this.e2, this.e3, this.lat0);
};
/**
Transverse Mercator Forward - long/lat to x/y
long/lat in radians
*/
exports.forward = function (p) {
var lon = p.x;
var lat = p.y;
var delta_lon = adjust_lon(lon - this.long0);
var con;
var x, y;
var sin_phi = Math.sin(lat);
var cos_phi = Math.cos(lat);
if (this.sphere) {
var b = cos_phi * Math.sin(delta_lon);
if ((Math.abs(Math.abs(b) - 1)) < 0.0000000001) {
return (93);
}
else {
x = 0.5 * this.a * this.k0 * Math.log((1 + b) / (1 - b));
con = Math.acos(cos_phi * Math.cos(delta_lon) / Math.sqrt(1 - b * b));
if (lat < 0) {
con = -con;
}
y = this.a * this.k0 * (con - this.lat0);
}
}
else {
var al = cos_phi * delta_lon;
var als = Math.pow(al, 2);
var c = this.ep2 * Math.pow(cos_phi, 2);
var tq = Math.tan(lat);
var t = Math.pow(tq, 2);
con = 1 - this.es * Math.pow(sin_phi, 2);
var n = this.a / Math.sqrt(con);
var ml = this.a * mlfn(this.e0, this.e1, this.e2, this.e3, lat);
x = this.k0 * n * al * (1 + als / 6 * (1 - t + c + als / 20 * (5 - 18 * t + Math.pow(t, 2) + 72 * c - 58 * this.ep2))) + this.x0;
y = this.k0 * (ml - this.ml0 + n * tq * (als * (0.5 + als / 24 * (5 - t + 9 * c + 4 * Math.pow(c, 2) + als / 30 * (61 - 58 * t + Math.pow(t, 2) + 600 * c - 330 * this.ep2))))) + this.y0;
}
p.x = x;
p.y = y;
return p;
};
/**
Transverse Mercator Inverse - x/y to long/lat
*/
exports.inverse = function (p) {
var con, phi;
var delta_phi;
var i;
var max_iter = 6;
var lat, lon;
if (this.sphere) {
var f = Math.exp(p.x / (this.a * this.k0));
var g = 0.5 * (f - 1 / f);
var temp = this.lat0 + p.y / (this.a * this.k0);
var h = Math.cos(temp);
con = Math.sqrt((1 - h * h) / (1 + g * g));
lat = asinz(con);
if (temp < 0) {
lat = -lat;
}
if ((g === 0) && (h === 0)) {
lon = this.long0;
}
else {
lon = adjust_lon(Math.atan2(g, h) + this.long0);
}
}
else { // ellipsoidal form
var x = p.x - this.x0;
var y = p.y - this.y0;
con = (this.ml0 + y / this.k0) / this.a;
phi = con;
for (i = 0; true; i++) {
delta_phi = ((con + this.e1 * Math.sin(2 * phi) - this.e2 * Math.sin(4 * phi) + this.e3 * Math.sin(6 * phi)) / this.e0) - phi;
phi += delta_phi;
if (Math.abs(delta_phi) <= EPSLN) {
break;
}
if (i >= max_iter) {
return (95);
}
} // for()
if (Math.abs(phi) < HALF_PI) {
var sin_phi = Math.sin(phi);
var cos_phi = Math.cos(phi);
var tan_phi = Math.tan(phi);
var c = this.ep2 * Math.pow(cos_phi, 2);
var cs = Math.pow(c, 2);
var t = Math.pow(tan_phi, 2);
var ts = Math.pow(t, 2);
con = 1 - this.es * Math.pow(sin_phi, 2);
var n = this.a / Math.sqrt(con);
var r = n * (1 - this.es) / con;
var d = x / (n * this.k0);
var ds = Math.pow(d, 2);
lat = phi - (n * tan_phi * ds / r) * (0.5 - ds / 24 * (5 + 3 * t + 10 * c - 4 * cs - 9 * this.ep2 - ds / 30 * (61 + 90 * t + 298 * c + 45 * ts - 252 * this.ep2 - 3 * cs)));
lon = adjust_lon(this.long0 + (d * (1 - ds / 6 * (1 + 2 * t + c - ds / 20 * (5 - 2 * c + 28 * t - 3 * cs + 8 * this.ep2 + 24 * ts))) / cos_phi));
}
else {
lat = HALF_PI * sign(y);
lon = this.long0;
}
}
p.x = lon;
p.y = lat;
return p;
};
exports.names = ["Transverse_Mercator", "Transverse Mercator", "tmerc"];
}, { "../common/adjust_lon": 58, "../common/asinz": 59, "../common/e0fn": 60, "../common/e1fn": 61, "../common/e2fn": 62, "../common/e3fn": 63, "../common/mlfn": 67, "../common/sign": 74}], 117: [function (require, module, exports) {
var D2R = 0.01745329251994329577;
var tmerc = require('./tmerc');
exports.dependsOn = 'tmerc';
exports.init = function () {
if (!this.zone) {
return;
}
this.lat0 = 0;
this.long0 = ((6 * Math.abs(this.zone)) - 183) * D2R;
this.x0 = 500000;
this.y0 = this.utmSouth ? 10000000 : 0;
this.k0 = 0.9996;
tmerc.init.apply(this);
this.forward = tmerc.forward;
this.inverse = tmerc.inverse;
};
exports.names = ["Universal Transverse Mercator System", "utm"];
}, { "./tmerc": 116}], 118: [function (require, module, exports) {
var adjust_lon = require('../common/adjust_lon');
var HALF_PI = Math.PI / 2;
var EPSLN = 1.0e-10;
var asinz = require('../common/asinz');
/* Initialize the Van Der Grinten projection
----------------------------------------*/
exports.init = function () {
//this.R = 6370997; //Radius of earth
this.R = this.a;
};
exports.forward = function (p) {
var lon = p.x;
var lat = p.y;
/* Forward equations
-----------------*/
var dlon = adjust_lon(lon - this.long0);
var x, y;
if (Math.abs(lat) <= EPSLN) {
x = this.x0 + this.R * dlon;
y = this.y0;
}
var theta = asinz(2 * Math.abs(lat / Math.PI));
if ((Math.abs(dlon) <= EPSLN) || (Math.abs(Math.abs(lat) - HALF_PI) <= EPSLN)) {
x = this.x0;
if (lat >= 0) {
y = this.y0 + Math.PI * this.R * Math.tan(0.5 * theta);
}
else {
y = this.y0 + Math.PI * this.R * -Math.tan(0.5 * theta);
}
// return(OK);
}
var al = 0.5 * Math.abs((Math.PI / dlon) - (dlon / Math.PI));
var asq = al * al;
var sinth = Math.sin(theta);
var costh = Math.cos(theta);
var g = costh / (sinth + costh - 1);
var gsq = g * g;
var m = g * (2 / sinth - 1);
var msq = m * m;
var con = Math.PI * this.R * (al * (g - msq) + Math.sqrt(asq * (g - msq) * (g - msq) - (msq + asq) * (gsq - msq))) / (msq + asq);
if (dlon < 0) {
con = -con;
}
x = this.x0 + con;
//con = Math.abs(con / (Math.PI * this.R));
var q = asq + g;
con = Math.PI * this.R * (m * q - al * Math.sqrt((msq + asq) * (asq + 1) - q * q)) / (msq + asq);
if (lat >= 0) {
//y = this.y0 + Math.PI * this.R * Math.sqrt(1 - con * con - 2 * al * con);
y = this.y0 + con;
}
else {
//y = this.y0 - Math.PI * this.R * Math.sqrt(1 - con * con - 2 * al * con);
y = this.y0 - con;
}
p.x = x;
p.y = y;
return p;
};
/* Van Der Grinten inverse equations--mapping x,y to lat/long
---------------------------------------------------------*/
exports.inverse = function (p) {
var lon, lat;
var xx, yy, xys, c1, c2, c3;
var a1;
var m1;
var con;
var th1;
var d;
/* inverse equations
-----------------*/
p.x -= this.x0;
p.y -= this.y0;
con = Math.PI * this.R;
xx = p.x / con;
yy = p.y / con;
xys = xx * xx + yy * yy;
c1 = -Math.abs(yy) * (1 + xys);
c2 = c1 - 2 * yy * yy + xx * xx;
c3 = -2 * c1 + 1 + 2 * yy * yy + xys * xys;
d = yy * yy / c3 + (2 * c2 * c2 * c2 / c3 / c3 / c3 - 9 * c1 * c2 / c3 / c3) / 27;
a1 = (c1 - c2 * c2 / 3 / c3) / c3;
m1 = 2 * Math.sqrt(-a1 / 3);
con = ((3 * d) / a1) / m1;
if (Math.abs(con) > 1) {
if (con >= 0) {
con = 1;
}
else {
con = -1;
}
}
th1 = Math.acos(con) / 3;
if (p.y >= 0) {
lat = (-m1 * Math.cos(th1 + Math.PI / 3) - c2 / 3 / c3) * Math.PI;
}
else {
lat = -(-m1 * Math.cos(th1 + Math.PI / 3) - c2 / 3 / c3) * Math.PI;
}
if (Math.abs(xx) < EPSLN) {
lon = this.long0;
}
else {
lon = adjust_lon(this.long0 + Math.PI * (xys - 1 + Math.sqrt(1 + 2 * (xx * xx - yy * yy) + xys * xys)) / 2 / xx);
}
p.x = lon;
p.y = lat;
return p;
};
exports.names = ["Van_der_Grinten_I", "VanDerGrinten", "vandg"];
}, { "../common/adjust_lon": 58, "../common/asinz": 59}], 119: [function (require, module, exports) {
var D2R = 0.01745329251994329577;
var R2D = 57.29577951308232088;
var PJD_3PARAM = 1;
var PJD_7PARAM = 2;
var datum_transform = require('./datum_transform');
var adjust_axis = require('./adjust_axis');
var proj = require('./Proj');
var toPoint = require('./common/toPoint');
module.exports = function transform(source, dest, point) {
var wgs84;
if (Array.isArray(point)) {
point = toPoint(point);
}
function checkNotWGS(source, dest) {
return ((source.datum.datum_type === PJD_3PARAM || source.datum.datum_type === PJD_7PARAM) && dest.datumCode !== "WGS84");
}
// Workaround for datum shifts towgs84, if either source or destination projection is not wgs84
if (source.datum && dest.datum && (checkNotWGS(source, dest) || checkNotWGS(dest, source))) {
wgs84 = new proj('WGS84');
transform(source, wgs84, point);
source = wgs84;
}
// DGR, 2010/11/12
if (source.axis !== "enu") {
adjust_axis(source, false, point);
}
// Transform source points to long/lat, if they aren't already.
if (source.projName === "longlat") {
point.x *= D2R; // convert degrees to radians
point.y *= D2R;
}
else {
if (source.to_meter) {
point.x *= source.to_meter;
point.y *= source.to_meter;
}
source.inverse(point); // Convert Cartesian to longlat
}
// Adjust for the prime meridian if necessary
if (source.from_greenwich) {
point.x += source.from_greenwich;
}
// Convert datums if needed, and if possible.
point = datum_transform(source.datum, dest.datum, point);
// Adjust for the prime meridian if necessary
if (dest.from_greenwich) {
point.x -= dest.from_greenwich;
}
if (dest.projName === "longlat") {
// convert radians to decimal degrees
point.x *= R2D;
point.y *= R2D;
}
else { // else project
dest.forward(point);
if (dest.to_meter) {
point.x /= dest.to_meter;
point.y /= dest.to_meter;
}
}
// DGR, 2010/11/12
if (dest.axis !== "enu") {
adjust_axis(dest, true, point);
}
return point;
};
}, { "./Proj": 55, "./adjust_axis": 56, "./common/toPoint": 76, "./datum_transform": 84}], 120: [function (require, module, exports) {
var D2R = 0.01745329251994329577;
var extend = require('./extend');
function mapit(obj, key, v) {
obj[key] = v.map(function (aa) {
var o = {};
sExpr(aa, o);
return o;
}).reduce(function (a, b) {
return extend(a, b);
}, {});
}
function sExpr(v, obj) {
var key;
if (!Array.isArray(v)) {
obj[v] = true;
return;
}
else {
key = v.shift();
if (key === 'PARAMETER') {
key = v.shift();
}
if (v.length === 1) {
if (Array.isArray(v[0])) {
obj[key] = {};
sExpr(v[0], obj[key]);
}
else {
obj[key] = v[0];
}
}
else if (!v.length) {
obj[key] = true;
}
else if (key === 'TOWGS84') {
obj[key] = v;
}
else {
obj[key] = {};
if (['UNIT', 'PRIMEM', 'VERT_DATUM'].indexOf(key) > -1) {
obj[key] = {
name: v[0].toLowerCase(),
convert: v[1]
};
if (v.length === 3) {
obj[key].auth = v[2];
}
}
else if (key === 'SPHEROID') {
obj[key] = {
name: v[0],
a: v[1],
rf: v[2]
};
if (v.length === 4) {
obj[key].auth = v[3];
}
}
else if (['GEOGCS', 'GEOCCS', 'DATUM', 'VERT_CS', 'COMPD_CS', 'LOCAL_CS', 'FITTED_CS', 'LOCAL_DATUM'].indexOf(key) > -1) {
v[0] = ['name', v[0]];
mapit(obj, key, v);
}
else if (v.every(function (aa) {
return Array.isArray(aa);
})) {
mapit(obj, key, v);
}
else {
sExpr(v, obj[key]);
}
}
}
}
function rename(obj, params) {
var outName = params[0];
var inName = params[1];
if (!(outName in obj) && (inName in obj)) {
obj[outName] = obj[inName];
if (params.length === 3) {
obj[outName] = params[2](obj[outName]);
}
}
}
function d2r(input) {
return input * D2R;
}
function cleanWKT(wkt) {
if (wkt.type === 'GEOGCS') {
wkt.projName = 'longlat';
}
else if (wkt.type === 'LOCAL_CS') {
wkt.projName = 'identity';
wkt.local = true;
}
else {
if (typeof wkt.PROJECTION === "object") {
wkt.projName = Object.keys(wkt.PROJECTION)[0];
}
else {
wkt.projName = wkt.PROJECTION;
}
}
if (wkt.UNIT) {
wkt.units = wkt.UNIT.name.toLowerCase();
if (wkt.units === 'metre') {
wkt.units = 'meter';
}
if (wkt.UNIT.convert) {
if (wkt.type === 'GEOGCS') {
if (wkt.DATUM && wkt.DATUM.SPHEROID) {
wkt.to_meter = parseFloat(wkt.UNIT.convert, 10) * wkt.DATUM.SPHEROID.a;
}
} else {
wkt.to_meter = parseFloat(wkt.UNIT.convert, 10);
}
}
}
if (wkt.GEOGCS) {
//if(wkt.GEOGCS.PRIMEM&&wkt.GEOGCS.PRIMEM.convert){
// wkt.from_greenwich=wkt.GEOGCS.PRIMEM.convert*D2R;
//}
if (wkt.GEOGCS.DATUM) {
wkt.datumCode = wkt.GEOGCS.DATUM.name.toLowerCase();
}
else {
wkt.datumCode = wkt.GEOGCS.name.toLowerCase();
}
if (wkt.datumCode.slice(0, 2) === 'd_') {
wkt.datumCode = wkt.datumCode.slice(2);
}
if (wkt.datumCode === 'new_zealand_geodetic_datum_1949' || wkt.datumCode === 'new_zealand_1949') {
wkt.datumCode = 'nzgd49';
}
if (wkt.datumCode === "wgs_1984") {
if (wkt.PROJECTION === 'Mercator_Auxiliary_Sphere') {
wkt.sphere = true;
}
wkt.datumCode = 'wgs84';
}
if (wkt.datumCode.slice(-6) === '_ferro') {
wkt.datumCode = wkt.datumCode.slice(0, -6);
}
if (wkt.datumCode.slice(-8) === '_jakarta') {
wkt.datumCode = wkt.datumCode.slice(0, -8);
}
if (~wkt.datumCode.indexOf('belge')) {
wkt.datumCode = "rnb72";
}
if (wkt.GEOGCS.DATUM && wkt.GEOGCS.DATUM.SPHEROID) {
wkt.ellps = wkt.GEOGCS.DATUM.SPHEROID.name.replace('_19', '').replace(/[Cc]larke\_18/, 'clrk');
if (wkt.ellps.toLowerCase().slice(0, 13) === "international") {
wkt.ellps = 'intl';
}
wkt.a = wkt.GEOGCS.DATUM.SPHEROID.a;
wkt.rf = parseFloat(wkt.GEOGCS.DATUM.SPHEROID.rf, 10);
}
if (~wkt.datumCode.indexOf('osgb_1936')) {
wkt.datumCode = "osgb36";
}
}
if (wkt.b && !isFinite(wkt.b)) {
wkt.b = wkt.a;
}
function toMeter(input) {
var ratio = wkt.to_meter || 1;
return parseFloat(input, 10) * ratio;
}
var renamer = function (a) {
return rename(wkt, a);
};
var list = [
['standard_parallel_1', 'Standard_Parallel_1'],
['standard_parallel_2', 'Standard_Parallel_2'],
['false_easting', 'False_Easting'],
['false_northing', 'False_Northing'],
['central_meridian', 'Central_Meridian'],
['latitude_of_origin', 'Latitude_Of_Origin'],
['latitude_of_origin', 'Central_Parallel'],
['scale_factor', 'Scale_Factor'],
['k0', 'scale_factor'],
['latitude_of_center', 'Latitude_of_center'],
['lat0', 'latitude_of_center', d2r],
['longitude_of_center', 'Longitude_Of_Center'],
['longc', 'longitude_of_center', d2r],
['x0', 'false_easting', toMeter],
['y0', 'false_northing', toMeter],
['long0', 'central_meridian', d2r],
['lat0', 'latitude_of_origin', d2r],
['lat0', 'standard_parallel_1', d2r],
['lat1', 'standard_parallel_1', d2r],
['lat2', 'standard_parallel_2', d2r],
['alpha', 'azimuth', d2r],
['srsCode', 'name']
];
list.forEach(renamer);
if (!wkt.long0 && wkt.longc && (wkt.projName === 'Albers_Conic_Equal_Area' || wkt.projName === "Lambert_Azimuthal_Equal_Area")) {
wkt.long0 = wkt.longc;
}
if (!wkt.lat_ts && wkt.lat1 && (wkt.projName === 'Stereographic_South_Pole' || wkt.projName === 'Polar Stereographic (variant B)')) {
wkt.lat0 = d2r(wkt.lat1 > 0 ? 90 : -90);
wkt.lat_ts = wkt.lat1;
}
}
module.exports = function (wkt, self) {
var lisp = JSON.parse(("," + wkt).replace(/\s*\,\s*([A-Z_0-9]+?)(\[)/g, ',["$1",').slice(1).replace(/\s*\,\s*([A-Z_0-9]+?)\]/g, ',"$1"]').replace(/,\["VERTCS".+/, ''));
var type = lisp.shift();
var name = lisp.shift();
lisp.unshift(['name', name]);
lisp.unshift(['type', type]);
lisp.unshift('output');
var obj = {};
sExpr(lisp, obj);
cleanWKT(obj.output);
return extend(self, obj.output);
};
}, { "./extend": 87}], 121: [function (require, module, exports) {
module.exports = {
"_args": [
[
"proj4@^2.1.4",
"/Users/cmetcalf/projects/shapefile-js"
]
],
"_from": "proj4@>=2.1.4 <3.0.0",
"_id": "proj4@2.3.14",
"_inCache": true,
"_installable": true,
"_location": "/proj4",
"_nodeVersion": "4.2.6",
"_npmOperationalInternal": {
"host": "packages-13-west.internal.npmjs.com",
"tmp": "tmp/proj4-2.3.14.tgz_1457689264880_0.9409773757215589"
},
"_npmUser": {
"email": "andreas.hocevar@gmail.com",
"name": "ahocevar"
},
"_npmVersion": "2.14.12",
"_phantomChildren": {},
"_requested": {
"name": "proj4",
"raw": "proj4@^2.1.4",
"rawSpec": "^2.1.4",
"scope": null,
"spec": ">=2.1.4 <3.0.0",
"type": "range"
},
"_requiredBy": [
"/"
],
"_resolved": "https://registry.npmjs.org/proj4/-/proj4-2.3.14.tgz",
"_shasum": "928906144388980c914c5a357fc493aba59a747a",
"_shrinkwrap": null,
"_spec": "proj4@^2.1.4",
"_where": "/Users/cmetcalf/projects/shapefile-js",
"author": "",
"bugs": {
"url": "https://github.com/proj4js/proj4js/issues"
},
"contributors": [
{
"name": "Mike Adair",
"email": "madair@dmsolutions.ca"
},
{
"name": "Richard Greenwood",
"email": "rich@greenwoodmap.com"
},
{
"name": "Calvin Metcalf",
"email": "calvin.metcalf@gmail.com"
},
{
"name": "Richard Marsden",
"url": "http://www.winwaed.com"
},
{
"name": "T. Mittan"
},
{
"name": "D. Steinwand"
},
{
"name": "S. Nelson"
}
],
"dependencies": {
"mgrs": "~0.0.2"
},
"description": "Proj4js is a JavaScript library to transform point coordinates from one coordinate system to another, including datum transformations.",
"devDependencies": {
"browserify": "~12.0.1",
"chai": "~1.8.1",
"curl": "git://github.com/cujojs/curl.git",
"grunt": "~0.4.2",
"grunt-browserify": "~4.0.1",
"grunt-cli": "~0.1.13",
"grunt-contrib-connect": "~0.6.0",
"grunt-contrib-jshint": "~0.8.0",
"grunt-contrib-uglify": "~0.11.1",
"grunt-mocha-phantomjs": "~0.4.0",
"istanbul": "~0.2.4",
"mocha": "~1.17.1",
"tin": "~0.4.0"
},
"directories": {
"doc": "docs",
"test": "test"
},
"dist": {
"shasum": "928906144388980c914c5a357fc493aba59a747a",
"tarball": "http://registry.npmjs.org/proj4/-/proj4-2.3.14.tgz"
},
"gitHead": "7619c8a63df1eae5bad0b9ad31ca1d87b0549243",
"homepage": "https://github.com/proj4js/proj4js#readme",
"jam": {
"include": [
"AUTHORS",
"LICENSE.md",
"README.md",
"dist/proj4.js"
],
"main": "dist/proj4.js"
},
"license": "MIT",
"main": "lib/index.js",
"maintainers": [
{
"name": "cwmma",
"email": "calvin.metcalf@gmail.com"
},
{
"name": "ahocevar",
"email": "andreas.hocevar@gmail.com"
}
],
"name": "proj4",
"optionalDependencies": {},
"readme": "ERROR: No README data found!",
"repository": {
"type": "git",
"url": "git://github.com/proj4js/proj4js.git"
},
"scripts": {
"test": "./node_modules/istanbul/lib/cli.js test ./node_modules/mocha/bin/_mocha test/test.js"
},
"version": "2.3.14"
}
}, {}], 122: [function (require, module, exports) {
(function (Buffer) {
'use strict';
var proj4 = require('proj4');
var unzip = require('./unzip');
var binaryAjax = require('./binaryajax');
var parseShp = require('./parseShp');
var toArrayBuffer = require('./toArrayBuffer');
var parseDbf = require('parsedbf');
var Promise = require('lie');
var Cache = require('lru-cache');
var cache = new Cache({
max: 20
});
function shp(base, whiteList) {
if (typeof base === 'string' && cache.has(base)) {
return Promise.resolve(cache.get(base));
}
return shp.getShapefile(base, whiteList).then(function (resp) {
if (typeof base === 'string') {
cache.set(base, resp);
}
return resp;
});
}
shp.combine = function (arr) {
var out = {};
out.type = 'FeatureCollection';
out.features = [];
var i = 0;
var len = arr[0].length;
while (i < len) {
out.features.push({
'type': 'Feature',
'geometry': arr[0][i],
'properties': arr[1][i]
});
i++;
}
return out;
};
shp.parseZip = function (buffer, whiteList) {
var key;
var zip = unzip(buffer);
var names = [];
whiteList = whiteList || [];
for (key in zip) {
if (key.indexOf('__MACOSX') !== -1) {
continue;
}
if (key.slice(-3).toLowerCase() === 'shp') {
names.push(key.slice(0, -4));
zip[key.slice(0, -3) + key.slice(-3).toLowerCase()] = zip[key];
}
else if (key.slice(-3).toLowerCase() === 'dbf') {
zip[key.slice(0, -3) + key.slice(-3).toLowerCase()] = parseDbf(zip[key]);
}
else if (key.slice(-3).toLowerCase() === 'prj') {
zip[key.slice(0, -3) + key.slice(-3).toLowerCase()] = proj4(zip[key]);
}
else if (key.slice(-4).toLowerCase() === 'json' || whiteList.indexOf(key.split('.').pop()) > -1) {
names.push(key.slice(0, -3) + key.slice(-3).toLowerCase());
}
}
if (!names.length) {
throw new Error('no layers founds');
}
var geojson = names.map(function (name) {
var parsed;
var lastDotIdx = name.lastIndexOf('.');
if (lastDotIdx > -1 && name.slice(lastDotIdx).indexOf('json') > -1) {
parsed = JSON.parse(zip[name]);
parsed.fileName = name.slice(0, lastDotIdx);
}
else if (whiteList.indexOf(name.slice(lastDotIdx + 1)) > -1) {
parsed = zip[name];
parsed.fileName = name;
}
else {
parsed = shp.combine([parseShp(zip[name + '.shp'], zip[name + '.prj']), zip[name + '.dbf']]);
parsed.fileName = name;
}
return parsed;
});
if (geojson.length === 1) {
return geojson[0];
}
else {
return geojson;
}
};
shp.proj4 = proj4;
shp.unzip = unzip;
shp.Promise = Promise;
shp.toArrayBuffer = toArrayBuffer;
function getZip(base, whiteList) {
return binaryAjax(base).then(function (a) {
return shp.parseZip(a, whiteList);
});
}
shp.getShapefile = function (base, whiteList) {
if (typeof base === 'string') {
if (base.slice(-4) === '.zip') {
return getZip(base, whiteList);
}
else {
return Promise.all([
Promise.all([
binaryAjax(base + '.shp'),
binaryAjax(base + '.prj')
]).then(function (args) {
return parseShp(args[0], args[1] ? proj4(args[1]) : false);
}),
binaryAjax(base + '.dbf').then(parseDbf)
]).then(shp.combine);
}
}
else {
return new Promise(function (resolve) {
resolve(shp.parseZip(base));
});
}
};
shp.parseShp = function (shp, prj) {
if (Buffer.isBuffer(shp)) {
shp = toArrayBuffer(shp);
}
if (Buffer.isBuffer(prj)) {
prj = prj.toString();
}
if (typeof prj === 'string') {
prj = proj4(prj);
return parseShp(shp, prj);
} else {
return parseShp(shp);
}
};
shp.parseDbf = function (dbf) {
if (Buffer.isBuffer(dbf)) {
dbf = toArrayBuffer(dbf);
}
return parseDbf(dbf);
};
module.exports = shp;
}).call(this, { "isBuffer": require("../node_modules/is-buffer/index.js") })
}, { "../node_modules/is-buffer/index.js": 10, "./binaryajax": 1, "./parseShp": 2, "./toArrayBuffer": 3, "./unzip": 4, "lie": 34, "lru-cache": 35, "parsedbf": 53, "proj4": 90}]
}, {}, [122])(122)
});
(function e(t, n, r) {
function s(o, u) {
if (!n[o]) {
if (!t[o]) {
var a = typeof require == "function" && require; if (!u && a) return a(o, !0); if (i) return i(o, !0); throw new Error("Cannot find module '" + o + "'")
}
var f = n[o] = { exports: {} }; t[o][0].call(f.exports, function (e) { var n = t[o][1][e]; return s(n ? n : e) }, f, f.exports, e, t, n, r)
}
return n[o].exports
}
var i = typeof require == "function" && require;
for (var o = 0; o < r.length; o++)
s(r[o]);
return s
})({
1: [function (require, module, exports) {
module.exports = require("topojson"); //topojson =
}, { "topojson": 2}],
2: [
function (require, module, exports) {
var topojson = module.exports = require("./topojson");
topojson.topology = require("./lib/topojson/topology");
topojson.simplify = require("./lib/topojson/simplify");
topojson.clockwise = require("./lib/topojson/clockwise");
topojson.filter = require("./lib/topojson/filter");
topojson.prune = require("./lib/topojson/prune");
topojson.bind = require("./lib/topojson/bind");
},
{ "./lib/topojson/bind": 3,
"./lib/topojson/clockwise": 6,
"./lib/topojson/filter": 10,
"./lib/topojson/prune": 13,
"./lib/topojson/simplify": 15,
"./lib/topojson/topology": 18,
"./topojson": 29
}],
3: [function (require, module, exports) {
var type = require("./type"),
topojson = require("../../");
module.exports = function (topology, propertiesById) {
var bind = type({
geometry: function (geometry) {
var properties0 = geometry.properties,
properties1 = propertiesById[geometry.id];
if (properties1) {
if (properties0) for (var k in properties1) properties0[k] = properties1[k];
else for (var k in properties1) { geometry.properties = properties1; break; }
}
this.defaults.geometry.call(this, geometry);
},
LineString: noop,
MultiLineString: noop,
Point: noop,
MultiPoint: noop,
Polygon: noop,
MultiPolygon: noop
});
for (var key in topology.objects) {
bind.object(topology.objects[key]);
}
};
function noop() { }
}, { "../../": 2, "./type": 28}],
4: [function (require, module, exports) {
// Computes the bounding box of the specified hash of GeoJSON objects.
module.exports = function (objects) {
var x0 = Infinity,
y0 = Infinity,
x1 = -Infinity,
y1 = -Infinity;
function boundGeometry(geometry) {
if (geometry && boundGeometryType.hasOwnProperty(geometry.type)) boundGeometryType[geometry.type](geometry);
}
var boundGeometryType = {
GeometryCollection: function (o) { o.geometries.forEach(boundGeometry); },
Point: function (o) { boundPoint(o.coordinates); },
MultiPoint: function (o) { o.coordinates.forEach(boundPoint); },
LineString: function (o) { boundLine(o.coordinates); },
MultiLineString: function (o) { o.coordinates.forEach(boundLine); },
Polygon: function (o) { o.coordinates.forEach(boundLine); },
MultiPolygon: function (o) { o.coordinates.forEach(boundMultiLine); }
};
function boundPoint(coordinates) {
var x = coordinates[0],
y = coordinates[1];
if (x < x0) x0 = x;
if (x > x1) x1 = x;
if (y < y0) y0 = y;
if (y > y1) y1 = y;
}
function boundLine(coordinates) {
coordinates.forEach(boundPoint);
}
function boundMultiLine(coordinates) {
coordinates.forEach(boundLine);
}
for (var key in objects) {
boundGeometry(objects[key]);
}
return [x0, y0, x1, y1];
};
}, {}],
5: [function (require, module, exports) {
exports.name = "cartesian";
exports.formatDistance = formatDistance;
exports.ringArea = ringArea;
exports.absoluteArea = Math.abs;
exports.triangleArea = triangleArea;
exports.distance = distance;
function formatDistance(d) {
return d.toString();
}
function ringArea(ring) {
var i = 0,
n = ring.length,
area = ring[n - 1][1] * ring[0][0] - ring[n - 1][0] * ring[0][1];
while (++i < n) {
area += ring[i - 1][1] * ring[i][0] - ring[i - 1][0] * ring[i][1];
}
return -area * .5; // ensure clockwise pixel areas are positive
}
function triangleArea(triangle) {
return Math.abs(
(triangle[0][0] - triangle[2][0]) * (triangle[1][1] - triangle[0][1])
- (triangle[0][0] - triangle[1][0]) * (triangle[2][1] - triangle[0][1])
);
}
function distance(x0, y0, x1, y1) {
var dx = x0 - x1, dy = y0 - y1;
return Math.sqrt(dx * dx + dy * dy);
}
}, {}],
6: [function (require, module, exports) {
var type = require("./type"),
systems = require("./coordinate-systems"),
topojson = require("../../");
module.exports = function (object, options) {
if (object.type === "Topology") clockwiseTopology(object, options);
else clockwiseGeometry(object, options);
};
function clockwiseGeometry(object, options) {
var system = null;
if (options)
"coordinate-system" in options && (system = systems[options["coordinate-system"]]);
var clockwisePolygon = clockwisePolygonSystem(system.ringArea, reverse);
type({
LineString: noop,
MultiLineString: noop,
Point: noop,
MultiPoint: noop,
Polygon: function (polygon) { clockwisePolygon(polygon.coordinates); },
MultiPolygon: function (multiPolygon) { multiPolygon.coordinates.forEach(clockwisePolygon); }
}).object(object);
function reverse(array) { array.reverse(); }
}
function clockwiseTopology(topology, options) {
var system = null;
if (options)
"coordinate-system" in options && (system = systems[options["coordinate-system"]]);
var clockwisePolygon = clockwisePolygonSystem(ringArea, reverse);
var clockwise = type({
LineString: noop,
MultiLineString: noop,
Point: noop,
MultiPoint: noop,
Polygon: function (polygon) { clockwisePolygon(polygon.arcs); },
MultiPolygon: function (multiPolygon) { multiPolygon.arcs.forEach(clockwisePolygon); }
});
for (var key in topology.objects) {
clockwise.object(topology.objects[key]);
}
function ringArea(ring) {
return system.ringArea(topojson.feature(topology, { type: "Polygon", arcs: [ring] }).geometry.coordinates[0]);
}
// TODO It might be slightly more compact to reverse the arc.
function reverse(ring) {
var i = -1, n = ring.length;
ring.reverse();
while (++i < n) ring[i] = ~ring[i];
}
};
function clockwisePolygonSystem(ringArea, reverse) {
return function (rings) {
if (!(n = rings.length)) return;
var n,
areas = new Array(n),
max = -Infinity,
best,
area,
t;
// Find the largest absolute ring area; this should be the exterior ring.
for (var i = 0; i < n; ++i) {
var area = Math.abs(areas[i] = ringArea(rings[i]));
if (area > max) max = area, best = i;
}
// Ensure the largest ring appears first.
if (best) {
t = rings[best], rings[best] = rings[0], rings[0] = t;
t = areas[best], areas[best] = areas[0], areas[0] = t;
}
if (areas[0] < 0) reverse(rings[0]);
for (var i = 1; i < n; ++i) {
if (areas[i] > 0) reverse(rings[i]);
}
};
}
function noop() { }
}, { "../../": 2, "./coordinate-systems": 8, "./type": 28}],
7: [function (require, module, exports) {
// Given a hash of GeoJSON objects and an id function, invokes the id function
// to compute a new id for each object that is a feature. The function is passed
// the feature and is expected to return the new feature id, or null if the
// feature should not have an id.
module.exports = function (objects, id) {
if (arguments.length < 2) id = function (d) { return d.id; };
function idObject(object) {
if (object && idObjectType.hasOwnProperty(object.type)) idObjectType[object.type](object);
}
function idFeature(feature) {
var i = id(feature);
if (i == null) delete feature.id;
else feature.id = i;
}
var idObjectType = {
Feature: idFeature,
FeatureCollection: function (collection) { collection.features.forEach(idFeature); }
};
for (var key in objects) {
idObject(objects[key]);
}
return objects;
};
}, {}],
8: [function (require, module, exports) {
module.exports = {
cartesian: require("./cartesian"),
spherical: require("./spherical")
};
}, { "./cartesian": 5, "./spherical": 16}],
9: [function (require, module, exports) {
// Given a TopoJSON topology in absolute (quantized) coordinates,
// converts to fixed-point delta encoding.
// This is a destructive operation that modifies the given topology!
module.exports = function (topology) {
var arcs = topology.arcs,
i = -1,
n = arcs.length;
while (++i < n) {
var arc = arcs[i],
j = 0,
m = arc.length,
point = arc[0],
x0 = point[0],
y0 = point[1],
x1,
y1;
while (++j < m) {
point = arc[j];
x1 = point[0];
y1 = point[1];
arc[j] = [x1 - x0, y1 - y0];
x0 = x1;
y0 = y1;
}
}
return topology;
};
}, {}],
10: [function (require, module, exports) {
var type = require("./type"),
prune = require("./prune"),
clockwise = require("./clockwise"),
systems = require("./coordinate-systems"),
topojson = require("../../");
module.exports = function (topology, options) {
var system = null,
forceClockwise = true, // force exterior rings to be clockwise?
minimumArea;
if (options)
"coordinate-system" in options && (system = systems[options["coordinate-system"]]),
"minimum-area" in options && (minimumArea = +options["minimum-area"]),
"force-clockwise" in options && (forceClockwise = !!options["force-clockwise"]);
if (forceClockwise) clockwise(topology, options); // deprecated; for backwards-compatibility
if (!(minimumArea > 0)) minimumArea = Number.MIN_VALUE;
var filter = type({
LineString: noop, // TODO remove empty lines
MultiLineString: noop,
Point: noop,
MultiPoint: noop,
Polygon: function (polygon) {
polygon.arcs = polygon.arcs.filter(ringArea);
if (!polygon.arcs.length) {
polygon.type = null;
delete polygon.arcs;
}
},
MultiPolygon: function (multiPolygon) {
multiPolygon.arcs = multiPolygon.arcs.map(function (polygon) {
return polygon.filter(ringArea);
}).filter(function (polygon) {
return polygon.length;
});
if (!multiPolygon.arcs.length) {
multiPolygon.type = null;
delete multiPolygon.arcs;
}
},
GeometryCollection: function (collection) {
this.defaults.GeometryCollection.call(this, collection);
collection.geometries = collection.geometries.filter(function (geometry) { return geometry.type != null; });
if (!collection.geometries.length) {
collection.type = null;
delete collection.geometries;
}
}
});
for (var key in topology.objects) {
filter.object(topology.objects[key]);
}
prune(topology, options);
function ringArea(ring) {
var topopolygon = { type: "Polygon", arcs: [ring] },
geopolygon = topojson.feature(topology, topopolygon),
exterior = geopolygon.geometry.coordinates[0],
exteriorArea = system.absoluteArea(system.ringArea(exterior));
return exteriorArea >= minimumArea;
}
};
function noop() { }
}, { "../../": 2, "./clockwise": 6, "./coordinate-systems": 8, "./prune": 13, "./type": 28}],
11: [function (require, module, exports) {
// Given a hash of GeoJSON objects, replaces Features with geometry objects.
// This is a destructive operation that modifies the input objects!
module.exports = function (objects) {
function geomifyObject(object) {
return (object && geomifyObjectType.hasOwnProperty(object.type)
? geomifyObjectType[object.type]
: geomifyGeometry)(object);
}
function geomifyFeature(feature) {
var geometry = feature.geometry;
if (geometry == null) {
feature.type = null;
} else {
geomifyGeometry(geometry);
feature.type = geometry.type;
if (geometry.geometries) feature.geometries = geometry.geometries;
else if (geometry.coordinates) feature.coordinates = geometry.coordinates;
}
delete feature.geometry;
return feature;
}
function geomifyGeometry(geometry) {
if (!geometry) return { type: null };
if (geomifyGeometryType.hasOwnProperty(geometry.type)) geomifyGeometryType[geometry.type](geometry);
return geometry;
}
var geomifyObjectType = {
Feature: geomifyFeature,
FeatureCollection: function (collection) {
collection.type = "GeometryCollection";
collection.geometries = collection.features;
collection.features.forEach(geomifyFeature);
delete collection.features;
return collection;
}
};
var geomifyGeometryType = {
GeometryCollection: function (o) {
var geometries = o.geometries, i = -1, n = geometries.length;
while (++i < n) geometries[i] = geomifyGeometry(geometries[i]);
},
MultiPoint: function (o) {
if (!o.coordinates.length) {
o.type = null;
delete o.coordinates;
} else if (o.coordinates.length < 2) {
o.type = "Point";
o.coordinates = o.coordinates[0];
}
},
LineString: function (o) {
if (!o.coordinates.length) {
o.type = null;
delete o.coordinates;
}
},
MultiLineString: function (o) {
for (var lines = o.coordinates, i = 0, N = 0, n = lines.length; i < n; ++i) {
var line = lines[i];
if (line.length) lines[N++] = line;
}
if (!N) {
o.type = null;
delete o.coordinates;
} else if (N < 2) {
o.type = "LineString";
o.coordinates = lines[0];
} else {
o.coordinates.length = N;
}
},
Polygon: function (o) {
for (var rings = o.coordinates, i = 0, N = 0, n = rings.length; i < n; ++i) {
var ring = rings[i];
if (ring.length) rings[N++] = ring;
}
if (!N) {
o.type = null;
delete o.coordinates;
} else {
o.coordinates.length = N;
}
},
MultiPolygon: function (o) {
for (var polygons = o.coordinates, j = 0, M = 0, m = polygons.length; j < m; ++j) {
for (var rings = polygons[j], i = 0, N = 0, n = rings.length; i < n; ++i) {
var ring = rings[i];
if (ring.length) rings[N++] = ring;
}
if (N) {
rings.length = N;
polygons[M++] = rings;
}
}
if (!M) {
o.type = null;
delete o.coordinates;
} else if (M < 2) {
o.type = "Polygon";
o.coordinates = polygons[0];
} else {
polygons.length = M;
}
}
};
for (var key in objects) {
objects[key] = geomifyObject(objects[key]);
}
return objects;
};
}, {}],
12: [function (require, module, exports) {
module.exports = function (objects, filter) {
function prefilterGeometry(geometry) {
if (!geometry) return { type: null };
if (prefilterGeometryType.hasOwnProperty(geometry.type)) prefilterGeometryType[geometry.type](geometry);
return geometry;
}
var prefilterGeometryType = {
GeometryCollection: function (o) {
var geometries = o.geometries, i = -1, n = geometries.length;
while (++i < n) geometries[i] = prefilterGeometry(geometries[i]);
},
Polygon: function (o) {
for (var rings = o.coordinates, i = 0, N = 0, n = rings.length; i < n; ++i) {
var ring = rings[i];
if (filter(ring)) rings[N++] = ring;
}
if (!N) {
o.type = null;
delete o.coordinates;
} else {
o.coordinates.length = N;
}
},
MultiPolygon: function (o) {
for (var polygons = o.coordinates, j = 0, M = 0, m = polygons.length; j < m; ++j) {
for (var rings = polygons[j], i = 0, N = 0, n = rings.length; i < n; ++i) {
var ring = rings[i];
if (filter(ring)) rings[N++] = ring;
}
if (N) {
rings.length = N;
polygons[M++] = rings;
}
}
if (!M) {
o.type = null;
delete o.coordinates;
} else if (M < 2) {
o.type = "Polygon";
o.coordinates = polygons[0];
} else {
polygons.length = M;
}
}
};
for (var key in objects) {
objects[key] = prefilterGeometry(objects[key]);
}
return objects;
};
}, {}],
13: [function (require, module, exports) {
module.exports = function (topology, options) {
var verbose = false,
objects = topology.objects,
oldArcs = topology.arcs,
oldArcCount = oldArcs.length,
newArcs = topology.arcs = [],
newArcCount = 0,
newIndexByOldIndex = new Array(oldArcs.length);
if (options)
"verbose" in options && (verbose = !!options["verbose"]);
function pruneGeometry(geometry) {
if (geometry && pruneGeometryType.hasOwnProperty(geometry.type)) pruneGeometryType[geometry.type](geometry);
}
var pruneGeometryType = {
GeometryCollection: function (o) { o.geometries.forEach(pruneGeometry); },
LineString: function (o) { pruneArcs(o.arcs); },
MultiLineString: function (o) { o.arcs.forEach(pruneArcs); },
Polygon: function (o) { o.arcs.forEach(pruneArcs); },
MultiPolygon: function (o) { o.arcs.forEach(pruneMultiArcs); }
};
function pruneArcs(arcs) {
for (var i = 0, m = 0, n = arcs.length; i < n; ++i) {
var oldIndex = arcs[i],
oldReverse = oldIndex < 0 && (oldIndex = ~oldIndex, true),
oldArc = oldArcs[oldIndex],
newIndex;
// Skip collapsed arc segments.
if (oldArc.length < 3 && !oldArc[1][0] && !oldArc[1][1]) continue;
// If this is the first instance of this arc,
// record it under its new index.
if ((newIndex = newIndexByOldIndex[oldIndex]) == null) {
newIndexByOldIndex[oldIndex] = newIndex = newArcCount++;
newArcs[newIndex] = oldArcs[oldIndex];
}
arcs[m++] = oldReverse ? ~newIndex : newIndex;
}
// If all were collapsed, restore the last arc to avoid collapsing the line.
if (!(arcs.length = m) && n) {
// If this is the first instance of this arc,
// record it under its new index.
if ((newIndex = newIndexByOldIndex[oldIndex]) == null) {
newIndexByOldIndex[oldIndex] = newIndex = newArcCount++;
newArcs[newIndex] = oldArcs[oldIndex];
}
arcs[0] = oldReverse ? ~newIndex : newIndex;
}
}
function pruneMultiArcs(arcs) {
arcs.forEach(pruneArcs);
}
for (var key in objects) {
pruneGeometry(objects[key]);
}
if (verbose) console.warn("prune: retained " + newArcCount + " / " + oldArcCount + " arcs (" + Math.round(newArcCount / oldArcCount * 100) + "%)");
return topology;
};
function noop() { }
}, {}],
14: [function (require, module, exports) {
module.exports = function (objects, bbox, Q) {
var x0 = isFinite(bbox[0]) ? bbox[0] : 0,
y0 = isFinite(bbox[1]) ? bbox[1] : 0,
x1 = isFinite(bbox[2]) ? bbox[2] : 0,
y1 = isFinite(bbox[3]) ? bbox[3] : 0,
kx = x1 - x0 ? (Q - 1) / (x1 - x0) : 1,
ky = y1 - y0 ? (Q - 1) / (y1 - y0) : 1;
function quantizeGeometry(geometry) {
if (geometry && quantizeGeometryType.hasOwnProperty(geometry.type)) quantizeGeometryType[geometry.type](geometry);
}
var quantizeGeometryType = {
GeometryCollection: function (o) { o.geometries.forEach(quantizeGeometry); },
Point: function (o) { quantizePoint(o.coordinates); },
MultiPoint: function (o) { o.coordinates.forEach(quantizePoint); },
LineString: function (o) {
var line = o.coordinates;
quantizeLine(line);
if (line.length < 2) line[1] = line[0]; // must have 2+
},
MultiLineString: function (o) {
for (var lines = o.coordinates, i = 0, n = lines.length; i < n; ++i) {
var line = lines[i];
quantizeLine(line);
if (line.length < 2) line[1] = line[0]; // must have 2+
}
},
Polygon: function (o) {
for (var rings = o.coordinates, i = 0, n = rings.length; i < n; ++i) {
var ring = rings[i];
quantizeLine(ring);
while (ring.length < 4) ring.push(ring[0]); // must have 4+
}
},
MultiPolygon: function (o) {
for (var polygons = o.coordinates, i = 0, n = polygons.length; i < n; ++i) {
for (var rings = polygons[i], j = 0, m = rings.length; j < m; ++j) {
var ring = rings[j];
quantizeLine(ring);
while (ring.length < 4) ring.push(ring[0]); // must have 4+
}
}
}
};
function quantizePoint(coordinates) {
coordinates[0] = Math.round((coordinates[0] - x0) * kx);
coordinates[1] = Math.round((coordinates[1] - y0) * ky);
}
function quantizeLine(coordinates) {
var i = 0,
j = 1,
n = coordinates.length,
pi = coordinates[0],
pj,
px = pi[0] = Math.round((pi[0] - x0) * kx),
py = pi[1] = Math.round((pi[1] - y0) * ky),
x,
y;
while (++i < n) {
pi = coordinates[i];
x = Math.round((pi[0] - x0) * kx);
y = Math.round((pi[1] - y0) * ky);
if (x !== px || y !== py) { // skip coincident points
pj = coordinates[j++];
pj[0] = px = x;
pj[1] = py = y;
}
}
coordinates.length = j;
}
for (var key in objects) {
quantizeGeometry(objects[key]);
}
return {
scale: [1 / kx, 1 / ky],
translate: [x0, y0]
};
};
}, {}],
15: [function (require, module, exports) {
var topojson = require("../../"),
systems = require("./coordinate-systems");
module.exports = function (topology, options) {
var minimumArea = 0,
retainProportion,
verbose = false,
system = null,
N = topology.arcs.reduce(function (p, v) { return p + v.length; }, 0),
M = 0;
if (options)
"minimum-area" in options && (minimumArea = +options["minimum-area"]),
"coordinate-system" in options && (system = systems[options["coordinate-system"]]),
"retain-proportion" in options && (retainProportion = +options["retain-proportion"]),
"verbose" in options && (verbose = !!options["verbose"]);
topojson.presimplify(topology, system.triangleArea);
if (retainProportion) {
var areas = [];
topology.arcs.forEach(function (arc) {
arc.forEach(function (point) {
areas.push(point[2]);
});
});
options["minimum-area"] = minimumArea = N ? areas.sort(function (a, b) { return b - a; })[Math.ceil((N - 1) * retainProportion)] : 0;
if (verbose) console.warn("simplification: effective minimum area " + minimumArea.toPrecision(3));
}
topology.arcs.forEach(topology.transform ? function (arc) {
var dx = 0,
dy = 0, // accumulate removed points
i = -1,
j = -1,
n = arc.length,
source,
target;
while (++i < n) {
source = arc[i];
if (source[2] >= minimumArea) {
target = arc[++j];
target[0] = source[0] + dx;
target[1] = source[1] + dy;
dx = dy = 0;
} else {
dx += source[0];
dy += source[1];
}
}
arc.length = ++j;
} : function (arc) {
var i = -1,
j = -1,
n = arc.length,
point;
while (++i < n) {
point = arc[i];
if (point[2] >= minimumArea) {
arc[++j] = point;
}
}
arc.length = ++j;
});
// Remove computed area (z) for each point.
// This is done as a separate pass because some coordinates may be shared
// between arcs (such as the last point and first point of a cut line).
topology.arcs.forEach(function (arc) {
var i = -1, n = arc.length;
while (++i < n) arc[i].length = 2;
M += arc.length;
});
if (verbose) console.warn("simplification: retained " + M + " / " + N + " points (" + Math.round((M / N) * 100) + "%)");
return topology;
};
}, { "../../": 2, "./coordinate-systems": 8}],
16: [function (require, module, exports) {
var π = Math.PI,
π_4 = π / 4,
radians = π / 180;
exports.name = "spherical";
exports.formatDistance = formatDistance;
exports.ringArea = ringArea;
exports.absoluteArea = absoluteArea;
exports.triangleArea = triangleArea;
exports.distance = haversinDistance; // XXX why two implementations?
function formatDistance(radians) {
var km = radians * 6371;
return (km > 1 ? km.toFixed(3) + "km" : (km * 1000).toPrecision(3) + "m")
+ " (" + (radians * 180 / Math.PI).toPrecision(3) + "°)";
}
function ringArea(ring) {
if (!ring.length) return 0;
var area = 0,
p = ring[0],
λ = p[0] * radians,
φ = p[1] * radians / 2 + π_4,
λ0 = λ,
cosφ0 = Math.cos(φ),
sinφ0 = Math.sin(φ);
for (var i = 1, n = ring.length; i < n; ++i) {
p = ring[i], λ = p[0] * radians, φ = p[1] * radians / 2 + π_4;
// Spherical excess E for a spherical triangle with vertices: south pole,
// previous point, current point. Uses a formula derived from Cagnoli’s
// theorem. See Todhunter, Spherical Trig. (1871), Sec. 103, Eq. (2).
var dλ = λ - λ0,
cosφ = Math.cos(φ),
sinφ = Math.sin(φ),
k = sinφ0 * sinφ,
u = cosφ0 * cosφ + k * Math.cos(dλ),
v = k * Math.sin(dλ);
area += Math.atan2(v, u);
// Advance the previous point.
λ0 = λ, cosφ0 = cosφ, sinφ0 = sinφ;
}
return 2 * (area > π ? area - 2 * π : area < -π ? area + 2 * π : area);
}
function absoluteArea(a) {
return a < 0 ? a + 4 * π : a;
}
function triangleArea(t) {
var a = distance(t[0], t[1]),
b = distance(t[1], t[2]),
c = distance(t[2], t[0]),
s = (a + b + c) / 2;
return 4 * Math.atan(Math.sqrt(Math.max(0, Math.tan(s / 2) * Math.tan((s - a) / 2) * Math.tan((s - b) / 2) * Math.tan((s - c) / 2))));
}
function distance(a, b) {
var Δλ = (b[0] - a[0]) * radians,
sinΔλ = Math.sin(Δλ),
cosΔλ = Math.cos(Δλ),
sinφ0 = Math.sin(a[1] * radians),
cosφ0 = Math.cos(a[1] * radians),
sinφ1 = Math.sin(b[1] * radians),
cosφ1 = Math.cos(b[1] * radians),
_;
return Math.atan2(Math.sqrt((_ = cosφ1 * sinΔλ) * _ + (_ = cosφ0 * sinφ1 - sinφ0 * cosφ1 * cosΔλ) * _), sinφ0 * sinφ1 + cosφ0 * cosφ1 * cosΔλ);
}
function haversinDistance(x0, y0, x1, y1) {
x0 *= radians, y0 *= radians, x1 *= radians, y1 *= radians;
return 2 * Math.asin(Math.sqrt(haversin(y1 - y0) + Math.cos(y0) * Math.cos(y1) * haversin(x1 - x0)));
}
function haversin(x) {
return (x = Math.sin(x / 2)) * x;
}
}, {}],
17: [function (require, module, exports) {
var type = require("./type");
module.exports = function (objects, transform) {
var ε = 1e-2,
x0 = -180, x0e = x0 + ε,
x1 = 180, x1e = x1 - ε,
y0 = -90, y0e = y0 + ε,
y1 = 90, y1e = y1 - ε,
fragments = [];
if (transform) {
var kx = transform.scale[0],
ky = transform.scale[1],
dx = transform.translate[0],
dy = transform.translate[1];
x0 = Math.round((x0 - dx) / kx);
x1 = Math.round((x1 - dx) / kx);
y0 = Math.round((y0 - dy) / ky);
y1 = Math.round((y1 - dy) / ky);
x0e = Math.round((x0e - dx) / kx);
x1e = Math.round((x1e - dx) / kx);
y0e = Math.round((y0e - dy) / ky);
y1e = Math.round((y1e - dy) / ky);
}
function normalizePoint(y) {
return y <= y0e ? [0, y0] // south pole
: y >= y1e ? [0, y1] // north pole
: [x0, y]; // antimeridian
}
var stitch = type({
polygon: function (polygon) {
var rings = [];
// For each ring, detect where it crosses the antimeridian or pole.
for (var j = 0, m = polygon.length; j < m; ++j) {
var ring = polygon[j],
fragments = [];
// By default, assume that this ring doesn’t need any stitching.
fragments.push(ring);
for (var i = 0, n = ring.length; i < n; ++i) {
var point = ring[i],
x = point[0],
y = point[1];
// If this is an antimeridian or polar point…
if (x <= x0e || x >= x1e || y <= y0e || y >= y1e) {
// Advance through any antimeridian or polar points…
for (var k = i + 1; k < n; ++k) {
var pointk = ring[k],
xk = pointk[0],
yk = pointk[1];
if (xk > x0e && xk < x1e && yk > y0e && yk < y1e) break;
}
// If this was just a single antimeridian or polar point,
// we don’t need to cut this ring into a fragment;
// we can just leave it as-is.
if (k === i + 1) continue;
// Otherwise, if this is not the first point in the ring,
// cut the current fragment so that it ends at the current point.
// The current point is also normalized for later joining.
if (i) {
var fragmentBefore = ring.slice(0, i + 1);
fragmentBefore[fragmentBefore.length - 1] = normalizePoint(y);
fragments[fragments.length - 1] = fragmentBefore;
}
// If the ring started with an antimeridian fragment,
// we can ignore that fragment entirely.
else {
fragments.pop();
}
// If the remainder of the ring is an antimeridian fragment,
// move on to the next ring.
if (k >= n) break;
// Otherwise, add the remaining ring fragment and continue.
fragments.push(ring = ring.slice(k - 1));
ring[0] = normalizePoint(ring[0][1]);
i = -1;
n = ring.length;
}
}
// Now stitch the fragments back together into rings.
// To connect the fragments start-to-end, create a simple index by end.
var fragmentByStart = {},
fragmentByEnd = {};
// For each fragment…
for (var i = 0, n = fragments.length; i < n; ++i) {
var fragment = fragments[i],
start = fragment[0],
end = fragment[fragment.length - 1];
// If this fragment is closed, add it as a standalone ring.
if (start[0] === end[0] && start[1] === end[1]) {
rings.push(fragment);
fragments[i] = null;
continue;
}
fragment.index = i;
fragmentByStart[start] = fragmentByEnd[end] = fragment;
}
// For each open fragment…
for (var i = 0; i < n; ++i) {
var fragment = fragments[i];
if (fragment) {
var start = fragment[0],
end = fragment[fragment.length - 1],
startFragment = fragmentByEnd[start],
endFragment = fragmentByStart[end];
delete fragmentByStart[start];
delete fragmentByEnd[end];
// If this fragment is closed, add it as a standalone ring.
if (start[0] === end[0] && start[1] === end[1]) {
rings.push(fragment);
continue;
}
if (startFragment) {
delete fragmentByEnd[start];
delete fragmentByStart[startFragment[0]];
startFragment.pop(); // drop the shared coordinate
fragments[startFragment.index] = null;
fragment = startFragment.concat(fragment);
if (startFragment === endFragment) {
// Connect both ends to this single fragment to create a ring.
rings.push(fragment);
} else {
fragment.index = n++;
fragments.push(fragmentByStart[fragment[0]] = fragmentByEnd[fragment[fragment.length - 1]] = fragment);
}
} else if (endFragment) {
delete fragmentByStart[end];
delete fragmentByEnd[endFragment[endFragment.length - 1]];
fragment.pop(); // drop the shared coordinate
fragment = fragment.concat(endFragment);
fragment.index = n++;
fragments[endFragment.index] = null;
fragments.push(fragmentByStart[fragment[0]] = fragmentByEnd[fragment[fragment.length - 1]] = fragment);
} else {
fragment.push(fragment[0]); // close ring
rings.push(fragment);
}
}
}
}
// Copy the rings into the target polygon.
for (var i = 0, n = polygon.length = rings.length; i < n; ++i) {
polygon[i] = rings[i];
}
}
});
for (var key in objects) {
stitch.object(objects[key]);
}
};
}, { "./type": 28}],
18: [function (require, module, exports) {
var type = require("./type"),
stitch = require("./stitch"),
systems = require("./coordinate-systems"),
topologize = require("./topology/index"),
delta = require("./delta"),
geomify = require("./geomify"),
prefilter = require("./prefilter"),
quantize = require("./quantize"),
bounds = require("./bounds"),
computeId = require("./compute-id"),
transformProperties = require("./transform-properties");
var ε = 1e-6;
module.exports = function (objects, options) {
var Q = 1e4, // precision of quantization
id = function (d) { return d.id; }, // function to compute object id
propertyTransform = function () { }, // function to transform properties
transform,
minimumArea = 0,
stitchPoles = true,
verbose = false,
system = null;
if (options)
"verbose" in options && (verbose = !!options["verbose"]),
"stitch-poles" in options && (stitchPoles = !!options["stitch-poles"]),
"coordinate-system" in options && (system = systems[options["coordinate-system"]]),
"minimum-area" in options && (minimumArea = +options["minimum-area"]),
"quantization" in options && (Q = +options["quantization"]),
"id" in options && (id = options["id"]),
"property-transform" in options && (propertyTransform = options["property-transform"]);
// Compute the new feature id and transform properties.
computeId(objects, id);
transformProperties(objects, propertyTransform);
// Convert to geometry objects.
geomify(objects);
// Compute initial bounding box.
var bbox = bounds(objects);
// For automatic coordinate system determination, consider the bounding box.
var oversize = bbox[0] < -180 - ε
|| bbox[1] < -90 - ε
|| bbox[2] > 180 + ε
|| bbox[3] > 90 + ε;
if (!system) {
system = systems[oversize ? "cartesian" : "spherical"];
if (options) options["coordinate-system"] = system.name;
}
if (system === systems.spherical) {
if (oversize) throw new Error("spherical coordinates outside of [±180°, ±90°]");
// When near the spherical coordinate limits, clamp to nice round values.
// This avoids quantized coordinates that are slightly outside the limits.
if (bbox[0] < -180 + ε) bbox[0] = -180;
if (bbox[1] < -90 + ε) bbox[1] = -90;
if (bbox[2] > 180 - ε) bbox[2] = 180;
if (bbox[3] > 90 - ε) bbox[3] = 90;
}
if (verbose) {
console.warn("bounds: " + bbox.join(" ") + " (" + system.name + ")");
}
// Filter rings smaller than the minimum area.
// This can produce a simpler topology.
if (minimumArea) prefilter(objects, function (ring) {
return system.absoluteArea(system.ringArea(ring)) >= minimumArea;
});
// Compute the quantization transform.
if (Q) {
transform = quantize(objects, bbox, Q);
if (verbose) {
console.warn("quantization: " + transform.scale.map(function (degrees) { return system.formatDistance(degrees / 180 * Math.PI); }).join(" "));
}
}
// Remove any antimeridian cuts and restitch.
if (system === systems.spherical && stitchPoles) {
stitch(objects, transform);
}
// Compute the topology.
var topology = topologize(objects);
topology.bbox = bbox;
if (verbose) {
console.warn("topology: " + topology.arcs.length + " arcs, " + topology.arcs.reduce(function (p, v) { return p + v.length; }, 0) + " points");
}
// Convert to delta-encoding.
if (Q) topology.transform = transform, delta(topology);
return topology;
};
}, { "./bounds": 4, "./compute-id": 7, "./coordinate-systems": 8, "./delta": 9, "./geomify": 11, "./prefilter": 12, "./quantize": 14, "./stitch": 17, "./topology/index": 23, "./transform-properties": 27, "./type": 28}],
19: [function (require, module, exports) {
var join = require("./join");
// Given an extracted (pre-)topology, cuts (or rotates) arcs so that all shared
// point sequences are identified. The topology can then be subsequently deduped
// to remove exact duplicate arcs.
module.exports = function (topology) {
var junctionByPoint = join(topology),
coordinates = topology.coordinates,
lines = topology.lines,
rings = topology.rings;
for (var i = 0, n = lines.length; i < n; ++i) {
var line = lines[i],
lineMid = line[0],
lineEnd = line[1];
while (++lineMid < lineEnd) {
if (junctionByPoint.get(coordinates[lineMid])) {
var next = { 0: lineMid, 1: line[1] };
line[1] = lineMid;
line = line.next = next;
}
}
}
for (var i = 0, n = rings.length; i < n; ++i) {
var ring = rings[i],
ringStart = ring[0],
ringMid = ringStart,
ringEnd = ring[1],
ringFixed = junctionByPoint.get(coordinates[ringStart]);
while (++ringMid < ringEnd) {
if (junctionByPoint.get(coordinates[ringMid])) {
if (ringFixed) {
var next = { 0: ringMid, 1: ring[1] };
ring[1] = ringMid;
ring = ring.next = next;
} else { // For the first junction, we can rotate rather than cut.
rotateArray(coordinates, ringStart, ringEnd, ringEnd - ringMid);
coordinates[ringEnd] = coordinates[ringStart];
ringFixed = true;
ringMid = ringStart; // restart; we may have skipped junctions
}
}
}
}
return topology;
};
function rotateArray(array, start, end, offset) {
reverse(array, start, end);
reverse(array, start, start + offset);
reverse(array, start + offset, end);
}
function reverse(array, start, end) {
for (var mid = start + ((end-- - start) >> 1), t; start < mid; ++start, --end) {
t = array[start], array[start] = array[end], array[end] = t;
}
}
}, { "./join": 24}],
20: [function (require, module, exports) {
var join = require("./join"),
hashtable = require("./hashtable"),
hashPoint = require("./point-hash"),
equalPoint = require("./point-equal");
// Given a cut topology, combines duplicate arcs.
module.exports = function (topology) {
var coordinates = topology.coordinates,
lines = topology.lines,
rings = topology.rings,
arcCount = lines.length + rings.length;
delete topology.lines;
delete topology.rings;
// Count the number of (non-unique) arcs to initialize the hashtable safely.
for (var i = 0, n = lines.length; i < n; ++i) {
var line = lines[i]; while (line = line.next) ++arcCount;
}
for (var i = 0, n = rings.length; i < n; ++i) {
var ring = rings[i]; while (ring = ring.next) ++arcCount;
}
var arcsByEnd = hashtable(arcCount * 2, hashPoint, equalPoint),
arcs = topology.arcs = [];
for (var i = 0, n = lines.length; i < n; ++i) {
var line = lines[i];
do {
dedupLine(line);
} while (line = line.next);
}
for (var i = 0, n = rings.length; i < n; ++i) {
var ring = rings[i];
if (ring.next) { // arc is no longer closed
do {
dedupLine(ring);
} while (ring = ring.next);
} else {
dedupRing(ring);
}
}
function dedupLine(arc) {
var startPoint,
endPoint,
startArcs,
endArcs;
// Does this arc match an existing arc in order?
if (startArcs = arcsByEnd.get(startPoint = coordinates[arc[0]])) {
for (var i = 0, n = startArcs.length; i < n; ++i) {
var startArc = startArcs[i];
if (equalLine(startArc, arc)) {
arc[0] = startArc[0];
arc[1] = startArc[1];
return;
}
}
}
// Does this arc match an existing arc in reverse order?
if (endArcs = arcsByEnd.get(endPoint = coordinates[arc[1]])) {
for (var i = 0, n = endArcs.length; i < n; ++i) {
var endArc = endArcs[i];
if (reverseEqualLine(endArc, arc)) {
arc[1] = endArc[0];
arc[0] = endArc[1];
return;
}
}
}
if (startArcs) startArcs.push(arc); else arcsByEnd.set(startPoint, [arc]);
if (endArcs) endArcs.push(arc); else arcsByEnd.set(endPoint, [arc]);
arcs.push(arc);
}
function dedupRing(arc) {
var endPoint,
endArcs;
// Does this arc match an existing line in order, or reverse order?
// Rings are closed, so their start point and end point is the same.
if (endArcs = arcsByEnd.get(endPoint = coordinates[arc[0]])) {
for (var i = 0, n = endArcs.length; i < n; ++i) {
var endArc = endArcs[i];
if (equalRing(endArc, arc)) {
arc[0] = endArc[0];
arc[1] = endArc[1];
return;
}
if (reverseEqualRing(endArc, arc)) {
arc[0] = endArc[1];
arc[1] = endArc[0];
return;
}
}
}
// Otherwise, does this arc match an existing ring in order, or reverse order?
if (endArcs = arcsByEnd.get(endPoint = coordinates[arc[0] + findMinimumOffset(arc)])) {
for (var i = 0, n = endArcs.length; i < n; ++i) {
var endArc = endArcs[i];
if (equalRing(endArc, arc)) {
arc[0] = endArc[0];
arc[1] = endArc[1];
return;
}
if (reverseEqualRing(endArc, arc)) {
arc[0] = endArc[1];
arc[1] = endArc[0];
return;
}
}
}
if (endArcs) endArcs.push(arc); else arcsByEnd.set(endPoint, [arc]);
arcs.push(arc);
}
function equalLine(arcA, arcB) {
var ia = arcA[0], ib = arcB[0],
ja = arcA[1], jb = arcB[1];
if (ia - ja !== ib - jb) return false;
for (; ia <= ja; ++ia, ++ib) if (!equalPoint(coordinates[ia], coordinates[ib])) return false;
return true;
}
function reverseEqualLine(arcA, arcB) {
var ia = arcA[0], ib = arcB[0],
ja = arcA[1], jb = arcB[1];
if (ia - ja !== ib - jb) return false;
for (; ia <= ja; ++ia, --jb) if (!equalPoint(coordinates[ia], coordinates[jb])) return false;
return true;
}
function equalRing(arcA, arcB) {
var ia = arcA[0], ib = arcB[0],
ja = arcA[1], jb = arcB[1],
n = ja - ia;
if (n !== jb - ib) return false;
var ka = findMinimumOffset(arcA),
kb = findMinimumOffset(arcB);
for (var i = 0; i < n; ++i) {
if (!equalPoint(coordinates[ia + (i + ka) % n], coordinates[ib + (i + kb) % n])) return false;
}
return true;
}
function reverseEqualRing(arcA, arcB) {
var ia = arcA[0], ib = arcB[0],
ja = arcA[1], jb = arcB[1],
n = ja - ia;
if (n !== jb - ib) return false;
var ka = findMinimumOffset(arcA),
kb = n - findMinimumOffset(arcB);
for (var i = 0; i < n; ++i) {
if (!equalPoint(coordinates[ia + (i + ka) % n], coordinates[jb - (i + kb) % n])) return false;
}
return true;
}
// Rings are rotated to a consistent, but arbitrary, start point.
// This is necessary to detect when a ring and a rotated copy are dupes.
function findMinimumOffset(arc) {
var start = arc[0],
end = arc[1],
mid = start,
minimum = mid,
minimumPoint = coordinates[mid];
while (++mid < end) {
var point = coordinates[mid];
if (point[0] < minimumPoint[0] || point[0] === minimumPoint[0] && point[1] < minimumPoint[1]) {
minimum = mid;
minimumPoint = point;
}
}
return minimum - start;
}
return topology;
};
}, { "./hashtable": 22, "./join": 24, "./point-equal": 25, "./point-hash": 26}],
21: [function (require, module, exports) {
// Extracts the lines and rings from the specified hash of geometry objects.
//
// Returns an object with three properties:
//
// * coordinates - shared buffer of [x, y] coordinates
// * lines - lines extracted from the hash, of the form [start, end]
// * rings - rings extracted from the hash, of the form [start, end]
//
// For each ring or line, start and end represent inclusive indexes into the
// coordinates buffer. For rings (and closed lines), coordinates[start] equals
// coordinates[end].
//
// For each line or polygon geometry in the input hash, including nested
// geometries as in geometry collections, the `coordinates` array is replaced
// with an equivalent `arcs` array that, for each line (for line string
// geometries) or ring (for polygon geometries), points to one of the above
// lines or rings.
module.exports = function (objects) {
var index = -1,
lines = [],
rings = [],
coordinates = [];
function extractGeometry(geometry) {
if (geometry && extractGeometryType.hasOwnProperty(geometry.type)) extractGeometryType[geometry.type](geometry);
}
var extractGeometryType = {
GeometryCollection: function (o) { o.geometries.forEach(extractGeometry); },
LineString: function (o) { o.arcs = extractLine(o.coordinates); delete o.coordinates; },
MultiLineString: function (o) { o.arcs = o.coordinates.map(extractLine); delete o.coordinates; },
Polygon: function (o) { o.arcs = o.coordinates.map(extractRing); delete o.coordinates; },
MultiPolygon: function (o) { o.arcs = o.coordinates.map(extractMultiRing); delete o.coordinates; }
};
function extractLine(line) {
for (var i = 0, n = line.length; i < n; ++i) coordinates[++index] = line[i];
var arc = { 0: index - n + 1, 1: index };
lines.push(arc);
return arc;
}
function extractRing(ring) {
for (var i = 0, n = ring.length; i < n; ++i) coordinates[++index] = ring[i];
var arc = { 0: index - n + 1, 1: index };
rings.push(arc);
return arc;
}
function extractMultiRing(rings) {
return rings.map(extractRing);
}
for (var key in objects) {
extractGeometry(objects[key]);
}
return {
type: "Topology",
coordinates: coordinates,
lines: lines,
rings: rings,
objects: objects
};
};
}, {}],
22: [function (require, module, exports) {
module.exports = function (size, hash, equal) {
var hashtable = new Array(size = 1 << Math.ceil(Math.log(size) / Math.LN2)),
mask = size - 1,
free = size;
function set(key, value) {
var index = hash(key) & mask,
match = hashtable[index],
cycle = !index;
while (match != null) {
if (equal(match.key, key)) return match.value = value;
match = hashtable[index = (index + 1) & mask];
if (!index && cycle++) throw new Error("full hashtable");
}
hashtable[index] = { key: key, value: value };
--free;
return value;
}
function get(key, missingValue) {
var index = hash(key) & mask,
match = hashtable[index],
cycle = !index;
while (match != null) {
if (equal(match.key, key)) return match.value;
match = hashtable[index = (index + 1) & mask];
if (!index && cycle++) break;
}
return missingValue;
}
function remove(key) {
var index = hash(key) & mask,
match = hashtable[index],
cycle = !index;
while (match != null) {
if (equal(match.key, key)) {
hashtable[index] = null;
match = hashtable[index = (index + 1) & mask];
if (match != null) { // delete and re-add
++free;
hashtable[index] = null;
set(match.key, match.value);
}
++free;
return true;
}
match = hashtable[index = (index + 1) & mask];
if (!index && cycle++) break;
}
return false;
}
function keys() {
var keys = [];
for (var i = 0, n = hashtable.length; i < n; ++i) {
var match = hashtable[i];
if (match != null) keys.push(match.key);
}
return keys;
}
return {
set: set,
get: get,
remove: remove,
keys: keys
};
};
}, {}],
23: [function (require, module, exports) {
var hashtable = require("./hashtable"),
extract = require("./extract"),
cut = require("./cut"),
dedup = require("./dedup");
// Constructs the TopoJSON Topology for the specified hash of geometries.
// Each object in the specified hash must be a GeoJSON object,
// meaning FeatureCollection, a Feature or a geometry object.
module.exports = function (objects) {
var topology = dedup(cut(extract(objects))),
coordinates = topology.coordinates,
indexByArc = hashtable(topology.arcs.length, hashArc, equalArc);
objects = topology.objects; // for garbage collection
topology.arcs = topology.arcs.map(function (arc, i) {
indexByArc.set(arc, i);
return coordinates.slice(arc[0], arc[1] + 1);
});
delete topology.coordinates;
coordinates = null;
function indexGeometry(geometry) {
if (geometry && indexGeometryType.hasOwnProperty(geometry.type)) indexGeometryType[geometry.type](geometry);
}
var indexGeometryType = {
GeometryCollection: function (o) { o.geometries.forEach(indexGeometry); },
LineString: function (o) { o.arcs = indexArcs(o.arcs); },
MultiLineString: function (o) { o.arcs = o.arcs.map(indexArcs); },
Polygon: function (o) { o.arcs = o.arcs.map(indexArcs); },
MultiPolygon: function (o) { o.arcs = o.arcs.map(indexMultiArcs); }
};
function indexArcs(arc) {
var indexes = [];
do {
var index = indexByArc.get(arc);
indexes.push(arc[0] < arc[1] ? index : ~index);
} while (arc = arc.next);
return indexes;
}
function indexMultiArcs(arcs) {
return arcs.map(indexArcs);
}
for (var key in objects) {
indexGeometry(objects[key]);
}
return topology;
};
function hashArc(arc) {
var i = arc[0], j = arc[1], t;
if (j < i) t = i, i = j, j = t;
return i + 31 * j;
}
function equalArc(arcA, arcB) {
var ia = arcA[0], ja = arcA[1],
ib = arcB[0], jb = arcB[1], t;
if (ja < ia) t = ia, ia = ja, ja = t;
if (jb < ib) t = ib, ib = jb, jb = t;
return ia === ib && ja === jb;
}
}, { "./cut": 19, "./dedup": 20, "./extract": 21, "./hashtable": 22}],
24: [function (require, module, exports) {
var hashtable = require("./hashtable"),
hashPoint = require("./point-hash"),
equalPoint = require("./point-equal");
// Given an extracted (pre-)topology, identifies all of the junctions. These are
// the points at which arcs (lines or rings) will need to be cut so that each
// arc is represented uniquely.
//
// A junction is a point where at least one arc deviates from another arc going
// through the same point. For example, consider the point B. If there is a arc
// through ABC and another arc through CBA, then B is not a junction because in
// both cases the adjacent point pairs are {A,C}. However, if there is an
// additional arc ABD, then {A,D} != {A,C}, and thus B becomes a junction.
//
// For a closed ring ABCA, the first point A’s adjacent points are the second
// and last point {B,C}. For a line, the first and last point are always
// considered junctions, even if the line is closed; this ensures that a closed
// line is never rotated.
module.exports = function (topology) {
var coordinates = topology.coordinates,
lines = topology.lines,
rings = topology.rings,
visitedByPoint,
neighborsByPoint = hashtable(coordinates.length, hashPoint, equalPoint),
junctionByPoint = hashtable(coordinates.length, hashPoint, equalPoint);
for (var i = 0, n = lines.length; i < n; ++i) {
var line = lines[i],
lineStart = line[0],
lineEnd = line[1],
previousPoint = null,
currentPoint = coordinates[lineStart],
nextPoint = coordinates[++lineStart];
visitedByPoint = hashtable(lineEnd - lineStart, hashPoint, equalPoint);
junctionByPoint.set(currentPoint, true); // start
while (++lineStart <= lineEnd) {
sequence(previousPoint = currentPoint, currentPoint = nextPoint, nextPoint = coordinates[lineStart]);
}
junctionByPoint.set(nextPoint, true); // end
}
for (var i = 0, n = rings.length; i < n; ++i) {
var ring = rings[i],
ringStart = ring[0] + 1,
ringEnd = ring[1],
previousPoint = coordinates[ringEnd - 1],
currentPoint = coordinates[ringStart - 1],
nextPoint = coordinates[ringStart];
visitedByPoint = hashtable(ringEnd - ringStart + 1, hashPoint, equalPoint);
sequence(previousPoint, currentPoint, nextPoint);
while (++ringStart <= ringEnd) {
sequence(previousPoint = currentPoint, currentPoint = nextPoint, nextPoint = coordinates[ringStart]);
}
}
function sequence(previousPoint, currentPoint, nextPoint) {
if (visitedByPoint.get(currentPoint)) return; // ignore self-intersection
visitedByPoint.set(currentPoint, true);
var neighbors = neighborsByPoint.get(currentPoint);
if (neighbors) {
if (!(equalPoint(neighbors[0], previousPoint)
&& equalPoint(neighbors[1], nextPoint))
&& !(equalPoint(neighbors[0], nextPoint)
&& equalPoint(neighbors[1], previousPoint))) {
junctionByPoint.set(currentPoint, true);
}
} else {
neighborsByPoint.set(currentPoint, [previousPoint, nextPoint]);
}
}
return junctionByPoint;
};
}, { "./hashtable": 22, "./point-equal": 25, "./point-hash": 26}],
25: [function (require, module, exports) {
module.exports = function (pointA, pointB) {
return pointA[0] === pointB[0] && pointA[1] === pointB[1];
};
}, {}],
26: [function (require, module, exports) {
// TODO if quantized, use simpler Int32 hashing?
var hashBuffer = new ArrayBuffer(8),
hashFloats = new Float64Array(hashBuffer),
hashInts = new Int32Array(hashBuffer);
function hashFloat(x) {
hashFloats[0] = x;
x = hashInts[1] ^ hashInts[0];
x ^= (x >>> 20) ^ (x >>> 12);
x ^= (x >>> 7) ^ (x >>> 4);
return x;
}
module.exports = function (point) {
var h = (hashFloat(point[0]) + 31 * hashFloat(point[1])) | 0;
return h < 0 ? ~h : h;
};
}, {}], 27: [function (require, module, exports) {
// Given a hash of GeoJSON objects, transforms any properties on features using
// the specified transform function. The function is invoked for each existing
// property on the current feature, being passed the new properties hash, the
// property name, and the property value. The function is then expected to
// assign a new value to the given property hash if the feature is to be
// retained and return true. Or, to skip the property, do nothing and return
// false. If no properties are propagated to the new properties hash, the
// properties hash will be deleted from the current feature.
module.exports = function (objects, propertyTransform) {
if (arguments.length < 2) propertyTransform = function () { };
function transformObject(object) {
if (object && transformObjectType.hasOwnProperty(object.type)) transformObjectType[object.type](object);
}
function transformFeature(feature) {
if (feature.properties) {
var properties0 = feature.properties,
properties1 = {},
empty = true;
for (var key0 in properties0) {
if (propertyTransform(properties1, key0, properties0[key0])) {
empty = false;
}
}
if (empty) delete feature.properties;
else feature.properties = properties1;
}
}
var transformObjectType = {
Feature: transformFeature,
FeatureCollection: function (collection) { collection.features.forEach(transformFeature); }
};
for (var key in objects) {
transformObject(objects[key]);
}
return objects;
};
}, {}], 28: [function (require, module, exports) {
module.exports = function (types) {
for (var type in typeDefaults) {
if (!(type in types)) {
types[type] = typeDefaults[type];
}
}
types.defaults = typeDefaults;
return types;
};
var typeDefaults = {
Feature: function (feature) {
if (feature.geometry) this.geometry(feature.geometry);
},
FeatureCollection: function (collection) {
var features = collection.features, i = -1, n = features.length;
while (++i < n) this.Feature(features[i]);
},
GeometryCollection: function (collection) {
var geometries = collection.geometries, i = -1, n = geometries.length;
while (++i < n) this.geometry(geometries[i]);
},
LineString: function (lineString) {
this.line(lineString.coordinates);
},
MultiLineString: function (multiLineString) {
var coordinates = multiLineString.coordinates, i = -1, n = coordinates.length;
while (++i < n) this.line(coordinates[i]);
},
MultiPoint: function (multiPoint) {
var coordinates = multiPoint.coordinates, i = -1, n = coordinates.length;
while (++i < n) this.point(coordinates[i]);
},
MultiPolygon: function (multiPolygon) {
var coordinates = multiPolygon.coordinates, i = -1, n = coordinates.length;
while (++i < n) this.polygon(coordinates[i]);
},
Point: function (point) {
this.point(point.coordinates);
},
Polygon: function (polygon) {
this.polygon(polygon.coordinates);
},
object: function (object) {
return object == null ? null
: typeObjects.hasOwnProperty(object.type) ? this[object.type](object)
: this.geometry(object);
},
geometry: function (geometry) {
return geometry == null ? null
: typeGeometries.hasOwnProperty(geometry.type) ? this[geometry.type](geometry)
: null;
},
point: function () { },
line: function (coordinates) {
var i = -1, n = coordinates.length;
while (++i < n) this.point(coordinates[i]);
},
polygon: function (coordinates) {
var i = -1, n = coordinates.length;
while (++i < n) this.line(coordinates[i]);
}
};
var typeGeometries = {
LineString: 1,
MultiLineString: 1,
MultiPoint: 1,
MultiPolygon: 1,
Point: 1,
Polygon: 1,
GeometryCollection: 1
};
var typeObjects = {
Feature: 1,
FeatureCollection: 1
};
}, {}], 29: [function (require, module, exports) {
!function () {
var topojson = {
version: "1.4.6",
mesh: mesh,
feature: featureOrCollection,
neighbors: neighbors,
presimplify: presimplify
};
function merge(topology, arcs) {
var fragmentByStart = {},
fragmentByEnd = {};
arcs.forEach(function (i) {
var e = ends(i),
start = e[0],
end = e[1],
f, g;
if (f = fragmentByEnd[start]) {
delete fragmentByEnd[f.end];
f.push(i);
f.end = end;
if (g = fragmentByStart[end]) {
delete fragmentByStart[g.start];
var fg = g === f ? f : f.concat(g);
fragmentByStart[fg.start = f.start] = fragmentByEnd[fg.end = g.end] = fg;
} else if (g = fragmentByEnd[end]) {
delete fragmentByStart[g.start];
delete fragmentByEnd[g.end];
var fg = f.concat(g.map(function (i) { return ~i; }).reverse());
fragmentByStart[fg.start = f.start] = fragmentByEnd[fg.end = g.start] = fg;
} else {
fragmentByStart[f.start] = fragmentByEnd[f.end] = f;
}
} else if (f = fragmentByStart[end]) {
delete fragmentByStart[f.start];
f.unshift(i);
f.start = start;
if (g = fragmentByEnd[start]) {
delete fragmentByEnd[g.end];
var gf = g === f ? f : g.concat(f);
fragmentByStart[gf.start = g.start] = fragmentByEnd[gf.end = f.end] = gf;
} else if (g = fragmentByStart[start]) {
delete fragmentByStart[g.start];
delete fragmentByEnd[g.end];
var gf = g.map(function (i) { return ~i; }).reverse().concat(f);
fragmentByStart[gf.start = g.end] = fragmentByEnd[gf.end = f.end] = gf;
} else {
fragmentByStart[f.start] = fragmentByEnd[f.end] = f;
}
} else if (f = fragmentByStart[start]) {
delete fragmentByStart[f.start];
f.unshift(~i);
f.start = end;
if (g = fragmentByEnd[end]) {
delete fragmentByEnd[g.end];
var gf = g === f ? f : g.concat(f);
fragmentByStart[gf.start = g.start] = fragmentByEnd[gf.end = f.end] = gf;
} else if (g = fragmentByStart[end]) {
delete fragmentByStart[g.start];
delete fragmentByEnd[g.end];
var gf = g.map(function (i) { return ~i; }).reverse().concat(f);
fragmentByStart[gf.start = g.end] = fragmentByEnd[gf.end = f.end] = gf;
} else {
fragmentByStart[f.start] = fragmentByEnd[f.end] = f;
}
} else if (f = fragmentByEnd[end]) {
delete fragmentByEnd[f.end];
f.push(~i);
f.end = start;
if (g = fragmentByEnd[start]) {
delete fragmentByStart[g.start];
var fg = g === f ? f : f.concat(g);
fragmentByStart[fg.start = f.start] = fragmentByEnd[fg.end = g.end] = fg;
} else if (g = fragmentByStart[start]) {
delete fragmentByStart[g.start];
delete fragmentByEnd[g.end];
var fg = f.concat(g.map(function (i) { return ~i; }).reverse());
fragmentByStart[fg.start = f.start] = fragmentByEnd[fg.end = g.start] = fg;
} else {
fragmentByStart[f.start] = fragmentByEnd[f.end] = f;
}
} else {
f = [i];
fragmentByStart[f.start = start] = fragmentByEnd[f.end = end] = f;
}
});
function ends(i) {
var arc = topology.arcs[i], p0 = arc[0], p1 = [0, 0];
arc.forEach(function (dp) { p1[0] += dp[0], p1[1] += dp[1]; });
return [p0, p1];
}
var fragments = [];
for (var k in fragmentByEnd) fragments.push(fragmentByEnd[k]);
return fragments;
}
function mesh(topology, o, filter) {
var arcs = [];
if (arguments.length > 1) {
var geomsByArc = [],
geom;
function arc(i) {
if (i < 0) i = ~i;
(geomsByArc[i] || (geomsByArc[i] = [])).push(geom);
}
function line(arcs) {
arcs.forEach(arc);
}
function polygon(arcs) {
arcs.forEach(line);
}
function geometry(o) {
if (o.type === "GeometryCollection") o.geometries.forEach(geometry);
else if (o.type in geometryType) {
geom = o;
geometryType[o.type](o.arcs);
}
}
var geometryType = {
LineString: line,
MultiLineString: polygon,
Polygon: polygon,
MultiPolygon: function (arcs) { arcs.forEach(polygon); }
};
geometry(o);
geomsByArc.forEach(arguments.length < 3
? function (geoms, i) { arcs.push(i); }
: function (geoms, i) { if (filter(geoms[0], geoms[geoms.length - 1])) arcs.push(i); });
} else {
for (var i = 0, n = topology.arcs.length; i < n; ++i) arcs.push(i);
}
return object(topology, { type: "MultiLineString", arcs: merge(topology, arcs) });
}
function featureOrCollection(topology, o) {
return o.type === "GeometryCollection" ? {
type: "FeatureCollection",
features: o.geometries.map(function (o) { return feature(topology, o); })
} : feature(topology, o);
}
function feature(topology, o) {
var f = {
type: "Feature",
id: o.id,
properties: o.properties || {},
geometry: object(topology, o)
};
if (o.id == null) delete f.id;
return f;
}
function object(topology, o) {
var absolute = transformAbsolute(topology.transform),
arcs = topology.arcs;
function arc(i, points) {
if (points.length) points.pop();
for (var a = arcs[i < 0 ? ~i : i], k = 0, n = a.length, p; k < n; ++k) {
points.push(p = a[k].slice());
absolute(p, k);
}
if (i < 0) reverse(points, n);
}
function point(p) {
p = p.slice();
absolute(p, 0);
return p;
}
function line(arcs) {
var points = [];
for (var i = 0, n = arcs.length; i < n; ++i) arc(arcs[i], points);
if (points.length < 2) points.push(points[0].slice());
return points;
}
function ring(arcs) {
var points = line(arcs);
while (points.length < 4) points.push(points[0].slice());
return points;
}
function polygon(arcs) {
return arcs.map(ring);
}
function geometry(o) {
var t = o.type;
return t === "GeometryCollection" ? { type: t, geometries: o.geometries.map(geometry) }
: t in geometryType ? { type: t, coordinates: geometryType[t](o) }
: null;
}
var geometryType = {
Point: function (o) { return point(o.coordinates); },
MultiPoint: function (o) { return o.coordinates.map(point); },
LineString: function (o) { return line(o.arcs); },
MultiLineString: function (o) { return o.arcs.map(line); },
Polygon: function (o) { return polygon(o.arcs); },
MultiPolygon: function (o) { return o.arcs.map(polygon); }
};
return geometry(o);
}
function reverse(array, n) {
var t, j = array.length, i = j - n; while (i < --j) t = array[i], array[i++] = array[j], array[j] = t;
}
function bisect(a, x) {
var lo = 0, hi = a.length;
while (lo < hi) {
var mid = lo + hi >>> 1;
if (a[mid] < x) lo = mid + 1;
else hi = mid;
}
return lo;
}
function neighbors(objects) {
var indexesByArc = {}, // arc index -> array of object indexes
neighbors = objects.map(function () { return []; });
function line(arcs, i) {
arcs.forEach(function (a) {
if (a < 0) a = ~a;
var o = indexesByArc[a];
if (o) o.push(i);
else indexesByArc[a] = [i];
});
}
function polygon(arcs, i) {
arcs.forEach(function (arc) { line(arc, i); });
}
function geometry(o, i) {
if (o.type === "GeometryCollection") o.geometries.forEach(function (o) { geometry(o, i); });
else if (o.type in geometryType) geometryType[o.type](o.arcs, i);
}
var geometryType = {
LineString: line,
MultiLineString: polygon,
Polygon: polygon,
MultiPolygon: function (arcs, i) { arcs.forEach(function (arc) { polygon(arc, i); }); }
};
objects.forEach(geometry);
for (var i in indexesByArc) {
for (var indexes = indexesByArc[i], m = indexes.length, j = 0; j < m; ++j) {
for (var k = j + 1; k < m; ++k) {
var ij = indexes[j], ik = indexes[k], n;
if ((n = neighbors[ij])[i = bisect(n, ik)] !== ik) n.splice(i, 0, ik);
if ((n = neighbors[ik])[i = bisect(n, ij)] !== ij) n.splice(i, 0, ij);
}
}
}
return neighbors;
}
function presimplify(topology, triangleArea) {
var absolute = transformAbsolute(topology.transform),
relative = transformRelative(topology.transform),
heap = minHeap(compareArea),
maxArea = 0,
triangle;
if (!triangleArea) triangleArea = cartesianArea;
topology.arcs.forEach(function (arc) {
var triangles = [];
arc.forEach(absolute);
for (var i = 1, n = arc.length - 1; i < n; ++i) {
triangle = arc.slice(i - 1, i + 2);
triangle[1][2] = triangleArea(triangle);
triangles.push(triangle);
heap.push(triangle);
}
// Always keep the arc endpoints!
arc[0][2] = arc[n][2] = Infinity;
for (var i = 0, n = triangles.length; i < n; ++i) {
triangle = triangles[i];
triangle.previous = triangles[i - 1];
triangle.next = triangles[i + 1];
}
});
while (triangle = heap.pop()) {
var previous = triangle.previous,
next = triangle.next;
// If the area of the current point is less than that of the previous point
// to be eliminated, use the latter's area instead. This ensures that the
// current point cannot be eliminated without eliminating previously-
// eliminated points.
if (triangle[1][2] < maxArea) triangle[1][2] = maxArea;
else maxArea = triangle[1][2];
if (previous) {
previous.next = next;
previous[2] = triangle[2];
update(previous);
}
if (next) {
next.previous = previous;
next[0] = triangle[0];
update(next);
}
}
topology.arcs.forEach(function (arc) {
arc.forEach(relative);
});
function update(triangle) {
heap.remove(triangle);
triangle[1][2] = triangleArea(triangle);
heap.push(triangle);
}
return topology;
};
function cartesianArea(triangle) {
return Math.abs(
(triangle[0][0] - triangle[2][0]) * (triangle[1][1] - triangle[0][1])
- (triangle[0][0] - triangle[1][0]) * (triangle[2][1] - triangle[0][1])
);
}
function compareArea(a, b) {
return a[1][2] - b[1][2];
}
function minHeap(compare) {
var heap = {},
array = [];
heap.push = function () {
for (var i = 0, n = arguments.length; i < n; ++i) {
var object = arguments[i];
up(object.index = array.push(object) - 1);
}
return array.length;
};
heap.pop = function () {
var removed = array[0],
object = array.pop();
if (array.length) {
array[object.index = 0] = object;
down(0);
}
return removed;
};
heap.remove = function (removed) {
var i = removed.index,
object = array.pop();
if (i !== array.length) {
array[object.index = i] = object;
(compare(object, removed) < 0 ? up : down)(i);
}
return i;
};
function up(i) {
var object = array[i];
while (i > 0) {
var up = ((i + 1) >> 1) - 1,
parent = array[up];
if (compare(object, parent) >= 0) break;
array[parent.index = i] = parent;
array[object.index = i = up] = object;
}
}
function down(i) {
var object = array[i];
while (true) {
var right = (i + 1) << 1,
left = right - 1,
down = i,
child = array[down];
if (left < array.length && compare(array[left], child) < 0) child = array[down = left];
if (right < array.length && compare(array[right], child) < 0) child = array[down = right];
if (down === i) break;
array[child.index = i] = child;
array[object.index = i = down] = object;
}
}
return heap;
}
function transformAbsolute(transform) {
if (!transform) return noop;
var x0,
y0,
kx = transform.scale[0],
ky = transform.scale[1],
dx = transform.translate[0],
dy = transform.translate[1];
return function (point, i) {
if (!i) x0 = y0 = 0;
point[0] = (x0 += point[0]) * kx + dx;
point[1] = (y0 += point[1]) * ky + dy;
};
}
function transformRelative(transform) {
if (!transform) return noop;
var x0,
y0,
kx = transform.scale[0],
ky = transform.scale[1],
dx = transform.translate[0],
dy = transform.translate[1];
return function (point, i) {
if (!i) x0 = y0 = 0;
var x1 = (point[0] - dx) / kx | 0,
y1 = (point[1] - dy) / ky | 0;
point[0] = x1 - x0;
point[1] = y1 - y0;
x0 = x1;
y0 = y1;
};
}
function noop() { }
if (typeof define === "function" && define.amd)
define('ThirdParty/geojson-topojson/lib',topojson);
if (typeof module === "object" && module.exports) {
module.exports = topojson;
this.topojson = topojson;
}
else
this.topojson = topojson;
} ();
}, {}]
}, {}, [2, 1]);
/**
*
*@param {File|Blob}fileOrBlob
*@return {Promise.<ArrayBuffer>}
*/
File.readAsArrayBuffer = function (file) {
var promise = Cesium.when.defer();
var fr = new FileReader();
fr.onload = function (e) {
promise.resolve(e.target.result);
}
fr.onprogress = function (e) {
promise.progress(e.target.result);
}
fr.onerror = function (e) {
promise.reject(e.error);
}
fr.readAsArrayBuffer(file);
return promise;
}
/**
*
*@param {File|Blob}fileOrBlob
*@return {Promise.<String>}
*/
File.readAsText = function (file) {
var promise = Cesium.when.defer();
var fr = new FileReader();
fr.onload = function (e) {
promise.resolve(e.target.result);
}
fr.onprogress = function (e) {
promise.progress(e.target.result);
}
fr.onerror = function (e) {
promise.reject(e.error);
}
fr.readAsText(file);
return promise;
}
/**
*
*@param {File|Blob}fileOrBlob
*@return {Promise.<String>}
*/
File.readAllText = File.readAsText;
/**
*
*@param {File|Blob}fileOrBlob
*@return {Promise.<String>}
*/
File.ReadAllText = File.readAsText;
/**
*
*@param {File|Blob}fileOrBlob
*@return {Promise.<Uint8Array>}
*/
File.readAllBytes = function (file) {
var promise = Cesium.when.defer();
var fr = new FileReader();
fr.onload = function (e) {
promise.resolve(new Uint8Array(e.target.result));
}
fr.onprogress = function (e) {
promise.progress(e.target.result);
}
fr.onerror = function (e) {
promise.reject(e.error);
}
fr.readAsArrayBuffer(file);
return promise;
}
/**
*
*@param {File|Blob}fileOrBlob
*@return {Promise.<Uint8Array>}
*/
File.ReadAllBytes = File.readAllBytes;
/**
*
*@param {File|Blob}fileOrBlob
*@return {Promise.<String>}
*/
File.readAsBinaryString = function (file) {
var promise = Cesium.when.defer();
var fr = new FileReader();
fr.onload = function (e) {
promise.resolve(e.target.result);
}
fr.onprogress = function (e) {
promise.progress(e.target.result);
}
fr.onerror = function (e) {
promise.reject(e.error);
}
fr.readAsBinaryString(file);
return promise;
}
/**
*
*@param {File|Blob}fileOrBlob
*@return {Promise.<String>}
*/
File.readAsDataURL = function (file) {
var promise = Cesium.when.defer();
var fr = new FileReader();
fr.onload = function (e) {
promise.resolve(e.target.result);
}
fr.onprogress = function (e) {
promise.progress(e.target.result);
}
fr.onerror = function (e) {
promise.reject(e.error);
}
fr.readAsDataURL(file);
return promise;
};
define("File", function(){});
define('Util/shp',[
"ThirdParty/shapefile-js-3.3.2/shp",
"ThirdParty/geojson-topojson/lib",
'File'
], function (
shp,
topojson,
FileExtend
) {
/**
* 提供shapefile格式矢量文件解析相关工具
*@class shp
*@memberof MeteoLib.Util
*/
/**
*
*@param {Array.<File>}files
*@return {Object}
* @method
* @name groupFiles
* @static
* @memberof MeteoLib.Util.shp
*/
shp.groupFiles = function (files) {
var shpFile, dbfFile, prjFile;
var group = {};
for (var i = 0; i < files.length; i++) {
var name = Path.ChangeExtension(files[i].name, "");
if (!group[name]) {
group[name] = [];
}
group[name].push(files[i]);
}
return group;
}
/**
*
* @param {Array<File>}files
* @param {Boolean}[toTopojson=false]
* @method
* @name parseShpFiles
* @static
* @memberof MeteoLib.Util.shp
*/
shp.parseShpFiles = function (files, toTopojson) {
if (!files || files.length > 0) {
var promise = Cesium.when.defer();
var shpFile, dbfFile, prjFile;
for (var i = 0; i < files.length; i++) {
if (files[i].name.toLocaleLowerCase().indexOf(".shp") > 0) {
shpFile = files[i];
}
if (files[i].name.toLocaleLowerCase().indexOf(".prj") > 0) {
prjFile = files[i];
}
if (files[i].name.toLocaleLowerCase().indexOf(".dbf") > 0) {
dbfFile = files[i];
}
}
if (!shpFile || !prjFile || !dbfFile) {
throw new Error("打开文件失败,请通过ctrl+同时选择shp、prj、dbf三个文件");
return;
}
var readPromises = [
File.readAsArrayBuffer(shpFile),
File.readAsText(prjFile),
File.readAsArrayBuffer(dbfFile)
];
Cesium.when.all(readPromises, function (buffers) {
var shpBuffer = buffers[0];
var prjBuffer = buffers[1];
var dbfBuffer = buffers[2];
var parsed = shp.combine([shp.parseShp(shpBuffer, prjBuffer), shp.parseDbf(dbfBuffer)]);
parsed.fileName = shpFile.name.toLocaleLowerCase();
if (toTopojson) {
parsed = topojson.topology({
collection: parsed
}, {
"property-transform": function (obj, name, value) {
obj[name] = value;
return obj;
}
});
parsed.fileName = shpFile.name.toLocaleLowerCase();
}
promise.resolve(parsed);
}, function (err) {
promise.reject(err);
});
return promise;
} else {
throw new Error("文件列表不能为空");
}
}
return shp;
});
//define(function () {
/**
*@class
*@memberof Cesium
*/
function Path() { }
/**
*
*获取文件扩展名（后缀）
*@param {String}fname 文件名
*/
Path.GetExtension = function (fname) {
var start = fname.lastIndexOf(".");
if (start >= 0) {
return fname.substring(start, fname.length);
}
return "";
}
/**
*
*获取文件扩展名（后缀）
*@param {String}fname 文件名
*/
Path.GetFileName = function (fname) {
var start = fname.lastIndexOf("/");
if (start < 0) {
return fname;
}
return fname.substring(start + 1, fname.length);
}
/**
*
*获取文件夹
*@param {String}fname 文件名
*/
Path.GetDirectoryName = function (fname) {
var start = fname.lastIndexOf("/");
if (start < 0) {
return "";
}
return fname.substring(0, start);
}
/**
*
*获取文件夹
*@param {String}fname 文件名
*/
Path.Combine = function (dir, fname) {
return dir + fname;
}
Path.ChangeExtension = function (fname, newExt) {
return fname.replace(Path.GetExtension(fname), newExt);
}
// return Path;
//});
if (typeof module === "undefined") {
this.Path = Path;
} else {
module.exports = Path;
}
if (typeof define === "function") {
define('Util/Path',[],function () { return Path; });
};
define('VectorRenderer/VectorStyle',[],function () {
/**
*
*@param {Object} options
*@param {Cesium.Color|String}[options.outlineColor=Cesium.Color.YELLOW] 线或边颜色，仅线、面数据有效。
*@param {Cesium.Color|String}[options.fillColor=Cesium.Color.fromBytes(0, 255, 255, 30)] 填充颜色，仅面数据有效。
*@param {Number}[options.lineWidth=1.5] 线宽，仅线数据有效。
*@param {Boolean}[options.outline=true] 是否显示边，仅面数据有效。
*@param {Boolean}[options.fill=true] 是否填充，仅面数据有效。
*@param {Cesium.Color|String}[options.fontColor=Cesium.Color.BLACK] 注记文本颜色
*@param {Number}[options.fontSize=16] 注记文本字体大小，仅在数据有点时有效。
*@param {String}[options.fontFamily="宋体"] 注记文本字体名称，仅在数据有点时有效。
*@param {Number}[options.pointSize=4] 注记点大小，仅在数据有点时有效。
*@param {Cesium.Color|String}[options.pointColor=Cesium.Color.YELLOW] 注记点颜色，仅在数据有点时有效。
*@param {String}[options.labelPropertyName='NAME'] 注记文本属性名称，仅在数据有点时有效。
*@param {String}[options.makerImage=undefined] 注记点图标，如果设置点图标，则其他点样式参数无效，仅在数据有点时有效。
*@param {Number}[options.ringRadius=2] 注记点样式为Ring时，圆心点大小（半径），仅在数据有点时有效。
*@param {String}[options.pointStyle='Ring'] 注记点样式，仅在数据有点时有效。'Solid'为实心圆,'Ring'为带圆心的圆形,'Circle'为空心圆
*@param {Number}[options.circleLineWidth=2] 注记点样式为Circle时，圆形线宽
*@param {Boolean}[options.showMaker=true] 是否显示注记点，仅在数据有点时有效。
*@param {Boolean}[options.showLabel=true] 是否显示文本，仅在数据有点时有效。
*@param {Boolean}[options.showCentroidLabel=true] 是否显示文本，仅对线和面数据有效。
*@param {String}[options.centroidLabelPropertyName] 几何中心注记文本属性名称，仅对线和面数据有效。
*@param {Number}[options.labelOffsetX=10] 标注文本x方向偏移量，仅在数据有点时有效。以屏幕为参考，左上角为0，向右为正，单位为像素
*@param {Number}[options.labelOffsetY=5] 标注文本y方向偏移量，仅在数据有点时有效。以屏幕为参考，左上角为0，向下为正，单位为像素
*@param {Array.<Number>}[options.lineDash=undefined] 虚线样式，不设置则为实线
*@param {String}[options.lineCap="butt"] 设置线条末端线帽的样式。 butt——默认。向线条的每个末端添加平直的边缘；round——向线条的每个末端添加圆形线帽；square——向线条的每个末端添加正方形线帽。
*@param {String}[options.shadowColor=undefined] 设置用于阴影的颜色
*@param {Number}[options.shadowBlur=undefined] 设置用于阴影的模糊级别
*@param {Number}[options.shadowOffsetX=undefined] 设置阴影距形状的水平距离
*@param {Number}[options.shadowOffsetY=undefined] 设置阴影距形状的垂直距离
*@param {String}[options.lineJoin="miter"] 设置当两条线交汇时所创建边角的类型。bevel——斜角；round——创建圆角；miter——默认。创建尖角。
*@param {Number}[options.miterLimit=10] 设置最大斜接长度。
*@memberof Cesium
*@constructor
*/
function VectorStyle(options) {
//*@param {Number}[options.lineOffset=undefined] 双线样式参数，两线间距，单位为米(m)。不设置则为单线
if (typeof document == 'undefined') {
return options;
}
options = Cesium.defaultValue(options, Cesium.defaultValue.EMPTY_OBJECT);
//面样式
this.fillColor = Cesium.defaultValue(options.fillColor, Cesium.Color.fromBytes(0, 255, 255, 30));
if (typeof this.fillColor == 'string') {
this.fillColor = Cesium.Color.fromCssColorString(this.fillColor);
}
this.fill = Cesium.defaultValue(options.fill, true);
//线样式
this.outlineColor = Cesium.defaultValue(options.outlineColor, Cesium.Color.YELLOW);
if (typeof this.outlineColor == 'string') {
this.outlineColor = Cesium.Color.fromCssColorString(this.outlineColor);
}
this.lineWidth = Cesium.defaultValue(options.lineWidth, 1.5);
this.outline = Cesium.defaultValue(options.outline, true);
//注记样式
this.fontColor = Cesium.defaultValue(options.fontColor, Cesium.Color.BLACK);
if (typeof this.fontColor == 'string') {
this.fontColor = Cesium.Color.fromCssColorString(this.fontColor);
}
this.fontSize = Cesium.defaultValue(options.fontSize, 16);
this.fontFamily = Cesium.defaultValue(options.fontFamily, "宋体");
this.pointSize = Cesium.defaultValue(options.pointSize, 4);
this.pointColor = Cesium.defaultValue(options.pointColor, Cesium.Color.YELLOW);
if (typeof this.pointColor == 'string') {
this.pointColor = Cesium.Color.fromCssColorString(this.pointColor);
}
this.pointStyle = Cesium.defaultValue(options.pointStyle, 'Ring');//'Solid','Ring','Circle'
this.labelPropertyName = Cesium.defaultValue(options.labelPropertyName, 'NAME');
this.ringRadius = Cesium.defaultValue(options.ringRadius, 2);
this.circleLineWidth = Cesium.defaultValue(options.circleLineWidth, 2);
this.showMaker = Cesium.defaultValue(options.showMaker, true);
this.showLabel = Cesium.defaultValue(options.showLabel, true);
this.showCenterLabel = Cesium.defaultValue(options.showCenterLabel, false);
this.centerLabelPropertyName = options.centerLabelPropertyName;
this.labelOffsetX = Cesium.defaultValue(options.labelOffsetX, 0);
this.labelOffsetY = Cesium.defaultValue(options.labelOffsetY, 0);
this.makerImage = options.makerImage;
this.lineDash = options.lineDash;
//this.lineOffset = options.lineOffset;
this.lineCap = Cesium.defaultValue(options.lineCap, "butt");
this.lineJoin = Cesium.defaultValue(options.lineJoin, "miter");
this.shadowColor = options.shadowColor;
this.shadowBlur = options.shadowBlur;
this.shadowOffsetX = options.shadowOffsetX;
this.shadowOffsetY = options.shadowOffsetY;
this.miterLimit = Cesium.defaultValue(options.miterLimit, 10);
this.makerImageEl = null;
var makerImagePromise = null;
this.readyPromise = Cesium.when.defer();
var that = this;
if (typeof this.makerImage == 'string') {
var image = new Image();
image.onload = function () {
that.makerImageEl = this;
that.readyPromise.resolve(true);
}
image.onerror = function (err) {
that.readyPromise.reject(err);
}
image.src = this.makerImage;
} else {
if (this.makerImage instanceof Image) {
this.makerImageEl = this.makerImage;
}
setTimeout(function () {
that.readyPromise.resolve(true);
}, 10)
}
}
/**
*
*@return {Cesium.VectorStyle}
*/
VectorStyle.prototype.clone = function () {
var style = new VectorStyle();
for (var i in this) {
if (this.hasOwnProperty(i)) {
if (this[i] instanceof Cesium.Color) {
style[i] = Cesium.Color.clone(this[i]);
} else {
style[i] = this[i];
}
}
}
return style;
}
/**
*
*@type {Cesium.VectorStyle}
*/
VectorStyle.Default = new VectorStyle();
return VectorStyle;
});
define('VectorRenderer/VectorLayer',[
'Util/turf',
"Util/shp",
'Util/Path',
'VectorRenderer/VectorStyle'
], function (
turf,
shp,
Path,
VectorStyle
) {
/**
*
*@param {Object} options
*@param {String|turf.FeatureCollection|Object|Array<MeteoLib.Util.Contour.PolyLine>|Array<MeteoLib.Util.Contour.Polygon>}options.source 矢量文件url或者geojson对象
*@param {Cesium.VectorStyle}[options.style=new VectorStyle()] 矢量文件url或者geojson对象
*@param {Boolean}[options.simplify=false] true则简化，默认不简化
*@param {Boolean}[options.simplifyTolerance=0.01] 简化公差
*@memberof Cesium
*@constructor
*/
function VectorLayer(options) {
options = Cesium.defaultValue(options, Cesium.defaultValue.EMPTY_OBJECT);
if (!Cesium.defined(options.source)) {
throw new Cesium.DeveloperError("source is required");
}
var ext = null;
if (typeof options.source == 'string') {
options.source = options.source.toLowerCase();
ext = Path.GetExtension(options.source)
if (ext !== '.shp' && ext !== '.json' && ext !== '.geojson' && ext !== '.topojson') {
throw new Cesium.DeveloperError("The data options.source provide is not supported.");
}
} else if (options.source.type && options.source.type == "FeatureCollection") {
} else if (Cesium.isArray(options.source)) {
if (!(options.source[0] instanceof PolyLine) && (options.source[0] instanceof Polygon)) {
throw new Cesium.DeveloperError("The data options.source provide is not supported.");
}
} else {
throw new Cesium.DeveloperError("The data options.source provide is not supported.");
}
if (ext) {
this._source = options.source.replace('.shp', '');
} else {
this._source = options.source;
}
this._fileExtension = ext;
this._simplifyTolerance = Cesium.defaultValue(options.simplifyTolerance, 0.01);
this._simplify = Cesium.defaultValue(options.simplify, false);
this._ready = false;
/**
*
*@type {Cesium.VectorStyle}
*/
this.style = Cesium.defaultValue(options.style, new VectorStyle());
/**
*
*@type {Promise}
*/
this.readyPromise = Cesium.when.defer();
/**
*
*@type {turf.featureCollection}
*/
this.lines = null;
/**
*
*@type {turf.featureCollection}
*/
this.outlines = null;
/**
*
*@type {turf.featureCollection}
*/
this.points = null;
/**
*
*@type {turf.featureCollection}
*/
this.polygons = null;
/**
*@readonly
*@type {Boolean}
*/
this.onlyPoint = false;
/**
*@readonly
*@type {Array<Number>}
*/
this.bbox = [];
/**
*@readonly
*@type {Cesium.Rectangle}
*/
this.rectangle = null;
var that = this;
var shpPromise = Cesium.when.defer();
function onSuccess(geoJSON) {
try {
initVectorLayer(that, geoJSON);
geoJSON = null;
shpPromise.resolve(that);
} catch (err) {
shpPromise.reject(err);
}
}
var promises = [this.style.readyPromise, shpPromise];
if (ext) {
switch (ext) {
case '.shp':
shp(this._source).then(onSuccess, function (err) {
console.log("load shp file error：" + err);
});
break;
case '.json':
case '.geojson':
case '.topojson':
Cesium.loadText(this._source).then(function (geojson) {
onSuccess(JSON.parse(geojson));
}).otherwise(function (err) {
console.log(err);
})
break;
default:
throw new Cesium.DeveloperError("The file options.source provide is not supported.");
}
} else {
setTimeout(function () {
if (Cesium.isArray(that._source)) {
var contourLines = that._source;
if (contourLines[0] instanceof PolyLine)
{
var coords = [];
var multiLineString = [];
for (var lineNum = 0; lineNum < contourLines.length; lineNum++) {
coords = [];
contourLines[lineNum].PointList.forEach(function (pt) {
coords.push(pt.getCoordArray());
})
multiLineString.push(coords);
}
multiLineString = turf.multiLineString(multiLineString);
multiLineString = turf.featureCollection([multiLineString]);
onSuccess(multiLineString);
}
else if (contourLines[0] instanceof Polygon) {
var multiPolygon = [];
for (var lineNum = 0; lineNum < contourLines.length; lineNum++) {
var coords = [];
contourLines[lineNum].OutLine.PointList.forEach(function (pt) {
coords.push(pt.getCoordArray());
})
var polygon = turf.polygon(coords, contourLines[0].getProperties());
multiPolygon.push(polygon);
}
multiPolygon = turf.featureCollection(multiPolygon);
onSuccess(multiPolygon);
} else {
throw new Cesium.DeveloperError("The data options.source provide is not supported.");
}
} else {
onSuccess(that._source)
}
}, 10)
}
Cesium.when.all(promises, function () {
that._ready = true;
that.readyPromise.resolve(that);
}, function (err) {
that._ready = false;
that.readyPromise.resolve(err);
});
}
function initVectorLayer(vectorLayer, geoJSON) {
var that = vectorLayer;
var tolerance = that._simplifyTolerance;
var lines = [], outlines = [], points = [], polygons = [];
var onlyPoint = true;
turf.featureEach(geoJSON, function (feature, index) {
if (feature.geometry.type == "Point"
|| feature.geometry.type == "MultiPoint") {
points.push(feature);
}
if (feature.geometry.type == "Polygon"
|| feature.geometry.type == "MultiPolygon") {
outlines = outlines.concat(turf.polygonToLineString(feature).features);
onlyPoint = false;
//if (that._fill) {
if (that._simplify) {
simplified = turf.simplify(feature, tolerance, false);
polygons.push(simplified);
} else {
polygons.push(feature);
}
// }
}
if (feature.geometry.type == "MultiLineString"
|| feature.geometry.type == "LineString") {
if (that._simplify) {
simplified = turf.simplify(feature, tolerance, false);
lines.push(simplified);
} else {
lines.push(feature);
}
onlyPoint = false;
}
})
if (lines.length > 0) {
if (!that.lines) {
that.lines = turf.featureCollection(lines);
}
}
if (outlines.length > 0) {
if (!that.outlines) {
that.outlines = turf.featureCollection(outlines);
}
}
if (points.length > 0) {
if (!that.points) {
that.points = turf.featureCollection(points);
}
}
if (polygons.length > 0) {
if (!that.polygons) {
that.polygons = turf.featureCollection(polygons);
}
}
that.onlyPoint = onlyPoint;
that.bbox = turf.bbox(geoJSON);
that.rectangle = Cesium.Rectangle.fromDegrees(that.bbox[0], that.bbox[1], that.bbox[2], that.bbox[3]);
}
Cesium.defineProperties(VectorLayer.prototype, {
ready: {
get: function () {
return this._ready;
}
}
})
return VectorLayer;
});
define('Util/Shp',[
"ThirdParty/shapefile-js-3.3.2/shp",
"ThirdParty/geojson-topojson/lib",
'File'
], function (
shp,
topojson,
FileExtend
) {
/**
* 提供shapefile格式矢量文件解析相关工具
*@class shp
*@memberof MeteoLib.Util
*/
/**
*
*@param {Array.<File>}files
*@return {Object}
* @method
* @name groupFiles
* @static
* @memberof MeteoLib.Util.shp
*/
shp.groupFiles = function (files) {
var shpFile, dbfFile, prjFile;
var group = {};
for (var i = 0; i < files.length; i++) {
var name = Path.ChangeExtension(files[i].name, "");
if (!group[name]) {
group[name] = [];
}
group[name].push(files[i]);
}
return group;
}
/**
*
* @param {Array<File>}files
* @param {Boolean}[toTopojson=false]
* @method
* @name parseShpFiles
* @static
* @memberof MeteoLib.Util.shp
*/
shp.parseShpFiles = function (files, toTopojson) {
if (!files || files.length > 0) {
var promise = Cesium.when.defer();
var shpFile, dbfFile, prjFile;
for (var i = 0; i < files.length; i++) {
if (files[i].name.toLocaleLowerCase().indexOf(".shp") > 0) {
shpFile = files[i];
}
if (files[i].name.toLocaleLowerCase().indexOf(".prj") > 0) {
prjFile = files[i];
}
if (files[i].name.toLocaleLowerCase().indexOf(".dbf") > 0) {
dbfFile = files[i];
}
}
if (!shpFile || !prjFile || !dbfFile) {
throw new Error("打开文件失败,请通过ctrl+同时选择shp、prj、dbf三个文件");
return;
}
var readPromises = [
File.readAsArrayBuffer(shpFile),
File.readAsText(prjFile),
File.readAsArrayBuffer(dbfFile)
];
Cesium.when.all(readPromises, function (buffers) {
var shpBuffer = buffers[0];
var prjBuffer = buffers[1];
var dbfBuffer = buffers[2];
var parsed = shp.combine([shp.parseShp(shpBuffer, prjBuffer), shp.parseDbf(dbfBuffer)]);
parsed.fileName = shpFile.name.toLocaleLowerCase();
if (toTopojson) {
parsed = topojson.topology({
collection: parsed
}, {
"property-transform": function (obj, name, value) {
obj[name] = value;
return obj;
}
});
parsed.fileName = shpFile.name.toLocaleLowerCase();
}
promise.resolve(parsed);
}, function (err) {
promise.reject(err);
});
return promise;
} else {
throw new Error("文件列表不能为空");
}
}
return shp;
});
function LonLatProjection(width, height) {
var imageSize = { width: width, height: height };
function getBoundingRect(regions) {
var LIMIT = Number.MAX_VALUE
var min, max
var boundingRect = { xMin: LIMIT, yMin: LIMIT, xMax: -LIMIT, yMax: -LIMIT }
for (var i = 0, L = regions.length; i < L; i++) {
var rect = regions[i].getBoundingRect()
min = { x: rect.xMin, y: rect.yMin };
max = { x: rect.xMax, y: rect.yMax }
boundingRect.xMin = boundingRect.xMin < min.x ? boundingRect.xMin : min.x
boundingRect.yMin = boundingRect.yMin < min.y ? boundingRect.yMin : min.y
boundingRect.xMax = boundingRect.xMax > max.x ? boundingRect.xMax : max.x
boundingRect.yMax = boundingRect.yMax > max.y ? boundingRect.yMax : max.y
}
return boundingRect
}
function project(coordinate, boundingRect) {
var width = boundingRect.xMax - boundingRect.xMin;
var height = boundingRect.yMin - boundingRect.yMax;
var distanceX = Math.abs(coordinate[0] - boundingRect.xMin);
var distanceY = coordinate[1] - boundingRect.yMax;
var percentX = (distanceX / width);
var percentY = (distanceY / height);
var px = percentX * imageSize.width,
py = percentY * imageSize.height;
return { x: px, y: py };
}
function unproject(pt, boundingRect) {
var width = boundingRect.xMax - boundingRect.xMin;
var height = boundingRect.yMin - boundingRect.yMax;
var lon = (pt.x / imageSize.width) * width,
lat = (pt.y / imageSize.height) * height;
return [lon, lat];
}
this.project = project;
this.unproject = unproject;
this.getBoundingRect = getBoundingRect;
}
if (typeof module === "undefined") {
this.LonLatProjection = LonLatProjection;
} else {
module.exports = LonLatProjection;
}
if (typeof define === "function") {
define('Data/Geojson/LonLatProjection',[],function () { return LonLatProjection; });
};
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
typeof define === 'function' && define.amd ? define('ThirdParty/proj4/dist/proj4-src',factory) :
(global.proj4 = factory());
}(this, (function () { 'use strict';
var globals = function(defs) {
defs('EPSG:4326', "+title=WGS 84 (long/lat) +proj=longlat +ellps=WGS84 +datum=WGS84 +units=degrees");
defs('EPSG:4269', "+title=NAD83 (long/lat) +proj=longlat +a=6378137.0 +b=6356752.31414036 +ellps=GRS80 +datum=NAD83 +units=degrees");
defs('EPSG:3857', "+title=WGS 84 / Pseudo-Mercator +proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgrids=@null +no_defs");
defs.WGS84 = defs['EPSG:4326'];
defs['EPSG:3785'] = defs['EPSG:3857']; // maintain backward compat, official code is 3857
defs.GOOGLE = defs['EPSG:3857'];
defs['EPSG:900913'] = defs['EPSG:3857'];
defs['EPSG:102113'] = defs['EPSG:3857'];
};
var PJD_3PARAM = 1;
var PJD_7PARAM = 2;
var PJD_WGS84 = 4; // WGS84 or equivalent
var PJD_NODATUM = 5; // WGS84 or equivalent
var SEC_TO_RAD = 4.84813681109535993589914102357e-6;
var HALF_PI = Math.PI/2;
// ellipoid pj_set_ell.c
var SIXTH = 0.1666666666666666667;
/* 1/6 */
var RA4 = 0.04722222222222222222;
/* 17/360 */
var RA6 = 0.02215608465608465608;
var EPSLN = 1.0e-10;
// you'd think you could use Number.EPSILON above but that makes
// Mollweide get into an infinate loop.
var D2R = 0.01745329251994329577;
var R2D = 57.29577951308232088;
var FORTPI = Math.PI/4;
var TWO_PI = Math.PI * 2;
// SPI is slightly greater than Math.PI, so values that exceed the -180..180
// degree range by a tiny amount don't get wrapped. This prevents points that
// have drifted from their original location along the 180th meridian (due to
// floating point error) from changing their sign.
var SPI = 3.14159265359;
var exports$1 = {};
exports$1.greenwich = 0.0; //"0dE",
exports$1.lisbon = -9.131906111111; //"9d07'54.862\"W",
exports$1.paris = 2.337229166667; //"2d20'14.025\"E",
exports$1.bogota = -74.080916666667; //"74d04'51.3\"W",
exports$1.madrid = -3.687938888889; //"3d41'16.58\"W",
exports$1.rome = 12.452333333333; //"12d27'8.4\"E",
exports$1.bern = 7.439583333333; //"7d26'22.5\"E",
exports$1.jakarta = 106.807719444444; //"106d48'27.79\"E",
exports$1.ferro = -17.666666666667; //"17d40'W",
exports$1.brussels = 4.367975; //"4d22'4.71\"E",
exports$1.stockholm = 18.058277777778; //"18d3'29.8\"E",
exports$1.athens = 23.7163375; //"23d42'58.815\"E",
exports$1.oslo = 10.722916666667; //"10d43'22.5\"E"
var units = {
ft: {to_meter: 0.3048},
'us-ft': {to_meter: 1200 / 3937}
};
var ignoredChar = /[\s_\-\/\(\)]/g;
function match(obj, key) {
if (obj[key]) {
return obj[key];
}
var keys = Object.keys(obj);
var lkey = key.toLowerCase().replace(ignoredChar, '');
var i = -1;
var testkey, processedKey;
while (++i < keys.length) {
testkey = keys[i];
processedKey = testkey.toLowerCase().replace(ignoredChar, '');
if (processedKey === lkey) {
return obj[testkey];
}
}
}
var parseProj = function(defData) {
var self = {};
var paramObj = defData.split('+').map(function(v) {
return v.trim();
}).filter(function(a) {
return a;
}).reduce(function(p, a) {
var split = a.split('=');
split.push(true);
p[split[0].toLowerCase()] = split[1];
return p;
}, {});
var paramName, paramVal, paramOutname;
var params = {
proj: 'projName',
datum: 'datumCode',
rf: function(v) {
self.rf = parseFloat(v);
},
lat_0: function(v) {
self.lat0 = v * D2R;
},
lat_1: function(v) {
self.lat1 = v * D2R;
},
lat_2: function(v) {
self.lat2 = v * D2R;
},
lat_ts: function(v) {
self.lat_ts = v * D2R;
},
lon_0: function(v) {
self.long0 = v * D2R;
},
lon_1: function(v) {
self.long1 = v * D2R;
},
lon_2: function(v) {
self.long2 = v * D2R;
},
alpha: function(v) {
self.alpha = parseFloat(v) * D2R;
},
lonc: function(v) {
self.longc = v * D2R;
},
x_0: function(v) {
self.x0 = parseFloat(v);
},
y_0: function(v) {
self.y0 = parseFloat(v);
},
k_0: function(v) {
self.k0 = parseFloat(v);
},
k: function(v) {
self.k0 = parseFloat(v);
},
a: function(v) {
self.a = parseFloat(v);
},
b: function(v) {
self.b = parseFloat(v);
},
r_a: function() {
self.R_A = true;
},
zone: function(v) {
self.zone = parseInt(v, 10);
},
south: function() {
self.utmSouth = true;
},
towgs84: function(v) {
self.datum_params = v.split(",").map(function(a) {
return parseFloat(a);
});
},
to_meter: function(v) {
self.to_meter = parseFloat(v);
},
units: function(v) {
self.units = v;
var unit = match(units, v);
if (unit) {
self.to_meter = unit.to_meter;
}
},
from_greenwich: function(v) {
self.from_greenwich = v * D2R;
},
pm: function(v) {
var pm = match(exports$1, v);
self.from_greenwich = (pm ? pm : parseFloat(v)) * D2R;
},
nadgrids: function(v) {
if (v === '@null') {
self.datumCode = 'none';
}
else {
self.nadgrids = v;
}
},
axis: function(v) {
var legalAxis = "ewnsud";
if (v.length === 3 && legalAxis.indexOf(v.substr(0, 1)) !== -1 && legalAxis.indexOf(v.substr(1, 1)) !== -1 && legalAxis.indexOf(v.substr(2, 1)) !== -1) {
self.axis = v;
}
}
};
for (paramName in paramObj) {
paramVal = paramObj[paramName];
if (paramName in params) {
paramOutname = params[paramName];
if (typeof paramOutname === 'function') {
paramOutname(paramVal);
}
else {
self[paramOutname] = paramVal;
}
}
else {
self[paramName] = paramVal;
}
}
if(typeof self.datumCode === 'string' && self.datumCode !== "WGS84"){
self.datumCode = self.datumCode.toLowerCase();
}
return self;
};
var NEUTRAL = 1;
var KEYWORD = 2;
var NUMBER = 3;
var QUOTED = 4;
var AFTERQUOTE = 5;
var ENDED = -1;
var whitespace = /\s/;
var latin = /[A-Za-z]/;
var keyword = /[A-Za-z84]/;
var endThings = /[,\]]/;
var digets = /[\d\.E\-\+]/;
// const ignoredChar = /[\s_\-\/\(\)]/g;
function Parser(text) {
if (typeof text !== 'string') {
throw new Error('not a string');
}
this.text = text.trim();
this.level = 0;
this.place = 0;
this.root = null;
this.stack = [];
this.currentObject = null;
this.state = NEUTRAL;
}
Parser.prototype.readCharicter = function() {
var char = this.text[this.place++];
if (this.state !== QUOTED) {
while (whitespace.test(char)) {
if (this.place >= this.text.length) {
return;
}
char = this.text[this.place++];
}
}
switch (this.state) {
case NEUTRAL:
return this.neutral(char);
case KEYWORD:
return this.keyword(char)
case QUOTED:
return this.quoted(char);
case AFTERQUOTE:
return this.afterquote(char);
case NUMBER:
return this.number(char);
case ENDED:
return;
}
};
Parser.prototype.afterquote = function(char) {
if (char === '"') {
this.word += '"';
this.state = QUOTED;
return;
}
if (endThings.test(char)) {
this.word = this.word.trim();
this.afterItem(char);
return;
}
throw new Error('havn\'t handled "' +char + '" in afterquote yet, index ' + this.place);
};
Parser.prototype.afterItem = function(char) {
if (char === ',') {
if (this.word !== null) {
this.currentObject.push(this.word);
}
this.word = null;
this.state = NEUTRAL;
return;
}
if (char === ']') {
this.level--;
if (this.word !== null) {
this.currentObject.push(this.word);
this.word = null;
}
this.state = NEUTRAL;
this.currentObject = this.stack.pop();
if (!this.currentObject) {
this.state = ENDED;
}
return;
}
};
Parser.prototype.number = function(char) {
if (digets.test(char)) {
this.word += char;
return;
}
if (endThings.test(char)) {
this.word = parseFloat(this.word);
this.afterItem(char);
return;
}
throw new Error('havn\'t handled "' +char + '" in number yet, index ' + this.place);
};
Parser.prototype.quoted = function(char) {
if (char === '"') {
this.state = AFTERQUOTE;
return;
}
this.word += char;
return;
};
Parser.prototype.keyword = function(char) {
if (keyword.test(char)) {
this.word += char;
return;
}
if (char === '[') {
var newObjects = [];
newObjects.push(this.word);
this.level++;
if (this.root === null) {
this.root = newObjects;
} else {
this.currentObject.push(newObjects);
}
this.stack.push(this.currentObject);
this.currentObject = newObjects;
this.state = NEUTRAL;
return;
}
if (endThings.test(char)) {
this.afterItem(char);
return;
}
throw new Error('havn\'t handled "' +char + '" in keyword yet, index ' + this.place);
};
Parser.prototype.neutral = function(char) {
if (latin.test(char)) {
this.word = char;
this.state = KEYWORD;
return;
}
if (char === '"') {
this.word = '';
this.state = QUOTED;
return;
}
if (digets.test(char)) {
this.word = char;
this.state = NUMBER;
return;
}
if (endThings.test(char)) {
this.afterItem(char);
return;
}
throw new Error('havn\'t handled "' +char + '" in neutral yet, index ' + this.place);
};
Parser.prototype.output = function() {
while (this.place < this.text.length) {
this.readCharicter();
}
if (this.state === ENDED) {
return this.root;
}
throw new Error('unable to parse string "' +this.text + '". State is ' + this.state);
};
function parseString(txt) {
var parser = new Parser(txt);
return parser.output();
}
function mapit(obj, key, value) {
if (Array.isArray(key)) {
value.unshift(key);
key = null;
}
var thing = key ? {} : obj;
var out = value.reduce(function(newObj, item) {
sExpr(item, newObj);
return newObj
}, thing);
if (key) {
obj[key] = out;
}
}
function sExpr(v, obj) {
if (!Array.isArray(v)) {
obj[v] = true;
return;
}
var key = v.shift();
if (key === 'PARAMETER') {
key = v.shift();
}
if (v.length === 1) {
if (Array.isArray(v[0])) {
obj[key] = {};
sExpr(v[0], obj[key]);
return;
}
obj[key] = v[0];
return;
}
if (!v.length) {
obj[key] = true;
return;
}
if (key === 'TOWGS84') {
obj[key] = v;
return;
}
if (!Array.isArray(key)) {
obj[key] = {};
}
var i;
switch (key) {
case 'UNIT':
case 'PRIMEM':
case 'VERT_DATUM':
obj[key] = {
name: v[0].toLowerCase(),
convert: v[1]
};
if (v.length === 3) {
sExpr(v[2], obj[key]);
}
return;
case 'SPHEROID':
case 'ELLIPSOID':
obj[key] = {
name: v[0],
a: v[1],
rf: v[2]
};
if (v.length === 4) {
sExpr(v[3], obj[key]);
}
return;
case 'PROJECTEDCRS':
case 'PROJCRS':
case 'GEOGCS':
case 'GEOCCS':
case 'PROJCS':
case 'LOCAL_CS':
case 'GEODCRS':
case 'GEODETICCRS':
case 'GEODETICDATUM':
case 'EDATUM':
case 'ENGINEERINGDATUM':
case 'VERT_CS':
case 'VERTCRS':
case 'VERTICALCRS':
case 'COMPD_CS':
case 'COMPOUNDCRS':
case 'ENGINEERINGCRS':
case 'ENGCRS':
case 'FITTED_CS':
case 'LOCAL_DATUM':
case 'DATUM':
v[0] = ['name', v[0]];
mapit(obj, key, v);
return;
default:
i = -1;
while (++i < v.length) {
if (!Array.isArray(v[i])) {
return sExpr(v, obj[key]);
}
}
return mapit(obj, key, v);
}
}
var D2R$1 = 0.01745329251994329577;
function rename(obj, params) {
var outName = params[0];
var inName = params[1];
if (!(outName in obj) && (inName in obj)) {
obj[outName] = obj[inName];
if (params.length === 3) {
obj[outName] = params[2](obj[outName]);
}
}
}
function d2r(input) {
return input * D2R$1;
}
function cleanWKT(wkt) {
if (wkt.type === 'GEOGCS') {
wkt.projName = 'longlat';
} else if (wkt.type === 'LOCAL_CS') {
wkt.projName = 'identity';
wkt.local = true;
} else {
if (typeof wkt.PROJECTION === 'object') {
wkt.projName = Object.keys(wkt.PROJECTION)[0];
} else {
wkt.projName = wkt.PROJECTION;
}
}
if (wkt.UNIT) {
wkt.units = wkt.UNIT.name.toLowerCase();
if (wkt.units === 'metre') {
wkt.units = 'meter';
}
if (wkt.UNIT.convert) {
if (wkt.type === 'GEOGCS') {
if (wkt.DATUM && wkt.DATUM.SPHEROID) {
wkt.to_meter = wkt.UNIT.convert*wkt.DATUM.SPHEROID.a;
}
} else {
wkt.to_meter = wkt.UNIT.convert, 10;
}
}
}
var geogcs = wkt.GEOGCS;
if (wkt.type === 'GEOGCS') {
geogcs = wkt;
}
if (geogcs) {
//if(wkt.GEOGCS.PRIMEM&&wkt.GEOGCS.PRIMEM.convert){
// wkt.from_greenwich=wkt.GEOGCS.PRIMEM.convert*D2R;
//}
if (geogcs.DATUM) {
wkt.datumCode = geogcs.DATUM.name.toLowerCase();
} else {
wkt.datumCode = geogcs.name.toLowerCase();
}
if (wkt.datumCode.slice(0, 2) === 'd_') {
wkt.datumCode = wkt.datumCode.slice(2);
}
if (wkt.datumCode === 'new_zealand_geodetic_datum_1949' || wkt.datumCode === 'new_zealand_1949') {
wkt.datumCode = 'nzgd49';
}
if (wkt.datumCode === 'wgs_1984') {
if (wkt.PROJECTION === 'Mercator_Auxiliary_Sphere') {
wkt.sphere = true;
}
wkt.datumCode = 'wgs84';
}
if (wkt.datumCode.slice(-6) === '_ferro') {
wkt.datumCode = wkt.datumCode.slice(0, - 6);
}
if (wkt.datumCode.slice(-8) === '_jakarta') {
wkt.datumCode = wkt.datumCode.slice(0, - 8);
}
if (~wkt.datumCode.indexOf('belge')) {
wkt.datumCode = 'rnb72';
}
if (geogcs.DATUM && geogcs.DATUM.SPHEROID) {
wkt.ellps = geogcs.DATUM.SPHEROID.name.replace('_19', '').replace(/[Cc]larke\_18/, 'clrk');
if (wkt.ellps.toLowerCase().slice(0, 13) === 'international') {
wkt.ellps = 'intl';
}
wkt.a = geogcs.DATUM.SPHEROID.a;
wkt.rf = parseFloat(geogcs.DATUM.SPHEROID.rf, 10);
}
if (~wkt.datumCode.indexOf('osgb_1936')) {
wkt.datumCode = 'osgb36';
}
if (~wkt.datumCode.indexOf('osni_1952')) {
wkt.datumCode = 'osni52';
}
if (~wkt.datumCode.indexOf('tm65')
|| ~wkt.datumCode.indexOf('geodetic_datum_of_1965')) {
wkt.datumCode = 'ire65';
}
}
if (wkt.b && !isFinite(wkt.b)) {
wkt.b = wkt.a;
}
function toMeter(input) {
var ratio = wkt.to_meter || 1;
return input * ratio;
}
var renamer = function(a) {
return rename(wkt, a);
};
var list = [
['standard_parallel_1', 'Standard_Parallel_1'],
['standard_parallel_2', 'Standard_Parallel_2'],
['false_easting', 'False_Easting'],
['false_northing', 'False_Northing'],
['central_meridian', 'Central_Meridian'],
['latitude_of_origin', 'Latitude_Of_Origin'],
['latitude_of_origin', 'Central_Parallel'],
['scale_factor', 'Scale_Factor'],
['k0', 'scale_factor'],
['latitude_of_center', 'Latitude_of_center'],
['lat0', 'latitude_of_center', d2r],
['longitude_of_center', 'Longitude_Of_Center'],
['longc', 'longitude_of_center', d2r],
['x0', 'false_easting', toMeter],
['y0', 'false_northing', toMeter],
['long0', 'central_meridian', d2r],
['lat0', 'latitude_of_origin', d2r],
['lat0', 'standard_parallel_1', d2r],
['lat1', 'standard_parallel_1', d2r],
['lat2', 'standard_parallel_2', d2r],
['alpha', 'azimuth', d2r],
['srsCode', 'name']
];
list.forEach(renamer);
if (!wkt.long0 && wkt.longc && (wkt.projName === 'Albers_Conic_Equal_Area' || wkt.projName === 'Lambert_Azimuthal_Equal_Area')) {
wkt.long0 = wkt.longc;
}
if (!wkt.lat_ts && wkt.lat1 && (wkt.projName === 'Stereographic_South_Pole' || wkt.projName === 'Polar Stereographic (variant B)')) {
wkt.lat0 = d2r(wkt.lat1 > 0 ? 90 : -90);
wkt.lat_ts = wkt.lat1;
}
}
var wkt = function(wkt) {
var lisp = parseString(wkt);
var type = lisp.shift();
var name = lisp.shift();
lisp.unshift(['name', name]);
lisp.unshift(['type', type]);
var obj = {};
sExpr(lisp, obj);
cleanWKT(obj);
return obj;
};
function defs(name) {
/*global console*/
var that = this;
if (arguments.length === 2) {
var def = arguments[1];
if (typeof def === 'string') {
if (def.charAt(0) === '+') {
defs[name] = parseProj(arguments[1]);
}
else {
defs[name] = wkt(arguments[1]);
}
} else {
defs[name] = def;
}
}
else if (arguments.length === 1) {
if (Array.isArray(name)) {
return name.map(function(v) {
if (Array.isArray(v)) {
defs.apply(that, v);
}
else {
defs(v);
}
});
}
else if (typeof name === 'string') {
if (name in defs) {
return defs[name];
}
}
else if ('EPSG' in name) {
defs['EPSG:' + name.EPSG] = name;
}
else if ('ESRI' in name) {
defs['ESRI:' + name.ESRI] = name;
}
else if ('IAU2000' in name) {
defs['IAU2000:' + name.IAU2000] = name;
}
else {
console.log(name);
}
return;
}
}
globals(defs);
function testObj(code){
return typeof code === 'string';
}
function testDef(code){
return code in defs;
}
var codeWords = ['PROJECTEDCRS', 'PROJCRS', 'GEOGCS','GEOCCS','PROJCS','LOCAL_CS', 'GEODCRS', 'GEODETICCRS', 'GEODETICDATUM', 'ENGCRS', 'ENGINEERINGCRS'];
function testWKT(code){
return codeWords.some(function (word) {
return code.indexOf(word) > -1;
});
}
function testProj(code){
return code[0] === '+';
}
function parse(code){
if (testObj(code)) {
//check to see if this is a WKT string
if (testDef(code)) {
return defs[code];
}
if (testWKT(code)) {
return wkt(code);
}
if (testProj(code)) {
return parseProj(code);
}
}else{
return code;
}
}
var extend = function(destination, source) {
destination = destination || {};
var value, property;
if (!source) {
return destination;
}
for (property in source) {
value = source[property];
if (value !== undefined) {
destination[property] = value;
}
}
return destination;
};
var msfnz = function(eccent, sinphi, cosphi) {
var con = eccent * sinphi;
return cosphi / (Math.sqrt(1 - con * con));
};
var sign = function(x) {
return x<0 ? -1 : 1;
};
var adjust_lon = function(x) {
return (Math.abs(x) <= SPI) ? x : (x - (sign(x) * TWO_PI));
};
var tsfnz = function(eccent, phi, sinphi) {
var con = eccent * sinphi;
var com = 0.5 * eccent;
con = Math.pow(((1 - con) / (1 + con)), com);
return (Math.tan(0.5 * (HALF_PI - phi)) / con);
};
var phi2z = function(eccent, ts) {
var eccnth = 0.5 * eccent;
var con, dphi;
var phi = HALF_PI - 2 * Math.atan(ts);
for (var i = 0; i <= 15; i++) {
con = eccent * Math.sin(phi);
dphi = HALF_PI - 2 * Math.atan(ts * (Math.pow(((1 - con) / (1 + con)), eccnth))) - phi;
phi += dphi;
if (Math.abs(dphi) <= 0.0000000001) {
return phi;
}
}
//console.log("phi2z has NoConvergence");
return -9999;
};
function init() {
var con = this.b / this.a;
this.es = 1 - con * con;
if(!('x0' in this)){
this.x0 = 0;
}
if(!('y0' in this)){
this.y0 = 0;
}
this.e = Math.sqrt(this.es);
if (this.lat_ts) {
if (this.sphere) {
this.k0 = Math.cos(this.lat_ts);
}
else {
this.k0 = msfnz(this.e, Math.sin(this.lat_ts), Math.cos(this.lat_ts));
}
}
else {
if (!this.k0) {
if (this.k) {
this.k0 = this.k;
}
else {
this.k0 = 1;
}
}
}
}
/* Mercator forward equations--mapping lat,long to x,y
--------------------------------------------------*/
function forward(p) {
var lon = p.x;
var lat = p.y;
// convert to radians
if (lat * R2D > 90 && lat * R2D < -90 && lon * R2D > 180 && lon * R2D < -180) {
return null;
}
var x, y;
if (Math.abs(Math.abs(lat) - HALF_PI) <= EPSLN) {
return null;
}
else {
if (this.sphere) {
x = this.x0 + this.a * this.k0 * adjust_lon(lon - this.long0);
y = this.y0 + this.a * this.k0 * Math.log(Math.tan(FORTPI + 0.5 * lat));
}
else {
var sinphi = Math.sin(lat);
var ts = tsfnz(this.e, lat, sinphi);
x = this.x0 + this.a * this.k0 * adjust_lon(lon - this.long0);
y = this.y0 - this.a * this.k0 * Math.log(ts);
}
p.x = x;
p.y = y;
return p;
}
}
/* Mercator inverse equations--mapping x,y to lat/long
--------------------------------------------------*/
function inverse(p) {
var x = p.x - this.x0;
var y = p.y - this.y0;
var lon, lat;
if (this.sphere) {
lat = HALF_PI - 2 * Math.atan(Math.exp(-y / (this.a * this.k0)));
}
else {
var ts = Math.exp(-y / (this.a * this.k0));
lat = phi2z(this.e, ts);
if (lat === -9999) {
return null;
}
}
lon = adjust_lon(this.long0 + x / (this.a * this.k0));
p.x = lon;
p.y = lat;
return p;
}
var names$1 = ["Mercator", "Popular Visualisation Pseudo Mercator", "Mercator_1SP", "Mercator_Auxiliary_Sphere", "merc"];
var merc = {
init: init,
forward: forward,
inverse: inverse,
names: names$1
};
function init$1() {
//no-op for longlat
}
function identity(pt) {
return pt;
}
var names$2 = ["longlat", "identity"];
var longlat = {
init: init$1,
forward: identity,
inverse: identity,
names: names$2
};
var projs = [merc, longlat];
var names$$1 = {};
var projStore = [];
function add(proj, i) {
var len = projStore.length;
if (!proj.names) {
console.log(i);
return true;
}
projStore[len] = proj;
proj.names.forEach(function(n) {
names$$1[n.toLowerCase()] = len;
});
return this;
}
function get(name) {
if (!name) {
return false;
}
var n = name.toLowerCase();
if (typeof names$$1[n] !== 'undefined' && projStore[names$$1[n]]) {
return projStore[names$$1[n]];
}
}
function start() {
projs.forEach(add);
}
var projections = {
start: start,
add: add,
get: get
};
var exports$2 = {};
exports$2.MERIT = {
a: 6378137.0,
rf: 298.257,
ellipseName: "MERIT 1983"
};
exports$2.SGS85 = {
a: 6378136.0,
rf: 298.257,
ellipseName: "Soviet Geodetic System 85"
};
exports$2.GRS80 = {
a: 6378137.0,
rf: 298.257222101,
ellipseName: "GRS 1980(IUGG, 1980)"
};
exports$2.IAU76 = {
a: 6378140.0,
rf: 298.257,
ellipseName: "IAU 1976"
};
exports$2.airy = {
a: 6377563.396,
b: 6356256.910,
ellipseName: "Airy 1830"
};
exports$2.APL4 = {
a: 6378137,
rf: 298.25,
ellipseName: "Appl. Physics. 1965"
};
exports$2.NWL9D = {
a: 6378145.0,
rf: 298.25,
ellipseName: "Naval Weapons Lab., 1965"
};
exports$2.mod_airy = {
a: 6377340.189,
b: 6356034.446,
ellipseName: "Modified Airy"
};
exports$2.andrae = {
a: 6377104.43,
rf: 300.0,
ellipseName: "Andrae 1876 (Den., Iclnd.)"
};
exports$2.aust_SA = {
a: 6378160.0,
rf: 298.25,
ellipseName: "Australian Natl & S. Amer. 1969"
};
exports$2.GRS67 = {
a: 6378160.0,
rf: 298.2471674270,
ellipseName: "GRS 67(IUGG 1967)"
};
exports$2.bessel = {
a: 6377397.155,
rf: 299.1528128,
ellipseName: "Bessel 1841"
};
exports$2.bess_nam = {
a: 6377483.865,
rf: 299.1528128,
ellipseName: "Bessel 1841 (Namibia)"
};
exports$2.clrk66 = {
a: 6378206.4,
b: 6356583.8,
ellipseName: "Clarke 1866"
};
exports$2.clrk80 = {
a: 6378249.145,
rf: 293.4663,
ellipseName: "Clarke 1880 mod."
};
exports$2.clrk58 = {
a: 6378293.645208759,
rf: 294.2606763692654,
ellipseName: "Clarke 1858"
};
exports$2.CPM = {
a: 6375738.7,
rf: 334.29,
ellipseName: "Comm. des Poids et Mesures 1799"
};
exports$2.delmbr = {
a: 6376428.0,
rf: 311.5,
ellipseName: "Delambre 1810 (Belgium)"
};
exports$2.engelis = {
a: 6378136.05,
rf: 298.2566,
ellipseName: "Engelis 1985"
};
exports$2.evrst30 = {
a: 6377276.345,
rf: 300.8017,
ellipseName: "Everest 1830"
};
exports$2.evrst48 = {
a: 6377304.063,
rf: 300.8017,
ellipseName: "Everest 1948"
};
exports$2.evrst56 = {
a: 6377301.243,
rf: 300.8017,
ellipseName: "Everest 1956"
};
exports$2.evrst69 = {
a: 6377295.664,
rf: 300.8017,
ellipseName: "Everest 1969"
};
exports$2.evrstSS = {
a: 6377298.556,
rf: 300.8017,
ellipseName: "Everest (Sabah & Sarawak)"
};
exports$2.fschr60 = {
a: 6378166.0,
rf: 298.3,
ellipseName: "Fischer (Mercury Datum) 1960"
};
exports$2.fschr60m = {
a: 6378155.0,
rf: 298.3,
ellipseName: "Fischer 1960"
};
exports$2.fschr68 = {
a: 6378150.0,
rf: 298.3,
ellipseName: "Fischer 1968"
};
exports$2.helmert = {
a: 6378200.0,
rf: 298.3,
ellipseName: "Helmert 1906"
};
exports$2.hough = {
a: 6378270.0,
rf: 297.0,
ellipseName: "Hough"
};
exports$2.intl = {
a: 6378388.0,
rf: 297.0,
ellipseName: "International 1909 (Hayford)"
};
exports$2.kaula = {
a: 6378163.0,
rf: 298.24,
ellipseName: "Kaula 1961"
};
exports$2.lerch = {
a: 6378139.0,
rf: 298.257,
ellipseName: "Lerch 1979"
};
exports$2.mprts = {
a: 6397300.0,
rf: 191.0,
ellipseName: "Maupertius 1738"
};
exports$2.new_intl = {
a: 6378157.5,
b: 6356772.2,
ellipseName: "New International 1967"
};
exports$2.plessis = {
a: 6376523.0,
rf: 6355863.0,
ellipseName: "Plessis 1817 (France)"
};
exports$2.krass = {
a: 6378245.0,
rf: 298.3,
ellipseName: "Krassovsky, 1942"
};
exports$2.SEasia = {
a: 6378155.0,
b: 6356773.3205,
ellipseName: "Southeast Asia"
};
exports$2.walbeck = {
a: 6376896.0,
b: 6355834.8467,
ellipseName: "Walbeck"
};
exports$2.WGS60 = {
a: 6378165.0,
rf: 298.3,
ellipseName: "WGS 60"
};
exports$2.WGS66 = {
a: 6378145.0,
rf: 298.25,
ellipseName: "WGS 66"
};
exports$2.WGS7 = {
a: 6378135.0,
rf: 298.26,
ellipseName: "WGS 72"
};
var WGS84 = exports$2.WGS84 = {
a: 6378137.0,
rf: 298.257223563,
ellipseName: "WGS 84"
};
exports$2.sphere = {
a: 6370997.0,
b: 6370997.0,
ellipseName: "Normal Sphere (r=6370997)"
};
function eccentricity(a, b, rf, R_A) {
var a2 = a * a; // used in geocentric
var b2 = b * b; // used in geocentric
var es = (a2 - b2) / a2; // e ^ 2
var e = 0;
if (R_A) {
a *= 1 - es * (SIXTH + es * (RA4 + es * RA6));
a2 = a * a;
es = 0;
} else {
e = Math.sqrt(es); // eccentricity
}
var ep2 = (a2 - b2) / b2; // used in geocentric
return {
es: es,
e: e,
ep2: ep2
};
}
function sphere(a, b, rf, ellps, sphere) {
if (!a) { // do we have an ellipsoid?
var ellipse = match(exports$2, ellps);
if (!ellipse) {
ellipse = WGS84;
}
a = ellipse.a;
b = ellipse.b;
rf = ellipse.rf;
}
if (rf && !b) {
b = (1.0 - 1.0 / rf) * a;
}
if (rf === 0 || Math.abs(a - b) < EPSLN) {
sphere = true;
b = a;
}
return {
a: a,
b: b,
rf: rf,
sphere: sphere
};
}
var exports$3 = {};
exports$3.wgs84 = {
towgs84: "0,0,0",
ellipse: "WGS84",
datumName: "WGS84"
};
exports$3.ch1903 = {
towgs84: "674.374,15.056,405.346",
ellipse: "bessel",
datumName: "swiss"
};
exports$3.ggrs87 = {
towgs84: "-199.87,74.79,246.62",
ellipse: "GRS80",
datumName: "Greek_Geodetic_Reference_System_1987"
};
exports$3.nad83 = {
towgs84: "0,0,0",
ellipse: "GRS80",
datumName: "North_American_Datum_1983"
};
exports$3.nad27 = {
nadgrids: "@conus,@alaska,@ntv2_0.gsb,@ntv1_can.dat",
ellipse: "clrk66",
datumName: "North_American_Datum_1927"
};
exports$3.potsdam = {
towgs84: "606.0,23.0,413.0",
ellipse: "bessel",
datumName: "Potsdam Rauenberg 1950 DHDN"
};
exports$3.carthage = {
towgs84: "-263.0,6.0,431.0",
ellipse: "clark80",
datumName: "Carthage 1934 Tunisia"
};
exports$3.hermannskogel = {
towgs84: "653.0,-212.0,449.0",
ellipse: "bessel",
datumName: "Hermannskogel"
};
exports$3.osni52 = {
towgs84: "482.530,-130.596,564.557,-1.042,-0.214,-0.631,8.15",
ellipse: "airy",
datumName: "Irish National"
};
exports$3.ire65 = {
towgs84: "482.530,-130.596,564.557,-1.042,-0.214,-0.631,8.15",
ellipse: "mod_airy",
datumName: "Ireland 1965"
};
exports$3.rassadiran = {
towgs84: "-133.63,-157.5,-158.62",
ellipse: "intl",
datumName: "Rassadiran"
};
exports$3.nzgd49 = {
towgs84: "59.47,-5.04,187.44,0.47,-0.1,1.024,-4.5993",
ellipse: "intl",
datumName: "New Zealand Geodetic Datum 1949"
};
exports$3.osgb36 = {
towgs84: "446.448,-125.157,542.060,0.1502,0.2470,0.8421,-20.4894",
ellipse: "airy",
datumName: "Airy 1830"
};
exports$3.s_jtsk = {
towgs84: "589,76,480",
ellipse: 'bessel',
datumName: 'S-JTSK (Ferro)'
};
exports$3.beduaram = {
towgs84: '-106,-87,188',
ellipse: 'clrk80',
datumName: 'Beduaram'
};
exports$3.gunung_segara = {
towgs84: '-403,684,41',
ellipse: 'bessel',
datumName: 'Gunung Segara Jakarta'
};
exports$3.rnb72 = {
towgs84: "106.869,-52.2978,103.724,-0.33657,0.456955,-1.84218,1",
ellipse: "intl",
datumName: "Reseau National Belge 1972"
};
function datum(datumCode, datum_params, a, b, es, ep2) {
var out = {};
if (datumCode === undefined || datumCode === 'none') {
out.datum_type = PJD_NODATUM;
} else {
out.datum_type = PJD_WGS84;
}
if (datum_params) {
out.datum_params = datum_params.map(parseFloat);
if (out.datum_params[0] !== 0 || out.datum_params[1] !== 0 || out.datum_params[2] !== 0) {
out.datum_type = PJD_3PARAM;
}
if (out.datum_params.length > 3) {
if (out.datum_params[3] !== 0 || out.datum_params[4] !== 0 || out.datum_params[5] !== 0 || out.datum_params[6] !== 0) {
out.datum_type = PJD_7PARAM;
out.datum_params[3] *= SEC_TO_RAD;
out.datum_params[4] *= SEC_TO_RAD;
out.datum_params[5] *= SEC_TO_RAD;
out.datum_params[6] = (out.datum_params[6] / 1000000.0) + 1.0;
}
}
}
out.a = a; //datum object also uses these values
out.b = b;
out.es = es;
out.ep2 = ep2;
return out;
}
function Projection$1(srsCode,callback) {
if (!(this instanceof Projection$1)) {
return new Projection$1(srsCode);
}
callback = callback || function(error){
if(error){
throw error;
}
};
var json = parse(srsCode);
if(typeof json !== 'object'){
callback(srsCode);
return;
}
var ourProj = Projection$1.projections.get(json.projName);
if(!ourProj){
callback(srsCode);
return;
}
if (json.datumCode && json.datumCode !== 'none') {
var datumDef = match(exports$3, json.datumCode);
if (datumDef) {
json.datum_params = datumDef.towgs84 ? datumDef.towgs84.split(',') : null;
json.ellps = datumDef.ellipse;
json.datumName = datumDef.datumName ? datumDef.datumName : json.datumCode;
}
}
json.k0 = json.k0 || 1.0;
json.axis = json.axis || 'enu';
json.ellps = json.ellps || 'wgs84';
var sphere_ = sphere(json.a, json.b, json.rf, json.ellps, json.sphere);
var ecc = eccentricity(sphere_.a, sphere_.b, sphere_.rf, json.R_A);
var datumObj = json.datum || datum(json.datumCode, json.datum_params, sphere_.a, sphere_.b, ecc.es, ecc.ep2);
extend(this, json); // transfer everything over from the projection because we don't know what we'll need
extend(this, ourProj); // transfer all the methods from the projection
// copy the 4 things over we calulated in deriveConstants.sphere
this.a = sphere_.a;
this.b = sphere_.b;
this.rf = sphere_.rf;
this.sphere = sphere_.sphere;
// copy the 3 things we calculated in deriveConstants.eccentricity
this.es = ecc.es;
this.e = ecc.e;
this.ep2 = ecc.ep2;
// add in the datum object
this.datum = datumObj;
// init the projection
this.init();
// legecy callback from back in the day when it went to spatialreference.org
callback(null, this);
}
Projection$1.projections = projections;
Projection$1.projections.start();
function compareDatums(source, dest) {
if (source.datum_type !== dest.datum_type) {
return false; // false, datums are not equal
} else if (source.a !== dest.a || Math.abs(source.es - dest.es) > 0.000000000050) {
// the tolerance for es is to ensure that GRS80 and WGS84
// are considered identical
return false;
} else if (source.datum_type === PJD_3PARAM) {
return (source.datum_params[0] === dest.datum_params[0] && source.datum_params[1] === dest.datum_params[1] && source.datum_params[2] === dest.datum_params[2]);
} else if (source.datum_type === PJD_7PARAM) {
return (source.datum_params[0] === dest.datum_params[0] && source.datum_params[1] === dest.datum_params[1] && source.datum_params[2] === dest.datum_params[2] && source.datum_params[3] === dest.datum_params[3] && source.datum_params[4] === dest.datum_params[4] && source.datum_params[5] === dest.datum_params[5] && source.datum_params[6] === dest.datum_params[6]);
} else {
return true; // datums are equal
}
} // cs_compare_datums()
/*
* The function Convert_Geodetic_To_Geocentric converts geodetic coordinates
* (latitude, longitude, and height) to geocentric coordinates (X, Y, Z),
* according to the current ellipsoid parameters.
*
* Latitude : Geodetic latitude in radians (input)
* Longitude : Geodetic longitude in radians (input)
* Height : Geodetic height, in meters (input)
* X : Calculated Geocentric X coordinate, in meters (output)
* Y : Calculated Geocentric Y coordinate, in meters (output)
* Z : Calculated Geocentric Z coordinate, in meters (output)
*
*/
function geodeticToGeocentric(p, es, a) {
var Longitude = p.x;
var Latitude = p.y;
var Height = p.z ? p.z : 0; //Z value not always supplied
var Rn; /* Earth radius at location */
var Sin_Lat; /* Math.sin(Latitude) */
var Sin2_Lat; /* Square of Math.sin(Latitude) */
var Cos_Lat; /* Math.cos(Latitude) */
/*
** Don't blow up if Latitude is just a little out of the value
** range as it may just be a rounding issue. Also removed longitude
** test, it should be wrapped by Math.cos() and Math.sin(). NFW for PROJ.4, Sep/2001.
*/
if (Latitude < -HALF_PI && Latitude > -1.001 * HALF_PI) {
Latitude = -HALF_PI;
} else if (Latitude > HALF_PI && Latitude < 1.001 * HALF_PI) {
Latitude = HALF_PI;
} else if ((Latitude < -HALF_PI) || (Latitude > HALF_PI)) {
/* Latitude out of range */
//..reportError('geocent:lat out of range:' + Latitude);
return null;
}
if (Longitude > Math.PI) {
Longitude -= (2 * Math.PI);
}
Sin_Lat = Math.sin(Latitude);
Cos_Lat = Math.cos(Latitude);
Sin2_Lat = Sin_Lat * Sin_Lat;
Rn = a / (Math.sqrt(1.0e0 - es * Sin2_Lat));
return {
x: (Rn + Height) * Cos_Lat * Math.cos(Longitude),
y: (Rn + Height) * Cos_Lat * Math.sin(Longitude),
z: ((Rn * (1 - es)) + Height) * Sin_Lat
};
} // cs_geodetic_to_geocentric()
function geocentricToGeodetic(p, es, a, b) {
/* local defintions and variables */
/* end-criterium of loop, accuracy of sin(Latitude) */
var genau = 1e-12;
var genau2 = (genau * genau);
var maxiter = 30;
var P; /* distance between semi-minor axis and location */
var RR; /* distance between center and location */
var CT; /* sin of geocentric latitude */
var ST; /* cos of geocentric latitude */
var RX;
var RK;
var RN; /* Earth radius at location */
var CPHI0; /* cos of start or old geodetic latitude in iterations */
var SPHI0; /* sin of start or old geodetic latitude in iterations */
var CPHI; /* cos of searched geodetic latitude */
var SPHI; /* sin of searched geodetic latitude */
var SDPHI; /* end-criterium: addition-theorem of sin(Latitude(iter)-Latitude(iter-1)) */
var iter; /* # of continous iteration, max. 30 is always enough (s.a.) */
var X = p.x;
var Y = p.y;
var Z = p.z ? p.z : 0.0; //Z value not always supplied
var Longitude;
var Latitude;
var Height;
P = Math.sqrt(X * X + Y * Y);
RR = Math.sqrt(X * X + Y * Y + Z * Z);
/* special cases for latitude and longitude */
if (P / a < genau) {
/* special case, if P=0. (X=0., Y=0.) */
Longitude = 0.0;
/* if (X,Y,Z)=(0.,0.,0.) then Height becomes semi-minor axis
* of ellipsoid (=center of mass), Latitude becomes PI/2 */
if (RR / a < genau) {
Latitude = HALF_PI;
Height = -b;
return {
x: p.x,
y: p.y,
z: p.z
};
}
} else {
/* ellipsoidal (geodetic) longitude
* interval: -PI < Longitude <= +PI */
Longitude = Math.atan2(Y, X);
}
/* --------------------------------------------------------------
* Following iterative algorithm was developped by
* "Institut for Erdmessung", University of Hannover, July 1988.
* Internet: www.ife.uni-hannover.de
* Iterative computation of CPHI,SPHI and Height.
* Iteration of CPHI and SPHI to 10**-12 radian resp.
* 2*10**-7 arcsec.
* --------------------------------------------------------------
*/
CT = Z / RR;
ST = P / RR;
RX = 1.0 / Math.sqrt(1.0 - es * (2.0 - es) * ST * ST);
CPHI0 = ST * (1.0 - es) * RX;
SPHI0 = CT * RX;
iter = 0;
/* loop to find sin(Latitude) resp. Latitude
* until |sin(Latitude(iter)-Latitude(iter-1))| < genau */
do {
iter++;
RN = a / Math.sqrt(1.0 - es * SPHI0 * SPHI0);
/* ellipsoidal (geodetic) height */
Height = P * CPHI0 + Z * SPHI0 - RN * (1.0 - es * SPHI0 * SPHI0);
RK = es * RN / (RN + Height);
RX = 1.0 / Math.sqrt(1.0 - RK * (2.0 - RK) * ST * ST);
CPHI = ST * (1.0 - RK) * RX;
SPHI = CT * RX;
SDPHI = SPHI * CPHI0 - CPHI * SPHI0;
CPHI0 = CPHI;
SPHI0 = SPHI;
}
while (SDPHI * SDPHI > genau2 && iter < maxiter);
/* ellipsoidal (geodetic) latitude */
Latitude = Math.atan(SPHI / Math.abs(CPHI));
return {
x: Longitude,
y: Latitude,
z: Height
};
} // cs_geocentric_to_geodetic()
/****************************************************************/
// pj_geocentic_to_wgs84( p )
// p = point to transform in geocentric coordinates (x,y,z)
/** point object, nothing fancy, just allows values to be
passed back and forth by reference rather than by value.
Other point classes may be used as long as they have
x and y properties, which will get modified in the transform method.
*/
function geocentricToWgs84(p, datum_type, datum_params) {
if (datum_type === PJD_3PARAM) {
// if( x[io] === HUGE_VAL )
// continue;
return {
x: p.x + datum_params[0],
y: p.y + datum_params[1],
z: p.z + datum_params[2],
};
} else if (datum_type === PJD_7PARAM) {
var Dx_BF = datum_params[0];
var Dy_BF = datum_params[1];
var Dz_BF = datum_params[2];
var Rx_BF = datum_params[3];
var Ry_BF = datum_params[4];
var Rz_BF = datum_params[5];
var M_BF = datum_params[6];
// if( x[io] === HUGE_VAL )
// continue;
return {
x: M_BF * (p.x - Rz_BF * p.y + Ry_BF * p.z) + Dx_BF,
y: M_BF * (Rz_BF * p.x + p.y - Rx_BF * p.z) + Dy_BF,
z: M_BF * (-Ry_BF * p.x + Rx_BF * p.y + p.z) + Dz_BF
};
}
} // cs_geocentric_to_wgs84
/****************************************************************/
// pj_geocentic_from_wgs84()
// coordinate system definition,
// point to transform in geocentric coordinates (x,y,z)
function geocentricFromWgs84(p, datum_type, datum_params) {
if (datum_type === PJD_3PARAM) {
//if( x[io] === HUGE_VAL )
// continue;
return {
x: p.x - datum_params[0],
y: p.y - datum_params[1],
z: p.z - datum_params[2],
};
} else if (datum_type === PJD_7PARAM) {
var Dx_BF = datum_params[0];
var Dy_BF = datum_params[1];
var Dz_BF = datum_params[2];
var Rx_BF = datum_params[3];
var Ry_BF = datum_params[4];
var Rz_BF = datum_params[5];
var M_BF = datum_params[6];
var x_tmp = (p.x - Dx_BF) / M_BF;
var y_tmp = (p.y - Dy_BF) / M_BF;
var z_tmp = (p.z - Dz_BF) / M_BF;
//if( x[io] === HUGE_VAL )
// continue;
return {
x: x_tmp + Rz_BF * y_tmp - Ry_BF * z_tmp,
y: -Rz_BF * x_tmp + y_tmp + Rx_BF * z_tmp,
z: Ry_BF * x_tmp - Rx_BF * y_tmp + z_tmp
};
} //cs_geocentric_from_wgs84()
}
function checkParams(type) {
return (type === PJD_3PARAM || type === PJD_7PARAM);
}
var datum_transform = function(source, dest, point) {
// Short cut if the datums are identical.
if (compareDatums(source, dest)) {
return point; // in this case, zero is sucess,
// whereas cs_compare_datums returns 1 to indicate TRUE
// confusing, should fix this
}
// Explicitly skip datum transform by setting 'datum=none' as parameter for either source or dest
if (source.datum_type === PJD_NODATUM || dest.datum_type === PJD_NODATUM) {
return point;
}
// If this datum requires grid shifts, then apply it to geodetic coordinates.
// Do we need to go through geocentric coordinates?
if (source.es === dest.es && source.a === dest.a && !checkParams(source.datum_type) && !checkParams(dest.datum_type)) {
return point;
}
// Convert to geocentric coordinates.
point = geodeticToGeocentric(point, source.es, source.a);
// Convert between datums
if (checkParams(source.datum_type)) {
point = geocentricToWgs84(point, source.datum_type, source.datum_params);
}
if (checkParams(dest.datum_type)) {
point = geocentricFromWgs84(point, dest.datum_type, dest.datum_params);
}
return geocentricToGeodetic(point, dest.es, dest.a, dest.b);
};
var adjust_axis = function(crs, denorm, point) {
var xin = point.x,
yin = point.y,
zin = point.z || 0.0;
var v, t, i;
var out = {};
for (i = 0; i < 3; i++) {
if (denorm && i === 2 && point.z === undefined) {
continue;
}
if (i === 0) {
v = xin;
t = 'x';
}
else if (i === 1) {
v = yin;
t = 'y';
}
else {
v = zin;
t = 'z';
}
switch (crs.axis[i]) {
case 'e':
out[t] = v;
break;
case 'w':
out[t] = -v;
break;
case 'n':
out[t] = v;
break;
case 's':
out[t] = -v;
break;
case 'u':
if (point[t] !== undefined) {
out.z = v;
}
break;
case 'd':
if (point[t] !== undefined) {
out.z = -v;
}
break;
default:
//console.log("ERROR: unknow axis ("+crs.axis[i]+") - check definition of "+crs.projName);
return null;
}
}
return out;
};
var toPoint = function (array){
var out = {
x: array[0],
y: array[1]
};
if (array.length>2) {
out.z = array[2];
}
if (array.length>3) {
out.m = array[3];
}
return out;
};
var checkSanity = function (point) {
checkCoord(point.x);
checkCoord(point.y);
};
function checkCoord(num) {
if (typeof Number.isFinite === 'function') {
if (Number.isFinite(num)) {
return;
}
throw new TypeError('coordinates must be finite numbers');
}
if (typeof num !== 'number' || num !== num || !isFinite(num)) {
throw new TypeError('coordinates must be finite numbers');
}
}
function checkNotWGS(source, dest) {
return ((source.datum.datum_type === PJD_3PARAM || source.datum.datum_type === PJD_7PARAM) && dest.datumCode !== 'WGS84') || ((dest.datum.datum_type === PJD_3PARAM || dest.datum.datum_type === PJD_7PARAM) && source.datumCode !== 'WGS84');
}
function transform(source, dest, point) {
var wgs84;
if (Array.isArray(point)) {
point = toPoint(point);
}
checkSanity(point);
// Workaround for datum shifts towgs84, if either source or destination projection is not wgs84
if (source.datum && dest.datum && checkNotWGS(source, dest)) {
wgs84 = new Projection$1('WGS84');
point = transform(source, wgs84, point);
source = wgs84;
}
// DGR, 2010/11/12
if (source.axis !== 'enu') {
point = adjust_axis(source, false, point);
}
// Transform source points to long/lat, if they aren't already.
if (source.projName === 'longlat') {
point = {
x: point.x * D2R,
y: point.y * D2R
};
}
else {
if (source.to_meter) {
point = {
x: point.x * source.to_meter,
y: point.y * source.to_meter
};
}
point = source.inverse(point); // Convert Cartesian to longlat
}
// Adjust for the prime meridian if necessary
if (source.from_greenwich) {
point.x += source.from_greenwich;
}
// Convert datums if needed, and if possible.
point = datum_transform(source.datum, dest.datum, point);
// Adjust for the prime meridian if necessary
if (dest.from_greenwich) {
point = {
x: point.x - dest.from_greenwich,
y: point.y
};
}
if (dest.projName === 'longlat') {
// convert radians to decimal degrees
point = {
x: point.x * R2D,
y: point.y * R2D
};
} else { // else project
point = dest.forward(point);
if (dest.to_meter) {
point = {
x: point.x / dest.to_meter,
y: point.y / dest.to_meter
};
}
}
// DGR, 2010/11/12
if (dest.axis !== 'enu') {
return adjust_axis(dest, true, point);
}
return point;
}
var wgs84 = Projection$1('WGS84');
function transformer(from, to, coords) {
var transformedArray, out, keys;
if (Array.isArray(coords)) {
transformedArray = transform(from, to, coords);
if (coords.length === 3) {
return [transformedArray.x, transformedArray.y, transformedArray.z];
}
else {
return [transformedArray.x, transformedArray.y];
}
}
else {
out = transform(from, to, coords);
keys = Object.keys(coords);
if (keys.length === 2) {
return out;
}
keys.forEach(function (key) {
if (key === 'x' || key === 'y') {
return;
}
out[key] = coords[key];
});
return out;
}
}
function checkProj(item) {
if (item instanceof Projection$1) {
return item;
}
if (item.oProj) {
return item.oProj;
}
return Projection$1(item);
}
function proj4$1(fromProj, toProj, coord) {
fromProj = checkProj(fromProj);
var single = false;
var obj;
if (typeof toProj === 'undefined') {
toProj = fromProj;
fromProj = wgs84;
single = true;
}
else if (typeof toProj.x !== 'undefined' || Array.isArray(toProj)) {
coord = toProj;
toProj = fromProj;
fromProj = wgs84;
single = true;
}
toProj = checkProj(toProj);
if (coord) {
return transformer(fromProj, toProj, coord);
}
else {
obj = {
forward: function(coords) {
return transformer(fromProj, toProj, coords);
},
inverse: function(coords) {
return transformer(toProj, fromProj, coords);
}
};
if (single) {
obj.oProj = toProj;
}
return obj;
}
}
/**
* UTM zones are grouped, and assigned to one of a group of 6
* sets.
*
* {int} @private
*/
var NUM_100K_SETS = 6;
/**
* The column letters (for easting) of the lower left value, per
* set.
*
* {string} @private
*/
var SET_ORIGIN_COLUMN_LETTERS = 'AJSAJS';
/**
* The row letters (for northing) of the lower left value, per
* set.
*
* {string} @private
*/
var SET_ORIGIN_ROW_LETTERS = 'AFAFAF';
var A = 65; // A
var I = 73; // I
var O = 79; // O
var V = 86; // V
var Z = 90; // Z
var mgrs = {
forward: forward$1,
inverse: inverse$1,
toPoint: toPoint$1
};
/**
* Conversion of lat/lon to MGRS.
*
* @param {object} ll Object literal with lat and lon properties on a
* WGS84 ellipsoid.
* @param {int} accuracy Accuracy in digits (5 for 1 m, 4 for 10 m, 3 for
* 100 m, 2 for 1000 m or 1 for 10000 m). Optional, default is 5.
* @return {string} the MGRS string for the given location and accuracy.
*/
function forward$1(ll, accuracy) {
accuracy = accuracy || 5; // default accuracy 1m
return encode(LLtoUTM({
lat: ll[1],
lon: ll[0]
}), accuracy);
}
/**
* Conversion of MGRS to lat/lon.
*
* @param {string} mgrs MGRS string.
* @return {array} An array with left (longitude), bottom (latitude), right
* (longitude) and top (latitude) values in WGS84, representing the
* bounding box for the provided MGRS reference.
*/
function inverse$1(mgrs) {
var bbox = UTMtoLL(decode(mgrs.toUpperCase()));
if (bbox.lat && bbox.lon) {
return [bbox.lon, bbox.lat, bbox.lon, bbox.lat];
}
return [bbox.left, bbox.bottom, bbox.right, bbox.top];
}
function toPoint$1(mgrs) {
var bbox = UTMtoLL(decode(mgrs.toUpperCase()));
if (bbox.lat && bbox.lon) {
return [bbox.lon, bbox.lat];
}
return [(bbox.left + bbox.right) / 2, (bbox.top + bbox.bottom) / 2];
}
/**
* Conversion from degrees to radians.
*
* @private
* @param {number} deg the angle in degrees.
* @return {number} the angle in radians.
*/
function degToRad(deg) {
return (deg * (Math.PI / 180.0));
}
/**
* Conversion from radians to degrees.
*
* @private
* @param {number} rad the angle in radians.
* @return {number} the angle in degrees.
*/
function radToDeg(rad) {
return (180.0 * (rad / Math.PI));
}
/**
* Converts a set of Longitude and Latitude co-ordinates to UTM
* using the WGS84 ellipsoid.
*
* @private
* @param {object} ll Object literal with lat and lon properties
* representing the WGS84 coordinate to be converted.
* @return {object} Object literal containing the UTM value with easting,
* northing, zoneNumber and zoneLetter properties, and an optional
* accuracy property in digits. Returns null if the conversion failed.
*/
function LLtoUTM(ll) {
var Lat = ll.lat;
var Long = ll.lon;
var a = 6378137.0; //ellip.radius;
var eccSquared = 0.00669438; //ellip.eccsq;
var k0 = 0.9996;
var LongOrigin;
var eccPrimeSquared;
var N, T, C, A, M;
var LatRad = degToRad(Lat);
var LongRad = degToRad(Long);
var LongOriginRad;
var ZoneNumber;
// (int)
ZoneNumber = Math.floor((Long + 180) / 6) + 1;
//Make sure the longitude 180.00 is in Zone 60
if (Long === 180) {
ZoneNumber = 60;
}
// Special zone for Norway
if (Lat >= 56.0 && Lat < 64.0 && Long >= 3.0 && Long < 12.0) {
ZoneNumber = 32;
}
// Special zones for Svalbard
if (Lat >= 72.0 && Lat < 84.0) {
if (Long >= 0.0 && Long < 9.0) {
ZoneNumber = 31;
}
else if (Long >= 9.0 && Long < 21.0) {
ZoneNumber = 33;
}
else if (Long >= 21.0 && Long < 33.0) {
ZoneNumber = 35;
}
else if (Long >= 33.0 && Long < 42.0) {
ZoneNumber = 37;
}
}
LongOrigin = (ZoneNumber - 1) * 6 - 180 + 3; //+3 puts origin
// in middle of
// zone
LongOriginRad = degToRad(LongOrigin);
eccPrimeSquared = (eccSquared) / (1 - eccSquared);
N = a / Math.sqrt(1 - eccSquared * Math.sin(LatRad) * Math.sin(LatRad));
T = Math.tan(LatRad) * Math.tan(LatRad);
C = eccPrimeSquared * Math.cos(LatRad) * Math.cos(LatRad);
A = Math.cos(LatRad) * (LongRad - LongOriginRad);
M = a * ((1 - eccSquared / 4 - 3 * eccSquared * eccSquared / 64 - 5 * eccSquared * eccSquared * eccSquared / 256) * LatRad - (3 * eccSquared / 8 + 3 * eccSquared * eccSquared / 32 + 45 * eccSquared * eccSquared * eccSquared / 1024) * Math.sin(2 * LatRad) + (15 * eccSquared * eccSquared / 256 + 45 * eccSquared * eccSquared * eccSquared / 1024) * Math.sin(4 * LatRad) - (35 * eccSquared * eccSquared * eccSquared / 3072) * Math.sin(6 * LatRad));
var UTMEasting = (k0 * N * (A + (1 - T + C) * A * A * A / 6.0 + (5 - 18 * T + T * T + 72 * C - 58 * eccPrimeSquared) * A * A * A * A * A / 120.0) + 500000.0);
var UTMNorthing = (k0 * (M + N * Math.tan(LatRad) * (A * A / 2 + (5 - T + 9 * C + 4 * C * C) * A * A * A * A / 24.0 + (61 - 58 * T + T * T + 600 * C - 330 * eccPrimeSquared) * A * A * A * A * A * A / 720.0)));
if (Lat < 0.0) {
UTMNorthing += 10000000.0; //10000000 meter offset for
// southern hemisphere
}
return {
northing: Math.round(UTMNorthing),
easting: Math.round(UTMEasting),
zoneNumber: ZoneNumber,
zoneLetter: getLetterDesignator(Lat)
};
}
/**
* Converts UTM coords to lat/long, using the WGS84 ellipsoid. This is a convenience
* class where the Zone can be specified as a single string eg."60N" which
* is then broken down into the ZoneNumber and ZoneLetter.
*
* @private
* @param {object} utm An object literal with northing, easting, zoneNumber
* and zoneLetter properties. If an optional accuracy property is
* provided (in meters), a bounding box will be returned instead of
* latitude and longitude.
* @return {object} An object literal containing either lat and lon values
* (if no accuracy was provided), or top, right, bottom and left values
* for the bounding box calculated according to the provided accuracy.
* Returns null if the conversion failed.
*/
function UTMtoLL(utm) {
var UTMNorthing = utm.northing;
var UTMEasting = utm.easting;
var zoneLetter = utm.zoneLetter;
var zoneNumber = utm.zoneNumber;
// check the ZoneNummber is valid
if (zoneNumber < 0 || zoneNumber > 60) {
return null;
}
var k0 = 0.9996;
var a = 6378137.0; //ellip.radius;
var eccSquared = 0.00669438; //ellip.eccsq;
var eccPrimeSquared;
var e1 = (1 - Math.sqrt(1 - eccSquared)) / (1 + Math.sqrt(1 - eccSquared));
var N1, T1, C1, R1, D, M;
var LongOrigin;
var mu, phi1Rad;
// remove 500,000 meter offset for longitude
var x = UTMEasting - 500000.0;
var y = UTMNorthing;
// We must know somehow if we are in the Northern or Southern
// hemisphere, this is the only time we use the letter So even
// if the Zone letter isn't exactly correct it should indicate
// the hemisphere correctly
if (zoneLetter < 'N') {
y -= 10000000.0; // remove 10,000,000 meter offset used
// for southern hemisphere
}
// There are 60 zones with zone 1 being at West -180 to -174
LongOrigin = (zoneNumber - 1) * 6 - 180 + 3; // +3 puts origin
// in middle of
// zone
eccPrimeSquared = (eccSquared) / (1 - eccSquared);
M = y / k0;
mu = M / (a * (1 - eccSquared / 4 - 3 * eccSquared * eccSquared / 64 - 5 * eccSquared * eccSquared * eccSquared / 256));
phi1Rad = mu + (3 * e1 / 2 - 27 * e1 * e1 * e1 / 32) * Math.sin(2 * mu) + (21 * e1 * e1 / 16 - 55 * e1 * e1 * e1 * e1 / 32) * Math.sin(4 * mu) + (151 * e1 * e1 * e1 / 96) * Math.sin(6 * mu);
// double phi1 = ProjMath.radToDeg(phi1Rad);
N1 = a / Math.sqrt(1 - eccSquared * Math.sin(phi1Rad) * Math.sin(phi1Rad));
T1 = Math.tan(phi1Rad) * Math.tan(phi1Rad);
C1 = eccPrimeSquared * Math.cos(phi1Rad) * Math.cos(phi1Rad);
R1 = a * (1 - eccSquared) / Math.pow(1 - eccSquared * Math.sin(phi1Rad) * Math.sin(phi1Rad), 1.5);
D = x / (N1 * k0);
var lat = phi1Rad - (N1 * Math.tan(phi1Rad) / R1) * (D * D / 2 - (5 + 3 * T1 + 10 * C1 - 4 * C1 * C1 - 9 * eccPrimeSquared) * D * D * D * D / 24 + (61 + 90 * T1 + 298 * C1 + 45 * T1 * T1 - 252 * eccPrimeSquared - 3 * C1 * C1) * D * D * D * D * D * D / 720);
lat = radToDeg(lat);
var lon = (D - (1 + 2 * T1 + C1) * D * D * D / 6 + (5 - 2 * C1 + 28 * T1 - 3 * C1 * C1 + 8 * eccPrimeSquared + 24 * T1 * T1) * D * D * D * D * D / 120) / Math.cos(phi1Rad);
lon = LongOrigin + radToDeg(lon);
var result;
if (utm.accuracy) {
var topRight = UTMtoLL({
northing: utm.northing + utm.accuracy,
easting: utm.easting + utm.accuracy,
zoneLetter: utm.zoneLetter,
zoneNumber: utm.zoneNumber
});
result = {
top: topRight.lat,
right: topRight.lon,
bottom: lat,
left: lon
};
}
else {
result = {
lat: lat,
lon: lon
};
}
return result;
}
/**
* Calculates the MGRS letter designator for the given latitude.
*
* @private
* @param {number} lat The latitude in WGS84 to get the letter designator
* for.
* @return {char} The letter designator.
*/
function getLetterDesignator(lat) {
//This is here as an error flag to show that the Latitude is
//outside MGRS limits
var LetterDesignator = 'Z';
if ((84 >= lat) && (lat >= 72)) {
LetterDesignator = 'X';
}
else if ((72 > lat) && (lat >= 64)) {
LetterDesignator = 'W';
}
else if ((64 > lat) && (lat >= 56)) {
LetterDesignator = 'V';
}
else if ((56 > lat) && (lat >= 48)) {
LetterDesignator = 'U';
}
else if ((48 > lat) && (lat >= 40)) {
LetterDesignator = 'T';
}
else if ((40 > lat) && (lat >= 32)) {
LetterDesignator = 'S';
}
else if ((32 > lat) && (lat >= 24)) {
LetterDesignator = 'R';
}
else if ((24 > lat) && (lat >= 16)) {
LetterDesignator = 'Q';
}
else if ((16 > lat) && (lat >= 8)) {
LetterDesignator = 'P';
}
else if ((8 > lat) && (lat >= 0)) {
LetterDesignator = 'N';
}
else if ((0 > lat) && (lat >= -8)) {
LetterDesignator = 'M';
}
else if ((-8 > lat) && (lat >= -16)) {
LetterDesignator = 'L';
}
else if ((-16 > lat) && (lat >= -24)) {
LetterDesignator = 'K';
}
else if ((-24 > lat) && (lat >= -32)) {
LetterDesignator = 'J';
}
else if ((-32 > lat) && (lat >= -40)) {
LetterDesignator = 'H';
}
else if ((-40 > lat) && (lat >= -48)) {
LetterDesignator = 'G';
}
else if ((-48 > lat) && (lat >= -56)) {
LetterDesignator = 'F';
}
else if ((-56 > lat) && (lat >= -64)) {
LetterDesignator = 'E';
}
else if ((-64 > lat) && (lat >= -72)) {
LetterDesignator = 'D';
}
else if ((-72 > lat) && (lat >= -80)) {
LetterDesignator = 'C';
}
return LetterDesignator;
}
/**
* Encodes a UTM location as MGRS string.
*
* @private
* @param {object} utm An object literal with easting, northing,
* zoneLetter, zoneNumber
* @param {number} accuracy Accuracy in digits (1-5).
* @return {string} MGRS string for the given UTM location.
*/
function encode(utm, accuracy) {
// prepend with leading zeroes
var seasting = "00000" + utm.easting,
snorthing = "00000" + utm.northing;
return utm.zoneNumber + utm.zoneLetter + get100kID(utm.easting, utm.northing, utm.zoneNumber) + seasting.substr(seasting.length - 5, accuracy) + snorthing.substr(snorthing.length - 5, accuracy);
}
/**
* Get the two letter 100k designator for a given UTM easting,
* northing and zone number value.
*
* @private
* @param {number} easting
* @param {number} northing
* @param {number} zoneNumber
* @return the two letter 100k designator for the given UTM location.
*/
function get100kID(easting, northing, zoneNumber) {
var setParm = get100kSetForZone(zoneNumber);
var setColumn = Math.floor(easting / 100000);
var setRow = Math.floor(northing / 100000) % 20;
return getLetter100kID(setColumn, setRow, setParm);
}
/**
* Given a UTM zone number, figure out the MGRS 100K set it is in.
*
* @private
* @param {number} i An UTM zone number.
* @return {number} the 100k set the UTM zone is in.
*/
function get100kSetForZone(i) {
var setParm = i % NUM_100K_SETS;
if (setParm === 0) {
setParm = NUM_100K_SETS;
}
return setParm;
}
/**
* Get the two-letter MGRS 100k designator given information
* translated from the UTM northing, easting and zone number.
*
* @private
* @param {number} column the column index as it relates to the MGRS
* 100k set spreadsheet, created from the UTM easting.
* Values are 1-8.
* @param {number} row the row index as it relates to the MGRS 100k set
* spreadsheet, created from the UTM northing value. Values
* are from 0-19.
* @param {number} parm the set block, as it relates to the MGRS 100k set
* spreadsheet, created from the UTM zone. Values are from
* 1-60.
* @return two letter MGRS 100k code.
*/
function getLetter100kID(column, row, parm) {
// colOrigin and rowOrigin are the letters at the origin of the set
var index = parm - 1;
var colOrigin = SET_ORIGIN_COLUMN_LETTERS.charCodeAt(index);
var rowOrigin = SET_ORIGIN_ROW_LETTERS.charCodeAt(index);
// colInt and rowInt are the letters to build to return
var colInt = colOrigin + column - 1;
var rowInt = rowOrigin + row;
var rollover = false;
if (colInt > Z) {
colInt = colInt - Z + A - 1;
rollover = true;
}
if (colInt === I || (colOrigin < I && colInt > I) || ((colInt > I || colOrigin < I) && rollover)) {
colInt++;
}
if (colInt === O || (colOrigin < O && colInt > O) || ((colInt > O || colOrigin < O) && rollover)) {
colInt++;
if (colInt === I) {
colInt++;
}
}
if (colInt > Z) {
colInt = colInt - Z + A - 1;
}
if (rowInt > V) {
rowInt = rowInt - V + A - 1;
rollover = true;
}
else {
rollover = false;
}
if (((rowInt === I) || ((rowOrigin < I) && (rowInt > I))) || (((rowInt > I) || (rowOrigin < I)) && rollover)) {
rowInt++;
}
if (((rowInt === O) || ((rowOrigin < O) && (rowInt > O))) || (((rowInt > O) || (rowOrigin < O)) && rollover)) {
rowInt++;
if (rowInt === I) {
rowInt++;
}
}
if (rowInt > V) {
rowInt = rowInt - V + A - 1;
}
var twoLetter = String.fromCharCode(colInt) + String.fromCharCode(rowInt);
return twoLetter;
}
/**
* Decode the UTM parameters from a MGRS string.
*
* @private
* @param {string} mgrsString an UPPERCASE coordinate string is expected.
* @return {object} An object literal with easting, northing, zoneLetter,
* zoneNumber and accuracy (in meters) properties.
*/
function decode(mgrsString) {
if (mgrsString && mgrsString.length === 0) {
throw ("MGRSPoint coverting from nothing");
}
var length = mgrsString.length;
var hunK = null;
var sb = "";
var testChar;
var i = 0;
// get Zone number
while (!(/[A-Z]/).test(testChar = mgrsString.charAt(i))) {
if (i >= 2) {
throw ("MGRSPoint bad conversion from: " + mgrsString);
}
sb += testChar;
i++;
}
var zoneNumber = parseInt(sb, 10);
if (i === 0 || i + 3 > length) {
// A good MGRS string has to be 4-5 digits long,
// ##AAA/#AAA at least.
throw ("MGRSPoint bad conversion from: " + mgrsString);
}
var zoneLetter = mgrsString.charAt(i++);
// Should we check the zone letter here? Why not.
if (zoneLetter <= 'A' || zoneLetter === 'B' || zoneLetter === 'Y' || zoneLetter >= 'Z' || zoneLetter === 'I' || zoneLetter === 'O') {
throw ("MGRSPoint zone letter " + zoneLetter + " not handled: " + mgrsString);
}
hunK = mgrsString.substring(i, i += 2);
var set = get100kSetForZone(zoneNumber);
var east100k = getEastingFromChar(hunK.charAt(0), set);
var north100k = getNorthingFromChar(hunK.charAt(1), set);
// We have a bug where the northing may be 2000000 too low.
// How
// do we know when to roll over?
while (north100k < getMinNorthing(zoneLetter)) {
north100k += 2000000;
}
// calculate the char index for easting/northing separator
var remainder = length - i;
if (remainder % 2 !== 0) {
throw ("MGRSPoint has to have an even number \nof digits after the zone letter and two 100km letters - front \nhalf for easting meters, second half for \nnorthing meters" + mgrsString);
}
var sep = remainder / 2;
var sepEasting = 0.0;
var sepNorthing = 0.0;
var accuracyBonus, sepEastingString, sepNorthingString, easting, northing;
if (sep > 0) {
accuracyBonus = 100000.0 / Math.pow(10, sep);
sepEastingString = mgrsString.substring(i, i + sep);
sepEasting = parseFloat(sepEastingString) * accuracyBonus;
sepNorthingString = mgrsString.substring(i + sep);
sepNorthing = parseFloat(sepNorthingString) * accuracyBonus;
}
easting = sepEasting + east100k;
northing = sepNorthing + north100k;
return {
easting: easting,
northing: northing,
zoneLetter: zoneLetter,
zoneNumber: zoneNumber,
accuracy: accuracyBonus
};
}
/**
* Given the first letter from a two-letter MGRS 100k zone, and given the
* MGRS table set for the zone number, figure out the easting value that
* should be added to the other, secondary easting value.
*
* @private
* @param {char} e The first letter from a two-letter MGRS 100´k zone.
* @param {number} set The MGRS table set for the zone number.
* @return {number} The easting value for the given letter and set.
*/
function getEastingFromChar(e, set) {
// colOrigin is the letter at the origin of the set for the
// column
var curCol = SET_ORIGIN_COLUMN_LETTERS.charCodeAt(set - 1);
var eastingValue = 100000.0;
var rewindMarker = false;
while (curCol !== e.charCodeAt(0)) {
curCol++;
if (curCol === I) {
curCol++;
}
if (curCol === O) {
curCol++;
}
if (curCol > Z) {
if (rewindMarker) {
throw ("Bad character: " + e);
}
curCol = A;
rewindMarker = true;
}
eastingValue += 100000.0;
}
return eastingValue;
}
/**
* Given the second letter from a two-letter MGRS 100k zone, and given the
* MGRS table set for the zone number, figure out the northing value that
* should be added to the other, secondary northing value. You have to
* remember that Northings are determined from the equator, and the vertical
* cycle of letters mean a 2000000 additional northing meters. This happens
* approx. every 18 degrees of latitude. This method does *NOT* count any
* additional northings. You have to figure out how many 2000000 meters need
* to be added for the zone letter of the MGRS coordinate.
*
* @private
* @param {char} n Second letter of the MGRS 100k zone
* @param {number} set The MGRS table set number, which is dependent on the
* UTM zone number.
* @return {number} The northing value for the given letter and set.
*/
function getNorthingFromChar(n, set) {
if (n > 'V') {
throw ("MGRSPoint given invalid Northing " + n);
}
// rowOrigin is the letter at the origin of the set for the
// column
var curRow = SET_ORIGIN_ROW_LETTERS.charCodeAt(set - 1);
var northingValue = 0.0;
var rewindMarker = false;
while (curRow !== n.charCodeAt(0)) {
curRow++;
if (curRow === I) {
curRow++;
}
if (curRow === O) {
curRow++;
}
// fixing a bug making whole application hang in this loop
// when 'n' is a wrong character
if (curRow > V) {
if (rewindMarker) { // making sure that this loop ends
throw ("Bad character: " + n);
}
curRow = A;
rewindMarker = true;
}
northingValue += 100000.0;
}
return northingValue;
}
/**
* The function getMinNorthing returns the minimum northing value of a MGRS
* zone.
*
* Ported from Geotrans' c Lattitude_Band_Value structure table.
*
* @private
* @param {char} zoneLetter The MGRS zone to get the min northing for.
* @return {number}
*/
function getMinNorthing(zoneLetter) {
var northing;
switch (zoneLetter) {
case 'C':
northing = 1100000.0;
break;
case 'D':
northing = 2000000.0;
break;
case 'E':
northing = 2800000.0;
break;
case 'F':
northing = 3700000.0;
break;
case 'G':
northing = 4600000.0;
break;
case 'H':
northing = 5500000.0;
break;
case 'J':
northing = 6400000.0;
break;
case 'K':
northing = 7300000.0;
break;
case 'L':
northing = 8200000.0;
break;
case 'M':
northing = 9100000.0;
break;
case 'N':
northing = 0.0;
break;
case 'P':
northing = 800000.0;
break;
case 'Q':
northing = 1700000.0;
break;
case 'R':
northing = 2600000.0;
break;
case 'S':
northing = 3500000.0;
break;
case 'T':
northing = 4400000.0;
break;
case 'U':
northing = 5300000.0;
break;
case 'V':
northing = 6200000.0;
break;
case 'W':
northing = 7000000.0;
break;
case 'X':
northing = 7900000.0;
break;
default:
northing = -1.0;
}
if (northing >= 0.0) {
return northing;
}
else {
throw ("Invalid zone letter: " + zoneLetter);
}
}
function Point(x, y, z) {
if (!(this instanceof Point)) {
return new Point(x, y, z);
}
if (Array.isArray(x)) {
this.x = x[0];
this.y = x[1];
this.z = x[2] || 0.0;
} else if(typeof x === 'object') {
this.x = x.x;
this.y = x.y;
this.z = x.z || 0.0;
} else if (typeof x === 'string' && typeof y === 'undefined') {
var coords = x.split(',');
this.x = parseFloat(coords[0], 10);
this.y = parseFloat(coords[1], 10);
this.z = parseFloat(coords[2], 10) || 0.0;
} else {
this.x = x;
this.y = y;
this.z = z || 0.0;
}
console.warn('proj4.Point will be removed in version 3, use proj4.toPoint');
}
Point.fromMGRS = function(mgrsStr) {
return new Point(toPoint$1(mgrsStr));
};
Point.prototype.toMGRS = function(accuracy) {
return forward$1([this.x, this.y], accuracy);
};
var version = "2.4.4";
var C00 = 1;
var C02 = 0.25;
var C04 = 0.046875;
var C06 = 0.01953125;
var C08 = 0.01068115234375;
var C22 = 0.75;
var C44 = 0.46875;
var C46 = 0.01302083333333333333;
var C48 = 0.00712076822916666666;
var C66 = 0.36458333333333333333;
var C68 = 0.00569661458333333333;
var C88 = 0.3076171875;
var pj_enfn = function(es) {
var en = [];
en[0] = C00 - es * (C02 + es * (C04 + es * (C06 + es * C08)));
en[1] = es * (C22 - es * (C04 + es * (C06 + es * C08)));
var t = es * es;
en[2] = t * (C44 - es * (C46 + es * C48));
t *= es;
en[3] = t * (C66 - es * C68);
en[4] = t * es * C88;
return en;
};
var pj_mlfn = function(phi, sphi, cphi, en) {
cphi *= sphi;
sphi *= sphi;
return (en[0] * phi - cphi * (en[1] + sphi * (en[2] + sphi * (en[3] + sphi * en[4]))));
};
var MAX_ITER = 20;
var pj_inv_mlfn = function(arg, es, en) {
var k = 1 / (1 - es);
var phi = arg;
for (var i = MAX_ITER; i; --i) { /* rarely goes over 2 iterations */
var s = Math.sin(phi);
var t = 1 - es * s * s;
//t = this.pj_mlfn(phi, s, Math.cos(phi), en) - arg;
//phi -= t * (t * Math.sqrt(t)) * k;
t = (pj_mlfn(phi, s, Math.cos(phi), en) - arg) * (t * Math.sqrt(t)) * k;
phi -= t;
if (Math.abs(t) < EPSLN) {
return phi;
}
}
//..reportError("cass:pj_inv_mlfn: Convergence error");
return phi;
};
// Heavily based on this tmerc projection implementation
// https://github.com/mbloch/mapshaper-proj/blob/master/src/projections/tmerc.js
function init$2() {
this.x0 = this.x0 !== undefined ? this.x0 : 0;
this.y0 = this.y0 !== undefined ? this.y0 : 0;
this.long0 = this.long0 !== undefined ? this.long0 : 0;
this.lat0 = this.lat0 !== undefined ? this.lat0 : 0;
if (this.es) {
this.en = pj_enfn(this.es);
this.ml0 = pj_mlfn(this.lat0, Math.sin(this.lat0), Math.cos(this.lat0), this.en);
}
}
/**
Transverse Mercator Forward - long/lat to x/y
long/lat in radians
*/
function forward$2(p) {
var lon = p.x;
var lat = p.y;
var delta_lon = adjust_lon(lon - this.long0);
var con;
var x, y;
var sin_phi = Math.sin(lat);
var cos_phi = Math.cos(lat);
if (!this.es) {
var b = cos_phi * Math.sin(delta_lon);
if ((Math.abs(Math.abs(b) - 1)) < EPSLN) {
return (93);
}
else {
x = 0.5 * this.a * this.k0 * Math.log((1 + b) / (1 - b)) + this.x0;
y = cos_phi * Math.cos(delta_lon) / Math.sqrt(1 - Math.pow(b, 2));
b = Math.abs(y);
if (b >= 1) {
if ((b - 1) > EPSLN) {
return (93);
}
else {
y = 0;
}
}
else {
y = Math.acos(y);
}
if (lat < 0) {
y = -y;
}
y = this.a * this.k0 * (y - this.lat0) + this.y0;
}
}
else {
var al = cos_phi * delta_lon;
var als = Math.pow(al, 2);
var c = this.ep2 * Math.pow(cos_phi, 2);
var cs = Math.pow(c, 2);
var tq = Math.abs(cos_phi) > EPSLN ? Math.tan(lat) : 0;
var t = Math.pow(tq, 2);
var ts = Math.pow(t, 2);
con = 1 - this.es * Math.pow(sin_phi, 2);
al = al / Math.sqrt(con);
var ml = pj_mlfn(lat, sin_phi, cos_phi, this.en);
x = this.a * (this.k0 * al * (1 +
als / 6 * (1 - t + c +
als / 20 * (5 - 18 * t + ts + 14 * c - 58 * t * c +
als / 42 * (61 + 179 * ts - ts * t - 479 * t))))) +
this.x0;
y = this.a * (this.k0 * (ml - this.ml0 +
sin_phi * delta_lon * al / 2 * (1 +
als / 12 * (5 - t + 9 * c + 4 * cs +
als / 30 * (61 + ts - 58 * t + 270 * c - 330 * t * c +
als / 56 * (1385 + 543 * ts - ts * t - 3111 * t)))))) +
this.y0;
}
p.x = x;
p.y = y;
return p;
}
/**
Transverse Mercator Inverse - x/y to long/lat
*/
function inverse$2(p) {
var con, phi;
var lat, lon;
var x = (p.x - this.x0) * (1 / this.a);
var y = (p.y - this.y0) * (1 / this.a);
if (!this.es) {
var f = Math.exp(x / this.k0);
var g = 0.5 * (f - 1 / f);
var temp = this.lat0 + y / this.k0;
var h = Math.cos(temp);
con = Math.sqrt((1 - Math.pow(h, 2)) / (1 + Math.pow(g, 2)));
lat = Math.asin(con);
if (y < 0) {
lat = -lat;
}
if ((g === 0) && (h === 0)) {
lon = 0;
}
else {
lon = adjust_lon(Math.atan2(g, h) + this.long0);
}
}
else { // ellipsoidal form
con = this.ml0 + y / this.k0;
phi = pj_inv_mlfn(con, this.es, this.en);
if (Math.abs(phi) < HALF_PI) {
var sin_phi = Math.sin(phi);
var cos_phi = Math.cos(phi);
var tan_phi = Math.abs(cos_phi) > EPSLN ? Math.tan(phi) : 0;
var c = this.ep2 * Math.pow(cos_phi, 2);
var cs = Math.pow(c, 2);
var t = Math.pow(tan_phi, 2);
var ts = Math.pow(t, 2);
con = 1 - this.es * Math.pow(sin_phi, 2);
var d = x * Math.sqrt(con) / this.k0;
var ds = Math.pow(d, 2);
con = con * tan_phi;
lat = phi - (con * ds / (1 - this.es)) * 0.5 * (1 -
ds / 12 * (5 + 3 * t - 9 * c * t + c - 4 * cs -
ds / 30 * (61 + 90 * t - 252 * c * t + 45 * ts + 46 * c -
ds / 56 * (1385 + 3633 * t + 4095 * ts + 1574 * ts * t))));
lon = adjust_lon(this.long0 + (d * (1 -
ds / 6 * (1 + 2 * t + c -
ds / 20 * (5 + 28 * t + 24 * ts + 8 * c * t + 6 * c -
ds / 42 * (61 + 662 * t + 1320 * ts + 720 * ts * t)))) / cos_phi));
}
else {
lat = HALF_PI * sign(y);
lon = 0;
}
}
p.x = lon;
p.y = lat;
return p;
}
var names$3 = ["Transverse_Mercator", "Transverse Mercator", "tmerc"];
var tmerc = {
init: init$2,
forward: forward$2,
inverse: inverse$2,
names: names$3
};
var sinh = function(x) {
var r = Math.exp(x);
r = (r - 1 / r) / 2;
return r;
};
var hypot = function(x, y) {
x = Math.abs(x);
y = Math.abs(y);
var a = Math.max(x, y);
var b = Math.min(x, y) / (a ? a : 1);
return a * Math.sqrt(1 + Math.pow(b, 2));
};
var log1py = function(x) {
var y = 1 + x;
var z = y - 1;
return z === 0 ? x : x * Math.log(y) / z;
};
var asinhy = function(x) {
var y = Math.abs(x);
y = log1py(y * (1 + y / (hypot(1, y) + 1)));
return x < 0 ? -y : y;
};
var gatg = function(pp, B) {
var cos_2B = 2 * Math.cos(2 * B);
var i = pp.length - 1;
var h1 = pp[i];
var h2 = 0;
var h;
while (--i >= 0) {
h = -h2 + cos_2B * h1 + pp[i];
h2 = h1;
h1 = h;
}
return (B + h * Math.sin(2 * B));
};
var clens = function(pp, arg_r) {
var r = 2 * Math.cos(arg_r);
var i = pp.length - 1;
var hr1 = pp[i];
var hr2 = 0;
var hr;
while (--i >= 0) {
hr = -hr2 + r * hr1 + pp[i];
hr2 = hr1;
hr1 = hr;
}
return Math.sin(arg_r) * hr;
};
var cosh = function(x) {
var r = Math.exp(x);
r = (r + 1 / r) / 2;
return r;
};
var clens_cmplx = function(pp, arg_r, arg_i) {
var sin_arg_r = Math.sin(arg_r);
var cos_arg_r = Math.cos(arg_r);
var sinh_arg_i = sinh(arg_i);
var cosh_arg_i = cosh(arg_i);
var r = 2 * cos_arg_r * cosh_arg_i;
var i = -2 * sin_arg_r * sinh_arg_i;
var j = pp.length - 1;
var hr = pp[j];
var hi1 = 0;
var hr1 = 0;
var hi = 0;
var hr2;
var hi2;
while (--j >= 0) {
hr2 = hr1;
hi2 = hi1;
hr1 = hr;
hi1 = hi;
hr = -hr2 + r * hr1 - i * hi1 + pp[j];
hi = -hi2 + i * hr1 + r * hi1;
}
r = sin_arg_r * cosh_arg_i;
i = cos_arg_r * sinh_arg_i;
return [r * hr - i * hi, r * hi + i * hr];
};
// Heavily based on this etmerc projection implementation
// https://github.com/mbloch/mapshaper-proj/blob/master/src/projections/etmerc.js
function init$3() {
if (this.es === undefined || this.es <= 0) {
throw new Error('incorrect elliptical usage');
}
this.x0 = this.x0 !== undefined ? this.x0 : 0;
this.y0 = this.y0 !== undefined ? this.y0 : 0;
this.long0 = this.long0 !== undefined ? this.long0 : 0;
this.lat0 = this.lat0 !== undefined ? this.lat0 : 0;
this.cgb = [];
this.cbg = [];
this.utg = [];
this.gtu = [];
var f = this.es / (1 + Math.sqrt(1 - this.es));
var n = f / (2 - f);
var np = n;
this.cgb[0] = n * (2 + n * (-2 / 3 + n * (-2 + n * (116 / 45 + n * (26 / 45 + n * (-2854 / 675 ))))));
this.cbg[0] = n * (-2 + n * ( 2 / 3 + n * ( 4 / 3 + n * (-82 / 45 + n * (32 / 45 + n * (4642 / 4725))))));
np = np * n;
this.cgb[1] = np * (7 / 3 + n * (-8 / 5 + n * (-227 / 45 + n * (2704 / 315 + n * (2323 / 945)))));
this.cbg[1] = np * (5 / 3 + n * (-16 / 15 + n * ( -13 / 9 + n * (904 / 315 + n * (-1522 / 945)))));
np = np * n;
this.cgb[2] = np * (56 / 15 + n * (-136 / 35 + n * (-1262 / 105 + n * (73814 / 2835))));
this.cbg[2] = np * (-26 / 15 + n * (34 / 21 + n * (8 / 5 + n * (-12686 / 2835))));
np = np * n;
this.cgb[3] = np * (4279 / 630 + n * (-332 / 35 + n * (-399572 / 14175)));
this.cbg[3] = np * (1237 / 630 + n * (-12 / 5 + n * ( -24832 / 14175)));
np = np * n;
this.cgb[4] = np * (4174 / 315 + n * (-144838 / 6237));
this.cbg[4] = np * (-734 / 315 + n * (109598 / 31185));
np = np * n;
this.cgb[5] = np * (601676 / 22275);
this.cbg[5] = np * (444337 / 155925);
np = Math.pow(n, 2);
this.Qn = this.k0 / (1 + n) * (1 + np * (1 / 4 + np * (1 / 64 + np / 256)));
this.utg[0] = n * (-0.5 + n * ( 2 / 3 + n * (-37 / 96 + n * ( 1 / 360 + n * (81 / 512 + n * (-96199 / 604800))))));
this.gtu[0] = n * (0.5 + n * (-2 / 3 + n * (5 / 16 + n * (41 / 180 + n * (-127 / 288 + n * (7891 / 37800))))));
this.utg[1] = np * (-1 / 48 + n * (-1 / 15 + n * (437 / 1440 + n * (-46 / 105 + n * (1118711 / 3870720)))));
this.gtu[1] = np * (13 / 48 + n * (-3 / 5 + n * (557 / 1440 + n * (281 / 630 + n * (-1983433 / 1935360)))));
np = np * n;
this.utg[2] = np * (-17 / 480 + n * (37 / 840 + n * (209 / 4480 + n * (-5569 / 90720 ))));
this.gtu[2] = np * (61 / 240 + n * (-103 / 140 + n * (15061 / 26880 + n * (167603 / 181440))));
np = np * n;
this.utg[3] = np * (-4397 / 161280 + n * (11 / 504 + n * (830251 / 7257600)));
this.gtu[3] = np * (49561 / 161280 + n * (-179 / 168 + n * (6601661 / 7257600)));
np = np * n;
this.utg[4] = np * (-4583 / 161280 + n * (108847 / 3991680));
this.gtu[4] = np * (34729 / 80640 + n * (-3418889 / 1995840));
np = np * n;
this.utg[5] = np * (-20648693 / 638668800);
this.gtu[5] = np * (212378941 / 319334400);
var Z = gatg(this.cbg, this.lat0);
this.Zb = -this.Qn * (Z + clens(this.gtu, 2 * Z));
}
function forward$3(p) {
var Ce = adjust_lon(p.x - this.long0);
var Cn = p.y;
Cn = gatg(this.cbg, Cn);
var sin_Cn = Math.sin(Cn);
var cos_Cn = Math.cos(Cn);
var sin_Ce = Math.sin(Ce);
var cos_Ce = Math.cos(Ce);
Cn = Math.atan2(sin_Cn, cos_Ce * cos_Cn);
Ce = Math.atan2(sin_Ce * cos_Cn, hypot(sin_Cn, cos_Cn * cos_Ce));
Ce = asinhy(Math.tan(Ce));
var tmp = clens_cmplx(this.gtu, 2 * Cn, 2 * Ce);
Cn = Cn + tmp[0];
Ce = Ce + tmp[1];
var x;
var y;
if (Math.abs(Ce) <= 2.623395162778) {
x = this.a * (this.Qn * Ce) + this.x0;
y = this.a * (this.Qn * Cn + this.Zb) + this.y0;
}
else {
x = Infinity;
y = Infinity;
}
p.x = x;
p.y = y;
return p;
}
function inverse$3(p) {
var Ce = (p.x - this.x0) * (1 / this.a);
var Cn = (p.y - this.y0) * (1 / this.a);
Cn = (Cn - this.Zb) / this.Qn;
Ce = Ce / this.Qn;
var lon;
var lat;
if (Math.abs(Ce) <= 2.623395162778) {
var tmp = clens_cmplx(this.utg, 2 * Cn, 2 * Ce);
Cn = Cn + tmp[0];
Ce = Ce + tmp[1];
Ce = Math.atan(sinh(Ce));
var sin_Cn = Math.sin(Cn);
var cos_Cn = Math.cos(Cn);
var sin_Ce = Math.sin(Ce);
var cos_Ce = Math.cos(Ce);
Cn = Math.atan2(sin_Cn * cos_Ce, hypot(sin_Ce, cos_Ce * cos_Cn));
Ce = Math.atan2(sin_Ce, cos_Ce * cos_Cn);
lon = adjust_lon(Ce + this.long0);
lat = gatg(this.cgb, Cn);
}
else {
lon = Infinity;
lat = Infinity;
}
p.x = lon;
p.y = lat;
return p;
}
var names$4 = ["Extended_Transverse_Mercator", "Extended Transverse Mercator", "etmerc"];
var etmerc = {
init: init$3,
forward: forward$3,
inverse: inverse$3,
names: names$4
};
var adjust_zone = function(zone, lon) {
if (zone === undefined) {
zone = Math.floor((adjust_lon(lon) + Math.PI) * 30 / Math.PI) + 1;
if (zone < 0) {
return 0;
} else if (zone > 60) {
return 60;
}
}
return zone;
};
var dependsOn = 'etmerc';
function init$4() {
var zone = adjust_zone(this.zone, this.long0);
if (zone === undefined) {
throw new Error('unknown utm zone');
}
this.lat0 = 0;
this.long0 = ((6 * Math.abs(zone)) - 183) * D2R;
this.x0 = 500000;
this.y0 = this.utmSouth ? 10000000 : 0;
this.k0 = 0.9996;
etmerc.init.apply(this);
this.forward = etmerc.forward;
this.inverse = etmerc.inverse;
}
var names$5 = ["Universal Transverse Mercator System", "utm"];
var utm = {
init: init$4,
names: names$5,
dependsOn: dependsOn
};
var srat = function(esinp, exp) {
return (Math.pow((1 - esinp) / (1 + esinp), exp));
};
var MAX_ITER$1 = 20;
function init$6() {
var sphi = Math.sin(this.lat0);
var cphi = Math.cos(this.lat0);
cphi *= cphi;
this.rc = Math.sqrt(1 - this.es) / (1 - this.es * sphi * sphi);
this.C = Math.sqrt(1 + this.es * cphi * cphi / (1 - this.es));
this.phic0 = Math.asin(sphi / this.C);
this.ratexp = 0.5 * this.C * this.e;
this.K = Math.tan(0.5 * this.phic0 + FORTPI) / (Math.pow(Math.tan(0.5 * this.lat0 + FORTPI), this.C) * srat(this.e * sphi, this.ratexp));
}
function forward$5(p) {
var lon = p.x;
var lat = p.y;
p.y = 2 * Math.atan(this.K * Math.pow(Math.tan(0.5 * lat + FORTPI), this.C) * srat(this.e * Math.sin(lat), this.ratexp)) - HALF_PI;
p.x = this.C * lon;
return p;
}
function inverse$5(p) {
var DEL_TOL = 1e-14;
var lon = p.x / this.C;
var lat = p.y;
var num = Math.pow(Math.tan(0.5 * lat + FORTPI) / this.K, 1 / this.C);
for (var i = MAX_ITER$1; i > 0; --i) {
lat = 2 * Math.atan(num * srat(this.e * Math.sin(p.y), - 0.5 * this.e)) - HALF_PI;
if (Math.abs(lat - p.y) < DEL_TOL) {
break;
}
p.y = lat;
}
/* convergence failed */
if (!i) {
return null;
}
p.x = lon;
p.y = lat;
return p;
}
var names$7 = ["gauss"];
var gauss = {
init: init$6,
forward: forward$5,
inverse: inverse$5,
names: names$7
};
function init$5() {
gauss.init.apply(this);
if (!this.rc) {
return;
}
this.sinc0 = Math.sin(this.phic0);
this.cosc0 = Math.cos(this.phic0);
this.R2 = 2 * this.rc;
if (!this.title) {
this.title = "Oblique Stereographic Alternative";
}
}
function forward$4(p) {
var sinc, cosc, cosl, k;
p.x = adjust_lon(p.x - this.long0);
gauss.forward.apply(this, [p]);
sinc = Math.sin(p.y);
cosc = Math.cos(p.y);
cosl = Math.cos(p.x);
k = this.k0 * this.R2 / (1 + this.sinc0 * sinc + this.cosc0 * cosc * cosl);
p.x = k * cosc * Math.sin(p.x);
p.y = k * (this.cosc0 * sinc - this.sinc0 * cosc * cosl);
p.x = this.a * p.x + this.x0;
p.y = this.a * p.y + this.y0;
return p;
}
function inverse$4(p) {
var sinc, cosc, lon, lat, rho;
p.x = (p.x - this.x0) / this.a;
p.y = (p.y - this.y0) / this.a;
p.x /= this.k0;
p.y /= this.k0;
if ((rho = Math.sqrt(p.x * p.x + p.y * p.y))) {
var c = 2 * Math.atan2(rho, this.R2);
sinc = Math.sin(c);
cosc = Math.cos(c);
lat = Math.asin(cosc * this.sinc0 + p.y * sinc * this.cosc0 / rho);
lon = Math.atan2(p.x * sinc, rho * this.cosc0 * cosc - p.y * this.sinc0 * sinc);
}
else {
lat = this.phic0;
lon = 0;
}
p.x = lon;
p.y = lat;
gauss.inverse.apply(this, [p]);
p.x = adjust_lon(p.x + this.long0);
return p;
}
var names$6 = ["Stereographic_North_Pole", "Oblique_Stereographic", "Polar_Stereographic", "sterea","Oblique Stereographic Alternative"];
var sterea = {
init: init$5,
forward: forward$4,
inverse: inverse$4,
names: names$6
};
function ssfn_(phit, sinphi, eccen) {
sinphi *= eccen;
return (Math.tan(0.5 * (HALF_PI + phit)) * Math.pow((1 - sinphi) / (1 + sinphi), 0.5 * eccen));
}
function init$7() {
this.coslat0 = Math.cos(this.lat0);
this.sinlat0 = Math.sin(this.lat0);
if (this.sphere) {
if (this.k0 === 1 && !isNaN(this.lat_ts) && Math.abs(this.coslat0) <= EPSLN) {
this.k0 = 0.5 * (1 + sign(this.lat0) * Math.sin(this.lat_ts));
}
}
else {
if (Math.abs(this.coslat0) <= EPSLN) {
if (this.lat0 > 0) {
//North pole
//trace('stere:north pole');
this.con = 1;
}
else {
//South pole
//trace('stere:south pole');
this.con = -1;
}
}
this.cons = Math.sqrt(Math.pow(1 + this.e, 1 + this.e) * Math.pow(1 - this.e, 1 - this.e));
if (this.k0 === 1 && !isNaN(this.lat_ts) && Math.abs(this.coslat0) <= EPSLN) {
this.k0 = 0.5 * this.cons * msfnz(this.e, Math.sin(this.lat_ts), Math.cos(this.lat_ts)) / tsfnz(this.e, this.con * this.lat_ts, this.con * Math.sin(this.lat_ts));
}
this.ms1 = msfnz(this.e, this.sinlat0, this.coslat0);
this.X0 = 2 * Math.atan(this.ssfn_(this.lat0, this.sinlat0, this.e)) - HALF_PI;
this.cosX0 = Math.cos(this.X0);
this.sinX0 = Math.sin(this.X0);
}
}
// Stereographic forward equations--mapping lat,long to x,y
function forward$6(p) {
var lon = p.x;
var lat = p.y;
var sinlat = Math.sin(lat);
var coslat = Math.cos(lat);
var A, X, sinX, cosX, ts, rh;
var dlon = adjust_lon(lon - this.long0);
if (Math.abs(Math.abs(lon - this.long0) - Math.PI) <= EPSLN && Math.abs(lat + this.lat0) <= EPSLN) {
//case of the origine point
//trace('stere:this is the origin point');
p.x = NaN;
p.y = NaN;
return p;
}
if (this.sphere) {
//trace('stere:sphere case');
A = 2 * this.k0 / (1 + this.sinlat0 * sinlat + this.coslat0 * coslat * Math.cos(dlon));
p.x = this.a * A * coslat * Math.sin(dlon) + this.x0;
p.y = this.a * A * (this.coslat0 * sinlat - this.sinlat0 * coslat * Math.cos(dlon)) + this.y0;
return p;
}
else {
X = 2 * Math.atan(this.ssfn_(lat, sinlat, this.e)) - HALF_PI;
cosX = Math.cos(X);
sinX = Math.sin(X);
if (Math.abs(this.coslat0) <= EPSLN) {
ts = tsfnz(this.e, lat * this.con, this.con * sinlat);
rh = 2 * this.a * this.k0 * ts / this.cons;
p.x = this.x0 + rh * Math.sin(lon - this.long0);
p.y = this.y0 - this.con * rh * Math.cos(lon - this.long0);
//trace(p.toString());
return p;
}
else if (Math.abs(this.sinlat0) < EPSLN) {
//Eq
//trace('stere:equateur');
A = 2 * this.a * this.k0 / (1 + cosX * Math.cos(dlon));
p.y = A * sinX;
}
else {
//other case
//trace('stere:normal case');
A = 2 * this.a * this.k0 * this.ms1 / (this.cosX0 * (1 + this.sinX0 * sinX + this.cosX0 * cosX * Math.cos(dlon)));
p.y = A * (this.cosX0 * sinX - this.sinX0 * cosX * Math.cos(dlon)) + this.y0;
}
p.x = A * cosX * Math.sin(dlon) + this.x0;
}
//trace(p.toString());
return p;
}
//* Stereographic inverse equations--mapping x,y to lat/long
function inverse$6(p) {
p.x -= this.x0;
p.y -= this.y0;
var lon, lat, ts, ce, Chi;
var rh = Math.sqrt(p.x * p.x + p.y * p.y);
if (this.sphere) {
var c = 2 * Math.atan(rh / (0.5 * this.a * this.k0));
lon = this.long0;
lat = this.lat0;
if (rh <= EPSLN) {
p.x = lon;
p.y = lat;
return p;
}
lat = Math.asin(Math.cos(c) * this.sinlat0 + p.y * Math.sin(c) * this.coslat0 / rh);
if (Math.abs(this.coslat0) < EPSLN) {
if (this.lat0 > 0) {
lon = adjust_lon(this.long0 + Math.atan2(p.x, - 1 * p.y));
}
else {
lon = adjust_lon(this.long0 + Math.atan2(p.x, p.y));
}
}
else {
lon = adjust_lon(this.long0 + Math.atan2(p.x * Math.sin(c), rh * this.coslat0 * Math.cos(c) - p.y * this.sinlat0 * Math.sin(c)));
}
p.x = lon;
p.y = lat;
return p;
}
else {
if (Math.abs(this.coslat0) <= EPSLN) {
if (rh <= EPSLN) {
lat = this.lat0;
lon = this.long0;
p.x = lon;
p.y = lat;
//trace(p.toString());
return p;
}
p.x *= this.con;
p.y *= this.con;
ts = rh * this.cons / (2 * this.a * this.k0);
lat = this.con * phi2z(this.e, ts);
lon = this.con * adjust_lon(this.con * this.long0 + Math.atan2(p.x, - 1 * p.y));
}
else {
ce = 2 * Math.atan(rh * this.cosX0 / (2 * this.a * this.k0 * this.ms1));
lon = this.long0;
if (rh <= EPSLN) {
Chi = this.X0;
}
else {
Chi = Math.asin(Math.cos(ce) * this.sinX0 + p.y * Math.sin(ce) * this.cosX0 / rh);
lon = adjust_lon(this.long0 + Math.atan2(p.x * Math.sin(ce), rh * this.cosX0 * Math.cos(ce) - p.y * this.sinX0 * Math.sin(ce)));
}
lat = -1 * phi2z(this.e, Math.tan(0.5 * (HALF_PI + Chi)));
}
}
p.x = lon;
p.y = lat;
//trace(p.toString());
return p;
}
var names$8 = ["stere", "Stereographic_South_Pole", "Polar Stereographic (variant B)"];
var stere = {
init: init$7,
forward: forward$6,
inverse: inverse$6,
names: names$8,
ssfn_: ssfn_
};
/*
references:
Formules et constantes pour le Calcul pour la
projection cylindrique conforme à axe oblique et pour la transformation entre
des systèmes de référence.
http://www.swisstopo.admin.ch/internet/swisstopo/fr/home/topics/survey/sys/refsys/switzerland.parsysrelated1.31216.downloadList.77004.DownloadFile.tmp/swissprojectionfr.pdf
*/
function init$8() {
var phy0 = this.lat0;
this.lambda0 = this.long0;
var sinPhy0 = Math.sin(phy0);
var semiMajorAxis = this.a;
var invF = this.rf;
var flattening = 1 / invF;
var e2 = 2 * flattening - Math.pow(flattening, 2);
var e = this.e = Math.sqrt(e2);
this.R = this.k0 * semiMajorAxis * Math.sqrt(1 - e2) / (1 - e2 * Math.pow(sinPhy0, 2));
this.alpha = Math.sqrt(1 + e2 / (1 - e2) * Math.pow(Math.cos(phy0), 4));
this.b0 = Math.asin(sinPhy0 / this.alpha);
var k1 = Math.log(Math.tan(Math.PI / 4 + this.b0 / 2));
var k2 = Math.log(Math.tan(Math.PI / 4 + phy0 / 2));
var k3 = Math.log((1 + e * sinPhy0) / (1 - e * sinPhy0));
this.K = k1 - this.alpha * k2 + this.alpha * e / 2 * k3;
}
function forward$7(p) {
var Sa1 = Math.log(Math.tan(Math.PI / 4 - p.y / 2));
var Sa2 = this.e / 2 * Math.log((1 + this.e * Math.sin(p.y)) / (1 - this.e * Math.sin(p.y)));
var S = -this.alpha * (Sa1 + Sa2) + this.K;
// spheric latitude
var b = 2 * (Math.atan(Math.exp(S)) - Math.PI / 4);
// spheric longitude
var I = this.alpha * (p.x - this.lambda0);
// psoeudo equatorial rotation
var rotI = Math.atan(Math.sin(I) / (Math.sin(this.b0) * Math.tan(b) + Math.cos(this.b0) * Math.cos(I)));
var rotB = Math.asin(Math.cos(this.b0) * Math.sin(b) - Math.sin(this.b0) * Math.cos(b) * Math.cos(I));
p.y = this.R / 2 * Math.log((1 + Math.sin(rotB)) / (1 - Math.sin(rotB))) + this.y0;
p.x = this.R * rotI + this.x0;
return p;
}
function inverse$7(p) {
var Y = p.x - this.x0;
var X = p.y - this.y0;
var rotI = Y / this.R;
var rotB = 2 * (Math.atan(Math.exp(X / this.R)) - Math.PI / 4);
var b = Math.asin(Math.cos(this.b0) * Math.sin(rotB) + Math.sin(this.b0) * Math.cos(rotB) * Math.cos(rotI));
var I = Math.atan(Math.sin(rotI) / (Math.cos(this.b0) * Math.cos(rotI) - Math.sin(this.b0) * Math.tan(rotB)));
var lambda = this.lambda0 + I / this.alpha;
var S = 0;
var phy = b;
var prevPhy = -1000;
var iteration = 0;
while (Math.abs(phy - prevPhy) > 0.0000001) {
if (++iteration > 20) {
//...reportError("omercFwdInfinity");
return;
}
//S = Math.log(Math.tan(Math.PI / 4 + phy / 2));
S = 1 / this.alpha * (Math.log(Math.tan(Math.PI / 4 + b / 2)) - this.K) + this.e * Math.log(Math.tan(Math.PI / 4 + Math.asin(this.e * Math.sin(phy)) / 2));
prevPhy = phy;
phy = 2 * Math.atan(Math.exp(S)) - Math.PI / 2;
}
p.x = lambda;
p.y = phy;
return p;
}
var names$9 = ["somerc"];
var somerc = {
init: init$8,
forward: forward$7,
inverse: inverse$7,
names: names$9
};
/* Initialize the Oblique Mercator projection
------------------------------------------*/
function init$9() {
this.no_off = this.no_off || false;
this.no_rot = this.no_rot || false;
if (isNaN(this.k0)) {
this.k0 = 1;
}
var sinlat = Math.sin(this.lat0);
var coslat = Math.cos(this.lat0);
var con = this.e * sinlat;
this.bl = Math.sqrt(1 + this.es / (1 - this.es) * Math.pow(coslat, 4));
this.al = this.a * this.bl * this.k0 * Math.sqrt(1 - this.es) / (1 - con * con);
var t0 = tsfnz(this.e, this.lat0, sinlat);
var dl = this.bl / coslat * Math.sqrt((1 - this.es) / (1 - con * con));
if (dl * dl < 1) {
dl = 1;
}
var fl;
var gl;
if (!isNaN(this.longc)) {
//Central point and azimuth method
if (this.lat0 >= 0) {
fl = dl + Math.sqrt(dl * dl - 1);
}
else {
fl = dl - Math.sqrt(dl * dl - 1);
}
this.el = fl * Math.pow(t0, this.bl);
gl = 0.5 * (fl - 1 / fl);
this.gamma0 = Math.asin(Math.sin(this.alpha) / dl);
this.long0 = this.longc - Math.asin(gl * Math.tan(this.gamma0)) / this.bl;
}
else {
//2 points method
var t1 = tsfnz(this.e, this.lat1, Math.sin(this.lat1));
var t2 = tsfnz(this.e, this.lat2, Math.sin(this.lat2));
if (this.lat0 >= 0) {
this.el = (dl + Math.sqrt(dl * dl - 1)) * Math.pow(t0, this.bl);
}
else {
this.el = (dl - Math.sqrt(dl * dl - 1)) * Math.pow(t0, this.bl);
}
var hl = Math.pow(t1, this.bl);
var ll = Math.pow(t2, this.bl);
fl = this.el / hl;
gl = 0.5 * (fl - 1 / fl);
var jl = (this.el * this.el - ll * hl) / (this.el * this.el + ll * hl);
var pl = (ll - hl) / (ll + hl);
var dlon12 = adjust_lon(this.long1 - this.long2);
this.long0 = 0.5 * (this.long1 + this.long2) - Math.atan(jl * Math.tan(0.5 * this.bl * (dlon12)) / pl) / this.bl;
this.long0 = adjust_lon(this.long0);
var dlon10 = adjust_lon(this.long1 - this.long0);
this.gamma0 = Math.atan(Math.sin(this.bl * (dlon10)) / gl);
this.alpha = Math.asin(dl * Math.sin(this.gamma0));
}
if (this.no_off) {
this.uc = 0;
}
else {
if (this.lat0 >= 0) {
this.uc = this.al / this.bl * Math.atan2(Math.sqrt(dl * dl - 1), Math.cos(this.alpha));
}
else {
this.uc = -1 * this.al / this.bl * Math.atan2(Math.sqrt(dl * dl - 1), Math.cos(this.alpha));
}
}
}
/* Oblique Mercator forward equations--mapping lat,long to x,y
----------------------------------------------------------*/
function forward$8(p) {
var lon = p.x;
var lat = p.y;
var dlon = adjust_lon(lon - this.long0);
var us, vs;
var con;
if (Math.abs(Math.abs(lat) - HALF_PI) <= EPSLN) {
if (lat > 0) {
con = -1;
}
else {
con = 1;
}
vs = this.al / this.bl * Math.log(Math.tan(FORTPI + con * this.gamma0 * 0.5));
us = -1 * con * HALF_PI * this.al / this.bl;
}
else {
var t = tsfnz(this.e, lat, Math.sin(lat));
var ql = this.el / Math.pow(t, this.bl);
var sl = 0.5 * (ql - 1 / ql);
var tl = 0.5 * (ql + 1 / ql);
var vl = Math.sin(this.bl * (dlon));
var ul = (sl * Math.sin(this.gamma0) - vl * Math.cos(this.gamma0)) / tl;
if (Math.abs(Math.abs(ul) - 1) <= EPSLN) {
vs = Number.POSITIVE_INFINITY;
}
else {
vs = 0.5 * this.al * Math.log((1 - ul) / (1 + ul)) / this.bl;
}
if (Math.abs(Math.cos(this.bl * (dlon))) <= EPSLN) {
us = this.al * this.bl * (dlon);
}
else {
us = this.al * Math.atan2(sl * Math.cos(this.gamma0) + vl * Math.sin(this.gamma0), Math.cos(this.bl * dlon)) / this.bl;
}
}
if (this.no_rot) {
p.x = this.x0 + us;
p.y = this.y0 + vs;
}
else {
us -= this.uc;
p.x = this.x0 + vs * Math.cos(this.alpha) + us * Math.sin(this.alpha);
p.y = this.y0 + us * Math.cos(this.alpha) - vs * Math.sin(this.alpha);
}
return p;
}
function inverse$8(p) {
var us, vs;
if (this.no_rot) {
vs = p.y - this.y0;
us = p.x - this.x0;
}
else {
vs = (p.x - this.x0) * Math.cos(this.alpha) - (p.y - this.y0) * Math.sin(this.alpha);
us = (p.y - this.y0) * Math.cos(this.alpha) + (p.x - this.x0) * Math.sin(this.alpha);
us += this.uc;
}
var qp = Math.exp(-1 * this.bl * vs / this.al);
var sp = 0.5 * (qp - 1 / qp);
var tp = 0.5 * (qp + 1 / qp);
var vp = Math.sin(this.bl * us / this.al);
var up = (vp * Math.cos(this.gamma0) + sp * Math.sin(this.gamma0)) / tp;
var ts = Math.pow(this.el / Math.sqrt((1 + up) / (1 - up)), 1 / this.bl);
if (Math.abs(up - 1) < EPSLN) {
p.x = this.long0;
p.y = HALF_PI;
}
else if (Math.abs(up + 1) < EPSLN) {
p.x = this.long0;
p.y = -1 * HALF_PI;
}
else {
p.y = phi2z(this.e, ts);
p.x = adjust_lon(this.long0 - Math.atan2(sp * Math.cos(this.gamma0) - vp * Math.sin(this.gamma0), Math.cos(this.bl * us / this.al)) / this.bl);
}
return p;
}
var names$10 = ["Hotine_Oblique_Mercator", "Hotine Oblique Mercator", "Hotine_Oblique_Mercator_Azimuth_Natural_Origin", "Hotine_Oblique_Mercator_Azimuth_Center", "omerc"];
var omerc = {
init: init$9,
forward: forward$8,
inverse: inverse$8,
names: names$10
};
function init$10() {
// array of: r_maj,r_min,lat1,lat2,c_lon,c_lat,false_east,false_north
//double c_lat; /* center latitude */
//double c_lon; /* center longitude */
//double lat1; /* first standard parallel */
//double lat2; /* second standard parallel */
//double r_maj; /* major axis */
//double r_min; /* minor axis */
//double false_east; /* x offset in meters */
//double false_north; /* y offset in meters */
if (!this.lat2) {
this.lat2 = this.lat1;
} //if lat2 is not defined
if (!this.k0) {
this.k0 = 1;
}
this.x0 = this.x0 || 0;
this.y0 = this.y0 || 0;
// Standard Parallels cannot be equal and on opposite sides of the equator
if (Math.abs(this.lat1 + this.lat2) < EPSLN) {
return;
}
var temp = this.b / this.a;
this.e = Math.sqrt(1 - temp * temp);
var sin1 = Math.sin(this.lat1);
var cos1 = Math.cos(this.lat1);
var ms1 = msfnz(this.e, sin1, cos1);
var ts1 = tsfnz(this.e, this.lat1, sin1);
var sin2 = Math.sin(this.lat2);
var cos2 = Math.cos(this.lat2);
var ms2 = msfnz(this.e, sin2, cos2);
var ts2 = tsfnz(this.e, this.lat2, sin2);
var ts0 = tsfnz(this.e, this.lat0, Math.sin(this.lat0));
if (Math.abs(this.lat1 - this.lat2) > EPSLN) {
this.ns = Math.log(ms1 / ms2) / Math.log(ts1 / ts2);
}
else {
this.ns = sin1;
}
if (isNaN(this.ns)) {
this.ns = sin1;
}
this.f0 = ms1 / (this.ns * Math.pow(ts1, this.ns));
this.rh = this.a * this.f0 * Math.pow(ts0, this.ns);
if (!this.title) {
this.title = "Lambert Conformal Conic";
}
}
// Lambert Conformal conic forward equations--mapping lat,long to x,y
// -----------------------------------------------------------------
function forward$9(p) {
var lon = p.x;
var lat = p.y;
// singular cases :
if (Math.abs(2 * Math.abs(lat) - Math.PI) <= EPSLN) {
lat = sign(lat) * (HALF_PI - 2 * EPSLN);
}
var con = Math.abs(Math.abs(lat) - HALF_PI);
var ts, rh1;
if (con > EPSLN) {
ts = tsfnz(this.e, lat, Math.sin(lat));
rh1 = this.a * this.f0 * Math.pow(ts, this.ns);
}
else {
con = lat * this.ns;
if (con <= 0) {
return null;
}
rh1 = 0;
}
var theta = this.ns * adjust_lon(lon - this.long0);
p.x = this.k0 * (rh1 * Math.sin(theta)) + this.x0;
p.y = this.k0 * (this.rh - rh1 * Math.cos(theta)) + this.y0;
return p;
}
// Lambert Conformal Conic inverse equations--mapping x,y to lat/long
// -----------------------------------------------------------------
function inverse$9(p) {
var rh1, con, ts;
var lat, lon;
var x = (p.x - this.x0) / this.k0;
var y = (this.rh - (p.y - this.y0) / this.k0);
if (this.ns > 0) {
rh1 = Math.sqrt(x * x + y * y);
con = 1;
}
else {
rh1 = -Math.sqrt(x * x + y * y);
con = -1;
}
var theta = 0;
if (rh1 !== 0) {
theta = Math.atan2((con * x), (con * y));
}
if ((rh1 !== 0) || (this.ns > 0)) {
con = 1 / this.ns;
ts = Math.pow((rh1 / (this.a * this.f0)), con);
lat = phi2z(this.e, ts);
if (lat === -9999) {
return null;
}
}
else {
lat = -HALF_PI;
}
lon = adjust_lon(theta / this.ns + this.long0);
p.x = lon;
p.y = lat;
return p;
}
var names$11 = ["Lambert Tangential Conformal Conic Projection", "Lambert_Conformal_Conic", "Lambert_Conformal_Conic_2SP", "lcc"];
var lcc = {
init: init$10,
forward: forward$9,
inverse: inverse$9,
names: names$11
};
function init$11() {
this.a = 6377397.155;
this.es = 0.006674372230614;
this.e = Math.sqrt(this.es);
if (!this.lat0) {
this.lat0 = 0.863937979737193;
}
if (!this.long0) {
this.long0 = 0.7417649320975901 - 0.308341501185665;
}
/* if scale not set default to 0.9999 */
if (!this.k0) {
this.k0 = 0.9999;
}
this.s45 = 0.785398163397448; /* 45 */
this.s90 = 2 * this.s45;
this.fi0 = this.lat0;
this.e2 = this.es;
this.e = Math.sqrt(this.e2);
this.alfa = Math.sqrt(1 + (this.e2 * Math.pow(Math.cos(this.fi0), 4)) / (1 - this.e2));
this.uq = 1.04216856380474;
this.u0 = Math.asin(Math.sin(this.fi0) / this.alfa);
this.g = Math.pow((1 + this.e * Math.sin(this.fi0)) / (1 - this.e * Math.sin(this.fi0)), this.alfa * this.e / 2);
this.k = Math.tan(this.u0 / 2 + this.s45) / Math.pow(Math.tan(this.fi0 / 2 + this.s45), this.alfa) * this.g;
this.k1 = this.k0;
this.n0 = this.a * Math.sqrt(1 - this.e2) / (1 - this.e2 * Math.pow(Math.sin(this.fi0), 2));
this.s0 = 1.37008346281555;
this.n = Math.sin(this.s0);
this.ro0 = this.k1 * this.n0 / Math.tan(this.s0);
this.ad = this.s90 - this.uq;
}
/* ellipsoid */
/* calculate xy from lat/lon */
/* Constants, identical to inverse transform function */
function forward$10(p) {
var gfi, u, deltav, s, d, eps, ro;
var lon = p.x;
var lat = p.y;
var delta_lon = adjust_lon(lon - this.long0);
/* Transformation */
gfi = Math.pow(((1 + this.e * Math.sin(lat)) / (1 - this.e * Math.sin(lat))), (this.alfa * this.e / 2));
u = 2 * (Math.atan(this.k * Math.pow(Math.tan(lat / 2 + this.s45), this.alfa) / gfi) - this.s45);
deltav = -delta_lon * this.alfa;
s = Math.asin(Math.cos(this.ad) * Math.sin(u) + Math.sin(this.ad) * Math.cos(u) * Math.cos(deltav));
d = Math.asin(Math.cos(u) * Math.sin(deltav) / Math.cos(s));
eps = this.n * d;
ro = this.ro0 * Math.pow(Math.tan(this.s0 / 2 + this.s45), this.n) / Math.pow(Math.tan(s / 2 + this.s45), this.n);
p.y = ro * Math.cos(eps) / 1;
p.x = ro * Math.sin(eps) / 1;
if (!this.czech) {
p.y *= -1;
p.x *= -1;
}
return (p);
}
/* calculate lat/lon from xy */
function inverse$10(p) {
var u, deltav, s, d, eps, ro, fi1;
var ok;
/* Transformation */
/* revert y, x*/
var tmp = p.x;
p.x = p.y;
p.y = tmp;
if (!this.czech) {
p.y *= -1;
p.x *= -1;
}
ro = Math.sqrt(p.x * p.x + p.y * p.y);
eps = Math.atan2(p.y, p.x);
d = eps / Math.sin(this.s0);
s = 2 * (Math.atan(Math.pow(this.ro0 / ro, 1 / this.n) * Math.tan(this.s0 / 2 + this.s45)) - this.s45);
u = Math.asin(Math.cos(this.ad) * Math.sin(s) - Math.sin(this.ad) * Math.cos(s) * Math.cos(d));
deltav = Math.asin(Math.cos(s) * Math.sin(d) / Math.cos(u));
p.x = this.long0 - deltav / this.alfa;
fi1 = u;
ok = 0;
var iter = 0;
do {
p.y = 2 * (Math.atan(Math.pow(this.k, - 1 / this.alfa) * Math.pow(Math.tan(u / 2 + this.s45), 1 / this.alfa) * Math.pow((1 + this.e * Math.sin(fi1)) / (1 - this.e * Math.sin(fi1)), this.e / 2)) - this.s45);
if (Math.abs(fi1 - p.y) < 0.0000000001) {
ok = 1;
}
fi1 = p.y;
iter += 1;
} while (ok === 0 && iter < 15);
if (iter >= 15) {
return null;
}
return (p);
}
var names$12 = ["Krovak", "krovak"];
var krovak = {
init: init$11,
forward: forward$10,
inverse: inverse$10,
names: names$12
};
var mlfn = function(e0, e1, e2, e3, phi) {
return (e0 * phi - e1 * Math.sin(2 * phi) + e2 * Math.sin(4 * phi) - e3 * Math.sin(6 * phi));
};
var e0fn = function(x) {
return (1 - 0.25 * x * (1 + x / 16 * (3 + 1.25 * x)));
};
var e1fn = function(x) {
return (0.375 * x * (1 + 0.25 * x * (1 + 0.46875 * x)));
};
var e2fn = function(x) {
return (0.05859375 * x * x * (1 + 0.75 * x));
};
var e3fn = function(x) {
return (x * x * x * (35 / 3072));
};
var gN = function(a, e, sinphi) {
var temp = e * sinphi;
return a / Math.sqrt(1 - temp * temp);
};
var adjust_lat = function(x) {
return (Math.abs(x) < HALF_PI) ? x : (x - (sign(x) * Math.PI));
};
var imlfn = function(ml, e0, e1, e2, e3) {
var phi;
var dphi;
phi = ml / e0;
for (var i = 0; i < 15; i++) {
dphi = (ml - (e0 * phi - e1 * Math.sin(2 * phi) + e2 * Math.sin(4 * phi) - e3 * Math.sin(6 * phi))) / (e0 - 2 * e1 * Math.cos(2 * phi) + 4 * e2 * Math.cos(4 * phi) - 6 * e3 * Math.cos(6 * phi));
phi += dphi;
if (Math.abs(dphi) <= 0.0000000001) {
return phi;
}
}
//..reportError("IMLFN-CONV:Latitude failed to converge after 15 iterations");
return NaN;
};
function init$12() {
if (!this.sphere) {
this.e0 = e0fn(this.es);
this.e1 = e1fn(this.es);
this.e2 = e2fn(this.es);
this.e3 = e3fn(this.es);
this.ml0 = this.a * mlfn(this.e0, this.e1, this.e2, this.e3, this.lat0);
}
}
/* Cassini forward equations--mapping lat,long to x,y
-----------------------------------------------------------------------*/
function forward$11(p) {
/* Forward equations
-----------------*/
var x, y;
var lam = p.x;
var phi = p.y;
lam = adjust_lon(lam - this.long0);
if (this.sphere) {
x = this.a * Math.asin(Math.cos(phi) * Math.sin(lam));
y = this.a * (Math.atan2(Math.tan(phi), Math.cos(lam)) - this.lat0);
}
else {
//ellipsoid
var sinphi = Math.sin(phi);
var cosphi = Math.cos(phi);
var nl = gN(this.a, this.e, sinphi);
var tl = Math.tan(phi) * Math.tan(phi);
var al = lam * Math.cos(phi);
var asq = al * al;
var cl = this.es * cosphi * cosphi / (1 - this.es);
var ml = this.a * mlfn(this.e0, this.e1, this.e2, this.e3, phi);
x = nl * al * (1 - asq * tl * (1 / 6 - (8 - tl + 8 * cl) * asq / 120));
y = ml - this.ml0 + nl * sinphi / cosphi * asq * (0.5 + (5 - tl + 6 * cl) * asq / 24);
}
p.x = x + this.x0;
p.y = y + this.y0;
return p;
}
/* Inverse equations
-----------------*/
function inverse$11(p) {
p.x -= this.x0;
p.y -= this.y0;
var x = p.x / this.a;
var y = p.y / this.a;
var phi, lam;
if (this.sphere) {
var dd = y + this.lat0;
phi = Math.asin(Math.sin(dd) * Math.cos(x));
lam = Math.atan2(Math.tan(x), Math.cos(dd));
}
else {
/* ellipsoid */
var ml1 = this.ml0 / this.a + y;
var phi1 = imlfn(ml1, this.e0, this.e1, this.e2, this.e3);
if (Math.abs(Math.abs(phi1) - HALF_PI) <= EPSLN) {
p.x = this.long0;
p.y = HALF_PI;
if (y < 0) {
p.y *= -1;
}
return p;
}
var nl1 = gN(this.a, this.e, Math.sin(phi1));
var rl1 = nl1 * nl1 * nl1 / this.a / this.a * (1 - this.es);
var tl1 = Math.pow(Math.tan(phi1), 2);
var dl = x * this.a / nl1;
var dsq = dl * dl;
phi = phi1 - nl1 * Math.tan(phi1) / rl1 * dl * dl * (0.5 - (1 + 3 * tl1) * dl * dl / 24);
lam = dl * (1 - dsq * (tl1 / 3 + (1 + 3 * tl1) * tl1 * dsq / 15)) / Math.cos(phi1);
}
p.x = adjust_lon(lam + this.long0);
p.y = adjust_lat(phi);
return p;
}
var names$13 = ["Cassini", "Cassini_Soldner", "cass"];
var cass = {
init: init$12,
forward: forward$11,
inverse: inverse$11,
names: names$13
};
var qsfnz = function(eccent, sinphi) {
var con;
if (eccent > 1.0e-7) {
con = eccent * sinphi;
return ((1 - eccent * eccent) * (sinphi / (1 - con * con) - (0.5 / eccent) * Math.log((1 - con) / (1 + con))));
}
else {
return (2 * sinphi);
}
};
/*
reference
"New Equal-Area Map Projections for Noncircular Regions", John P. Snyder,
The American Cartographer, Vol 15, No. 4, October 1988, pp. 341-355.
*/
var S_POLE = 1;
var N_POLE = 2;
var EQUIT = 3;
var OBLIQ = 4;
/* Initialize the Lambert Azimuthal Equal Area projection
------------------------------------------------------*/
function init$13() {
var t = Math.abs(this.lat0);
if (Math.abs(t - HALF_PI) < EPSLN) {
this.mode = this.lat0 < 0 ? this.S_POLE : this.N_POLE;
}
else if (Math.abs(t) < EPSLN) {
this.mode = this.EQUIT;
}
else {
this.mode = this.OBLIQ;
}
if (this.es > 0) {
var sinphi;
this.qp = qsfnz(this.e, 1);
this.mmf = 0.5 / (1 - this.es);
this.apa = authset(this.es);
switch (this.mode) {
case this.N_POLE:
this.dd = 1;
break;
case this.S_POLE:
this.dd = 1;
break;
case this.EQUIT:
this.rq = Math.sqrt(0.5 * this.qp);
this.dd = 1 / this.rq;
this.xmf = 1;
this.ymf = 0.5 * this.qp;
break;
case this.OBLIQ:
this.rq = Math.sqrt(0.5 * this.qp);
sinphi = Math.sin(this.lat0);
this.sinb1 = qsfnz(this.e, sinphi) / this.qp;
this.cosb1 = Math.sqrt(1 - this.sinb1 * this.sinb1);
this.dd = Math.cos(this.lat0) / (Math.sqrt(1 - this.es * sinphi * sinphi) * this.rq * this.cosb1);
this.ymf = (this.xmf = this.rq) / this.dd;
this.xmf *= this.dd;
break;
}
}
else {
if (this.mode === this.OBLIQ) {
this.sinph0 = Math.sin(this.lat0);
this.cosph0 = Math.cos(this.lat0);
}
}
}
/* Lambert Azimuthal Equal Area forward equations--mapping lat,long to x,y
-----------------------------------------------------------------------*/
function forward$12(p) {
/* Forward equations
-----------------*/
var x, y, coslam, sinlam, sinphi, q, sinb, cosb, b, cosphi;
var lam = p.x;
var phi = p.y;
lam = adjust_lon(lam - this.long0);
if (this.sphere) {
sinphi = Math.sin(phi);
cosphi = Math.cos(phi);
coslam = Math.cos(lam);
if (this.mode === this.OBLIQ || this.mode === this.EQUIT) {
y = (this.mode === this.EQUIT) ? 1 + cosphi * coslam : 1 + this.sinph0 * sinphi + this.cosph0 * cosphi * coslam;
if (y <= EPSLN) {
return null;
}
y = Math.sqrt(2 / y);
x = y * cosphi * Math.sin(lam);
y *= (this.mode === this.EQUIT) ? sinphi : this.cosph0 * sinphi - this.sinph0 * cosphi * coslam;
}
else if (this.mode === this.N_POLE || this.mode === this.S_POLE) {
if (this.mode === this.N_POLE) {
coslam = -coslam;
}
if (Math.abs(phi + this.phi0) < EPSLN) {
return null;
}
y = FORTPI - phi * 0.5;
y = 2 * ((this.mode === this.S_POLE) ? Math.cos(y) : Math.sin(y));
x = y * Math.sin(lam);
y *= coslam;
}
}
else {
sinb = 0;
cosb = 0;
b = 0;
coslam = Math.cos(lam);
sinlam = Math.sin(lam);
sinphi = Math.sin(phi);
q = qsfnz(this.e, sinphi);
if (this.mode === this.OBLIQ || this.mode === this.EQUIT) {
sinb = q / this.qp;
cosb = Math.sqrt(1 - sinb * sinb);
}
switch (this.mode) {
case this.OBLIQ:
b = 1 + this.sinb1 * sinb + this.cosb1 * cosb * coslam;
break;
case this.EQUIT:
b = 1 + cosb * coslam;
break;
case this.N_POLE:
b = HALF_PI + phi;
q = this.qp - q;
break;
case this.S_POLE:
b = phi - HALF_PI;
q = this.qp + q;
break;
}
if (Math.abs(b) < EPSLN) {
return null;
}
switch (this.mode) {
case this.OBLIQ:
case this.EQUIT:
b = Math.sqrt(2 / b);
if (this.mode === this.OBLIQ) {
y = this.ymf * b * (this.cosb1 * sinb - this.sinb1 * cosb * coslam);
}
else {
y = (b = Math.sqrt(2 / (1 + cosb * coslam))) * sinb * this.ymf;
}
x = this.xmf * b * cosb * sinlam;
break;
case this.N_POLE:
case this.S_POLE:
if (q >= 0) {
x = (b = Math.sqrt(q)) * sinlam;
y = coslam * ((this.mode === this.S_POLE) ? b : -b);
}
else {
x = y = 0;
}
break;
}
}
p.x = this.a * x + this.x0;
p.y = this.a * y + this.y0;
return p;
}
/* Inverse equations
-----------------*/
function inverse$12(p) {
p.x -= this.x0;
p.y -= this.y0;
var x = p.x / this.a;
var y = p.y / this.a;
var lam, phi, cCe, sCe, q, rho, ab;
if (this.sphere) {
var cosz = 0,
rh, sinz = 0;
rh = Math.sqrt(x * x + y * y);
phi = rh * 0.5;
if (phi > 1) {
return null;
}
phi = 2 * Math.asin(phi);
if (this.mode === this.OBLIQ || this.mode === this.EQUIT) {
sinz = Math.sin(phi);
cosz = Math.cos(phi);
}
switch (this.mode) {
case this.EQUIT:
phi = (Math.abs(rh) <= EPSLN) ? 0 : Math.asin(y * sinz / rh);
x *= sinz;
y = cosz * rh;
break;
case this.OBLIQ:
phi = (Math.abs(rh) <= EPSLN) ? this.phi0 : Math.asin(cosz * this.sinph0 + y * sinz * this.cosph0 / rh);
x *= sinz * this.cosph0;
y = (cosz - Math.sin(phi) * this.sinph0) * rh;
break;
case this.N_POLE:
y = -y;
phi = HALF_PI - phi;
break;
case this.S_POLE:
phi -= HALF_PI;
break;
}
lam = (y === 0 && (this.mode === this.EQUIT || this.mode === this.OBLIQ)) ? 0 : Math.atan2(x, y);
}
else {
ab = 0;
if (this.mode === this.OBLIQ || this.mode === this.EQUIT) {
x /= this.dd;
y *= this.dd;
rho = Math.sqrt(x * x + y * y);
if (rho < EPSLN) {
p.x = 0;
p.y = this.phi0;
return p;
}
sCe = 2 * Math.asin(0.5 * rho / this.rq);
cCe = Math.cos(sCe);
x *= (sCe = Math.sin(sCe));
if (this.mode === this.OBLIQ) {
ab = cCe * this.sinb1 + y * sCe * this.cosb1 / rho;
q = this.qp * ab;
y = rho * this.cosb1 * cCe - y * this.sinb1 * sCe;
}
else {
ab = y * sCe / rho;
q = this.qp * ab;
y = rho * cCe;
}
}
else if (this.mode === this.N_POLE || this.mode === this.S_POLE) {
if (this.mode === this.N_POLE) {
y = -y;
}
q = (x * x + y * y);
if (!q) {
p.x = 0;
p.y = this.phi0;
return p;
}
ab = 1 - q / this.qp;
if (this.mode === this.S_POLE) {
ab = -ab;
}
}
lam = Math.atan2(x, y);
phi = authlat(Math.asin(ab), this.apa);
}
p.x = adjust_lon(this.long0 + lam);
p.y = phi;
return p;
}
/* determine latitude from authalic latitude */
var P00 = 0.33333333333333333333;
var P01 = 0.17222222222222222222;
var P02 = 0.10257936507936507936;
var P10 = 0.06388888888888888888;
var P11 = 0.06640211640211640211;
var P20 = 0.01641501294219154443;
function authset(es) {
var t;
var APA = [];
APA[0] = es * P00;
t = es * es;
APA[0] += t * P01;
APA[1] = t * P10;
t *= es;
APA[0] += t * P02;
APA[1] += t * P11;
APA[2] = t * P20;
return APA;
}
function authlat(beta, APA) {
var t = beta + beta;
return (beta + APA[0] * Math.sin(t) + APA[1] * Math.sin(t + t) + APA[2] * Math.sin(t + t + t));
}
var names$14 = ["Lambert Azimuthal Equal Area", "Lambert_Azimuthal_Equal_Area", "laea"];
var laea = {
init: init$13,
forward: forward$12,
inverse: inverse$12,
names: names$14,
S_POLE: S_POLE,
N_POLE: N_POLE,
EQUIT: EQUIT,
OBLIQ: OBLIQ
};
var asinz = function(x) {
if (Math.abs(x) > 1) {
x = (x > 1) ? 1 : -1;
}
return Math.asin(x);
};
function init$14() {
if (Math.abs(this.lat1 + this.lat2) < EPSLN) {
return;
}
this.temp = this.b / this.a;
this.es = 1 - Math.pow(this.temp, 2);
this.e3 = Math.sqrt(this.es);
this.sin_po = Math.sin(this.lat1);
this.cos_po = Math.cos(this.lat1);
this.t1 = this.sin_po;
this.con = this.sin_po;
this.ms1 = msfnz(this.e3, this.sin_po, this.cos_po);
this.qs1 = qsfnz(this.e3, this.sin_po, this.cos_po);
this.sin_po = Math.sin(this.lat2);
this.cos_po = Math.cos(this.lat2);
this.t2 = this.sin_po;
this.ms2 = msfnz(this.e3, this.sin_po, this.cos_po);
this.qs2 = qsfnz(this.e3, this.sin_po, this.cos_po);
this.sin_po = Math.sin(this.lat0);
this.cos_po = Math.cos(this.lat0);
this.t3 = this.sin_po;
this.qs0 = qsfnz(this.e3, this.sin_po, this.cos_po);
if (Math.abs(this.lat1 - this.lat2) > EPSLN) {
this.ns0 = (this.ms1 * this.ms1 - this.ms2 * this.ms2) / (this.qs2 - this.qs1);
}
else {
this.ns0 = this.con;
}
this.c = this.ms1 * this.ms1 + this.ns0 * this.qs1;
this.rh = this.a * Math.sqrt(this.c - this.ns0 * this.qs0) / this.ns0;
}
/* Albers Conical Equal Area forward equations--mapping lat,long to x,y
-------------------------------------------------------------------*/
function forward$13(p) {
var lon = p.x;
var lat = p.y;
this.sin_phi = Math.sin(lat);
this.cos_phi = Math.cos(lat);
var qs = qsfnz(this.e3, this.sin_phi, this.cos_phi);
var rh1 = this.a * Math.sqrt(this.c - this.ns0 * qs) / this.ns0;
var theta = this.ns0 * adjust_lon(lon - this.long0);
var x = rh1 * Math.sin(theta) + this.x0;
var y = this.rh - rh1 * Math.cos(theta) + this.y0;
p.x = x;
p.y = y;
return p;
}
function inverse$13(p) {
var rh1, qs, con, theta, lon, lat;
p.x -= this.x0;
p.y = this.rh - p.y + this.y0;
if (this.ns0 >= 0) {
rh1 = Math.sqrt(p.x * p.x + p.y * p.y);
con = 1;
}
else {
rh1 = -Math.sqrt(p.x * p.x + p.y * p.y);
con = -1;
}
theta = 0;
if (rh1 !== 0) {
theta = Math.atan2(con * p.x, con * p.y);
}
con = rh1 * this.ns0 / this.a;
if (this.sphere) {
lat = Math.asin((this.c - con * con) / (2 * this.ns0));
}
else {
qs = (this.c - con * con) / this.ns0;
lat = this.phi1z(this.e3, qs);
}
lon = adjust_lon(theta / this.ns0 + this.long0);
p.x = lon;
p.y = lat;
return p;
}
/* Function to compute phi1, the latitude for the inverse of the
Albers Conical Equal-Area projection.
-------------------------------------------*/
function phi1z(eccent, qs) {
var sinphi, cosphi, con, com, dphi;
var phi = asinz(0.5 * qs);
if (eccent < EPSLN) {
return phi;
}
var eccnts = eccent * eccent;
for (var i = 1; i <= 25; i++) {
sinphi = Math.sin(phi);
cosphi = Math.cos(phi);
con = eccent * sinphi;
com = 1 - con * con;
dphi = 0.5 * com * com / cosphi * (qs / (1 - eccnts) - sinphi / com + 0.5 / eccent * Math.log((1 - con) / (1 + con)));
phi = phi + dphi;
if (Math.abs(dphi) <= 1e-7) {
return phi;
}
}
return null;
}
var names$15 = ["Albers_Conic_Equal_Area", "Albers", "aea"];
var aea = {
init: init$14,
forward: forward$13,
inverse: inverse$13,
names: names$15,
phi1z: phi1z
};
/*
reference:
Wolfram Mathworld "Gnomonic Projection"
http://mathworld.wolfram.com/GnomonicProjection.html
Accessed: 12th November 2009
*/
function init$15() {
/* Place parameters in static storage for common use
-------------------------------------------------*/
this.sin_p14 = Math.sin(this.lat0);
this.cos_p14 = Math.cos(this.lat0);
// Approximation for projecting points to the horizon (infinity)
this.infinity_dist = 1000 * this.a;
this.rc = 1;
}
/* Gnomonic forward equations--mapping lat,long to x,y
---------------------------------------------------*/
function forward$14(p) {
var sinphi, cosphi; /* sin and cos value */
var dlon; /* delta longitude value */
var coslon; /* cos of longitude */
var ksp; /* scale factor */
var g;
var x, y;
var lon = p.x;
var lat = p.y;
/* Forward equations
-----------------*/
dlon = adjust_lon(lon - this.long0);
sinphi = Math.sin(lat);
cosphi = Math.cos(lat);
coslon = Math.cos(dlon);
g = this.sin_p14 * sinphi + this.cos_p14 * cosphi * coslon;
ksp = 1;
if ((g > 0) || (Math.abs(g) <= EPSLN)) {
x = this.x0 + this.a * ksp * cosphi * Math.sin(dlon) / g;
y = this.y0 + this.a * ksp * (this.cos_p14 * sinphi - this.sin_p14 * cosphi * coslon) / g;
}
else {
// Point is in the opposing hemisphere and is unprojectable
// We still need to return a reasonable point, so we project
// to infinity, on a bearing
// equivalent to the northern hemisphere equivalent
// This is a reasonable approximation for short shapes and lines that
// straddle the horizon.
x = this.x0 + this.infinity_dist * cosphi * Math.sin(dlon);
y = this.y0 + this.infinity_dist * (this.cos_p14 * sinphi - this.sin_p14 * cosphi * coslon);
}
p.x = x;
p.y = y;
return p;
}
function inverse$14(p) {
var rh; /* Rho */
var sinc, cosc;
var c;
var lon, lat;
/* Inverse equations
-----------------*/
p.x = (p.x - this.x0) / this.a;
p.y = (p.y - this.y0) / this.a;
p.x /= this.k0;
p.y /= this.k0;
if ((rh = Math.sqrt(p.x * p.x + p.y * p.y))) {
c = Math.atan2(rh, this.rc);
sinc = Math.sin(c);
cosc = Math.cos(c);
lat = asinz(cosc * this.sin_p14 + (p.y * sinc * this.cos_p14) / rh);
lon = Math.atan2(p.x * sinc, rh * this.cos_p14 * cosc - p.y * this.sin_p14 * sinc);
lon = adjust_lon(this.long0 + lon);
}
else {
lat = this.phic0;
lon = 0;
}
p.x = lon;
p.y = lat;
return p;
}
var names$16 = ["gnom"];
var gnom = {
init: init$15,
forward: forward$14,
inverse: inverse$14,
names: names$16
};
var iqsfnz = function(eccent, q) {
var temp = 1 - (1 - eccent * eccent) / (2 * eccent) * Math.log((1 - eccent) / (1 + eccent));
if (Math.abs(Math.abs(q) - temp) < 1.0E-6) {
if (q < 0) {
return (-1 * HALF_PI);
}
else {
return HALF_PI;
}
}
//var phi = 0.5* q/(1-eccent*eccent);
var phi = Math.asin(0.5 * q);
var dphi;
var sin_phi;
var cos_phi;
var con;
for (var i = 0; i < 30; i++) {
sin_phi = Math.sin(phi);
cos_phi = Math.cos(phi);
con = eccent * sin_phi;
dphi = Math.pow(1 - con * con, 2) / (2 * cos_phi) * (q / (1 - eccent * eccent) - sin_phi / (1 - con * con) + 0.5 / eccent * Math.log((1 - con) / (1 + con)));
phi += dphi;
if (Math.abs(dphi) <= 0.0000000001) {
return phi;
}
}
//console.log("IQSFN-CONV:Latitude failed to converge after 30 iterations");
return NaN;
};
/*
reference:
"Cartographic Projection Procedures for the UNIX Environment-
A User's Manual" by Gerald I. Evenden,
USGS Open File Report 90-284and Release 4 Interim Reports (2003)
*/
function init$16() {
//no-op
if (!this.sphere) {
this.k0 = msfnz(this.e, Math.sin(this.lat_ts), Math.cos(this.lat_ts));
}
}
/* Cylindrical Equal Area forward equations--mapping lat,long to x,y
------------------------------------------------------------*/
function forward$15(p) {
var lon = p.x;
var lat = p.y;
var x, y;
/* Forward equations
-----------------*/
var dlon = adjust_lon(lon - this.long0);
if (this.sphere) {
x = this.x0 + this.a * dlon * Math.cos(this.lat_ts);
y = this.y0 + this.a * Math.sin(lat) / Math.cos(this.lat_ts);
}
else {
var qs = qsfnz(this.e, Math.sin(lat));
x = this.x0 + this.a * this.k0 * dlon;
y = this.y0 + this.a * qs * 0.5 / this.k0;
}
p.x = x;
p.y = y;
return p;
}
/* Cylindrical Equal Area inverse equations--mapping x,y to lat/long
------------------------------------------------------------*/
function inverse$15(p) {
p.x -= this.x0;
p.y -= this.y0;
var lon, lat;
if (this.sphere) {
lon = adjust_lon(this.long0 + (p.x / this.a) / Math.cos(this.lat_ts));
lat = Math.asin((p.y / this.a) * Math.cos(this.lat_ts));
}
else {
lat = iqsfnz(this.e, 2 * p.y * this.k0 / this.a);
lon = adjust_lon(this.long0 + p.x / (this.a * this.k0));
}
p.x = lon;
p.y = lat;
return p;
}
var names$17 = ["cea"];
var cea = {
init: init$16,
forward: forward$15,
inverse: inverse$15,
names: names$17
};
function init$17() {
this.x0 = this.x0 || 0;
this.y0 = this.y0 || 0;
this.lat0 = this.lat0 || 0;
this.long0 = this.long0 || 0;
this.lat_ts = this.lat_ts || 0;
this.title = this.title || "Equidistant Cylindrical (Plate Carre)";
this.rc = Math.cos(this.lat_ts);
}
// forward equations--mapping lat,long to x,y
// -----------------------------------------------------------------
function forward$16(p) {
var lon = p.x;
var lat = p.y;
var dlon = adjust_lon(lon - this.long0);
var dlat = adjust_lat(lat - this.lat0);
p.x = this.x0 + (this.a * dlon * this.rc);
p.y = this.y0 + (this.a * dlat);
return p;
}
// inverse equations--mapping x,y to lat/long
// -----------------------------------------------------------------
function inverse$16(p) {
var x = p.x;
var y = p.y;
p.x = adjust_lon(this.long0 + ((x - this.x0) / (this.a * this.rc)));
p.y = adjust_lat(this.lat0 + ((y - this.y0) / (this.a)));
return p;
}
var names$18 = ["Equirectangular", "Equidistant_Cylindrical", "eqc"];
var eqc = {
init: init$17,
forward: forward$16,
inverse: inverse$16,
names: names$18
};
var MAX_ITER$2 = 20;
function init$18() {
/* Place parameters in static storage for common use
-------------------------------------------------*/
this.temp = this.b / this.a;
this.es = 1 - Math.pow(this.temp, 2); // devait etre dans tmerc.js mais n y est pas donc je commente sinon retour de valeurs nulles
this.e = Math.sqrt(this.es);
this.e0 = e0fn(this.es);
this.e1 = e1fn(this.es);
this.e2 = e2fn(this.es);
this.e3 = e3fn(this.es);
this.ml0 = this.a * mlfn(this.e0, this.e1, this.e2, this.e3, this.lat0); //si que des zeros le calcul ne se fait pas
}
/* Polyconic forward equations--mapping lat,long to x,y
---------------------------------------------------*/
function forward$17(p) {
var lon = p.x;
var lat = p.y;
var x, y, el;
var dlon = adjust_lon(lon - this.long0);
el = dlon * Math.sin(lat);
if (this.sphere) {
if (Math.abs(lat) <= EPSLN) {
x = this.a * dlon;
y = -1 * this.a * this.lat0;
}
else {
x = this.a * Math.sin(el) / Math.tan(lat);
y = this.a * (adjust_lat(lat - this.lat0) + (1 - Math.cos(el)) / Math.tan(lat));
}
}
else {
if (Math.abs(lat) <= EPSLN) {
x = this.a * dlon;
y = -1 * this.ml0;
}
else {
var nl = gN(this.a, this.e, Math.sin(lat)) / Math.tan(lat);
x = nl * Math.sin(el);
y = this.a * mlfn(this.e0, this.e1, this.e2, this.e3, lat) - this.ml0 + nl * (1 - Math.cos(el));
}
}
p.x = x + this.x0;
p.y = y + this.y0;
return p;
}
/* Inverse equations
-----------------*/
function inverse$17(p) {
var lon, lat, x, y, i;
var al, bl;
var phi, dphi;
x = p.x - this.x0;
y = p.y - this.y0;
if (this.sphere) {
if (Math.abs(y + this.a * this.lat0) <= EPSLN) {
lon = adjust_lon(x / this.a + this.long0);
lat = 0;
}
else {
al = this.lat0 + y / this.a;
bl = x * x / this.a / this.a + al * al;
phi = al;
var tanphi;
for (i = MAX_ITER$2; i; --i) {
tanphi = Math.tan(phi);
dphi = -1 * (al * (phi * tanphi + 1) - phi - 0.5 * (phi * phi + bl) * tanphi) / ((phi - al) / tanphi - 1);
phi += dphi;
if (Math.abs(dphi) <= EPSLN) {
lat = phi;
break;
}
}
lon = adjust_lon(this.long0 + (Math.asin(x * Math.tan(phi) / this.a)) / Math.sin(lat));
}
}
else {
if (Math.abs(y + this.ml0) <= EPSLN) {
lat = 0;
lon = adjust_lon(this.long0 + x / this.a);
}
else {
al = (this.ml0 + y) / this.a;
bl = x * x / this.a / this.a + al * al;
phi = al;
var cl, mln, mlnp, ma;
var con;
for (i = MAX_ITER$2; i; --i) {
con = this.e * Math.sin(phi);
cl = Math.sqrt(1 - con * con) * Math.tan(phi);
mln = this.a * mlfn(this.e0, this.e1, this.e2, this.e3, phi);
mlnp = this.e0 - 2 * this.e1 * Math.cos(2 * phi) + 4 * this.e2 * Math.cos(4 * phi) - 6 * this.e3 * Math.cos(6 * phi);
ma = mln / this.a;
dphi = (al * (cl * ma + 1) - ma - 0.5 * cl * (ma * ma + bl)) / (this.es * Math.sin(2 * phi) * (ma * ma + bl - 2 * al * ma) / (4 * cl) + (al - ma) * (cl * mlnp - 2 / Math.sin(2 * phi)) - mlnp);
phi -= dphi;
if (Math.abs(dphi) <= EPSLN) {
lat = phi;
break;
}
}
//lat=phi4z(this.e,this.e0,this.e1,this.e2,this.e3,al,bl,0,0);
cl = Math.sqrt(1 - this.es * Math.pow(Math.sin(lat), 2)) * Math.tan(lat);
lon = adjust_lon(this.long0 + Math.asin(x * cl / this.a) / Math.sin(lat));
}
}
p.x = lon;
p.y = lat;
return p;
}
var names$19 = ["Polyconic", "poly"];
var poly = {
init: init$18,
forward: forward$17,
inverse: inverse$17,
names: names$19
};
/*
reference
Department of Land and Survey Technical Circular 1973/32
http://www.linz.govt.nz/docs/miscellaneous/nz-map-definition.pdf
OSG Technical Report 4.1
http://www.linz.govt.nz/docs/miscellaneous/nzmg.pdf
*/
/**
* iterations: Number of iterations to refine inverse transform.
* 0 -> km accuracy
* 1 -> m accuracy -- suitable for most mapping applications
* 2 -> mm accuracy
*/
function init$19() {
this.A = [];
this.A[1] = 0.6399175073;
this.A[2] = -0.1358797613;
this.A[3] = 0.063294409;
this.A[4] = -0.02526853;
this.A[5] = 0.0117879;
this.A[6] = -0.0055161;
this.A[7] = 0.0026906;
this.A[8] = -0.001333;
this.A[9] = 0.00067;
this.A[10] = -0.00034;
this.B_re = [];
this.B_im = [];
this.B_re[1] = 0.7557853228;
this.B_im[1] = 0;
this.B_re[2] = 0.249204646;
this.B_im[2] = 0.003371507;
this.B_re[3] = -0.001541739;
this.B_im[3] = 0.041058560;
this.B_re[4] = -0.10162907;
this.B_im[4] = 0.01727609;
this.B_re[5] = -0.26623489;
this.B_im[5] = -0.36249218;
this.B_re[6] = -0.6870983;
this.B_im[6] = -1.1651967;
this.C_re = [];
this.C_im = [];
this.C_re[1] = 1.3231270439;
this.C_im[1] = 0;
this.C_re[2] = -0.577245789;
this.C_im[2] = -0.007809598;
this.C_re[3] = 0.508307513;
this.C_im[3] = -0.112208952;
this.C_re[4] = -0.15094762;
this.C_im[4] = 0.18200602;
this.C_re[5] = 1.01418179;
this.C_im[5] = 1.64497696;
this.C_re[6] = 1.9660549;
this.C_im[6] = 2.5127645;
this.D = [];
this.D[1] = 1.5627014243;
this.D[2] = 0.5185406398;
this.D[3] = -0.03333098;
this.D[4] = -0.1052906;
this.D[5] = -0.0368594;
this.D[6] = 0.007317;
this.D[7] = 0.01220;
this.D[8] = 0.00394;
this.D[9] = -0.0013;
}
/**
New Zealand Map Grid Forward - long/lat to x/y
long/lat in radians
*/
function forward$18(p) {
var n;
var lon = p.x;
var lat = p.y;
var delta_lat = lat - this.lat0;
var delta_lon = lon - this.long0;
// 1. Calculate d_phi and d_psi ... // and d_lambda
// For this algorithm, delta_latitude is in seconds of arc x 10-5, so we need to scale to those units. Longitude is radians.
var d_phi = delta_lat / SEC_TO_RAD * 1E-5;
var d_lambda = delta_lon;
var d_phi_n = 1; // d_phi^0
var d_psi = 0;
for (n = 1; n <= 10; n++) {
d_phi_n = d_phi_n * d_phi;
d_psi = d_psi + this.A[n] * d_phi_n;
}
// 2. Calculate theta
var th_re = d_psi;
var th_im = d_lambda;
// 3. Calculate z
var th_n_re = 1;
var th_n_im = 0; // theta^0
var th_n_re1;
var th_n_im1;
var z_re = 0;
var z_im = 0;
for (n = 1; n <= 6; n++) {
th_n_re1 = th_n_re * th_re - th_n_im * th_im;
th_n_im1 = th_n_im * th_re + th_n_re * th_im;
th_n_re = th_n_re1;
th_n_im = th_n_im1;
z_re = z_re + this.B_re[n] * th_n_re - this.B_im[n] * th_n_im;
z_im = z_im + this.B_im[n] * th_n_re + this.B_re[n] * th_n_im;
}
// 4. Calculate easting and northing
p.x = (z_im * this.a) + this.x0;
p.y = (z_re * this.a) + this.y0;
return p;
}
/**
New Zealand Map Grid Inverse - x/y to long/lat
*/
function inverse$18(p) {
var n;
var x = p.x;
var y = p.y;
var delta_x = x - this.x0;
var delta_y = y - this.y0;
// 1. Calculate z
var z_re = delta_y / this.a;
var z_im = delta_x / this.a;
// 2a. Calculate theta - first approximation gives km accuracy
var z_n_re = 1;
var z_n_im = 0; // z^0
var z_n_re1;
var z_n_im1;
var th_re = 0;
var th_im = 0;
for (n = 1; n <= 6; n++) {
z_n_re1 = z_n_re * z_re - z_n_im * z_im;
z_n_im1 = z_n_im * z_re + z_n_re * z_im;
z_n_re = z_n_re1;
z_n_im = z_n_im1;
th_re = th_re + this.C_re[n] * z_n_re - this.C_im[n] * z_n_im;
th_im = th_im + this.C_im[n] * z_n_re + this.C_re[n] * z_n_im;
}
// 2b. Iterate to refine the accuracy of the calculation
// 0 iterations gives km accuracy
// 1 iteration gives m accuracy -- good enough for most mapping applications
// 2 iterations bives mm accuracy
for (var i = 0; i < this.iterations; i++) {
var th_n_re = th_re;
var th_n_im = th_im;
var th_n_re1;
var th_n_im1;
var num_re = z_re;
var num_im = z_im;
for (n = 2; n <= 6; n++) {
th_n_re1 = th_n_re * th_re - th_n_im * th_im;
th_n_im1 = th_n_im * th_re + th_n_re * th_im;
th_n_re = th_n_re1;
th_n_im = th_n_im1;
num_re = num_re + (n - 1) * (this.B_re[n] * th_n_re - this.B_im[n] * th_n_im);
num_im = num_im + (n - 1) * (this.B_im[n] * th_n_re + this.B_re[n] * th_n_im);
}
th_n_re = 1;
th_n_im = 0;
var den_re = this.B_re[1];
var den_im = this.B_im[1];
for (n = 2; n <= 6; n++) {
th_n_re1 = th_n_re * th_re - th_n_im * th_im;
th_n_im1 = th_n_im * th_re + th_n_re * th_im;
th_n_re = th_n_re1;
th_n_im = th_n_im1;
den_re = den_re + n * (this.B_re[n] * th_n_re - this.B_im[n] * th_n_im);
den_im = den_im + n * (this.B_im[n] * th_n_re + this.B_re[n] * th_n_im);
}
// Complex division
var den2 = den_re * den_re + den_im * den_im;
th_re = (num_re * den_re + num_im * den_im) / den2;
th_im = (num_im * den_re - num_re * den_im) / den2;
}
// 3. Calculate d_phi ... // and d_lambda
var d_psi = th_re;
var d_lambda = th_im;
var d_psi_n = 1; // d_psi^0
var d_phi = 0;
for (n = 1; n <= 9; n++) {
d_psi_n = d_psi_n * d_psi;
d_phi = d_phi + this.D[n] * d_psi_n;
}
// 4. Calculate latitude and longitude
// d_phi is calcuated in second of arc * 10^-5, so we need to scale back to radians. d_lambda is in radians.
var lat = this.lat0 + (d_phi * SEC_TO_RAD * 1E5);
var lon = this.long0 + d_lambda;
p.x = lon;
p.y = lat;
return p;
}
var names$20 = ["New_Zealand_Map_Grid", "nzmg"];
var nzmg = {
init: init$19,
forward: forward$18,
inverse: inverse$18,
names: names$20
};
/*
reference
"New Equal-Area Map Projections for Noncircular Regions", John P. Snyder,
The American Cartographer, Vol 15, No. 4, October 1988, pp. 341-355.
*/
/* Initialize the Miller Cylindrical projection
-------------------------------------------*/
function init$20() {
//no-op
}
/* Miller Cylindrical forward equations--mapping lat,long to x,y
------------------------------------------------------------*/
function forward$19(p) {
var lon = p.x;
var lat = p.y;
/* Forward equations
-----------------*/
var dlon = adjust_lon(lon - this.long0);
var x = this.x0 + this.a * dlon;
var y = this.y0 + this.a * Math.log(Math.tan((Math.PI / 4) + (lat / 2.5))) * 1.25;
p.x = x;
p.y = y;
return p;
}
/* Miller Cylindrical inverse equations--mapping x,y to lat/long
------------------------------------------------------------*/
function inverse$19(p) {
p.x -= this.x0;
p.y -= this.y0;
var lon = adjust_lon(this.long0 + p.x / this.a);
var lat = 2.5 * (Math.atan(Math.exp(0.8 * p.y / this.a)) - Math.PI / 4);
p.x = lon;
p.y = lat;
return p;
}
var names$21 = ["Miller_Cylindrical", "mill"];
var mill = {
init: init$20,
forward: forward$19,
inverse: inverse$19,
names: names$21
};
var MAX_ITER$3 = 20;
function init$21() {
/* Place parameters in static storage for common use
-------------------------------------------------*/
if (!this.sphere) {
this.en = pj_enfn(this.es);
}
else {
this.n = 1;
this.m = 0;
this.es = 0;
this.C_y = Math.sqrt((this.m + 1) / this.n);
this.C_x = this.C_y / (this.m + 1);
}
}
/* Sinusoidal forward equations--mapping lat,long to x,y
-----------------------------------------------------*/
function forward$20(p) {
var x, y;
var lon = p.x;
var lat = p.y;
/* Forward equations
-----------------*/
lon = adjust_lon(lon - this.long0);
if (this.sphere) {
if (!this.m) {
lat = this.n !== 1 ? Math.asin(this.n * Math.sin(lat)) : lat;
}
else {
var k = this.n * Math.sin(lat);
for (var i = MAX_ITER$3; i; --i) {
var V = (this.m * lat + Math.sin(lat) - k) / (this.m + Math.cos(lat));
lat -= V;
if (Math.abs(V) < EPSLN) {
break;
}
}
}
x = this.a * this.C_x * lon * (this.m + Math.cos(lat));
y = this.a * this.C_y * lat;
}
else {
var s = Math.sin(lat);
var c = Math.cos(lat);
y = this.a * pj_mlfn(lat, s, c, this.en);
x = this.a * lon * c / Math.sqrt(1 - this.es * s * s);
}
p.x = x;
p.y = y;
return p;
}
function inverse$20(p) {
var lat, temp, lon, s;
p.x -= this.x0;
lon = p.x / this.a;
p.y -= this.y0;
lat = p.y / this.a;
if (this.sphere) {
lat /= this.C_y;
lon = lon / (this.C_x * (this.m + Math.cos(lat)));
if (this.m) {
lat = asinz((this.m * lat + Math.sin(lat)) / this.n);
}
else if (this.n !== 1) {
lat = asinz(Math.sin(lat) / this.n);
}
lon = adjust_lon(lon + this.long0);
lat = adjust_lat(lat);
}
else {
lat = pj_inv_mlfn(p.y / this.a, this.es, this.en);
s = Math.abs(lat);
if (s < HALF_PI) {
s = Math.sin(lat);
temp = this.long0 + p.x * Math.sqrt(1 - this.es * s * s) / (this.a * Math.cos(lat));
//temp = this.long0 + p.x / (this.a * Math.cos(lat));
lon = adjust_lon(temp);
}
else if ((s - EPSLN) < HALF_PI) {
lon = this.long0;
}
}
p.x = lon;
p.y = lat;
return p;
}
var names$22 = ["Sinusoidal", "sinu"];
var sinu = {
init: init$21,
forward: forward$20,
inverse: inverse$20,
names: names$22
};
function init$22() {}
/* Mollweide forward equations--mapping lat,long to x,y
----------------------------------------------------*/
function forward$21(p) {
/* Forward equations
-----------------*/
var lon = p.x;
var lat = p.y;
var delta_lon = adjust_lon(lon - this.long0);
var theta = lat;
var con = Math.PI * Math.sin(lat);
/* Iterate using the Newton-Raphson method to find theta
-----------------------------------------------------*/
while (true) {
var delta_theta = -(theta + Math.sin(theta) - con) / (1 + Math.cos(theta));
theta += delta_theta;
if (Math.abs(delta_theta) < EPSLN) {
break;
}
}
theta /= 2;
/* If the latitude is 90 deg, force the x coordinate to be "0 + false easting"
this is done here because of precision problems with "cos(theta)"
--------------------------------------------------------------------------*/
if (Math.PI / 2 - Math.abs(lat) < EPSLN) {
delta_lon = 0;
}
var x = 0.900316316158 * this.a * delta_lon * Math.cos(theta) + this.x0;
var y = 1.4142135623731 * this.a * Math.sin(theta) + this.y0;
p.x = x;
p.y = y;
return p;
}
function inverse$21(p) {
var theta;
var arg;
/* Inverse equations
-----------------*/
p.x -= this.x0;
p.y -= this.y0;
arg = p.y / (1.4142135623731 * this.a);
/* Because of division by zero problems, 'arg' can not be 1. Therefore
a number very close to one is used instead.
-------------------------------------------------------------------*/
if (Math.abs(arg) > 0.999999999999) {
arg = 0.999999999999;
}
theta = Math.asin(arg);
var lon = adjust_lon(this.long0 + (p.x / (0.900316316158 * this.a * Math.cos(theta))));
if (lon < (-Math.PI)) {
lon = -Math.PI;
}
if (lon > Math.PI) {
lon = Math.PI;
}
arg = (2 * theta + Math.sin(2 * theta)) / Math.PI;
if (Math.abs(arg) > 1) {
arg = 1;
}
var lat = Math.asin(arg);
p.x = lon;
p.y = lat;
return p;
}
var names$23 = ["Mollweide", "moll"];
var moll = {
init: init$22,
forward: forward$21,
inverse: inverse$21,
names: names$23
};
function init$23() {
/* Place parameters in static storage for common use
-------------------------------------------------*/
// Standard Parallels cannot be equal and on opposite sides of the equator
if (Math.abs(this.lat1 + this.lat2) < EPSLN) {
return;
}
this.lat2 = this.lat2 || this.lat1;
this.temp = this.b / this.a;
this.es = 1 - Math.pow(this.temp, 2);
this.e = Math.sqrt(this.es);
this.e0 = e0fn(this.es);
this.e1 = e1fn(this.es);
this.e2 = e2fn(this.es);
this.e3 = e3fn(this.es);
this.sinphi = Math.sin(this.lat1);
this.cosphi = Math.cos(this.lat1);
this.ms1 = msfnz(this.e, this.sinphi, this.cosphi);
this.ml1 = mlfn(this.e0, this.e1, this.e2, this.e3, this.lat1);
if (Math.abs(this.lat1 - this.lat2) < EPSLN) {
this.ns = this.sinphi;
}
else {
this.sinphi = Math.sin(this.lat2);
this.cosphi = Math.cos(this.lat2);
this.ms2 = msfnz(this.e, this.sinphi, this.cosphi);
this.ml2 = mlfn(this.e0, this.e1, this.e2, this.e3, this.lat2);
this.ns = (this.ms1 - this.ms2) / (this.ml2 - this.ml1);
}
this.g = this.ml1 + this.ms1 / this.ns;
this.ml0 = mlfn(this.e0, this.e1, this.e2, this.e3, this.lat0);
this.rh = this.a * (this.g - this.ml0);
}
/* Equidistant Conic forward equations--mapping lat,long to x,y
-----------------------------------------------------------*/
function forward$22(p) {
var lon = p.x;
var lat = p.y;
var rh1;
/* Forward equations
-----------------*/
if (this.sphere) {
rh1 = this.a * (this.g - lat);
}
else {
var ml = mlfn(this.e0, this.e1, this.e2, this.e3, lat);
rh1 = this.a * (this.g - ml);
}
var theta = this.ns * adjust_lon(lon - this.long0);
var x = this.x0 + rh1 * Math.sin(theta);
var y = this.y0 + this.rh - rh1 * Math.cos(theta);
p.x = x;
p.y = y;
return p;
}
/* Inverse equations
-----------------*/
function inverse$22(p) {
p.x -= this.x0;
p.y = this.rh - p.y + this.y0;
var con, rh1, lat, lon;
if (this.ns >= 0) {
rh1 = Math.sqrt(p.x * p.x + p.y * p.y);
con = 1;
}
else {
rh1 = -Math.sqrt(p.x * p.x + p.y * p.y);
con = -1;
}
var theta = 0;
if (rh1 !== 0) {
theta = Math.atan2(con * p.x, con * p.y);
}
if (this.sphere) {
lon = adjust_lon(this.long0 + theta / this.ns);
lat = adjust_lat(this.g - rh1 / this.a);
p.x = lon;
p.y = lat;
return p;
}
else {
var ml = this.g - rh1 / this.a;
lat = imlfn(ml, this.e0, this.e1, this.e2, this.e3);
lon = adjust_lon(this.long0 + theta / this.ns);
p.x = lon;
p.y = lat;
return p;
}
}
var names$24 = ["Equidistant_Conic", "eqdc"];
var eqdc = {
init: init$23,
forward: forward$22,
inverse: inverse$22,
names: names$24
};
/* Initialize the Van Der Grinten projection
----------------------------------------*/
function init$24() {
//this.R = 6370997; //Radius of earth
this.R = this.a;
}
function forward$23(p) {
var lon = p.x;
var lat = p.y;
/* Forward equations
-----------------*/
var dlon = adjust_lon(lon - this.long0);
var x, y;
if (Math.abs(lat) <= EPSLN) {
x = this.x0 + this.R * dlon;
y = this.y0;
}
var theta = asinz(2 * Math.abs(lat / Math.PI));
if ((Math.abs(dlon) <= EPSLN) || (Math.abs(Math.abs(lat) - HALF_PI) <= EPSLN)) {
x = this.x0;
if (lat >= 0) {
y = this.y0 + Math.PI * this.R * Math.tan(0.5 * theta);
}
else {
y = this.y0 + Math.PI * this.R * -Math.tan(0.5 * theta);
}
// return(OK);
}
var al = 0.5 * Math.abs((Math.PI / dlon) - (dlon / Math.PI));
var asq = al * al;
var sinth = Math.sin(theta);
var costh = Math.cos(theta);
var g = costh / (sinth + costh - 1);
var gsq = g * g;
var m = g * (2 / sinth - 1);
var msq = m * m;
var con = Math.PI * this.R * (al * (g - msq) + Math.sqrt(asq * (g - msq) * (g - msq) - (msq + asq) * (gsq - msq))) / (msq + asq);
if (dlon < 0) {
con = -con;
}
x = this.x0 + con;
//con = Math.abs(con / (Math.PI * this.R));
var q = asq + g;
con = Math.PI * this.R * (m * q - al * Math.sqrt((msq + asq) * (asq + 1) - q * q)) / (msq + asq);
if (lat >= 0) {
//y = this.y0 + Math.PI * this.R * Math.sqrt(1 - con * con - 2 * al * con);
y = this.y0 + con;
}
else {
//y = this.y0 - Math.PI * this.R * Math.sqrt(1 - con * con - 2 * al * con);
y = this.y0 - con;
}
p.x = x;
p.y = y;
return p;
}
/* Van Der Grinten inverse equations--mapping x,y to lat/long
---------------------------------------------------------*/
function inverse$23(p) {
var lon, lat;
var xx, yy, xys, c1, c2, c3;
var a1;
var m1;
var con;
var th1;
var d;
/* inverse equations
-----------------*/
p.x -= this.x0;
p.y -= this.y0;
con = Math.PI * this.R;
xx = p.x / con;
yy = p.y / con;
xys = xx * xx + yy * yy;
c1 = -Math.abs(yy) * (1 + xys);
c2 = c1 - 2 * yy * yy + xx * xx;
c3 = -2 * c1 + 1 + 2 * yy * yy + xys * xys;
d = yy * yy / c3 + (2 * c2 * c2 * c2 / c3 / c3 / c3 - 9 * c1 * c2 / c3 / c3) / 27;
a1 = (c1 - c2 * c2 / 3 / c3) / c3;
m1 = 2 * Math.sqrt(-a1 / 3);
con = ((3 * d) / a1) / m1;
if (Math.abs(con) > 1) {
if (con >= 0) {
con = 1;
}
else {
con = -1;
}
}
th1 = Math.acos(con) / 3;
if (p.y >= 0) {
lat = (-m1 * Math.cos(th1 + Math.PI / 3) - c2 / 3 / c3) * Math.PI;
}
else {
lat = -(-m1 * Math.cos(th1 + Math.PI / 3) - c2 / 3 / c3) * Math.PI;
}
if (Math.abs(xx) < EPSLN) {
lon = this.long0;
}
else {
lon = adjust_lon(this.long0 + Math.PI * (xys - 1 + Math.sqrt(1 + 2 * (xx * xx - yy * yy) + xys * xys)) / 2 / xx);
}
p.x = lon;
p.y = lat;
return p;
}
var names$25 = ["Van_der_Grinten_I", "VanDerGrinten", "vandg"];
var vandg = {
init: init$24,
forward: forward$23,
inverse: inverse$23,
names: names$25
};
function init$25() {
this.sin_p12 = Math.sin(this.lat0);
this.cos_p12 = Math.cos(this.lat0);
}
function forward$24(p) {
var lon = p.x;
var lat = p.y;
var sinphi = Math.sin(p.y);
var cosphi = Math.cos(p.y);
var dlon = adjust_lon(lon - this.long0);
var e0, e1, e2, e3, Mlp, Ml, tanphi, Nl1, Nl, psi, Az, G, H, GH, Hs, c, kp, cos_c, s, s2, s3, s4, s5;
if (this.sphere) {
if (Math.abs(this.sin_p12 - 1) <= EPSLN) {
//North Pole case
p.x = this.x0 + this.a * (HALF_PI - lat) * Math.sin(dlon);
p.y = this.y0 - this.a * (HALF_PI - lat) * Math.cos(dlon);
return p;
}
else if (Math.abs(this.sin_p12 + 1) <= EPSLN) {
//South Pole case
p.x = this.x0 + this.a * (HALF_PI + lat) * Math.sin(dlon);
p.y = this.y0 + this.a * (HALF_PI + lat) * Math.cos(dlon);
return p;
}
else {
//default case
cos_c = this.sin_p12 * sinphi + this.cos_p12 * cosphi * Math.cos(dlon);
c = Math.acos(cos_c);
kp = c / Math.sin(c);
p.x = this.x0 + this.a * kp * cosphi * Math.sin(dlon);
p.y = this.y0 + this.a * kp * (this.cos_p12 * sinphi - this.sin_p12 * cosphi * Math.cos(dlon));
return p;
}
}
else {
e0 = e0fn(this.es);
e1 = e1fn(this.es);
e2 = e2fn(this.es);
e3 = e3fn(this.es);
if (Math.abs(this.sin_p12 - 1) <= EPSLN) {
//North Pole case
Mlp = this.a * mlfn(e0, e1, e2, e3, HALF_PI);
Ml = this.a * mlfn(e0, e1, e2, e3, lat);
p.x = this.x0 + (Mlp - Ml) * Math.sin(dlon);
p.y = this.y0 - (Mlp - Ml) * Math.cos(dlon);
return p;
}
else if (Math.abs(this.sin_p12 + 1) <= EPSLN) {
//South Pole case
Mlp = this.a * mlfn(e0, e1, e2, e3, HALF_PI);
Ml = this.a * mlfn(e0, e1, e2, e3, lat);
p.x = this.x0 + (Mlp + Ml) * Math.sin(dlon);
p.y = this.y0 + (Mlp + Ml) * Math.cos(dlon);
return p;
}
else {
//Default case
tanphi = sinphi / cosphi;
Nl1 = gN(this.a, this.e, this.sin_p12);
Nl = gN(this.a, this.e, sinphi);
psi = Math.atan((1 - this.es) * tanphi + this.es * Nl1 * this.sin_p12 / (Nl * cosphi));
Az = Math.atan2(Math.sin(dlon), this.cos_p12 * Math.tan(psi) - this.sin_p12 * Math.cos(dlon));
if (Az === 0) {
s = Math.asin(this.cos_p12 * Math.sin(psi) - this.sin_p12 * Math.cos(psi));
}
else if (Math.abs(Math.abs(Az) - Math.PI) <= EPSLN) {
s = -Math.asin(this.cos_p12 * Math.sin(psi) - this.sin_p12 * Math.cos(psi));
}
else {
s = Math.asin(Math.sin(dlon) * Math.cos(psi) / Math.sin(Az));
}
G = this.e * this.sin_p12 / Math.sqrt(1 - this.es);
H = this.e * this.cos_p12 * Math.cos(Az) / Math.sqrt(1 - this.es);
GH = G * H;
Hs = H * H;
s2 = s * s;
s3 = s2 * s;
s4 = s3 * s;
s5 = s4 * s;
c = Nl1 * s * (1 - s2 * Hs * (1 - Hs) / 6 + s3 / 8 * GH * (1 - 2 * Hs) + s4 / 120 * (Hs * (4 - 7 * Hs) - 3 * G * G * (1 - 7 * Hs)) - s5 / 48 * GH);
p.x = this.x0 + c * Math.sin(Az);
p.y = this.y0 + c * Math.cos(Az);
return p;
}
}
}
function inverse$24(p) {
p.x -= this.x0;
p.y -= this.y0;
var rh, z, sinz, cosz, lon, lat, con, e0, e1, e2, e3, Mlp, M, N1, psi, Az, cosAz, tmp, A, B, D, Ee, F;
if (this.sphere) {
rh = Math.sqrt(p.x * p.x + p.y * p.y);
if (rh > (2 * HALF_PI * this.a)) {
return;
}
z = rh / this.a;
sinz = Math.sin(z);
cosz = Math.cos(z);
lon = this.long0;
if (Math.abs(rh) <= EPSLN) {
lat = this.lat0;
}
else {
lat = asinz(cosz * this.sin_p12 + (p.y * sinz * this.cos_p12) / rh);
con = Math.abs(this.lat0) - HALF_PI;
if (Math.abs(con) <= EPSLN) {
if (this.lat0 >= 0) {
lon = adjust_lon(this.long0 + Math.atan2(p.x, - p.y));
}
else {
lon = adjust_lon(this.long0 - Math.atan2(-p.x, p.y));
}
}
else {
/*con = cosz - this.sin_p12 * Math.sin(lat);
if ((Math.abs(con) < EPSLN) && (Math.abs(p.x) < EPSLN)) {
//no-op, just keep the lon value as is
} else {
var temp = Math.atan2((p.x * sinz * this.cos_p12), (con * rh));
lon = adjust_lon(this.long0 + Math.atan2((p.x * sinz * this.cos_p12), (con * rh)));
}*/
lon = adjust_lon(this.long0 + Math.atan2(p.x * sinz, rh * this.cos_p12 * cosz - p.y * this.sin_p12 * sinz));
}
}
p.x = lon;
p.y = lat;
return p;
}
else {
e0 = e0fn(this.es);
e1 = e1fn(this.es);
e2 = e2fn(this.es);
e3 = e3fn(this.es);
if (Math.abs(this.sin_p12 - 1) <= EPSLN) {
//North pole case
Mlp = this.a * mlfn(e0, e1, e2, e3, HALF_PI);
rh = Math.sqrt(p.x * p.x + p.y * p.y);
M = Mlp - rh;
lat = imlfn(M / this.a, e0, e1, e2, e3);
lon = adjust_lon(this.long0 + Math.atan2(p.x, - 1 * p.y));
p.x = lon;
p.y = lat;
return p;
}
else if (Math.abs(this.sin_p12 + 1) <= EPSLN) {
//South pole case
Mlp = this.a * mlfn(e0, e1, e2, e3, HALF_PI);
rh = Math.sqrt(p.x * p.x + p.y * p.y);
M = rh - Mlp;
lat = imlfn(M / this.a, e0, e1, e2, e3);
lon = adjust_lon(this.long0 + Math.atan2(p.x, p.y));
p.x = lon;
p.y = lat;
return p;
}
else {
//default case
rh = Math.sqrt(p.x * p.x + p.y * p.y);
Az = Math.atan2(p.x, p.y);
N1 = gN(this.a, this.e, this.sin_p12);
cosAz = Math.cos(Az);
tmp = this.e * this.cos_p12 * cosAz;
A = -tmp * tmp / (1 - this.es);
B = 3 * this.es * (1 - A) * this.sin_p12 * this.cos_p12 * cosAz / (1 - this.es);
D = rh / N1;
Ee = D - A * (1 + A) * Math.pow(D, 3) / 6 - B * (1 + 3 * A) * Math.pow(D, 4) / 24;
F = 1 - A * Ee * Ee / 2 - D * Ee * Ee * Ee / 6;
psi = Math.asin(this.sin_p12 * Math.cos(Ee) + this.cos_p12 * Math.sin(Ee) * cosAz);
lon = adjust_lon(this.long0 + Math.asin(Math.sin(Az) * Math.sin(Ee) / Math.cos(psi)));
lat = Math.atan((1 - this.es * F * this.sin_p12 / Math.sin(psi)) * Math.tan(psi) / (1 - this.es));
p.x = lon;
p.y = lat;
return p;
}
}
}
var names$26 = ["Azimuthal_Equidistant", "aeqd"];
var aeqd = {
init: init$25,
forward: forward$24,
inverse: inverse$24,
names: names$26
};
function init$26() {
//double temp; /* temporary variable */
/* Place parameters in static storage for common use
-------------------------------------------------*/
this.sin_p14 = Math.sin(this.lat0);
this.cos_p14 = Math.cos(this.lat0);
}
/* Orthographic forward equations--mapping lat,long to x,y
---------------------------------------------------*/
function forward$25(p) {
var sinphi, cosphi; /* sin and cos value */
var dlon; /* delta longitude value */
var coslon; /* cos of longitude */
var ksp; /* scale factor */
var g, x, y;
var lon = p.x;
var lat = p.y;
/* Forward equations
-----------------*/
dlon = adjust_lon(lon - this.long0);
sinphi = Math.sin(lat);
cosphi = Math.cos(lat);
coslon = Math.cos(dlon);
g = this.sin_p14 * sinphi + this.cos_p14 * cosphi * coslon;
ksp = 1;
if ((g > 0) || (Math.abs(g) <= EPSLN)) {
x = this.a * ksp * cosphi * Math.sin(dlon);
y = this.y0 + this.a * ksp * (this.cos_p14 * sinphi - this.sin_p14 * cosphi * coslon);
}
p.x = x;
p.y = y;
return p;
}
function inverse$25(p) {
var rh; /* height above ellipsoid */
var z; /* angle */
var sinz, cosz; /* sin of z and cos of z */
var con;
var lon, lat;
/* Inverse equations
-----------------*/
p.x -= this.x0;
p.y -= this.y0;
rh = Math.sqrt(p.x * p.x + p.y * p.y);
z = asinz(rh / this.a);
sinz = Math.sin(z);
cosz = Math.cos(z);
lon = this.long0;
if (Math.abs(rh) <= EPSLN) {
lat = this.lat0;
p.x = lon;
p.y = lat;
return p;
}
lat = asinz(cosz * this.sin_p14 + (p.y * sinz * this.cos_p14) / rh);
con = Math.abs(this.lat0) - HALF_PI;
if (Math.abs(con) <= EPSLN) {
if (this.lat0 >= 0) {
lon = adjust_lon(this.long0 + Math.atan2(p.x, - p.y));
}
else {
lon = adjust_lon(this.long0 - Math.atan2(-p.x, p.y));
}
p.x = lon;
p.y = lat;
return p;
}
lon = adjust_lon(this.long0 + Math.atan2((p.x * sinz), rh * this.cos_p14 * cosz - p.y * this.sin_p14 * sinz));
p.x = lon;
p.y = lat;
return p;
}
var names$27 = ["ortho"];
var ortho = {
init: init$26,
forward: forward$25,
inverse: inverse$25,
names: names$27
};
// QSC projection rewritten from the original PROJ4
// https://github.com/OSGeo/proj.4/blob/master/src/PJ_qsc.c
/* constants */
var FACE_ENUM = {
FRONT: 1,
RIGHT: 2,
BACK: 3,
LEFT: 4,
TOP: 5,
BOTTOM: 6
};
var AREA_ENUM = {
AREA_0: 1,
AREA_1: 2,
AREA_2: 3,
AREA_3: 4
};
function init$27() {
this.x0 = this.x0 || 0;
this.y0 = this.y0 || 0;
this.lat0 = this.lat0 || 0;
this.long0 = this.long0 || 0;
this.lat_ts = this.lat_ts || 0;
this.title = this.title || "Quadrilateralized Spherical Cube";
/* Determine the cube face from the center of projection. */
if (this.lat0 >= HALF_PI - FORTPI / 2.0) {
this.face = FACE_ENUM.TOP;
} else if (this.lat0 <= -(HALF_PI - FORTPI / 2.0)) {
this.face = FACE_ENUM.BOTTOM;
} else if (Math.abs(this.long0) <= FORTPI) {
this.face = FACE_ENUM.FRONT;
} else if (Math.abs(this.long0) <= HALF_PI + FORTPI) {
this.face = this.long0 > 0.0 ? FACE_ENUM.RIGHT : FACE_ENUM.LEFT;
} else {
this.face = FACE_ENUM.BACK;
}
/* Fill in useful values for the ellipsoid <-> sphere shift
* described in [LK12]. */
if (this.es !== 0) {
this.one_minus_f = 1 - (this.a - this.b) / this.a;
this.one_minus_f_squared = this.one_minus_f * this.one_minus_f;
}
}
// QSC forward equations--mapping lat,long to x,y
// -----------------------------------------------------------------
function forward$26(p) {
var xy = {x: 0, y: 0};
var lat, lon;
var theta, phi;
var t, mu;
/* nu; */
var area = {value: 0};
// move lon according to projection's lon
p.x -= this.long0;
/* Convert the geodetic latitude to a geocentric latitude.
* This corresponds to the shift from the ellipsoid to the sphere
* described in [LK12]. */
if (this.es !== 0) {//if (P->es != 0) {
lat = Math.atan(this.one_minus_f_squared * Math.tan(p.y));
} else {
lat = p.y;
}
/* Convert the input lat, lon into theta, phi as used by QSC.
* This depends on the cube face and the area on it.
* For the top and bottom face, we can compute theta and phi
* directly from phi, lam. For the other faces, we must use
* unit sphere cartesian coordinates as an intermediate step. */
lon = p.x; //lon = lp.lam;
if (this.face === FACE_ENUM.TOP) {
phi = HALF_PI - lat;
if (lon >= FORTPI && lon <= HALF_PI + FORTPI) {
area.value = AREA_ENUM.AREA_0;
theta = lon - HALF_PI;
} else if (lon > HALF_PI + FORTPI || lon <= -(HALF_PI + FORTPI)) {
area.value = AREA_ENUM.AREA_1;
theta = (lon > 0.0 ? lon - SPI : lon + SPI);
} else if (lon > -(HALF_PI + FORTPI) && lon <= -FORTPI) {
area.value = AREA_ENUM.AREA_2;
theta = lon + HALF_PI;
} else {
area.value = AREA_ENUM.AREA_3;
theta = lon;
}
} else if (this.face === FACE_ENUM.BOTTOM) {
phi = HALF_PI + lat;
if (lon >= FORTPI && lon <= HALF_PI + FORTPI) {
area.value = AREA_ENUM.AREA_0;
theta = -lon + HALF_PI;
} else if (lon < FORTPI && lon >= -FORTPI) {
area.value = AREA_ENUM.AREA_1;
theta = -lon;
} else if (lon < -FORTPI && lon >= -(HALF_PI + FORTPI)) {
area.value = AREA_ENUM.AREA_2;
theta = -lon - HALF_PI;
} else {
area.value = AREA_ENUM.AREA_3;
theta = (lon > 0.0 ? -lon + SPI : -lon - SPI);
}
} else {
var q, r, s;
var sinlat, coslat;
var sinlon, coslon;
if (this.face === FACE_ENUM.RIGHT) {
lon = qsc_shift_lon_origin(lon, +HALF_PI);
} else if (this.face === FACE_ENUM.BACK) {
lon = qsc_shift_lon_origin(lon, +SPI);
} else if (this.face === FACE_ENUM.LEFT) {
lon = qsc_shift_lon_origin(lon, -HALF_PI);
}
sinlat = Math.sin(lat);
coslat = Math.cos(lat);
sinlon = Math.sin(lon);
coslon = Math.cos(lon);
q = coslat * coslon;
r = coslat * sinlon;
s = sinlat;
if (this.face === FACE_ENUM.FRONT) {
phi = Math.acos(q);
theta = qsc_fwd_equat_face_theta(phi, s, r, area);
} else if (this.face === FACE_ENUM.RIGHT) {
phi = Math.acos(r);
theta = qsc_fwd_equat_face_theta(phi, s, -q, area);
} else if (this.face === FACE_ENUM.BACK) {
phi = Math.acos(-q);
theta = qsc_fwd_equat_face_theta(phi, s, -r, area);
} else if (this.face === FACE_ENUM.LEFT) {
phi = Math.acos(-r);
theta = qsc_fwd_equat_face_theta(phi, s, q, area);
} else {
/* Impossible */
phi = theta = 0;
area.value = AREA_ENUM.AREA_0;
}
}
/* Compute mu and nu for the area of definition.
* For mu, see Eq. (3-21) in [OL76], but note the typos:
* compare with Eq. (3-14). For nu, see Eq. (3-38). */
mu = Math.atan((12 / SPI) * (theta + Math.acos(Math.sin(theta) * Math.cos(FORTPI)) - HALF_PI));
t = Math.sqrt((1 - Math.cos(phi)) / (Math.cos(mu) * Math.cos(mu)) / (1 - Math.cos(Math.atan(1 / Math.cos(theta)))));
/* Apply the result to the real area. */
if (area.value === AREA_ENUM.AREA_1) {
mu += HALF_PI;
} else if (area.value === AREA_ENUM.AREA_2) {
mu += SPI;
} else if (area.value === AREA_ENUM.AREA_3) {
mu += 1.5 * SPI;
}
/* Now compute x, y from mu and nu */
xy.x = t * Math.cos(mu);
xy.y = t * Math.sin(mu);
xy.x = xy.x * this.a + this.x0;
xy.y = xy.y * this.a + this.y0;
p.x = xy.x;
p.y = xy.y;
return p;
}
// QSC inverse equations--mapping x,y to lat/long
// -----------------------------------------------------------------
function inverse$26(p) {
var lp = {lam: 0, phi: 0};
var mu, nu, cosmu, tannu;
var tantheta, theta, cosphi, phi;
var t;
var area = {value: 0};
/* de-offset */
p.x = (p.x - this.x0) / this.a;
p.y = (p.y - this.y0) / this.a;
/* Convert the input x, y to the mu and nu angles as used by QSC.
* This depends on the area of the cube face. */
nu = Math.atan(Math.sqrt(p.x * p.x + p.y * p.y));
mu = Math.atan2(p.y, p.x);
if (p.x >= 0.0 && p.x >= Math.abs(p.y)) {
area.value = AREA_ENUM.AREA_0;
} else if (p.y >= 0.0 && p.y >= Math.abs(p.x)) {
area.value = AREA_ENUM.AREA_1;
mu -= HALF_PI;
} else if (p.x < 0.0 && -p.x >= Math.abs(p.y)) {
area.value = AREA_ENUM.AREA_2;
mu = (mu < 0.0 ? mu + SPI : mu - SPI);
} else {
area.value = AREA_ENUM.AREA_3;
mu += HALF_PI;
}
/* Compute phi and theta for the area of definition.
* The inverse projection is not described in the original paper, but some
* good hints can be found here (as of 2011-12-14):
* http://fits.gsfc.nasa.gov/fitsbits/saf.93/saf.9302
* (search for "Message-Id: <9302181759.AA25477 at fits.cv.nrao.edu>") */
t = (SPI / 12) * Math.tan(mu);
tantheta = Math.sin(t) / (Math.cos(t) - (1 / Math.sqrt(2)));
theta = Math.atan(tantheta);
cosmu = Math.cos(mu);
tannu = Math.tan(nu);
cosphi = 1 - cosmu * cosmu * tannu * tannu * (1 - Math.cos(Math.atan(1 / Math.cos(theta))));
if (cosphi < -1) {
cosphi = -1;
} else if (cosphi > +1) {
cosphi = +1;
}
/* Apply the result to the real area on the cube face.
* For the top and bottom face, we can compute phi and lam directly.
* For the other faces, we must use unit sphere cartesian coordinates
* as an intermediate step. */
if (this.face === FACE_ENUM.TOP) {
phi = Math.acos(cosphi);
lp.phi = HALF_PI - phi;
if (area.value === AREA_ENUM.AREA_0) {
lp.lam = theta + HALF_PI;
} else if (area.value === AREA_ENUM.AREA_1) {
lp.lam = (theta < 0.0 ? theta + SPI : theta - SPI);
} else if (area.value === AREA_ENUM.AREA_2) {
lp.lam = theta - HALF_PI;
} else /* area.value == AREA_ENUM.AREA_3 */ {
lp.lam = theta;
}
} else if (this.face === FACE_ENUM.BOTTOM) {
phi = Math.acos(cosphi);
lp.phi = phi - HALF_PI;
if (area.value === AREA_ENUM.AREA_0) {
lp.lam = -theta + HALF_PI;
} else if (area.value === AREA_ENUM.AREA_1) {
lp.lam = -theta;
} else if (area.value === AREA_ENUM.AREA_2) {
lp.lam = -theta - HALF_PI;
} else /* area.value == AREA_ENUM.AREA_3 */ {
lp.lam = (theta < 0.0 ? -theta - SPI : -theta + SPI);
}
} else {
/* Compute phi and lam via cartesian unit sphere coordinates. */
var q, r, s;
q = cosphi;
t = q * q;
if (t >= 1) {
s = 0;
} else {
s = Math.sqrt(1 - t) * Math.sin(theta);
}
t += s * s;
if (t >= 1) {
r = 0;
} else {
r = Math.sqrt(1 - t);
}
/* Rotate q,r,s into the correct area. */
if (area.value === AREA_ENUM.AREA_1) {
t = r;
r = -s;
s = t;
} else if (area.value === AREA_ENUM.AREA_2) {
r = -r;
s = -s;
} else if (area.value === AREA_ENUM.AREA_3) {
t = r;
r = s;
s = -t;
}
/* Rotate q,r,s into the correct cube face. */
if (this.face === FACE_ENUM.RIGHT) {
t = q;
q = -r;
r = t;
} else if (this.face === FACE_ENUM.BACK) {
q = -q;
r = -r;
} else if (this.face === FACE_ENUM.LEFT) {
t = q;
q = r;
r = -t;
}
/* Now compute phi and lam from the unit sphere coordinates. */
lp.phi = Math.acos(-s) - HALF_PI;
lp.lam = Math.atan2(r, q);
if (this.face === FACE_ENUM.RIGHT) {
lp.lam = qsc_shift_lon_origin(lp.lam, -HALF_PI);
} else if (this.face === FACE_ENUM.BACK) {
lp.lam = qsc_shift_lon_origin(lp.lam, -SPI);
} else if (this.face === FACE_ENUM.LEFT) {
lp.lam = qsc_shift_lon_origin(lp.lam, +HALF_PI);
}
}
/* Apply the shift from the sphere to the ellipsoid as described
* in [LK12]. */
if (this.es !== 0) {
var invert_sign;
var tanphi, xa;
invert_sign = (lp.phi < 0 ? 1 : 0);
tanphi = Math.tan(lp.phi);
xa = this.b / Math.sqrt(tanphi * tanphi + this.one_minus_f_squared);
lp.phi = Math.atan(Math.sqrt(this.a * this.a - xa * xa) / (this.one_minus_f * xa));
if (invert_sign) {
lp.phi = -lp.phi;
}
}
lp.lam += this.long0;
p.x = lp.lam;
p.y = lp.phi;
return p;
}
/* Helper function for forward projection: compute the theta angle
* and determine the area number. */
function qsc_fwd_equat_face_theta(phi, y, x, area) {
var theta;
if (phi < EPSLN) {
area.value = AREA_ENUM.AREA_0;
theta = 0.0;
} else {
theta = Math.atan2(y, x);
if (Math.abs(theta) <= FORTPI) {
area.value = AREA_ENUM.AREA_0;
} else if (theta > FORTPI && theta <= HALF_PI + FORTPI) {
area.value = AREA_ENUM.AREA_1;
theta -= HALF_PI;
} else if (theta > HALF_PI + FORTPI || theta <= -(HALF_PI + FORTPI)) {
area.value = AREA_ENUM.AREA_2;
theta = (theta >= 0.0 ? theta - SPI : theta + SPI);
} else {
area.value = AREA_ENUM.AREA_3;
theta += HALF_PI;
}
}
return theta;
}
/* Helper function: shift the longitude. */
function qsc_shift_lon_origin(lon, offset) {
var slon = lon + offset;
if (slon < -SPI) {
slon += TWO_PI;
} else if (slon > +SPI) {
slon -= TWO_PI;
}
return slon;
}
var names$28 = ["Quadrilateralized Spherical Cube", "Quadrilateralized_Spherical_Cube", "qsc"];
var qsc = {
init: init$27,
forward: forward$26,
inverse: inverse$26,
names: names$28
};
var includedProjections = function(proj4){
proj4.Proj.projections.add(tmerc);
proj4.Proj.projections.add(etmerc);
proj4.Proj.projections.add(utm);
proj4.Proj.projections.add(sterea);
proj4.Proj.projections.add(stere);
proj4.Proj.projections.add(somerc);
proj4.Proj.projections.add(omerc);
proj4.Proj.projections.add(lcc);
proj4.Proj.projections.add(krovak);
proj4.Proj.projections.add(cass);
proj4.Proj.projections.add(laea);
proj4.Proj.projections.add(aea);
proj4.Proj.projections.add(gnom);
proj4.Proj.projections.add(cea);
proj4.Proj.projections.add(eqc);
proj4.Proj.projections.add(poly);
proj4.Proj.projections.add(nzmg);
proj4.Proj.projections.add(mill);
proj4.Proj.projections.add(sinu);
proj4.Proj.projections.add(moll);
proj4.Proj.projections.add(eqdc);
proj4.Proj.projections.add(vandg);
proj4.Proj.projections.add(aeqd);
proj4.Proj.projections.add(ortho);
proj4.Proj.projections.add(qsc);
};
proj4$1.defaultDatum = 'WGS84'; //default datum
proj4$1.Proj = Projection$1;
proj4$1.WGS84 = new proj4$1.Proj('WGS84');
proj4$1.Point = Point;
proj4$1.toPoint = toPoint;
proj4$1.defs = defs;
proj4$1.transform = transform;
proj4$1.mgrs = mgrs;
proj4$1.version = version;
includedProjections(proj4$1);
return proj4$1;
})));
/// <reference path="../../ThirdParty/Cesium/Cesium.js" />
/// <reference path="turf-bbox-clip.js" />
define('VectorRenderer/VectorRenderer',[
'Util/turf',
"Util/Shp",
//'Data/Geojson/geoJSONParser',
'Data/Geojson/LonLatProjection',
'Util/Path',
'VectorRenderer/VectorStyle',
'VectorRenderer/VectorLayer',
'ThirdParty/proj4/dist/proj4-src'
], function (
turf,
shp,
//geoJSONParser,
LonLatProjection,
Path,
VectorStyle,
VectorLayer
,proj4
) {
/**
*矢量渲染器，支持esri shapefile、geojson文件，也可以直接加载geojson对象或MeteoLib.Contour.Polygon、MeteoLib.Contour.Polyline集合
*@param {Object}options 参数如下：
*@param {Object}options.width
*@param {Object}options.height
*@param {Cesium.VectorLayer|String|turf.FeatureCollection|Object|Array<Cesium.VectorLayer>|Array<String>|Array<turf.FeatureCollection>|Array<Object>}options.layers 矢量文件url(数组)或者geojson对象(数组)
*@param {Boolean}[options.fitExtent=true]
*@param {Boolean}[options.resizable=true],
*@param {String} [options.prj]
*@constructor
*@memberof Cesium
*@example
var defaultStyle = new VectorStyle({
outlineColor: Cesium.Color.BLACK,
fill: true,
});
var shengjieLayer = new VectorLayer({
source: appConfig.BaseURL + "Assets/Shp/L_shengjie.shp",
style: defaultStyle
});
var chinaLayer = new VectorLayer({
source: appConfig.BaseURL + "Assets/Shp/china.shp",
style: defaultStyle
});
var vectorRenderer = new VectorRenderer({
layers: [
chinaLayer,
shengjieLayer
],
width: 1024,
height: 512,
//fitExtent: false,
resizable:true
});
Cesium.when(vectorRenderer.readyPromise, function () {
vectorRenderer.addLayer(chinaLayer);
var canvas = vectorRenderer.render(vectorRenderer.rectangle);
document.getElementById("cesiumContainer").appendChild(canvas);
}, function (err) {
console.log(err);
})
*/
function VectorRenderer(options) {
///@param {Boolean}[options.multipleTask=true] 是否使用多个VectorRenderer实例，使用多个实例是设置该参数为true可以提高ui响应速度，使用唯一一个实例时设置该参数为false则可以提高切片速度。
//@param {Boolean}[options.taskWaitTime=10] 使用多个实例时，每个实例的切片任务延迟结束的时间，以此来避免多个矢量图层同时存在时出现某个图层一直更新而其他图层一直没有更新的bug
options = Cesium.defaultValue(options, Cesium.defaultValue.EMPTY_OBJECT);
if (!Cesium.defined(options.layers)) {
throw new Cesium.DeveloperError("缺少参数layers。");
}
if (!Cesium.isArray(options.layers)) {
options.layers = [options.layers];
}
this._width = Cesium.defaultValue(options.width, 512);
this._height = Cesium.defaultValue(options.height, 512);
this._backColor = Cesium.defaultValue(options.backColor, Cesium.Color.fromBytes(0, 0, 0, 0));
if (typeof this._backColor == 'string') {
this._backColor = Cesium.Color.fromCssColorString(this._backColor);
}
this._prj = options.prj;
this._fitExtent = Cesium.defaultValue(options.fitExtent, true);
this._resizable = Cesium.defaultValue(options.resizable, true);
this._readyPromise = Cesium.when.defer();
this._ready = false;
this._rectangle = null;
this._boundingRectangle = null;
this._layers = [];
var promises = [];
for (var i = 0; i < options.layers.length; i++) {
var layer = options.layers[i];
if (!(layer instanceof VectorLayer)) {
layer = new VectorLayer({
source: layer
});
}
promises.push(layer.readyPromise);
this._layers.push(layer);
}
var that = this;
Cesium.when.all(promises, function () {
if (that._layers && that._layers.length && that._layers.length > 0) {
that._rectangle = that._layers[0].rectangle;
for (var i = 1; i < that._layers.length; i++) {
that._rectangle = Cesium.Rectangle.union(that._layers[i].rectangle, that._rectangle)
}
that.computeBBox();
}
that._ready = true;
that._readyPromise.resolve(that);
}, function (err) {
console.log(err);
that._readyPromise.reject(err);
});
}
Cesium.defineProperties(VectorRenderer.prototype, {
prj: {
get: function () {
return this._prj;
},
set: function (val) {
this._prj = val;
if (this._ready) {
this.computeBBox();
}
}
},
width: {
get: function () {
return this._width;
},
set: function (val) {
this._width = val;
}
},
height: {
get: function () {
return this._height;
},
set: function (val) {
this._height = val;
}
},
boundingRectangle: {
get: function () {
return this._boundingRectangle;
}
},
rectangle: {
get: function () {
return this._rectangle;
}
},
ready: {
get: function () {
return this._ready;
}
},
readyPromise: {
get: function () {
return this._readyPromise;
}
}
});
var cartesian2 = new Cesium.Cartesian2();
/**
*
* @param {Number} lon
* @param {Number} lat
* @param {Cesium.Cartesian2} result
*/
VectorRenderer.prototype.transform = function (coords, result, prjSettings) {
if (this._prj && proj4)
coords = proj4(this._prj, coords);
var x = prjSettings.width * (coords[0] - this._boundingRectangle.x) / this._boundingRectangle.width;
var y = prjSettings.height * (coords[1] - this._boundingRectangle.y) / this._boundingRectangle.height;
if (!result) {
return new Cesium.Cartesian2(x, y);
}
result.x = x;
result.y = y;
return result;
}
/**
*
* @param {Cesium.Rectangle} rectangle
* @private
*/
VectorRenderer.prototype.computeBBox = function (rectangle) {
if (!rectangle) {
rectangle = this._rectangle;
}
if (!this._boundingRectangle) {
this._boundingRectangle = new Cesium.BoundingRectangle();
}
//else {
// if (Cesium.Rectangle.equals(this._rectangle, rectangle)) {
// return;
// }
//}
if (!this._prj || !proj4) {
this._boundingRectangle.x = Cesium.Math.toDegrees(rectangle.west),
this._boundingRectangle.y = Cesium.Math.toDegrees(rectangle.north),
this._boundingRectangle.width = Cesium.Math.toDegrees(rectangle.east - rectangle.west),
this._boundingRectangle.height = Cesium.Math.toDegrees(rectangle.south - rectangle.north);
} else {
var lonlats = [
[Cesium.Math.toDegrees(rectangle.west), Cesium.Math.toDegrees(rectangle.north)],
[Cesium.Math.toDegrees(rectangle.west), Cesium.Math.toDegrees(rectangle.south)],
[Cesium.Math.toDegrees(rectangle.east), Cesium.Math.toDegrees(rectangle.south)],
[Cesium.Math.toDegrees(rectangle.east), Cesium.Math.toDegrees(rectangle.north)]
];
var coords;
var west = Number.MAX_VALUE, south = Number.MAX_VALUE,
east = -Number.MAX_VALUE, north = -Number.MAX_VALUE
for (var i = 0; i < lonlats.length; i++) {
coords = proj4(this._prj, lonlats[i]);
west = Math.min(coords[0], west);
south = Math.min(coords[1], south);
east = Math.max(coords[0], east);
north = Math.max(coords[1], north);
}
this._boundingRectangle.x = west,
this._boundingRectangle.y = north,
this._boundingRectangle.width = east - west,
this._boundingRectangle.height = south - north;
}
}
/**
*
*@param {Cesium.VectorLayer} layer
*/
VectorRenderer.prototype.addLayer = function (layer) {
var that = this;
if (layer.ready) {
that._layers.push(layer);
if (that._layers && that._layers.length && that._layers.length > 0) {
that._rectangle = that._layers[0].rectangle;
for (var i = 1; i < that._layers.length; i++) {
that._rectangle = Cesium.Rectangle.union(that._layers[i].rectangle, that._rectangle)
}
}
this.computeBBox();
} else {
Cesium.when(layer.readyPromise, function () {
that._layers.push(layer);
if (that._layers && that._layers.length && that._layers.length > 0) {
that._rectangle = that._layers[0].rectangle;
for (var i = 1; i < that._layers.length; i++) {
that._rectangle = Cesium.Rectangle.union(that._layers[i].rectangle, that._rectangle)
}
}
that.computeBBox();
}, function (err) {
console.log(err);
})
}
}
VectorRenderer.prototype._getDefaultCanvas = function (width, height) {
if (!this._canvas) {
this._canvas = document.createElement("canvas");
}
this._canvas.width = width;
this._canvas.height = height;
this._context = this._canvas.getContext("2d");
this._context.fillStyle = this._backColor instanceof Cesium.Color ? this._backColor.toCssColorString() : this._backColor;
this._context.fillRect(0, 0, width, height);
}
VectorRenderer.prototype._setStyle = function (canvas, style) {
var context = canvas.getContext("2d");
context.lineWidth = style.lineWidth;
context.strokeStyle = style.outlineColor instanceof Cesium.Color ? style.outlineColor.toCssColorString() : style.outlineColor;
context.fillStyle = style.fillColor instanceof Cesium.Color ? style.fillColor.toCssColorString() : style.fillColor;
}
var isWorking = false;
//用当前瓦片（Tile）矩形裁剪geojson并返回裁剪结果
VectorRenderer.prototype._clipGeojson = function (layer, rectangle) {
var that = this;
var bbox = [Cesium.Math.toDegrees(rectangle.west),
Cesium.Math.toDegrees(rectangle.south),
Cesium.Math.toDegrees(rectangle.east),
Cesium.Math.toDegrees(rectangle.north)];
var poly = turf.polygon([[
[bbox[0], bbox[1]],//sw
[bbox[2], bbox[1]],//se
[bbox[2], bbox[3]],//ne
[bbox[0], bbox[3]],//nw
[bbox[0], bbox[1]],//sw
]]);
poly = turf.featureCollection([poly]);
var features = [];
if (layer.points) {
var pts = turf.within(layer.points, poly);
features = features.concat(pts.features);
}
var canClipGeojsons = [];
if (layer.lines) {
canClipGeojsons.push(layer.lines);
}
if (layer.outlines) {
canClipGeojsons.push(layer.outlines);
}
if (layer.polygons) {
canClipGeojsons.push(layer.polygons);
}
canClipGeojsons.forEach(function (geojson) {
turf.featureEach(geojson, function (currentFeature, currentIndex) {
var clipped;
try {
clipped = turf.bboxClip(currentFeature, bbox);
if (clipped && clipped.geometry.coordinates.length > 0) {
features.push(clipped);
}
} catch (e) {
var coordinates = [];
currentFeature.geometry.coordinates.forEach(function (contour) {
if (contour.length > 3) {
coordinates.push(contour);
}
})
currentFeature.geometry.coordinates = coordinates;
clipped = turf.bboxClip(currentFeature, bbox);
if (clipped && clipped.geometry.coordinates.length > 0) {
features.push(clipped);
}
}
})
})
features = turf.featureCollection(features);
return features;
}
//绘制多边形（面或线）
function drawContours(context, projection, prjSettings, x, y, contours, fill, stroke) {
contours.map(function (contour) {
var pointIndex = 0;
context.beginPath();
contour.map(function (coordinate) {
var pt = projection.transform(coordinate, cartesian2, prjSettings); //projection.project(coordinate, boundingRect)
if (pointIndex == 0) {
context.moveTo(x + pt.x, y + pt.y);
} else {
context.lineTo(x + pt.x, y + pt.y);
}
pointIndex++;
})
if (stroke) {
context.stroke();
}
if (fill) {
context.fill();
}
})
}
//画点
function drawMarker(context, projection, prjSettings, x, y, pointFeature, fill, stroke, labelPropertyName, makerStyle) {
if (typeof labelPropertyName == 'undefined') {
labelPropertyName = "NAME";
}
var style = Object.assign({
pointSize: 3,
fontSize: 9,
fontFamily: 'courier',
color: 'rgb(0,0,0)',
backgroundColor: 'rgb(255,0,0)',
pointStyle: "Solid",//'Solid','Ring','Circle'
ringRadius: 2,
circleLineWidth: 1,
showMaker: true,
showLabel: true,
labelOffsetX: 0.0,
labelOffsetY: 0.0,
markerSymbol: undefined
}, makerStyle);
context.font = style.fontSize + 'px ' + style.fontFamily + ' bold'
var pt = projection.transform(pointFeature.geometry.coordinates, cartesian2, prjSettings); //projection.project(pointFeature.geometry.coordinates, boundingRect)
if (style.showMaker) {
var px = pt.x + x,
py = pt.y + y;
if (px + style.pointSize > context.canvas.width) {
px -= style.pointSize * 2;
}
if (px >= 0 && px - style.pointSize <= 0) {
px += style.pointSize;
}
if (py + style.pointSize > context.canvas.width) {
py -= style.pointSize * 2;
}
if (py >= 0 && py - style.pointSize <= 0) {
py += style.pointSize;
}
if (style.markerSymbol && style.markerSymbol instanceof Image) {
if (px - style.markerSymbol.width / 2 < 0) {
px += style.markerSymbol.width / 2;
}
if (py - style.markerSymbol.width / 2 < 0) {
py += style.markerSymbol.width / 2;
}
if (px + style.markerSymbol.width / 2 > context.canvas.width) {
px -= style.markerSymbol.width / 2;
}
if (py + style.markerSymbol.width / 2 > context.canvas.height) {
py -= style.markerSymbol.width / 2;
}
context.drawImage(style.markerSymbol, px, py);//, style.pointSize, style.pointSize);
} else {
context.fillStyle = style.backgroundColor
context.beginPath();
context.arc(px, py, style.pointSize, 0, Math.PI * 2);
if (style.pointStyle == 'Solid') {
context.fill();
}
else if (style.pointStyle == 'Circle') {
context.lineWidth = style.circleLineWidth;
context.strokeStyle = style.backgroundColor
context.stroke();
} else if (style.pointStyle == 'Ring') {
context.strokeStyle = style.backgroundColor
context.stroke();
context.beginPath();
context.arc(px, py, style.ringRadius, 0, Math.PI * 2);
context.closePath();
context.fill();
}
}
}
if (style.showLabel) {
if (typeof pointFeature.properties[labelPropertyName] === 'string') {
context.fillStyle = style.color;
var px = pt.x + x + style.labelOffsetX + 4,
py = pt.y + y + style.labelOffsetY + style.fontSize / 2;
var text = pointFeature.properties[labelPropertyName];
if (text) {
text = text.trim();
var textWidth = context.measureText(text).width;
if (px + textWidth > context.canvas.width) {
px -= (textWidth + style.pointSize + 6);
}
if (py + style.fontSize > context.canvas.height) {
py -= style.labelOffsetY + style.fontSize / 2;
}
context.fillText(text, px, py);
}
}
}
context.restore();
}
/**
*
*@param {Number}x
*@param {Number}y
*@param {Object}geojson
*@param {Object}prjSettings
*@param {Number}width
*@param {Number}height
*@param {Cesium.VectorRenderer.VectorStyle}[style=undefined]
*@private
*/
VectorRenderer.prototype._drawGeojson = function (context, x, y, geojson, prjSettings, width, height, style) {//fill, stroke) {
var that = this;
if (typeof style.fill == 'undefined') {
style.fill = true;
}
if (typeof style.stroke == 'undefined') {
style.stroke = true;
}
if (!style.fill && !style.stroke) {
return undefined;
}
if (typeof width == 'undefined') {
width = context.canvas.width - x;
}
if (typeof height == 'undefined') {
height = context.canvas.height - y;
}
//var projection = new LonLatProjection(width, height);
prjSettings = { width: width, height: height };
var makerStyle = {
pointSize: style.pointSize,
fontSize: style.fontSize,
fontFamily: style.fontFamily,
color: style.fontColor.toCssColorString(),
backgroundColor: style.pointColor.toCssColorString(),
pointStyle: style.pointStyle,//'Solid','Ring','Circle'
ringRadius: style.ringRadius,
circleLineWidth: style.circleLineWidth,
showMaker: style.showMaker,
showLabel: style.showLabel,
labelOffsetX: style.labelOffsetX,
labelOffsetY: style.labelOffsetY,
markerSymbol: style.makerImageEl
}
turf.featureEach(geojson, function (currentFeature, currentFeatureIndex) {
if (currentFeature.geometry.type == "Point") {
drawMarker(context, that, prjSettings, x, y, currentFeature, style.fill, style.stroke, this._labelPropertyName, makerStyle);
context.lineWidth = that._lineWidth;
context.strokeStyle = that._outlineColor.toCssColorString();// "rgb(255,255,0)";
context.fillStyle = that._fillColor.toCssColorString();// "rgba(0,255,255,0.0)";
}
else if (currentFeature.geometry.type == "Polygon" && style.fill) {
var contours = turf.getCoords(currentFeature);
drawContours(context, that, prjSettings, x, y, contours, true, false);
} else if (currentFeature.geometry.type == "MultiPolygon" && style.fill) {
var polygons;
try {
polygons = turf.getCoords(currentFeature);
polygons.map(function (contours) {
drawContours(context, that, prjSettings, x, y, contours, true, false);
})
} catch (e) {
// console.log(e);
}
} else if (currentFeature.geometry.type == "MultiLineString") {
var contours = turf.getCoords(currentFeature);
drawContours(context, that, prjSettings, x, y, contours, false, true);
}
else if (currentFeature.geometry.type == "LineString") {
var contour = turf.getCoords(currentFeature);
var pointIndex = 0;
context.beginPath();
contour.map(function (coordinate) {
var pt = that.transform(coordinate, cartesian2, prjSettings); //projection.project(coordinate, boundingRect)
if (pointIndex == 0) {
context.moveTo(x + pt.x, y + pt.y);
} else {
context.lineTo(x + pt.x, y + pt.y);
}
pointIndex++;
})
context.stroke();
}
})
}
/**
*
*渲染rectangle所指定范围的矢量，默认按所给矢量的最大范围渲染
@param {Cesium.Rectangle}[rectangle=undefined] 默认为所有给定矢量图层的最大范围
@param {Canvas}[canvas]
@return {Canvas}
*/
VectorRenderer.prototype.render = function (rectangle) {
if (!rectangle) {
rectangle = this._rectangle;
}
this.computeBBox(rectangle);
var that = this;
var boundingRect = null;// {
// xMin: Cesium.Math.toDegrees(rectangle.west),
// yMin: Cesium.Math.toDegrees(rectangle.south),
// xMax: Cesium.Math.toDegrees(rectangle.east),
// yMax: Cesium.Math.toDegrees(rectangle.north)
//};
var projWidth = this._width > this._height ? this._width : this._height, projHeight = projWidth;
var canvasWidth = this._width, canvasHeight = this._height;
if (that._resizable) {
var scaleX = 1, scaleY = 1;
var geoWidth = this._boundingRectangle.width; //(boundingRect.xMax - boundingRect.xMin);
var geoHeight = Math.abs(this._boundingRectangle.height);//(boundingRect.yMax - boundingRect.yMin);
if (geoWidth < geoHeight) {
scaleX = parseFloat(geoWidth) / parseFloat(geoHeight);
projWidth = parseInt(projWidth * scaleX);
} else {
scaleY = parseFloat(geoHeight) / parseFloat(geoWidth);
projHeight = parseInt(projHeight * scaleY);
}
if (that._fitExtent) {
canvasWidth = projWidth;
canvasHeight = projHeight;
}
}
this._getDefaultCanvas(canvasWidth, canvasHeight);
var that = this;
this._layers.forEach(function (layer) {
var clippedGeojson = that._clipGeojson(layer, rectangle);
if (clippedGeojson) {
that._setStyle(that._canvas, layer.style);
var context = that._canvas.getContext("2d");
that._drawGeojson(context, 0, 0, clippedGeojson, boundingRect, projWidth, projHeight, layer.style);
}
});
return this._canvas;
}
return VectorRenderer;
});
define('VectorTileImageryProvider/VectorTileImageryProvider',[
'Util/turf',
"Util/Shp",
'Data/Geojson/LonLatProjection',
'Util/Path',
//'Util/Contour/PolyLine',
//'Util/Contour/Polygon',
'VectorRenderer/VectorStyle'
], function(
turf,
shp,
LonLatProjection,
Path,
//PolyLine,
//Polygon,
VectorStyle
) {
if (Cesium.Resource) {
Cesium.loadText = Cesium.Resource.fetchText;
Cesium.loadJson = Cesium.Resource.fetchJson;
Cesium.loadBlob = Cesium.Resource.fetchBlob;
Cesium.loadArrayBuffer = Cesium.Resource.fetchArrayBuffer;
Cesium.loadImage = Cesium.Resource.fetchImage;
}
var defaultColor = new Cesium.Color(1.0, 1.0, 1.0, 0.4);
var defaultGlowColor = new Cesium.Color(0.0, 1.0, 0.0, 0.05);
var defaultBackgroundColor = new Cesium.Color(0.0, 0.5, 0.0, 0.2);
function isShpLocalFiles(files) {
var isFile = files.length >= 3;
if (!isFile) return false;
var shpFile, dbfFile, prjFile;
for (var i = 0; i < files.length; i++) {
var file = files[i];
if (!(file instanceof File || (file instanceof Blob && file.name))) {
return false;
}
if (files[i].name.toLocaleLowerCase().indexOf(".shp") > 0) {
shpFile = files[i];
}
if (files[i].name.toLocaleLowerCase().indexOf(".prj") > 0) {
prjFile = files[i];
}
if (files[i].name.toLocaleLowerCase().indexOf(".dbf") > 0) {
dbfFile = files[i];
}
}
if (!shpFile || !prjFile || !dbfFile) {
return false;
}
return true;
}
/**
*动态矢量切片提供程序，支持esri shapefile、geojson文件，也可以直接加载geojson对象和Polygon,PolyLine
* <ul class="see-list">
* <li><a href="https://mikeswei.github.io/CesiumVectorTile/" target="_blank">VectorTileImageryProviderDemo</a></li>
* </ul>
*@param {Object}options 参数如下：
*@param {String|turf.FeatureCollection|Object|Array<MeteoLib.Util.Contour.PolyLine|MeteoLib.Util.Contour.Polygon|File>}options.source MeteoLib.Util.Contour.PolyLine及MeteoLib.Util.Contour.Polygon数组、矢量文件url、矢量文件列表或者geojson对象
*@param {MeteoLib.Render.VectorStyle}[options.defaultStyle=MeteoLib.Render.VectorStyle.Default] 默认样式
*@param {Boolean}[options.simplify=false] true则简化，默认不简化
*@param {Boolean}[options.simplifyTolerance=0.01] 简化公差
*@param {Boolean}[options.minimumLevel=3] 最小级别
*@param {Boolean}[options.maximumLevel=22] 最大级别
*@param {Cesium.VectorTileImageryProvider~StyleFilterCallback}[options.styleFilter=undefined] 样式函数
*@constructor
*@memberof Cesium
*@extends Cesium.ImageryProvider
*@example
//1.面数据
viewer.imageryLayers.addImageryProvider(new VectorTileImageryProvider({
source: appConfig.BaseURL + "Assets/VectorData/中国数据/陕西/榆林/county_sshanxi_yulin.shp",
defaultStyle:{ outlineColor: Cesium.Color.WHITE,
fill: true
},
maximumLevel: 22,
minimumLevel: 0
}))
//2.点数据
viewer.imageryLayers.addImageryProvider(new VectorTileImageryProvider({
source: appConfig.BaseURL + "Assets/VectorData/中国数据/陕西/榆林/town_sshanxi_yulin.shp"
,defaultStyle:{
fontColor: Cesium.Color.WHITE
, fontSize: 20
, fontFamily: '微软雅黑'
, makerImage: appConfig.BaseURL + "Assets/Images/Stations/autonew.png"
, labelOffsetY: 5
, labelOffsetX: 10
}
, maximumLevel: 22
, minimumLevel: 9
}))
//3.线数据
viewer.imageryLayers.addImageryProvider(new VectorTileImageryProvider({
source: appConfig.BaseURL + "Assets/VectorData/中国数据/中国边界.shp"
}))
//4.geojson
viewer.imageryLayers.addImageryProvider(new VectorTileImageryProvider({
source: appConfig.BaseURL + "Assets/SampleData/simplestyles.geojson",//VectorData/中国数据/中国边界.shp",
defaultStyle:{
fill: true
},
minimumLevel: 0
}))
5.使用样式函数（styleFilter）设置样式
viewer.imageryLayers.addImageryProvider(new Cesium.VectorTileImageryProvider({
source: appConfig.BaseURL + "Assets/VectorData/世界数据/Countries.shp",
defaultStyle: {
outlineColor: Cesium.Color.YELLOW,
lineWidth: 2,
fillColor: Cesium.Color.fromBytes(2, 24, 47, 200),
fill: false,
tileCacheSize: 200,
showMaker: false,
showCenterLabel: true,
fontColor: "rgba(255,0,0,1)",
labelOffsetX: -10,
labelOffsetY: -5,
fontSize: 13,
fontFamily: "黑体",
centerLabelPropertyName: "NAME"
},
maximumLevel: 20,
minimumLevel: 1,
simplify: false ,
styleFilter: function (feature, style) {
if (feature.properties.hasOwnProperty("NAME") && feature.properties["NAME"].toLocaleLowerCase().indexOf("china") >= 0) {
style.outlineColor = Cesium.Color.RED;
style.fill = true;
style.fillColor = Cesium.Color.AZURE.withAlpha(0.5);
}
}
}))
*/
function VectorTileImageryProvider(options) {
///@param {Boolean}[options.multipleTask=true] 是否使用多个VectorTileImageryProvider实例，使用多个实例是设置该参数为true可以提高ui响应速度，使用唯一一个实例时设置该参数为false则可以提高切片速度。
//@param {Boolean}[options.taskWaitTime=10] 使用多个实例时，每个实例的切片任务延迟结束的时间，以此来避免多个矢量图层同时存在时出现某个图层一直更新而其他图层一直没有更新的bug
options = Cesium.defaultValue(options, Cesium.defaultValue.EMPTY_OBJECT);
if (!Cesium.defined(options.source)) {
throw new Cesium.DeveloperError("source is required");
}
var ext = null;
var isLocalShpFile = false;
if (typeof options.source == 'string') {
var source = options.source.toLowerCase();
ext = Path.GetExtension(source)
if (ext !== '.shp' && ext !== '.json' && ext !== '.geojson' && ext !== '.topojson') {
throw new Cesium.DeveloperError("The data options.source provider is not supported.");
}
} else if (options.source.type && options.source.type == "FeatureCollection") {
} else if (isShpLocalFiles(options.source)) {
isLocalShpFile = true;
}
else if (Cesium.isArray(options.source)) {
if (!(options.source[0] instanceof PolyLine) && (options.source[0] instanceof Polygon)) {
throw new Cesium.DeveloperError("The data options.source provider is not supported.");
}
} else {
throw new Cesium.DeveloperError("The data options.source provider is not supported.");
}
this._tilingScheme = new Cesium.GeographicTilingScheme({ ellipsoid: options.ellipsoid });
this._tileWidth = Cesium.defaultValue(options.tileWidth, 256);
this._tileHeight = Cesium.defaultValue(options.tileHeight, 256);
if (ext) {
this._url = options.source.replace(ext, '');
} else {
this._url = options.source;
}
this._fileExtension = ext;
this._simplifyTolerance = Cesium.defaultValue(options.simplifyTolerance, 0.01);
this._simplify = Cesium.defaultValue(options.simplify, false);
//this._multipleTask = Cesium.defaultValue(options.multipleTask, true);
//this._taskWaitTime = Cesium.defaultValue(options.taskWaitTime, 10);
this._maximumLevel = Cesium.defaultValue(options.maximumLevel, 22)
this._minimumLevel = Cesium.defaultValue(options.minimumLevel, 3)
this._makerImage = options.makerImage;
this._tileCacheSize = Cesium.defaultValue(options.tileCacheSize, 200);
if (typeof options.defaultStyle == 'object' && !(options.defaultStyle instanceof VectorStyle)) {
options.defaultStyle = new VectorStyle(options.defaultStyle);
}
this._defaultStyle = Cesium.defaultValue(options.defaultStyle, VectorStyle.Default.clone());
this._styleFilter = typeof options.styleFilter == 'function' ? options.styleFilter : undefined;
this._errorEvent = new Cesium.Event();
this._readyPromise = Cesium.when.defer();
this._ready = false;
this._state = VectorTileImageryProvider.State.READY;
this._cache = {};
this._count = 0;
this._bbox = null;
this._geoJSON = null;
var that = this;
var promises = [];
var makerImagePromise = null;
if (typeof this._makerImage == 'string') {
makerImagePromise = Cesium.when.defer();
var image = new Image();
image.onload = function() {
makerImagePromise.resolve(this);
that._makerImageEl = this;
}
image.onerror = function(err) {
makerImagePromise.resolve(err);
}
image.src = this._makerImage;
promises.push(makerImagePromise);
}
var shpPromise = Cesium.when.defer();
promises.push(shpPromise);
this._state = VectorTileImageryProvider.State.SHPLOADING;
if (ext) {
switch (ext) {
case '.shp':
shp(this._url).then(onSuccess, function(err) {
console.log("load shp file error：" + err);
});
break;
case '.json':
case '.geojson':
case '.topojson':
Cesium.loadText(this._url).then(function(geojson) {
onSuccess(JSON.parse(geojson));
}).otherwise(function(err) {
console.log(err);
})
break;
default:
throw new Cesium.DeveloperError("The file options.source provider is not supported.");
}
} else {
if (isLocalShpFile) {
var prms = shp.parseShpFiles(that._url);
if (prms) {
prms.then(onSuccess).otherwise(function(err) {
console.log(err);
throw new Cesium.DeveloperError("The file options.source provider is not supported.");
});
} else {
throw new Cesium.DeveloperError("The file options.source provider is not supported.");
}
} else {
setTimeout(function() {
if (Cesium.isArray(that._url)) {
var contourLines = that._url;
if (contourLines[0] instanceof PolyLine) {
var coords = [];
var multiLineString = [];
for (var lineNum = 0; lineNum < contourLines.length; lineNum++) {
coords = [];
contourLines[lineNum].PointList.forEach(function(pt) {
coords.push(pt.getCoordArray());
})
multiLineString.push(coords);
}
multiLineString = turf.multiLineString(multiLineString);
multiLineString = turf.featureCollection([multiLineString]);
onSuccess(multiLineString);
}
else if (contourLines[0] instanceof Polygon) {
var multiPolygon = [];
for (var lineNum = 0; lineNum < contourLines.length; lineNum++) {
var coords = [];
contourLines[lineNum].OutLine.PointList.forEach(function(pt) {
coords.push(pt.getCoordArray());
})
var polygon = turf.polygon(coords, contourLines[0].getProperties());
multiPolygon.push(polygon);
}
multiPolygon = turf.featureCollection(multiPolygon);
onSuccess(multiPolygon);
} else {
throw new Cesium.DeveloperError("The data options.source provide is not supported.");
}
} else {
onSuccess(that._url);
}
}, 10)
}
}
this._lineGeoJSON = null;
this._outlineGeoJSON = null;
this._pointGeoJSON = null;
this._polygonJSON = null;
this._onlyPoint = false;
function onSuccess(geoJSON) {
var tolerance = that._simplifyTolerance;
var lines = [], outlines = [], points = [], polygons = [];
var onlyPoint = true;
var simplified;
turf.featureEach(geoJSON, function(feature, index) {
if (feature.geometry.type == "Point"
|| feature.geometry.type == "MultiPoint") {
points.push(feature);
} else if (that._defaultStyle.showCenterLabel
&& that._defaultStyle.centerLabelPropertyName) {
that._defaultStyle.showLabel = true;
that._defaultStyle.labelPropertyName = that._defaultStyle.centerLabelPropertyName;
var center = turf.centerOfMass(feature)
points.push(center);
center.properties = feature.properties;
}
if (feature.geometry.type == "Polygon"
|| feature.geometry.type == "MultiPolygon") {
outlines = outlines.concat(turf.polygonToLineString(feature).features);
onlyPoint = false;
if (that._simplify) {
simplified = turf.simplify(feature, tolerance, false);
polygons.push(simplified);
simplified = null;
} else {
polygons.push(feature);
}
}
if (feature.geometry.type == "MultiLineString"
|| feature.geometry.type == "LineString") {
if (that._simplify) {
simplified = turf.simplify(feature, tolerance, false);
lines.push(simplified);
simplified = null;
} else {
lines.push(feature);
}
onlyPoint = false;
}
})
if (lines.length > 0) {
that._lineGeoJSON = turf.featureCollection(lines);
lines = null;
}
if (outlines.length > 0) {
outlines.forEach(function(outline) {
outline.properties.isOutline = true;
})
that._outlineGeoJSON = turf.featureCollection(outlines);
outlines = null;
}
if (points.length > 0) {
that._pointGeoJSON = turf.featureCollection(points);
points = null;
}
if (polygons.length > 0) {
that._polygonJSON = turf.featureCollection(polygons);
polygons = null;
}
that._onlyPoint = onlyPoint;
that._state = VectorTileImageryProvider.State.LOADED;
that._bbox = turf.bbox(geoJSON);
// that.rectangle = Cesium.Rectangle.fromDegrees(that._bbox[0], that._bbox[1], that._bbox[2], that._bbox[3]);
that._bbox = Cesium.Rectangle.fromDegrees(that._bbox[0], that._bbox[1], that._bbox[2], that._bbox[3]);
geoJSON = null;
shpPromise.resolve(that);
}
Cesium.when.all(promises, function() {
that._ready = that._state == VectorTileImageryProvider.State.LOADED;
that._createCanvas();
VectorTileImageryProvider.instanceCount++;
that._readyPromise.resolve(true);
that._state = VectorTileImageryProvider.State.COMPELTED;
});
}
/**
*样式设置函数
*@callback Cesium.VectorTileImageryProvider~StyleFilterCallback
*@param {Geojson.Feature}feature 当前要素（用Geojson.Feature存储）
*@param {MeteoLib.Render.VectorStyle}style 即将应用与当前要素的样式，可以通过修改该参数中的各样式设置选项来针对当前要素进行特殊的样式设置。
*修改后只对当前要素有效，不会修改Cesium.VectorTileImageryProvider的默认样式
*@example
*/
VectorTileImageryProvider.instanceCount = 0;
VectorTileImageryProvider._currentTaskCount = 0;
VectorTileImageryProvider._maxTaskCount = 3;
VectorTileImageryProvider.State = {
READY: 0,
SHPLOADING: 1,
CLIPPING: 3,
GEOJSONDRAWING: 4,
COMPELTED: 5
}
Cesium.defineProperties(VectorTileImageryProvider.prototype, {
/**
* Gets the proxy used by this provider.
* @memberof Cesium.VectorTileImageryProvider.prototype
* @type {Proxy}
* @readonly
*/
proxy: {
get: function() {
return undefined;
}
},
/**
* Gets the width of each tile, in pixels. This function should
* not be called before {@link Cesium.VectorTileImageryProvider#ready} returns true.
* @memberof Cesium.VectorTileImageryProvider.prototype
* @type {Number}
* @readonly
*/
tileWidth: {
get: function() {
return this._tileWidth;
}
},
/**
* Gets the height of each tile, in pixels. This function should
* not be called before {@link Cesium.VectorTileImageryProvider#ready} returns true.
* @memberof Cesium.VectorTileImageryProvider.prototype
* @type {Number}
* @readonly
*/
tileHeight: {
get: function() {
return this._tileHeight;
}
},
/**
* Gets the maximum level-of-detail that can be requested. This function should
* not be called before {@link Cesium.VectorTileImageryProvider#ready} returns true.
* @memberof Cesium.VectorTileImageryProvider.prototype
* @type {Number}
* @readonly
*/
maximumLevel: {
get: function() {
return this._maximumLevel;
}
},
/**
* Gets the minimum level-of-detail that can be requested. This function should
* not be called before {@link Cesium.VectorTileImageryProvider#ready} returns true.
* @memberof Cesium.VectorTileImageryProvider.prototype
* @type {Number}
* @readonly
*/
minimumLevel: {
get: function() {
//if (this._minimumLevel <5) {
// return this._minimumLevel;
//}
return 0;
}
},
/**
* Gets the tiling scheme used by this provider. This function should
* not be called before {@link Cesium.VectorTileImageryProvider#ready} returns true.
* @memberof Cesium.VectorTileImageryProvider.prototype
* @type {TilingScheme}
* @readonly
*/
tilingScheme: {
get: function() {
return this._tilingScheme;
}
},
/**
* Gets the rectangle, in radians, of the imagery provided by this instance. This function should
* not be called before {@link Cesium.VectorTileImageryProvider#ready} returns true.
* @memberof Cesium.VectorTileImageryProvider.prototype
* @type {Rectangle}
* @readonly
*/
rectangle: {
get: function() {
return this._bbox;//_tilingScheme.rectangle;
}
},
/**
* Gets the tile discard policy. If not undefined, the discard policy is responsible
* for filtering out "missing" tiles via its shouldDiscardImage function. If this function
* returns undefined, no tiles are filtered. This function should
* not be called before {@link Cesium.VectorTileImageryProvider#ready} returns true.
* @memberof Cesium.VectorTileImageryProvider.prototype
* @type {TileDiscardPolicy}
* @readonly
*/
tileDiscardPolicy: {
get: function() {
return undefined;
}
},
/**
* Gets an event that is raised when the imagery provider encounters an asynchronous error. By subscribing
* to the event, you will be notified of the error and can potentially recover from it. Event listeners
* are passed an instance of {@link TileProviderError}.
* @memberof Cesium.VectorTileImageryProvider.prototype
* @type {Event}
* @readonly
*/
errorEvent: {
get: function() {
return this._errorEvent;
}
},
/**
* Gets a value indicating whether or not the provider is ready for use.
* @memberof Cesium.VectorTileImageryProvider.prototype
* @type {Boolean}
* @readonly
*/
ready: {
get: function() {
return this._ready;
}
},
/**
* Gets a promise that resolves to true when the provider is ready for use.
* @memberof Cesium.VectorTileImageryProvider.prototype
* @type {Promise.<Boolean>}
* @readonly
*/
readyPromise: {
get: function() {
return this._readyPromise;
}
},
/**
* Gets the credit to display when this imagery provider is active. Typically this is used to credit
* the source of the imagery. This function should not be called before {@link Cesium.VectorTileImageryProvider#ready} returns true.
* @memberof Cesium.VectorTileImageryProvider.prototype
* @type {Credit}
* @readonly
*/
credit: {
get: function() {
return undefined;
}
},
/**
* Gets a value indicating whether or not the images provided by this imagery provider
* include an alpha channel. If this property is false, an alpha channel, if present, will
* be ignored. If this property is true, any images without an alpha channel will be treated
* as if their alpha is 1.0 everywhere. When this property is false, memory usage
* and texture upload time are reduced.
* @memberof Cesium.VectorTileImageryProvider.prototype
* @type {Boolean}
* @readonly
*/
hasAlphaChannel: {
get: function() {
return true;
}
}
});
VectorTileImageryProvider.prototype._createCanvas = function() {
this._canvas = document.createElement("canvas");
this._canvas.width = this._tileWidth;
this._canvas.height = this._tileHeight;
this._context = this._canvas.getContext("2d");
this._context.lineWidth = this._defaultStyle.lineWidth;
this._context.strokeStyle = this._defaultStyle.outlineColor.toCssColorString();// "rgb(255,255,0)";
this._context.fillStyle = this._defaultStyle.fillColor.toCssColorString();// "rgba(0,255,255,0.0)";
}
var isWorking = false;
//用当前瓦片（Tile）矩形裁剪geojson并返回裁剪结果
VectorTileImageryProvider.prototype._clipGeojson = function(rectangle) {
var that = this;
var bbox = [Cesium.Math.toDegrees(rectangle.west),
Cesium.Math.toDegrees(rectangle.south),
Cesium.Math.toDegrees(rectangle.east),
Cesium.Math.toDegrees(rectangle.north)];
var poly = turf.polygon([[
[bbox[0], bbox[1]],//sw
[bbox[2], bbox[1]],//se
[bbox[2], bbox[3]],//ne
[bbox[0], bbox[3]],//nw
[bbox[0], bbox[1]],//sw
]]);
poly = turf.featureCollection([poly]);
var features = [];
if (this._pointGeoJSON) {
var pts = turf.within(this._pointGeoJSON, poly);
features = features.concat(pts.features);
}
var canClipGeojsons = [];
if (this._lineGeoJSON) {
canClipGeojsons.push(this._lineGeoJSON);
}
if (this._outlineGeoJSON) {
canClipGeojsons.push(this._outlineGeoJSON);
}
if (this._polygonJSON) {
canClipGeojsons.push(this._polygonJSON);
}
var clipped;
canClipGeojsons.forEach(function(geojson) {
turf.featureEach(geojson, function(currentFeature, currentIndex) {
clipped = null;
try {
clipped = turf.bboxClip(currentFeature, bbox);
if (clipped && clipped.geometry.coordinates.length > 0) {
var empty = true;
for (var i = 0; i < clipped.geometry.coordinates.length; i++) {
if (clipped.geometry.coordinates[i].length > 0) {
empty = false;
break;
}
}
if (!empty) {
features.push(clipped);
}
}
} catch (e) {
var coordinates = [];
currentFeature.geometry.coordinates.forEach(function(contour) {
if (contour.length > 3) {
coordinates.push(contour);
}
})
currentFeature.geometry.coordinates = coordinates;
clipped = turf.bboxClip(currentFeature, bbox);
if (clipped && clipped.geometry.coordinates.length > 0) {
features.push(clipped);
}
}
})
})
clipped = null;
if (features.length > 0) {
features = turf.featureCollection(features);
return features;
}
return null;
}
/**
* 挖孔
* @param {any} context
* @param {any} projection
* @param {any} boundingRect
* @param {any} x
* @param {any} y
* @param {any} holes
*/
function createHoles(context, projection, boundingRect, x, y, holes) {
var tileCanvas = context.canvas;
var imgData = context.getImageData(0, 0, tileCanvas.width, tileCanvas.height);
var holeMaskCanvas = document.createElement("canvas");
holeMaskCanvas.width = tileCanvas.width;
holeMaskCanvas.height = tileCanvas.height;
var holeMaskCtx = holeMaskCanvas.getContext("2d");
var mask = [];
holes.map(function(hole) {
holeMaskCtx.clearRect(0, 0, holeMaskCanvas.width, holeMaskCanvas.height);
holeMaskCtx.beginPath();
var pointIndex = 0;
hole.map(function(coordinate) {
var pt = projection.project(coordinate, boundingRect)
if (pointIndex == 0) {
holeMaskCtx.moveTo(x + pt.x, y + pt.y);
} else {
holeMaskCtx.lineTo(x + pt.x, y + pt.y);
}
pointIndex++;
})
holeMaskCtx.closePath();
holeMaskCtx.fillStyle = "rgba(255,255,255,1)";
holeMaskCtx.fill();
mask = holeMaskCtx.getImageData(0, 0, holeMaskCanvas.width, holeMaskCanvas.height).data;
for (var i = 3; i < mask.length; i += 4) {
if (mask[i] > 0) {
imgData.data[i] = 0;
}
}
});
context.putImageData(imgData, 0, 0);
}
//绘制多边形（面或线）
function drawContours(context, projection, boundingRect, x, y, contours, fill, stroke, style) {
var count = 0;
var holes = [];
contours.map(function(contour) {
if (!fill || count <= 0) {
var pointIndex = 0;
context.beginPath();
contour.map(function(coordinate) {
var pt = projection.project(coordinate, boundingRect)
if (pointIndex == 0) {
context.moveTo(x + pt.x, y + pt.y);
} else {
context.lineTo(x + pt.x, y + pt.y);
}
pointIndex++;
})
if (stroke) {
context.stroke();
}
if (fill) {
context.closePath();
context.fill();
}
} else {
holes.push(contour);
}
count++;
})
if (fill) {
return holes;
} else {
holes = null;
}
}
//画点
function drawMarker(context, projection, boundingRect, x, y, pointFeature, fill, stroke, labelPropertyName, makerStyle) {
if (typeof labelPropertyName == 'undefined') {
labelPropertyName = "NAME";
}
var style = Object.assign({
pointSize: 3,
fontSize: 9,
fontFamily: 'courier',
color: 'rgb(0,0,0)',
backgroundColor: 'rgb(255,0,0)',
pointStyle: "Solid",//'Solid','Ring','Circle'
ringRadius: 2,
circleLineWidth: 1,
showMaker: true,
showLabel: true,
labelOffsetX: 0.0,
labelOffsetY: 0.0,
markerSymbol: undefined
}, makerStyle);
context.font = style.fontSize + 'px ' + style.fontFamily + ' bold'
var pt = projection.project(pointFeature.geometry.coordinates, boundingRect)
if (style.showMaker) {
var px = pt.x + x,
py = pt.y + y;
if (px + style.pointSize > context.canvas.width) {
px -= style.pointSize * 2;
}
if (px >= 0 && px - style.pointSize <= 0) {
px += style.pointSize;
}
if (py + style.pointSize > context.canvas.width) {
py -= style.pointSize * 2;
}
if (py >= 0 && py - style.pointSize <= 0) {
py += style.pointSize;
}
if (style.markerSymbol && style.markerSymbol instanceof Image) {
if (px - style.markerSymbol.width / 2 < 0) {
px += style.markerSymbol.width / 2;
}
if (py - style.markerSymbol.width / 2 < 0) {
py += style.markerSymbol.width / 2;
}
if (px + style.markerSymbol.width / 2 > context.canvas.width) {
px -= style.markerSymbol.width / 2;
}
if (py + style.markerSymbol.width / 2 > context.canvas.height) {
py -= style.markerSymbol.width / 2;
}
context.drawImage(style.markerSymbol, px, py);//, style.pointSize, style.pointSize);
} else {
context.fillStyle = style.backgroundColor
context.beginPath();
context.arc(px, py, style.pointSize, 0, Math.PI * 2);
if (style.pointStyle == 'Solid') {
context.fill();
}
else if (style.pointStyle == 'Circle') {
context.lineWidth = style.circleLineWidth;
context.strokeStyle = style.backgroundColor
context.stroke();
} else if (style.pointStyle == 'Ring') {
context.strokeStyle = style.backgroundColor
context.stroke();
context.beginPath();
context.arc(px, py, style.ringRadius, 0, Math.PI * 2);
context.closePath();
context.fill();
}
}
}
if (style.showLabel) {
if (typeof pointFeature.properties[labelPropertyName] === 'string') {
context.fillStyle = style.color;
var px = pt.x + x + style.labelOffsetX + 4,
py = pt.y + y + style.labelOffsetY + style.fontSize / 2;
var text = pointFeature.properties[labelPropertyName];
if (text) {
text = text.trim();
var textWidth = context.measureText(text).width;
if (px + textWidth > context.canvas.width) {
px -= (textWidth + style.pointSize + 6);
}
if (py + style.fontSize > context.canvas.height) {
py -= style.labelOffsetY + style.fontSize / 2;
}
context.fillText(text, px, py);
}
}
}
context.restore();
}
/**
*
*@param {Number}x
*@param {Number}y
*@param {Object}geojson
*@param {Object}[boundingRect=undefined]
*@param {Number}width
*@param {Number}height
*@param {Object}[fill=true]
*@param {Object}[stroke=true]
*@private
*/
VectorTileImageryProvider.prototype._drawGeojson = function(context, x, y, geojson, boundingRect, width, height, fill, stroke) {
var that = this;
if (typeof fill == 'undefined') {
fill = true;
}
if (typeof stroke == 'undefined') {
stroke = true;
}
if (!fill && !stroke) {
return undefined;
}
if (typeof width == 'undefined') {
width = context.canvas.width - x;
}
if (typeof height == 'undefined') {
height = context.canvas.height - y;
}
var projection = new LonLatProjection(width, height);
var style = this._defaultStyle;
var makerStyle = {
pointSize: style.pointSize,
fontSize: style.fontSize,
fontFamily: style.fontFamily,
color: style.fontColor.toCssColorString(),
backgroundColor: style.pointColor.toCssColorString(),
pointStyle: style.pointStyle,//'Solid','Ring','Circle'
ringRadius: style.ringRadius,
circleLineWidth: style.circleLineWidth,
showMaker: style.showMaker,
showLabel: style.showLabel,
labelOffsetX: style.labelOffsetX,
labelOffsetY: style.labelOffsetY,
markerSymbol: style.makerImage instanceof Image ? style.makerImage : style.makerImageEl
};
var holes = [];
turf.featureEach(geojson, function(currentFeature, currentFeatureIndex) {
if (that._styleFilter) {
style = that._defaultStyle.clone();
that._styleFilter(currentFeature, style);
makerStyle = {
pointSize: style.pointSize,
fontSize: style.fontSize,
fontFamily: style.fontFamily,
color: style.fontColor.toCssColorString(),
backgroundColor: style.pointColor.toCssColorString(),
pointStyle: style.pointStyle,//'Solid','Ring','Circle'
ringRadius: style.ringRadius,
circleLineWidth: style.circleLineWidth,
showMaker: style.showMaker,
showLabel: style.showLabel,
labelOffsetX: style.labelOffsetX,
labelOffsetY: style.labelOffsetY,
markerSymbol: style.makerImage instanceof Image ? style.makerImage : style.makerImageEl
};
}
context.lineWidth = style.lineWidth;
context.strokeStyle = style.outlineColor.toCssColorString();// "rgb(255,255,0)";
context.fillStyle = style.fillColor.toCssColorString();// "rgba(0,255,255,0.0)";
if (style.lineDash) {
context.setLineDash(style.lineDash);
}
context.lineCap = style.lineCap;
if (style.shadowColor && style.shadowColor instanceof Cesium.Color) {
context.shadowColor = style.shadowColor.toCssColorString();
} else {
context.shadowColor = style.shadowColor;
}
context.shadowBlur = style.shadowBlur;
context.shadowOffsetX = style.shadowOffsetX;
context.shadowOffsetY = style.shadowOffsetY;
context.miterLimit = style.miterLimit;
context.lineJoin = style.lineJoin;
if (currentFeature.geometry.type == "Point") {
drawMarker(context, projection, boundingRect, x, y, currentFeature, fill, stroke, style.labelPropertyName, makerStyle);
}
else if (currentFeature.geometry.type == "Polygon" && style.fill) {
var contours = turf.getCoords(currentFeature);
var tempHoles = drawContours(context, projection, boundingRect, x, y, contours, true, false, style);
if (tempHoles) {
tempHoles.map(function(hole) {
hole.style = style;
holes.push(hole);
})
}
} else if (currentFeature.geometry.type == "MultiPolygon" && style.fill) {
var polygons;
try {
polygons = turf.getCoords(currentFeature);
polygons.map(function(contours) {
var tempHoles = drawContours(context, projection, boundingRect, x, y, contours, true, false, style);
if (tempHoles) {
tempHoles.map(function(hole) {
hole.style = style;
holes.push(hole);
})
}
})
} catch (e) {
// console.log(e);
}
} else if (currentFeature.geometry.type == "MultiLineString") {
if (currentFeature.properties.isOutline && !style.outline) {
} else {
var contours = turf.getCoords(currentFeature);
drawContours(context, projection, boundingRect, x, y, contours, false, true, style);
contours = null;
}
}
else if (currentFeature.geometry.type == "LineString") {
if (currentFeature.properties.isOutline && !style.outline) {
} else {
var contour = turf.getCoords(currentFeature);
var contours = [contour]
drawContours(context, projection, boundingRect, x, y, contours, false, true, style);
contour = null;
contours = null;
}
}
})
if (holes && holes.length) {
createHoles(context, projection, boundingRect, x, y, holes);
holes = null;
}
}
VectorTileImageryProvider.prototype._createTileImage = function(x, y, level, rectangle, defer) {
var that = this;
var cacheId = x + "," + y + "," + level;
var boundingRect = {
xMin: Cesium.Math.toDegrees(rectangle.west),
yMin: Cesium.Math.toDegrees(rectangle.south),
xMax: Cesium.Math.toDegrees(rectangle.east),
yMax: Cesium.Math.toDegrees(rectangle.north)
};
this._state = VectorTileImageryProvider.State.CLIPPING;
Cesium.requestAnimationFrame(function() {
var clippedGeojson = that._clipGeojson(rectangle);
if (!clippedGeojson) {
defer.resolve(undefined);
that._state = VectorTileImageryProvider.State.COMPELTED;
VectorTileImageryProvider._currentTaskCount--;
} else {
Cesium.requestAnimationFrame(function() {
that._state = VectorTileImageryProvider.State.GEOJSONDRAWING;
that._createCanvas();
that._context.clearRect(0, 0, that._canvas.width, that._canvas.height);
//if (level < 8) {
// var v = 1.5 / Math.pow(2, (level + 0));
// try {
// clippedGeojson = turf.simplify(clippedGeojson, v);
// } catch (e) {
// }
//}
that._drawGeojson(that._context, 0, 0, clippedGeojson, boundingRect, that._tileWidth, that._tileHeight, that._fill, that._outline);
that.cache[cacheId] = that._canvas;
that.cache[cacheId].srcJson = clippedGeojson;
that.cacheCount++;
VectorTileImageryProvider._currentTaskCount--;
defer.resolve(that._canvas);
Cesium.requestAnimationFrame(function() {
that._state = VectorTileImageryProvider.State.COMPELTED;
});
});
}
});
}
VectorTileImageryProvider.prototype._getTileImage = function(x, y, level, rectangle) {
var defer = Cesium.when.defer();
var that = this;
//从缓存中查询
var cacheId = x + "," + y + "," + level;
if (!that.cacheCount) {
that.cacheCount = 0;
}
if (!that.cache || that.cacheCount > that._tileCacheSize) {
for (var cacheId in that.cache) {
if (that.cache.hasOwnProperty(cacheId)) {
that.cache[cacheId].srcJson = null;
delete that.cache[cacheId];
}
}
that.cache = {};
that.cacheCount = 0;
}
if (that.cache[cacheId]) {
return that.cache[cacheId]
}
//处理并发
if (VectorTileImageryProvider._maxTaskCount < VectorTileImageryProvider._currentTaskCount) {
return undefined;
}
VectorTileImageryProvider._currentTaskCount++;
that._state = VectorTileImageryProvider.State.READY;
setTimeout(function() {
return that._createTileImage(x, y, level, rectangle, defer)
}, 1);
return defer;
}
var scratchRectangleIntersection = new Cesium.Rectangle();
VectorTileImageryProvider.prototype.requestImage = function(x, y, level, distance) {
if (!this._ready || this._state != VectorTileImageryProvider.State.COMPELTED) {
return undefined;
}
if (level < this._minimumLevel) {
this._createCanvas();
this._context.clearRect(0, 0, this._tileWidth, this._tileHeight);
return this._canvas;
}
var rectangle = this.tilingScheme.tileXYToRectangle(x, y, level);
return this._getTileImage(x, y, level, rectangle);
}
VectorTileImageryProvider.prototype.pickFeatures = function(x, y, level, longitude, latitude) {
//alert(longitude+","+ latitude);
}
return VectorTileImageryProvider;
});
define('Main',[
'VectorRenderer/VectorLayer',
'VectorRenderer/VectorRenderer',
'VectorRenderer/VectorStyle',
'VectorTileImageryProvider/VectorTileImageryProvider',
'Util/turf'
], function (
VectorLayer,
VectorRenderer,
VectorStyle,
VectorTileImageryProvider,
turf
) {
if (typeof window!=='undefined'&&!window.Cesium) {
window.Cesium = {};
} else if (typeof global !== 'undefined' && !global.Cesium) {
global.Cesium = {};
}
Cesium.VectorRenderer = VectorRenderer;
Cesium.VectorTileImageryProvider = VectorTileImageryProvider;
Cesium.VectorLayer = VectorLayer;
Cesium.VectorStyle = VectorStyle;
Cesium.turf = turf;
return Cesium;
});
require([
'Main'
], function (
Cesium) {
'use strict';
/*global self*/
var scope = typeof window !== 'undefined' ? window : typeof self !== 'undefined' ? self : {};
scope.Cesium = Cesium;
if (scope.onLoad) {
scope.onLoad(Cesium)
}
}, undefined, true);
})();
if (typeof define === "function") {
define(function () {
var newLib = Cesium;
Cesium = undefined;
return newLib;
});
} else if (typeof module === "undefined") {
window.Cesium = Cesium;
} else {
module.exports = Cesium;
}