import * as mars3d from "mars3d"
|
|
export let map // mars3d.Map三维地图对象
|
export let graphicLayer
|
|
// 需要覆盖config.json中地图属性参数（当前示例框架中自动处理合并）
|
export const mapOptions = {
|
scene: {
|
center: { lat: 31.772337, lng: 117.213784, alt: 12450, heading: 0, pitch: -66 }
|
}
|
}
|
|
/**
|
* 初始化地图业务，生命周期钩子函数（必须）
|
* 框架在地图初始化完成后自动调用该函数
|
* @param {mars3d.Map} mapInstance 地图对象
|
* @returns {void} 无
|
*/
|
export function onMounted(mapInstance) {
|
map = mapInstance // 记录map
|
|
// 创建矢量数据图层
|
graphicLayer = new mars3d.layer.GraphicLayer()
|
map.addLayer(graphicLayer)
|
|
const extent = map.getExtent()
|
mars3d.Util.fetchJson({
|
url: "//server.mars3d.cn/server/pointRandom/",
|
queryParameters: {
|
xmin: extent.xmin,
|
ymin: extent.ymin,
|
xmax: extent.xmax,
|
ymax: extent.ymax,
|
count: 100
|
}
|
})
|
.then(function (data) {
|
addData(data)
|
})
|
.catch(function (error) {
|
console.log("加载JSON出错", error)
|
})
|
}
|
|
/**
|
* 释放当前地图业务的生命周期函数
|
* @returns {void} 无
|
*/
|
export function onUnmounted() {
|
map = null
|
}
|
|
let selectGraphic = []
|
function addData(arr) {
|
for (let i = 0, len = arr.length; i < len; i++) {
|
const item = arr[i]
|
|
const graphic = new mars3d.graphic.BillboardEntity({
|
position: Cesium.Cartesian3.fromDegrees(item.x, item.y, 0),
|
style: {
|
image: "img/marker/mark3.png",
|
scale: 1,
|
horizontalOrigin: Cesium.HorizontalOrigin.CENTER,
|
verticalOrigin: Cesium.VerticalOrigin.BOTTOM,
|
scaleByDistance: new Cesium.NearFarScalar(10000, 1.0, 500000, 0.1)
|
},
|
attr: item
|
})
|
graphicLayer.addGraphic(graphic)
|
|
graphic.bindTooltip(item.name)
|
}
|
}
|
|
// 在范围内的改变图标为红色
|
function updateSelect(drawGraphic) {
|
graphicLayer.eachGraphic((graphic) => {
|
const position = graphic.positionShow
|
|
const isInArea = drawGraphic.isInPoly(position)
|
if (isInArea) {
|
graphic.setStyle({
|
image: "img/marker/mark1.png"
|
})
|
selectGraphic.push(graphic)
|
}
|
})
|
}
|
|
export function removeAll() {
|
map.graphicLayer.clear()
|
|
for (let i = 0; i < selectGraphic.length; i++) {
|
const graphic = selectGraphic[i]
|
graphic.setStyle({
|
image: "img/marker/mark3.png"
|
})
|
}
|
selectGraphic = []
|
}
|
|
export function drawPolygon() {
|
removeAll()
|
map.graphicLayer.startDraw({
|
type: "polygon",
|
style: {
|
color: "#ffff00",
|
opacity: 0.2,
|
clampToGround: true
|
},
|
success: function (graphic) {
|
updateSelect(graphic)
|
}
|
})
|
}
|
|
export function drawCircle() {
|
removeAll()
|
map.graphicLayer.startDraw({
|
type: "circle",
|
style: {
|
color: "#ffff00",
|
opacity: 0.2,
|
clampToGround: true
|
},
|
success: function (graphic) {
|
updateSelect(graphic)
|
}
|
})
|
}
|
|
export function drawRectangle() {
|
removeAll()
|
map.graphicLayer.startDraw({
|
type: "rectangle",
|
style: {
|
color: "#ffff00",
|
opacity: 0.2,
|
clampToGround: true
|
},
|
success: function (graphic) {
|
updateSelect(graphic)
|
}
|
})
|
}
|
