import * as mars3d from "mars3d"
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export let map // mars3d.Map三维地图对象
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let measure
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/**
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* 初始化地图业务，生命周期钩子函数（必须）
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* 框架在地图初始化完成后自动调用该函数
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* @param {mars3d.Map} mapInstance 地图对象
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* @returns {void} 无
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*/
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export function onMounted(mapInstance) {
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map = mapInstance // 记录map
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addMeasure()
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}
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/**
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* 释放当前地图业务的生命周期函数
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* @returns {void} 无
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*/
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export function onUnmounted() {
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map = null
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}
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function addMeasure() {
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measure = new mars3d.thing.Measure({
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label: {
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color: "#ffffff",
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font_family: "楷体",
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font_size: 20,
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background: false
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}
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})
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map.addThing(measure)
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measure.on(mars3d.EventType.start, function (e) {
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console.log("开始异步分析", e)
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showLoading()
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})
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measure.on(mars3d.EventType.end, function (e) {
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console.log("完成异步分析", e)
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hideLoading()
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})
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}
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export function onlyPickModelPosition(val) {
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// 控制鼠标只取模型上的点，忽略地形上的点的拾取
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map.onlyPickModelPosition = val
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}
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export function removeAll() {
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measure.clear()
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}
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// 空间距离
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export function measureLength() {
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measure.distance({
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showAddText: true
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// style: {
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// color: '#ffff00',
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// width: 3,
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// clampToGround: false //是否贴地
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// }
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})
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}
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// 贴地距离
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export function measureSurfaceLength() {
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measure.distanceSurface({
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showAddText: true
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// unit: 'm', //支持传入指定计量单位
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// style: {
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// color: '#ffff00',
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// width: 3,
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// clampToGround: true //是否贴地
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// }
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})
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}
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// 水平面积
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export function measureArea() {
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measure.area({
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// style: {
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// color: '#00fff2',
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// opacity: 0.4,
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// outline: true,
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// outlineColor: '#fafa5a',
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// outlineWidth: 1,
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// clampToGround: false //贴地
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// }
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})
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}
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// 贴地面积
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export function measureSurfaceeArea() {
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measure.areaSurface({
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style: {
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color: "#ffff00"
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},
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splitNum: 10 // step插值分割的个数
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})
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}
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// 高度差
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export function measureHeight() {
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measure.height()
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}
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// 三角测量
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export function measureTriangleHeight() {
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measure.heightTriangle()
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}
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// 方位角
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export function measureAngle() {
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measure.angle()
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}
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// 坐标测量
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export function measurePoint() {
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measure.point()
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}
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