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| import * as mars3d from "mars3d"
|
| export let map // mars3d.Map三维地图对象
|
| // 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: 31.665038, lng: 117.26431, alt: 40054, heading: 0, pitch: -62 }
| }
| }
|
| /**
| * 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 // 记录首次创建的map
|
| map.basemap = 2017 // 蓝色底图
|
| mars3d.Util.fetchJson({ url: "//data.mars3d.cn/file/geojson/hefei-road.json" })
| .then(function (data) {
| // 创建Mapv
| createMapvLayer(data.features)
| })
| .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
| }
|
| // 创建mapv图层
| function createMapvLayer(rs) {
| const timeData = []
| const arr = mars3d.Util.geoJsonToGraphics(rs) // 解析geojson
| for (let i = 0; i < arr.length; i++) {
| const item = arr[i]
|
| for (let j = 0; j < item.positions.length; j++) {
| timeData.push({
| geometry: {
| type: "Point",
| coordinates: item.positions[j]
| },
| count: 1,
| time: j
| })
| }
| }
|
| const options1 = {
| strokeStyle: "rgba(53,57,255,0.5)",
| shadowColor: "rgba(53,57,255,0.2)",
| shadowBlur: 3,
| lineWidth: 3.0,
| draw: "simple",
| depthTest: false,
| data: rs // 数据
| }
|
| // 创建MapV图层 线图层
| const mapVLayer1 = new mars3d.layer.MapVLayer(options1)
| map.addLayer(mapVLayer1)
|
| const options2 = {
| fillStyle: "rgba(255, 250, 250, 0.2)",
| globalCompositeOperation: "lighter",
| size: 1.5,
| animation: {
| stepsRange: {
| start: 0,
| end: 100
| },
| trails: 3,
| duration: 5
| },
| draw: "simple",
| depthTest: false,
| data: timeData // 数据
| }
|
| // 创建MapV图层 动态轨迹图层
| const mapVLayer2 = new mars3d.layer.MapVLayer(options2)
| map.addLayer(mapVLayer2)
| }
|
|
