import * as mars3d from "mars3d"
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export let map // mars3d.Map三维地图对象
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// 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）
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export const mapOptions = {
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scene: {
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center: { lat: 28.059099, lng: 120.440855, alt: 5467418, heading: 343, pitch: -75 }
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}
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}
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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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map.basemap = "黑色底图"
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addDemoGraphics()
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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 addDemoGraphics() {
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Cesium.Resource.fetchJson("//data.mars3d.cn/file/apidemo/flights.json").then(function (data) {
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const airports = data.airports.map(function (item) {
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return {
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name: item[0],
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country: item[2],
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point: Cesium.Cartesian3.fromDegrees(item[3], item[4])
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}
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})
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const routesGroupByAirline = {}
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data.routes.forEach(function (route) {
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const airline = data.airlines[route[0]]
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const airlineName = airline[0]
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if (!routesGroupByAirline[airlineName]) {
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routesGroupByAirline[airlineName] = []
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}
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routesGroupByAirline[airlineName].push(route)
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})
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const routes = routesGroupByAirline["Air China"]
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const routePaths = []
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routes.forEach(function (route, index) {
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const start = airports[route[1]]
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const end = airports[route[2]]
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routePaths.push({
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startName: start.name,
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startPoint: start.point,
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endName: end.name,
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endPoint: end.point
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})
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})
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initPath(routePaths)
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})
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}
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function initPath(routePaths) {
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// 创建Graphic图层
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const graphicLayer = new mars3d.layer.GraphicLayer()
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map.addLayer(graphicLayer)
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// 在layer上绑定监听事件
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graphicLayer.on(mars3d.EventType.click, function (event) {
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console.log("监听layer，单击了矢量对象", event)
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})
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// 在layer上绑定Popup弹窗
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graphicLayer.bindPopup(function (event) {
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const attr = event.graphic.attr
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if (!attr) {
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return false
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}
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return mars3d.Util.getTemplateHtml({ title: "航线", template: "{startName} - {endName}", attr: attr })
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})
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const arrData = []
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routePaths.forEach(function (item, index) {
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const positions = mars3d.PolyUtil.getLinkedPointList(item.startPoint, item.endPoint, 5000, 30)
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arrData.push({
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positions: positions,
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style: {
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width: 2.0,
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material: mars3d.MaterialUtil.createMaterial(mars3d.MaterialType.ODLine, {
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color: new Cesium.Color(0.8 * Math.random() + 0.2, 0.5 * Math.random() + 0.5, 0.1, 1.0),
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bgColor: new Cesium.Color(0.8, 0.8, 0.2, 0.2),
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startTime: 10.0 * Math.random(),
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speed: 2 + 1.0 * Math.random(),
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bidirectional: 2
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})
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},
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attr: item
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})
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})
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// 多个线对象的合并渲染。
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const primitive = new mars3d.graphic.PolylineCombine({
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instances: arrData
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})
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graphicLayer.addGraphic(primitive)
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}
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// 按单个线渲染，效率差些
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/* function initPath(routePaths) {
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// 创建Graphic图层
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let graphicLayer = new mars3d.layer.GraphicLayer()
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map.addLayer(graphicLayer)
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routePaths.forEach(function (item, index) {
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const positions = mars3d.PolyUtil.getLinkedPointList(item.startPoint, item.endPoint, 5000, 30)
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let graphic = new mars3d.graphic.PolylinePrimitive({
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positions: positions,
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style: {
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width: 2.0,
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material: mars3d.MaterialUtil.createMaterial(mars3d.MaterialType.ODLine, {
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color: new Cesium.Color(0.8 * Math.random() + 0.2, 0.5 * Math.random() + 0.5, 0.1, 1.0),
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bgColor: new Cesium.Color(0.8, 0.8, 0.2, 0.2),
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startTime: 10.0 * Math.random(),
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speed: 2 + 1.0 * Math.random(),
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bidirectional: 2
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})
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}
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})
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graphicLayer.addGraphic(graphic)
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})
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} */
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