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: 53.285266, lng: 142.68078, alt: 17309707, heading: 45, pitch: -83 },
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mapMode2D: Cesium.MapMode2D.ROTATE, // 二三维场景切换黑影
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clock: {
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currentTime: "2021-01-01T12:08:20Z",
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multiplier: 60 // 速度
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},
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cameraController: {
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maximumZoomDistance: 9000000000,
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constrainedAxis: false // 解除在南北极区域鼠标操作限制
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}
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},
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control: {
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clockAnimate: true, // 时钟动画控制(左下角)
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timeline: true, // 是否显示时间线控件,
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compass: { top: "10px", left: "5px" }
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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.toolbar.style.bottom = "55px" // 修改toolbar控件的样式
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// 创建矢量数据图层
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const graphicLayer = new mars3d.layer.GraphicLayer()
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map.addLayer(graphicLayer)
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const property = getDynamicProperty() // 取数据
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// 视锥体 展示
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const conicSensor = new mars3d.graphic.ConicSensor({
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position: property,
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style: {
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angle: 15,
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length: 2500000,
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color: "rgba(255,0,0,0.4)",
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outlineColor: "rgba(255,255,255,0.9)"
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}
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})
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graphicLayer.addGraphic(conicSensor)
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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 getDynamicProperty() {
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// 该数据是由后端计算返回的轨道信息
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const wxkjx = [
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{
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time: "2021-01-01T12:08:20Z",
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x: -143.774623333805,
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y: 27.7998266828718,
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z: 1118477.29262629
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},
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{
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time: "2021-01-01T12:11:40Z",
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x: -146.56364947549,
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y: 38.8612791867078,
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z: 1121731.48352323
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},
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{
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time: "2021-01-01T12:15:00Z",
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x: -150.074587947037,
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y: 49.8538696199919,
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z: 1125266.75027392
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},
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{
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time: "2021-01-01T12:18:20Z",
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x: -155.164247872234,
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y: 60.7243205344318,
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z: 1128555.88185048
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},
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{
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time: "2021-01-01T12:21:40Z",
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x: -164.565295557077,
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y: 71.3021698947674,
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z: 1131111.78312013
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},
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{
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time: "2021-01-01T12:25:00Z",
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x: 168.08311253827,
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y: 80.6216347342535,
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z: 1132558.81749868
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}
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]
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const property = new Cesium.SampledPositionProperty()
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property.forwardExtrapolationType = Cesium.ExtrapolationType.HOLD
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for (let z = 0; z < wxkjx.length; z++) {
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const item = wxkjx[z]
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const thisTime = Cesium.JulianDate.fromIso8601(item.time)
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const position = Cesium.Cartesian3.fromDegrees(item.x, item.y, item.z)
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// 添加每一个链接点的信息，到达的时间以及坐标位置
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property.addSample(thisTime, position)
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}
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property.setInterpolationOptions({
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interpolationDegree: 2,
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interpolationAlgorithm: Cesium.LagrangePolynomialApproximation
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})
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return property
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}
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