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| import * as mars3d from "mars3d"
|
| export let map // mars3d.Map三维地图对象
| let graphicLayer // 矢量图层对象
|
| // 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 = function (option) {
| option.scene.center = { lat: 31.265081, lng: 116.103599, alt: 6178, heading: 348, pitch: -54 }
| delete option.terrain
| return option
| }
|
| /**
| * 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
|
| addEntity()
| }
|
| /**
| * 释放当前地图业务的生命周期函数
| * @returns {void} 无
| */
| export function onUnmounted() {
| map = null
| }
|
| function addEntity() {
| // 创建矢量数据图层
| graphicLayer = new mars3d.layer.GraphicLayer()
| map.addLayer(graphicLayer)
|
| // 飞行区域边界线
| const graphic = new mars3d.graphic.PolygonEntity({
| positions: [
| [116.069898, 31.303655],
| [116.098708, 31.322126],
| [116.108063, 31.311256],
| [116.079317, 31.292959],
| [116.069898, 31.303655]
| ],
| style: {
| color: "#ffff00",
| outline: true,
| outlineWidth: 3,
| outlineColor: "#00ff00"
| }
| })
| graphicLayer.addGraphic(graphic)
|
| graphic.startFlicker({
| time: 3, // 闪烁时长（秒）
| onEnd: function () {
| // 结束后自动移除
| graphic.style = { fill: false }
|
| workPlane.activate() // 闪烁结束后开始飞行
| }
| })
| }
|
| const workPlane = {
| flySpeed: 600, // 飞行速度
| psNum: 400, // 投射间隔路程
| frameNum: 0,
| arr4LinePrimitive: [],
| arrColor: [new Cesium.Color(1.0, 0.0, 0.0, 0.3), new Cesium.Color(0.0, 1.0, 0, 0.3), new Cesium.Color(0.0, 0.0, 1, 0.3)],
| // 激活功能
| activate() {
| // 飞行路线
| this.roamLine = new mars3d.graphic.RoamLine({
| name: "无人机航拍",
| speed: this.flySpeed,
| positions: [
| [116.077374, 31.294215, 1000],
| [116.107153, 31.312963, 1000],
| [116.103816, 31.316868, 1000],
| [116.074092, 31.297972, 1000],
| [116.07068, 31.301908, 1000],
| [116.100465, 31.320893, 1000]
| ],
| model: {
| url: "//data.mars3d.cn/gltf/mars/wrj.glb",
| scale: 0.02,
| minimumPixelSize: 50,
| show: true
| },
| path: {
| color: "#ffff00",
| width: 3,
| isAll: false,
| show: true
| },
| clockLoop: false // 是否循环播放
| })
| graphicLayer.addGraphic(this.roamLine)
|
| this.roamLine.start()
| this.roamLine.on(mars3d.EventType.end, this.disable, this)
|
| // 视角切换（分步执行）
| map.setCameraViewList([
| {
| lat: 31.261244,
| lng: 116.087805,
| alt: 4571.19,
| heading: 2.3,
| pitch: -45.4,
| roll: 357.6,
| stop: 4
| },
| {
| lat: 31.299649,
| lng: 116.129938,
| alt: 2725.83,
| heading: 290.2,
| pitch: -34,
| roll: 358.1,
| stop: 4
| },
| {
| lat: 31.288891,
| lng: 116.106146,
| alt: 4268.26,
| heading: 325.4,
| pitch: -55.7,
| roll: 357.5
| }
| ])
|
| this.stepNum = Math.floor(this.psNum / (this.flySpeed / 100)) // 时间 = 路程 / 速度
| map.on(mars3d.EventType.clockTick, this.clock_onTick, this) // 时钟跳动 每秒钟执行一次函数 场景事件
| },
| clock_onTick(e) {
| if (!map.clock.shouldAnimate) {
| return
| }
| this.frameNum++
|
| // 当前的路线中的点位
| const currIndex = this.roamLine.currIndex // 当前飞行的线路,共五条线，从零开始
|
| if (currIndex % 2 === 0) {
| if (this.frameNum % this.stepNum === 0) {
| // 计算方向
| let p1, p2
| if (currIndex === 0 || !currIndex) {
| p1 = this.roamLine.positions[0]
| p2 = this.roamLine.positions[1]
| } else {
| p1 = this.roamLine.positions[currIndex + 1]
| p2 = this.roamLine.positions[currIndex]
| }
| if (!p1 || !p2) {
| return
| }
| // 获取起点坐标到终点坐标的 Heading Pitch Roll方向角度值
| const hpr = mars3d.PointUtil.getHeadingPitchRollForLine(p1, p2)
| // 将弧度转换为度
| const heading = Cesium.Math.toDegrees(hpr.heading)
|
| // 添加四棱锥体线
| const graphicFrustum = new mars3d.graphic.FrustumPrimitive({
| position: this.roamLine.position,
| style: {
| angle: 15,
| angle2: 12,
| heading: heading,
| length: Cesium.Cartographic.fromCartesian(this.roamLine.position).height,
| fill: false,
| outline: true,
| outlineColor: "#ffffff",
| outlineOpacity: 1.0
| },
| asynchronous: false,
| flat: true
| })
| graphicLayer.addGraphic(graphicFrustum)
| this.arr4LinePrimitive.push(graphicFrustum)
| }
| if (this.frameNum % this.stepNum === 10) {
| // 移除四棱锥体线 保持只有一个椎体线
| if (this.arr4LinePrimitive.length > 0) {
| graphicLayer.removeGraphic(this.arr4LinePrimitive.shift())
| }
| }
| }
|
| if (this.frameNum % this.stepNum === 0 && currIndex % 2 === 0) {
| if (this.arr4LinePrimitive.length > 0) {
| const graphicFrustum = this.arr4LinePrimitive[this.arr4LinePrimitive.length - 1]
| // 地面的4个顶点坐标
| const positions = graphicFrustum.getRayEarthPositions()
| // 添加地面矩形
| const primitive = new mars3d.graphic.PolygonPrimitive({
| positions: positions,
| style: {
| color: this.arrColor[graphicLayer.length % this.arrColor.length],
| zIndex: graphicLayer.length
| }
| })
| graphicLayer.addGraphic(primitive)
| }
| }
| },
| // 释放功能
| disable() {
| map.off(mars3d.EventType.clockTick, this.clock_onTick, this) // 时钟跳动 每秒钟执行一次函数 场景事件
| this.roamLine.stop()
|
| this.arr4LinePrimitive = []
| this.frameNum = 0
| }
| }
|
|
