import * as mars3d from "mars3d"
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import { $message } from "@mars/components/mars-ui/index"
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export let map // mars3d.Map三维地图对象
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export let graphicLayer // 矢量图层对象
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let selectedView
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let videoElement
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// 事件对象，用于抛出事件给面板
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export const eventTarget = new mars3d.BaseClass()
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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: 31.843062, lng: 117.205439, alt: 150, heading: 178, pitch: -75 },
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globe: {
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depthTestAgainstTerrain: true // 不加无法投射到地形上
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}
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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 // 记录首次创建的map
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// 添加参考三维模型
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const tiles3dLayer = new mars3d.layer.TilesetLayer({
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name: "合肥国家大学科技园",
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url: "//data.mars3d.cn/3dtiles/qx-hfdxy/tileset.json",
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position: { alt: -24 },
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maximumScreenSpaceError: 1,
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maximumMemoryUsage: 1024
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})
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map.addLayer(tiles3dLayer)
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// 创建Graphic图层
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graphicLayer = new mars3d.layer.GraphicLayer()
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map.addLayer(graphicLayer)
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createVideoDom()
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// 加一些演示数据
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addDemoGraphic1()
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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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// 加载已配置好的视频（此参数为界面上“打印参数”按钮获取的）
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function addDemoGraphic1() {
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const video3D = new mars3d.graphic.Video3D({
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position: [117.205457, 31.842984, 63.9],
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style: {
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container: videoElement,
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maskImage: "img/textures/video-mask.png", // 羽化视频四周，融合更美观
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angle: 46.3,
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angle2: 15.5,
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heading: 178.5,
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pitch: -49.5,
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showFrustum: true
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},
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attr: { remark: "示例1" }
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})
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graphicLayer.addGraphic(video3D)
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selectedView = video3D // 记录下
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eventTarget.fire("loadVideo", {
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value: {
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cameraAngle: selectedView.angle,
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cameraAngle2: selectedView.angle2,
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heading: selectedView.heading,
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pitchValue: selectedView.pitch,
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distanceValue: selectedView.distance,
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opcity: selectedView.opacity,
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ckdFrustum: selectedView.showFrustum
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}
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})
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}
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const flvUrl = "https://sf1-hscdn-tos.pstatp.com/obj/media-fe/xgplayer_doc_video/flv/xgplayer-demo-360p.flv"
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function createVideoDom() {
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videoElement = mars3d.DomUtil.create("video", "", document.body)
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videoElement.setAttribute("muted", "muted")
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videoElement.setAttribute("autoplay", "autoplay")
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videoElement.setAttribute("loop", "loop")
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videoElement.setAttribute("crossorigin", "")
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videoElement.setAttribute("controls", "")
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videoElement.style.display = "none"
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// 加FLV演示数据
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if (window.flvjs.isSupported()) {
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const flvPlayer = window.flvjs.createPlayer({
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type: "flv",
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url: flvUrl
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})
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flvPlayer.attachMediaElement(videoElement)
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flvPlayer.load()
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flvPlayer.play()
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} else {
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$message("不支持flv格式视频")
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}
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setTimeout(() => {
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try {
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if (videoElement.paused) {
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globalMsg("当前浏览器已限制自动播放，请单击播放按钮")
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videoElement.play()
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}
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} catch (e) {
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// 规避浏览器权限异常
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globalMsg("当前浏览器已限制自动播放，请单击播放按钮")
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}
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}, 3000)
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}
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export function onChangeAngle(value) {
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if (selectedView) {
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selectedView.angle = value
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}
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}
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export function onChangeAngle2(value) {
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if (selectedView) {
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selectedView.angle2 = value
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}
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}
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export function onChangeDistance(value) {
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if (selectedView) {
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selectedView.distance = value
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}
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}
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export function onChangeHeading(value) {
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if (selectedView) {
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selectedView.heading = value
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}
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}
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export function onClickSelView() {
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if (!selectedView) {
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return
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}
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map.graphicLayer.startDraw({
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type: "point",
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success: (graphic) => {
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const point = graphic.point
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graphic.remove() // 删除绘制的点
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selectedView.targetPosition = point
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}
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})
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}
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export function onChangePitch(value) {
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if (selectedView) {
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selectedView.pitch = value
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}
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}
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// 透明度
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export function onChangeOpacity(value) {
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if (selectedView) {
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selectedView.opacity = value
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}
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}
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// 添加投射视频
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export function addVideo(data) {
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// 开始绘制
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graphicLayer.startDraw({
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type: "video3D",
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style: {
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container: videoElement,
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angle: data.cameraAngle,
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angle2: data.cameraAngle2,
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heading: data.heading,
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pitch: data.pitchValue,
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distance: data.distanceValue,
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showFrustum: data.ckdFrustum
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},
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success: function (graphic) {
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console.log("绘制完成", graphic)
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selectedView = graphic // 记录下
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}
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})
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}
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// 按当前视角投射视频
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export function addThisCamera(data) {
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// 取屏幕中心点
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const targetPosition = map.getCenter({ format: false })
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if (!targetPosition) {
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return
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}
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const cameraPosition = Cesium.clone(map.camera.position)
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// 构造投射体
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const video3D = new mars3d.graphic.Video3D({
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position: cameraPosition,
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targetPosition: targetPosition,
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style: {
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container: videoElement,
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angle: data.cameraAngle,
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angle2: data.cameraAngle2,
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heading: data.heading,
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pitch: data.pitchValue,
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distance: data.distanceValue,
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opacity: data.opcity,
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showFrustum: data.showFrustum
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}
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})
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graphicLayer.addGraphic(video3D)
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selectedView = video3D // 记录下
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}
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// 清除
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export function clear() {
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graphicLayer.clear()
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selectedView = null
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}
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// 播放暂停
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export function playOrpause() {
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if (!selectedView) {
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return
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}
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selectedView.play = !selectedView.play
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}
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// 定位至视频位置
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export function locate() {
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if (selectedView) {
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selectedView.setView()
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}
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}
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// 打印参数
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export function printParameters() {
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if (!selectedView) {
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return
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}
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const params = JSON.stringify(selectedView.toJSON())
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console.log("Video3D构造参数为", params)
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}
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// 线框是否显示
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export function showFrustum(ckd) {
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if (!selectedView) {
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return
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}
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selectedView.showFrustum = ckd
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}
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// 视频位置
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export function selCamera() {
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if (!selectedView) {
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return
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}
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map.graphicLayer.startDraw({
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type: "point",
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success: (graphic) => {
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const point = graphic.point
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graphic.remove() // 删除绘制的点
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selectedView.position = point
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}
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})
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}
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