import * as mars3d from "mars3d"
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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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// 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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// 此处参数会覆盖config.json中的对应配置
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center: { lat: 6.148021, lng: 58.982029, alt: 42278441, heading: 220, pitch: -85 },
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cameraController: {
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zoomFactor: 3.0,
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minimumZoomDistance: 1000,
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maximumZoomDistance: 300000000,
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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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export const eventTarget = new mars3d.BaseClass() // 事件对象，用于抛出事件到面板中
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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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graphicLayer = new mars3d.layer.GraphicLayer()
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map.addLayer(graphicLayer)
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addSatellite()
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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 addSatellite() {
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graphicLayer.bindPopup(function (event) {
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const points = event.graphic.attr?.points
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if (!points) {
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return
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}
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// 单击轨迹连线上的点后，求该点对应的时间
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const positionDM = event.cartesian
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const val1 = points[0]
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const val2 = points[points.length - 1]
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const startTime = Cesium.JulianDate.toDate(val1.time)
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const endTime = Cesium.JulianDate.toDate(val2.time)
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const len1 = Math.abs(Cesium.Cartesian3.distance(positionDM, val1.position))
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const len2 = Math.abs(Cesium.Cartesian3.distance(positionDM, val2.position))
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const adds = (len1 / (len1 + len2)) * (endTime.getTime() - startTime.getTime()) // 求按距离比例的时间增加值
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const currentTime = new Date(startTime.getTime() + adds)
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const inthtml = "单击处时间：" + mars3d.Util.formatDate(currentTime, "yyyy-MM-dd HH:mm:ss")
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return inthtml
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})
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const weixin = new mars3d.graphic.Satellite({
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name: "GAOFEN 1",
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tle1: "1 39150U 13018A 21180.50843864 .00000088 00000-0 19781-4 0 9997",
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tle2: "2 39150 97.8300 252.9072 0018449 344.7422 15.3253 14.76581022440650",
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model: {
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url: "//data.mars3d.cn/gltf/mars/weixin.gltf",
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scale: 1,
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minimumPixelSize: 90,
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autoHeading: true,
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show: true
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},
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label: {
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color: "#ffffff",
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opacity: 1,
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font_family: "楷体",
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font_size: 30,
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outline: true,
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outlineColor: "#000000",
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outlineWidth: 3,
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background: true,
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backgroundColor: "#000000",
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backgroundOpacity: 0.5,
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font_weight: "normal",
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font_style: "normal",
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pixelOffsetX: 0,
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pixelOffsetY: -20,
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scaleByDistance: true,
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scaleByDistance_far: 10000000,
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scaleByDistance_farValue: 0.4,
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scaleByDistance_near: 100000,
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scaleByDistance_nearValue: 1,
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show: true
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},
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cone: {
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sensorType: mars3d.graphic.SatelliteSensor.Type.Rect,
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angle1: 10,
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angle2: 5,
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color: "#6ef500",
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show: true
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},
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path: {
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show: true,
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color: "#00ff00",
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opacity: 0.5,
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width: 1
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}
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})
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map.graphicLayer.addGraphic(weixin)
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setTimeout(() => {
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weixin.flyTo({
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radius: 900000, // 距离目标点的距离
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pitch: -60 // 相机方向
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})
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}, 1000)
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const now = Cesium.JulianDate.toDate(map.clock.currentTime)
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const startTime = mars3d.Util.formatDate(now, "yyyy-MM-dd HH:mm:ss")
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now.setMinutes(now.getMinutes() + 60)
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const endTime = mars3d.Util.formatDate(now, "yyyy-MM-dd HH:mm:ss")
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eventTarget.fire("loadStatellite", { startTime, endTime })
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}
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export function btnAdd(data) {
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const weixin = map.graphicLayer.getGraphicByAttr("name", "GAOFEN 1")
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const startTime = data.startTime
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const endTime = data.endTime
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const areaColor = data.areaColor
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const slideOpacity = data.slideOpacity
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const slideAngle = data.slideAngle
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addTimeShading(weixin, {
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startTime: startTime,
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endTime: endTime,
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color: areaColor,
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opacity: slideOpacity,
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angle: slideAngle
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})
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}
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export function btnRemoveAll() {
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graphicLayer.clear()
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}
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export function changeColorOpacity(data) {
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graphicLayer.eachGraphic(function (graphic) {
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graphic.setColorStyle({ color: data.areaColor, opacity: data.slideOpacity })
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})
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}
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export function changeAngle(val) {
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const weixin = map.graphicLayer.getGraphicByAttr("name", "GAOFEN 1")
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if (val) {
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weixin.angle1 = val
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}
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}
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export function changeGuidaoS(valS) {
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updateVisibleForFaceNouth(true, valS)
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}
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export function changeGuidaoJ(valJ) {
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updateVisibleForFaceNouth(false, valJ)
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}
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// options参数包含：startTime开始时间，endTime结束时间，angle张开角度，color颜色，opacity透明度
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function addTimeShading(weixin, options) {
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graphicLayer.clear()
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const bt = new Date(options.startTime).getTime()
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const et = new Date(options.endTime).getTime()
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if (bt >= et) {
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globalMsg("开始时间需要小于结束时间。")
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return
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}
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const step = 2 * 60000
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const points = []
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const positions = []
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let temp_t = bt
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while (temp_t <= et) {
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const point = weixin.tle.getPoint(temp_t)
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if (!point) {
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break
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}
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const ground_pos = Cesium.Cartesian3.fromDegrees(point.lng, point.lat)
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positions.push(ground_pos)
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const time = Cesium.JulianDate.fromDate(new Date(temp_t))
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points.push({
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position: ground_pos,
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time: time,
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height: point.alt
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})
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temp_t += step
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}
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if (positions.length < 2) {
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globalMsg("没有该时间段内的轨迹数据。")
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return
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}
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let clr = Cesium.Color.fromCssColorString(options.color || "#ff0000").withAlpha(Number(options.opacity || 1.0))
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clr = Cesium.ColorGeometryInstanceAttribute.fromColor(clr)
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const geometryInstancesSG = [] // 升轨
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const geometryInstancesJG = [] // 降轨
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for (let i = 1; i < positions.length; i++) {
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const position1 = positions[i - 1]
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const position2 = positions[i]
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const height = points[i].height // 也可以取position2的高度
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const shadingWidth = height * Math.tan(Cesium.Math.toRadians(options.angle)) * 2 // 根据卫星角度求其带宽度
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const instance = new Cesium.GeometryInstance({
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geometry: new Cesium.CorridorGeometry({
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vertexFormat: Cesium.VertexFormat.POSITION_ONLY,
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positions: [position1, position2],
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width: shadingWidth,
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cornerType: Cesium.CornerType.MITERED // 指定转角处样式
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}),
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attributes: {
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color: clr
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}
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})
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// 重要：绑定相关属性
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instance.attr = {
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points: [points[i - 1], points[i]]
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}
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const hp = mars3d.PointUtil.getHeadingPitchRollForLine(position1, position2)
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if (hp.heading > 0) {
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geometryInstancesSG.push(instance)
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} else {
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geometryInstancesJG.push(instance)
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}
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}
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// 升轨
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if (geometryInstancesSG.length > 0) {
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const primitiveSG = new mars3d.graphic.BaseCombine({
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instances: geometryInstancesSG
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})
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primitiveSG.isFaceNouth = true
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graphicLayer.addGraphic(primitiveSG)
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}
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// 降轨
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if (geometryInstancesJG.length > 0) {
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const primitiveJG = new mars3d.graphic.BaseCombine({
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instances: geometryInstancesJG
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})
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primitiveJG.isFaceNouth = false
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graphicLayer.addGraphic(primitiveJG)
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}
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}
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// 升降轨类型筛选
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function updateVisibleForFaceNouth(isFaceNouth, show) {
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graphicLayer.eachGraphic(function (graphic) {
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if (isFaceNouth && graphic.isFaceNouth) {
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graphic.show = show
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}
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if (!isFaceNouth && !graphic.isFaceNouth) {
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graphic.show = show
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}
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})
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}
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