feat: 添加轨道生成演示功能
This commit is contained in:
严浩
@ -1,29 +1,23 @@
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// TODO: 干掉 api.cesium.com
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// XXX: ion-sdk ？？？
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import * as Cesium from 'cesium';
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import 'cesium/Build/Cesium/Widgets/widgets.css';
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// Cesium.Ion.defaultAccessToken =
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// 'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJqdGkiOiJiYjZmMWM4Ny01YzQ4LTQ3MzUtYTI5Mi1hNTgyNjdhMmFiMmMiLCJpZCI6NjIwMjgsImlhdCI6MTYyNjY3MTMxNX0.5SelYUyzXWRoMyjjFvmFIAoPtWlJPQMjsVl2e_jQe-c';
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Object.assign(window, { Cesium });
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export function cesium_init() {
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// 复写原型方法 用于timeline组件日期格式化；
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// @ts-expect-error node_modules/@cesium/widgets/Source/Timeline/Timeline.js
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Cesium.Timeline.prototype.makeLabel = function (time) {
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const minutes = 0 - new Date().getTimezoneOffset();
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const dataZone8 = Cesium.JulianDate.addMinutes(time, minutes, new Cesium.JulianDate());
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return Cesium.JulianDate.toIso8601(dataZone8).slice(0, 19);
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};
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_configureCesium();
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// cesium-viewer-bottom
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const viewer = new Cesium.Viewer('cesiumContainer', {
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animation: true, // 是否创建动画小部件
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// globe: false, // 地球
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baseLayerPicker: true,
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export function cesium_init(container: Element) {
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const viewer = new Cesium.Viewer(container, {
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animation: true, // .cesium-viewer-animationContainer https://cesium.com/learn/ion-sdk/ref-doc/Animation.html
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baseLayerPicker: !true,
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fullscreenButton: !true, // 全屏按钮
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geocoder: true, // = IonGeocodeProviderType.DEFAULT] - 在使用Geocoder小部件进行搜索时使用的地理编码服务或服务。如果设置为false，则不会创建Geocoder小部件。
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geocoder: !true, // = IonGeocodeProviderType.DEFAULT] - 在使用Geocoder小部件进行搜索时使用的地理编码服务或服务。如果设置为false，则不会创建Geocoder小部件。
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// globe: false, // 地球
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homeButton: true, // Home按钮
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infoBox: true, // InfoBox小部件。
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navigationHelpButton: !true, // 是否显示导航帮助按钮
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infoBox: false, // InfoBox小部件。
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navigationHelpButton: false, // 是否显示导航帮助按钮
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orderIndependentTranslucency: false, // 顺序无关透明度
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projectionPicker: !true, // 投影选择器
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requestRenderMode: !true, // 如果为真，渲染帧将仅在场景内部发生变化时需要时发生。启用此功能可以减少应用程序的CPU/GPU使用率，并在移动设备上节省更多电量，但在此模式下需要使用{@link Scene#requestRender}显式渲染新帧。在API的其他部分对场景进行更改后，在许多情况下都需要这样做。请参阅{@link https://cesium.com/blog/2018/01/24/cesium-scene-rendering-performance/|使用显式渲染提高性能}。
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@ -33,51 +27,87 @@ export function cesium_init() {
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/* animationContainer: !true, */
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/* timelineContainer: true, */
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/* bottomContainer: document.createElement('p'), // The DOM element or ID that will contain the bottomContainer. If not specified, the bottomContainer is added to the widget itself. */
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shouldAnimate: true,
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shouldAnimate: !true,
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showRenderLoopErrors: true, // 如果为真，当发生渲染循环错误时，此小部件将自动向用户显示包含错误的HTML面板。
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timeline: true, // If set to false, the Timeline widget will not be created.
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});
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/* if ($__DEV__) */ viewer.scene.debugShowFramesPerSecond = true;
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// 时间格式化
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const minutes = 0 - new Date().getTimezoneOffset(); // 0 - (-480);
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viewer.animation.viewModel.timeFormatter = function (date, _viewModel) {
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const dataZone8 = Cesium.JulianDate.addMinutes(date, minutes, new Cesium.JulianDate());
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return Cesium.JulianDate.toIso8601(dataZone8).slice(11, 19);
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};
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viewer.animation.viewModel.dateFormatter = function (date, _viewModel) {
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const dataZone8 = Cesium.JulianDate.addMinutes(date, minutes, new Cesium.JulianDate());
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return Cesium.JulianDate.toIso8601(dataZone8).slice(0, 10);
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};
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viewer.scene.debugShowFramesPerSecond = true;
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//高德卫星地图
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const gaoDeSatelliteImgLayer = new Cesium.UrlTemplateImageryProvider({
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maximumLevel: 18,
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minimumLevel: 3,
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tilingScheme: new Cesium.WebMercatorTilingScheme(),
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url: 'https://webst02.is.autonavi.com/appmaptile?style=6&x={x}&y={y}&z={z}',
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});
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_configureMapTile(viewer);
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const customLayerViewModel = new Cesium.ProviderViewModel({
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category: 'Cesium ion', // 或 'Other 、Cesium ion'、'Bing Maps' 等
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creationFunction: function () {
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return gaoDeSatelliteImgLayer;
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},
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iconUrl: 'gaodeImage.png',
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name: '高德地图',
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tooltip: '高德地图',
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});
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// 设置高德地图为默认图层
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viewer.baseLayerPicker.viewModel.imageryProviderViewModels.unshift(customLayerViewModel);
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const selectedViewModel = viewer.baseLayerPicker.viewModel.imageryProviderViewModels[0];
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viewer.baseLayerPicker.viewModel.selectedImagery = selectedViewModel;
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return viewer;
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}
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function _configureCesium() {
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/* 时间日期格式化 */ {
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const minutes = 0 - new Date().getTimezoneOffset(); // 0 - (-480);
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// Animation 的时间日期格式化
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Cesium.AnimationViewModel.defaultDateFormatter = function (date) {
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const dataZone8 = Cesium.JulianDate.addMinutes(date, minutes, new Cesium.JulianDate());
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return Cesium.JulianDate.toIso8601(dataZone8).slice(0, 10);
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};
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Cesium.AnimationViewModel.defaultTimeFormatter = function (time) {
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const dataZone8 = Cesium.JulianDate.addMinutes(time, minutes, new Cesium.JulianDate());
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return Cesium.JulianDate.toIso8601(dataZone8).slice(11, 19);
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};
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// Timeline 的时间日期格式化
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// @ts-expect-error node_modules/@cesium/widgets/Source/Timeline/Timeline.js
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Cesium.Timeline.prototype.makeLabel = function (time) {
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const dataZone8 = Cesium.JulianDate.addMinutes(time, minutes, new Cesium.JulianDate());
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return Cesium.JulianDate.toIso8601(dataZone8).slice(0, 19);
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};
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}
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// 默认视图区域
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Cesium.Camera.DEFAULT_VIEW_RECTANGLE = Cesium.Rectangle.fromDegrees(
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75.0, // 西经
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10.0, // 南纬
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140.0, // 东经
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60.0, // 北纬
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);
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return viewer;
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}
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function _configureMapTile(viewer: Cesium.Viewer) {
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const provider = new Cesium.UrlTemplateImageryProvider({
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maximumLevel: 18,
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minimumLevel: 3,
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url: 'https://webst02.is.autonavi.com/appmaptile?style=6&x={x}&y={y}&z={z}',
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});
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if (!viewer.baseLayerPicker) {
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// 如果没有底图选择器
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viewer.imageryLayers.removeAll();
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viewer.imageryLayers.addImageryProvider(provider);
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} else {
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// 如果有底图选择器
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const customLayerViewModel = new Cesium.ProviderViewModel({
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category: 'Cesium ion', // 或 'Other 、Cesium ion'、'Bing Maps' 等
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creationFunction: function () {
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return provider;
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},
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iconUrl: 'gaodeImage.png',
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name: '高德地图',
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tooltip: '高德地图',
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});
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// 设置高德地图为默认图层
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viewer.baseLayerPicker.viewModel.imageryProviderViewModels.unshift(customLayerViewModel);
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const selectedViewModel = viewer.baseLayerPicker.viewModel.imageryProviderViewModels[0];
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viewer.baseLayerPicker.viewModel.selectedImagery = selectedViewModel;
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}
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}
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function _flyToDemo(viewer: Cesium.Viewer) {
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// 将三维球定位到中国
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viewer.camera.flyTo({
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complete: function complete() {},
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destination: Cesium.Cartesian3.fromDegrees(103.84, 31.15, 17850000),
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orientation: {
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heading: Cesium.Math.toRadians(348.4202942851978),
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pitch: Cesium.Math.toRadians(-89.74026687972041),
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roll: Cesium.Math.toRadians(0),
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},
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});
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}
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@ -3,7 +3,7 @@ import type { Viewer } from 'cesium';
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import * as Cesium from 'cesium';
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import { eciToEcf, gstime, propagate, twoline2satrec } from 'satellite.js';
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export async function demoOrbitGeneration(viewer: Viewer) {
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export async function demo_01_OrbitGeneration(viewer: Viewer) {
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const tle = `STARLINK-11371 [DTC]
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1 62879U 25024A 25062.93300820 .00003305 00000+0 21841-4 0 9995
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2 62879 42.9977 257.3937 0001725 269.2925 90.7748 15.77864921 5143`;
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@ -16,6 +16,7 @@ export async function demoOrbitGeneration(viewer: Viewer) {
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// 创建卫星记录
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const satrec = twoline2satrec(tleLine1, tleLine2);
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console.debug(`satrec :>> `, satrec);
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// 创建轨道点
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const pointsArray = [];
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214
src/pages/cesium/cesium-helper/demo_02_Track.ts
Normal file
214
src/pages/cesium/cesium-helper/demo_02_Track.ts
Normal file
@ -0,0 +1,214 @@
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import type { Viewer } from 'cesium';
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import * as Cesium from 'cesium';
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import { eciToEcf, gstime, propagate, twoline2satrec } from 'satellite.js';
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export async function demo_02_Track(viewer: Viewer) {
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const tle = `STARLINK-11371 [DTC]
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1 62879U 25024A 25062.93300820 .00003305 00000+0 21841-4 0 9995
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2 62879 42.9977 257.3937 0001725 269.2925 90.7748 15.77864921 5143`;
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// 解析TLE数据
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const lines = tle.split('\n');
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const satelliteName = lines[0].trim();
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const satrec = twoline2satrec(lines[1], lines[2]);
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// 创建卫星实体
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const satelliteEntity = viewer.entities.add({
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id: 'STARLINK-11371',
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label: {
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fillColor: Cesium.Color.WHITE,
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font: '14pt sans-serif',
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outlineColor: Cesium.Color.BLACK,
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outlineWidth: 2,
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pixelOffset: new Cesium.Cartesian2(0, -10),
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style: Cesium.LabelStyle.FILL_AND_OUTLINE,
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text: satelliteName,
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verticalOrigin: Cesium.VerticalOrigin.BOTTOM,
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},
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name: 'STARLINK-11371',
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// 卫星轨迹
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path: {
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material: new Cesium.PolylineGlowMaterialProperty({
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color: Cesium.Color.BLUE,
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glowPower: 0.2,
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}),
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resolution: 1,
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width: 2,
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},
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// 使用简单点图形表示卫星
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point: {
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color: Cesium.Color.YELLOW,
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outlineColor: Cesium.Color.WHITE,
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outlineWidth: 2,
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pixelSize: 10,
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},
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});
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// 计算并绘制卫星轨迹
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const totalSeconds = 60 * 60 * 2; // 2小时的轨迹
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const timeStepInSeconds = 30; // 每30秒一个点
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const startTime = Cesium.JulianDate.fromDate(new Date());
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const endTime = Cesium.JulianDate.addSeconds(startTime, totalSeconds, new Cesium.JulianDate());
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// 设置时钟范围
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viewer.clock.startTime = startTime.clone();
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viewer.clock.stopTime = endTime.clone();
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viewer.clock.currentTime = startTime.clone();
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viewer.clock.clockRange = Cesium.ClockRange.LOOP_STOP;
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viewer.clock.multiplier = 30; // 30倍速播放
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// 设置时间轴范围
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viewer.timeline.zoomTo(startTime, endTime);
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// 用于存储卫星位置的样本集合
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const positionProperty = new Cesium.SampledPositionProperty();
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// 用于存储轨道点的数组（用于显示完整轨道）
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const orbitPositions: Cesium.Cartesian3[] = [];
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// 保存卫星高度数据，用于覆盖范围计算
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let satelliteAltitude = 550000; // 默认高度为550公里
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// 计算轨道上的点
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for (let i = 0; i <= totalSeconds; i += timeStepInSeconds) {
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const time = Cesium.JulianDate.addSeconds(startTime, i, new Cesium.JulianDate());
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const jsDate = Cesium.JulianDate.toDate(time);
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// 计算卫星位置
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const positionAndVelocity = propagate(satrec, jsDate);
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if (typeof positionAndVelocity.position !== 'boolean') {
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const gmst = gstime(jsDate);
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const position = eciToEcf(positionAndVelocity.position, gmst);
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// 转换为Cesium坐标（单位：米）
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const cesiumPosition = new Cesium.Cartesian3(position.x * 1000, position.y * 1000, position.z * 1000);
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// 计算卫星高度
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const cartographic = Cesium.Cartographic.fromCartesian(cesiumPosition);
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satelliteAltitude = cartographic.height;
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// 保存位置用于绘制完整轨道
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orbitPositions.push(cesiumPosition);
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// 添加位置样本
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positionProperty.addSample(time, cesiumPosition);
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} else {
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console.error('Error calculating satellite position');
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}
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}
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// 添加完整轨道线
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viewer.entities.add({
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id: 'STARLINK-11371-orbit',
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name: 'STARLINK-11371 Full Orbit',
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polyline: {
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clampToGround: false,
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material: new Cesium.PolylineDashMaterialProperty({
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color: Cesium.Color.CYAN,
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dashLength: 8.0,
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}),
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positions: orbitPositions,
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width: 1,
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},
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});
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// 设置卫星的位置
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satelliteEntity.position = positionProperty;
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satelliteEntity.orientation = new Cesium.VelocityOrientationProperty(positionProperty);
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// 添加卫星覆盖范围
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// Starlink 卫星通常覆盖范围以锥形方式向地面投射
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// 创建一个椭球体来表示卫星的覆盖范围
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const coverageAngle = 45; // 覆盖角度（度）
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const coverageRadius = satelliteAltitude * Math.tan(Cesium.Math.toRadians(coverageAngle));
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// 创建覆盖范围实体
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const coverageEntity = viewer.entities.add({
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ellipsoid: {
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material: Cesium.Color.BLUE.withAlpha(0.2),
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outline: true,
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outlineColor: Cesium.Color.BLUE.withAlpha(0.8),
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radii: new Cesium.CallbackProperty(() => {
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const position = satelliteEntity.position?.getValue(viewer.clock.currentTime);
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if (!position) return new Cesium.Cartesian3(10000, 10000, 10000);
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// 获取当前卫星高度
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const cartographic = Cesium.Cartographic.fromCartesian(position);
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const height = cartographic.height;
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// 计算覆盖范围半径 (基于锥角)
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const coverageRadius = height * Math.tan(Cesium.Math.toRadians(coverageAngle));
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// 椭球体形状: xy平面为圆形基底，z轴方向为高度
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return new Cesium.Cartesian3(coverageRadius, coverageRadius, height / 2);
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}, false),
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slicePartitions: 24,
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stackPartitions: 16,
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},
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id: 'STARLINK-11371-coverage',
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name: 'STARLINK-11371 Coverage',
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||||
orientation: new Cesium.CallbackProperty(() => {
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// 确保椭球体始终指向地球中心
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const position = satelliteEntity.position?.getValue(viewer.clock.currentTime);
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if (!position) return Cesium.Transforms.eastNorthUpToFixedFrame(new Cesium.Cartesian3());
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// 计算从卫星到地球中心的方向
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const direction = Cesium.Cartesian3.normalize(
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Cesium.Cartesian3.negate(position, new Cesium.Cartesian3()),
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new Cesium.Cartesian3(),
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);
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return Cesium.Transforms.headingPitchRollQuaternion(position, new Cesium.HeadingPitchRoll(0, Math.PI, 0));
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}, false),
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position: positionProperty,
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});
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// 添加地面覆盖范围投影
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viewer.entities.add({
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ellipse: {
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granularity: Cesium.Math.toRadians(1.0),
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height: 0,
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material: Cesium.Color.BLUE.withAlpha(0.2),
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outline: true,
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outlineColor: Cesium.Color.BLUE.withAlpha(0.8),
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outlineWidth: 2,
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semiMajorAxis: new Cesium.CallbackProperty(() => {
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const satPosition = satelliteEntity.position?.getValue(viewer.clock.currentTime);
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if (!satPosition) return 10000;
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// 计算卫星高度
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const cartographic = Cesium.Cartographic.fromCartesian(satPosition);
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// 根据高度和覆盖角度计算地面覆盖半径
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return cartographic.height * Math.tan(Cesium.Math.toRadians(coverageAngle));
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}, false),
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semiMinorAxis: new Cesium.CallbackProperty(() => {
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const satPosition = satelliteEntity.position?.getValue(viewer.clock.currentTime);
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if (!satPosition) return 10000;
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||||
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||||
// 计算卫星高度
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const cartographic = Cesium.Cartographic.fromCartesian(satPosition);
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// 根据高度和覆盖角度计算地面覆盖半径
|
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return cartographic.height * Math.tan(Cesium.Math.toRadians(coverageAngle));
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}, false),
|
||||
},
|
||||
id: 'STARLINK-11371-ground-coverage',
|
||||
name: 'STARLINK-11371 Ground Coverage',
|
||||
position: new Cesium.CallbackPositionProperty(() => {
|
||||
const satPosition = satelliteEntity.position?.getValue(viewer.clock.currentTime);
|
||||
if (!satPosition) return new Cesium.Cartesian3();
|
||||
|
||||
// 计算卫星在地表的投影点
|
||||
const cartographic = Cesium.Cartographic.fromCartesian(satPosition);
|
||||
return Cesium.Cartesian3.fromRadians(cartographic.longitude, cartographic.latitude, 0);
|
||||
}, false),
|
||||
});
|
||||
|
||||
// 设置相机自动跟踪卫星
|
||||
viewer.trackedEntity = satelliteEntity;
|
||||
|
||||
// 开始动画
|
||||
viewer.clock.shouldAnimate = true;
|
||||
|
||||
return satelliteEntity;
|
||||
}
|
||||
@ -2,14 +2,16 @@
|
||||
import type { Viewer } from 'cesium';
|
||||
|
||||
import { cesium_init } from './cesium-helper/00.cesium-init';
|
||||
import { demoOrbitGeneration } from './cesium-helper/01.x';
|
||||
import { demo_01_OrbitGeneration } from './cesium-helper/demo_01_OrbitGeneration';
|
||||
import { demo_02_Track } from './cesium-helper/demo_02_Track';
|
||||
|
||||
let viewer: Viewer;
|
||||
onMounted(async () => {
|
||||
viewer = cesium_init();
|
||||
viewer = cesium_init(document.getElementById('cesiumContainer')!);
|
||||
Object.assign(globalThis, { viewer });
|
||||
|
||||
demoOrbitGeneration(viewer);
|
||||
// demo_01_OrbitGeneration(viewer);
|
||||
demo_02_Track(viewer);
|
||||
});
|
||||
</script>
|
||||
|
||||
|
||||
2
typed-router.d.ts
vendored
2
typed-router.d.ts
vendored
@ -21,7 +21,7 @@ declare module 'vue-router/auto-routes' {
|
||||
'Root': RouteRecordInfo<'Root', '/', Record<never, never>, Record<never, never>>,
|
||||
'$Path': RouteRecordInfo<'$Path', '/:path(.*)', { path: ParamValue<true> }, { path: ParamValue<false> }>,
|
||||
'AntdV': RouteRecordInfo<'AntdV', '/AntdV', Record<never, never>, Record<never, never>>,
|
||||
'API': RouteRecordInfo<'API', '/API', Record<never, never>, Record<never, never>>,
|
||||
'Api': RouteRecordInfo<'Api', '/api', Record<never, never>, Record<never, never>>,
|
||||
'Cesium': RouteRecordInfo<'Cesium', '/cesium', Record<never, never>, Record<never, never>>,
|
||||
'DataLoadersId': RouteRecordInfo<'DataLoadersId', '/data-loaders/:id', { id: ParamValue<true> }, { id: ParamValue<false> }>,
|
||||
'DataLoadersIdSub1UserId': RouteRecordInfo<'DataLoadersIdSub1UserId', '/data-loaders/:id/sub-1/:userId', { id: ParamValue<true>, userId: ParamValue<true> }, { id: ParamValue<false>, userId: ParamValue<false> }>,
|
||||
|
||||
Reference in New Issue
Block a user