代碼效果

1. 獲取 TLE 數據

TLE 數據獲取地址：https://www.space-track.org/#catalog

TLE 數據示例

1 53999U 22125AM 22295.25001157 .00045000 00000-0 32366-3 0 9990 2 53999 53.2195 10.9850 0002252 14.3368 189.3658 15.73174633 2957

2. 生成 czml 數據

const data = [{id: 'document',name: 'CZML Point - Time Dynamic',version: '1.0',clock: {interval: `${startTime}/${endTime}`,multiplier: 1,range: 'LOOP_STOP',step: 'SYSTEM_CLOCK'}} ];for (const spacecraft of satellites) {const tleLine = spacecraft.tle;const res = []; // result for positionconst satrec = satelliteJs.twoline2satrec(tleLine[0], tleLine[1]); // Set satrecconst initialTime = moment().toISOString(); // start date of TLE// tle 星歷時間const initialSec = moment(initialTime).unix();const startSec = moment(startTime).unix();const endSec = moment(endTime).unix();// 基于開始時間和結束時間,生成對應的軌道位置數據data.push({id: `${spacecraft.code}`,name: `${spacecraft.code}`,availability: `${startTime}/${endTime}`,description: 'Insert the altitude here??',label: {fillColor: {rgba: [255, 0, 255, 255]},font: '11pt Lucida Console',horizontalOrigin: 'LEFT',outlineColor: {rgba: [0, 0, 0, 255]},outlineWidth: 2,pixelOffset: {cartesian2: [12, 0]},show: true,style: 'FILL_AND_OUTLINE',text: `${spacecraft.code}`,verticalOrigin: 'CENTER'},path: {show: [{interval: `${initialTime}/${endTime}`,boolean: true}],width: 1,material: {solidColor: {color: {rgba: [255, 255, 0, 255]}}},resolution: 120,leadTime: 2850,trailTime: 2850},billboard: {horizontalOrigin: 'CENTER',image:'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAADJSURBVDhPnZHRDcMgEEMZjVEYpaNklIzSEfLfD4qNnXAJSFWfhO7w2Zc0Tf9QG2rXrEzSUeZLOGm47WoH95x3Hl3jEgilvDgsOQUTqsNl68ezEwn1vae6lceSEEYvvWNT/Rxc4CXQNGadho1NXoJ+9iaqc2xi2xbt23PJCDIB6TQjOC6Bho/sDy3fBQT8PrVhibU7yBFcEPaRxOoeTwbwByCOYf9VGp1BYI1BA+EeHhmfzKbBoJEQwn1yzUZtyspIQUha85MpkNIXB7GizqDEECsAAAAASUVORK5CYII=',pixelOffset: {cartesian2: [0, 0]},scale: 2,show: true,verticalOrigin: 'CENTER'},position: {interpolationAlgorithm: 'LAGRANGE',interpolationDegree: 2,referenceFrame: 'INERTIAL',epoch: `${initialTime}`,cartesian: res}}); } return data;

3. Cesium 加載數據

const data = createCzmlData(); const dataSource = Cesium.CzmlDataSource.load(data); window.CesiumViewer.dataSources.add(dataSource); window.CesiumViewer.clock.multiplier = 1; window.CesiumViewer.clock.shouldAnimate = true;

完整項目代碼，請vx搜索：shiji_vx 獲取

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