text: // import * as mars3d from "mars3d"
  
  var map // mars3d.Map三维地图对象
  
  // 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）
  var mapOptions = {
    scene: {
      center: { lat: 11.135847, lng: 127.745201, alt: 24250944, heading: 53, pitch: -90 },
      mapMode2D: Cesium.MapMode2D.ROTATE, // 二三维场景切换黑影
      clock: {
        currentTime: "2021-01-01T11:55:00Z",
        multiplier: 150 // 速度
      },
      cameraController: {
        maximumZoomDistance: 9000000000,
        constrainedAxis: false // 解除在南北极区域鼠标操作限制
      }
    },
    control: {
      clockAnimate: true, // 时钟动画控制(左下角)
      timeline: true, // 是否显示时间线控件
      compass: { top: "10px", left: "5px" }
    }
  }
  
  /**
   * 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
   */
  function onMounted(mapInstance) {
    map = mapInstance // 记录map  map.toolbar.style.bottom = "55px"// 修改toolbar控件的样式
  
    addGraphicLayer()
  }
  
  /**
   * 释放当前地图业务的生命周期函数
   * @returns {void} 无
   */
  function onUnmounted() {
    map = null
  }
  
  function addGraphicLayer() {
    // 创建矢量数据图层
    const graphicLayer = new mars3d.layer.GraphicLayer()
    map.addLayer(graphicLayer)
    // 取数据
    const property = getDynamicProperty()
  
    // 绘制轨道
    const graphic = new mars3d.graphic.PathEntity({
      position: property,
      orientation: new Cesium.VelocityOrientationProperty(property),
      style: {
        leadTime: 0,
        resolution: 1,
        material: mars3d.MaterialUtil.createMaterialProperty(mars3d.MaterialType.PolylineGlow, {
          glowPower: 0.1,
          color: Cesium.Color.GREEN
        }),
        width: 10
      },
      model: {
        url: "//data.mars3d.cn/gltf/mars/weixin.gltf",
        scale: 1,
        minimumPixelSize: 90
      }
    })
    graphicLayer.addGraphic(graphic)
  
    // 视锥体 展示
    const satelliteSensor = new mars3d.graphic.SatelliteSensor({
      position: property,
      style: {
        sensorType: mars3d.graphic.SatelliteSensor.Type.Rect,
        angle1: 20,
        angle2: 10,
        pitch: 0,
        roll: 0,
        color: "rgba(110,245,0,0.5)"
      },
      trackedEntity: graphic,
      autoHeading: true // 是否自动角度，根据trackedEntity监听的卫星模型
    })
    graphicLayer.addGraphic(satelliteSensor)
  
    // satelliteSensor.trackedEntity = graphic
  }
  
  function getDynamicProperty() {
    // 该数据是由后端计算返回的轨道信息
    const wxdata = [
      {
        time: "2021-01-01T11:55:00Z",
        x: -134.648939681369,
        y: -16.7002098082909,
        z: 1116015.99646736
      },
      {
        time: "2021-01-01T11:58:20Z",
        x: -136.899721614564,
        y: -5.57109779324382,
        z: 1114660.42260167
      },
      {
        time: "2021-01-01T12:01:40Z",
        x: -139.097755346946,
        y: 5.5661675014342,
        z: 1114652.53771041
      },
      {
        time: "2021-01-01T12:05:00Z",
        x: -141.348494748721,
        y: 16.6953271278176,
        z: 1115992.62270236
      },
      {
        time: "2021-01-01T12:08:20Z",
        x: -143.774623333805,
        y: 27.7998266828718,
        z: 1118477.29262629
      },
      {
        time: "2021-01-01T12:11:40Z",
        x: -146.56364947549,
        y: 38.8612791867078,
        z: 1121731.48352323
      },
      {
        time: "2021-01-01T12:15:00Z",
        x: -150.074587947037,
        y: 49.8538696199919,
        z: 1125266.75027392
      },
      {
        time: "2021-01-01T12:18:20Z",
        x: -155.164247872234,
        y: 60.7243205344318,
        z: 1128555.88185048
      },
      {
        time: "2021-01-01T12:21:40Z",
        x: -164.565295557077,
        y: 71.3021698947674,
        z: 1131111.78312013
      },
      {
        time: "2021-01-01T12:25:00Z",
        x: 168.08311253827,
        y: 80.6216347342535,
        z: 1132558.81749868
      },
      {
        time: "2021-01-01T12:28:20Z",
        x: 90.2490230895946,
        y: 81.5572161531476,
        z: 1132686.79200749
      },
      {
        time: "2021-01-01T12:31:40Z",
        x: 57.1447486006726,
        y: 72.6931112200722,
        z: 1131480.71852334
      },
      {
        time: "2021-01-01T12:35:00Z",
        x: 46.6265974503472,
        y: 62.1897990251119,
        z: 1129122.78290078
      },
      {
        time: "2021-01-01T12:38:20Z",
        x: 41.1892143509244,
        y: 51.3446936437554,
        z: 1125966.29999715
      },
      {
        time: "2021-01-01T12:41:40Z",
        x: 37.5323471372029,
        y: 40.3652635518961,
        z: 1122484.77649625
      }
    ]
  
    const property = new Cesium.SampledPositionProperty()
    property.forwardExtrapolationType = Cesium.ExtrapolationType.HOLD
  
    for (let z = 0; z < wxdata.length; z++) {
      const item = wxdata[z]
  
      const thisTime = Cesium.JulianDate.fromIso8601(item.time)
      const position = Cesium.Cartesian3.fromDegrees(item.x, item.y, item.z)
  
      // 添加每一个链接点的信息，到达的时间以及坐标位置
      property.addSample(thisTime, position)
    }
    property.setInterpolationOptions({
      interpolationDegree: 2,
      interpolationAlgorithm: Cesium.LagrangePolynomialApproximation
    })
  
    return property
  }
  