cesium给点添加动态扩展源

let that = this;
      let dataSource = new Cesium.CustomDataSource('importantHasStationCollapse');
      dataSourcesArr.push({
        name:'importantHasStationCollapse',
        data:dataSource,
      })
      viewer.dataSources.add(dataSource);
      dataSource.show = false;
      let hiddenData=that.$refs.hiddenTroubleArea.allHiddenPoint;
      for(let i=0;i<hiddenData.importantHasStationCollapse.length;i++) {
        let entity = hiddenData.importantHasStationCollapse[i];
        let lng=entity.longitudeDegree;
        let lat=entity.latitudeDegree;
        let x=1;
        let pixelSize = 30;
        let outLineOpacity = 0.2;
        let outLineFlog = true;
        let pixelSizeFlog = true;
        let flog=true;
        dataSource.entities.add({
          position: Cesium.Cartesian3.fromDegrees(lng, lat, 6000),//标签的位置
          point : {
            show : true, // default
            color :new Cesium.CallbackProperty(function () {
              if(flog){
                x=x-0.03;
                if(x<=0){
                  flog=false;
                }
              }else{
                x=x+0.03;
                if(x>=1){
                  flog=true;
                }
              }
              return Cesium.Color.YELLOW.withAlpha(x);
            },false),
            pixelSize : new Cesium.CallbackProperty((time, result) => {
              return pixelSizeFlog ? (pixelSize += 2,
              pixelSize >= 30 && (pixelSizeFlog = false)) : (pixelSize = 10,
                  pixelSizeFlog = true),
                  pixelSize
            }, false),
            outlineColor: new Cesium.CallbackProperty(() => {
              return outLineFlog ? (outLineOpacity -= .035,
              outLineOpacity <= 0 && (outLineFlog = false)) : (outLineOpacity = .7,
                  outLineFlog = true),
                  Cesium.Color.RED.withAlpha(outLineOpacity)
            }, false),
            outlineWidth :30,
            scaleByDistance: new Cesium.NearFarScalar(1200, 1, 5200, 0.4),
          },
          billboard:{
            image: require('@/assets/bigScreen/geologic/崩塌_重要_绑定监测站.png'),
            width: 48,
            height: 46,
            horizontalOrigin: Cesium.HorizontalOrigin.CENTER,
            verticalOrigin: Cesium.VerticalOrigin.BOTTOM,
            // scale: 0.3,
          },
          type: 'text'//自定义属性
        });
      }