Question

使用产品：SuperMap_iClient3D_10i(2020)_sp1_for_WebGL 操作类型：win10 x64

问题详细描述：

添加道路尾迹线效果之后想要移除，触发viewer.dataSources.remove(roadSource)函数的时候控制台报错，并且移除失败

let promiseroute = Cesium.GeoJsonDataSource.load('XXX');
        promiseroute.then(function (roadSource) {
            roadSource.name = 'road_poly';
            viewer.dataSources.add(roadSource);
            var road = roadSource.entities.values;
            for (let i = 0; i < road.length; i++) {
                let line = road[i];
                line.polyline.material = new Cesium.PolylineTrailMaterialProperty({
                    color: 'XXX',
                    trailLength: 'XXX',
                    period: 'XXX',
                });
                line.polyline.width = 'XXX';
            }

      ......
      viewer.dataSources.remove(roadSource); //remove函数报错

补充：昨天有大大给我发了一个包，但是那个包会导致我的模型自发光纹理无法应用

hyp.emissionTextureArray = [
                  {
                    url:"../image/speedline.jpg",
                    USpeed:0.25,
                    VSpeed:0,
                    UTiling:100,
                    VTiling:100
                  }
                ]
              hyp.ColorTable = colorTable;
              setHypsometric1(layer_baimo, hyp);
            function setHypsometric1(layer, hyp) {
              layer.hypsometricSetting = {
                hypsometricSetting: hyp,
                analysisMode: Cesium.HypsometricSettingEnum.AnalysisRegionMode.ARM_ALL
              }
            }