使用产品：iclient3D WebGL
问题详细描述：在SCENE3D中添加面状或线状entities后，场景切换为COLUMBUS_VIEW或SCENE2D时报错。
问题重现步骤：1、在http://support.supermap.com.cn:8090/webgl/examples/webgl/editor.html#bingMap 基础上更改代码如下：
function onload(Cesium) {
//使用BingMap影像服务初始化viewer部件
var viewer = new Cesium.Viewer('cesiumContainer',{navigation: false,
sceneModePicker: true});
viewer.imageryLayers.addImageryProvider(new Cesium.BingMapsImageryProvider({
key : URL_CONFIG.BING_MAP_KEY,//可至官网（https://www.bingmapsportal.com/）申请key
url : URL_CONFIG.BINGMAP
}));
$('#loadingbar').remove();
addPolygon(viewer);
addPolyline(viewer);
}
function addPolygon(viewer){
var entity1 = viewer.entities.add({
name: "polylgon",
polygon: {
hierarchy: Cesium.Cartesian3.fromDegreesArray([
107.959096,
33.219525,
108.9597922,
33.21952,
108.959757,
34.2190098,
107.959091,
34.219045
]),
// extrudedHeight: 0,//面拉伸高度
material: Cesium.Color.YELLOW.withAlpha(0.3),
outline: true,
outlineColor: Cesium.Color.YELLOW,
arcType: Cesium.ArcType.RHUMB,
clampToGround: true
}
});
viewer.zoomTo(entity1);
}
function addPolyline(viewer){
var entity2 = viewer.entities.add({
name: "polyline",
polyline: {
positions: Cesium.Cartesian3.fromDegreesArray([107.958521,34.219594,108.959729,34.219627,107.958521,33.219594]),
width: 5,
clampToGround: true,
material: new Cesium.PolylineOutlineMaterialProperty({
color: Cesium.Color.ORANGE,
outlineWidth: 2,
outlineColor: Cesium.Color.BLACK,
}),
}
});
viewer.zoomTo(entity2);
}
if (typeof Cesium !== 'undefined') {
window.startupCalled = true;
onload(Cesium);
}
2、从三维视图切换到二维视图或哥伦布视图时，只调用addPolyline时提示异常如下：
只调用addPolygon时错误类似，cannot set property 'owner' of undefined
