              return undefined;
            }
            const json = await r.json();
            return json;
        }

        async function startup() {
            earth = new XE.Earth('earthContainer', {
                orderIndependentTranslucency: false,
            });

            earth.sceneTree.root = {
                "children": [
                    {
                        "czmObject": {
                            "name": "谷歌影像",
                            "xbsjTy