3dscenelayer.json

3dscenelayer.json是一种用于构建三维场景的JSON文件格式。它包含一个场景中的所有元素的描述，如地形、建筑、道路、树木、灯光等等。3dscenelayer.json文件可以与Esri的ArcGIS平台集成，实现高效的三维可视化效果。

{
  "operationalLayers": [
    {
      "id": "3d-buildings","type": "3d","url": "http://server.arcgisonline.com/arcgis/rest/services/Buildings/BuildingDowntown3D/MapServer","visible": true,"opacity": 1.0,"title": "Buildings"
    },{
      "id": "streets","url": "https://tiles.arcgis.com/tiles/C8EMgrsFcRFL6LrL/arcgis/rest/services/NYCStreets/Sceneserver/layers/0"
      "visible": true,"title": "Streets"
    }
  ],"baseMap": {
    "baseMapLayers": [
      {
        "id": "World_Topo_Map_0","url": "http://services.arcgisonline.com/ArcGIS/rest/services/World_Topo_Map/MapServer"
      }
    ],"id": "World_Topo_Map","title": "Topographic"
  },"version": "1.0"
}

以上是一个3dscenelayer.json文件的示例。在这个文件中，"operationalLayers"指定了场景中的操作性图层，例如建筑、街道等等。每个图层都有一个唯一的"id"、类型"type"、URL链接"url"、可见性"visible"和标题"title"。"baseMap"指定了基础地图层，它们通常用于为场景提供背景。

3dscenelayer.json文件可以通过ArcGIS Online或ArcGIS Enterprise部署的Web Scene Viewer进行加载和查看。用户可以使用这个场景浏览器来探索三维场景，可以缩放、旋转、倾斜和漫游场景，体验真实的三维景象。