{
  "map3d": {
    "scene": {
      "center": {
        "lat": 40.797516,
        "lng": 114.583201,
        "alt": 465202,
        "heading": 6,
        "pitch": -90
      },
      "contextOptions": {
        "webgl": {
          "preserveDrawingBuffer": true
        }
      },
      "scene3DOnly": false,
      "shadows": false,
      "removeDblClick": true,
      "sceneMode": 3,
      "showSun": true,
      "showMoon": true,
      "showSkyBox": true,
      "showSkyAtmosphere": true,
      "fog": true,
      "fxaa": true,
      "requestRenderMode": true,
      "globe": {
        "depthTestAgainstTerrain": false,
        "baseColor": "#546a53",
        "showGroundAtmosphere": true,
        "enableLighting": false
      },
      "cameraController": {
        "zoomFactor": 3.0,
        "minimumZoomDistance": 1,
        "maximumZoomDistance": 50000000,
        "enableRotate": true,
        "enableTranslate": true,
        "enableTilt": true,
        "enableZoom": true,
        "enableCollisionDetection": true,
        "minimumCollisionTerrainHeight": 15000
      }
    },
    "control": {
      "homeButton": false,
      "baseLayerPicker": false,
      "sceneModePicker": false,
      "vrButton": false,
      "fullscreenButton": false,
      "navigationHelpButton": false,
      "animation": false,
      "timeline": false,
      "infoBox": false,
      "geocoder": false,
      "selectionIndicator": false,
      "distanceLegend": true
    },
    "basemaps": [
      {
        "id": 2021,
        "name": "三维影像",
        "type": "xyz",
        "_comment": "更改url地图地址，'crs': 'EPSG:4490'是投影坐标系",
        "url": "https://services.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer/tile/{z}/{y}/{x}",
        "show": true
      },
      {
        "id": 2022,
        "name": "二维影像",
        "type": "gaode",
        "_comment": "更改url地图地址，'crs': 'EPSG:4490'是投影坐标系",
        "url": "/img/basemaps/gaode_vec.png",
        "layer": "vec",
        "show": false
      }
    ],
    "layers": []
  }
}