ources/'
      let viewer = new DC.Viewer('viewer-container')
      let baseLayer = DC.ImageryLayerFactory.createImageryLayer(
        DC.ImageryType.AMAP,
        {
          style: 'img',
          crs: 'WGS84',
        }
      )
      viewer.addBaseLayer(baseLayer, {
        brightness: 0.1,
      })
      let layer = new DC.PrimitiveLayer('layer')
      viewer.addLayer(layer)

      let wall = new DC.DiffuseWallPrimitive('121.121,31.122', 2000, 1000)
      wall.setStyle({
        color: DC.Color.YELLOW,