      material.diffuse = vec3(temp.rgb + temp.rgb * (1.0 - diff)) ;
       }
      `,
      })
      build.setCustomShader(customShader)
      layer_build.addOverlay(build)
      let layer = new DC.VectorLayer('layer').addTo(viewer)
      let center = DC.Position.fromObject({
        lng: 121.49536592256028,
        lat: 31.241616722278213,
      })
      let circle = new DC.Circle(center, 3000)
      circle.setStyle({
        material: new DC.RadarLineMaterialProperty({
          color: new DC.Color(0, 1.0