skccccc

How to set "CLAMP_TO_GROUND" option for circle and polygons like: `heightReference: Cesium.HeightReference.CLAMP_TO_GROUND` OR `height: Cesium.HeightReference.CLAMP_TO_GROUND`

As glfx is using webgl inside it, i'm not able to perform zoom in/out functionality in the canvas on which images are getting change on every second.