Bulding a hole in a map


I`d like to add the 3D model of a road in a map. In order to do it, the road outline must be cut of the map (build a hole). Is there any way to cut a map using a generic (concave) polygon (the outline of the road in this case) ?

Thank you.

Yes! You can do this with clipping planes. Check out this Sandcastle example:

You’ll just define your polygon as a list of planes. Let me know if that works.