CombinedGeometry/Geometry.Combine() equivalent in Silverlight

Geometry class in WPF contai开发者_StackOverflow中文版ns a Combine() method which is extremely useful when you need to exclude one geometry from the other, etc. Silverlight version of Geometry doesn't have such a method. The same goes for CombinedGeometry class which does the same.

Are there any other options to exclude one geometry from another in Silverlight?

I'm working on a WPF app which builds user-defined masks using Combine. If there's no answer in SL 4 (none I can see) then my fallback is to send the raw geometry back to the server for combination

I may be very late to answer this question ;-) there is an option called GeometryGroup. You may use this to exclude one geometry from other in Silverlight. You are required to set FillRule="EvenOdd".