.NET Geometry library [closed]

Answer 1

I assume you're looking for something for WinForms. If you haven't looked into WPF yet, the functionality that you mentioned is all available there. Plus you could always host a WPF Control in a WinForms program.

Answer 2

We are using sgCore in our 3D programs. Beautiful library. We are purchased full sourcescodes - very clear code inside.

Answer 3

Have you looked at this? http://dotspatial.codeplex.com/

Or

NetTopologySuite https://github.com/NetTopologySuite/NetTopologySuite