geometry3Sharp,这个怎么用,知道sample在哪里吗[/quote]
[Mesh Creation and Spatial Queries with g3Sharp](http://www.gradientspace.com/tutorials/2017/7/20/basic-mesh-creation-with-g3sharp )
[gradientspace/geometry3Sharp: C# library for 2D/3D geometric computation, mesh algorithms, and so on. Boost license.](https://github.com/gradientspace/geometry3Sharp )
[Helix Toolkit · 3D for .NET](http://www.helix-toolkit.org/ )