Earthworks (EW)

Earthworks though is still under hard development is the most advanced SDK I ever built.

It can perform a variety of tasks, from simple ones such as point triangulation (terrain modeling), to much more advanced ones. 

The SDK is suitable for:

• Terrain modeling (1000000 points in less than 40 sec) including breakline usage, boundaries, constraints.
• Contouring
• Drape models
• Profiles (using RD module / polyline / convex or concave polygon / Bulge polyline etc)
• Cross sections (using RD module / polyline / convex or concave polygon / Bulge polyline etc)
• Boolean polygon operations (so you can find the common area between two models)
• Center of mass calculation (prism method)
• Gridding / cut - fill comparisons
• Model insertion with constraints
• Hull computations
• Voronoi graph

As it's still under development, many more features will be added till the final release.

You can use it as it is as a stand alone application, embed it in your own app, or just use the framework's functions to achieve the best result for your needs.

It's written entirely in .NET (Visual Basic, still can be used in C# or any other .NET language), source code is also available on demand.