.NET Geometry Library [closed]

Question

Does anyone know of a good (efficient, nice API, etc.) geometry open source library for .NET? Some of the operations needed:

• Data Structures
  • Vectors (2D and 3D with floats and doubles)
  • Lines (2D and 3D)
  • Rectangles / Squares / Cubes / Boxes
  • Spheres / Circles
  • N-Sided Polygon
  • Matrices (floats and doubles)
• Algorithms
  • Intersection calculations
  • Area / Volume calculations

Answer 1

For the Linear Algebra part Math.NET - especially Math.NET Numerics - could be an option.

Answer 2

I would recommend RhinoCommon, the open source library of the Rhinoceros 3d modeler from mcneel http://www.rhino3d.com .

It allows for the definition of basically any advanced geometry. geometries (meshes, nurbs, polygons, solids, curve, line, polyline etc) and also intersections that result from this geometry. It's pretty well documented, and also available separate from the rhinoceros modeler.

Documentation: http://4.rhino3d.com/5/rhinocommon/

Github: https://github.com/mcneel/rhinocommon

Standalone build instructions: https://github.com/mcneel/rhinocommon/wiki/Rhino3dmIO-Toolkit-%28OpenNURBS-build%29