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G# provides fast and robust .NET methods to compute 2d Delaunay triangulations, 2d and 3d convex hulls and minimum enclosing rectangles and circles. All algorithms have O(n*log(n)) running time. G# implements exact arithmetic, and you can directly access the exact and floating point arithmetic predicates. The 3d convex hull object provides mass properties and a bounding box along the principal axes of inertia. G# also supports 3d polylines and surface reconstruction from wireframe edges. Using the inbuilt AutoCAD dxf file format writer, you can easily visualize your computations or even generate complex drawings.