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New Repo: PolyClipper June 19, 2020

PolyClipper is a C++ reimplementation of the geometric clipping operations in the R3D library originally written by Devon Powell, as documented in the paper Powell & Abell (2015). This repo focuses on clipping polygons (in 2D (x,y) coordinates) and polyhedra (in 3D (x,y,z) coordinates) with planes, returning new polygons/polyhedra as the result of this clipping. The input polygons/polyhedra may be non-convex and arbitrarily complex, but the only clipping operation supported is with planes. This is equivalent to intersecting one arbitrary (not necessarily convex) polygon/polyhedron with a convex polygon/polyhedron. Documentation is available.