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This constructor creates a 3D Nef polyhedron from OFF file. OFF file is read from input stream in. The purpose of OFF_to_nef_3 is to create a Nef polyhedron from an OFF file that cannot be handled by the Nef_polyhedron_3 constructors. It handles double coordinates while using a homogenous kernel, non-coplanar facets, surfaces with boundaries, self-intersecting surfaces, and single facets. Every closed volume gets marked. The function returns the number of facets it could not handle.
| template<class Nef_polyhedron_3> | ||
| std::size_t | OFF_to_nef_3 ( std::istream& in, Nef_polyhedron_3& N) | |