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3dcgal

cgal: Surface simplification of 3d triangulated mesh

I would like to use the surface simplification algorithm of CGAL with C3t3 (Mesh_complex_3_in_triangulation_3) object.

I have the C3t3 object, how do I use this function with this kind of object. The only examples I found were using Polyhedron objects.

More specifically i need to use the SMS::edge_collapse function

Thanks.

Solution

  • A C3t3 object is first a 3D regular triangulation of the set points in the mesh. We cannot collapse edges in a regular triangulation. All you can do is remove or add new points.

    I suggest you export the surface of the C3t3 object to a data structure where you can apply SMS::edge_collapse.