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Re: [cgal-discuss] Changed cells in Delaunay_triangulation_3


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  • From: "Laurent Rineau (CGAL/GeometryFactory)" <>
  • To:
  • Subject: Re: [cgal-discuss] Changed cells in Delaunay_triangulation_3
  • Date: Thu, 01 Sep 2016 11:48:14 +0200
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  • Organization: GeometryFactory
Le Wednesday, August 31, 2016 3:50:41 PM CEST Brown, James 2 a écrit :
> I need to find changed cells (removed and new) for moved vertices. The
> movement I have is fairly small but because some tetrahedra are very 'thin'
> sometimes the points cross a face causing the tetrahedron to be in an
> opposite orientation which would require the neighboring cells to be
> retriangulated.

When the Mesh Optimizers (from CGAL Mesh_3) do move vertices, the code needs
to have the same knowledge.

You may find what you need in the big collection of helper functions in <CGAL/
Mesh_3/C3T3_helpers.h>.

--
Laurent Rineau, PhD
R&D Engineer at GeometryFactory http://www.geometryfactory.com/
Release Manager of the CGAL Project http://www.cgal.org/


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