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[cgal-discuss] External tetrahedralization to C3t3


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  • From: Comeylo <>
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  • Subject: [cgal-discuss] External tetrahedralization to C3t3
  • Date: Wed, 8 Jun 2016 23:25:33 -0700 (PDT)
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Hello everyone,

I would like to use CGALs optimizers on a certified delaunay triangulation
coming from some other meshers, to do so, I would like to create a C3t3 from
these external tetrahedralizations(in double kernel). Provided an
appropriated domain (oracle), I should be able to have the optimizers do as
I wish.

I have seen dedicated functions to add cells to C3t3 (more on the testing
side). But nothing such as the Polyhedron_builder. -Is there an undocumented
function to achieve this goal straighforwardly ?
-Or I need to procede as in the testing function ?
-What about the infinite vertices that I necessarily don't have in the
external tetrahedralizations ?

Last remark : since the external tetrahedralization is exported in double
precision, possibly the Delaunay properties were lost in the process. Is
there a way to slightly perturb the position of the vertices (in exact
kernel) of the created C3t3 to enforce Delaunay properties (required by the
optimizers).

Your help is much appreciated,

Thanks,

Come



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