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[cgal-discuss] Extract manifold Polyhedron_3 from Triangulation_3


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  • From: Per Zetterlund <>
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  • Subject: [cgal-discuss] Extract manifold Polyhedron_3 from Triangulation_3
  • Date: Mon, 24 Nov 2014 09:10:02 +0100

Hi all,

This is an issue I've run into several times
in different applications. Say that I have a
Triangulation_3 and I do a binary labelling of
the cells. Then I want to extract the interface
surface between the labels as a manifold
Polyhedron_3. Often it happens that that the
topology of the actual triangle faces in the
triangulation is not manifold. Are there any
routines in CGAL to extract a manifold surface
from a triangulation that (in some sense) is
close to the true interface surface?

Any ideas?

/Per


  • [cgal-discuss] Extract manifold Polyhedron_3 from Triangulation_3, Per Zetterlund, 11/24/2014

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