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[cgal-discuss] facets in a regular triangulation


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  • From: BRYang <>
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  • Subject: [cgal-discuss] facets in a regular triangulation
  • Date: Mon, 8 Jul 2019 02:23:49 -0500 (CDT)
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Hi,
I have got a question. For a delaunay triangulation, a facet is incidental
to two cells which share the facet, so a facet in delaunay triangulation has
three vertices.

However, it shows that in a regular triangulation Rt, we can access four
vertices of a facet ffi as follows:
ffi->first->vertex(i)->point(), where ffi is a Finite_facets_iterator and i
\in {0,1,2,3}.

Does that mean that any three of the four vertices could generate
a face with the three vertices in regular triangulation?




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