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Re: [cgal-discuss] Delaunay_triangulation_3


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  • From: Sylvain Pion <>
  • To:
  • Subject: Re: [cgal-discuss] Delaunay_triangulation_3
  • Date: Mon, 23 Nov 2009 13:05:39 +0100
  • Organization: INRIA

Tan Viet Anh TRUONG wrote:
Hi all,
I'm using CGAL::Delaunay_triangulation_3 to make 3d-triangulations from set of points. I tried with 4 points first:

Vertex_handle v0 = T.insert(Point(0,0,0));
Vertex_handle v1 = T.insert(Point(1,0,0));
Vertex_handle v2 = T.insert(Point(0,1,0));
Vertex_handle v3 = T.insert(Point(0,0,1));
Normally we have only a tedrahedron with these four points, but when i printed the result, I had:
3
4
0 0 0
1 0 0
0 1 0
0 0 1
5
0 1 3 4
1 2 3 4
2 0 3 4
2 1 0 4
1 3 2 0
1 2 3 4
2 0 3 4
0 1 3 4
0 2 1 4
2 3 0 1

I didn't understand what is "0 1 3 4" for example and why we have so much such sets.
You have ideas for this?

That is because there is an "infinite" vertex, together with
"infinite" cells.

--
Sylvain Pion
INRIA Sophia-Antipolis
Geometrica Project-Team
CGAL, http://cgal.org/



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