CGAL users discussion list

["dmyan" <>]

Hello,

 

    I have a question about CGAL's Delaunay triangulation 3D.

    Assume I have a 3D Delaunay triangulation and I am moving one of its vertex. Is there a efficient way to test whether the moving point triggers a combinatorial change of the DT?

    Thanks in advance!

 

Best regards

 

Dongming

 

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Sent: Sunday, September 13, 2009 4:45 AM

Subject: [cgal-discuss] CGAL_triangulation_precondition

Hello !

Could you tell me what means "CGAL_triangulation_precondition()" in CGAL code ?

I thought that when condition fails - then it returns from subroutine, but when I added in function  Triangulation_2<Gt, Tds>::flip(Face_handle f, int i)

following row:

CGAL_triangulation_precondition(1 == 2);

it has no any affect.

Thank you.

Vitaliy.