CGAL users discussion list

["Laurent Rineau (GeometryFactory)" <>]

Le dimanche 04 octobre 2009 13:39:02, 

 a écrit :
> Hello,
> 
> I just begun to use CGAL and so my question is quite basic, sorry.
> I have compile an example to create a triangulation and print it. The
>  output file looks like the example below.
> It there somewhere in the documentation a description of this data
>  structure? The first lines are obviously dimension, #nodes , coordinates
>  but then elements. But why do I get so many elements? why node5 appears?
> Could you please explain me this format? Thank you.

The vertex numbered 0 is the infinite vertex, which does not carry 
coordinates 
(it is only a combinatorial vertex). If you only want finite cells, you can 
ignore all the cells that are incident to the vertex #0.

-- 
Laurent Rineau, PhD
Release Manager of the CGAL Project
http://www.cgal.org/
R&D Engineer at GeometryFactory
http://www.geometryfactory.com/