CGAL users discussion list

[Monique Teillaud <>]

Laurent Rineau (GeometryFactory) wrote:
> Le vendredi 25 septembre 2009 19:05:47, Sybren A. Stüvel a écrit :

Hi,

> That is very nice that you attached your code.

yes.

BTW, it is also very nice that you introduced yourself!

> The file output of CGAL triangulation is not documented.

In fact it _is_ documented
http://www.cgal.org/Manual/last/doc_html/cgal_manual/Triangulation_3_ref/Class_Triangulation_3.html#Cross_link_anchor_1185
scroll to the bottom of the page
And there is a similar documentation in Triangulation_data_structure_3 
for the combinatorial part.

Best,
        Monique Teillaud

> It is not intended to 
> be used by users. However, that is not really a secret either: the source code 
> is published. The file output stores in the file all cells of the triangulation, 
> even the infinite cells. The vertex #0 is probably the infinite vertex. If you 
> only want the finite cells of the triangulation (that is, those that are inside 
> the convex hull of the points), then just ignore the cells that have the 
> vertex #0.
>
> You can find an explanation about the infinite vertex and infinite cells in the 
> manual, at the very beginning of the chapter about 3D triangulations:
> http://www.cgal.org/Manual/last/doc_html/cgal_manual/Triangulation_3/Chapter_main.html