CGAL users discussion list

[Nizar Khalifa Sallem <>]

Thank you all and especially to Laurent who guessed my needs :)
I think that a look to the function mentioned by Andreas could  
effectively help, else I thought about a little trick. I will let you  
know which one works for me.

Thank you all again
--
Nizar SALLEM
Robotics and Artificial Intelligence PhD student
LAAS-CNRS
7, Avenue Colonel Roche
31077 Toulouse CEDEX 4
FRANCE




On May 14, 2009, at 4:06 PM, Laurent Rineau (GeometryFactory) wrote:

> On Thursday 14 May 2009 15:53:33 Monique Teillaud wrote:
> > A 3D triangulation is a decomposition of the space into 3D cells
> > (tetrahedra). 3D cells _are_ actually consistently oriented.
> > (see the user manuals of chapters 3d traingulation and 3d  
> > triangulation
> > data structure)
>
> Nizar is talking about *facets* of a 3D triangulation. Facets of a 3D
> triangulation are not stored in the data-structure. Only the  
> vertices and the
> cells of the triangulation are stored, and facets are implicit. The  
> cells of
> the triangulation are consistently oriented, and for that reason it is
> possible to consistently orient two facets incident to the same  
> edge, but that
> is not strait-forward.
>
> --
> Laurent Rineau, PhD
> Engineer at GeometryFactory
> http://www.geometryfactory.com/
>
> --
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