CGAL users discussion list

["Shi Yan" <>]

really? i thought the 3D triangulation is for tetrahedrons, not for
triangles. i need definitely check the manual again.

and i'm sorry, i don't quite understand what the infinite points are.

thank you very much.

On Thu, Oct 2, 2008 at 1:12 AM, Jens K. Becker 
<>
 wrote:
> Hi Shi,
>
> I am not an expert with CGAL (yet), but I had the same problem. There are
> plenty
> of triangulation methods in 3D (all of them work in 3d if I am not
> mistaken).
> The resulting triangulation will be in 3D because infinite points will be
> added
> to your point set. If you just check for these points
> (T.is_infinite(vertex))
> and eliminating them should leave you with a triangulation in the plane.
>
> Greetings,
>
> Jens
>
> --
> Dr. J.K. Becker
> University of Tuebingen - Institute for Geoscience
> Sigwartst. 10 - 72076 Tuebingen (Germany)
> Tel.: ++49 7071 29 73139   Fax: +49 7071 5059
> web: http://www.jkbecker.de
>
>
> Quoting Shi Yan 
> <>:
>
>> hello guys,
>>
>> i need to do triangulation inside a 3d triangle. the triangulation
>> method provided by CGAL seems to be for 2D. so instead of me
>> converting the 3D points into a 2D coordinate system, is there any
>> convenient CGAL function that can do this for me?
>>
>> thank you very much.
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