CGAL users discussion list

[Olivier Devillers <>]

Le 1/20/12 11:13 AM, Juan Carlos Lopez Alfonso a écrit :
> Hi There:
>
> I have this concrete example:
> ..........
> - How is possible that in CGAL these points are not coplanar? because 
> these points are coplanar.
as already explained your points ARE NOT coplanar,
they are just almost coplanar (and since the volume is quite small you 
round it t zero)

> - In order that I can't remove points, How Can I say to CGAL when 
> computes the triangualtion that these points are coplanar?
THEY ARE NOT.
If you can compute another triangulation, but it will not be the 
Delaunay triangulation.

> - I will use the resultant triangulation in other software where the 
> jacobian is computed and I can't use the CGAL library. Is possible to 
> change the CGAL test of coplanar points when the triangulation is 
> computed?
if you cannot remove points, may be you can add (e.g. using the meshing 
package).

Olivier