CGAL users discussion list

[Laurent Saboret <>]

skunkwerk wrote:
> Hi,
>     I'm trying to parametrize a 3D mesh that was output from a piece of 
> modeling software - the problem is that it's non-manifold, and causes 
> the parametrizer that's based on LSCM to crash.  I have looked around, 
> and read a ton of papers, but haven't been able to find any algorithms 
> that can handle non-manifold meshes.  So, my questions are:
>
> 1)  Does anyone know of any such algorithm?
> 2)  If not, are there any ways to repair the non-manifold mesh and turn 
> it into a manifold one?  I've tried remesh.sourceforge.net 
> <http://remesh.sourceforge.net> and Prof. Ju's Polymender 
> (http://www.cs.wustl.edu/~taoju/code/polymender.htm), but neither gives 
> satisfactory results.
>
> thanks,
> imran

Hi,

CGAL parameterization package is restricted to manifold surfaces, thus you should use an 
another tool to preprocess your mesh.
In the other hand, CGAL should not crash. Please send me your mesh by direct email and I 
will try to fix the crash.

Best regards,
--
Laurent Saboret
INRIA Sophia-Antipolis