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Re: [cgal-discuss] Mesh Cutting


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  • From: Pierre Alliez <>
  • To:
  • Subject: Re: [cgal-discuss] Mesh Cutting
  • Date: Tue, 03 Mar 2009 15:42:30 +0100
  • Organization: INRIA

hi Chaman,

the disks required for the parameterization are...topological disks, ie the input chain
of halfedges must bound a disk.

If  I follow your next email about isotropic remeshing perhaps you are trying to re-implement "Isotropic Remeshing of Surfaces: a Local Parameterization Approach" ? unfortunately I have not put the implementation in CGAL and (I do not have one to send you) you can always check at any point in time during remeshing check that a patch is a disk and in the negative, construct one by region growing while enforcing this property.

pierre

Pierre Alliez
INRIA Sophia Antipolis - Mediterranee 
Project-team GEOMETRICA 
http://www-sop.inria.fr/members/Pierre.Alliez/
Tel: +33 4 92 38 76 77
Fax: +33 4 97 15 53 95


Chaman Singh Verma a écrit :
Hello,

In the CGAL Surface Parameterization modules, it is mentioned that it mandatory to provide topological disks
and there are no automatic way to do it and it is still open problem.

Can someone give deeper inside the properties of the disks that are required for parameterizations ?

Also,  I was thinking that many mesh partitioning tools ( such as Metis ) can create lots of surface patches,
aren't those patches good for parameterization ?  What is the opinion of the community on this issue ?

Thanks.

Chaman Singh Verma
Poona, India.





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