CGAL users discussion list

["BORDEU Felipe (SAFRAN)" <>]

Ok, I understand the problem and the limitation of my approach.

So if I understand well, I have to :
1) load my stl mesh (with Polyheron_3???) (info: the surface defined by the 
stl is not planar 3D surface)
2) remesh this surface with the " 3D surface mesh Generation" 
3) load my levelset field (Done)
4) In some way force the 3D Mesh Generation  to respect my surface mesh (or 
give the surface mesh as the starting triangulation).

Is this possible???

Thanks
Felipe

-----Message d'origine-----
De : 

 
[mailto:]
 De la part de Laurent Rineau (CGAL/GeometryFactory)
Envoyé : vendredi 22 avril 2016 10:38
À : 

Objet : Re: [cgal-discuss] mesh generation from levelset and preserving some 
things

Le Thursday 21 April 2016 15:18:12 BORDEU Felipe a écrit :
> Thanks, but can you develop a little bit more your answer. Can I 
> convert (read from file) my mesh into a Cgal mesh object?.

The mesh produces by CGAL needs geometrical properties, mainly the Delaunay 
criterion. If the mesh you want to preserve does not have that property, the 
only hope is to remesh it using the CGAL 3D mesh generator, and then there 
will be hope that you can write a custom mesh domain class, that allows to 
mix you mesh with the levelset.
 
> Or maybe I can use the Line Features to impose the edges and the 
> points on the interface between domain to be meshed (levelset)  and my 
> mesh so I get a compatible triangulation?

If you do that, the lines, corresponding to the edges of the input mesh, will 
be remeshed, and even then there is no guarantee that the facets of the input 
mesh can be represented by union of Delaunay facets.

--
Laurent Rineau, PhD
R&D Engineer at GeometryFactory           http://www.geometryfactory.com/
Release Manager of the CGAL Project       http://www.cgal.org/


-- 
You are currently subscribed to cgal-discuss.
To unsubscribe or access the archives, go to
https://sympa.inria.fr/sympa/info/cgal-discuss


#
" Ce courriel et les documents qui lui sont joints peuvent contenir des 
informations confidentielles, être soumis aux règlementations relatives au 
contrôle des exportations ou ayant un caractère privé. S'ils ne vous sont pas 
destinés, nous vous signalons qu'il est strictement interdit de les 
divulguer, de les reproduire ou d'en utiliser de quelque manière que ce soit 
le contenu. Toute exportation ou réexportation non autorisée est interdite Si 
ce message vous a été transmis par erreur, merci d'en informer l'expéditeur 
et de supprimer immédiatement de votre système informatique ce courriel ainsi 
que tous les documents qui y sont attachés."
******
" This e-mail and any attached documents may contain confidential or 
proprietary information and may be subject to export control laws and 
regulations. If you are not the intended recipient, you are notified that any 
dissemination, copying of this e-mail and any attachments thereto or use of 
their contents by any means whatsoever is strictly prohibited. Unauthorized 
export or re-export is prohibited. If you have received this e-mail in error, 
please advise the sender immediately and delete this e-mail and all attached 
documents from your computer system."
#