CGAL users discussion list

[Mariette Yvinec <>]

A priori, this is not possible.
the cgal mesh generation package is designed to mesh
at the same times surfaces and the 3d domain components
bounded by thoses surfaces.

Le 31/10/12 11:23, Mark Blome a écrit :

Hi all,

I have a simple question about the 3D Mesh Generation package:
Is it possible to volume discretize a domain using a triangulated surface
as input enforcing the triangulated surface not to be modified during meshing?

From mesh_polyhedral_domain.cpp (Mesh_3/applications/)I learned that I can use

    c3t3.insert_surface_points(polyhedron.points_begin(),
                               polyhedron.points_end(),
                               domain.make_surface_index());    
    CGAL::refine_mesh_3<C3t3>(c3t3, domain, criteria, no_exude(), no_perturb()); 

to force all points of the initial polygonal surface to be present in the resulting mesh,
but would this guarantee the surface to remain unchanged in the final result ?

I would need this functionality for volume discretizing a CAD model that consists of 
several solids with shared model faces and edges (I discretize faces and edges 
beforehand using a different mesher). 

Thanks for any help on this,
Mark
 

-- 
Mariette Yvinec
Geometrica project team
INRIA  Sophia-Antipolis