CGAL users discussion list

[Alexandre Bilger <>]

Hello,

my question concerns the optimization phase of the 3D mesh generation.

http://www.cgal.org/Manual/latest/doc_html/cgal_manual/Mesh_3/Chapter_main.html

I have an existing tetrahedral mesh and I would like to detect if there are bad quality tetrahedron, and if so fix them.

That is why I would like to maybe use the optimization phase of the 3d mesh generation.

The functions corresponding to the different optimization processes expect a C3T3 as input. I saw that this structure is generated by CGAL::make_mesh_3 or CGAL::refine_mesh_3.

But, I cannot call these function as my mesh is already existing.

Is it possible to use the optimization functions (such as lloyd_optimized_mesh_3 etc) on a an existing mesh? If so, should I create an empty C3T3 structure and fill it with my mesh topology? In that case, what attributes should I fill to use it in the optimization functions? And how to define the MeshDomain_3?

Maybe it's impossible as the optimization process asks data computed in CGAL::make_mesh_3.

Thanks,

Alexandre Bilger