CGAL users discussion list

[Mariette Yvinec <>]

 I use medit to visualize the meshes. 
medit read the .mesh files

Currently, there is no way to prevent the surface boundary mesh
to be modified.

Regads,
Mariette

----- Mail original -----
> De: "Michel Audette" 
> <>
> À: 
> 
> Envoyé: Vendredi 10 Décembre 2010 22:34:26
> Objet: Re: [cgal-discuss] is it possible to make make_mesh_3 indicate % 
> completion?
> Dear developers,
> 
> Mariette, your suggestion seems to have worked. I have a result in a
> matter of seconds. Can you tell me if there is a converter for the
> .mesh format to something like .vtk ? Equivalently, what do CGAL folks
> use to visualize tetrahedral meshes?
> 
> Moreover, is there a way of ensuring that the tetrahedralization keeps
> the surface triangle boundary faithfully? Although I have not
> visualized the result yet, the tet count makes it seem unlikely that
> the boundary was preserved.
> 
> Best wishes,
> 
> Michel
> 
> On Fri, Dec 10, 2010 at 4:23 PM, Michel Audette
> <>
>  wrote:
> > Hi Mariette,
> >
> > thanks for your kind reply. I'll try it your way. Do the other
> > parameters appear reasonable?
> >
> > Best wishes,
> >
> > Michel
> >
> > On Fri, Dec 10, 2010 at 4:14 PM, Mariette Yvinec
> > <>
> >  wrote:
> >> your facet angle is too high. It is suppose to be
> >> a lower bound for the minimum angle of each facet.
> >> A reasonable value is between 20 and 30 degree.
> >>
> >> Michel Audette wrote:
> >>
> >> Thanks, Laurent.
> >>
> >> Seems to work. I'm trying to run the mesh creation with criteria as
> >> follows... I'm seeing a high number of tetrahedra though... Higher
> >> than I'm expecting.
> >>
> >> I want high-quality elements of roughly 10mm edges, to begin with.
> >> (I
> >> would like 20mm later on if I can).
> >>
> >> Does something like this look reasonable? High facet angle, say 45
> >> deg. Facet distance a=10mm. Is the facet size root(3)/4 x a^3
> >> (=43.3),
> >> and the cell size root(2)/12 x a^3 (=117.9)?
> >>
> >> Mesh_criteria criteria(facet_angle=45, facet_size=43,
> >> facet_distance=10.0,
> >>                          cell_radius_edge=10.0, cell_size=118);
> >>
> >> Does that make sense, or not necessarily. I seem to be getting more
> >> tets "to refine" than I expect.
> >>
> >> Michel
> >>
> >> On Fri, Dec 10, 2010 at 1:49 PM, Laurent Rineau (GeometryFactory)
> >> <>
> >>  wrote:
> >>
> >>
> >> Le vendredi 10 décembre 2010 19:26:28, Michel Audette a écrit :
> >>
> >>
> >> Dear CGAL developers,
> >>
> >> I'm launching an example based on the code in
> >> examples/Mesh_3/mesh_polyhedral_domain.cpp
> >>
> >> but for the parameters that I gave, it seems to take a long time,
> >> and
> >> provides no indication on the percent completion.
> >>
> >> Can the interface be tweaked to make it more verbose?
> >> examples/Mesh_3/mesh_polyhedral_domain.cpp
> >>
> >>
> >> Define the macro CGAL_MESH_3_VERBOSE to 1. It will not give you the
> >> percent
> >> of
> >> completion, because the number of vertices at the end of the
> >> meshing process
> >> cannot be guessed, but it will show the size of the internal
> >> priority
> >> queues.
> >>
> >> --
> >> Laurent Rineau, PhD
> >> Release Manager of the CGAL Project http://www.cgal.org/
> >> R&D Engineer at GeometryFactory http://www.geometryfactory.com/
> >>
> >> --
> >> You are currently subscribed to cgal-discuss.
> >> To unsubscribe or access the archives, go to
> >> https://lists-sop.inria.fr/wws/info/cgal-discuss
> >>
> >>
> >>
> >>
> >>
> >>
> >> --
> >> Mariette Yvinec
> >> Geometrica project team
> >> INRIA Sophia-Antipolis
> >>
> >>
> >>
> >
> >
> >
> > --
> > Michel Audette, Ph.D.
> > R & D Engineer,
> > Kitware Inc.,
> > Chapel Hill, N.C.
> >
> 
> 
> 
> --
> Michel Audette, Ph.D.
> R & D Engineer,
> Kitware Inc.,
> Chapel Hill, N.C.
> 
> --
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