[Gmsh] FW: Bug in gmsh-2.2.3 / OCC?
Billy Araújo
billy at dem.uminho.pt
Tue Jul 22 21:10:44 CEST 2008
Hi,
I send a pdf with the Rhino3d settings I found worked best for Gmsh.
Regards,
Billy.
-----Mensagem original-----
De: David Colignon [mailto:David.Colignon at ulg.ac.be]
Enviada: ter 22-07-2008 8:13
Para: Billy Araújo
Cc: gmsh at geuz.org
Assunto: Re: [Gmsh] FW: Bug in gmsh-2.2.3 / OCC?
Billy Araújo wrote:
>
> Hi,
>
> First, I would like to congratulate you for developing such a great
> software.
>
> I tried with version 2.1.0 and the it is able to import with no errors
> and mesh this surface. This is a surface of a more complex part which I
> broke down until finding the problematic surface. When I meshed the
> part, this surface caused a crash of Gmsh and I couldn't retreive the
> mesh of other surfaces. I would be glad if gmsh presented an error
> during meshing that surface but still being able to export the mesh of
> the non-failing surfaces. Then I could correct the mesh using a mesh editor.
>
> I know STEP is better than IGES for importing in Gmsh. I also tested
> several "flavours" of IGES coming from Rhino3d and I found one which is
> almost as good as STEP.
Hi Billy,
can you tell us which flavor of IGES exported by Rhino is working well ?
Thanks,
Dave
--
David Colignon, Ph.D.
Collaborateur Logistique du F.R.S.-FNRS (Equipements de Calcul Intensif)
ACE - Applied & Computational Electromagnetics
Institut Montefiore B28
Université de Liège
4000 Liège - BELGIQUE
Tél: +32 (0)4 366 37 32
Fax: +32 (0)4 366 29 10
WWW: http://www.montefiore.ulg.ac.be/personnel.php?op=detail&id=898
Agenda: http://www.google.com/calendar/embed?src=david.colignon%40gmail.com
However, I have a part that also produces a
> similiar error during import like:
>
> Error : Something wrong in edge loop
> Warning : OCC STL triangulation failed
>
> using STEP or IGES format with any "flavour". And when I mesh it, Gmsh
> crashes. Although, as I said I would be more than glad if Gmsh just
> presented a message of the failing surface and/or not try to mesh these
> surfaces. This way I could still export the mesh.
>
> Regards,
>
> Billy.
>
>
>
> -----Mensagem original-----
> De: Christophe Geuzaine [mailto:cgeuzaine at ulg.ac.be]
> Enviada: seg 21-07-2008 19:23
> Para: Billy Araújo
> Cc: gmsh at geuz.org
> Assunto: Re: [Gmsh] FW: Bug in gmsh-2.2.3 / OCC?
>
> Billy Araújo wrote:
> >
> > I forgot to say that this happens using the windows version. I tried on
> > the Linux version and it seems to be working OK.
>
> Hi Billy - Even on Linux the parametrization of the surface looks weird,
> and the resulting mesh is extremely distorted.
>
> If possible always try to use STEP files instead of IGES (IGES files do
> not contain the topology, so a geometrical tolerance must be used to
> decide when entities are identical).
>
> >
> > Regards,
> >
> > Billy.
> >
> >
> > -----Original Message-----
> > From: gmsh-bounces at geuz.org on behalf of Billy Araújo
> > Sent: Thu 7/17/2008 12:35 AM
> > To: gmsh at geuz.org
> > Subject: [Gmsh] Bug in gmsh-2.2.3 / OCC?
> >
> >
> > Hi,
> >
> >
> > I send an IGES file in attachment.
> >
> > It gives an error in the edge loop when importing.
> >
> > Error : Something wrong in edge loop
> > Warning : OCC STL triangulation failed
> >
> > And when I try to mesh it, Gmsh crashes.
> >
> >
> > Billy.
> >
> >
> > ------------------------------------------------------------------------
> >
> > _______________________________________________
> > gmsh mailing list
> > gmsh at geuz.org
> > http://www.geuz.org/mailman/listinfo/gmsh
>
>
> --
> Prof. Christophe Geuzaine
> University of Liege, Electrical Engineering and Computer Science
> http://www.montefiore.ulg.ac.be/~geuzaine
>
>
> ------------------------------------------------------------------------
>
> _______________________________________________
> gmsh mailing list
> gmsh at geuz.org
> http://www.geuz.org/mailman/listinfo/gmsh
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