[Gmsh] Structured mesh of a STEP part

PINO Daniel pino at emse.fr
Mon Aug 27 08:45:21 CEST 2012


Hello again,

Any advices?

Best,

	Daniel

Le vendredi 24 août 2012 à 07:06 +0000, Zenker, Dr. Matthias a écrit :
> Hi Daniel,
> 
> have no experience with structured meshes, so I cannot help you here. But maybe someone else knows more  - CC of this answer goes to the gmsh mailing list.
> 
> Matthias
> 
> -----Ursprüngliche Nachricht-----
> Von: PINO Daniel [mailto:pino at emse.fr]
> Gesendet: Freitag, 24. August 2012 08:50
> An: Zenker, Dr. Matthias
> Betreff: Re: AW: [Gmsh] Structured mesh of a STEP part
> 
> Hello Mattias,
> 
> Thank you for your answer!
> 
> I'll try to explain a bit more.
> 
> I have a STEP part and when load it into gmsh, I'm able to mesh it directly by doing: Mesh -> 3D. However the mesh I obtain is an unstructred and I need a structured mesh.
> 
> My file has only one volume and about 25 surfaces. Therefore this part contains many lines.
> 
> If I got it right, in order to generate a structured mesh I have to use the "transfinite line" to define the number of nodes of each line.
> 
> So my question was, Do I have to define the number of nodes of each line manually (using transfinite line) or there is a clever way to do so?
> 
> Thank you very much for your help,
> 
> Sincerely,
> 
>         Daniel
> 
> 
> Le vendredi 24 août 2012 à 06:30 +0000, Zenker, Dr. Matthias a écrit :
> > Hi,
> >
> > difficult to say without more information.
> >
> > I don't know what you mean by saying
> > > Do I have to set the transfinite line for each line of the part and
> > > be sure that the numer of element by segment is correct, or there is
> > > an easier way to do so?
> >
> > If your mesh file has more than one volume, you should check "Cut and merge faces" under Options->Geometry->General before opening the STEP file, otherwise you will get duplicated interfaces. If that doesn't work, you have a problem.
> >
> > HTH,
> >
> > Matthias
> >
> > -----Ursprüngliche Nachricht-----
> > Von: PINO Daniel [mailto:pino at emse.fr]
> > Gesendet: Donnerstag, 23. August 2012 17:13
> > An: gmsh at geuz.org
> > Betreff: Re: [Gmsh] Structured mesh of a STEP part
> >
> > Hello again,
> >
> > I've being trying to mesh my STEP file yet without success,
> >
> > Any advice?
> >
> > Best,
> >
> >         Daniel
> >
> > Le mercredi 22 août 2012 à 15:04 +0200, PINO Daniel a écrit :
> > > Hello everyone,
> > >
> > > I need to mesh a part from a STEP file using a structured mesh, as
> > > the the one attached.
> > >
> > > Does anyone have an example or a tutorial of how to do this?
> > >
> > > Do I have to set the transfinite line for each line of the part and
> > > be sure that the numer of element by segment is correct, or there is
> > > an easier way to do so?
> > >
> > > Just for information, the mesh in image has been created by using
> > > Hypermesh, but it should be possible to obtain a similar result by
> > > using gmsh.
> > >
> > > Thank you.
> > >
> > > Best regards,
> > >
> > >       Daniel
> > >
> > > _______________________________________________
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> > > gmsh at geuz.org
> > > http://www.geuz.org/mailman/listinfo/gmsh
> >
> >
> >
> >
> >
> >
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> 
> 
> 
> 
> _____________________________________________________________________
> ERBE Elektromedizin GmbH
> Firmensitz: 72072 Tuebingen
> Geschaeftsfuehrer: Christian O. Erbe, Reiner Thede
> Registergericht: Stuttgart HRB 380137
>