[Gmsh] Surface mesh of an STL model
David Colignon
David.Colignon at ulg.ac.be
Wed Jul 29 11:54:59 CEST 2009
Mike B. wrote:
> Hi Dave,
>
> Thanks for the prompt reply.
>
> So to STL mesh is determined by whatever created the STL model?.
Unfortunately, yes.
If I remember well , there was an EXPERIMENTAL STL remesher in the rather old 1.65 version (
http://geuz.org/gmsh/bin/Windows/gmsh-1.65.0-Windows.zip)
Dave
>
> Cheers,
> Mike.
>
> --- On *Wed, 7/29/09, David Colignon /<David.Colignon at ulg.ac.be>/* wrote:
>
>
> From: David Colignon <David.Colignon at ulg.ac.be>
> Subject: Re: [Gmsh] Surface mesh of an STL model
> To: "Mike B." <mb78aa at yahoo.com>
> Cc: "Gmsh mai. lis." <gmsh at geuz.org>
> Date: Wednesday, July 29, 2009, 7:38 PM
>
> Hi Mike,
>
> from: http://www.geuz.org/pipermail/gmsh/2008/003744.html
>
> ...
> Gmsh will not remesh these STL faces, though. It's something we will
> reintroduce at some point, but the remesher is not ready yet.
> ...
>
>
> Cheers,
>
> Dave
>
>
> --
> David Colignon, Ph.D.
> Collaborateur Logistique du F.R.S.-FNRS
> CÉCI - Consortium des Équipements 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://hpc.montefiore.ulg.ac.be/
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>
>
> Mike B. wrote:
> > Dear All,
> >
> > I have an STL model which I load (with the `Merge' command) into
> Gmsh. The model is a boundary representation (a shell).
> >
> > When meshing this model (and others), the mesh on the surface of
> the model seems fixed and unaffected by the characteristic length
> settings. Any suggestions how to control this surface mesh
> (preferably with fields)?.
> >
> > Here is a simple script which loads `sph.stl', a sphere shell in
> saved STL format:
> >
> > Mesh.CharacteristicLengthFromPoints = 0;
> > Mesh.CharacteristicLengthExtendFromBoundary = 1;
> > Mesh.CharacteristicLengthFromCurvature = 0;
> > Mesh.Format = 1;
> > Mesh.CharacteristicLengthMin = 0.01;
> > Mesh.CharacteristicLengthMax = 0.05;
> > Merge "sph.stl";
> > Surface Loop( 1 ) = { 1 };
> > Mesh 2;
> > Save "sph.msh";
> >
> > Cheers,
> > Mike.
> >
> >
> >
> >
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