[Gmsh] Mesh generation question

David Colignon David.Colignon at ulg.ac.be
Thu Jun 4 08:04:41 CEST 2009

Hi Matt,

have you had a look at http://geuz.org/gmsh/doc/texinfo/gmsh-full.html#SEC42 and 
http://geuz.org/gmsh/doc/texinfo/gmsh-full.html#SEC64 ?

In the MSH file format (see section 9. File formats), if physical entities are defined, the output mesh only contains 
those elements that belong to physical entities.



David Colignon, Ph.D.
Collaborateur Logistique du F.R.S.-FNRS
CÉCI - Consortium des Équipements de Calcul Intensif
ACE - Applied & Computational Electromagnetics
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Université de Liège
4000 Liège - BELGIQUE
Tél: +32 (0)4 366 37 32
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Matt Salveson wrote:
> Thank you for a great academic tool.
> When GMSH creates a mesh file, it generates "elements" that include 
> points, lines, and surfaces (and volumes in 3D).  My finite element code 
> only needs the surfaces (a 3 node triangle, for example) and the nodes.  
> Is there an easy way to prevent GMSH from generating the line and point 
> elements?  At the moment, I have my finite element code selectively 
> ignoring elements.  I have tried turning off the visibility of the 
> unwanted elements, but they are still saved to the mesh file.
> Thanks,
> Matt Salveson
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