[Gmsh] no tets in mesh saved as STL
David Colignon
David.Colignon at ulg.ac.be
Mon May 5 11:06:59 CEST 2008
Hi Ernest,
the STL format is only based on triangular facets, it contains no volumic elements...
What about the UNV mesh file format ?
Cheers,
Dave
--
David Colignon, Ph.D.
Collaborateur Logistique 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
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Ernest Johnson wrote:
> Hello!
>
> I have generated a 3D mesh with Gmsh. If I check the saved 'test.msh'
> file, I find these element types:
>
> |1 (|2-node line)
> |2 (|3-node triangle)
> |4 (|4-node tetrahedron)
>
> Next I saved the mesh (File->Save As) in STL format. In the 'test.stl'
> file I only find several blocks like
>
> facet normal 0 -0.780942 -0.624604
> outer loop
> vertex -4.06184 1.96854 12.1372
> vertex -4.43697 2.07828 12
> vertex -4.07973 2.07828 12
> endloop
> endfacet
>
> There are no other elements except for facets. Why don't I find any tets
> in the stl file?
>
> In the Mesh module of Gmsh I have chosen '3D' to generate the mesh. I
> have also tried 'STL' with no better success. What is the difference?
>
> If I cannot save the tetrahedral elements in the STL format, is there
> another format that I can select, which
> 1) saves the complete 3D mesh and which
> 2) can be opened in paraview or converted into the '*.vtk' format?
>
> Thank you
> Ernest J.
>
>
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