[Gmsh] Empty STL sxport

Christophe Geuzaine cgeuzaine at uliege.be
Wed Oct 23 19:13:05 CEST 2019



> On 21 Oct 2019, at 20:29, Luis Miranda <luis.miranda at convergecfd.com> wrote:
> 
> Hello,
> 
> I am trying to use Gmsh to import a NASTRAN file and export a correspondent STL file.
> 
> The (simple prism) import looks great, but when I export to STL I get an empty file:

STL only support (triangular) surface meshes.

Christophe


> solid Created by Gmsh
> endsolid Created by Gmsh
>  
> Usage:
> gmsh test.nas -o test.stl -format stl -save_all
> 
> If I export the file as MSH this is what I get:
> $MeshFormat
> 4.1 0 8
> $EndMeshFormat
> $Entities
> 0 0 0 1
> 10 -1 1 0 1 3 1 0 0 
> $EndEntities
> $Nodes
> 1 6 1 6
> 3 10 0 6
> 1
> 2
> 3
> 4
> 5
> 6
> -1 1 0
> 1 1 0
> 0 1 1
> -1 3 0
> 1 3 0
> 0 3 1
> $EndNodes
> $Elements
> 1 1 1 1
> 3 10 6 1
> 1 1 2 3 4 5 6 
> $EndElements
> 
> How can I export the prism into the STL file?
> 
> Thank you,
> Luis
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— 
Prof. Christophe Geuzaine
University of Liege, Electrical Engineering and Computer Science 
http://www.montefiore.ulg.ac.be/~geuzaine






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