[Gmsh] Problem meshing imported STEP file

[Christophe Geuzaine]

> On 28 Apr 2020, at 13:36, Michael Enders <Michael.Enders at icfo.eu> wrote:
> 
> Yes, of course.

Your mesh size specification (or lack thereof) leads to a very coarse surface mesh, which has overlapping edges. Simply adjust the mesh sizes to have something reasonable, e.g. by adapting the mesh size to the curvature:



Cheers,

Christophe



> From: Christophe Geuzaine <cgeuzaine at uliege.be>
> Sent: 28 April 2020 13:34
> To: Michael Enders <Michael.Enders at icfo.eu>
> Cc: gmsh at onelab.info <gmsh at onelab.info>
> Subject: Re: [Gmsh] Problem meshing imported STEP file
>  
> 
> 
> > On 28 Apr 2020, at 12:20, Michael Enders <Michael.Enders at icfo.eu> wrote:
> > 
> > Hello everyone,
> > 
> > I would like to mesh a .STEP file (a picture is attached). But just running 
> > 
> > Merge "part.STEP";
> > Mesh 3;
> > 
> > gives me the following errors:
> > 
> > Error   : No tetrahedra in region 1
> > Info    : 3D refinement terminated (274 nodes total):
> > Info    :  - 0 Delaunay cavities modified for star shapeness
> > Info    :  - 0 nodes could not be inserted
> > Info    :  - 0 tetrahedra created in 0.000178 sec. (0 tets/s)
> > Error   : No elements in volume 1 
> > 
> > I tried to define new volumes and I managed to mesh some parts of the object, but I was never able to mesh everything. Do you have some ideas what I could do?
> > 
> 
> Can you send the .step file ?
> 
> Christophe
> 
> > Thanks,
> > Michael
> > <imported_step_file.png>_______________________________________________
> > gmsh mailing list
> > gmsh at onelab.info
> > http://onelab.info/mailman/listinfo/gmsh
> 
> — 
> Prof. Christophe Geuzaine
> University of Liege, Electrical Engineering and Computer Science 
> http://www.montefiore.ulg.ac.be/~geuzaine
> 
> 
> 
> <part.STEP>

— 
Prof. Christophe Geuzaine
University of Liege, Electrical Engineering and Computer Science 
http://www.montefiore.ulg.ac.be/~geuzaine



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