[Gmsh] gmsh crashes when elements are added to STEP data

[Christophe Geuzaine]

On 11 Mar 2013, at 14:12, "Zenker, Dr. Matthias" <Matthias.Zenker at erbe-med.com> wrote:

> Hi,
>  
> I have a geometry from CAD exported in STEP format and want to add an element (here: a volume) to it. I written a geo file containing a Merge command to get the STEP file, and then geometry commands (Point, Line etc.) to create additional geometry entities. The problem is that when I try to rely a new point with a point of the STEP by a straight line, gmsh crashes.
>  
> Questions:
> Can I do that at all? Is it possible to import a STEP file and add points, lines, surfaces and volumes to it in gmsh? If so, why does gmsh crash then?

Hi Matthias - "almost" : currently you can create surfaces and volumes that link CAD models (in this case OpenCASCADE and "GEO"), but not lines (yet). We just need to finish this... hopefully quite soon.


> If not, is there another way except to edit the STEP file with a “real” CAD software?
>  
> Matthias
>  
>  
> 
> 
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-- 
Prof. Christophe Geuzaine
University of Liege, Electrical Engineering and Computer Science 
http://www.montefiore.ulg.ac.be/~geuzaine