[Gmsh] Problem creating surface

[Christophe Geuzaine]

> On 20 May 2015, at 10:26, Maik Hoffmann <maik.hoffmann at b-tu.de> wrote:
> 
> Hello,
> I need a mesh for BEM analysis. I created the part with with FreeCad (cad.png) and imported the step-file into Gmsh. That works fine. Some surfaces were already created. Now I tried to create the surface for the small tube, but I got only the surface of the opening of the tube not for the wall (mesh.png).
> 
> What have I to do for it. I choose 'Add/Ruled Surface' and selected the nurbs and the line between them.
> 

You cannot export your .step file as a .geo file: Gmsh should mesh the .step file directly - see previous messages on the list for more detailed information.

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