I, imported the step-file and tried to mesh ist.
The import of the geometry works nearly fine.
All needed points and lines are there, but if I try to crate a surface from the small pipe in my example it creates no/wrong surface.

What are the steps to create a surface from the thre nurbs and one line to get the surface of the pipe wall?


Am 21.05.2015 um 20:21 schrieb Christophe Geuzaine:

On 20 May 2015, at 10:26, Maik Hoffmann <[email protected]> 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

--
wissenschaftlicher Mitarbeiter
Lehrstuhl Allgemeine Elektrotechnik und Messtechnik (AEMT)
Fakultät Maschinenbau, Elektrotechnik und Wirtschaftsingenieurwesen
Brandenburgische Technische Universität Cottbus
Siemens-Halske-Ring 14
D-03046 Cottbus

Tel.: +49-355-69-3425
Fax:  +49-355-69-4104

http://www.tu-cottbus.de/fakultaet3/de/elektrotechnik-messtechnik/
<mesh.png><cad.png><pipesection4.geo>_______________________________________________
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--
wissenschaftlicher Mitarbeiter
Lehrstuhl Allgemeine Elektrotechnik und Messtechnik (AEMT)
Fakultät Maschinenbau, Elektrotechnik und Wirtschaftsingenieurwesen
Brandenburgische Technische Universität Cottbus
Siemens-Halske-Ring 14
D-03046 Cottbus

Tel.: +49-355-69-3425
Fax:  +49-355-69-4104

http://www.tu-cottbus.de/fakultaet3/de/elektrotechnik-messtechnik/

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