[Gmsh] Problems creating a body of revolution

Christophe Geuzaine cgeuzaine at ulg.ac.be
Tue May 24 17:24:48 CEST 2011


On 24/05/11 11:39, PL wrote:
> Hi all,
>
> I try to create a body of revolution with gmsh.
> The shape will be quite complex. But for tests I have tried to create a
> simple sphere by extrusion of 2*Pi. I have attached my example.
>
> The problem is that I am not able to create the volume mesh.
> Can somebody give me a hint, what's going wrong?

Hi Patrick - see the docs: Gmsh's native CAD engine does not support 
circles arcs >= Pi. Split your body into 3 pieces and you'll be fine.

>
> Thanks a lot,
>
> Patrick
>
> System: Ubuntu 11.04 64bit
>
> Version : 2.5.0
> GUI toolkit : FLTK 1.1.10
> License : GNU General Public License
> Build OS : Linux
> Build options : Ann Bamg Blas Chaco DIntegration Dlopen FlTree Fltk Gmm
> Have64BitSizeT Jpeg Kbipack Lapack MPI MathEx Mesh Metis Mpeg
> NativeFileChooser Netgen OpenCascade OpenGL Parser Plugins Png Post
> Solver Zlib
> Build date : 20101030
> Build host : crested
> Packager : buildd
> Web site : http://www.geuz.org/gmsh/
> Mailing list : gmsh at geuz.org
>
>
>
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-- 
Prof. Christophe Geuzaine
University of Liege, Electrical Engineering and Computer Science
http://www.montefiore.ulg.ac.be/~geuzaine