[Gmsh] Problems creating a body of revolution

[pl]

Hi Christophe,

thanks for your fast answer. That fixes my problem.

But now I have a new problem:
I create a surface using BSplines one Line. Then I want to create a body 
of revolution out of it, whereas the rotation axis is exactly at the 
line's position.
What happens is, that the resulting product does not get any surface and 
volume. I end up with only the original and a rotated plane surface.
(demonstrated in test02).
If I do the very same and replace the BSplines with Lines, everything 
works as expected (test01).
If I move the rotation axes a little bit away form the line of my 
object, everything is fine aswell. But that's not a solution, because my 
final object will have a whole inside.

Is this there a workaround available for that problem?

Thanks a lot,

Patrick

Am 24.05.2011 17:24, schrieb Christophe Geuzaine:
> 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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>
>

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