[Gmsh] About Scaling

[David Colignon]

Hi Cécile,

gmsh-2.0.0 uses by default the netgen 3d meshing algorithm, which as you found it has a bug when you scale up the geometry and/or work with big objects...

first solution: keep gmsh-2.0.0 but use the 3D Delaunay algorithm: Tools -> Options -> Mesh -> General -> 3D Algorithm -> Delaunay

second (and best) solution: be one of the first to download ( http://www.geuz.org/gmsh/bin/Windows/gmsh-2.0.4-Windows.zip )and try the new 2.0.4 version (which uses by default the 3D Delaunay meshing algorithm !

Cheers,

Dave

-- 
David Colignon, Ph.D.
ELAP - Service d'Electricité Appliquée
Institut Montefiore B28
Université de Liège
4000 Liège - BELGIQUE
Tél: +32 (0)4 366 37 32
Fax: +32 (0)4 366 29 10
http://elap.montefiore.ulg.ac.be


Cécile Giorla wrote:
> Hi,
> Here is my .geo file.
> As for the meshing algorithm, I don't know exactly. I am using the .exe 
> of GMSH 2.0.0 fo Windows, and I have modified no options (or not 
> knowingly).
> 
> Thanks,
> Cecile Giorla.
> 
> 
> David Colignon a écrit :
>> Hi,
>>
>> can you send us your test .geo file and explain which meshing 
>> algorithm you use for 2D and 3D ?
>>
>> Cheers,
>>
>> Dave
>>