[Gmsh] pesky extrusion command

[Christophe Geuzaine]

Matthias K Gobbert wrote:
> 
> 
> (I should say that I also have a triangular/tetragonal version of this
> geometry, i.e., same surfaces and extrusions, but without Ruled and
> Recombine. That one does not create a fatal error from gmsh, but there is
> a warning that it cannot swap triangles properly.)
> 

Yes, swapping should be more intelligent and also try to swap the 2D
mesh... At the moment you can simply globally swap the triangles in the
problematic surface, i.e. replace 

Transfinite Surface {36} = {  8,  9, 16, 15};

with

Transfinite Surface {36} = {  15, 16, 9, 8};

and everything should be fine...

Christophe

-- 
Christophe Geuzaine

Tel: 32 (0) 4 366 37 10    http://geuz.org
Fax: 32 (0) 4 366 29 10    mailto:Christophe.Geuzaine at ulg.ac.be