[Gmsh] CSG type operations.

[Christophe Geuzaine]

C.Stott wrote:
> 
> Hey,
> 
> I'm fairly sure this can't be done with gmsh at the moment, but I 
> thought I would double check, and if it's not possible maybe figure out 
> if it's possible to get it working / throw it open to the floor to see 
> if anyone knows how I could do it.
> 
> I'm trying to model an asymmetric curved bifurcation. The model is made 
> up of 3 tubes: 1 straight and 2 curved. The curved ones overlap and bend 
> in opposite directions, emerging from the straight pipe. The attached 
> screengrab will hopefully help imagine it.
> 
> Is there anyway I can get gmsh to mesh this? Is there some way to get it 
> to take the union of the two curved pipes? Even getting the surface mesh 
> would be fine.
> 
> If it's not possible, is there any other software any one knows of that 
> might work? One approach might be to get the surface mesh of the 
> individual pipes, and find some software that can apply CSG operations 
> to surface meshes, and mesh the result.
> 

Hi Chris - Yes, that's the only solution at the moment. Please let us
know if you find a good package that can perform such operations.

Take care,

Christophe

-- 
Christophe Geuzaine
Applied and Computational Mathematics, Caltech
geuzaine at acm.caltech.edu - http://geuz.org