[Gmsh] Surface and volume mesh do not match on un-recombined transfinite mesh

[Christophe Geuzaine]

> On 7 Sep 2017, at 16:52, Adam Croft <jzj486 at mocs.utc.edu> wrote:
> 
> Hello,
> 
> As noted in the subject line, I am having a problem with the surface mesh not matching the volume mesh in un-recombined transfinite meshes. I have included a small example where you can see that the +x and +y faces are split one way by the triangles and the other way by the tetrahedra, the other faces are correct. I have tried orienting the faces a couple of different ways, but haven't had any luck. Am I doing something wrong, or is this a bug?

It's a limitation of the 3D transfinite algorithm. The orientation of the splitting is not automatic: you have to specify the corner vertices in a coherent way (manually) to have a matching.

> 
> Thanks,
> 
> Adam Croft
> 
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Prof. Christophe Geuzaine
University of Liege, Electrical Engineering and Computer Science 
http://www.montefiore.ulg.ac.be/~geuzaine

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