[Gmsh] Transfinite mesh: incoherence between surface and volume meshes

[Olivier Pierard]

Dear all,

When generating a structured transfinite mesh, I faced a tricky
situation where surface and volume meshes do not coincide on the faces.

This is illustrated on the very simple example attached to this mail. 
If transfinite surface meshes do not coincide on opposite face (e.g.:
faces 20 and 22), transfinite volume mesh will match on of the two
opposite faces only.

Is such behavior the one expected ?  Shouldn't be possible to have at
least a warning during mesh generation to avoid such critical case ?  Or
better, an automatic correction of nodes ordering within the definition
of transfinite face meshes.

Thanks,

Olivier Pierard

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