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I am using the CGAL package 3D Mesh generation to convert a triangulated model of a turbine blade into a tetrahedral mesh. However, my downstream application requires at least two tetrahedra between the opposite sides of the domain. Unless I set edge_size in Mesh_criteria very low, I get a mesh containing a tetrahedral element connecting the opposing sides of the domain, which makes the downstream application unhappy.

Is there a possibility to modify, for instance, the mesh_polyhedral_domain_with_features.cpp example to ensure this? I seem to remember that there was such an option in MeshGems-Tetra (which seems similar in function to this CGAL package) but so far I was unable to find anything in CGAL.

Dominik Mokriš
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    Just FYI, there is [pygalmesh](https://github.com/nschloe/pygalmesh#volume-meshes-from-surface-meshes) which makes working with CGAL a fair bit easier. I don't have an actual answer to your problem though. You're probably best off on the CGAL mailing list. – Nico Schlömer Feb 27 '20 at 22:39

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