How to get around the meshing algorithm getting stuck with "removing" Triangles

Question

Dear All

As part of my code where I work with a spherical shell of radii Rin and Rout
I made Rin rather small and the Meshing algorithm got stuck with removing
triangles for a rather long time i.e. 10 minutes or more.

Any help will be appreciated.

regards
Moritz

Answer 1

You need to be careful when you define the geometries you feed into the mesh generator. The mesh generation (in CGAL) can fail badly in some cases. Some general recommendations are to rescale all geometries to ca unit size (so no very large or no very small numbers), and to start with a simple geometry and gradually change to what you need.