I come again with the cube containing around 30 randomly oriented ellipsoids which can cross the faces.  I would like to impose Periodic Boundary Conditions on the faces (PBC were on the To Do list 2 years ago, is it still on it or it's already done ?).

Is there any chance to mesh this problem with Gmsh ?  Imposing a structured mesh (e.g.: transfinite) on all faces seems impossible since faces can contain random ellipses (intersection ellipsoids-plane).  Should I subdivise the faces ?

I tried to solve this problem with Netgen but I have always problems when meshing near at least one cut between sphere and ellipsoids (defined by boolean 3D operations since in Netgen we cannot define 2D surfaces).

I anyone has a hint for this problem, we would be very glad !

Thank you, Olivier

