CFD Online Discussion Forums - Get cell ids from interior face

Hi,

I would like to get all cell ids from a face that is in the interior of my mesh.
This is my structure for the sequence of events:
- pass the desired faces via the fvSolution file to the solver:

Code:

myfaces ((0 3 7 8) (2 3 6 9));

- import them in the solver
- loop over the faces in the solver and get their global cell id, like I would do with a list of patches

Code:

label patchI = mesh.boundaryMesh().findPatchID(mypatches());

I couldn't find a way to do this, because I don't know which data type to use, labellistlist ?
I can't use patches for that, because they require a boundary condition, which my considered cells don't have.