Maybe it´s a silly question but I´m stuck.
I´ve made this
Brep brepSplit = brepFace.Split(contornoSplit.DuplicateSegments(), RhinoDoc.ActiveDoc.ModelAbsoluteTolerance);
This generates a brep with 2 faces:
Now, I want to select the face inside my cutterCurve
But I don´t know how to differentiate between the two faces which is what is inside the cutting curve.