Then the edge will be surrounded by faces F, G, and H, where G is a face from A, and H is a face from B. We then use the table in step (2) to lookup all possible dihedral angles between G and H.Now here is the key to this idea: given a list of possible dihedral angles between faces for each edge in F, we now compute what the dichoral angle between A and B must be in order for the dihedral angle bet