void AddFace(int NewFaceID, int n1, int n2, int n3, int n4,
int n12, int n23, int n34, int n41);
void AddFace(int NewFaceID, int n1, int n2, int n3, int n4,
void AddFace(int NewFaceID, int n1, int n2, int n3, int n4,
int n12, int n23, int n34, int n41);
void AddFace(int NewFaceID, int n1, int n2, int n3, int n4,