def addFacesByConcaveLoop(faces, indexedLoop):
 if (len(indexedLoop) < 3):
  return
 remainingLoop = indexedLoop[:]
 while (len(remainingLoop) > 2):
  remainingLoop = getRemainingLoopAddFace(faces, remainingLoop)

def addFacesByConcaveLoop ( faces , indexedLoop ) : if ( len ( indexedLoop ) < 3 ) : return remainingLoop = indexedLoop [ : ] while ( len ( remainingLoop ) > 2 ) : remainingLoop = getRemainingLoopAddFace ( faces , remainingLoop )
add faces from a polygon which is concave .