in source/backend/chalicelib/nose.py [0:0]
def _is_inside_area_box(area_box, face_box):
return (area_box[0] <= face_box[0] and area_box[1] <= face_box[1] and
area_box[0] + area_box[2] >= face_box[0] + face_box[2] and
area_box[1] + area_box[3] >= face_box[1] + face_box[3])