code: def get_3rd_point(a, b):
      direct = a - b
      return b + np.array([-direct[1], direct[0]], dtype=np.float32)
  
file_path: PaddleHub/modules/image/semantic_segmentation/ace2p/processor.py
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import os
  import time
  import base64
  import cv2
  import numpy
  from PIL import Image
label_desc: Use image node_id 6 for calling a global function with example usage: get_3rd_point(a, b) and returns: unknown