def point_pair2poly(self, point_pair_list):
        """
        Transfer vertical point_pairs into poly point in clockwise.
        """
        # constract poly
        point_num = len(point_pair_list) * 2
        point_list = [0] * point_num
        for idx, point_pair in enumerate(point_pair_list):
            point_list[idx] = point_pair[0]
            point_list[point_num - 1 - idx] = point_pair[1]
        return np.array(point_list).reshape(-1, 2)

        Transfer vertical point_pairs into poly point in clockwise.
        
pytorchocr/postprocess/sast_postprocess.py