def point_pair2poly(point_pair_list):
    """
    Transfer vertical point_pairs into poly point in clockwise.
    """
    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/utils/e2e_utils/extract_textpoint_fast.py