def line_set(person_conf_multi, people_i, point_i, point_j):
    return (person_conf_multi[people_i][point_i][0], person_conf_multi[people_i][point_i][1], person_conf_multi[people_i][point_j][0], person_conf_multi[people_i][point_j][1])
def line_set(person_conf_multi, people_i, point_i, point_j):
    return (person_conf_multi[people_i][point_i][0], person_conf_multi[people_i][point_i][1], person_conf_multi[people_i][point_j][0], person_conf_multi[people_i][point_j][1])