python 四边形分割

from sympy.geometry import ( Line, Point)

if __name__ == '__main__':

    p1 = Point(10, 10)
    p2 = Point(100, 8)

    l1 = Line(p1, p2)
    p3 = Point(100, 200)
    p4 = Point(12, 208)

    l2_1 = Line(p1, p4)
    l2_2 = Line(p2, p3)

    p5=Point(30,30)

    line3 = l1.parallel_line(p5) #求平行线
    print(line3)
    new_p1= line3.args[1]

    new_line2= Line(p2, p1).parallel_line(p5)
    print(new_line2)
    new_p2=new_line2.args[1]

    new_line=Line(new_p1, new_p2)

    print(new_line)
    line3=l2_1.intersection(new_line)  #交点
    print(line3[0].x.p/line3[0].x.q,line3[0].y.p/line3[0].y.q)

    line3=l2_2.intersection(new_line)  #交点
    print(line3[0].x.p/line3[0].x.q,line3[0].y.p/line3[0].y.q)