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)
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