python计算平行线

用的库：sympy

点平移：

from sympy.geometry import ( Line, Point)

if __name__ == '__main__':

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

    ccc= p1.translate(1, 1)
    print(ccc)

python移动平行线：

p1是起点的新位置，

from sympy.geometry import ( Line, Point)


p1 = Point(3, 3)

p3 = Point(2, 5)
p4 = Point(4, 1)



l2_1 = Line(p3, p4)
line3=l2_1.parallel_line(p1) #== Line(Point(0, 0), Point(0, -1))

print(line3)

参考：

3D-Printing-Project/test_line.py at 6eff2181d087d93dab51b21e20835cd96275e976 · nishanthrs/3D-Printing-Project · GitHub

向量夹角：

angle_between 

垂线

perpendicular_line

点到直线距离：

distance

线段焦点：

from sympy.geometry import ( Line, Point)


p1 = Point(3, 1)
p2 = Point(1, 8)

l1 = Line(p1, p2)
p3 = Point(2, 2)
p4 = Point(4, 4)



l2_1 = Line(p3, p4)

line3=l2_1.intersection(l1)

print(line3)