Python | synpy plane.projection_line()方法
原文:https://www.geesforgeks.org/python-sympy-plane-projection_line-method/
In Sympy, the function Plane.projection_line() is used to project the given line onto the given plane through the normal plane containing the line.
Syntax: Plane.projection_line(line)
Parameters:
line: LinearEntity or LinearEntity3D
Returns: Point3D, Line3D, Ray3D or Segment3D
示例#1:
# import sympy and Plane, Line, Line3D, Point, Point3D
from sympy import Plane, Line, Line3D, Point, Point3D
p = Line(Point(1, 2), Point(2, 3))
# using Plane()
p1 = Plane(Point3D(1, 2, 3), normal_vector =(1, 0, 1))
# using projection_line()
projectionLine = p1.projection_line(p)
print(projectionLine)
输出:
Line3D(Point3D(5/2, 2, 3/2), Point3D(3, 3, 1))
示例 2:
# import sympy and Plane, Line, Line3D, Point, Point3D
from sympy import Plane, Line, Line3D, Point, Point3D
p = Line3D(Point3D(1, 2, 3), Point(0, 0, 0))
# using Plane()
p2 = Plane(Point3D(1, 1, 1), normal_vector =(0, 0, 0))
# using projection_line()
projectionLine = p2.projection_line(p)
print(projectionLine)
输出:
Line3D(Point3D(1, 2, 3), Point3D(2, 0, 2))
