Python | Sympy 椭圆. rotate()方法
原文:https://www . geesforgeks . org/python-sympy-ellipse-rotate-method/
In Sympy, the function rotate() is used to rotate the ellipse counterclockwise about the given point by the given angle.
Syntax: Ellipse.rotate(angle=0, pt=None)
Parameters:
angle: in radian
pt: point about which ellipse is rotated in counterclockwise.
Returns: rotated ellipse
示例#1:
# import sympy and pi, Ellipse
from sympy import Ellipse, pi
# using Ellipse() method
e1 = Ellipse((1, 0), 2, 1)
# using rotate() method
e1.rotate(pi / 2)
print(e1)
输出:
Ellipse(Point2D(0, 1), 1, 2)
示例#2:
# import sympy and pi, Ellipse
from sympy import Ellipse, pi
# using Ellipse() method
e2 = Ellipse((1, 0), 2, 1)
# using rotate() with given point method
e2.rotate(pi / 2, (1, 2))
print(e2)
输出:
Ellipse(Point2D(3, 2), 1, 2)
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