Python – Sympy Curve.translate() 方法

在 Sympy 中，函数Curve.translate()用于将给定曲线平移给定的 x、y 值。它沿两个方向（即沿 x 轴和 y 轴）平移曲线。

Syntax: Curve.translate(x, y)

Parameters:
x: translation value along x-axis
y: translation value along y-axis

Returns: Translated Curve

示例 #1：

# import Curve, parameter and interpolate
from sympy.geometry.curve import Curve
from sympy.abc import t
from sympy import interpolate
  
# using interpolate() and Curve()
C1 = Curve((t, interpolate([1, 4, 9, 16], t)), (t, 0, 1));
print(C1)
  
# using translate()
C2 = C1.translate(2, 3)
print(C2)

输出：

Curve((t, t**2), (t, 0, 1))  
Curve((t + 2, t**2 + 3), (t, 0, 1))

示例 #2：

# import Curve and parameter
from sympy.geometry.curve import Curve
from sympy.abc import x
  
# using Curve()
C1 = Curve((x, x), (x, 0, 1));
print(C1)
  
# using translate()
C2 = C1.translate(1, 2)
print(C2)

输出：

Curve((x, x), (x, 0, 1))  
Curve((x + 1, x + 2), (x, 0, 1))