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我已经设法绘制一个矢量场和一个等高线图,并且想将它们显示在彼此之上,我环顾四周,但不太了解图和子图的工作方式。这里是我的代码:如何绘制matplotlib中等值线图上的矢量场?
from matplotlib.pyplot import cm
import numpy as np
import matplotlib.pyplot as plt
# Vector Field
Y, X = np.mgrid[-2:2:20j, -2:2:20j]
U =(1 - 2*(X**2))*np.exp(-((X**2)+(Y**2)))
V = -2*X*Y*np.exp(-((X**2)+(Y**2)))
speed = np.sqrt(U**2 + V**2)
UN = U/speed
VN = V/speed
plt.quiver(X, Y, UN, VN,
color='Teal',
headlength=7)
plt.show()
# Countour Plot
X, Y = np.mgrid[-2:2:100j, -2:2:100j]
Z = X*np.exp(-(X**2 + Y**2))
cp = plt.contourf(X, Y, Z)
plt.colorbar(cp)
plt.show()