Python数据分析三大框架之matplotlib(三)3D图像绘制
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2022-03-25 13:42:08
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3D图像的绘制
import matplotlib.pyplot as plt
import numpy as np
from mpl_toolkits.mplot3d import Axes3D
fig = plt.figure()
ax = Axes3D(fig)
# X, Y value
X = np.arange(-4, 4, 0.25)
Y = np.arange(-4, 4, 0.25)
# 网格化
X, Y = np.meshgrid(X, Y)
R = np.sqrt(X**2 + Y**2)
# Height vale
Z = np.sin(R)
ax.plot_surface(X, Y, Z, rstride=1, cstride=1, cmap= plt.get_cmap('rainbow'))
ax.contourf(X, Y, Z, zdir='z', offset=-2, cmap='rainbow')
ax.set_zlim(-2, 2)
plt.show()