在python中绘制球体

import numpy as np
import matplotlib.pyplot as plt
from mpl_toolkits.mplot3d import Axes3D

fig = plt.figure()
ax = fig.add_subplot(111, projection='3d')

u = np.linspace(0, 2 * np.pi, 100)
v = np.linspace(0, np.pi, 50)

x = np.outer(np.cos(u), np.sin(v))
y = np.outer(np.sin(u), np.sin(v))
z = np.outer(np.ones(np.size(u)), np.cos(v))

ax.plot_surface(x, y, z, color='b')

plt.show()

from mayavi import mlab

mlab.figure(size=(600, 600), bgcolor=(1, 1, 1))
mlab.mesh(0.5 * np.sin(u) * np.cos(v), 0.5 * np.sin(u) * np.sin(v), 0.5 * np.cos(u), color=(0, 0, 1))

mlab.show()