matplotlib/examples/mplot3d/bars3d_demo.py at master · flothesof/matplotlib · GitHub

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from mpl_toolkits.mplot3d import Axes3D

import matplotlib.pyplot as plt

import numpy as np

fig = plt.figure()

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

for c, z in zip(['r', 'g', 'b', 'y'], [30, 20, 10, 0]):

xs = np.arange(20)

ys = np.random.rand(20)

# You can provide either a single color or an array. To demonstrate this,

# the first bar of each set will be colored cyan.

cs = [c] * len(xs)

cs[0] = 'c'

ax.bar(xs, ys, zs=z, zdir='y', color=cs, alpha=0.8)

ax.set_xlabel('X')

ax.set_ylabel('Y')

ax.set_zlabel('Z')

plt.show()