我正在尝试使用来自：this stackoverflow post的想法创建一个三维彩色条形图。

首先，我使用以下代码创建一个三维条形图：import numpy as np

import matplotlib.colors as colors

import matplotlib.cm as cm

import matplotlib.pyplot as plt

from mpl_toolkits.mplot3d import Axes3D

samples = np.random.randint(91,size=(5000,2))

F = np.zeros([91,91])

for s in samples:

F[s[0],s[1]] += 1

fig = plt.figure()

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

x_data, y_data = np.meshgrid( np.arange(F.shape[1]),

np.arange(F.shape[0]) )

x_data = x_data.flatten()

y_data = y_data.flatten()

z_data = F.flatten()

ax.bar3d(x_data,y_data,np.zeros(len(z_data)),1,1,z_data )

plt.show()

以下是输出：