| """ | |
| ===================== | |
| Demo of 3D bar charts | |
| ===================== | |
| A basic demo of how to plot 3D bars with and without shading. | |
| """ | |
| import matplotlib.pyplot as plt | |
| import numpy as np | |
| # set up the figure and axes | |
| fig = plt.figure(figsize=(8, 3)) | |
| ax1 = fig.add_subplot(121, projection='3d') | |
| ax2 = fig.add_subplot(122, projection='3d') | |
| # fake data | |
| _x = np.arange(4) | |
| _y = np.arange(5) | |
| _xx, _yy = np.meshgrid(_x, _y) | |
| x, y = _xx.ravel(), _yy.ravel() | |
| top = x + y | |
| bottom = np.zeros_like(top) | |
| width = depth = 1 | |
| ax1.bar3d(x, y, bottom, width, depth, top, shade=True) | |
| ax1.set_title('Shaded') | |
| ax2.bar3d(x, y, bottom, width, depth, top, shade=False) | |
| ax2.set_title('Not Shaded') | |
| plt.show() | |