带有AxesDivider

该axes_divider.make_axes_locatable函数采用现有轴，将其添加到新轴AxesDivider并返回AxesDivider. 然后可以使用的append_axes 方法在原始轴的给定侧（“顶部”、“右侧”、“底部”或“左侧”）创建新轴。AxesDivider此示例用于append_axes在轴旁边添加颜色条。

import matplotlib.pyplot as plt
from mpl_toolkits.axes_grid1.axes_divider import make_axes_locatable

fig, (ax1, ax2) = plt.subplots(1, 2)
fig.subplots_adjust(wspace=0.5)

im1 = ax1.imshow([[1, 2], [3, 4]])
ax1_divider = make_axes_locatable(ax1)
# Add an Axes to the right of the main Axes.
cax1 = ax1_divider.append_axes("right", size="7%", pad="2%")
cb1 = fig.colorbar(im1, cax=cax1)

im2 = ax2.imshow([[1, 2], [3, 4]])
ax2_divider = make_axes_locatable(ax2)
# Add an Axes above the main Axes.
cax2 = ax2_divider.append_axes("top", size="7%", pad="2%")
cb2 = fig.colorbar(im2, cax=cax2, orientation="horizontal")
# Change tick position to top (with the default tick position "bottom", ticks
# overlap the image).
cax2.xaxis.set_ticks_position("top")

plt.show()