色条 AxesDivider

这个 axes_divider.make_axes_locatable 函数获取现有轴，将其添加到新的 AxesDivider 并返回 AxesDivider . 这个 append_axes 方法 AxesDivider 然后可用于在原始轴的给定侧（“顶部”、“右侧”、“底部”或“左侧”）创建新轴。本例使用 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()