我可以在 matplotlib 中的绘图左侧放置一个垂直颜色条吗? [英] Can I place a vertical colorbar to the left of the plot in matplotlib?

问题描述

来自

From the matplotlib command summary for the colorbar method I am aware that the keyword argument orientation := 'horizontal' | 'vertical' as a parameter places an horizontal bar underneath the plot or a vertical to the right of it respectively.

Yet, in my situation, I would rather place the colour bar at the opposite side of the default (without too much fiddling... if possible).

How could I code this? Am I missing some obvious feature?

解决方案

I think the easiest way is to make sure the colorbar is in its own axis. You can adapt from this example:

import matplotlib.pyplot as plt
import numpy as np

fig = plt.figure()
ax = fig.add_subplot(111)
axp = ax.imshow(np.random.randint(0, 100, (100, 100)))
# Adding the colorbar
cbaxes = fig.add_axes([0.1, 0.1, 0.03, 0.8])  # This is the position for the colorbar
cb = plt.colorbar(axp, cax = cbaxes)
plt.show()

which results in this:

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