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Inverting color maps in Matplotlib

Programming
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Python
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Matplotlib
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Cookbooks
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Colors Cookbook
schedule Mar 10, 2022
Last updated
local_offer PythonMatplotlib
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To invert a color map in Matplotlib, attach the _r suffix to the color map, like so:

x = [1,2,3]
y = [4,5,6]
z = [100, 200, 300]
plt.scatter(x, y, c=z, cmap=plt.cm.gray_r, s=200, edgecolor='black')
plt.show()

Here, the key is that we used gray_r instead of gray, which reverses the color map.

The output we get is as follows:

Since we used the inverted color map, the higher the value, the darker it is.

robocat
Published by Isshin Inada
Edited by 0 others
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