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How to change the font properties of a Matplotlib colorbar label?
To change the font properties of a matplotlib colorbar label, we can take the following steps −
Set the figure size and adjust the padding between and around the subplots.
Create x, y and z data points using numpy.
Use imshow() method to display the data as an image, i.e., on a 2D regular raster.
Create a colorbar for a ScalarMappable instance, *mappable*.
Using colorbar axes, set the font properties such that the label is bold.
To display the figure, use show() method.
Example
import numpy as np import matplotlib.pyplot as plt plt.rcParams["figure.figsize"] = [7.50, 3.50] plt.rcParams["figure.autolayout"] = True x, y = np.mgrid[-1:1:100j, -1:1:100j] z = (x + y) * np.exp(-5.0 * (x ** 2 + y ** 2)) plt.imshow(z, extent=[-1, 1, -1, 1]) cb = plt.colorbar cb.set_label(label='my color bar label', weight='bold') plt.show()
Output
Updated on: 04-Jun-2021
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