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How to set legend marker size and alpha in Matplotlib?
To set legend marker size and alpha in matplotlib, we can take the following steps −
Steps
Set the figure size and adjust the padding between and around the subplots.
Initialize a variable N to store the number of sample data.
Plot the x and y data points with marker="*".
Place a legend on the figure.
Set the marker size and alpha value of the marker.
To display the figure, use show() method.
Example
import matplotlib.pyplot as plt import numpy as np plt.rcParams["figure.figsize"] = [7.50, 3.50] plt.rcParams["figure.autolayout"] = True N = 10 x = np.random.rand(N) y = np.random.rand(N) line, = plt.plot(x, y, marker='*', markersize=20, markeredgecolor='black', alpha=0.4, ls='none', label='Random Data') legend = plt.legend(loc='upper right') legend.legendHandles[0]._legmarker.set_markersize(15) legend.legendHandles[0]._legmarker.set_alpha(1) plt.show()
Output
It will produce the following output −
Updated on: 02-Feb-2022
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