How to use pcolormesh. Apply a grid color scheme to a graph

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Release date:2023/12/10　　　　　　　　　

・In Japanese

■Description of the pcolormesh function

Adds a grid color scheme to the graph. This is useful when you want to visualize the boundaries of a graph.

■Specific example using pcolormesh function

import numpy as np
import matplotlib.pyplot as plt

X, Y = np.mgrid[-20:20:0.1, -1:40:0.1]　# Define the X and Y axes
Z = Y-0.1*X*X >0

plt.pcolormesh(X, Y, Z,alpha=0.1)　# Color according to the Z value. alpha is the transmittance.
plt.show()

The results are as follows.

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