Plot contour (level) curves in 3D#

This is like a contour plot in 2D except that the f(x, y)=c curve is plotted on the plane z=c.

from mpl_toolkits.mplot3d import axes3d
import matplotlib.pyplot as plt
from matplotlib import cm

ax = plt.figure().add_subplot(projection='3d')
X, Y, Z = axes3d.get_test_data(0.05)

ax.contour(X, Y, Z, cmap=cm.coolwarm)  # Plot contour curves

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