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"""
=================================
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``.
"""
import matplotlib.pyplot as plt
from matplotlib import cm
from mpl_toolkits.mplot3d import axes3d
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
plt.show()
# %%
# .. tags::
# plot-type: 3D,
# level: beginner
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