"""
===============
Filled contours
===============

`.Axes3D.contourf` differs from `.Axes3D.contour` in that it creates filled
contours, i.e. a discrete number of colours are used to shade the domain.

This is like a `.Axes.contourf` plot in 2D except that the shaded region
corresponding to the level c is graphed 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.contourf(X, Y, Z, cmap=cm.coolwarm)

plt.show()

# %%
# .. tags::
#    plot-type: 3D,
#    level: beginner