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'''

====================

3D plots as subplots

====================

Demonstrate including 3D plots as subplots.

'''

import matplotlib.pyplot as plt

from mpl_toolkits.mplot3d.axes3d import Axes3D, get_test_data

from matplotlib import cm

import numpy as np

# set up a figure twice as wide as it is tall

fig = plt.figure(figsize=plt.figaspect(0.5))

#===============

# First subplot

#===============

# set up the axes for the first plot

ax = fig.add_subplot(1, 2, 1, projection='3d')

# plot a 3D surface like in the example mplot3d/surface3d_demo

X = np.arange(-5, 5, 0.25)

Y = np.arange(-5, 5, 0.25)

X, Y = np.meshgrid(X, Y)

R = np.sqrt(X**2 + Y**2)

Z = np.sin(R)

surf = ax.plot_surface(X, Y, Z, rstride=1, cstride=1, cmap=cm.coolwarm,

linewidth=0, antialiased=False)

ax.set_zlim(-1.01, 1.01)

fig.colorbar(surf, shrink=0.5, aspect=10)

#===============

# Second subplot

#===============

# set up the axes for the second plot

ax = fig.add_subplot(1, 2, 2, projection='3d')

# plot a 3D wireframe like in the example mplot3d/wire3d_demo

X, Y, Z = get_test_data(0.05)

ax.plot_wireframe(X, Y, Z, rstride=10, cstride=10)

plt.show()