Created
August 31, 2017 11:55
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''' | |
====================== | |
3D surface (color map) | |
====================== | |
Demonstrates plotting a 3D surface colored with the coolwarm color map. | |
The surface is made opaque by using antialiased=False. | |
Also demonstrates using the LinearLocator and custom formatting for the | |
z axis tick labels. | |
''' | |
from mpl_toolkits.mplot3d import Axes3D | |
import matplotlib.pyplot as plt | |
from matplotlib import cm | |
from matplotlib.ticker import LinearLocator, FormatStrFormatter | |
import numpy as np | |
fig = plt.figure() | |
ax = fig.gca(projection='3d') | |
# Make data. | |
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) | |
# Plot the surface. | |
surf = ax.plot_surface(X, Y, Z, cmap=cm.coolwarm, | |
linewidth=0, antialiased=False) | |
# Customize the z axis. | |
ax.set_zlim(-1.01, 1.01) | |
ax.zaxis.set_major_locator(LinearLocator(10)) | |
ax.zaxis.set_major_formatter(FormatStrFormatter('%.02f')) | |
# Add a color bar which maps values to colors. | |
fig.colorbar(surf, shrink=0.5, aspect=5) | |
plt.show() |
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