[Matplotlib-users] Plotting a imshow() image in 3d in matplotlib

[Raj K. M. <raj...@gm...>]

Hi,

How to plot a imshow() image in 3d axes? I was trying with this post
<http://stackoverflow.com/a/25295272/4920782>. In that post, the surface
plot looks same as imshow() plot but actually they are not. To demonstrate,
here I took different data:

import matplotlib.pyplot as plt
from mpl_toolkits.mplot3d import Axes3D
import numpy as np

# create a 21 x 21 vertex mesh
xx, yy = np.meshgrid(np.linspace(0,1,21), np.linspace(0,1,21))

# create vertices for a rotated mesh (3D rotation matrix)
X =  xx
Y =  yy
Z =  10*np.ones(X.shape)

# create some dummy data (20 x 20) for the image
data = np.cos(xx) * np.cos(xx) + np.sin(yy) * np.sin(yy)

# create the figure
fig = plt.figure()

# show the reference image
ax1 = fig.add_subplot(121)
ax1.imshow(data, cmap=plt.cm.BrBG, interpolation='nearest', origin='lower',
extent=[0,1,0,1])

# show the 3D rotated projection
ax2 = fig.add_subplot(122, projection='3d')
ax2.plot_surface(X, Y, Z, rstride=1, cstride=1,
facecolors=plt.cm.BrBG(data), shade=False)



The plots are here
<http://www.physics.iitm.ac.in/%7Eraj/imshow_plot_surface.png>. Is there
any other way to solve this issue?

I have posted this question
<http://stackoverflow.com/questions/30464117/plotting-a-imshow-image-in-3d-in-matplotlib>
on stackoverflow.


Thanks
Raj



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Raj Kumar Manna
Complex Fluid & Biological Physics Lab
IIT Madras

Ph. No. 8144637401

alternate email: ra...@ph... <raj...@gm...>
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