Is there a way to plot an image file on a 3D graph surface using Python?
I have seen a couple of ways of plotting this as a plane but I would like the image to drape over the surface of the plot. Is this possible?
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this question might be a bit too broad as it currently is ... you might want to add information: what image? what graph? do you have an example of the result you are trying to achieve? – Julien Spronck May 13 '15 at 09:47
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Not with matplotlib's 3D plotting. It's possible with Mayavi/mlab, however. If you'd like I can give an example. – Joe Kington May 13 '15 at 18:33
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Hi Julien, I am trying to photograph a site and then drape it over topographic data. – SteveResearch May 14 '15 at 16:53
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Joe,I would be really interested to have a look at an example if you have one. – SteveResearch May 14 '15 at 16:54
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You need to change the color of your surface to be the color of the image as in this example suggested by @sarwar.
import matplotlib.pyplot as plt
from mpl_toolkits.mplot3d import Axes3D
from matplotlib.cbook import get_sample_data
from matplotlib._png import read_png
import numpy as np
fn = get_sample_data("lena.png", asfileobj=False)
img = read_png(fn)
x, y = np.mgrid[0:img.shape[0], 0:img.shape[1]]
ax = plt.gca(projection='3d')
ax.plot_surface(x, y, np.sin(0.02*x)*np.sin(0.02*y), rstride=2, cstride=2,
facecolors=img)
plt.show()
That gives as result
nicoguaro
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