[Matplotlib-users] 'Poly3DCollection' object has no attribute '_facecolors2d'

[Oliver <oli...@gm...>]

Greetings,

before I submit an issue I usually try to confirm on the mailing list that
the issue I'm experiencing is not just on my system.
At the moment, I've tested this only on my personal laptop, but in virtual
environments.
One venv has mpl version 1.3.1, the other has just been installed (with
only numpy, matplotlib and ipython) and thus has mpl version 1.4.2.

In both environments the following script fails:

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

y,x = np.ogrid[1:10:100j, 1:10:100j]
z = x**2-x*y
z2 = np.cos(x)**3 - np.sin(y)**2
fig = plt.figure()
ax = fig.add_subplot(111, projection='3d')
r = ax.plot_surface(x,y,z2, cmap='hot')
r.get_facecolors()

It fails on the last line with the following traceback:
---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
<ipython-input-13-de0f41d662cd> in <module>()
----> 1 r.get_facecolors()

/home/oliver/.virtualenvs/mpl/local/lib/python2.7/site-packages/mpl_toolkits/mplot3d/art3d.pyc
in get_facecolors(self)
    634
    635     def get_facecolors(self):
--> 636         return self._facecolors2d
    637     get_facecolor = get_facecolors
    638

AttributeError: 'Poly3DCollection' object has no attribute '_facecolors2d'

Can anyone confirm on their system that this is a bug?
I have the same error appearing for `get_facecolor()` (without the s) by
the way.

Regards,

Oliver