[Numpy-discussion] Numpy logo in VTK

[klo uo]

Damn it, N is inverted and I noticed it now after posting. Sorry about
that, here is correct one:

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from numpy import arange, ones
import matplotlib.pyplot as plt
from mpl_toolkits.mplot3d import Axes3D

fig = plt.figure()
ax = fig.add_subplot(111, projection='3d')

o = ones(4)
r = arange(4)

# planes:
for z in arange(3)+1:
   ax.bar(r, o*4, zs=z, zdir='x', alpha=.05, width=1)
   ax.bar(r, o*4, zs=z, zdir='y', alpha=.05, width=1)
   ax.bar(r, o*4, zs=z, zdir='z', alpha=.05, width=1)

# N
for i in [1, 2]:
    ax.bar3d([3-i], [0], [i], [.9], [.1], [.9], color='y', linewidth=.1)
    ax.bar3d(o+(i*(-1)**i), o-1, r, o-.1, o-.9, o-.1, color='y', linewidth=.1)

# cage
ax.bar3d([0], [0], [0], [4], [4], [4], alpha=.05, color='w', linewidth=0)

plt.show()
# plt.savefig('numpy.png')
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