Shade 'cells' in polar plot with matplotlib

Question

I\'ve got a bunch of regularly distributed points (θ = n*π/6, r=1...8), each having a value in [0, 1]. I can plot them with their values in matplotlib using

Answer 1

This can be done quite nicely by treating it as a polar stacked barchart:

import matplotlib.pyplot as plt
import numpy as np
from random import choice

fig = plt.figure()
ax = fig.add_axes([0.1, 0.1, 0.8, 0.8], polar=True)

for i in xrange(12*8):
    color = choice(['navy','maroon','lightgreen'])
    ax.bar(i * 2 * np.pi / 12, 1, width=2 * np.pi / 12, bottom=i / 12,
           color=color, edgecolor = color)
plt.ylim(0,10)
ax.set_yticks([])
plt.show()

Produces: