Is it possible to display 2D array as polar plot using Matplotlib imshow()?

Question

I\'m new to matplotlib (and am loving it!), but am getting frustrated. I have a polar grid represented as a a 2D array. (rows are radial sections, columns are azimuthal sections

Answer 1

After some research I discovered the pcolormesh() function, which has proven to be significantly faster than using pcolor() and comparable to the speed of imshow().

Here is my solution:

import matplotlib.pyplot as plt
import numpy as np

#...some data processing

theta,rad = np.meshgrid(used_theta, used_rad) #rectangular plot of polar data
X = theta
Y = rad

fig = plt.figure()
ax = fig.add_subplot(111)
ax.pcolormesh(X, Y, data2D) #X,Y & data2D must all be same dimensions
plt.show()