python - Matplotlib density plot in polar coordinates? -

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i have array saved txt file has entries corresponding value of distribution in polar coordinates. looks this:

  f(r1,theta1) f(r1, theta2) ..... f(r1, theta_max)   f(r2,theta1) f(r2, theta2) .....        .         .                                 .         .                                 .         .                                 .   f(r_max,theta1) .................f(r_max, theta_max)

i want density plot of f (the higher f is, more red want color be). there way matplotlib? explicit code helpful, majorly new this.

in example, a theta1...thetan, b r1...rn, c f(a, b):

#fake data: = np.linspace(0,2*np.pi,50) b = np.linspace(0,1,50) a, b = np.meshgrid(a, b) c = np.random.random(a.shape)  #actual plotting import matplotlib.cm cm ax = plt.subplot(111, polar=true) ax.set_yticklabels([]) ctf = ax.contourf(a, b, c, cmap=cm.jet) plt.colorbar(ctf)

enter image description here

essentially filled contour plot in polar axis. can specify alternative colormap cmap=.... cm.jet goes blue red, red being largest value.


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