Changing the color of the rticklabels in a polar plot

Question

I want to change the color of the rticklabels in a polar plot to white. It works with

ax.set_rgrids([1., 2., 3.], color='white')

However, using set_rgrids I have to give the positions of the ticklabels. I would rather like to use the standard positions, such that I don't have to think about their values for different data sets.

I there a way to directly access and change the color of the rticklabels?

Answer 1

There is a way: for a polar plot, theta and r map onto x and y respectively for the generic axis actions. So - you just do

rlabels = ax.get_ymajorticklabels()
for label in rlabels:
    label.set_color('white')

Documentation for get_ymajorticklabels() shows that it returns a list of Text objects - the actions you can perform on a Text object are in the docs.