Bug report

Bug summary

Doing set_thetalim(0, >2pi) on a polar plot produces an odd result; see below. There are 400 and 500 degree ticks that probably shouldn't be there, and a floating 200 degree tick (but no 300 degree tick...).

I would be pro erroring out if someone tries to set a limit that's not in the range [0, 2pi] - any thoughts?

Code for reproduction

import numpy as np
import matplotlib.pyplot as plt

ax = plt.subplot(111, projection='polar')
ax.set_thetalim(0, 3 * np.pi)

plt.show()

Actual outcome

Expected outcome

Matplotlib version

• Operating system:
• Matplotlib version:
• Matplotlib backend (print(matplotlib.get_backend())):
• Python version:
• Jupyter version (if applicable):
• Other libraries: