Bug summary

When producing a polar plot,set_theta_offset removes the outer gridlines.

Code for reproduction

importnumpyasnpimportmatplotlib.pyplotaspltfig, (ax1,ax2)=plt.subplots(1,2,subplot_kw=dict(projection='polar'))azis=np.radians(np.linspace(0,360,72));r=np.linspace(0,250,250)dats=np.random.rand(250,72)X,Y=np.meshgrid(azis,r)foraxin [ax1,ax2]:ax.contourf(X,Y,dats,cmap="RdYlBu")ax2.set_theta_offset(1.570796327)plt.subplots_adjust(wspace=0.5)

Actual outcome

First axis has no "set_theta_offset", which means the plot starts at 90. Second axis has "set_theta_offset", which rotates the plot to start at 0, but it removes the black outline.

Expected outcome

Expect ax2 above to have a black circular outline as in ax1.

Additional information

No response

Operating system

Windows

Matplotlib Version

3.7.1

Matplotlib Backend

module://matplotlib_inline.backend_inline

Python version

3.11.3

Jupyter version

6.5.4

Installation

conda