Bug report

Bug summary

As in the title. It's not clear what is going wrong with the calculation. It's easy to reproduce.

Code for reproduction

importmatplotlibasmplimportmatplotlib.pyplotaspltdefblank_axes_log_labeled():fig,ax=plt.subplots(figsize=(3,2))ax.set_yscale('log')ax.set_ylim([0.5,2])ax.set_yticks([0.5,0.6,0.7,0.8,0.9,1,2])#, [r"$5\times{}10^{-1}$", "$10^0$"])ax.set_yticklabels([r"$5\times{}10^{-1}$","","","","","$10^0$",""])ax.set_xscale('log')ax.set_xlim([20,1600])returnfigmpl.rcParams['text.usetex']=False# defaultmpl.rcParams['ytick.labelsize']='medium'# defaultfig=blank_axes_log_labeled()fig.savefig('/home/bbeltr1/Downloads/test-no-tex-medium.svg')mpl.rcParams['ytick.labelsize']='x-small'fig=blank_axes_log_labeled()fig.savefig('/home/bbeltr1/Downloads/test-no-tex-x-small.svg')mpl.rcParams['text.usetex']=Truefig=blank_axes_log_labeled()fig.savefig('/home/bbeltr1/Downloads/test-yes-tex-x-small.svg')fig.savefig('/home/bbeltr1/Downloads/test-yes-tex-x-small.pdf')mpl.rcParams['ytick.labelsize']='medium'fig=blank_axes_log_labeled()fig.savefig('/home/bbeltr1/Downloads/test-yes-tex-medium.svg')

Actual outcome

Converted to PNG in Inkscape (guiding lines added manually in Inkscape to clarify the issue):

The SVG Results:

"No Tex, Medium" - Has reasonable spacing

"No Tex, X-small" - Still has reasonable spacing

"Yes Tex, X-small" - Definitely messed up spacing, the two ytick labels don't align at all.

"Yes Tex, Medium" - Default text width withusetex=True, while it looks correct by eye, if you know what you're looking for it's still a couple of pixels off.

The PDF Results:
"Yes Tex, X-small" - Still works correctly.

Expected outcome

ytick labels should be reasonably right aligned, even if usetex=True. Works in PDF backend but not SVG backend.

Matplotlib version

• Operating system: Debian 9 (Jessie)
• Matplotlib version: master
• Matplotlib backend (print(matplotlib.get_backend())): SVG
• Python version:
• Jupyter version (if applicable):
• Other libraries: