Bug report

Bug summary

Vertical annotations shrink subplots when a figure handle'stight_layout is set to True. The expectation is that annotations would overlap the subplots.

Looking at the documentation...

https://matplotlib.org/3.2.2/tutorials/intermediate/tight_layout_guide.html#caveats

tight_layout() only considers ticklabels, axis labels, and titles. Thus, other artists may be clipped and also may overlap

With that in mind,tight_layout should not considerText annotations, and shouldn't adjust the subplot size when added.

Code for reproduction

importmatplotlib.pyplotaspltimportnumpyasnpx=np.linspace(0,np.pi*2,1000)y=np.sin(x)dy=np.cos(x)dy2=-np.sin(x)forbin [False,True]:h,ax=plt.subplots(3,1,sharex=True)h.set_tight_layout(b)ax[0].plot(x,y)ax[1].plot(x,dy)ax[2].plot(x,dy2)ax[2].annotate(s=f'Annotation When Tight Layout is{b}',xy= (np.pi,-1),rotation='vertical')

Actual outcome

Expected outcome

In this case,tight_layout is set to FALSE just to see visually what it looks like with the text overlayed

Matplotlib version

• Operating system: CentOS Linux 7 (Core)
• Matplotlib version: 3.2.2
• Matplotlib backend (print(matplotlib.get_backend())): Qt5Agg
• Python version: 3.8.3
• Jupyter version (if applicable):
• Other libraries: numpy 1.18.5

conda

conda-forge