plot_state_city axis labels outside figure boundaries

[jmcelroy01]

Environment

• Qiskit Terra version: 0.21.0

Qiskit Software	Version
qiskit-terra	0.21.0
qiskit-aer	0.10.4
qiskit-ibmq-provider	0.19.2
qiskit	0.37.0
qiskit-nature	0.4.1
qiskit-finance	0.3.3
qiskit-optimization	0.4.0
qiskit-machine-learning	0.4.0

• Python version:

Python version | 3.10.5
Python compiler | GCC

• Operating system:

Linux, OpenSUSE Tumbleweed

What is happening?

I have a Jupyter notebook dark theme set up. The white space generated by calling plot_state_city is not enough for the figure axis labels to be inside it.

Setting a higher value for figsize=() seems to correct it, but the labels also get smaller.

It could be because I have a higher DPI monitor. Not sure whether #3315 could be related or not.

How can we reproduce the issue?

Use non-default Jupyter notebook theme, then:

bell = QuantumCircuit(2)
bell.h(0)
bell.cx(0, 1)
sv = Statevector.from_label('00')
sv.evolve(bell)
plot_state_city(sv)

What should happen?

The white space generated by calling plot_state_city should include enough space for axis labels, and the labels should maybe scale at least to some extent when figsize is increased.

Any suggestions?

No response

[AlexanderGroeger]

I'll take a look at this issue. Since it's a bit old, it is okay to test and fix it in the latest version?

[mtreinish]

Sounds good, I've assigned the issue to you. If you find it's still valid feel free to open a PR to fix it.

[AlexanderGroeger]

Thank you @mtreinish! Can confirm this is still an issue in qiskit-terra v0.25.0. Will look into a solution.