plot_system_graphviz should use ipython display with svg instead of matplotlib png in jupyter

[RussTedrake]

I've made this change in my course notes... it outputs and renders an svg instead of a grainy downsampled bitmap in matplotlib.
The diagram in dynamical_systems_tutorial is currently embarrasingly bad.

It would require adding pydot as a python requirement.
this may become obsolete if we fix #13874

[jwnimmer-tri]

The diagram in dynamical_systems_tutorial is currently embarrasingly bad.

At least as of today, the figures in our tutorials look fine to me.

It's not clear to me exactly what the problem or call to action is here. The plot_system_graphviz has used pydot since 2017.

Or did you mean the call to plt.imshow? Maybe that used to do poorly, but it looks fine today.

Maybe we should close this?

[RussTedrake]

I agree that original issue description is stale. The dynamical_systems tutorial was changed to use pydot in 97b1531
and looks great.

However, if you replace the lines in dynamical_systems.ipynb on deepnote

display(SVG(pydot.graph_from_dot_data(
    diagram.GetGraphvizString(max_depth=2))[0].create_svg()))

with

from pydrake.all import plot_system_graphviz
plot_system_graphviz(diagram)

the the output is much worse. (it is rasterized, and i don't believe it supports scrolling the same way, etc).

I think the issue should stay open, and yes the call to action is to have plot_system_graphviz use IPython.display instead of plt.imshow.

And presumably the multiple tutorials which call the display(SVG( version should be able to once again use plot_system_graphviz.