Is there a way to visualize a block diagram of a drake system?

Question

After I construct a DiagramBuilder and connect systems via ports, I would like to see this system as a visual block diagram, sort of like simulink. Is there a way to export a png of the block diagram or something?

Answer 1

After building the DiagramBuilder into a Diagram, you can call the System::GetGraphvizString function on the Diagram object.

There's an example in the dynamical_systems.ipynb tutorial.