Animated Transitions

Are there any good examples of how to animate visualizations on a simple svg chart? Most notebooks I see have their output recreated on every change so the transitions never run.

Found one notebook by Mike which contains a transition call but it doesn’t seem to work (or even be used?)

@jashkenas discusses using this in this post:

I did a probably not recommended workaround here, not using this:
The idea was to just create an essentially static svg cell that I then manipulate from another cell called chart. However, I suspect this is not idiomatic because svg does not have an explicit dependency on chart.

Generally, I’d be curious to hear more ideas for using D3 animations/transitions in Observable.