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Description
When plotting multiple topics in rxplot, each topic would be displayed in its own vertically-stacked subplot. Here's an example from a drcsim tutorial.
Based on the discussion of rqt_common_plugins issue 86, I was able to plot topics in separate subplots using rqt_plot, but they are tiled horizontally rather than vertically.
It's nice to have plots stacked vertically, so their timelines are aligned. More generally, it would be nice if rqt plugins could specify a preferred relative position.