When I draw a Line2D instance (using plot()), I have set up an interactive
way of clicking on one of the points to return the x-coordinate of the
point. There might be a simpler way to do it, but the way I figured out is:
def on_pick(self, event): # called when clicking on a Line2D point
return [event.artist.get_xdata()[pt].data[0] for pt in
event.artist.contains(event.mouseevent)[1].values()]
my basic interpretation is that I get the point index in the line and then
get the xcoord for that point.
It would be nice to get the xcoord for a scatter point as well, but I
haven't had luck figuring that one out. I can do
event.artist.contains(event.mouseevent) to get the index for the
scatterpoint, but apparently there's no get_xdata() tied to the
regularpolygon instance.
paul
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