I've got the NavigationToolbar2 going nicely on my app
(OO, embedded in wx, mpl 0.98.5), and was wondering
how difficult it might be to change how the pan works,
in the following way...
Right now, when I show a plot, I am grabbing a subset
of data from the database. Panning within that plot
allows exploration of *just that data*. E.g., if I have
values between x = 100 and x = 200, I can pan past
either of these values, but there are no more data points
beyond that, because I didn't fetch those points when I
created the plot.
What would be nice is if, on panning, I could fetch
new points, namely those that are found in that part of
the x axis. This would be just like Google Maps' ability
to allow one to pan the map over and see new land area,
because it fetches those land patches of the map.
I could of course just fetch all the data I have first
and set the x limits to show the requested subset
of data initially, but I thought maybe it would
be more efficient to only get what is requested and
then grab more data on pans. I thought I'd ask if
anyone had done something like this already.