On Fri, Aug 17, 2012 at 2:25 PM, Michael Droettboom <md...@stsci.edu> wrote:
> Here's my initial thoughts:
>
> There are a few examples in the event_handling that are going to be much
> simplified by this new infrastructure. They should be updated to point
> people in the direction of this new/better/easier way.
>
> How do the *select* methods relate to the existing pick functionality?
> Does it replace or complement? Are there any inconsistencies in usage
> between the two?
>
I think that in most use cases that I can think of, a user would want to
either use the picking mechanism, which fires an event, or go "whole hog"
and use the interactive manager. Not both....if I remember correctly, I do
call set_picker() in the interactive manager, so that I can set a
reasonable tolerance around the artist for containment purposes...otherwise
it's too hard to point exactly at a line, for example. So there is some
potential for interference there that would need to be looked after in the
new code.
As an aside, all of the on_* methods really encourage the user to use
matplotlib in object oriented way, which I really like, but probably most
people won't. As a bridge for the functional-style users of mpl, we could
just implement all of the on_* methods in the artist.Artist class by
default by having them fire an event. Then if someone overrides the
method, fine, but if they don't, there is an event fired.
> Other than that, I'm not seeing any obvious issues with the MEP. I'd love
> to see the code when it's ready.
>
I'll probably have an example code, still in its mix-in form, in a branch
for you to look at soon. This way, the discussion can turn more concrete.
The example code will also be a runnable sample so that you can play with
the interactivity.
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