Re: [Matplotlib-users] pick markers only but not the connecting line

[C M <cmp...@gm...>]

On Sat, Jun 7, 2014 at 10:18 PM, Eric Firing <ef...@ha...> wrote:

> On 2014/06/07, 4:12 PM, C M wrote:
> > I had been using a custom function (written originally by Jae-Joon and
> > modified a little by me...quite a long time back now) that was working
> > to allow point picking of markers, but *not* the line connecting them.
> > However, I've now discovered with the help of this list that the
> > function I am using has the disadvantage that if there are more than 100
> > data points, I can't get the correct index for the picked marker (turned
> > out not to be a mpl bug:
> > https://github.com/matplotlib/matplotlib/issues/3124).
> >
> > So I can just use the default pick event, but then the user can pick
> > anywhere on the connecting line, which is meaningless in this use--so I
> > don't want them to be able to pick on the connecting line.
>
> Why not just execute plot twice, once with the markers, with picking
> activated, and a second time with the line, with picking inactive (the
> default).
>
> Eric
>

That is so simple, and I hadn't thought of it at all.  Thank you!  My only
concerns would be for slowness of plotting if there are a lot of points and
just code simplicity, and so if there could be some other way with a custom
function for the picker that would do this, I would probably prefer that.
But maybe neither of these are particularly important concerns.

Che