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

[Eric F. <ef...@ha...>]

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

>
> My goal is to have a custom function that will serve *both* purposes:
> allow picking the markers only, not the line, of a set of data of any
> length while returning the correct index of that marker/data point.  But
> the code in the custom function is mostly above my head, was written for
> mpl 0.99 or so, and I don't know how to modify it to get both purposes
> achieved.
>
> I attach the current sample again, with the problematic custom picker
> function, "contains_points()".  Thanks for any suggestions or help.
>
> Che
>
>
>
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