Yes, those tools do "snarf" up pick events via the widgetlock mechanism,
IIRC. This is entirely intentional, and I an not sure there is a bug here
to fix.


On Thu, Aug 21, 2014 at 12:01 PM, Thomas Caswell <tcasw...@gmail.com> wrote:

> On Thu, Aug 21, 2014 at 9:44 AM, Michael Kaufman <kaufma...@ornl.gov>
> wrote:
> >
> >    # plot axvlines here... etc.
> >
> >    global cids
> >
> >    # remove any previous connections
> >    for i in cids:
> >       gcf().canvas.mpl_disconnect(i)
> >    cids = []
> >
> >    cids.append(gcf().canvas.mpl_connect('pick_event',self.pick))
> >    cids.append(gcf().canvas.mpl_connect('button_press_event',self.click))
> >
> >    draw()
> >
> > def pick(self, event):
> >    thisline = event.artist
> >    xdata, ydata = thisline.get_data()
> >    print xdata[0]
> >
> > def click(self, event):
> >    print "clicked"
>
>
> See this minimal example
>
> ```
> import matplotlib.pyplot as plt
> fig, ax = plt.subplots()
>
> ax.axvline(.5, picker=6)
> ax.plot(range(3))
> cids = []
>
> plt.draw()
>
> def pick(event):
>    thisline = event.artist
>    xdata, ydata = thisline.get_data()
>    print xdata[0]
>
> def click(event):
>    print "clicked"
>
>
> cids.append(fig.canvas.mpl_connect('pick_event', pick))
> cids.append(fig.canvas.mpl_connect('button_press_event', click))
>
> ```
>
> If you turn the zoom/pan tool off the picker works again.  I suspect
> that there is some logic underneath those tools that are snarfing
> events when the are turned on to avoid messy conflicts.  There is some
> work going on (MEP22 iirc) to update the toolbar and make our tool
> handling saner.
>
> Tom
> --
> Thomas Caswell
> tcasw...@gmail.com
>
>
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