Re: [Matplotlib-users] show annotations only on hovering

[Gregor T. <gre...@gm...>]

Vito De Tullio schrieb:
> Hi all.
> I'm using matplotlib to draw some graph in a pyqt application.
> Is there a way to show infos only when the mouse hover the plot nodes?
> At the moment I'm stuck using this (ugly, and conceptually wrong) piece of
> code, written by me...
>
> basically I add hidden annotations where I need, then (ab)use the 
> fig.canvas.mpl_connect function with the 'motion_notify_event' option.
>
> Is there a "motion_mouse_enter_plot" / "motion_mouse_exit_plot" or something
> similar? I see there is the "pick_event" interface, but I don't want to
> show infos "on click", but "on hovering"
>   
I didn't understand what you mean by 'plot nodes', but there exist 
figure_enter_event, figure_leave_event, axes_enter_event and 
axes_leave_event, see
http://matplotlib.sourceforge.net/examples/event_handling/figure_axes_enter_leave.html

Gregor