Thread: [Matplotlib-users] Event handling

Hi all,

Is it possible to restrict the mouse movements to the 
points of a graph (curve tracking) ?

So far I am able to obtain the location of the mouse in 
data coordinates if the mouse is over an axes.

A code snippet is attached.

Thanks in advance.

                             Nils
  

On Tue, Jan 27, 2009 at 2:15 AM, Nils Wagner
<nw...@ia...> wrote:
> Hi all,
>
> Is it possible to restrict the mouse movements to the points of a graph
> (curve tracking) ?


No, but you can obtain the vertices of the line that are within a
tolerance of the clicked point using the picking functions.  See the
tutorial at

  http://matplotlib.sourceforge.net/users/event_handling.html

and the "pick*" demos at

  http://matplotlib.sourceforge.net/examples/event_handling/index.html

JDH