On Tue, Oct 5, 2010 at 11:39 PM, Daniel Hyams <dhy...@gmail.com> wrote:
>
> I've run across a strange problem and perhaps I'm misusing something. I
> was trying to set up picking so that I can interact with plotted objects,
> and I get alot of error spew that looks like this:
>
> while checking <class 'matplotlib.lines.Line2D'>
> Traceback (most recent call last):
> File "C:\Python26\lib\site-packages\matplotlib\artist.py", line 241, in
> hitlist
> hascursor,info = self.contains(event)
> File "C:\Python26\lib\site-packages\matplotlib\lines.py", line 286, in
> contains
> path, affine = self._transformed_path.get_transformed_path_and_affine()
> AttributeError: 'NoneType' object has no attribute
> 'get_transformed_path_and_affine'
>
> This can be reproduced by the following code, even though there is no
> picking involved...just mouse motion. Is there possibly a workaround for
> this, or am I doing something wrong?
>
> import sys
> from pylab import *
>
> ax = subplot(111)
> ax.plot([0,1,2,3])
>
> def on_move(event):
> if event.inaxes:
> lst = ax.hitlist(event)
> print lst
>
> binding_id = connect('motion_notify_event', on_move)
>
>
> show()
>
>
> --
> Daniel Hyams
> dhy...@gmail.com
>
>
Daniel,
I am not exactly sure of your exact issue, but I did notice something a
little off about your current code. In on_move(), you reference 'ax', but
that is never passed in or defined in the function itself. Therefore, it is
refering to the 'ax' that is in your global namespace. This seems to be a
side issue, however.
Ben Root
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