Nevermind on my earlier question on artists and using datacursor.  I
figured that one out.  What I did was basically (after creating the
image and contours):

artist = gca().images
datacursor(artist)

and it worked!

Jon

On Wed, 2013-03-13 at 15:50 -0400, Jonathan Slavin wrote:
> Joe,
> 
> Thank you!  I will especially use it to get the z value in images.  I
> started to try to do something like this once but never finished.
> 
> One thing I'm having a bit of trouble with is providing an artist as an
> argument.  The reason I wanted to do that is to look only at the values
> for the image and not those for the contours drawn on the image.  How
> does that work exactly?
> 
> As a side note, I thought that I had found a bug because an I was
> looking at image would, in some places, print only the x and y values
> but not the z value.  Then I realized it was printing the values for a
> contour that I had made invisible by setting its edgecolor to 'None'.
> This was because the contour created had two parts and I only wanted to
> show one of them.  Anyone know a different way to do that?
> 
> Regards,
> Jon
> 
> On Tue, 2013-03-12 at 22:58 -0500, Joe Kington wrote:
> > I recently got around to polishing up a snippet I've been using for
> > quite awhile.  https://github.com/joferkington/mpldatacursor/  and I
> > was hoping to get some feeding on the current implementation.
> > 
> > 
> > "mpldatacursor" allows a user to easily click on an artist and display
> > a customizable, interactive pop-up box displaying information about
> > the selected artist (e.g. x & y, label, z for images and collections,
> > etc).  It's a stand-alone module (and in pypi), but you could also
> > just download the examples directory from github and copy the
> > mpldatacursor.py file into it to try things out.
> > 
> > 
> > A few key questions:
> > 
> >      1. Is this something that anyone else finds useful?  
> >         
> >      2. Does it seem intuitive?
> >         
> >      3. Does the implementation seem flexible enough for most needs?
> >         (Note that any additional kwargs are passed on to annotate to
> >         create the "data cursor", so the appearance of the box is
> >         customizable through annotation kwargs.)
> >         
> >      4. Are there any obvious features missing?
> >         
> >      5. Any suggestions? (especially better name suggestions...)
> > 
> > If it is something that other people find useful, I'd be happy to
> > submit a pull request to incorporate it into matplotlib.  (If I did,
> > it would probably be best to drop the HighlightDataCursor class, as
> > its limited in what it can do.)
> > 
> > Thanks a bunch!
> > 
> > -Joe
> > 
> > 
> > 
> 

-- 
______________________________________________________________
Jonathan D. Slavin              Harvard-Smithsonian CfA
jsla...@cfa.harvard.edu         60 Garden Street, MS 83
phone: (617) 496-7981           Cambridge, MA 02138-1516
 cell: (781) 363-0035           USA
______________________________________________________________


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