[Matplotlib-users] Correct way of saving properties for plot reconstruction

[Andrew N. <and...@gm...>]

Dear list,
apologies for what might be a simple question. I am creating an application
that uses matplotlib for plotting, using the Qt4Agg backend.  I can create
the figures without a problem.

However, I wish to save the state of the application, including the graphs.
 The complicating factor is that the user may have altered the appearance
of the graphs via a NavigationToolbar.

I have no problems saving the data that makes up the graphs, but how do I
save the properties of the graphs (line colour, linewidth, etc)?
I tried using matplotlib.artist.ArtistInspector(Line2D).properties(). This
gives a dictionary of all the properties. However, when I try to pickle
this I get picking errors:

cPickle.PicklingError: Can't pickle <class 'matplotlib.axes.AxesSubplot'>:
attribute lookup matplotlib.axes.AxesSubplot failed

I am sure that there is an easy way of achieving this, I just can't see it
in the documentation.  I appreciate any help the list is able to give me.

regards,
Andrew



-- 
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Dr. Andrew Nelson


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