On Mon, May 4, 2009 at 10:47 PM, Alan G Isaac <alan.is...@gmail.com> wrote:
> The docs
> http://matplotlib.sourceforge.net/api/pyplot_api.html#matplotlib.pyplot.legend
> suggest that
> loc=(0.5,0.5)
> is equivalent to
> loc='center'
> but it is not.  How can I center the legend
> relative to the x-axis?
>

As you may have noticed, loc with a tuple of two floats is interpreted
as a coordinate for the lower-left corner.

> It seems to me that I need to be able to set
> not only the coordinates but also what part
> of the legend box is placed at those coordinates.
> (Along the lines of LaTeX box placement.)
> Can I do that?
>

You can, but with mpl from svn trunk. For example,

   legend(bbox_to_anchor=(0.5, 0.5), loc="center")

For some more details, take a look at the link below, which is my
work-in-progress legend guide.

http://dl.getdropbox.com/u/178748/mpl/legend_guid/html/legend.html#legend-location

Regards,

-JJ



> Thanks,
> Alan Isaac
>
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Kodak, there's a perfect scanner to get the job done! With the NEW KODAK i700
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processing features enabled. http://p.sf.net/sfu/kodak-com
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