2011/1/14 Thøger Emil Juul Thorsen <thoe...@fys.ku.dk>
> Hi list;
>
> I am trying to do an imshow() comparison of four different data sets
> (astronomical photos), and since I want to show the differences in
> strength, I use fixed vmin and vmax.
>
> I would very much like one and only one colour bar for the entire
> figure, but I haven't been able to figure out how to do it without
> creating an entire subplot for it, and that is really kludgey and
> unhandy.
>
> I tried the Interwebz but have had no luck figuring it out.
>
> Cheers;
>
> Emil
>
>
Emil,
I had this problem once before. You can use the axes_grid1 tool to do this:
http://matplotlib.sourceforge.net/mpl_toolkits/axes_grid/users/overview.html
Unfortunately, our documentation is a little broken on that page, but if you
take a look at this source code example, you can see how to use AxesGrid to
create a subplot grid that pre-allocates space for a single cbar
automatically!
http://matplotlib.sourceforge.net/plot_directive/mpl_toolkits/axes_grid/examples/demo_axes_grid.py
I hope this helps!
Ben Root
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