I was also interested in some sort of legend for scatter
> plots recently. To that end I took a bit of a look at the
> legend code this am with a view to adding support for
> RegularPolyCollection's being passed in as handles for
> My idea was just to assume the first element in the
> collection is representative of the others and use that to
> create a suitable RegularPolyPatch to use as the handle.
> I've not got it quite right as yet -- my current code
> produces a big blue blob in the middle of the plot.
> Is it worth me fixing this up and sending in a patch?
I think so, the case of a solid colored scatter with varying sizes
seems sufficiently common to warrant legend support.
So a patch would be great, if you aren't too busy with the Katrina
aftermath these days ...