On Thursday, June 14, 2012, Jonathan Hayward wrote:
> This is something I'd like to be able to produce, but for millions of
> records, where the center will look like one undifferentiated mass of dark
> Is there a way to let something like that scale better to large sizes? For
> instance, is it possible to have a point be one pixel and an RGBA color of
> 00000001 (black color one notch away from complete transparency)? Or for
> another approach, is it possible to say "I want the highest value to be the
> darkest color, e.g. black and everything else to be greyscale against its
> percentage of the maximum value?
> Other suggestions?
Have you taken a look at hexbin()? It is usually what I use for situations