[Haskell-cafe] library for drawing charts

[Peter Gammie]

Hello,

Has anyone got some code for drawing charts?

I don't mean graphs of functions, ala

http://dockerz.net/twd/HaskellCharts

and I don't mean calls to the Google Charts API ala

http://community.livejournal.com/evan_tech/241080.html

I would like something that can generate PNGs in memory, i.e. not  
directly to a file.

This is close to what I have in mind:

http://www.fred.net/brv/chart/

I'd like 2D pie charts, bar charts and something like a google-o-meter.

Any pointers?

cheers
peter