I'm working on Mapserver to do beautiful maps with AGG rendering
Until now, I've only thought about the best way to get color maps. Now, I have to think how to make color ones compatible with a grey scale printing http://en.wikipedia.org/wiki/Grayscale
How do you deal with this?
Any advices, tips or resources will be welcome.
Edit : My question is really more relative to visual perception than Mapserver. It seems I will have to read Semiology of Graphics by Jacques Bertin (reedited this year http://www.esri.com/news/releases/10_4qtr/bertin.html ) or look on Edward Tufte various book/articles http://www.edwardtufte.com/tufte/