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From: shirley@m.cs.uiuc.edu
Newsgroups: comp.graphics
Subject: Re: Best Colormap
Message-ID: <4400072@m.cs.uiuc.edu>
Date: 2 Aug 90 01:46:00 GMT
References: <7955@ucrmath.ucr.edu>
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Nf-ID: #R:ucrmath.ucr.edu:7955:m.cs.uiuc.edu:4400072:000:511
Nf-From: m.cs.uiuc.edu!shirley    Aug  1 20:46:00 1990



There's some nice info on colormap design in an article by Colin Ware
in CG&A vol8, no 5 of '88.  The basic result he claimed (on the basis
of an experiment where users tried to read colors as numbers given
a color legend and a specific colored spot in a data field), was
that a color map that starts at black and goes to white while cycling
through color was best.  My experience says he is right for strictly
positive fields, but some fields should have color->black->color for
neg->zero->pos.

pete shirley