From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <85f83229e10e554410d6d6922cbfb3c0@plan9.bell-labs.com>
From: Eric Grosse <ehg@lucent.com>
To: 9fans@cse.psu.edu
Subject: Re: [9fans] alg to make a good colour palette for a graph
In-Reply-To: <20030221160829.1b2eca90.ggm@apnic.net>
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Date: Fri, 21 Feb 2003 01:39:04 -0500
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It depends on the monitor.  Take a look at
   http://plan9.bell-labs.com/cm/cs/doc/85/4-01.ps.gz
That solution (which used l2 optimization over a psychophysical
color difference metric) gave very good results, but is way too
complicated for awk.    You can run the computation once, build
a decent spline approximation to the hue curve, and use awk to
interpolate in the table, given <n>.   That's the approach of
   http://plan9.bell-labs.com/netlib/graphics/rainbow.c.gz

Eric