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## Copyright (C) 1999 Paul Kienzle
##
## This program is free software and may be used for any purpose. This
## copyright notice must be maintained. Paul Kienzle is not responsible
## for the consequences of using this software.
## Colormap:
##
## map = copper (number)
## Author: Paul Kienzle <pkienzle@cs.indiana.edu>
## Created: Sept 99
## Modified: jc
function map = copper (number)
if (nargin == 0)
number = 64;
elseif (nargin > 1)
usage ("copper (number)");
endif
x = [0:(number-1)]'/number;
r = clip(1.25*x);
g = clip(0.8*x);
b = clip(0.5*x);
map = [ r, g, b ];
endfunction
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