/usr/share/plplot_octave/cool.m is in octave-plplot 5.10.0+dfsg-1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | ## Copyright (C) 1998-2003 Joao Cardoso.
##
## This program is free software; you can redistribute it and/or modify it
## under the terms of the GNU General Public License as published by the
## Free Software Foundation; either version 2 of the License, or (at your
## option) any later version.
##
## This program is distributed in the hope that it will be useful, but
## WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
## General Public License for more details.
##
## This file is part of plplot_octave.
## cmap = cool(m)
##
## Shades of cyan and magenta color map.
## cool(M) returns an M-by-3 matrix containing a "cool" colormap.
## without arguments, cmap has lenght 64
function cmap = cool(m)
if (nargin != 1)
m=64;
endif
r = (0:m-1)'/max(m-1,1);
cmap = [r, 1-r, ones(m,1)];
endfunction
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