Mercurial > octave-nkf
view scripts/image/lines.m @ 19731:4197fc428c7d
maint: Update copyright notices for 2015.
author | John W. Eaton <jwe@octave.org> |
---|---|
date | Wed, 11 Feb 2015 14:19:08 -0500 |
parents | e8e3a89fa370 |
children | 9fc020886ae9 |
line wrap: on
line source
## Copyright (C) 2012-2015 Rik Wehbring ## ## This file is part of Octave. ## ## Octave 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 3 of the License, or (at ## your option) any later version. ## ## Octave 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. ## ## You should have received a copy of the GNU General Public License ## along with Octave; see the file COPYING. If not, see ## <http://www.gnu.org/licenses/>. ## -*- texinfo -*- ## @deftypefn {Function File} {@var{map} =} lines () ## @deftypefnx {Function File} {@var{map} =} lines (@var{n}) ## Create color colormap. This colormap is composed of the list of colors ## in the current axes @qcode{"ColorOrder"} property. The default is blue, ## green, red, cyan, pink, yellow, and gray. ## The argument @var{n} must be a scalar. ## If unspecified, the length of the current colormap, or 64, is used. ## @seealso{colormap} ## @end deftypefn ## PKG_ADD: colormap ("register", "lines"); ## PKG_DEL: colormap ("unregister", "lines"); function map = lines (n = rows (colormap ())) if (nargin > 1) print_usage (); elseif (! isscalar (n)) error ("lines: N must be a scalar"); endif if (n == 1) map = [0, 0, 1]; elseif (n > 1) C = get (gca, "colororder"); nr = rows (C); map = C(rem (0:(n-1), nr) + 1, :); else map = zeros (0, 3); endif endfunction %!demo %! ## Show the 'lines' colormap as an image %! image (1:64, linspace (0, 1, 64), repmat ((1:64)', 1, 64)); %! axis ([1, 64, 0, 1], "ticy", "xy"); %! colormap (lines (64));