Mercurial > octave-antonio
view scripts/image/autumn.m @ 16984:997efb8d0b19
imread: implement options Index, Frames, and Info.
* imread.m: write documentation about options of param/key style.
* private/core_imread.m: write parsing of options in the param/key style.
Implement the option for Index, Frames, and Info. Also write parsing
for PixelRegion but comment out the code until it's implemented in
__magick_read__(). Add comments about, and deprecate, Octave's native
image format which is completely undocumented. Remove tests since they
are duplicated from the ones in imread.m.
* __magick_read__.cc: move input check to the m file calling it. Rewrite
parsing of options which are now in a non-optional struct (default values
are now set on the m function).
* private/imageIO.m: fix call to other functions with varargout with
multiple output values.
author | Carnë Draug <carandraug@octave.org> |
---|---|
date | Sat, 13 Jul 2013 12:41:59 +0100 |
parents | 1a800034d443 |
children | d63878346099 |
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## Copyright (C) 1999-2012 Kai Habel ## ## 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} =} autumn () ## @deftypefnx {Function File} {@var{map} =} autumn (@var{n}) ## Create color colormap. This colormap ranges from red through orange ## to yellow. ## The argument @var{n} must be a scalar. ## If unspecified, the length of the current colormap, or 64, is used. ## @seealso{colormap} ## @end deftypefn ## Author: Kai Habel <kai.habel@gmx.de> ## PKG_ADD: colormap ("register", "autumn"); ## PKG_DEL: colormap ("unregister", "autumn"); function map = autumn (n) if (nargin == 0) n = rows (colormap); elseif (nargin == 1) if (! isscalar (n)) error ("autumn: N must be a scalar"); endif else print_usage (); endif if (n == 1) map = [1, 0, 0]; elseif (n > 1) r = ones (n, 1); g = [0:(n-1)]' / (n - 1); b = zeros (n, 1); map = [r, g, b]; else map = zeros (0, 3); endif endfunction %!demo %! ## Show the 'autumn' colormap as an image %! image (1:64, linspace (0, 1, 64), repmat ((1:64)', 1, 64)); %! axis ([1, 64, 0, 1], "ticy", "xy"); %! colormap (autumn (64));