octave-nkf: scripts/image/spring.m annotate

annotate scripts/image/spring.m @ 12541:dd2c70b30f28

Add tests for ifftshift.m

author	Robert T. Short <octave@phaselockedsystems.com.com>
date	Sat, 26 Mar 2011 06:50:12 -0700
parents	c792872f8942
children	72c96de7a403

rev	line source
11523 fd0a3ac60b0e update copyright notices John W. Eaton <jwe@octave.org> parents: 11420 diff changeset	1 ## Copyright (C) 1999-2011 Kai Habel
6788 c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	2 ##
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	3 ## This file is part of Octave.
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	4 ##
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	5 ## Octave is free software; you can redistribute it and/or modify it
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	6 ## under the terms of the GNU General Public License as published by
7016 93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6791 diff changeset	7 ## the Free Software Foundation; either version 3 of the License, or (at
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6791 diff changeset	8 ## your option) any later version.
6788 c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	9 ##
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	10 ## Octave is distributed in the hope that it will be useful, but
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	11 ## WITHOUT ANY WARRANTY; without even the implied warranty of
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	13 ## General Public License for more details.
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	14 ##
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	15 ## You should have received a copy of the GNU General Public License
7016 93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6791 diff changeset	16 ## along with Octave; see the file COPYING. If not, see
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6791 diff changeset	17 ## <http://www.gnu.org/licenses/>.
6788 c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	18
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	19 ## -- texinfo --
11420 466ba499eff5 Update docstrings for colormap files. Rik <octave@nomad.inbox5.com> parents: 9751 diff changeset	20 ## @deftypefn {Function File} {@var{map} =} spring ()
466ba499eff5 Update docstrings for colormap files. Rik <octave@nomad.inbox5.com> parents: 9751 diff changeset	21 ## @deftypefnx {Function File} {@var{map} =} spring (@var{n})
466ba499eff5 Update docstrings for colormap files. Rik <octave@nomad.inbox5.com> parents: 9751 diff changeset	22 ## Create color colormap. This colormap varies from magenta to yellow.
11587 c792872f8942 all script files: untabify and strip trailing whitespace John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	23 ## The argument @var{n} must be a scalar.
11420 466ba499eff5 Update docstrings for colormap files. Rik <octave@nomad.inbox5.com> parents: 9751 diff changeset	24 ## If unspecified, the length of the current colormap, or 64, is used.
6788 c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	25 ## @seealso{colormap}
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	26 ## @end deftypefn
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	27
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	28 ## Author: Kai Habel <kai.habel@gmx.de>
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	29
11420 466ba499eff5 Update docstrings for colormap files. Rik <octave@nomad.inbox5.com> parents: 9751 diff changeset	30 function map = spring (n)
6788 c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	31
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	32 if (nargin == 0)
11420 466ba499eff5 Update docstrings for colormap files. Rik <octave@nomad.inbox5.com> parents: 9751 diff changeset	33 n = rows (colormap);
6788 c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	34 elseif (nargin == 1)
11420 466ba499eff5 Update docstrings for colormap files. Rik <octave@nomad.inbox5.com> parents: 9751 diff changeset	35 if (! isscalar (n))
6788 c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	36 error ("spring: argument must be a scalar");
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	37 endif
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	38 else
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	39 print_usage ();
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	40 endif
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	41
11420 466ba499eff5 Update docstrings for colormap files. Rik <octave@nomad.inbox5.com> parents: 9751 diff changeset	42 if (n == 1)
11587 c792872f8942 all script files: untabify and strip trailing whitespace John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	43 map = [1, 0, 1];
11420 466ba499eff5 Update docstrings for colormap files. Rik <octave@nomad.inbox5.com> parents: 9751 diff changeset	44 elseif (n > 1)
466ba499eff5 Update docstrings for colormap files. Rik <octave@nomad.inbox5.com> parents: 9751 diff changeset	45 r = ones (n, 1);
466ba499eff5 Update docstrings for colormap files. Rik <octave@nomad.inbox5.com> parents: 9751 diff changeset	46 g = (0:n - 1)' ./ (n - 1);
6788 c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	47 b = 1 - g;
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	48 map = [r, g, b];
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	49 else
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	50 map = [];
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	51 endif
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	52
c81a0f3f5a82 [project @ 2007-07-23 22:05:29 by dbateman] dbateman parents: diff changeset	53 endfunction
9751 2b0cc0b6db61 Add demos for colormap functions Soren Hauberg <hauberg@gmail.com> parents: 9245 diff changeset	54
2b0cc0b6db61 Add demos for colormap functions Soren Hauberg <hauberg@gmail.com> parents: 9245 diff changeset	55 %!demo
2b0cc0b6db61 Add demos for colormap functions Soren Hauberg <hauberg@gmail.com> parents: 9245 diff changeset	56 %! ## Show the 'spring' colormap as an image
2b0cc0b6db61 Add demos for colormap functions Soren Hauberg <hauberg@gmail.com> parents: 9245 diff changeset	57 %! image (1:64, linspace (0, 1, 64), repmat (1:64, 64, 1)')
2b0cc0b6db61 Add demos for colormap functions Soren Hauberg <hauberg@gmail.com> parents: 9245 diff changeset	58 %! axis ([1, 64, 0, 1], "ticy", "xy")
11420 466ba499eff5 Update docstrings for colormap files. Rik <octave@nomad.inbox5.com> parents: 9751 diff changeset	59 %! colormap (spring (64))
9751 2b0cc0b6db61 Add demos for colormap functions Soren Hauberg <hauberg@gmail.com> parents: 9245 diff changeset	60

Mercurial > hg > octave-nkf

annotate scripts/image/spring.m @ 12541:dd2c70b30f28