octave: scripts/image/imagesc.m annotate

annotate scripts/image/imagesc.m @ 17692:38cf56b77274

Overhaul image, imagesc to use newplot and support low-level invocation form. * scripts/image/image.m: New variable do_new indicates high-level calling form. For high-level invocation, call newplot before __img__. Correct linearity check if vectors are reversed (high-to-low values). Only apply image properties to axes if doing a high-level invocation. * scripts/image/imagesc.m: New variable do_new indicates high-level calling form. Delete subfunction __imagesc__ and incorporate minimal amount of code into imagesc. Only apply climits for high-level invocation.

author	Rik <rik@octave.org>
date	Fri, 18 Oct 2013 16:27:44 -0700
parents	dd8db3f1c1da
children	d63878346099

rev	line source
14138 72c96de7a403 maint: update copyright notices for 2012 John W. Eaton <jwe@octave.org> parents: 14001 diff changeset	1 ## Copyright (C) 1994-2012 John W. Eaton
2313 5ca126254d15 [project @ 1996-07-11 21:25:22 by jwe] jwe parents: 2312 diff changeset	2 ##
5ca126254d15 [project @ 1996-07-11 21:25:22 by jwe] jwe parents: 2312 diff changeset	3 ## This file is part of Octave.
5ca126254d15 [project @ 1996-07-11 21:25:22 by jwe] jwe parents: 2312 diff changeset	4 ##
5ca126254d15 [project @ 1996-07-11 21:25:22 by jwe] jwe parents: 2312 diff changeset	5 ## Octave is free software; you can redistribute it and/or modify it
5ca126254d15 [project @ 1996-07-11 21:25:22 by jwe] jwe parents: 2312 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: 6368 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: 6368 diff changeset	8 ## your option) any later version.
2313 5ca126254d15 [project @ 1996-07-11 21:25:22 by jwe] jwe parents: 2312 diff changeset	9 ##
5ca126254d15 [project @ 1996-07-11 21:25:22 by jwe] jwe parents: 2312 diff changeset	10 ## Octave is distributed in the hope that it will be useful, but
5ca126254d15 [project @ 1996-07-11 21:25:22 by jwe] jwe parents: 2312 diff changeset	11 ## WITHOUT ANY WARRANTY; without even the implied warranty of
5ca126254d15 [project @ 1996-07-11 21:25:22 by jwe] jwe parents: 2312 diff changeset	12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
5ca126254d15 [project @ 1996-07-11 21:25:22 by jwe] jwe parents: 2312 diff changeset	13 ## General Public License for more details.
5ca126254d15 [project @ 1996-07-11 21:25:22 by jwe] jwe parents: 2312 diff changeset	14 ##
5ca126254d15 [project @ 1996-07-11 21:25:22 by jwe] jwe parents: 2312 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: 6368 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: 6368 diff changeset	17 ## <http://www.gnu.org/licenses/>.
1024 56520a75b5b3 [project @ 1995-01-11 20:30:04 by jwe] jwe parents: 904 diff changeset	18
3381 69b167451491 [project @ 1999-12-15 20:48:10 by jwe] jwe parents: 3373 diff changeset	19 ## -- texinfo --
15683 806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	20 ## @deftypefn {Function File} {} imagesc (@var{img})
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	21 ## @deftypefnx {Function File} {} imagesc (@var{x}, @var{y}, @var{img})
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	22 ## @deftypefnx {Function File} {} imagesc (@dots{}, @var{climits})
17689 dd8db3f1c1da doc: Add information about High-Level/Low-Level calling forms for image, imagesc. Rik <rik@octave.org> parents: 17281 diff changeset	23 ## @deftypefnx {Function File} {} imagesc (@dots{}, "@var{prop}", @var{val}, @dots{})
dd8db3f1c1da doc: Add information about High-Level/Low-Level calling forms for image, imagesc. Rik <rik@octave.org> parents: 17281 diff changeset	24 ## @deftypefnx {Function File} {} imagesc ("@var{prop1}", @var{val1}, @dots{})
17125 b5d6314314fc Change various plot functions to take advantage of new isaxes() function. Rik <rik@octave.org> parents: 15683 diff changeset	25 ## @deftypefnx {Function File} {} imagesc (@var{hax}, @dots{})
7650 eb7bdde776f2 Texinfo fixes John W. Eaton <jwe@octave.org> parents: 7471 diff changeset	26 ## @deftypefnx {Function File} {@var{h} =} imagesc (@dots{})
15683 806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	27 ## Display a scaled version of the matrix @var{img} as a color image. The
7189 e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman] dbateman parents: 7017 diff changeset	28 ## colormap is scaled so that the entries of the matrix occupy the entire
15683 806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	29 ## colormap. If @code{@var{climits} = [@var{lo}, @var{hi}]} is given, then that
17281 bc924baa2c4e doc: Add new @qcode macro for code samples which are quoted. Rik <rik@octave.org> parents: 17125 diff changeset	30 ## range is set to the @qcode{"clim"} of the current axes.
3651 c2305b99fbd7 [project @ 2000-03-31 07:12:29 by jwe] jwe parents: 3457 diff changeset	31 ##
c2305b99fbd7 [project @ 2000-03-31 07:12:29 by jwe] jwe parents: 3457 diff changeset	32 ## The axis values corresponding to the matrix elements are specified in
4403 f52b3f1a9399 [project @ 2003-05-01 19:28:11 by jwe] jwe parents: 3882 diff changeset	33 ## @var{x} and @var{y}, either as pairs giving the minimum and maximum
f52b3f1a9399 [project @ 2003-05-01 19:28:11 by jwe] jwe parents: 3882 diff changeset	34 ## values for the respective axes, or as values for each row and column
15683 806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	35 ## of the matrix @var{img}.
7189 e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman] dbateman parents: 7017 diff changeset	36 ##
14001 5f0bb45e615c doc: Update documentation for functions returning a graphics handle h (Bug #34761) Rik <octave@nomad.inbox5.com> parents: 11589 diff changeset	37 ## The optional return value @var{h} is a graphics handle to the image.
17689 dd8db3f1c1da doc: Add information about High-Level/Low-Level calling forms for image, imagesc. Rik <rik@octave.org> parents: 17281 diff changeset	38 ##
dd8db3f1c1da doc: Add information about High-Level/Low-Level calling forms for image, imagesc. Rik <rik@octave.org> parents: 17281 diff changeset	39 ## Calling Forms: The @code{imagesc} function can be called in two forms:
dd8db3f1c1da doc: Add information about High-Level/Low-Level calling forms for image, imagesc. Rik <rik@octave.org> parents: 17281 diff changeset	40 ## High-Level and Low-Level. When invoked with normal options, the High-Level
dd8db3f1c1da doc: Add information about High-Level/Low-Level calling forms for image, imagesc. Rik <rik@octave.org> parents: 17281 diff changeset	41 ## form is used which first calls @code{newplot} to prepare the graphic figure
dd8db3f1c1da doc: Add information about High-Level/Low-Level calling forms for image, imagesc. Rik <rik@octave.org> parents: 17281 diff changeset	42 ## and axes. When the only inputs to @code{image} are property/value pairs
dd8db3f1c1da doc: Add information about High-Level/Low-Level calling forms for image, imagesc. Rik <rik@octave.org> parents: 17281 diff changeset	43 ## the Low-Level form is used which creates a new instance of an image object
dd8db3f1c1da doc: Add information about High-Level/Low-Level calling forms for image, imagesc. Rik <rik@octave.org> parents: 17281 diff changeset	44 ## and inserts it in the current axes.
dd8db3f1c1da doc: Add information about High-Level/Low-Level calling forms for image, imagesc. Rik <rik@octave.org> parents: 17281 diff changeset	45 ##
8286 6f2d95255911 fix @seealso references to point to existing anchors Thorsten Meyer <thorsten.meyier@gmx.de> parents: 7650 diff changeset	46 ## @seealso{image, imshow, caxis}
3373 36405da8e173 [project @ 1999-11-23 20:54:17 by jwe] jwe parents: 3225 diff changeset	47 ## @end deftypefn
559 4e826edfbc56 [project @ 1994-07-25 22:18:28 by jwe] jwe parents: diff changeset	48
3202 44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe] jwe parents: 2847 diff changeset	49 ## Author: Tony Richardson <arichard@stark.cc.oh.us>
2312 204cc7db6f4a [project @ 1996-07-11 21:20:36 by jwe] jwe parents: 2311 diff changeset	50 ## Created: July 1994
204cc7db6f4a [project @ 1996-07-11 21:20:36 by jwe] jwe parents: 2311 diff changeset	51 ## Adapted-By: jwe
904 3470f1e25a79 [project @ 1994-11-09 21:22:15 by jwe] jwe parents: 559 diff changeset	52
15683 806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	53 function h = imagesc (varargin)
7189 e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman] dbateman parents: 7017 diff changeset	54
17692 38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	55 [hax, varargin, nargin] = __plt_get_axis_arg__ ("imagesc", varargin{:});
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	56
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	57 chararg = find (cellfun ("isclass", varargin, "char"), 1, "first");
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	58
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	59 do_new = true;
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	60 if (nargin == 0)
7189 e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman] dbateman parents: 7017 diff changeset	61 print_usage ();
17692 38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	62 elseif (chararg == 1)
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	63 ## Low-Level syntax
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	64 do_new = false;
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	65 img = x = y = climits = [];
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	66 elseif (nargin == 1 \|\| chararg == 2)
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	67 img = varargin{1};
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	68 x = y = climits = [];
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	69 elseif (nargin == 2 \|\| chararg == 3)
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	70 img = varargin{1};
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	71 climits = varargin{2};
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	72 x = y = [];
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	73 elseif (nargin == 3 \|\| chararg == 4)
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	74 x = varargin{1};
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	75 y = varargin{2};
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	76 img = varargin{3};
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	77 climits = [];
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	78 elseif (nargin == 4 \|\| chararg == 5)
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	79 x = varargin{1};
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	80 y = varargin{2};
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	81 img = varargin{3};
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	82 climits = varargin{4};
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	83 endif
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	84
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	85 oldfig = [];
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	86 if (! isempty (hax))
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	87 oldfig = get (0, "currentfigure");
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	88 endif
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	89 unwind_protect
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	90 if (do_new)
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	91 hax = newplot (hax);
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	92 elseif (isempty (hax))
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	93 hax = gca ();
7189 e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman] dbateman parents: 7017 diff changeset	94 endif
17692 38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	95
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	96 if (do_new)
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	97 htmp = image (x, y, img, "cdatamapping", "scaled", varargin{chararg:end});
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	98 else
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	99 htmp = image ("cdatamapping", "scaled", varargin{:});
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	100 endif
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	101
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	102 if (do_new && ! ishold (hax))
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	103 ## use given climits or guess them from the matrix
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	104 if (numel (climits) == 2 && climits(1) <= climits(2))
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	105 set (hax, "clim", climits);
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	106 elseif (! isempty (climits))
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	107 error ("imagesc: CLIMITS must be in form [lo, hi]");
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	108 endif
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	109 endif
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	110 unwind_protect_cleanup
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	111 if (! isempty (oldfig))
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	112 set (0, "currentfigure", oldfig);
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	113 endif
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	114 end_unwind_protect
7189 e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman] dbateman parents: 7017 diff changeset	115
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman] dbateman parents: 7017 diff changeset	116 if (nargout > 0)
15683 806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	117 h = htmp;
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	118 endif
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	119
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	120 endfunction
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	121
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	122
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	123 %!demo
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	124 %! clf;
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	125 %! colormap ("default");
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	126 %! img = 1 ./ hilb (11);
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	127 %! x = y = -5:5;
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	128 %! subplot (2,2,1);
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	129 %! h = imagesc (x, y, img);
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	130 %! ylabel ("limits = [-5.5, 5.5]");
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	131 %! title ("imagesc (x, y, img)");
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	132 %! subplot (2,2,2);
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	133 %! h = imagesc (-x, y, img);
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	134 %! title ("imagesc (-x, y, img)");
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	135 %! subplot (2,2,3);
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	136 %! h = imagesc (x, -y, img);
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	137 %! title ("imagesc (x, -y, img)");
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	138 %! ylabel ("limits = [-5.5, 5.5]");
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	139 %! subplot (2,2,4);
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	140 %! h = imagesc (-x, -y, img);
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	141 %! title ("imagesc (-x, -y, img)");
559 4e826edfbc56 [project @ 1994-07-25 22:18:28 by jwe] jwe parents: diff changeset	142
15683 806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	143 %!demo
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	144 %! clf;
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	145 %! colormap ("default");
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	146 %! g = 0.1:0.1:10;
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	147 %! h = g'*g;
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	148 %! imagesc (g, g, sin (h));
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	149 %! hold on;
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	150 %! imagesc (g, g+12, cos (h/2));
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	151 %! axis ([0 10 0 22]);
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	152 %! hold off;
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	153 %! title ("two consecutive images");
6368 ec2a523713b5 [project @ 2007-02-28 22:07:24 by jwe] jwe parents: 6046 diff changeset	154
15683 806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	155 %!demo
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	156 %! clf;
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	157 %! colormap ("default");
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	158 %! g = 0.1:0.1:10;
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	159 %! h = g'*g;
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	160 %! imagesc (g, g, sin (h));
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	161 %! hold all;
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	162 %! plot (g, 11.0 * ones (size (g)));
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	163 %! imagesc (g, g+12, cos (h/2));
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	164 %! axis ([0 10 0 22]);
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	165 %! hold off;
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	166 %! title ("image, line, image");
559 4e826edfbc56 [project @ 1994-07-25 22:18:28 by jwe] jwe parents: diff changeset	167
15683 806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	168 %!demo
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	169 %! clf;
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	170 %! colormap ("default");
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	171 %! g = 0.1:0.1:10;
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	172 %! h = g'*g;
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	173 %! plot (g, 10.5 * ones (size (g)));
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	174 %! hold all;
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	175 %! imagesc (g, g, sin (h));
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	176 %! plot (g, 11.0 * ones (size (g)));
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	177 %! imagesc (g, g+12, cos (h/2));
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	178 %! plot (g, 11.5 * ones (size (g)));
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	179 %! axis ([0 10 0 22]);
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	180 %! hold off;
806ea52af230 Overhaul m-files in image directory to provide better support for images stored as integers. Rik <rik@octave.org> parents: 14359 diff changeset	181 %! title ("line, image, line, image, line");
7189 e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman] dbateman parents: 7017 diff changeset	182

Mercurial > octave

annotate scripts/image/imagesc.m @ 17692:38cf56b77274