octave: scripts/image/imagesc.m annotate

annotate scripts/image/imagesc.m @ 33617:ec2635a02328 bytecode-interpreter tip

maint: Merge default to bytecode-interpreter.

author	Markus Mützel <markus.muetzel@gmx.de>
date	Tue, 21 May 2024 18:29:03 +0200
parents	92b8822976fe
children

rev	line source
27923 bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	1 ########################################################################
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	2 ##
32632 2e484f9f1f18 maint: update Octave Project Developers copyright for the new year John W. Eaton <jwe@octave.org> parents: 31706 diff changeset	3 ## Copyright (C) 1994-2024 The Octave Project Developers
27918 b442ec6dda5c use centralized file for copyright info for individual contributors John W. Eaton <jwe@octave.org> parents: 26376 diff changeset	4 ##
27923 bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	5 ## See the file COPYRIGHT.md in the top-level directory of this
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	6 ## distribution or <https://octave.org/copyright/>.
2313 5ca126254d15 [project @ 1996-07-11 21:25:22 by jwe] jwe parents: 2312 diff changeset	7 ##
5ca126254d15 [project @ 1996-07-11 21:25:22 by jwe] jwe parents: 2312 diff changeset	8 ## This file is part of Octave.
5ca126254d15 [project @ 1996-07-11 21:25:22 by jwe] jwe parents: 2312 diff changeset	9 ##
24534 194eb4bd202b maint: Update punctuation for GPL v3 license text. Rik <rik@octave.org> parents: 24057 diff changeset	10 ## Octave is free software: you can redistribute it and/or modify it
2313 5ca126254d15 [project @ 1996-07-11 21:25:22 by jwe] jwe parents: 2312 diff changeset	11 ## under the terms of the GNU General Public License as published by
24534 194eb4bd202b maint: Update punctuation for GPL v3 license text. Rik <rik@octave.org> parents: 24057 diff changeset	12 ## the Free Software Foundation, either version 3 of the License, or
22755 3a2b891d0b33 maint: Standardize Copyright formatting. Rik <rik@octave.org> parents: 22369 diff changeset	13 ## (at your option) any later version.
2313 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 ## 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	16 ## WITHOUT ANY WARRANTY; without even the implied warranty of
22755 3a2b891d0b33 maint: Standardize Copyright formatting. Rik <rik@octave.org> parents: 22369 diff changeset	17 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
3a2b891d0b33 maint: Standardize Copyright formatting. Rik <rik@octave.org> parents: 22369 diff changeset	18 ## GNU General Public License for more details.
2313 5ca126254d15 [project @ 1996-07-11 21:25:22 by jwe] jwe parents: 2312 diff changeset	19 ##
5ca126254d15 [project @ 1996-07-11 21:25:22 by jwe] jwe parents: 2312 diff changeset	20 ## 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	21 ## along with Octave; see the file COPYING. If not, see
24534 194eb4bd202b maint: Update punctuation for GPL v3 license text. Rik <rik@octave.org> parents: 24057 diff changeset	22 ## <https://www.gnu.org/licenses/>.
27923 bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	23 ##
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	24 ########################################################################
1024 56520a75b5b3 [project @ 1995-01-11 20:30:04 by jwe] jwe parents: 904 diff changeset	25
3381 69b167451491 [project @ 1999-12-15 20:48:10 by jwe] jwe parents: 3373 diff changeset	26 ## -- texinfo --
20852 516bb87ea72e 2015 Code Sprint: remove class of function from docstring for all m-files. Rik <rik@octave.org> parents: 20158 diff changeset	27 ## @deftypefn {} {} imagesc (@var{img})
516bb87ea72e 2015 Code Sprint: remove class of function from docstring for all m-files. Rik <rik@octave.org> parents: 20158 diff changeset	28 ## @deftypefnx {} {} imagesc (@var{x}, @var{y}, @var{img})
516bb87ea72e 2015 Code Sprint: remove class of function from docstring for all m-files. Rik <rik@octave.org> parents: 20158 diff changeset	29 ## @deftypefnx {} {} imagesc (@dots{}, @var{climits})
516bb87ea72e 2015 Code Sprint: remove class of function from docstring for all m-files. Rik <rik@octave.org> parents: 20158 diff changeset	30 ## @deftypefnx {} {} imagesc (@dots{}, "@var{prop}", @var{val}, @dots{})
516bb87ea72e 2015 Code Sprint: remove class of function from docstring for all m-files. Rik <rik@octave.org> parents: 20158 diff changeset	31 ## @deftypefnx {} {} imagesc ("@var{prop1}", @var{val1}, @dots{})
516bb87ea72e 2015 Code Sprint: remove class of function from docstring for all m-files. Rik <rik@octave.org> parents: 20158 diff changeset	32 ## @deftypefnx {} {} imagesc (@var{hax}, @dots{})
516bb87ea72e 2015 Code Sprint: remove class of function from docstring for all m-files. Rik <rik@octave.org> parents: 20158 diff changeset	33 ## @deftypefnx {} {@var{h} =} imagesc (@dots{})
20158 7503499a252b doc: Update docstrings to have one sentence summary as first line. Rik <rik@octave.org> parents: 19697 diff changeset	34 ## Display a scaled version of the matrix @var{img} as a color image.
7503499a252b doc: Update docstrings to have one sentence summary as first line. Rik <rik@octave.org> parents: 19697 diff changeset	35 ##
7503499a252b doc: Update docstrings to have one sentence summary as first line. Rik <rik@octave.org> parents: 19697 diff changeset	36 ## The colormap is scaled so that the entries of the matrix occupy the entire
7503499a252b doc: Update docstrings to have one sentence summary as first line. Rik <rik@octave.org> parents: 19697 diff changeset	37 ## colormap. If @code{@var{climits} = [@var{lo}, @var{hi}]} is given, then
7503499a252b doc: Update docstrings to have one sentence summary as first line. Rik <rik@octave.org> parents: 19697 diff changeset	38 ## that 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	39 ##
25856 9578af67a0d4 Document that image x/ydata indicate the centers of corner pixels (bug #54610). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 25054 diff changeset	40 ## @var{x} and @var{y} are optional 2-element vectors, @w{@code{[min, max]}},
9578af67a0d4 Document that image x/ydata indicate the centers of corner pixels (bug #54610). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 25054 diff changeset	41 ## which specify the coordinates of the centers of the corner pixels.
9578af67a0d4 Document that image x/ydata indicate the centers of corner pixels (bug #54610). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 25054 diff changeset	42 ## If a range is specified as @w{@code{[max, min]}} then the image will be
9578af67a0d4 Document that image x/ydata indicate the centers of corner pixels (bug #54610). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 25054 diff changeset	43 ## reversed along that axis. For convenience, @var{x} and @var{y} may be
9578af67a0d4 Document that image x/ydata indicate the centers of corner pixels (bug #54610). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 25054 diff changeset	44 ## specified as N-element vectors matching the length of the data in @var{img}.
25980 221c039aa415 Fix rendering of images with permuted x/ydata (bug #49756). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 25856 diff changeset	45 ## However, only the first and last elements will be used to determine
221c039aa415 Fix rendering of images with permuted x/ydata (bug #49756). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 25856 diff changeset	46 ## the image limits.
7189 e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman] dbateman parents: 7017 diff changeset	47 ##
14001 5f0bb45e615c doc: Update documentation for functions returning a graphics handle h (Bug #34761) Rik <octave@nomad.inbox5.com> parents: 11589 diff changeset	48 ## 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	49 ##
dd8db3f1c1da doc: Add information about High-Level/Low-Level calling forms for image, imagesc. Rik <rik@octave.org> parents: 17281 diff changeset	50 ## 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	51 ## 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	52 ## 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	53 ## 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	54 ## the Low-Level form is used which creates a new instance of an image object
28734 10060fb23116 doc: Small fixes to cset aabebd95488b. Rik <rik@octave.org> parents: 28733 diff changeset	55 ## and inserts it in the current axes. The full list of properties is
28733 9342688e86b4 Updated property references for text and graphics functions (bug #50247) Nicholas R. Jankowski <jankowskin@asme.org> parents: 27985 diff changeset	56 ## documented at @ref{Image Properties}.
17689 dd8db3f1c1da doc: Add information about High-Level/Low-Level calling forms for image, imagesc. Rik <rik@octave.org> parents: 17281 diff changeset	57 ##
33129 92b8822976fe clim.m: New function identical to caxis, but more clearly named. Rik <rik@octave.org> parents: 32632 diff changeset	58 ## @seealso{image, imshow, clim}
3373 36405da8e173 [project @ 1999-11-23 20:54:17 by jwe] jwe parents: 3225 diff changeset	59 ## @end deftypefn
559 4e826edfbc56 [project @ 1994-07-25 22:18:28 by jwe] jwe parents: diff changeset	60
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	61 function h = imagesc (varargin)
7189 e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman] dbateman parents: 7017 diff changeset	62
17692 38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	63 [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	64
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	65 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	66
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	67 do_new = true;
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	68 if (nargin == 0)
7189 e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman] dbateman parents: 7017 diff changeset	69 print_usage ();
17692 38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	70 elseif (chararg == 1)
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	71 ## Low-Level syntax
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	72 do_new = false;
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	73 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	74 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	75 img = varargin{1};
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	76 x = y = climits = [];
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	77 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	78 img = varargin{1};
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	79 climits = varargin{2};
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	80 x = y = [];
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	81 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	82 x = varargin{1};
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	83 y = varargin{2};
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	84 img = varargin{3};
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	85 climits = [];
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	86 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	87 x = varargin{1};
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	88 y = varargin{2};
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	89 img = varargin{3};
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	90 climits = varargin{4};
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	91 endif
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	92
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	93 oldfig = [];
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	94 if (! isempty (hax))
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	95 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	96 endif
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	97 unwind_protect
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	98 if (do_new)
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	99 hax = newplot (hax);
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	100 elseif (isempty (hax))
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	101 hax = gca ();
7189 e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman] dbateman parents: 7017 diff changeset	102 endif
17692 38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	103
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	104 if (do_new)
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	105 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	106 else
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	107 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	108 endif
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	109
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	110 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	111 ## 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	112 if (numel (climits) == 2 && climits(1) <= climits(2))
24056 ae35d50d9756 Ensure numeric values are passed for the axes "clim" property (bug #52053). Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 23219 diff changeset	113 set (hax, "clim", double (climits));
17692 38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	114 elseif (! isempty (climits))
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	115 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	116 endif
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	117 endif
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	118 unwind_protect_cleanup
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	119 if (! isempty (oldfig))
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	120 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	121 endif
38cf56b77274 Overhaul image, imagesc to use newplot and support low-level invocation form. Rik <rik@octave.org> parents: 17689 diff changeset	122 end_unwind_protect
7189 e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman] dbateman parents: 7017 diff changeset	123
e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman] dbateman parents: 7017 diff changeset	124 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	125 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	126 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	127
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 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	129
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
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 %!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	132 %! 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	133 %! 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	134 %! 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	135 %! 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	136 %! 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	137 %! 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	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 %! 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	140 %! 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	141 %! 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	142 %! 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	143 %! 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	144 %! 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	145 %! 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	146 %! 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	147 %! 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	148 %! 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	149 %! title ("imagesc (-x, -y, img)");
559 4e826edfbc56 [project @ 1994-07-25 22:18:28 by jwe] jwe parents: diff changeset	150
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	151 %!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	152 %! 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	153 %! 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	154 %! 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	155 %! 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	156 %! 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	157 %! 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	158 %! 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	159 %! 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	160 %! hold off;
22312 533c3c4059a3 Add titles to more of the graphic demos. Rik <rik@octave.org> parents: 22069 diff changeset	161 %! title ("two consecutive images w/hold()");
6368 ec2a523713b5 [project @ 2007-02-28 22:07:24 by jwe] jwe parents: 6046 diff changeset	162
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	163 %!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	164 %! 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	165 %! 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	166 %! 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	167 %! 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	168 %! imagesc (g, g, sin (h));
22069 9121d6584f6a Overhaul graphics implementation of hold() (bug #43559). Rik <rik@octave.org> parents: 20852 diff changeset	169 %! hold on;
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	170 %! 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	171 %! 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	172 %! 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	173 %! hold off;
22312 533c3c4059a3 Add titles to more of the graphic demos. Rik <rik@octave.org> parents: 22069 diff changeset	174 %! title ("image, line, image w/hold()");
559 4e826edfbc56 [project @ 1994-07-25 22:18:28 by jwe] jwe parents: diff changeset	175
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	176 %!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	177 %! 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	178 %! 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	179 %! 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	180 %! 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	181 %! plot (g, 10.5 * ones (size (g)));
22069 9121d6584f6a Overhaul graphics implementation of hold() (bug #43559). Rik <rik@octave.org> parents: 20852 diff changeset	182 %! hold on;
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	183 %! 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	184 %! 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	185 %! 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	186 %! 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	187 %! 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	188 %! hold off;
22312 533c3c4059a3 Add titles to more of the graphic demos. Rik <rik@octave.org> parents: 22069 diff changeset	189 %! title ("line, image, line, image, line w/hold()");
7189 e8d953d03f6a [project @ 2007-11-26 20:42:09 by dbateman] dbateman parents: 7017 diff changeset	190
22369 17c9cc85842e Fix display of scaled images in OpenGL toolkits (bug #48879). Rik <rik@octave.org> parents: 22323 diff changeset	191 %!demo # bug #48879
17c9cc85842e Fix display of scaled images in OpenGL toolkits (bug #48879). Rik <rik@octave.org> parents: 22323 diff changeset	192 %! clf;
17c9cc85842e Fix display of scaled images in OpenGL toolkits (bug #48879). Rik <rik@octave.org> parents: 22323 diff changeset	193 %! img = reshape (1:100, 10, 10);
17c9cc85842e Fix display of scaled images in OpenGL toolkits (bug #48879). Rik <rik@octave.org> parents: 22323 diff changeset	194 %! imagesc (img);
17c9cc85842e Fix display of scaled images in OpenGL toolkits (bug #48879). Rik <rik@octave.org> parents: 22323 diff changeset	195 %! colormap (prism (10));
17c9cc85842e Fix display of scaled images in OpenGL toolkits (bug #48879). Rik <rik@octave.org> parents: 22323 diff changeset	196 %! title ("10 vertical color bars");

Mercurial > octave

annotate scripts/image/imagesc.m @ 33617:ec2635a02328 bytecode-interpreter tip