octave: scripts/image/gray.m annotate

annotate scripts/image/gray.m @ 29359:7854d5752dd2

maint: merge stable to default.

author	John W. Eaton <jwe@octave.org>
date	Wed, 10 Feb 2021 10:10:40 -0500
parents	28de41192f3c 0a5b15007766
children	796f54d4ddbf

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 ##
29358 0a5b15007766 update Octave Project Developers copyright for the new year John W. Eaton <jwe@octave.org> parents: 27985 diff changeset	3 ## Copyright (C) 1994-2021 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: 23220 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: 23220 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: 22323 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: 22323 diff changeset	17 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
3a2b891d0b33 maint: Standardize Copyright formatting. Rik <rik@octave.org> parents: 22323 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: 6791 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: 23220 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 ########################################################################
559 4e826edfbc56 [project @ 1994-07-25 22:18:28 by jwe] jwe parents: 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: 20724 diff changeset	27 ## @deftypefn {} {@var{map} =} gray ()
516bb87ea72e 2015 Code Sprint: remove class of function from docstring for all m-files. Rik <rik@octave.org> parents: 20724 diff changeset	28 ## @deftypefnx {} {@var{map} =} gray (@var{n})
20158 7503499a252b doc: Update docstrings to have one sentence summary as first line. Rik <rik@octave.org> parents: 19833 diff changeset	29 ## Create gray colormap. This colormap varies from black to white with shades
7503499a252b doc: Update docstrings to have one sentence summary as first line. Rik <rik@octave.org> parents: 19833 diff changeset	30 ## of gray.
7503499a252b doc: Update docstrings to have one sentence summary as first line. Rik <rik@octave.org> parents: 19833 diff changeset	31 ##
11587 c792872f8942 all script files: untabify and strip trailing whitespace John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	32 ## The argument @var{n} must be a scalar.
11420 466ba499eff5 Update docstrings for colormap files. Rik <octave@nomad.inbox5.com> parents: 9751 diff changeset	33 ## If unspecified, the length of the current colormap, or 64, is used.
14260 1f911333ed3d doc: Update docstrings for functions in image/ directory Rik <octave@nomad.inbox5.com> parents: 14237 diff changeset	34 ## @seealso{colormap}
3373 36405da8e173 [project @ 1999-11-23 20:54:17 by jwe] jwe parents: 3202 diff changeset	35 ## @end deftypefn
1024 56520a75b5b3 [project @ 1995-01-11 20:30:04 by jwe] jwe parents: 559 diff changeset	36
24800 2dc04b6e1740 Don't create new figure when calling colormap functions (bug #53217). Rik <rik@octave.org> parents: 24534 diff changeset	37 function map = gray (n)
1024 56520a75b5b3 [project @ 1995-01-11 20:30:04 by jwe] jwe parents: 559 diff changeset	38
28789 28de41192f3c Eliminate unneeded verification of nargin, nargout in m-files. Rik <rik@octave.org> parents: 27985 diff changeset	39 if (nargin == 1)
24800 2dc04b6e1740 Don't create new figure when calling colormap functions (bug #53217). Rik <rik@octave.org> parents: 24534 diff changeset	40 if (! isscalar (n))
2dc04b6e1740 Don't create new figure when calling colormap functions (bug #53217). Rik <rik@octave.org> parents: 24534 diff changeset	41 error ("gray: N must be a scalar");
2dc04b6e1740 Don't create new figure when calling colormap functions (bug #53217). Rik <rik@octave.org> parents: 24534 diff changeset	42 endif
2dc04b6e1740 Don't create new figure when calling colormap functions (bug #53217). Rik <rik@octave.org> parents: 24534 diff changeset	43 n = double (n);
2dc04b6e1740 Don't create new figure when calling colormap functions (bug #53217). Rik <rik@octave.org> parents: 24534 diff changeset	44 else
2dc04b6e1740 Don't create new figure when calling colormap functions (bug #53217). Rik <rik@octave.org> parents: 24534 diff changeset	45 hf = get (0, "currentfigure");
2dc04b6e1740 Don't create new figure when calling colormap functions (bug #53217). Rik <rik@octave.org> parents: 24534 diff changeset	46 if (! isempty (hf))
2dc04b6e1740 Don't create new figure when calling colormap functions (bug #53217). Rik <rik@octave.org> parents: 24534 diff changeset	47 n = rows (get (hf, "colormap"));
2dc04b6e1740 Don't create new figure when calling colormap functions (bug #53217). Rik <rik@octave.org> parents: 24534 diff changeset	48 else
2dc04b6e1740 Don't create new figure when calling colormap functions (bug #53217). Rik <rik@octave.org> parents: 24534 diff changeset	49 n = 64;
2dc04b6e1740 Don't create new figure when calling colormap functions (bug #53217). Rik <rik@octave.org> parents: 24534 diff changeset	50 endif
559 4e826edfbc56 [project @ 1994-07-25 22:18:28 by jwe] jwe parents: diff changeset	51 endif
4e826edfbc56 [project @ 1994-07-25 22:18:28 by jwe] jwe parents: diff changeset	52
14641 5f1d4def40e1 improve compatibility of colormap functions Carnë Draug <carandraug+dev@gmail.com> parents: 14640 diff changeset	53 if (n == 1)
5f1d4def40e1 improve compatibility of colormap functions Carnë Draug <carandraug+dev@gmail.com> parents: 14640 diff changeset	54 map = [0, 0, 0];
5f1d4def40e1 improve compatibility of colormap functions Carnë Draug <carandraug+dev@gmail.com> parents: 14640 diff changeset	55 elseif (n > 1)
5f1d4def40e1 improve compatibility of colormap functions Carnë Draug <carandraug+dev@gmail.com> parents: 14640 diff changeset	56 gr = [0:(n-1)]' / (n - 1);
5f1d4def40e1 improve compatibility of colormap functions Carnë Draug <carandraug+dev@gmail.com> parents: 14640 diff changeset	57 map = [gr, gr, gr];
5f1d4def40e1 improve compatibility of colormap functions Carnë Draug <carandraug+dev@gmail.com> parents: 14640 diff changeset	58 else
5f1d4def40e1 improve compatibility of colormap functions Carnë Draug <carandraug+dev@gmail.com> parents: 14640 diff changeset	59 map = zeros (0, 3);
5f1d4def40e1 improve compatibility of colormap functions Carnë Draug <carandraug+dev@gmail.com> parents: 14640 diff changeset	60 endif
559 4e826edfbc56 [project @ 1994-07-25 22:18:28 by jwe] jwe parents: diff changeset	61
4e826edfbc56 [project @ 1994-07-25 22:18:28 by jwe] jwe parents: diff changeset	62 endfunction
9751 2b0cc0b6db61 Add demos for colormap functions Soren Hauberg <hauberg@gmail.com> parents: 7017 diff changeset	63
19833 9fc020886ae9 maint: Clean up m-files to follow Octave coding conventions. Rik <rik@octave.org> parents: 19697 diff changeset	64
9751 2b0cc0b6db61 Add demos for colormap functions Soren Hauberg <hauberg@gmail.com> parents: 7017 diff changeset	65 %!demo
20724 0338dc274ec5 Rewrite colormap demos with rgbplot() to show both composite and profile. Carnë Draug <carandraug@octave.org> parents: 20158 diff changeset	66 %! ## Show the 'gray' colormap profile and as an image
0338dc274ec5 Rewrite colormap demos with rgbplot() to show both composite and profile. Carnë Draug <carandraug@octave.org> parents: 20158 diff changeset	67 %! cmap = gray (16);
0338dc274ec5 Rewrite colormap demos with rgbplot() to show both composite and profile. Carnë Draug <carandraug@octave.org> parents: 20158 diff changeset	68 %! subplot (2, 1, 1);
22302 1c4cd12987f5 Use Octave syntax in graphics demos. Rik <rik@octave.org> parents: 21973 diff changeset	69 %! rgbplot (cmap, "composite");
20724 0338dc274ec5 Rewrite colormap demos with rgbplot() to show both composite and profile. Carnë Draug <carandraug@octave.org> parents: 20158 diff changeset	70 %! subplot (2, 1, 2);
22302 1c4cd12987f5 Use Octave syntax in graphics demos. Rik <rik@octave.org> parents: 21973 diff changeset	71 %! rgbplot (cmap);

Mercurial > octave

annotate scripts/image/gray.m @ 29359:7854d5752dd2