Mercurial > hg > octave-nkf
annotate scripts/plot/view.m @ 11344:cac58372d547
Make view more compatible
| author | Kai Habel <kai.habel@gmx.de> |
|---|---|
| date | Sun, 12 Dec 2010 16:44:29 +0100 |
| parents | be55736a0783 |
| children | 488f07b65b1d |
| rev | line source |
|---|---|
| 8920 | 1 ## Copyright (C) 2007, 2008 John W. Eaton |
| 6257 | 2 ## |
| 3 ## This file is part of Octave. | |
| 4 ## | |
| 5 ## Octave is free software; you can redistribute it and/or modify it | |
| 6 ## under the terms of the GNU General Public License as published by | |
| 7016 | 7 ## the Free Software Foundation; either version 3 of the License, or (at |
| 8 ## your option) any later version. | |
| 6257 | 9 ## |
| 10 ## Octave is distributed in the hope that it will be useful, but | |
| 11 ## WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 ## General Public License for more details. | |
| 14 ## | |
| 15 ## You should have received a copy of the GNU General Public License | |
| 7016 | 16 ## along with Octave; see the file COPYING. If not, see |
| 17 ## <http://www.gnu.org/licenses/>. | |
| 6257 | 18 |
| 19 ## -*- texinfo -*- | |
|
10793
be55736a0783
Grammarcheck the documentation from m-files.
Rik <octave@nomad.inbox5.com>
parents:
10549
diff
changeset
|
20 ## @deftypefn {Function File} {} view (@var{azimuth}, @var{elevation}) |
| 11344 | 21 ## @deftypefnx {Function File} {} view ([@var{azimuth}, @var{elevation}]) |
| 22 ## @deftypefnx {Function File} {} view ([@var{x}, @var{y}, @var{z}]) | |
| 6257 | 23 ## @deftypefnx {Function File} {} view (@var{dims}) |
| 11344 | 24 ## @deftypefnx {Function File} {} view (@var{ax}, @dots{}) |
| 6257 | 25 ## @deftypefnx {Function File} {[@var{azimuth}, @var{elevation}] =} view () |
| 11344 | 26 ## Set or get the viewpoint for the current axes. The parameters |
| 27 ## @var{azimuth} and @var{elevation} can be given as two arguments or as | |
| 28 ## 2-element vector. | |
| 29 ## The viewpoint can also be given with cartesian coordinates @var{x}, | |
| 30 ## @var{y}, and @var{z}. | |
| 31 ## The call @code{view (2)} sets the viewpoint to @var{azimuth} = 0 | |
| 32 ## and @var{elevation} = 90, which is default for 2d graphs. | |
| 33 ## The call @code{view (3)} sets the viewpoint to @var{azimuth} = -37.5 | |
| 34 ## and @var{elevation} = 30, which is default for 3d graphs. | |
| 35 ## If @var{ax} is given, the viewpoint is set for this axes, otherwise | |
| 36 ## it is set for the current axes. | |
| 6257 | 37 ## @end deftypefn |
| 38 | |
| 39 ## Author: jwe | |
| 40 | |
| 11344 | 41 function [azimuth, elevation] = view (varargin) |
| 6257 | 42 |
| 11344 | 43 if (nargin < 3) |
| 44 | |
|
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a626db2e8a1c
view: get values from current axes if nargin == 0
John W. Eaton <jwe@octave.org>
parents:
7016
diff
changeset
|
45 if (nargin == 0) |
|
a626db2e8a1c
view: get values from current axes if nargin == 0
John W. Eaton <jwe@octave.org>
parents:
7016
diff
changeset
|
46 tmp = get (gca (), "view"); |
|
a626db2e8a1c
view: get values from current axes if nargin == 0
John W. Eaton <jwe@octave.org>
parents:
7016
diff
changeset
|
47 az = tmp(1); |
|
a626db2e8a1c
view: get values from current axes if nargin == 0
John W. Eaton <jwe@octave.org>
parents:
7016
diff
changeset
|
48 el = tmp(2); |
| 11344 | 49 else |
| 50 ax = varargin{1}; | |
| 51 if (ishandle (ax) && strcmp (get (ax, "type"), "axes")) | |
| 52 args = varargin{2:end}; | |
| 53 else | |
| 54 ax = gca; | |
| 55 args = varargin; | |
| 56 endif | |
| 57 endif | |
| 58 | |
| 59 if (nargin == 1) | |
| 60 x = args{1}; | |
| 61 if (length (x) == 2) | |
| 62 az = x(1); | |
| 63 el = x(2); | |
| 64 elseif (length (x) == 3) | |
| 65 [az, el] = cart2sph (x(1), x(2), x(3)); | |
| 66 az *= 180/pi; | |
| 67 az += 90; | |
| 68 el *= 180/pi; | |
| 69 elseif (x == 2) | |
| 10549 | 70 az = 0; |
| 71 el = 90; | |
| 6257 | 72 elseif (x == 3) |
| 10549 | 73 az = -37.5; |
| 74 el = 30; | |
| 6257 | 75 else |
| 11344 | 76 print_usage (); |
| 6257 | 77 endif |
| 78 elseif (nargin == 2) | |
| 11344 | 79 az = args{1}; |
| 80 el = args{2}; | |
| 6257 | 81 endif |
| 82 | |
| 83 if (nargin > 0) | |
| 11344 | 84 set (ax, "view", [az, el]); |
| 6257 | 85 endif |
| 86 | |
| 87 if (nargout == 1) | |
| 88 error ("view: T = view () not implemented"); | |
| 89 endif | |
| 90 | |
| 91 if (nargout == 2) | |
| 92 azimuth = az; | |
| 93 elevation = el; | |
| 94 endif | |
| 95 else | |
| 96 print_usage (); | |
| 97 endif | |
| 98 | |
| 99 endfunction |