Mercurial > hg > octave-lyh
annotate scripts/plot/comet3.m @ 17130:26589abbc78d
Don't pass axis handle unnecessarily from high level to low level plot functions.
* scripts/plot/comet.m, scripts/plot/comet3.m, scripts/plot/compass.m,
scripts/plot/contour.m, scripts/plot/contourf.m, scripts/plot/cylinder.m,
scripts/plot/ellipsoid.m, scripts/plot/errorbar.m, scripts/plot/feather.m,
scripts/plot/mesh.m, scripts/plot/meshc.m, scripts/plot/meshz.m,
scripts/plot/pcolor.m, scripts/plot/plot3.m, scripts/plot/rectangle.m,
scripts/plot/rose.m, scripts/plot/scatter3.m, scripts/plot/semilogxerr.m,
scripts/plot/semilogy.m, scripts/plot/semilogyerr.m, scripts/plot/slice.m,
scripts/plot/sphere.m, scripts/plot/stairs.m, scripts/plot/surf.m,
scripts/plot/surfc.m, scripts/plot/surfnorm.m, scripts/plot/trimesh.m,
scripts/plot/trisurf.m: Don't pass hax to lower level functions after
newplot() has been called.
| author | Rik <rik@octave.org> |
|---|---|
| date | Wed, 31 Jul 2013 18:42:17 -0700 |
| parents | eaab03308c0b |
| children | 1c2f14a7935d |
| rev | line source |
|---|---|
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1 ## Copyright (C) 2010-2012 Ben Abbott and John W. Eaton |
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2 ## |
| 11382 | 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 | |
| 7 ## the Free Software Foundation; either version 3 of the License, or (at | |
| 8 ## your option) any later version. | |
| 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 | |
| 16 ## along with Octave; see the file COPYING. If not, see | |
| 17 ## <http://www.gnu.org/licenses/>. | |
| 18 | |
| 19 ## -*- texinfo -*- | |
| 20 ## @deftypefn {Function File} {} comet3 (@var{z}) | |
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21 ## @deftypefnx {Function File} {} comet3 (@var{x}, @var{y}, @var{z}) |
| 11382 | 22 ## @deftypefnx {Function File} {} comet3 (@var{x}, @var{y}, @var{z}, @var{p}) |
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23 ## @deftypefnx {Function File} {} comet3 (@var{hax}, @dots{}) |
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24 ## Produce a simple comet style animation along the trajectory provided by |
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25 ## the input coordinate vectors (@var{x}, @var{y}, @var{z}). If only @var{z} |
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26 ## is specified then @var{x}, @var{y} default to the indices of @var{z}. |
| 11382 | 27 ## |
| 28 ## The speed of the comet may be controlled by @var{p}, which represents the | |
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29 ## time each point is displayed before moving to the next one. The default for |
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30 ## @var{p} is 0.1 seconds. |
| 11382 | 31 ## |
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32 ## If the first argument @var{hax} is an axes handle, then plot into this axis, |
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33 ## rather than the current axes returned by @code{gca}. |
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34 ## @seealso{comet} |
| 11382 | 35 ## @end deftypefn |
| 36 | |
| 37 ## Author: jwe | |
| 38 ## Created: 2010-12-17 | |
| 39 | |
| 40 function comet3 (varargin) | |
| 41 | |
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42 [hax, varargin, nargin] = __plt_get_axis_arg__ ("comet3", varargin{:}); |
| 11382 | 43 |
| 44 if (nargin == 0 || nargin == 2 || nargin > 4) | |
| 45 print_usage (); | |
| 46 elseif (nargin == 1) | |
| 47 z = varargin{1}; | |
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48 x = y = 1:numel (z); |
| 11382 | 49 p = 0.1; |
| 50 elseif (nargin == 3) | |
| 51 x = varargin{1}; | |
| 52 y = varargin{2}; | |
| 53 z = varargin{3}; | |
| 54 p = 0.1; | |
| 55 elseif (nargin == 4) | |
| 56 x = varargin{1}; | |
| 57 y = varargin{2}; | |
| 58 z = varargin{3}; | |
| 59 p = varargin{4}; | |
| 60 endif | |
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61 |
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62 oldfig = ifelse (isempty (hax), [], get (0, "currentfigure")); |
| 11382 | 63 unwind_protect |
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64 hax = newplot (hax); |
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65 limits = [min(x), max(x), min(y), max(y), min(z), max(z)]; |
| 11382 | 66 num = numel (y); |
| 67 dn = round (num/10); | |
| 68 for n = 1:(num+dn); | |
| 69 m = n - dn; | |
| 70 m = max ([m, 1]); | |
| 71 k = min ([n, num]); | |
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72 htmp = plot3 (x(1:m), y(1:m), z(1:m), "r", |
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73 x(m:k), y(m:k), z(m:k), "g", |
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74 x(k), y(k), z(k), "ob"); |
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75 axis (limits); |
| 11382 | 76 drawnow (); |
| 77 pause (p); | |
| 78 endfor | |
| 79 unwind_protect_cleanup | |
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80 if (! isempty (oldfig)) |
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81 set (0, "currentfigure", oldfig); |
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82 endif |
| 11382 | 83 end_unwind_protect |
| 84 | |
| 85 endfunction | |
| 86 | |
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87 |
| 11382 | 88 %!demo |
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89 %! clf; |
| 11382 | 90 %! t = 0:pi/20:5*pi; |
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91 %! comet3 (cos (t), sin (t), t, 0.01); |
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92 |