Mercurial > hg > octave-nkf
annotate scripts/plot/comet.m @ 14245:4506eade9f04
Use Matlab coding conventions for demos in plot/ directory.
* contrast.m, axis.m, clabel.m, colorbar.m, comet.m, contour.m, contour3.m,
cylinder.m, daspect.m, errorbar.m, ezplot.m, fplot.m, grid.m, hold.m,
isosurface.m, legend.m, loglog.m, loglogerr.m, pareto.m, patch.m, pbaspect.m,
pie.m, pie3.m, plot3.m, plotmatrix.m, plotyy.m, quiver.m, quiver3.m,
rectangle.m, refreshdata.m, scatter.m, scatter3.m, semilogx.m, semilogxerr.m,
semilogy.m, semilogyerr.m, shading.m, stem.m, subplot.m, text.m, title.m,
trimesh.m, triplot.m, trisurf.m, uigetdir.m, uigetfile.m, uimenu.m,
uiputfile.m, waitbar.m, xlim.m, ylim.m, zlim.m: Use Matlab coding conventions
for demos so that compare plots scripts will function.
author | Rik <octave@nomad.inbox5.com> |
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date | Sun, 22 Jan 2012 07:31:32 -0800 |
parents | 11949c9795a0 |
children | 5d3a684236b0 |
rev | line source |
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maint: update copyright notices for 2012
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1 ## Copyright (C) 2008-2012 Ben Abbott |
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2 ## |
11104 | 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 ## | |
8126 | 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 -*- | |
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20 ## @deftypefn {Function File} {} comet (@var{y}) |
8126 | 21 ## @deftypefnx {Function File} {} comet (@var{x}, @var{y}) |
22 ## @deftypefnx {Function File} {} comet (@var{x}, @var{y}, @var{p}) | |
23 ## @deftypefnx {Function File} {} comet (@var{ax}, @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}), where @var{x} will default |
8126 | 26 ## to the indices of @var{y}. |
27 ## | |
28 ## The speed of the comet may be controlled by @var{p}, which represents the | |
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29 ## time which passes as the animation passes from one point to the next. The |
8126 | 30 ## default for @var{p} is 0.1 seconds. |
31 ## | |
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32 ## If @var{ax} is specified the animation is produced in that axis rather than |
8126 | 33 ## the @code{gca}. |
34 ## @end deftypefn | |
35 | |
36 ## Author: Ben Abbott bpabbott@mac.com | |
37 ## Created: 2008-09-21 | |
38 | |
39 function comet (varargin) | |
40 | |
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41 [h, varargin, nargin] = __plt_get_axis_arg__ ("comet", varargin{:}); |
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42 |
8126 | 43 if (nargin == 0) |
44 print_usage (); | |
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45 elseif (nargin == 1) |
8126 | 46 y = varargin{1}; |
47 x = 1:numel(y); | |
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48 p = 0.1; |
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49 elseif (nargin == 2) |
8126 | 50 x = varargin{1}; |
51 y = varargin{2}; | |
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52 p = 0.1; |
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53 elseif (nargin == 3) |
8126 | 54 x = varargin{1}; |
55 y = varargin{2}; | |
56 p = varargin{3}; | |
57 endif | |
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58 |
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59 oldh = gca (); |
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60 unwind_protect |
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61 axes (h); |
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62 newplot (); |
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63 theaxis = [min(x), max(x), min(y), max(y)]; |
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64 num = numel (y); |
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65 dn = round (num/10); |
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66 for n = 1:(num+dn); |
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67 m = n - dn; |
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68 m = max ([m, 1]); |
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69 k = min ([n, num]); |
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70 h = plot (x(1:m), y(1:m), "r", x(m:k), y(m:k), "g", x(k), y(k), "ob"); |
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71 axis (theaxis); |
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72 drawnow (); |
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73 pause (p); |
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74 endfor |
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75 unwind_protect_cleanup |
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76 axes (oldh); |
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77 end_unwind_protect |
8126 | 78 |
79 endfunction | |
80 | |
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81 |
8126 | 82 %!demo |
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83 %! clf; |
8126 | 84 %! t = 0:.1:2*pi; |
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85 %! x = cos (2*t) .* (cos (t).^2); |
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86 %! y = sin (2*t) .* (sin (t).^2); |
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87 %! comet (x, y); |
8126 | 88 |