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annotate scripts/plot/figure.m @ 5794:1138ced03f14

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[project @ 2006-05-08 20:23:04 by jwe]
author jwe
date Mon, 08 May 2006 20:23:07 +0000
parents 250917610b55
children 34f96dd5441b
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1 ## Copyright (C) 1996, 1997 John W. Eaton
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2 ##
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3 ## This file is part of Octave.
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4 ##
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5 ## Octave is free software; you can redistribute it and/or modify it
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6 ## under the terms of the GNU General Public License as published by
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7 ## the Free Software Foundation; either version 2, or (at your option)
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8 ## any later version.
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9 ##
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10 ## Octave is distributed in the hope that it will be useful, but
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11 ## WITHOUT ANY WARRANTY; without even the implied warranty of
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12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 ## General Public License for more details.
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14 ##
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15 ## You should have received a copy of the GNU General Public License
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16 ## along with Octave; see the file COPYING. If not, write to the Free
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17 ## Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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18 ## 02110-1301, USA.
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20 ## -*- texinfo -*-
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21 ## @deftypefn {Function File} {} figure (@var{n})
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22 ## Set the current plot window to plot window @var{n}. This function
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23 ## currently requires X11 and a version of gnuplot that supports multiple
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24 ## frames. If @var{n} is not specified, the next available window
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25 ## number is chosen.
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26 ## @end deftypefn
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28 ## Author: jwe
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29
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30 function f = figure (n)
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31
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32 __plot_globals__;
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33
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34 static figure_list = create_set (0);
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35 static figure_called = 0;
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37 if (nargin == 0)
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38 f = max (figure_list) + 1;
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39 else
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40 f = n;
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41 endif
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42
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43 if (nargin < 2)
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44 if (isnumeric (f) && f > 0 && round (f) == f)
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45 __current_figure__ = f;
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46 else
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47 error ("figure: expecting positive integer");
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48 endif
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49 figure_list = union (figure_list, f);
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50 elseif (rem (nargin, 2) == 0)
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51 if (! figure_called)
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52 figure_called = 1;
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53 warning ("figure: setting figure properties is unsupported");
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54 endif
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55 else
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56 usage ("figure (n)");
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57 endif
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58
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59 endfunction