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annotate scripts/image/__img__.m @ 6356:8bb0d11c7a97

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[project @ 2007-02-26 14:45:29 by dbateman]
author dbateman
date Mon, 26 Feb 2007 14:48:22 +0000
parents 725709ab0445
children 0eac3484e8df
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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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19
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20 ## -*- texinfo -*-
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21 ## @deftypefn {Function File} {} __img__ (@var{img})
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22 ## @deftypefnx {Function File} {} __img__ (@var{x}, @var{y}, @var{img})
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23 ## Generic image creation.
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24 ##
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25 ## The axis values corresponding to the matrix elements are specified in
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26 ## @var{x} and @var{y}. If you're not using gnuplot 4.2 or later, these
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27 ## variables are ignored.
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28 ## @end deftypefn
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29
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30 ## Author: Tony Richardson <arichard@stark.cc.oh.us>
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31 ## Created: July 1994
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32 ## Adapted-By: jwe
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33
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34 function h = __img__ (x, y, img)
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35
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36 newplot ();
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37
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38 if (isempty (img))
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39 error ("__img__: matrix is empty");
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40 endif
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41
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42 if (isempty (x))
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43 x = [1, columns(img)];
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44 endif
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45
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46 if (isempty (y))
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47 y = [1, rows(img)];
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48 endif
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49
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50 xlim = [x(1), x(end)];
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51 ylim = [y(1), y(end)];
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52
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53 ca = gca ();
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54
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55 s = __uiobject_image_ctor__ (ca);
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56
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57 s.cdata = img;
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58 s.xdata = xlim;
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59 s.ydata = ylim;
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60
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61 tmp = __uiobject_make_handle__ (s);
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62
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63 __uiobject_adopt__ (ca, tmp);
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64
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65 set (ca, "view", [0, 90], "xlim", xlim, "ylim", ylim);
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66
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67 if (nargout > 0)
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68 h = tmp;
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69 endif
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70
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71 endfunction