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annotate scripts/plot/patch.m @ 7016:93c65f2a5668

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[project @ 2007-10-12 06:40:56 by jwe]
author jwe
date Fri, 12 Oct 2007 06:41:26 +0000
parents c7484dcadd4d
children a1dbe9d80eee
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1 ## Copyright (C) 2005 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 3 of the License, or (at
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8 ## your option) 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, see
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17 ## <http://www.gnu.org/licenses/>.
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18
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19 ## -*- texinfo -*-
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20 ## @deftypefn {Function File} {} patch ()
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21 ## @deftypefnx {Function File} {} patch (@var{x}, @var{y}, @var{c})
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22 ## @deftypefnx {Function File} {} patch (@var{x}, @var{y}, @var{c}, @var{opts})
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23 ## @deftypefnx {Function File} {} patch (@var{h}, @dots{})
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24 ## Create patch object from @var{x} and @var{y} with color @var{c} and
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25 ## insert in the current axes object. Return handle to patch object.
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26 ##
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27 ## For a uniform colored patch, @var{c} can be given as an RGB vector,
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28 ## scalar value referring to the current colormap, or string value (for
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29 ## example, "r" or "red").
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30 ## @end deftypefn
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31
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32 ## Author: jwe
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33
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34 function h = patch (varargin)
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35
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36 if (isscalar (varargin{1}) && ishandle (varargin{1}))
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37 h = varargin {1};
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38 if (! strcmp (get (h, "type"), "axes"))
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39 error ("patch: expecting first argument to be an axes object");
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40 endif
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41 oldh = gca ();
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42 unwind_protect
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43 axes (h);
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44 tmp = __patch__ (h, varargin{:});
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45 unwind_protect_cleanup
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46 axes (oldh);
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47 end_unwind_protect
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48 else
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49 tmp = __patch__ (gca (), varargin{:});
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50 endif
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51
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52 if (nargout > 0)
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53 h = tmp;
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54 endif
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55
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56 endfunction