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annotate scripts/plot/util/axes.m @ 17720:1ab8e21d9cfc

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Further corrections to parenting of axes (bug #39813) * scripts/plot/util/newplot.m: Accept multiple graphic handles to save. Also save handles when axis nextplot property is "replacechildren". Correct failing %!test. * scripts/plot/util/__plt_get_axis_arg__.m: Return axis as first value, "parent" handle as second value. * scripts/plot/draw/surface.m: Get axis from __plt_get_axis_arg__ and ignore any other returned handles.
author Rik <rik@octave.org>
date Mon, 21 Oct 2013 22:25:15 -0700
parents 7bb76a22cde1
children d63878346099
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72c96de7a403 maint: update copyright notices for 2012
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1 ## Copyright (C) 2005-2012 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} {} axes ()
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21 ## @deftypefnx {Function File} {} axes (@var{property}, @var{value}, @dots{})
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22 ## @deftypefnx {Function File} {} axes (@var{hax})
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23 ## @deftypefnx {Function File} {@var{h} =} axes (@dots{})
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24 ## Create an axes object and return a handle to it, or set the current
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25 ## axes to @var{hax}.
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26 ##
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27 ## Called without any arguments, or with @var{property}/@var{value} pairs,
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28 ## construct a new axes. For accepted properties and corresponding
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29 ## values, @pxref{XREFset,,set}.
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30 ##
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31 ## Called with a single axes handle argument @var{hax}, the function makes
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32 ## @var{hax} the current axis. It also restacks the axes in the
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33 ## corresponding figure so that @var{hax} is the first entry in the list
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34 ## of children. This causes @var{hax} to be displayed on top of any other
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35 ## axes objects (Z-order stacking).
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36 ##
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37 ## @seealso {gca, set, get}
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38 ## @end deftypefn
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39
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40 ## Author: jwe
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41
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42 function h = axes (varargin)
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43
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44 if (nargin == 0 || nargin > 1)
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45 ## Create an axes object.
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46 idx = find (strcmpi (varargin(1:2:end), "parent"), 1, "first");
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47 if (! isempty (idx) && length (varargin) >= 2*idx)
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48 cf = varargin{2*idx};
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49 varargin([2*idx-1, 2*idx]) = [];
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50 else
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51 cf = gcf ();
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52 endif
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53 htmp = __go_axes__ (cf, varargin{:});
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54 if (__is_handle_visible__ (htmp))
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55 set (ancestor (cf, "figure"), "currentaxes", htmp);
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56 endif
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57 else
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58 ## ARG is axes handle.
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59 htmp = varargin{1};
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60 if (isscalar (htmp) && isaxes (htmp))
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61 if (__is_handle_visible__ (htmp))
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62 parent = ancestor (htmp, "figure");
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63 set (0, "currentfigure", parent);
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64 set (parent, "currentaxes", htmp);
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65
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66 ## restack
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67 ch = get (parent, "children")(:);
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68 idx = (ch == htmp);
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69 ch = [ch(idx); ch(!idx)];
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70 set (parent, "children", ch);
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71 endif
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72 else
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73 error ("axes: H must be a scalar axes handle");
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74 endif
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75 endif
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76
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77 if (nargout > 0)
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78 h = htmp;
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79 endif
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80
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81 endfunction
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82