annotate scripts/plot/refreshdata.m @ 17122:eaab03308c0b

doc: Rewrite docstrings for most plot functions. Emphasize clarity, use common "voice", and increase density of seealso links. * doc/interpreter/plot.txi: Add @findex entries that were in xlim.m * scripts/miscellaneous/getappdata.m scripts/miscellaneous/setappdata.m, scripts/plot/allchild.m, scripts/plot/ancestor.m, scripts/plot/area.m, scripts/plot/axes.m, scripts/plot/axis.m, scripts/plot/bar.m, scripts/plot/barh.m, scripts/plot/box.m, scripts/plot/caxis.m, scripts/plot/cla.m, scripts/plot/clabel.m, scripts/plot/clf.m, scripts/plot/close.m, scripts/plot/closereq.m, scripts/plot/colorbar.m, scripts/plot/comet.m, scripts/plot/comet3.m, scripts/plot/compass.m, scripts/plot/contour.m, scripts/plot/contour3.m, scripts/plot/contourc.m, scripts/plot/contourf.m, scripts/plot/copyobj.m, scripts/plot/cylinder.m, scripts/plot/daspect.m, scripts/plot/diffuse.m, scripts/plot/ellipsoid.m, scripts/plot/errorbar.m, scripts/plot/ezcontour.m, scripts/plot/ezcontourf.m, scripts/plot/ezmesh.m, scripts/plot/ezmeshc.m, scripts/plot/ezplot.m, scripts/plot/ezplot3.m, scripts/plot/ezpolar.m, scripts/plot/ezsurf.m, scripts/plot/ezsurfc.m, scripts/plot/feather.m, scripts/plot/figure.m, scripts/plot/fill.m, scripts/plot/findall.m, scripts/plot/findobj.m, scripts/plot/fplot.m, scripts/plot/gca.m, scripts/plot/gcbf.m, scripts/plot/gcbo.m, scripts/plot/gcf.m, scripts/plot/gco.m, scripts/plot/ginput.m, scripts/plot/graphics_toolkit.m, scripts/plot/grid.m, scripts/plot/gtext.m, scripts/plot/guidata.m, scripts/plot/guihandles.m, scripts/plot/hdl2struct.m, scripts/plot/hggroup.m, scripts/plot/hidden.m, scripts/plot/hist.m, scripts/plot/hold.m, scripts/plot/ishghandle.m, scripts/plot/ishold.m, scripts/plot/isocolors.m, scripts/plot/isprop.m, scripts/plot/legend.m, scripts/plot/line.m, scripts/plot/linkprop.m, scripts/plot/loglog.m, scripts/plot/loglogerr.m, scripts/plot/mesh.m, scripts/plot/meshc.m, scripts/plot/meshgrid.m, scripts/plot/meshz.m, scripts/plot/newplot.m, scripts/plot/orient.m, scripts/plot/pareto.m, scripts/plot/patch.m, scripts/plot/pcolor.m, scripts/plot/peaks.m, scripts/plot/pie.m, scripts/plot/pie3.m, scripts/plot/plot.m, scripts/plot/plot3.m, scripts/plot/plotmatrix.m, scripts/plot/plotyy.m, scripts/plot/polar.m, scripts/plot/print.m, scripts/plot/quiver.m, scripts/plot/quiver3.m, scripts/plot/rectangle.m, scripts/plot/refresh.m, scripts/plot/refreshdata.m, scripts/plot/ribbon.m, scripts/plot/rose.m, scripts/plot/saveas.m, scripts/plot/scatter.m, scripts/plot/scatter3.m, scripts/plot/semilogx.m, scripts/plot/semilogxerr.m, scripts/plot/semilogy.m, scripts/plot/semilogyerr.m, scripts/plot/shading.m, scripts/plot/shg.m, scripts/plot/shrinkfaces.m, scripts/plot/slice.m, scripts/plot/specular.m, scripts/plot/sphere.m, scripts/plot/stairs.m, scripts/plot/stem.m, scripts/plot/stem3.m, scripts/plot/struct2hdl.m, scripts/plot/subplot.m, scripts/plot/surf.m, scripts/plot/surface.m, scripts/plot/surfc.m, scripts/plot/surfl.m, scripts/plot/tetramesh.m, scripts/plot/text.m, scripts/plot/title.m, scripts/plot/trimesh.m, scripts/plot/triplot.m, scripts/plot/trisurf.m, scripts/plot/view.m, scripts/plot/waitbar.m, scripts/plot/waitforbuttonpress.m, scripts/plot/waterfall.m, scripts/plot/whitebg.m, scripts/plot/xlabel.m, scripts/plot/xlim.m, scripts/plot/ylabel.m, scripts/plot/ylim.m, scripts/plot/zlabel.m, scripts/plot/zlim.m: Rewrite docstrings for most plot functions. Emphasize clarity, use common "voice", and increase density of seealso links.
author Rik <rik@octave.org>
date Wed, 31 Jul 2013 13:53:30 -0700
parents 5d3a684236b0
children b90915ba489d
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rev   line source
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1 ## Copyright (C) 2008-2012 David Bateman
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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} {} refreshdata ()
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21 ## @deftypefnx {Function File} {} refreshdata (@var{h})
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22 ## @deftypefnx {Function File} {} refreshdata (@var{h}, @var{workspace})
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23 ## Evaluate any @samp{datasource} properties of the current figure and update
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24 ## the plot if the corresponding data has changed.
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25 ##
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26 ## If the first argument @var{h} is a list of graphic handles, then operate
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27 ## on these objects rather than the current figure returned by @code{gcf}.
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28 ##
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29 ## The optional second argument @var{workspace} can take the following values:
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30 ##
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31 ## @table @asis
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32 ## @item "base"
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33 ## Evaluate the datasource properties in the base workspace. (default).
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34 ##
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35 ## @item "caller"
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36 ## Evaluate the datasource properties in the workspace of the function
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37 ## that called @code{refreshdata}.
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38 ## @end table
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39 ##
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40 ## An example of the use of @code{refreshdata} is:
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41 ##
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42 ## @example
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43 ## @group
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44 ## x = 0:0.1:10;
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45 ## y = sin (x);
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46 ## plot (x, y, "ydatasource", "y");
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47 ## for i = 1 : 100
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48 ## pause (0.1);
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49 ## y = sin (x + 0.1*i);
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50 ## refreshdata ();
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51 ## endfor
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52 ## @end group
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53 ## @end example
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54 ## @end deftypefn
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55
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56 function refreshdata (h, workspace)
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57
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58 if (nargin == 0)
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59 h = gcf ();
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60 workspace = "base";
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61 else
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62 if (iscell (h))
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63 h = [h{:}];
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64 endif
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65 if (!all (ishandle (h)) || !all (strcmp (get (h, "type"), "figure")))
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66 error ("refreshdata: expecting a list of figure handles");
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67 endif
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68 if (nargin < 2)
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69 workspace = "base";
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70 else
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71 if ( !ischar (workspace)
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72 || !(strcmpi (workspace, "base")
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73 || strcmpi (workspace, "caller")))
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74 error ("refreshdata: expecting WORKSPACE to be \"base\" or ""caller\"");
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75 else
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76 workspace = tolower (workspace);
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77 endif
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78 endif
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79 endif
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80
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81 h = findall (h);
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82 objs = [];
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83 props = {};
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84
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85 for i = 1 : numel (h)
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86 obj = get (h (i));
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87 fldnames = fieldnames (obj);
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88 m = regexpi (fieldnames (obj), '^.+datasource$', "match");
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89 idx = ! cellfun ("isempty", m);
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90 if (any (idx))
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91 tmp = m(idx);
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92 props = [props; {vertcat(tmp{:})}];
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93 objs = [objs ; h(i)];
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94 endif
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95 endfor
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96
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97 for i = 1 : length (objs)
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98 for j = 1 : length (props {i})
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99 expr = get (objs(i), props{i}{j});
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100 if (!isempty (expr))
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101 val = evalin (workspace, expr);
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102 prop = props{i}{j}(1:end-6);
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103 if (! isequal (get (objs(i), prop), val))
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104 set (objs(i), props{i}{j}(1:end-6), val);
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105 endif
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106 endif
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107 endfor
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108 endfor
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109
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110 endfunction
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111
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112
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113 %!demo
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114 %! clf;
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115 %! x = 0:0.1:10;
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116 %! y = sin (x);
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117 %! plot (x, y, 'ydatasource', 'y');
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118 %! for i = 1 : 100
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119 %! pause (0.1);
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120 %! y = sin (x + 0.1 * i);
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121 %! refreshdata (gcf, 'caller');
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122 %! end
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123