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annotate scripts/plot/appearance/text.m @ 17572:7bb76a22cde1

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maint: Split scripts/plot directory into 4 pieces. scripts/gui : user-interface functions scripts/plot/appearance : functions controlling plot appearance scripts/plot/draw : plotting functions which produce graphs scripts/plot/util : low-level plotting functions and utilities. * scripts/gui/guidata.m, scripts/gui/guihandles.m, scripts/gui/module.mk, scripts/gui/private/__file_filter__.m, scripts/gui/private/__fltk_file_filter__.m, scripts/gui/private/__is_function__.m, scripts/gui/private/__uigetdir_fltk__.m, scripts/gui/private/__uigetfile_fltk__.m, scripts/gui/private/__uiobject_split_args__.m, scripts/gui/private/__uiputfile_fltk__.m, scripts/gui/uicontextmenu.m, scripts/gui/uicontrol.m, scripts/gui/uigetdir.m, scripts/gui/uigetfile.m, scripts/gui/uimenu.m, scripts/gui/uipanel.m, scripts/gui/uipushtool.m, scripts/gui/uiputfile.m, scripts/gui/uiresume.m, scripts/gui/uitoggletool.m, scripts/gui/uitoolbar.m, scripts/gui/uiwait.m, scripts/gui/waitbar.m, scripts/gui/waitforbuttonpress.m: Moved from scripts/plot to scripts/gui * scripts/plot/appearance/__clabel__.m, scripts/plot/appearance/__getlegenddata__.m, scripts/plot/appearance/axis.m, scripts/plot/appearance/box.m, scripts/plot/appearance/caxis.m, scripts/plot/appearance/clabel.m, scripts/plot/appearance/daspect.m, scripts/plot/appearance/diffuse.m, scripts/plot/appearance/grid.m, scripts/plot/appearance/gtext.m, scripts/plot/appearance/hidden.m, scripts/plot/appearance/legend.m, scripts/plot/appearance/orient.m, scripts/plot/appearance/pbaspect.m, scripts/plot/appearance/private/__axis_label__.m, scripts/plot/appearance/private/__axis_limits__.m, scripts/plot/appearance/shading.m, scripts/plot/appearance/specular.m, scripts/plot/appearance/text.m, scripts/plot/appearance/title.m, scripts/plot/appearance/view.m, scripts/plot/appearance/whitebg.m, scripts/plot/appearance/xlabel.m, scripts/plot/appearance/xlim.m, scripts/plot/appearance/ylabel.m, scripts/plot/appearance/ylim.m, scripts/plot/appearance/zlabel.m, scripts/plot/appearance/zlim.m: Moved from scripts/plot to subdir appearance. * scripts/plot/draw/area.m, scripts/plot/draw/bar.m, scripts/plot/draw/barh.m, scripts/plot/draw/colorbar.m, scripts/plot/draw/comet.m, scripts/plot/draw/comet3.m, scripts/plot/draw/compass.m, scripts/plot/draw/contour.m, scripts/plot/draw/contour3.m, scripts/plot/draw/contourc.m, scripts/plot/draw/contourf.m, scripts/plot/draw/cylinder.m, scripts/plot/draw/ellipsoid.m, scripts/plot/draw/errorbar.m, scripts/plot/draw/ezcontour.m, scripts/plot/draw/ezcontourf.m, scripts/plot/draw/ezmesh.m, scripts/plot/draw/ezmeshc.m, scripts/plot/draw/ezplot.m, scripts/plot/draw/ezplot3.m, scripts/plot/draw/ezpolar.m, scripts/plot/draw/ezsurf.m, scripts/plot/draw/ezsurfc.m, scripts/plot/draw/feather.m, scripts/plot/draw/fill.m, scripts/plot/draw/fplot.m, scripts/plot/draw/hist.m, scripts/plot/draw/isocolors.m, scripts/plot/draw/isonormals.m, scripts/plot/draw/isosurface.m, scripts/plot/draw/line.m, scripts/plot/draw/loglog.m, scripts/plot/draw/loglogerr.m, scripts/plot/draw/mesh.m, scripts/plot/draw/meshc.m, scripts/plot/draw/meshz.m, scripts/plot/draw/pareto.m, scripts/plot/draw/patch.m, scripts/plot/draw/pcolor.m, scripts/plot/draw/peaks.m, scripts/plot/draw/pie.m, scripts/plot/draw/pie3.m, scripts/plot/draw/plot.m, scripts/plot/draw/plot3.m, scripts/plot/draw/plotmatrix.m, scripts/plot/draw/plotyy.m, scripts/plot/draw/polar.m, scripts/plot/draw/private/__add_datasource__.m, scripts/plot/draw/private/__bar__.m, scripts/plot/draw/private/__contour__.m, scripts/plot/draw/private/__errcomm__.m, scripts/plot/draw/private/__errplot__.m, scripts/plot/draw/private/__ezplot__.m, scripts/plot/draw/private/__interp_cube__.m, scripts/plot/draw/private/__line__.m, scripts/plot/draw/private/__marching_cube__.m, scripts/plot/draw/private/__patch__.m, scripts/plot/draw/private/__pie__.m, scripts/plot/draw/private/__plt__.m, scripts/plot/draw/private/__quiver__.m, scripts/plot/draw/private/__scatter__.m, scripts/plot/draw/private/__stem__.m, scripts/plot/draw/quiver.m, scripts/plot/draw/quiver3.m, scripts/plot/draw/rectangle.m, scripts/plot/draw/ribbon.m, scripts/plot/draw/rose.m, scripts/plot/draw/scatter.m, scripts/plot/draw/scatter3.m, scripts/plot/draw/semilogx.m, scripts/plot/draw/semilogxerr.m, scripts/plot/draw/semilogy.m, scripts/plot/draw/semilogyerr.m, scripts/plot/draw/shrinkfaces.m, scripts/plot/draw/slice.m, scripts/plot/draw/sombrero.m, scripts/plot/draw/sphere.m, scripts/plot/draw/stairs.m, scripts/plot/draw/stem.m, scripts/plot/draw/stem3.m, scripts/plot/draw/stemleaf.m, scripts/plot/draw/surf.m, scripts/plot/draw/surface.m, scripts/plot/draw/surfc.m, scripts/plot/draw/surfl.m, scripts/plot/draw/surfnorm.m, scripts/plot/draw/tetramesh.m, scripts/plot/draw/trimesh.m, scripts/plot/draw/triplot.m, scripts/plot/draw/trisurf.m, scripts/plot/draw/waterfall.m: Moved from plot/ to subdir draw. * scripts/plot/util/__actual_axis_position__.m, scripts/plot/util/__default_plot_options__.m, scripts/plot/util/__gnuplot_drawnow__.m, scripts/plot/util/__next_line_color__.m, scripts/plot/util/__next_line_style__.m, scripts/plot/util/__plt_get_axis_arg__.m, scripts/plot/util/__pltopt__.m, scripts/plot/util/allchild.m, scripts/plot/util/ancestor.m, scripts/plot/util/axes.m, scripts/plot/util/cla.m, scripts/plot/util/clf.m, scripts/plot/util/close.m, scripts/plot/util/closereq.m, scripts/plot/util/colstyle.m, scripts/plot/util/copyobj.m, scripts/plot/util/figure.m, scripts/plot/util/findall.m, scripts/plot/util/findfigs.m, scripts/plot/util/findobj.m, scripts/plot/util/gca.m, scripts/plot/util/gcbf.m, scripts/plot/util/gcbo.m, scripts/plot/util/gcf.m, scripts/plot/util/gco.m, scripts/plot/util/ginput.m, scripts/plot/util/gnuplot_binary.in, scripts/plot/util/graphics_toolkit.m, scripts/plot/util/hdl2struct.m, scripts/plot/util/hggroup.m, scripts/plot/util/hold.m, scripts/plot/util/isaxes.m, scripts/plot/util/isfigure.m, scripts/plot/util/ishghandle.m, scripts/plot/util/ishold.m, scripts/plot/util/isprop.m, scripts/plot/util/linkprop.m, scripts/plot/util/meshgrid.m, scripts/plot/util/ndgrid.m, scripts/plot/util/newplot.m, scripts/plot/util/print.m, scripts/plot/util/printd.m, scripts/plot/util/private/__add_default_menu__.m, scripts/plot/util/private/__fltk_ginput__.m, scripts/plot/util/private/__fltk_print__.m, scripts/plot/util/private/__ghostscript__.m, scripts/plot/util/private/__gnuplot_get_var__.m, scripts/plot/util/private/__gnuplot_ginput__.m, scripts/plot/util/private/__gnuplot_has_feature__.m, scripts/plot/util/private/__gnuplot_has_terminal__.m, scripts/plot/util/private/__gnuplot_open_stream__.m, scripts/plot/util/private/__gnuplot_print__.m, scripts/plot/util/private/__gnuplot_version__.m, scripts/plot/util/private/__go_draw_axes__.m, scripts/plot/util/private/__go_draw_figure__.m, scripts/plot/util/private/__print_parse_opts__.m, scripts/plot/util/private/__tight_eps_bbox__.m, scripts/plot/util/refresh.m, scripts/plot/util/refreshdata.m, scripts/plot/util/saveas.m, scripts/plot/util/shg.m, scripts/plot/util/struct2hdl.m, scripts/plot/util/subplot.m: Moved from plot to subdir util. * etc/HACKING: Updated directory structure info. * scripts/Makefile.am, scripts/plot/appearance/module.mk, scripts/plot/draw/module.mk, scripts/plot/util/module.mk: Added new directories to build system.
author Rik <rik@octave.org>
date Fri, 04 Oct 2013 17:09:08 -0700
parents scripts/plot/text.m@4166048ba6cf
children d63878346099
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72c96de7a403 maint: update copyright notices for 2012
John W. Eaton <jwe@octave.org>
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1 ## Copyright (C) 2007-2012 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} {} text (@var{x}, @var{y}, @var{string})
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21 ## @deftypefnx {Function File} {} text (@var{x}, @var{y}, @var{z}, @var{string})
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22 ## @deftypefnx {Function File} {} text (@dots{}, @var{prop}, @var{val}, @dots{})
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23 ## @deftypefnx {Function File} {@var{h} =} text (@dots{})
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24 ## Create a text object with text @var{string} at position @var{x}, @var{y},
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25 ## (@var{z}) on the current axes.
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26 ##
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27 ## Multiple locations can be specified if @var{x}, @var{y}, (@var{z}) are
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28 ## vectors. Multiple strings can be specified with a character matrix or
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29 ## a cell array of strings.
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30 ##
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31 ## Optional property/value pairs may be used to control the appearance of the
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32 ## text.
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33 ##
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34 ## The optional return value @var{h} is a vector of graphics handles to the
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35 ## created text objects.
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36 ## @seealso{gtext, title, xlabel, ylabel, zlabel}
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37 ## @end deftypefn
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38
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39 ## Author: jwe
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40
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41 ## Note: The following code is rigged for Matlab compatibility and is
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42 ## full of hidden assumptions. Be very wary when modifying.
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43
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44 function h = text (varargin)
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45
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46 nargs = nargin;
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47 offset = 0;
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48
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49 if (nargs > 2 && isnumeric (varargin{1}) && isnumeric (varargin{2}))
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50 x = varargin{1};
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51 y = varargin{2};
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52
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53 if (nargin > 3 && isnumeric (varargin{3}))
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54 z = varargin{3};
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55 offset = 4;
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56 else
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57 z = zeros (size (x));
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58 offset = 3;
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59 endif
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60
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61 string = varargin{offset};
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62 varargin(1:offset) = [];
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63
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64 nx = numel (x);
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65 ny = numel (y);
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66 nz = numel (z);
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67 if (ischar (string))
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68
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69 do_keyword_repl = true;
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70 nt = rows (string);
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71 if (nx == 1 && nt == 1)
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72 ## Single text object with one line
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73 string = {string};
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74 elseif (nx == 1 && nt > 1)
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75 ## Single text object with multiple lines
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76 ## FIXME: "default" or "factory" as first row
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77 ## should be escaped to "\default" or "\factory"
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78 ## Other rows do not require escaping.
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79 do_keyword_repl = false;
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80 string = {string};
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81 elseif (nx > 1 && nt == nx)
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82 ## Mutiple text objects with different strings
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83 string = cellstr (string);
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84 else
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85 ## Mutiple text objects with same string
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86 string = repmat ({string}, [nx, 1]);
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87 nt = nx;
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88 endif
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89
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90 ## Escape special keywords
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91 if (do_keyword_repl)
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92 string = regexprep (string, '^(default|factory)$', '\\$1');
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93 endif
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94
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95 elseif (iscell (string))
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96
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97 nt = numel (string);
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98 if (nx == 1)
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99 ## Single text object with one or more lines
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100 string = {string};
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101 nt = 1;
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102 elseif (nx > 1 && nt == nx)
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103 ## Mutiple text objects with different strings
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104 else
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105 ## Mutiple text objects with same string
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106 string = repmat ({string}, [nx, 1]);
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107 nt = nx;
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108 endif
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109
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110 else
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111
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112 error ("text: STRING must be a character string or cell array of character strings");
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113
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114 endif
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115 else # Only PROP/VALUE pairs
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116 x = y = z = 0;
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117 nx = ny = nz = 1;
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118 string = {""};
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119 nt = 1;
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120 endif
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121
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122 ## Any remaining inputs must occur as PROPERTY/VALUE pairs
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123 if (rem (numel (varargin), 2) != 0)
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124 print_usage ();
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125 endif
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126
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127 ## Get axis argument which may be in a 'parent' PROP/VAL pair
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128 [hax, varargin] = __plt_get_axis_arg__ ("text", varargin{:});
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129
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130 if (isempty (hax))
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131 hax = gca ();
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132 endif
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133
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134 ## Position argument may alse be in PROP/VAL pair
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135 idx = find (strcmpi (varargin, "position"), 1);
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136 if (idx)
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137 pos = varargin{idx+1};
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138 varargin(idx:idx+1) = [];
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139 else
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140 pos = [x(:), y(:), z(:)];
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141 endif
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142
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143 if (nx == ny && nx == nz && (nt == nx || nt == 1 || nx == 1))
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144 htmp = zeros (nt, 1);
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145 if (nx == 1)
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146 htmp = __go_text__ (hax, "string", string{1},
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147 ## varargin first, in case "Units" set for pos.
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148 varargin{:},
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149 "position", pos);
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150 elseif (nx == nt)
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151 for n = 1:nt
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152 htmp(n) = __go_text__ (hax, "string", string{n},
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153 varargin{:},
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154 "position", pos(n,:));
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155 endfor
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156 __request_drawnow__ ();
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157 else
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158 error ("text: dimension mismatch for coordinates and STRING");
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159 endif
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160 elseif (nt == nx || nt == 1 || nx == 1)
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161 error ("text: dimension mismatch for coordinates");
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162 else
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163 error ("text: dimension mismatch between coordinates and strings");
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164 endif
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165
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166 if (nargout > 0)
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167 h = htmp;
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168 endif
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169
44c91c5dfe1d [project @ 2007-01-30 19:16:52 by jwe]
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170 endfunction
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171
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172
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173 %!demo
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174 %! clf;
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175 %! ha = {'left', 'center', 'right'};
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176 %! va = {'bottom', 'middle', 'top'};
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177 %! x = [0.25 0.5 0.75];
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178 %! y = x;
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179 %! for t = 0:30:359;
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180 %! for nh = 1:numel (ha)
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181 %! for nv = 1:numel (va)
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182 %! text (x(nh), y(nv), 'Hello World', ...
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183 %! 'rotation', t, ...
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184 %! 'horizontalalignment', ha{nh}, ...
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185 %! 'verticalalignment', va{nv});
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186 %! end
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187 %! end
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188 %! end
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189 %! set (gca, 'xtick', [0.25, 0.5, 0.75], ...
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190 %! 'xticklabel', ha, ...
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191 %! 'ytick', [0.25, 0.5, 0.75], ...
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192 %! 'yticklabel', va);
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193 %! axis ([0 1 0 1]);
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194 %! xlabel ('horizontal alignment');
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195 %! ylabel ('vertical alignment');
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196 %! title ('text alignment and rotation (0:30:360 degrees)');
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197
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198 %!demo
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199 %! clf;
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200 %! h = mesh (peaks, 'edgecolor', 0.7 * [1 1 1], ...
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201 %! 'facecolor', 'none', ...
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202 %! 'facealpha', 0);
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203 %! for t = 0:45:359;
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204 %! text (25, 25, 0, 'Vertical Alignment = Bottom', ...
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205 %! 'rotation', t, ...
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206 %! 'horizontalalignment', 'left', ...
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207 %! 'verticalalignment', 'bottom');
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208 %! end
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209 %! caxis ([-100 100]);
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210 %! title ('Vertically Aligned at Bottom');
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211
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212 %!demo
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213 %! clf;
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214 %! axis ([0 8 0 8]);
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215 %! title (['1st title';'2nd title']);
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216 %! xlabel (['1st xlabel';'2nd xlabel']);
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217 %! ylabel (['1st ylabel';'2nd ylabel']);
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218 %! text (4, 4, {'Hello', 'World'}, ...
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219 %! 'horizontalalignment', 'center', ...
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220 %! 'verticalalignment', 'middle');
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221 %! grid on;
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222
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223 %!demo
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224 %! clf;
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225 %! h = mesh (peaks (), 'edgecolor', 0.7 * [1 1 1], ...
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226 %! 'facecolor', 'none', ...
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227 %! 'facealpha', 0);
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228 %! title (['1st title';'2nd title']);
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229 %! xlabel (['1st xlabel';'2nd xlabel']);
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230 %! ylabel (['1st ylabel';'2nd ylabel']);
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231 %! zlabel (['1st zlabel';'2nd zlabel']);
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232 %! text (0, 0, 5, {'Hello', 'World'}, ...
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233 %! 'horizontalalignment', 'center', ...
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234 %! 'verticalalignment', 'middle');
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235 %! hold on;
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236 %! plot3 (0, 0, 5, '+k');
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237
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238 %!demo
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239 %! clf;
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240 %! h = text (0.5, 0.3, 'char');
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241 %! assert ('char', class (get (h, 'string')));
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242 %! h = text (0.5, 0.4, ['char row 1'; 'char row 2']);
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243 %! assert ('char', class (get (h, 'string')));
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244 %! h = text (0.5, 0.6, {'cell2str (1,1)', 'cell2str (1,2)'; 'cell2str (2,1)', 'cell2str (2,2)'});
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245 %! assert ('cell', class (get (h, 'string')));
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246 %! h = text (0.5, 0.8, 'foobar');
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247 %! set (h, 'string', 1:3);
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248 %! h = text ([0.1, 0.1], [0.3, 0.4], 'one string & two objects');
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249 %! assert ('char', class (get (h(1), 'string')));
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250 %! assert ('char', class (get (h(2), 'string')));
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251 %! h = text ([0.1, 0.1], [0.5, 0.6], {'one cellstr & two objects'});
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252 %! assert ('cell', class (get (h(1), 'string')));
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253 %! assert ('cell', class (get (h(2), 'string')));
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254 %! h = text ([0.1, 0.1], [0.7, 0.8], {'cellstr 1 object 1', 'cellstr 2 object 2'});
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255 %! assert ('char', class (get (h(1), 'string')));
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256 %! assert ('char', class (get (h(2), 'string')));
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257 %! h = text ([0.1, 0.1], [0.1, 0.2], ['1st string & 1st object'; '2nd string & 2nd object']);
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258 %! assert ('char', class (get (h(1), 'string')));
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259 %! assert ('char', class (get (h(2), 'string')));
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260 %! h = text (0.7, 0.6, 'single string');
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261 %! assert ('char', class (get (h, 'string')));
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262 %! h = text (0.7, 0.5, {'single cell-string'});
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263 %! assert ('cell', class (get (h, 'string')));
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264 %! xlabel (1:2);
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265 %! ylabel (1:2);
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266 %! title (1:2);
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267
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268 %!test
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269 %! hf = figure ("visible", "off");
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270 %! unwind_protect
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271 %! ## Single object with one line
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272 %! h = text (0.5, 0.3, "single object with one line");
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273 %! obs = get (h, "string");
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274 %! assert (class (obs), "char");
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275 %! assert (obs, "single object with one line");
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276 %!
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277 %! ## Single object with multiple lines
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278 %! h = text (0.5, 0.4, ["char row 1"; "char row 2"]);
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279 %! obs = get (h, "string");
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280 %! assert (class (obs), "char");
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281 %! assert (obs, ["char row 1"; "char row 2"]);
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282 %!
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283 %! ## Multiple objects with single line
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284 %! h = text ([0.1, 0.1], [0.3, 0.4], "two objects with same string");
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285 %! assert (class (get (h(1), "string")), "char");
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286 %! assert (class (get (h(2), "string")), "char");
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287 %! assert (get (h(1), "string"), "two objects with same string");
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288 %! assert (get (h(2), "string"), "two objects with same string");
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289 %!
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290 %! ## Multiple objects with multiple lines
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291 %! h = text ([0.1, 0.1], [0.3, 0.4], ["string1"; "string2"]);
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292 %! assert (class (get (h(1), "string")), "char");
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293 %! assert (class (get (h(2), "string")), "char");
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294 %! assert (get (h(1), "string"), "string1");
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295 %! assert (get (h(2), "string"), "string2");
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296 %!
100a7bd2590e text.m: Fix null label if string is "default" (bug #36156)
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297 %! ### Tests repeated with cell input ###
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298 %!
100a7bd2590e text.m: Fix null label if string is "default" (bug #36156)
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299 %! ## Single object with one line
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300 %! h = text (0.5, 0.3, {"single object with one line"});
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301 %! obs = get (h, "string");
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302 %! assert (class (obs), "cell");
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303 %! assert (obs, {"single object with one line"});
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Rik <rik@octave.org>
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diff changeset
304 %!
100a7bd2590e text.m: Fix null label if string is "default" (bug #36156)
Rik <rik@octave.org>
parents: 14872
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305 %! ## Single object with multiple lines
100a7bd2590e text.m: Fix null label if string is "default" (bug #36156)
Rik <rik@octave.org>
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306 %! h = text (0.5, 0.6, {"cell2str (1,1)", "cell2str (1,2)";
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307 %! "cell2str (2,1)", "cell2str (2,2)"});
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diff changeset
308 %! obs = get (h, "string");
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309 %! assert (class (obs), "cell");
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310 %! assert (obs, {"cell2str (1,1)"; "cell2str (2,1)";
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diff changeset
311 %! "cell2str (1,2)"; "cell2str (2,2)"});
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Rik <rik@octave.org>
parents: 14872
diff changeset
312 %!
100a7bd2590e text.m: Fix null label if string is "default" (bug #36156)
Rik <rik@octave.org>
parents: 14872
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313 %! ## Multiple objects with single line
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Rik <rik@octave.org>
parents: 14872
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314 %! h = text ([0.1, 0.1], [0.5, 0.6], {"two objects with same cellstr"});
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315 %! assert (class (get (h(1), "string")), "cell");
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316 %! assert (class (get (h(2), "string")), "cell");
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diff changeset
317 %! ## FIXME: is return value of cellstr, rather than string, Matlab-verified?
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diff changeset
318 %! assert (get (h(1), "string"), {"two objects with same cellstr"});
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diff changeset
319 %! assert (get (h(2), "string"), {"two objects with same cellstr"});
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Rik <rik@octave.org>
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diff changeset
320 %!
100a7bd2590e text.m: Fix null label if string is "default" (bug #36156)
Rik <rik@octave.org>
parents: 14872
diff changeset
321 %! ## Multiple objects with multiple lines
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Rik <rik@octave.org>
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322 %! h = text ([0.1, 0.1], [0.7, 0.8], {"cellstr1", "cellstr2"});
100a7bd2590e text.m: Fix null label if string is "default" (bug #36156)
Rik <rik@octave.org>
parents: 14872
diff changeset
323 %! ## FIXME: is return value really char in Matlab?
100a7bd2590e text.m: Fix null label if string is "default" (bug #36156)
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324 %! assert (class (get (h(1), "string")), "char");
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325 %! assert (class (get (h(2), "string")), "char");
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diff changeset
326 %! assert (get (h(1), "string"), "cellstr1");
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327 %! assert (get (h(2), "string"), "cellstr2");
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328 %!
100a7bd2590e text.m: Fix null label if string is "default" (bug #36156)
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329 %! ## Test special keyword processing
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330 %! h = text (0.5, 0.5, "default");
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331 %! assert (get (h, "string"), "default")
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332 %! h = text (0.5, 0.5, "factory");
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333 %! assert (get (h, "string"), "factory")
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diff changeset
334 %!
13136
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335 %! unwind_protect_cleanup
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336 %! close (hf);
79b9a7669bb8 Tests added for scripts/plot
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337 %! end_unwind_protect
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338