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annotate scripts/plot/appearance/clabel.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/clabel.m@576cf0589c6d
children d63878346099
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72c96de7a403 maint: update copyright notices for 2012
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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} {} clabel (@var{c}, @var{h})
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21 ## @deftypefnx {Function File} {} clabel (@var{c}, @var{h}, @var{v})
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22 ## @deftypefnx {Function File} {} clabel (@var{c}, @var{h}, "manual")
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23 ## @deftypefnx {Function File} {} clabel (@var{c})
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24 ## @deftypefnx {Function File} {} clabel (@dots{}, @var{prop}, @var{val}, @dots{})
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25 ## @deftypefnx {Function File} {@var{h} =} clabel (@dots{})
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26 ## Add labels to the contours of a contour plot.
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27 ##
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28 ## The contour levels are specified by the contour matrix @var{c} which is
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29 ## returned by @code{contour}, @code{contourc}, @code{contourf}, and
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30 ## @code{contour3}. Contour labels are rotated to match the local line
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31 ## orientation and centered on the line. The position of labels along the
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32 ## contour line is chosen randomly.
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33 ##
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34 ## If the argument @var{h} is a handle to a contour group object, then label
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35 ## this plot rather than the one in the current axes returned by @code{gca}.
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36 ##
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37 ## By default, all contours are labeled. However, the contours to label can be
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38 ## specified by the vector @var{v}. If the @qcode{"manual"} argument is
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39 ## given then the contours to label can be selected with the mouse.
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40 ##
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41 ## Additional property/value pairs that are valid properties of text objects
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42 ## can be given and are passed to the underlying text objects. Moreover,
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43 ## the contour group property @qcode{"LabelSpacing"} is available which
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44 ## determines the spacing between labels on a contour to be specified. The
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45 ## default is 144 points, or 2 inches.
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46 ##
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47 ## The optional return value @var{h} is a vector of graphics handles to
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48 ## the text objects representing each label.
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49 ## The @qcode{"userdata"} property of the text objects contains the numerical
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50 ## value of the contour label.
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51 ##
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52 ## An example of the use of @code{clabel} is
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53 ##
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54 ## @example
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55 ## @group
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56 ## [c, h] = contour (peaks (), -4 : 6);
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57 ## clabel (c, h, -4:2:6, "fontsize", 12);
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58 ## @end group
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59 ## @end example
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60 ##
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61 ## @seealso{contour, contourf, contour3, meshc, surfc, text}
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62 ## @end deftypefn
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63
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64 function h = clabel (c, varargin)
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65
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66 have_hg = false;
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67 have_labelspacing = false;
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68 label_spacing = 144; # 2 inches in points
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69
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70 if (nargin < 1)
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71 print_usage ();
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72 elseif (nargin == 1)
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73 hparent = gca ();
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74 else
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75 arg = varargin{1};
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76 if (isscalar (arg) && ishandle (arg)
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77 && strcmp (get (arg, "type"), "hggroup"))
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78 try
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79 get (arg, "contourmatrix");
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80 catch
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81 error ("clabel: H must be a handle to a contour group");
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82 end_try_catch
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83 have_hg = true;
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84 hg = arg;
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85 varargin(1) = [];
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86 else
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87 hparent = gca ();
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88 endif
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89 endif
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90
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91 if (length (varargin) > 0 && isnumeric (varargin{1}))
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92 v = varargin{1}(:);
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93 varargin(1) = [];
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94 else
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95 v = [];
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96 endif
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97
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98 idx = strcmpi (varargin(1:2:end), "manual");
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99 if (any (idx))
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100 error ('clabel: "manual" contour mode is not supported');
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101 endif
8289
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102
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103 idx = find (strcmpi (varargin(1:2:end), "labelspacing"), 1);
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104 if (! isempty (idx))
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105 have_labelspacing = true;
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106 label_spacing = varargin{2*idx};
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107 varargin(2*idx+(-1:0)) = [];
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108 endif
8289
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109
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110 if (have_hg)
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111 if (! isempty (v))
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112 if (have_labelspacing)
11587
c792872f8942 all script files: untabify and strip trailing whitespace
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113 set (hg, "textlistmode", "manual", "textlist", v,
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114 "labelspacing", label_spacing, "showtext", "on");
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115 else
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116 set (hg, "textlistmode", "manual", "textlist", v, "showtext", "on");
8289
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117 endif
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118 else
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119 if (have_labelspacing)
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120 set (hg, "showtext", "on", "labelspacing", label_spacing);
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121 else
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122 set (hg, "showtext", "on");
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123 endif
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124 endif
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125 htmp = findobj (hg, "type", "text");
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126 if (! isempty (varargin))
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127 set (htmp, varargin{:});
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128 endif
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129 else
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130 htmp = __clabel__ (c, v, hparent, label_spacing, [], varargin{:});
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131 endif
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132
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133 if (nargout > 0)
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134 h = htmp;
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135 endif
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136
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137 endfunction
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138
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139
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140 %!demo
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141 %! clf;
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142 %! colormap ('default');
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143 %! [c, h] = contour (peaks (), -4:6);
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144 %! clabel (c, h, -4:2:6, 'fontsize', 12);
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145 %! title ('clabel() labeling every other contour');
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146
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147 %!demo
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148 %! clf;
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149 %! colormap ('default');
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150 %! [c, h] = contourf (peaks (), -7:6);
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151 %! clabel (c, h, -6:2:6, 'fontsize', 12);
17190
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152 %! title ('clabel() labeling every other contour');
14001
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Rik <octave@nomad.inbox5.com>
parents: 12575
diff changeset
153