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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/private/__clabel__.m@576cf0589c6d
children d63878346099
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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} {@var{h} =} __clabel__ (@var{c}, @var{v}, @var{hparent}, @var{label_spacing}, @var{z}, @var{varargin})
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21 ## Undocumented internal function.
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22 ## @end deftypefn
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23
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24 function h = __clabel__ (c, v, hparent, label_spacing, z, varargin)
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25
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26 hax = ancestor (hparent, "axes");
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27 units = get (hax, "units");
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28 set (hax, "units", "points");
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29 axpos = get (hax, "position");
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30 set (hax, "units", units);
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31 lims = axis ();
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32 xspacing = axpos(3) / (lims(2) - lims (1));
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33 yspacing = axpos(4) / (lims(4) - lims (3));
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34
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35 if (isscalar (hparent) && ishandle (hparent)
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36 && strcmp (get (hparent, "type"), "hggroup"))
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37 x = get (hparent, "xdata");
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38 xmin = min (x(:));
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39 xmax = max (x(:));
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40 y = get (hparent, "ydata");
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41 ymin = min (y(:));
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42 ymax = max (y(:));
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43 else
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44 xmin = xmax = ymin = ymax = NaN;
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45 i = 1;
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46 while (i < length (c))
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47 clen = c(2,i);
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48 data = c(:, i+(1:clen));
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49
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50 xmin = min ([xmin, data(1,:)]);
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51 xmax = max ([xmax, data(1,:)]);
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52 ymin = min ([ymin, data(2,:)]);
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53 ymax = max ([ymax, data(2,:)]);
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54
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55 i += clen+1;
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56 endwhile
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57 endif
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58
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59 ## Decode contourc output format and place labels.
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60 h = [];
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61 i = 1;
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62 while (i < length (c))
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63 clev = c(1,i);
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64 clen = c(2,i);
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65
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66 if (! isempty (v) && ! any (v == clev))
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67 i += clen+1;
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68 continue;
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69 endif
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70
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71 p = bsxfun (@times, c(:, i+(1:clen)), [xspacing; yspacing]);
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72 d = sqrt (sumsq (diff (p, 1, 2)));
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73 cumd = cumsum (d);
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74 td = cumd(end);
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75 ntag = ceil (td / label_spacing);
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76
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77 if (all (c(:,i+1) == c(:,i+clen)))
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78 ## Closed contour
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79 ## FIXME: This spreads the tags uniformly around the contour which
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80 ## looks nice, but it does not respect the label_spacing attribute.
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81 ## Should we follow user input, which can result in two labels being
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82 ## quite close to each other?
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83 spacing = td / ntag;
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84 pos = spacing/2 + spacing*[0:ntag-1];
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85 else
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86 ## Open contour
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87 pos = zeros (1, ntag);
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88 pos(1) = (td - label_spacing*(ntag - 1)) / 2;
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89 pos(2:ntag) = pos(1) + label_spacing*[1:ntag-1];
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90 endif
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91
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92 tlabel = sprintf ("%.5g", clev);
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93
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94 for tagpos = pos
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95
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96 j = find (cumd > tagpos, 1);
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97 if (isempty (j))
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98 j = clen;
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99 endif
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100 tpos = sum (c(:,i+j-1:i+j), 2) / 2;
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101
17176
abf384f5d243 maint: Remove unneeded input validation from internal fcns in private/ directories.
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102 if ( tpos(1) != xmin && tpos(1) != xmax
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103 && tpos(2) != ymin && tpos(2) != ymax)
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104 trot = 180 / pi * atan2 (diff (c(2,i+j-1:i+j)),
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105 diff (c(1,i+j-1:i+j)));
576cf0589c6d Overhaul contour labeling functions.
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106 if (abs (trot) > 90)
576cf0589c6d Overhaul contour labeling functions.
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107 trot += 180;
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108 endif
10549
95c3e38098bf Untabify .m scripts
Rik <code@nomad.inbox5.com>
parents: 9896
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109 if (ischar (z))
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c792872f8942 all script files: untabify and strip trailing whitespace
John W. Eaton <jwe@octave.org>
parents: 11523
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110 ht = text (tpos(1), tpos(2), clev, tlabel, "rotation", trot,
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111 "horizontalalignment", "center", "userdata", clev,
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112 "parent", hparent, varargin{:});
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113 elseif (! isempty (z))
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c792872f8942 all script files: untabify and strip trailing whitespace
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
114 ht = text (tpos(1), tpos(2), z, tlabel, "rotation", trot,
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115 "horizontalalignment", "center", "userdata", clev,
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116 "parent", hparent, varargin{:});
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117 else
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118 ht = text (tpos(1), tpos(2), tlabel, "rotation", trot,
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119 "horizontalalignment", "center", "userdata", clev,
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120 "parent", hparent, varargin{:});
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121 endif
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122 h = [h; ht];
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David Bateman <dbateman@free.fr>
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123 endif
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124 endfor
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parents: 17338
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125 i += clen+1;
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David Bateman <dbateman@free.fr>
parents:
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126 endwhile
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127
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5d3a684236b0 maint: Use Octave coding conventions for cuddling parentheses in scripts directory
Rik <octave@nomad.inbox5.com>
parents: 14138
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128 endfunction
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1c89599167a6 maint: End m-files with 1 blank line.
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129