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annotate scripts/plot/clabel.m @ 14964:5d3a684236b0

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maint: Use Octave coding conventions for cuddling parentheses in scripts directory * lin2mu.m, loadaudio.m, wavread.m, accumarray.m, bicubic.m, celldisp.m, colon.m, cplxpair.m, dblquad.m, divergence.m, genvarname.m, gradient.m, int2str.m, interp1.m, interp1q.m, interp2.m, interpn.m, loadobj.m, nthargout.m, __isequal__.m, __splinen__.m, quadgk.m, quadl.m, quadv.m, rat.m, rot90.m, rotdim.m, saveobj.m, subsindex.m, triplequad.m, delaunay3.m, griddata.m, inpolygon.m, tsearchn.m, voronoi.m, get_first_help_sentence.m, which.m, gray2ind.m, pink.m, dlmwrite.m, strread.m, textread.m, textscan.m, housh.m, ishermitian.m, issymmetric.m, krylov.m, logm.m, null.m, rref.m, compare_versions.m, copyfile.m, dump_prefs.m, edit.m, fileparts.m, getappdata.m, isappdata.m, movefile.m, orderfields.m, parseparams.m, __xzip__.m, rmappdata.m, setappdata.m, swapbytes.m, unpack.m, ver.m, fminbnd.m, fminunc.m, fsolve.m, glpk.m, lsqnonneg.m, qp.m, sqp.m, configure_make.m, copy_files.m, describe.m, get_description.m, get_forge_pkg.m, install.m, installed_packages.m, is_architecture_dependent.m, load_package_dirs.m, print_package_description.m, rebuild.m, repackage.m, save_order.m, shell.m, allchild.m, ancestor.m, area.m, axes.m, axis.m, clabel.m, close.m, colorbar.m, comet.m, comet3.m, contour.m, cylinder.m, ezmesh.m, ezsurf.m, findobj.m, fplot.m, hist.m, isocolors.m, isonormals.m, isosurface.m, isprop.m, legend.m, mesh.m, meshz.m, pareto.m, pcolor.m, peaks.m, plot3.m, plotmatrix.m, plotyy.m, polar.m, print.m, __add_datasource__.m, __add_default_menu__.m, __axes_limits__.m, __bar__.m, __clabel__.m, __contour__.m, __errcomm__.m, __errplot__.m, __ezplot__.m, __file_filter__.m, __fltk_print__.m, __ghostscript__.m, __gnuplot_print__.m, __go_draw_axes__.m, __go_draw_figure__.m, __interp_cube__.m, __marching_cube__.m, __patch__.m, __pie__.m, __plt__.m, __print_parse_opts__.m, __quiver__.m, __scatter__.m, __stem__.m, __tight_eps_bbox__.m, __uigetdir_fltk__.m, __uigetfile_fltk__.m, __uiputfile_fltk__.m, quiver.m, quiver3.m, rectangle.m, refreshdata.m, ribbon.m, scatter.m, semilogy.m, shading.m, slice.m, subplot.m, surface.m, surfl.m, surfnorm.m, text.m, uigetfile.m, uiputfile.m, whitebg.m, deconv.m, mkpp.m, pchip.m, polyaffine.m, polyder.m, polygcd.m, polyout.m, polyval.m, ppint.m, ppjumps.m, ppval.m, residue.m, roots.m, spline.m, splinefit.m, addpref.m, getpref.m, setpref.m, ismember.m, setxor.m, arch_fit.m, arch_rnd.m, arch_test.m, autoreg_matrix.m, diffpara.m, fftconv.m, filter2.m, hanning.m, hurst.m, periodogram.m, triangle_sw.m, sinc.m, spectral_xdf.m, spencer.m, stft.m, synthesis.m, unwrap.m, yulewalker.m, bicgstab.m, gmres.m, pcg.m, pcr.m, __sprand_impl__.m, speye.m, spfun.m, sprandn.m, spstats.m, svds.m, treelayout.m, treeplot.m, bessel.m, factor.m, legendre.m, perms.m, primes.m, magic.m, toeplitz.m, corr.m, cov.m, mean.m, median.m, mode.m, qqplot.m, quantile.m, ranks.m, zscore.m, logistic_regression_likelihood.m, bartlett_test.m, chisquare_test_homogeneity.m, chisquare_test_independence.m, kolmogorov_smirnov_test.m, run_test.m, u_test.m, wilcoxon_test.m, z_test.m, z_test_2.m, bin2dec.m, dec2base.m, mat2str.m, strcat.m, strchr.m, strjust.m, strtok.m, substr.m, untabify.m, assert.m, demo.m, example.m, fail.m, speed.m, test.m, now.m: Use Octave coding conventions for cuddling parentheses in scripts directory.
author Rik <octave@nomad.inbox5.com>
date Tue, 17 Jul 2012 07:08:39 -0700
parents ce2b59a6d0e5
children
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rev   line source
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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 (@var{c}, @var{h})
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25 ## @deftypefnx {Function File} {} clabel (@dots{}, @var{prop}, @var{val}, @dots{})
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26 ## @deftypefnx {Function File} {@var{h} =} clabel (@dots{})
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27 ## Add labels to the contours of a contour plot. The contour plot is specified
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28 ## by the contour matrix @var{c} and optionally the contourgroup object @var{h}
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29 ## that are returned by @code{contour}, @code{contourf} and @code{contour3}.
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30 ## The contour labels are rotated and placed in the contour itself.
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31 ##
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32 ## By default, all contours are labeled. However, the contours to label can be
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33 ## specified by the vector @var{v}. If the "manual" argument is given then
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34 ## the contours to label can be selected with the mouse.
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35 ##
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36 ## Additional property/value pairs that are valid properties of text objects
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37 ## can be given and are passed to the underlying text objects. Additionally,
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38 ## the property "LabelSpacing" is available allowing the spacing between labels
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39 ## on a contour (in points) to be specified. The default is 144 points, or 2
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40 ## inches.
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41 ##
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42 ## The optional return value @var{h} is a vector of graphics handles to
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43 ## the text objects representing each label.
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44 ## The "userdata" property of the text objects contains the numerical value of
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45 ## the contour label.
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46 ##
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47 ## An example of the use of @code{clabel} is
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48 ##
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49 ## @example
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50 ## @group
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51 ## [c, h] = contour (peaks (), -4 : 6);
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52 ## clabel (c, h, -4:2:6, "fontsize", 12);
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53 ## @end group
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54 ## @end example
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55 ##
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56 ## @seealso{contour, contourf, contour3, meshc, surfc, text}
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57 ## @end deftypefn
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58
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59 function retval = clabel (c, varargin)
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60 label_spacing = 2 * 72;
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61 have_hg = false;
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62 have_labelspacing = false;
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63
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64 if (nargin < 1)
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65 print_usage ();
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66 elseif (nargin == 1)
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67 hparent = gca ();
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68 else
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69 arg = varargin{1};
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70 if (isscalar (arg) && ishandle (arg)
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71 && strcmp (get (arg, "type"), "hggroup"))
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72 obj = get (arg);
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73 if (! isfield (obj, "contourmatrix"))
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74 error ("clabel: expecting the handle to be a contour group");
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75 endif
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76 hg = arg;
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77 have_hg = true;
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78 varargin(1) = [];
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79 else
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80 hparent = gca ();
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81 endif
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82 endif
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83
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84 if (length (varargin) > 0 && isnumeric (varargin{1}))
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85 v = varargin{1}(:);
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86 varargin(1) = [];
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87 else
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88 v = [];
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89 endif
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90
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91 for i = 1 : length (varargin) - 1
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92 arg = varargin{i};
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93 if (strcmpi (arg, "labelspacing"))
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94 label_spacing = varargin{i+1};
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95 have_labelspacing = true;
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96 varargin(i:i+1) = [];
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97 break;
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98 endif
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99 endfor
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100
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101 for i = 1 : length (varargin)
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102 arg = varargin{i};
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103 if (strcmpi (arg, "manual"))
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104 error ("clabel: manual contouring mode not supported");
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105 endif
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106 endfor
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107
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108 if (have_hg)
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109 if (! isempty (v))
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110 if (have_labelspacing)
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111 set (hg, "textlistmode", "manual", "textlist", v,
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112 "labelspacing", label_spacing, "showtext", "on");
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113 else
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114 set (hg, "textlistmode", "manual", "textlist", v, "showtext", "on");
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115 endif
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116 else
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117 if (have_labelspacing)
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118 set (hg,"showtext", "on", "labelspacing", label_spacing);
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119 else
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120 set (hg,"showtext", "on");
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121 endif
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122 endif
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123 retval = findobj (hg, "type", "text");
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124 if (! isempty (varargin))
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125 set (retval, varargin {:});
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126 endif
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127 else
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128 retval = __clabel__ (c, v, hparent, label_spacing, [], varargin{:});
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129 endif
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130
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131 endfunction
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132
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133
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134 %!demo
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135 %! clf;
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136 %! colormap ('default');
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137 %! [c, h] = contour (peaks (), -4:6);
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138 %! clabel (c, h, -4:2:6, 'fontsize', 12);
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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] = contourf (peaks (), -7:6);
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144 %! clabel (c, h, -6:2:6, 'fontsize', 12);
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145