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annotate scripts/plot/util/clf.m @ 19790:446c46af4b42 stable

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strip trailing whitespace from most source files * Makefile.am, NEWS, build-aux/common.mk, configure.ac, doc/Makefile.am, doc/doxyhtml/Makefile.am, doc/interpreter/Makefile.am, doc/interpreter/arith.txi, doc/interpreter/audio.txi, doc/interpreter/basics.txi, doc/interpreter/bugs.txi, doc/interpreter/container.txi, doc/interpreter/cp-idx.txi, doc/interpreter/data.txi, doc/interpreter/debug.txi, doc/interpreter/diagperm.txi, doc/interpreter/diffeq.txi, doc/interpreter/doccheck/README, doc/interpreter/doccheck/spellcheck, doc/interpreter/emacs.txi, doc/interpreter/errors.txi, doc/interpreter/eval.txi, doc/interpreter/expr.txi, doc/interpreter/external.txi, doc/interpreter/fn-idx.txi, doc/interpreter/func.txi, doc/interpreter/geometry.txi, doc/interpreter/geometryimages.m, doc/interpreter/gpl.txi, doc/interpreter/grammar.txi, doc/interpreter/gui.txi, doc/interpreter/image.txi, doc/interpreter/install.txi, doc/interpreter/interp.txi, doc/interpreter/interpimages.m, 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scripts/statistics/distributions/frnd.m, scripts/statistics/distributions/gamrnd.m, scripts/statistics/distributions/geornd.m, scripts/statistics/distributions/hygernd.m, scripts/statistics/distributions/kolmogorov_smirnov_cdf.m, scripts/statistics/distributions/laplace_cdf.m, scripts/statistics/distributions/laplace_pdf.m, scripts/statistics/distributions/logistic_cdf.m, scripts/statistics/distributions/logistic_pdf.m, scripts/statistics/distributions/lognrnd.m, scripts/statistics/distributions/nbincdf.m, scripts/statistics/distributions/nbininv.m, scripts/statistics/distributions/nbinpdf.m, scripts/statistics/distributions/nbinrnd.m, scripts/statistics/distributions/normrnd.m, scripts/statistics/distributions/poissinv.m, scripts/statistics/distributions/poissrnd.m, scripts/statistics/distributions/tinv.m, scripts/statistics/distributions/trnd.m, scripts/statistics/distributions/unidcdf.m, scripts/statistics/distributions/unidpdf.m, scripts/statistics/distributions/unidrnd.m, scripts/statistics/distributions/unifrnd.m, scripts/statistics/distributions/wblrnd.m, scripts/statistics/models/module.mk, scripts/statistics/tests/kruskal_wallis_test.m, scripts/strings/base2dec.m, scripts/strings/deblank.m, scripts/strings/dec2base.m, scripts/strings/dec2bin.m, scripts/strings/dec2hex.m, scripts/strings/mat2str.m, scripts/strings/ostrsplit.m, scripts/strings/regexptranslate.m, scripts/strings/str2num.m, scripts/strings/strcat.m, scripts/strings/strjoin.m, scripts/strings/strsplit.m, scripts/strings/strtok.m, scripts/strings/strtrim.m, scripts/strings/strtrunc.m, scripts/strings/substr.m, scripts/testfun/__run_test_suite__.m, scripts/testfun/speed.m, scripts/testfun/test.m, scripts/time/asctime.m, scripts/time/datenum.m, scripts/time/datevec.m, scripts/time/weekday.m, src/Makefile.am, test/Makefile.am, test/build-bc-overload-tests.sh, test/build-sparse-tests.sh, test/jit.tst, test/line-continue.tst: Strip trailing whitespace.
author John W. Eaton <jwe@octave.org>
date Tue, 20 Jan 2015 08:26:57 -0500
parents d63878346099
children 4197fc428c7d
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1 ## Copyright (C) 2005-2013 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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19 ## -*- texinfo -*-
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20 ## @deftypefn {Command} {} clf
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21 ## @deftypefnx {Command} {} clf reset
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22 ## @deftypefnx {Function File} {} clf (@var{hfig})
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23 ## @deftypefnx {Function File} {} clf (@var{hfig}, "reset")
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24 ## @deftypefnx {Function File} {@var{h} =} clf (@dots{})
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25 ## Clear the current figure window.
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26 ##
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27 ## @code{clf} operates by deleting child graphics objects with visible
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28 ## handles (HandleVisibility = @qcode{"on"}).
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29 ##
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30 ## If the optional argument @qcode{"reset"} is specified, delete all child
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31 ## objects including those with hidden handles and reset all figure
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32 ## properties to their defaults. However, the following properties are not
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33 ## reset: Position, Units, PaperPosition, PaperUnits.
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34 ##
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35 ## If the first argument @var{hfig} is a figure handle, then operate on
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36 ## this figure rather than the current figure returned by @code{gcf}.
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37 ##
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38 ## The optional return value @var{h} is the graphics handle of the figure
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39 ## window that was cleared.
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40 ## @seealso{cla, close, delete, reset}
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41 ## @end deftypefn
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42
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43 ## Author: jwe
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44
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45 function h = clf (varargin)
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46
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47 if (nargin > 2)
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48 print_usage ();
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49 elseif (nargin == 0)
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50 hfig = gcf;
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51 do_reset = false;
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52 elseif (nargin == 1)
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53 if (isscalar (varargin{1}) && isfigure (varargin{1}))
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54 hfig = varargin{1};
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55 do_reset = false;
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56 elseif (ischar (varargin{1}) && strcmpi (varargin{1}, "reset"))
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57 hfig = gcf;
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58 do_reset = true;
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59 else
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60 print_usage ();
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61 endif
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62 else
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63 if (isscalar (varargin{1}) && isfigure (varargin{1})
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64 && ischar (varargin{2}) && strcmpi (varargin{2}, "reset"))
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65 hfig = varargin{1};
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66 do_reset = true;
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67 else
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68 print_usage ();
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69 endif
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70 endif
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71
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72 if (do_reset)
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73 ## Select all the children, including the one with hidden handles.
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74 delete (allchild (hfig));
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75 reset (hfig);
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76 else
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77 ## Select only the chilren with visible handles.
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78 delete (get (hfig, "children"));
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79 endif
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80
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81 if (nargout > 0)
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82 h = hfig;
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83 endif
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84
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85 endfunction
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86
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87
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88 %!test
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89 %! hf = figure ("visible", "off");
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90 %! unwind_protect
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91 %! l = line;
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92 %! assert (! isempty (get (gcf, "children")));
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93 %! clf;
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94 %! assert (isempty (get (gcf, "children")));
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95 %! unwind_protect_cleanup
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96 %! close (hf);
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97 %! end_unwind_protect
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98
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99 %!test
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100 %! hf = figure ("visible", "off");
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101 %! unwind_protect
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102 %! clf;
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103 %! assert (isempty (get (gcf, "children")));
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104 %! unwind_protect_cleanup
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105 %! close (hf);
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106 %! end_unwind_protect
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107
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108 %!xtest
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109 %! hf = figure ("visible", "off");
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110 %! unwind_protect
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111 %! plot (1:10);
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112 %! set (hf, "papertype", "tabloid");
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113 %! clf (hf);
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114 %! assert (isempty (get (gcf, "children")));
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115 %! assert (get (hf, "papertype"), "tabloid");
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116 %! plot (1:10);
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117 %! clf (hf, "reset");
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118 %! kids = get (hf, "children");
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119 %! assert (isempty (get (gcf, "children")));
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120 %! assert (get (hf, "papertype"), "usletter");
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121 %! unwind_protect_cleanup
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122 %! close (hf);
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123 %! end_unwind_protect
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124