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annotate scripts/plot/cla.m @ 13141:e81ddf9cacd5

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maint: untabify and remove trailing whitespace from source files * bicg.m, gmres.m, pkg.m: Untabify and remove trailing whitespace. * libcruft/Makefile.am, libcruft/blas-xtra/cdotc3.f, libcruft/blas-xtra/cmatm3.f, libcruft/blas-xtra/ddot3.f, libcruft/blas-xtra/dmatm3.f, libcruft/blas-xtra/sdot3.f, libcruft/blas-xtra/smatm3.f, libcruft/blas-xtra/zdotc3.f, libcruft/blas-xtra/zmatm3.f, libcruft/lapack-xtra/crsf2csf.f, libcruft/lapack-xtra/zrsf2csf.f, liboctave/Array.cc, liboctave/DASPK-opts.in, liboctave/DASRT-opts.in, liboctave/DASSL-opts.in, liboctave/LSODE-opts.in, liboctave/Makefile.a,mliboctave/Quad-opts.in, liboctave/Sparse-perm-op-defs.h, scripts/Makefile.a,mscripts/deprecated/glpkmex.m, scripts/general/blkdiag.m, scripts/general/interp1.m, scripts/general/profshow.m, scripts/general/quadl.m, scripts/general/triplequad.m, scripts/help/__makeinfo__.m, scripts/io/strread.m, scripts/io/textread.m, scripts/io/textscan.m, scripts/linear-algebra/rank.m, scripts/miscellaneous/gzip.m, scripts/miscellaneous/private/__xzip__.m, scripts/miscellaneous/tempdir.m, scripts/miscellaneous/unpack.m, scripts/pkg/pkg.m, scripts/plot/allchild.m, scripts/plot/ancestor.m, scripts/plot/cla.m, scripts/plot/clf.m, scripts/plot/findall.m, scripts/plot/findobj.m, scripts/plot/gca.m, scripts/plot/gcf.m, scripts/plot/hggroup.m, scripts/plot/isfigure.m, scripts/plot/ishghandle.m, scripts/plot/legend.m, scripts/plot/line.m, scripts/plot/loglog.m, scripts/plot/patch.m, scripts/plot/print.m, scripts/plot/private/__quiver__.m, scripts/plot/private/__scatter__.m, scripts/plot/rectangle.m, scripts/plot/semilogx.m, scripts/plot/semilogy.m, scripts/plot/surface.m, scripts/plot/text.m, scripts/plot/title.m, scripts/plot/trisurf.m, scripts/plot/view.m, scripts/plot/whitebg.m, scripts/plot/xlabel.m, scripts/plot/xlim.m, scripts/plot/ylabel.m, scripts/plot/ylim.m, scripts/plot/zlabel.m, scripts/plot/zlim.m, scripts/polynomial/mkpp.m, scripts/polynomial/polygcd.m, scripts/polynomial/ppint.m, scripts/polynomial/ppjumps.m, scripts/polynomial/ppval.m, scripts/set/setxor.m, scripts/sparse/bicgstab.m, scripts/sparse/cgs.m, scripts/sparse/spconvert.m, scripts/specfun/nthroot.m, scripts/strings/strmatch.m, scripts/strings/untabify.m, scripts/testfun/demo.m, scripts/testfun/example.m, src/DLD-FUNCTIONS/filter.cc, src/DLD-FUNCTIONS/mgorth.cc, src/DLD-FUNCTIONS/quadcc.cc, src/DLD-FUNCTIONS/str2double.cc, src/Makefile.a,msrc/gl-render.cc, src/gl2ps-renderer.cc, src/graphics.cc, src/octave-config.cc.in, src/octave-config.in, src/ov-class.h, src/ov-fcn.h, src/profiler.cc, src/profiler.h, src/pt-binop.cc, src/pt-unop.cc, src/symtab.cc, src/txt-eng-ft.cc: Remove trailing whitespace.
author John W. Eaton <jwe@octave.org>
date Thu, 15 Sep 2011 12:51:10 -0400
parents 2ea1658ad049
children 72c96de7a403
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1 ## Copyright (C) 2008-2011 Ben Abbott
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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} {} cla ()
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21 ## @deftypefnx {Function File} {} cla ("reset")
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22 ## @deftypefnx {Function File} {} cla (@var{hax})
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23 ## @deftypefnx {Function File} {} cla (@var{hax}, "reset")
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24 ## Delete the children of the current axes with visible handles.
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25 ## If @var{hax} is specified and is an axes object handle, operate on it
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26 ## instead of the current axes. If the optional argument @code{"reset"}
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27 ## is specified, also delete the children with hidden handles.
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28 ## @seealso{clf}
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29 ## @end deftypefn
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30
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31 ## Author: Ben Abbott <bpabbott@mac.com>
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32 ## Created: 2008-10-03
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33
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34 function cla (varargin)
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35
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36 if (nargin > 2)
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37 print_usage ();
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38 elseif (nargin > 1)
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39 if (ishandle (varargin{1})
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40 && strcmp (get (varargin{1}, "type"), "axes")
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41 && ischar (varargin{2}) && strcmpi (varargin{2}, "reset"))
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42 oldhax = gca;
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43 hax = varargin{1};
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44 do_reset = true;
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45 else
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46 print_usage ();
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47 endif
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48 elseif (nargin == 1)
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49 if (ishandle (varargin{1})
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50 && strcmp (get (varargin{1}, "type"), "axes"))
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51 oldhax = gca;
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52 hax = varargin{1};
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53 do_reset = false;
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54 elseif (ischar (varargin{1}) && strcmpi (varargin{1}, "reset"))
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55 hax = gca;
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56 oldhax = hax;
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57 do_reset = true;
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58 else
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59 print_usage ();
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60 endif
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61 else
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62 hax = gca;
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63 oldhax = hax;
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64 do_reset = false;
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65 endif
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66
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67 hc = get (hax, "children");
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68
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69 if (! do_reset && ! isempty (hc))
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70 hc = findobj (hc, "flat", "visible", "on");
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71 hc = setdiff (hc, hax);
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72 endif
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73
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74 if (! isempty (hc))
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75 ## Delete the children of the axis.
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76 delete (hc);
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77 endif
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78
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79 ## FIXME: The defaults should be "reset()" below, but so far there is
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80 ## no method to determine the defaults, much less return an object's
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81 ## properties to their default values. Instead make a close
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82 ## approximation.
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83
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84 axes (hax);
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85 axis ("auto");
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86
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87 ## Set the current axis back to where it was upon entry.
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88 axes (oldhax);
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89
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90 endfunction
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91
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92 %!test
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93 %! hf = figure ("visible", "off");
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94 %! unwind_protect
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95 %! plot (1:10)
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96 %! cla ()
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97 %! kids = get (gca, "children");
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98 %! cla ()
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99 %! unwind_protect_cleanup
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100 %! close (hf)
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101 %! end_unwind_protect
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102 %! assert (numel (kids), 0)