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## Copyright (C) 1993-2013 John W. Eaton
##
## This file is part of Octave.
##
## Octave is free software; you can redistribute it and/or modify it
## under the terms of the GNU General Public License as published by
## the Free Software Foundation; either version 3 of the License, or (at
## your option) any later version.
##
## Octave is distributed in the hope that it will be useful, but
## WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
## General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with Octave; see the file COPYING. If not, see
## <http://www.gnu.org/licenses/>.
## -*- texinfo -*-
## @deftypefn {Function File} {} title (@var{string})
## @deftypefnx {Function File} {} title (@var{string}, @var{prop}, @var{val}, @dots{})
## @deftypefnx {Function File} {} title (@var{hax}, @dots{})
## @deftypefnx {Function File} {@var{h} =} title (@dots{})
## Specify the string used as a title for the current axis.
##
## An optional list of @var{property}/@var{value} pairs can be used to change
## the appearance of the created title text object.
##
## If the first argument @var{hax} is an axes handle, then plot into this axis,
## rather than the current axes returned by @code{gca}.
##
## The optional return value @var{h} is a graphics handle to the created text
## object.
## @seealso{xlabel, ylabel, zlabel, text}
## @end deftypefn
## Author: jwe
function h = title (varargin)
[hax, varargin, nargin] = __plt_get_axis_arg__ ("title", varargin{:});
if (isempty (hax))
hax = gca ();
endif
if (rem (nargin, 2) != 1)
print_usage ();
endif
htmp = __axis_label__ (hax, "title", varargin{:});
if (nargout > 0)
h = htmp;
endif
endfunction
%!demo
%! clf;
%! ax = axes ();
%! h = get (ax, 'title');
%! title ('Test Title Text');
%!demo
%! clf;
%! ax = axes ();
%! h = get (ax, 'title');
%! title ({'Multi-line'; 'Title'; 'Text'});
%!demo
%! clf;
%! plot3 ([0,1], [0,1], [0,1]);
%! h = get (gca, 'title');
%! title ('Test FontSize Property', 'fontsize', 16);
%!test
%! hf = figure ("visible", "off");
%! unwind_protect
%! ax = axes ();
%! h = get (ax, "title");
%! title ("Test Title Text");
%! assert (get (h, "string"), "Test Title Text");
%! unwind_protect_cleanup
%! close (hf);
%! end_unwind_protect
%!test
%! hf = figure ("visible", "off");
%! unwind_protect
%! ax = axes ();
%! h = get (ax, "title");
%! title ({'Multi-line'; 'Title'; 'Text'});
%! assert (get (h, "string"), {'Multi-line'; 'Title'; 'Text'});
%! unwind_protect_cleanup
%! close (hf);
%! end_unwind_protect
%!test
%! hf = figure ("visible", "off");
%! unwind_protect
%! plot3 ([0,1], [0,1], [0,1]);
%! h = get (gca, "title");
%! title ("Test FontSize Property", "fontsize", 16);
%! assert (get (h, "string"), "Test FontSize Property");
%! assert (get (h, "fontsize"), 16);
%! unwind_protect_cleanup
%! close (hf);
%! end_unwind_protect
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