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scripts/plot/gca.m

changeset 10289: 4b124317dc38
parent:93c65f2a5668
author: John W. Eaton <jwe@octave.org>
date: Tue Feb 09 20:58:55 2010 -0500 (53 minutes ago)
permissions: -rw-r--r--
description: base_properties::set_children: account for hidden children 
     1## Copyright (C) 2005, 2006, 2007 John W. Eaton

     2##

     3## This file is part of Octave.

     4##

     5## Octave is free software; you can redistribute it and/or modify it

     6## under the terms of the GNU General Public License as published by

     7## the Free Software Foundation; either version 3 of the License, or (at

     8## your option) any later version.

     9##

    10## Octave is distributed in the hope that it will be useful, but

    11## WITHOUT ANY WARRANTY; without even the implied warranty of

    12## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

    13## General Public License for more details.

    14##

    15## You should have received a copy of the GNU General Public License

    16## along with Octave; see the file COPYING.  If not, see

    17## <http://www.gnu.org/licenses/>.

    18

    19## -*- texinfo -*-

    20## @deftypefn {Function File} {} gca ()

    21## Return a handle to the current axis object.  If no axis object

    22## exists, create one and return its handle.  The handle may then be

    23## used to examine or set properties of the axes.  For example,

    24##

    25## @example

    26## @group

    27## ax = gca ();

    28## set (ax, "position", [0.5, 0.5, 0.5, 0.5]);

    29## @end group

    30## @end example

    31##

    32## @noindent

    33## creates an empty axes object, then changes its location and size in

    34## the figure window.

    35## @seealso{get, set}

    36## @end deftypefn

    37

    38## Author: jwe

    39

    40function h = gca ()

    41

    42  if (nargin == 0)

    43    h = get (gcf (), "currentaxes");

    44    if (isempty (h))

    45      h = axes ();

    46    endif

    47  else

    48    print_usage ();

    49  endif

    50

    51endfunction