update packages

[CreaPhase.git] / octave_packages / m / plot / axes.m

diff --git a/octave_packages/m/plot/axes.m b/octave_packages/m/plot/axes.m
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+## Copyright (C) 2005-2012 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} {} axes ()
+## @deftypefnx {Function File} {} axes (@var{property}, @var{value}, @dots{})
+## @deftypefnx {Function File} {} axes (@var{h})
+## Create an axes object and return a handle to it.
+## @end deftypefn
+
+## Author: jwe
+
+function h = axes (varargin)
+
+  if (nargin == 0 || nargin > 1)
+    ## Create an axes object.
+    idx = find (strcmpi (varargin(1:2:end), "parent"), 1, "first");
+    if (! isempty (idx) && length (varargin) >= 2*idx)
+      cf = varargin{2*idx};
+      varargin([2*idx-1, 2*idx]) = [];
+    else
+      cf = gcf ();
+    endif
+    tmp = __go_axes__ (cf, varargin{:});
+    if (__is_handle_visible__ (tmp))
+      set (ancestor (cf, "figure"), "currentaxes", tmp);
+    endif
+  else
+    ## arg is axes handle.
+    tmp = varargin{1};
+    if (length(tmp) == 1 && ishandle (tmp)
+        && strcmp (get (tmp, "type"), "axes"))
+      if (__is_handle_visible__ (tmp))
+        parent = ancestor (tmp, "figure");
+        set (0, "currentfigure", parent);
+        set (parent, "currentaxes", tmp);
+      endif
+    else
+      error ("axes: expecting argument to be a scalar axes handle");
+    endif
+  endif
+
+  if (nargout > 0)
+    h = tmp;
+  endif
+
+endfunction