--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/m-toolbox/classes/@ao/cat.m	Wed Nov 23 19:22:13 2011 +0100
@@ -0,0 +1,80 @@
+% CAT concatenate AOs into a row vector.
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% DESCRIPTION: CAT concatenate AOs into a row vector.
+%
+% CALL:        a = cat(a1, a2)
+%
+% REMARK:      This method is a transparent method, and doesn't add history.
+%
+% <a href="matlab:utils.helper.displayMethodInfo('ao', 'cat')">Parameters Description</a>
+% 
+% VERSION:     $Id: cat.m,v 1.24 2011/04/08 08:56:13 hewitson Exp $
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+function varargout = cat(varargin)
+
+  % Check if this is a call for parameters
+  if utils.helper.isinfocall(varargin{:})
+    varargout{1} = getInfo(varargin{3});
+    return
+  end
+
+  import utils.const.*
+  utils.helper.msg(msg.PROC3, 'running %s/%s', mfilename('class'), mfilename);
+  
+  % Collect input variable names
+  in_names = cell(size(varargin));
+  for ii = 1:nargin,in_names{ii} = inputname(ii);end
+
+  % Collect all AOs and plists
+  as  = utils.helper.collect_objects(varargin(:), 'ao', in_names);
+
+  % Decide on a deep copy or a modify
+  bs = copy(as, nargout);
+
+  % Reshape always to a row vector
+  bs = reshape(bs, 1, []);
+
+  % Set output
+  if nargout == 0
+    error('### cat cannot be used as a modifier. Please give an output variable.');
+  else
+    varargout{1} = bs;
+  end
+end
+
+%--------------------------------------------------------------------------
+% Get Info Object
+%--------------------------------------------------------------------------
+function ii = getInfo(varargin)
+  if nargin == 1 && strcmpi(varargin{1}, 'None')
+    sets = {};
+    pl   = [];
+  else
+    sets = {'Default'};
+    pl   = getDefaultPlist;
+  end
+  % Build info object
+  ii = minfo(mfilename, 'ao', 'ltpda', utils.const.categories.op, '$Id: cat.m,v 1.24 2011/04/08 08:56:13 hewitson Exp $', sets, pl);
+  ii.setModifier(false);
+end
+
+%--------------------------------------------------------------------------
+% Get Default Plist
+%--------------------------------------------------------------------------
+
+function plout = getDefaultPlist()
+  persistent pl;  
+  if exist('pl', 'var')==0 || isempty(pl)
+    pl = buildplist();
+  end
+  plout = pl;  
+end
+
+function pl_default = buildplist()
+  pl_default = plist.EMPTY_PLIST;
+end
+
+