--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/m-toolbox/classes/@ltpda_tf/simplifyUnits.m	Wed Nov 23 19:22:13 2011 +0100
@@ -0,0 +1,136 @@
+% SIMPLIFYUNITS simplify the input units and/or output units of the object.
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% DESCRIPTION: SIMPLIFYUNITS simplify the input units and/or output units
+%              of the object.
+%
+% CALL:        t = simplifyUnits(t)
+%              obj = obj.simplifyUnits(pl);
+%
+% <a href="matlab:utils.helper.displayMethodInfo('ltpda_tf', 'simplifyUnits')">Parameters Description</a>
+%
+% VERSION:     $Id: simplifyUnits.m,v 1.6 2011/04/08 08:56:38 hewitson Exp $
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+function varargout = simplifyUnits(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
+  [as, tf_invars,rest] = utils.helper.collect_objects(varargin(:), '', in_names);
+  [pls,  invars, rest] = utils.helper.collect_objects(rest(:), 'plist');
+  
+  %%% Combine plists
+  pls = parse(pls, getDefaultPlist);
+  
+  % Decide on a deep copy or a modify
+  bs = copy(as, nargout);
+  
+  % The ports to simplify
+  port = find(pls, 'port');
+  
+  % gathering exception list
+  exceptions = find(pls, 'exceptions');
+  if isempty(exceptions)
+    exceptions = cell(0);
+  elseif ~iscell(exceptions)
+    exceptions = cellstr(exceptions);
+  end
+  
+  % Loop over AOs
+  for j=1:numel(bs)
+    
+    switch port
+      case 'in'
+    
+        bs(j).setIunits(simplify(bs(j).iunits, exceptions));
+        
+      case 'out'
+        
+        bs(j).setOunits(simplify(bs(j).ounits, exceptions));
+        
+      case 'both'
+        
+        bs(j).setIunits(simplify(bs(j).iunits, exceptions));
+        bs(j).setOunits(simplify(bs(j).ounits, exceptions));
+        
+      otherwise
+        error('ltpda:ltpda_tf:simplifyUnits', 'unrecognized port option');
+    end    
+    
+    if ~strcmp(varargin{end}, 'internal')
+      bs(j).addHistory(getInfo('None'), pls, tf_invars(j), bs(j).hist);
+    end
+  end
+  
+  % Set output
+  if nargout == numel(bs)
+    % List of outputs
+    for ii = 1:numel(bs)
+      varargout{ii} = bs(ii);
+    end
+  else
+    % Single output
+    varargout{1} = bs;
+  end
+end
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%                               Local Functions                               %
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+
+%--------------------------------------------------------------------------
+% 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, 'ltpda_tf', 'ltpda', utils.const.categories.helper, '$Id: simplifyUnits.m,v 1.6 2011/04/08 08:56:38 hewitson Exp $', sets, pl);
+end
+
+%--------------------------------------------------------------------------
+% Get Default Plist
+%--------------------------------------------------------------------------
+function plout = getDefaultPlist()
+  persistent pl;  
+  if exist('pl', 'var')==0 || isempty(pl)
+    pl = buildplist();
+  end
+  plout = pl;  
+end
+
+function pl = buildplist()
+  pl = plist();
+  
+  % Exceptions
+  p = param({'exceptions', 'A string or cell of strings of units which are not simplyfied.'}, ...
+    paramValue.EMPTY_STRING);
+  pl.append(p);
+  
+  % Port
+  p = param({'port', 'The port to simplify the units of.'}, ...
+    {3, {'in', 'out', 'both'}, paramValue.SINGLE});
+  pl.append(p);
+  
+end
+