--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/m-toolbox/classes/@timespan/double.m	Wed Nov 23 19:22:13 2011 +0100
@@ -0,0 +1,83 @@
+% DOUBLE overloads double() function for timespan objects.
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% DESCRIPTION: DOUBLE overloads double() function for timespan objects.
+%              The result is the number of seconds spanned by the object
+%
+% CALL:        d = double(t);
+%
+% <a href="matlab:utils.helper.displayMethodInfo('timespan', 'double')">Parameters Description</a>
+%
+% VERSION:     $Id: double.m,v 1.7 2011/04/08 08:56:37 hewitson Exp $
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+function varargout = double(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 time objects and plists
+  ts = utils.helper.collect_objects(varargin(:), 'timespan', in_names);
+  
+  % go through timespan objects
+  td = [];
+  for jj = 1:numel(ts)
+    td(jj) = (ts(jj).endT.utc_epoch_milli - ts(jj).startT.utc_epoch_milli) / 1000.0;
+  end
+  
+  % Set output
+  if nargout == numel(ts)
+    % List of outputs
+    for ii = 1:numel(ts)
+      varargout{ii} = td(ii);
+    end
+  else
+    % Single output
+    varargout{1} = td;
+  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, 'timespan', 'ltpda', utils.const.categories.internal, '$Id: double.m,v 1.7 2011/04/08 08:56:37 hewitson Exp $', sets, pl);
+  ii.setModifier(false);
+  ii.setOutmin(0);
+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.EMPTY_PLIST;
+end
+