--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/m-toolbox/classes/@ao/convert.m	Wed Nov 23 19:22:13 2011 +0100
@@ -0,0 +1,195 @@
+% CONVERT perform various conversions on the ao.
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% DESCRIPTION: CONVERT perform various conversions on the ao.
+%
+% CALL:        ao = convert(ao, pl)
+%
+% PARAMETERS:
+% 
+%              'action' - choose a conversion to make [default: none]
+% 
+% Possible actions:
+% 
+%    Unit conversions:
+%         's to Hz'   - convert seconds to Hz in the yunits of this AO.
+%         'Hz to s'   - convert Hz to seconds in the yunits of this AO.
+% 
+%    Data conversions:
+%         'to cdata'  - convert the data in the AO to a cdata type.
+%         'to tsdata' - convert the data in the AO to a tsdata type.
+%         'to fsdata' - convert the data in the AO to a fsdata type.
+%         'to xydata' - convert the data in the AO to a xydata type.
+% 
+% 
+% <a href="matlab:utils.helper.displayMethodInfo('ao', 'convert')">Parameters Description</a>
+%
+% VERSION:     $Id: convert.m,v 1.13 2011/07/01 14:40:18 ingo Exp $
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+function varargout = convert(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, ao_invars,rest] = utils.helper.collect_objects(varargin(:), 'ao', in_names);
+  [pls,  invars, rest] = utils.helper.collect_objects(rest(:), 'plist');
+
+
+  %%% Combine plists
+  pl = parse(pls, getDefaultPlist);
+
+  % Get action to perform
+  action = lower(find(pl, 'action'));
+  
+  if isempty(action)
+    % check rest
+    for kk=1:numel(rest)
+      if ischar(rest{kk})
+        action = lower(rest{kk});
+        pl.pset('action', action);
+      end
+    end
+  end
+
+  % Decide on a deep copy or a modify
+  bs = copy(as, nargout);
+
+  % Loop over AOs
+  for j=1:numel(bs)
+    
+    switch lower(action)
+      case ''
+        % do nothing
+      case 's to hz'        
+        secondsToHz(bs(j));        
+      case 'hz to s'
+        HzToSeconds(bs(j));
+      case 'to cdata'        
+        tocdata(bs(j));        
+      case 'to tsdata'
+        totsdata(bs(j));
+      case 'to fsdata'
+        tofsdata(bs(j));
+      case 'to xydata'
+        toxydata(bs(j));
+      otherwise
+        error('### Unknown action requested.');
+    end
+    
+    % Set history
+    bs(j).addHistory(getInfo('None'), pl, ao_invars(j), bs(j).hist);
+    
+  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
+
+%----------------------------------------------
+% Convert to xydata
+function toxydata(a)  
+  if isa(a.data, 'cdata')
+    x = 1:numel(a.data.y);
+  else
+    x = a.x;
+  end
+  a.data = xydata(x, a.data.y);
+end
+
+%----------------------------------------------
+% Convert to fsdata
+function tofsdata(a)  
+  if isa(a.data, 'cdata')
+    x = 1:numel(a.data.y);
+  else
+    x = a.x;
+  end
+  a.data = fsdata(x, a.data.y);
+end
+%----------------------------------------------
+% Convert to tsdata
+function totsdata(a)  
+  if isa(a.data, 'cdata')
+    x = 1:numel(a.data.y);
+  else
+    x = a.x;
+  end
+  a.data = tsdata(x, a.data.y);
+end
+
+%----------------------------------------------
+% Convert to cdata
+function tocdata(a)  
+  a.data = cdata(a.data.y);
+end
+
+%----------------------------------------------
+% Convert any 's' units to 'Hz' in the yunits
+function secondsToHz(a)  
+  a.data.yunits.sToHz;
+end
+%----------------------------------------------
+% Convert any 'Hz' units to 's' in the yunits
+function HzToSeconds(a)  
+  a.data.yunits.HzToS;
+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, 'ao', 'ltpda', utils.const.categories.helper, '$Id: convert.m,v 1.13 2011/07/01 14:40:18 ingo 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({'action', 'Choose the action to perform.'}, ...
+    {1, {'', 's to Hz', 'Hz to s', 'to cdata', 'to tsdata', 'to fsdata', 'to xydata'}, paramValue.SINGLE});
+  
+end
+