--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/m-toolbox/classes/@matrix/fft.m	Wed Nov 23 19:22:13 2011 +0100
@@ -0,0 +1,115 @@
+% FFT implements the fft operator for matrix objects.
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% DESCRIPTION: FFT implements the fft operator for matrix objects.
+%
+% CALL:        out = fft(in,pl);
+%
+% INPUTS:      in      -  input matrix objects
+%              pl      -  parameter list
+%
+% OUTPUTS:     out     -  output matrix objects
+%
+% <a href="matlab:utils.helper.displayMethodInfo('matrix', 'fft')">Parameters Description</a>
+%
+% VERSION:     $Id: fft.m,v 1.6 2011/04/08 08:56:31 hewitson Exp $
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+function varargout = fft(varargin)
+  
+  % Check if this is a call for parameters
+  if utils.helper.isinfocall(varargin{:})
+    varargout{1} = getInfo(varargin{3});
+    return
+  end
+  
+  if nargout == 0
+    error('### Matrix fft operator can not be used as a modifier.');
+  end
+  
+  % Collect input variable names
+  in_names = cell(size(varargin));
+  for ii = 1:nargin
+    in_names{ii} = inputname(ii);
+  end
+  
+  % Collect all smodels and plists
+  [ms, matrix_invars, rest] = utils.helper.collect_objects(varargin(:), 'matrix', in_names);
+  [pl, pl_invars, rest]     = utils.helper.collect_objects(varargin(:), 'plist', in_names);
+  
+  % Merge with default plist
+  pl = parse(pl, getDefaultPlist);
+  
+  % deep copy
+  mat = copy(ms,1);
+  
+  n = numel(mat);
+  
+  % loop over number of matrices
+  for ii = 1:n
+    % get size of object
+    [rw,cl] = size(mat(ii).objs);
+    
+    % loop over raws and columns
+    for kk = 1:rw
+      for jj = 1:cl
+        mat(ii).objs(kk,jj) = fft(mat(ii).objs(kk,jj),pl);
+      end
+    end
+    mat(ii).addHistory(getInfo('None'), [], {inputname(1)}, [mat(ii).hist]);
+  end
+  
+  varargout{1} = mat;
+  
+end
+
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%                               Local Functions                               %
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% FUNCTION:    getInfo
+%
+% DESCRIPTION: Get Info Object
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+function ii = getInfo(varargin)
+  
+  if nargin == 1 && strcmpi(varargin{1}, 'None')
+    sets = {};
+    pls  = [];
+  else
+    sets = {'Default'};
+    pls  = getDefaultPlist;
+  end
+  % Build info object
+  ii = minfo(mfilename, 'matrix', 'ltpda', utils.const.categories.aop, '$Id: fft.m,v 1.6 2011/04/08 08:56:31 hewitson Exp $', sets, pls);
+  ii.setArgsmin(2);
+  ii.setModifier(false);
+end
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% FUNCTION:    getDefaultPlist
+%
+% DESCRIPTION: 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({'type', 'The fft type. Plain (complete non-symmetric), One-sided (from zero to Nyquist) or two-sided (complete symmetric).'},...
+    {2, {'plain', 'one', 'two'}, paramValue.SINGLE});
+end