--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/m-toolbox/classes/@ao/conv.m	Wed Nov 23 19:22:13 2011 +0100
@@ -0,0 +1,115 @@
+% CONV vector convolution.
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% DESCRIPTION: CONV vector convolution.
+%
+% CALL:        >> c = conv(a,b)
+%
+% INPUTS:      pl   - a parameter list
+%              a,b  - input analysis object
+%
+% OUTPUTS:
+%              c    - output analysis object containing the filtered data.
+%
+% <a href="matlab:utils.helper.displayMethodInfo('ao', 'conv')">Parameters Description</a>
+%
+% VERSION:     $Id: conv.m,v 1.18 2011/04/08 08:56:16 hewitson Exp $
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+function varargout = conv(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, ao_invars] = utils.helper.collect_objects(varargin(:), 'ao', in_names);
+
+  if nargout == 0
+    error('### conv cannot be used as a modifier. Please give an output variable.');
+  end
+
+  if numel(as) < 2
+    error('### conv requires at least two input AOs to work.');
+  end
+
+  % Convolute the data
+  name = ao_invars{1};
+  desc = as(1).description;
+  res = as(1).y;
+  plotinfo = as(1).plotinfo;
+  for j=2:numel(as)
+    res = conv(res, as(j).y);
+    name = sprintf('%s,%s', name, ao_invars{j});
+    desc = strcat(desc, [', ' as(j).description]);
+    if ~isempty(as(j).plotinfo)
+      plotinfo = combine(plotinfo, as(j).plotinfo);
+    end
+  end
+
+  % Make new AO
+  bs = ao(res);
+  % name for this object
+  bs.name = sprintf('conv(%s)', name);
+  % set all descriptions
+  bs.description = desc;
+  % keep 'plotinfo'
+  bs.plotinfo = plotinfo;
+  % add history
+  bs.addHistory(getInfo('None'), getDefaultPlist, ao_invars, [as(:).hist]);
+
+  % 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
+
+%--------------------------------------------------------------------------
+% 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, 'ao', 'ltpda', utils.const.categories.sigproc, '$Id: conv.m,v 1.18 2011/04/08 08:56:16 hewitson Exp $', sets, pls);
+  ii.setModifier(false);
+  ii.setArgsmin(2);
+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
+