--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/m-toolbox/classes/@ao/select.m	Wed Nov 23 19:22:13 2011 +0100
@@ -0,0 +1,160 @@
+% SELECT select particular samples from the input AOs and return new AOs with only those samples.
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% DESCRIPTION: SELECT select particular samples from the input AOs and return
+%              new AOs with only those samples.
+%
+% CALL:        b = select(a, [1 2 3 4]);
+%              b = select(a, pl)
+%
+% <a href="matlab:utils.helper.displayMethodInfo('ao', 'select')">Parameters Description</a>
+%
+% VERSION:     $Id: select.m,v 1.42 2011/10/06 05:21:05 hewitson Exp $
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+function varargout = select(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, rest] = utils.helper.collect_objects(varargin(:), 'ao', in_names);
+  [pl, pl_invars, rest] = utils.helper.collect_objects(rest(:), 'plist', in_names);
+  
+  % Decide on a deep copy or a modify
+  bs = copy(as, nargout);
+  
+  % Combine plists
+  pl = parse(pl, getDefaultPlist);
+  
+  % Check for samples in arguments
+  samples_in  = [];
+  for jj = 1:numel(rest)
+    if isnumeric(rest{jj})
+      samples_in = [samples_in reshape(rest{jj}, 1, [])];
+    end
+  end
+  
+  % Get sample selection from plist
+  sam = find(pl, 'samples');
+  axis = find(pl, 'axis');
+  if isnumeric(sam)
+    samples = [samples_in reshape(find(pl, 'samples'), 1, [])];
+  elseif isa(sam, 'ao')
+    if isa(sam.data, 'tsdata')
+      if axis == 'y'
+        samples = [samples_in sam.y];
+      else
+        samples = [samples_in 1:len(sam)];
+      end
+    elseif isa(sam.data, 'xydata') || isa(sam.data, 'fsdata')
+      if axis == 'y'
+        samples = [samples_in reshape(sam.y, 1, [])];
+      else
+        samples = [samples_in reshape(sam.x, 1, [])];
+      end
+    end
+  end
+  samples = sort(samples);
+  % Set the samples again to the plist because it is possible that the user
+  % specified the not in the plist but direct as input.
+  if ~isempty(samples_in)
+    pl.pset('samples', samples);
+  end
+  
+  % Loop over input AOs
+  for jj = 1:numel(bs)
+    if isa(bs(jj).data, 'cdata')
+      bs(jj).data.setY(bs(jj).data.y(samples));
+      if numel(bs(jj).data.dy) > 1
+        bs(jj).data.setDy(bs(jj).data.dy(samples));
+      end
+      if isprop(bs(jj).data, 'enbw')
+        if numel(bs(jj).data.enbw) > 1
+          bs(jj).data.setEnbw(bs(jj).data.enbw(samples));
+        end
+      end
+    else
+      % Get x
+      x = bs(jj).data.getX;
+      % set new samples
+      bs(jj).data.setXY(x(samples), bs(jj).data.y(samples));
+      if numel(bs(jj).data.dx) > 1
+        bs(jj).data.setDx(bs(jj).data.dx(samples));
+      end
+      if numel(bs(jj).data.dy) > 1
+        bs(jj).data.setDy(bs(jj).data.dy(samples));
+      end
+      if isprop(bs(jj).data, 'enbw')
+        if numel(bs(jj).data.enbw) > 1
+          bs(jj).data.setEnbw(bs(jj).data.enbw(samples));
+        end
+      end
+      % if this is tsdata, we may need to do some other steps
+      if isa(bs(jj).data, 'tsdata')
+        % recompute nsecs
+        bs(jj).data.fixNsecs;
+      end
+    end
+    % Set AO name
+    bs(jj).name = sprintf('select(%s)', ao_invars{jj});
+    % Add history
+    bs(jj).addHistory(getInfo('None'), pl, ao_invars(jj), bs(jj).hist);
+  end
+  
+  % Set output
+  varargout = utils.helper.setoutputs(nargout, bs);
+  
+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, 'ao', 'ltpda', utils.const.categories.sigproc, '$Id: select.m,v 1.42 2011/10/06 05:21:05 hewitson Exp $', sets, pl);
+end
+
+%--------------------------------------------------------------------------
+% Get Default Plist
+%--------------------------------------------------------------------------
+function plout = getDefaultPlist()
+  persistent pl;  
+  if ~exist('pl', 'var') || isempty(pl)
+    pl = buildplist();
+  end
+  plout = pl;  
+end
+
+function plo = buildplist()
+  plo = plist();
+  
+  p = param({'samples', 'A list of samples to select.'}, paramValue.EMPTY_DOUBLE);
+  plo.append(p);
+  
+  p = param({'axis', 'If the samples are specified with an AO then it is possible from axis you want to select the samples.'}, {1 {'x', 'y'} paramValue.SINGLE});
+  plo.append(p);
+  
+end
+
+% END
+% PARAMETERS: 'samples'  - a list of samples to select
+%