% SETDX Set the property 'dx'.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% DESCRIPTION: Set the property 'dx'.
%
% CALL:              obj.setDx([1 2 3]);
%              obj = obj.setDx([1 2 3]); create copy of the object
%
% INPUTS:      obj - must be a single data2D object.
%
% VERSION:     $Id: setDx.m,v 1.4 2011/03/21 14:56:06 mauro Exp $
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

function varargout = setDx(varargin)

  obj = varargin{1};
  val = varargin{2};

  % decide whether we modify the object, or create a new one.
  obj = copy(obj, nargout);

  % set 'dx'
  obj.dx = val;

  varargout{1} = obj;
end