// Copyright (c) 2006  GeometryFactory (France). All rights reserved.
//
// This file is part of CGAL (www.cgal.org).
// You can redistribute it and/or modify it under the terms of the GNU
// General Public License as published by the Free Software Foundation,
// either version 3 of the License, or (at your option) any later version.
//
// Licensees holding a valid commercial license may use this file in
// accordance with the commercial license agreement provided with the software.
//
// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
//
// $URL$
// $Id$
//
// Author(s)     : Fernando Cacciola <fernando.cacciola@geometryfactory.com>
//
#ifndef CGAL_SURFACE_MESH_SIMPLIFICATION_POLICIES_EDGE_COLLAPSE_MIDPOINT_PLACEMENT_H
#define CGAL_SURFACE_MESH_SIMPLIFICATION_POLICIES_EDGE_COLLAPSE_MIDPOINT_PLACEMENT_H 1

#include <CGAL/Surface_mesh_simplification/Detail/Common.h>
#include <CGAL/Surface_mesh_simplification/Policies/Edge_collapse/Edge_profile.h>

namespace CGAL {

namespace Surface_mesh_simplification
{

template<class ECM_>
class Midpoint_placement
{
public:
    
  typedef ECM_ ECM ;
  
  typedef Edge_profile<ECM> Profile ;
  
  typedef typename halfedge_graph_traits<ECM>::Point Point ;
  
  typedef optional<Point> result_type ;
    
public:

  Midpoint_placement() {}
  
  result_type operator()( Profile const& aProfile ) const
  {
    return result_type(midpoint(aProfile.p0(),aProfile.p1()));
  }

};

} // namespace Surface_mesh_simplification

} //namespace CGAL

#endif // CGAL_SURFACE_MESH_SIMPLIFICATION_POLICIES_EDGE_COLLAPSE_MIDPOINT_PLACEMENT_H //
// EOF //
 
