/*===========================================================================*\
 *                                                                           *
 *                               OpenMesh                                    *
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\*===========================================================================*/

/*===========================================================================*\
 *                                                                           *
 *   $Revision: 448 $                                                        *
 *   $Date: 2011-11-04 13:59:37 +0100 (Fri, 04 Nov 2011) $                   *
 *                                                                           *
\*===========================================================================*/

/** \file ModEdgeLengthT.cc
 */


//=============================================================================
//
//  CLASS ModEdgeLengthT - IMPLEMENTATION
//
//=============================================================================

#define MODEDGELENGTHT_C


//== INCLUDES =================================================================

#include "ModEdgeLengthT.hh"


//== NAMESPACES ===============================================================

namespace OpenMesh  {
namespace Decimater {


//== IMPLEMENTATION ==========================================================


template <class DecimaterT>
ModEdgeLengthT<DecimaterT>::
ModEdgeLengthT(DecimaterT &_dec, float _edge_length, bool _is_binary)
  : Base(_dec, _is_binary),
    mesh_(Base::mesh())
{
  set_edge_length(_edge_length);
}


//-----------------------------------------------------------------------------


template <class DecimaterT>
float
ModEdgeLengthT<DecimaterT>::
collapse_priority(const CollapseInfo& _ci)
{
  typename Mesh::Scalar sqr_length = (_ci.p0 - _ci.p1).sqrnorm();

  return ((sqr_length <= sqr_edge_length_) ? 
           sqr_length :
           float( Base::ILLEGAL_COLLAPSE ));
}


//=============================================================================
}
}
//=============================================================================