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/*===========================================================================*\
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*                              OpenFlipper                                   *
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*      Copyright (C) 2001-2014 by Computer Graphics Group, RWTH Aachen       *
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/*===========================================================================*\
*                                                                            *
*   $Revision$                                                       *
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\*===========================================================================*/

//=============================================================================
//
//  CLASS AdaptiveRemesherT
//
//=============================================================================


#ifndef ADAPTIVE_REMESHERT_HH
#define ADAPTIVE_REMESHERT_HH


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

#include "BaseRemesherT.hh"
#include "DiffGeoT.hh"
#include <OpenMesh/Core/Utils/Property.hh>

#include "../ProgressEmitter.hh"

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

namespace Remeshing {


//== CLASS DEFINITION =========================================================


template <class Mesh>
class AdaptiveRemesherT : public BaseRemesherT<Mesh>
{
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  typedef typename BaseRemesherT<Mesh>::Selection Selection;
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public:

  typedef BaseRemesherT<Mesh>          Base;
  typedef typename Mesh::Scalar        Scalar;
  typedef typename Mesh::Point         Point;
  typedef typename Mesh::EdgeHandle    EdgeHandle;
  typedef typename Mesh::VertexHandle  VertexHandle;


  AdaptiveRemesherT(Mesh& _mesh, ProgressEmitter* _progress = NULL) : Base(_mesh, _progress) {}

  void remesh(Scalar        _error,
              Scalar        _min_edge_length,
              Scalar        _max_edge_length,
              unsigned int  _iters,
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              bool          _use_projection = true,
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              Selection     _selection=BaseRemesherT<Mesh>::VERTEX_SELECTION);
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protected:

  virtual void init_reference();
  virtual void project_to_reference(VertexHandle _vh) const;

  void compute_curvature(Mesh& _mesh, OpenMesh::VPropHandleT<Scalar> _ph);

  virtual bool is_too_long  (VertexHandle _v0, VertexHandle _v1) const;
  virtual bool is_too_short (VertexHandle _v0, VertexHandle _v1) const;


protected:

  Scalar  error_, emax_, emin_;

  OpenMesh::VPropHandleT<Scalar>  refcurv_, curvature_;
};


//=============================================================================
} // namespace Remeshing
//=============================================================================
#if defined(INCLUDE_TEMPLATES) && !defined(ADAPTIVE_REMESHERT_C)
#define ADAPTIVE_REMESHERT_TEMPLATES
#include "AdaptiveRemesherT.cc"
#endif
//=============================================================================
#endif // ADAPTIVE_REMESHERT_HH defined
//=============================================================================