BaseRemesherT.hh

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//=============================================================================
//
//  CLASS BaseRemesherT
//
//=============================================================================


#ifndef BASE_REMESHERT_HH
#define BASE_REMESHERT_HH

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

#include <OpenMesh/Core/Utils/Property.hh>
#include <ACG/Geometry/bsp/TriangleBSPT.hh>

#include "../ProgressEmitter.hh"

//== FORWARDDECLARATIONS ======================================================


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

namespace Remeshing {


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


template <class Mesh>
class BaseRemesherT
{
public:

  enum Selection
  {
    VERTEX_SELECTION,
    FACE_SELECTION
  };

  typedef typename Mesh::Scalar         Scalar;
  typedef typename Mesh::Point          Point;
  typedef typename Mesh::EdgeHandle     EdgeHandle;
  typedef typename Mesh::HalfedgeHandle HalfedgeHandle;
  typedef typename Mesh::VertexHandle   VertexHandle;


  BaseRemesherT(Mesh& _mesh, ProgressEmitter* _progress = NULL);
  virtual ~BaseRemesherT();

  void remesh(unsigned int  _iters,
              unsigned int  _area_iters,
              bool          _use_projection = true,
              Selection     _selection=VERTEX_SELECTION);



protected:

  void prepare_vertex_selection();
  void prepare_face_selection();
  void remeshh(unsigned int _iters, unsigned int _aiters, bool _proj);
  void cleanup();

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

  void split_long_edges();
  void collapse_short_edges();
  void flip_edges();
  void tangential_smoothing(bool _use_projection);
  void balanace_area(unsigned int _iters, bool _use_projection);
  void remove_caps();

  virtual bool is_too_long  (VertexHandle _v0, VertexHandle _v1) const = 0;
  virtual bool is_too_short (VertexHandle _v0, VertexHandle _v1) const = 0;

  bool edge_flip_flips_normal(EdgeHandle _eh);
  bool collapse_flips_normal(HalfedgeHandle _heh);

  
protected:

  typedef OpenMeshTriangleBSPT<Mesh>  BSP;

  Mesh&  mesh_;
  Mesh*  refmesh_;
  BSP*   bsp_;
  bool   nothing_selected_;

  OpenMesh::VPropHandleT<int>     valences_;
  OpenMesh::VPropHandleT<Point>   update_;
  OpenMesh::VPropHandleT<Scalar>  area_;

  ProgressEmitter* progress_;
};


//=============================================================================
} // namespace Remeshing
//=============================================================================
#if defined(INCLUDE_TEMPLATES) && !defined(BASE_REMESHERT_C)
#define BASE_REMESHERT_TEMPLATES
#include "BaseRemesherT_impl.hh"
#endif
//=============================================================================
#endif // BASE_REMESHERT_HH defined
//=============================================================================