TriangleBSPT.hh

/*===========================================================================*\
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/*===========================================================================*\
 *                                                                           *
 *   $Revision: 8520 $                                                         *
 *   $Author: moebius $                                                      *
 *   $Date: 2010-02-10 15:56:59 +0100 (Mi, 10. Feb 2010) $                   *
 *                                                                           *
\*===========================================================================*/




//=============================================================================
//
//  CLASS TriangleBSPT
//
//=============================================================================

#ifndef MB_TRIANGLEBSP_HH
#define MB_TRIANGLEBSP_HH


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

#include "TriangleBSPCoreT.hh"
#include "BSPImplT.hh"
//#include "Distance.hh"
#include <ACG/Geometry/Algorithms.hh>


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


template <class BSPTraits>
class TriangleBSPT : public BSPImplT< TriangleBSPCoreT<BSPTraits> >
{
public:
  typedef BSPImplT< TriangleBSPCoreT<BSPTraits> > Base;
  TriangleBSPT(const BSPTraits& _traits) : Base(_traits) {}
};


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


template <class Mesh>
class OpenMeshTriangleBSPTraits
{
public:

  typedef typename Mesh::Scalar      Scalar;
  typedef typename Mesh::Point       Point;
  typedef typename Mesh::FaceHandle  Handle;

  OpenMeshTriangleBSPTraits(const Mesh& _mesh) : mesh_(_mesh) {}

  void points(Handle _h, Point& _p0, Point& _p1, Point& _p2) const 
  { 
    typename Mesh::CFVIter fv_it(mesh_.cfv_iter(_h));
    _p0 = mesh_.point(fv_it); ++fv_it;
    _p1 = mesh_.point(fv_it); ++fv_it;
    _p2 = mesh_.point(fv_it);
  }

  Scalar sqrdist(Handle _h, const Point& _p) const 
  {
    Point p0, p1, p2, q;
    points(_h, p0, p1, p2);
    return ACG::Geometry::distPointTriangleSquared(_p, p0, p1, p2, q);
  }

private:

  const Mesh& mesh_;
};


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


template <class Mesh>
class OpenMeshTriangleBSPT 
  : public TriangleBSPT<OpenMeshTriangleBSPTraits<Mesh> >
{
public:
  typedef OpenMeshTriangleBSPTraits<Mesh>  Traits;
  typedef TriangleBSPT<Traits>             Base;
  OpenMeshTriangleBSPT(const Mesh& _mesh) : Base(Traits(_mesh)) {}
};


//=============================================================================
#endif // MB_TRIANGLEBSP_HH defined
//=============================================================================