gar::rec::alg::NNDistance< HitClass, PosType > Class Template Reference

#include <NNClusters.h>

Public Types
typedef HitClass	hit_type

Public Member Functions
	NNDistance (float dCut)
bool	mergeHits (GenericHit< HitClass > *h0, GenericHit< HitClass > *h1)

Protected Member Functions
	NNDistance ()

Protected Attributes
float	_dCutSquared
float	_dCut

Detailed Description

template<class HitClass, typename PosType>
class gar::rec::alg::NNDistance< HitClass, PosType >

Simple predicate class for NN clustering. Requires PosType* HitClass::Position(), e.g for CalorimeterHits use:
NNDistance<CaloHit,float> dist( myDistCut ) ;

Definition at line 256 of file NNClusters.h.

Member Typedef Documentation

template<class HitClass, typename PosType>

typedef HitClass gar::rec::alg::NNDistance< HitClass, PosType >::hit_type

Required typedef for cluster algorithm

Definition at line 261 of file NNClusters.h.

Constructor & Destructor Documentation

template<class HitClass, typename PosType>

gar::rec::alg::NNDistance< HitClass, PosType >::NNDistance ( float  dCut )

inline

C'tor takes merge distance

Definition at line 264 of file NNClusters.h.

: _dCutSquared( dCut*dCut ) , _dCut(dCut)  {}

template<class HitClass, typename PosType>

gar::rec::alg::NNDistance< HitClass, PosType >::NNDistance ( )

protected

Member Function Documentation

template<class HitClass, typename PosType>

bool gar::rec::alg::NNDistance< HitClass, PosType >::mergeHits ( GenericHit< HitClass > *  h0, GenericHit< HitClass > *  h1  )

inline

Merge condition: true if distance is less than dCut given in the C'tor.

Definition at line 268 of file NNClusters.h.

                                                                                  {

          if( std::abs( h0->Index0 - h1->Index0 ) > 1 ) return false ;

          const PosType* pos0 =  h0->first->Position() ;
          const PosType* pos1 =  h1->first->Position() ;

          return
          ( pos0[0] - pos1[0] ) * ( pos0[0] - pos1[0] ) +
          ( pos0[1] - pos1[1] ) * ( pos0[1] - pos1[1] ) +
          ( pos0[2] - pos1[2] ) * ( pos0[2] - pos1[2] )
          < _dCutSquared ;
        }

Member Data Documentation

template<class HitClass, typename PosType>

float gar::rec::alg::NNDistance< HitClass, PosType >::_dCut

protected

Definition at line 285 of file NNClusters.h.

template<class HitClass, typename PosType>

float gar::rec::alg::NNDistance< HitClass, PosType >::_dCutSquared

protected

Definition at line 284 of file NNClusters.h.

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The documentation for this class was generated from the following file:

• garsoft/RecoAlg/NNClusters.h