gar::rec::alg::KNNClusterAlg Class Reference

#include <KNNClusterAlg.h>

Public Member Functions
	KNNClusterAlg (fhicl::ParameterSet const &pset)
virtual	~KNNClusterAlg ()
void	reconfigure (fhicl::ParameterSet const &pset)
bool	usesTracks ()
void	PrepareAlgo (const std::vector< art::Ptr< gar::rec::Track > > &trkVector, const std::vector< art::Ptr< gar::rec::CaloHit > > &hitVector, std::unordered_map< const gar::rec::Track *, art::Ptr< gar::rec::Track > > &trkMaptoArtPtr, std::unordered_map< const gar::rec::CaloHit *, art::Ptr< gar::rec::CaloHit > > &hitMaptoArtPtr)
void	DoClustering ()
ClusterVec	GetFoundClusters () const

Private Member Functions
void	ClearLists ()

Private Attributes
gar::geo::GeometryCore const *	fGeo
	geometry information More...
std::string	fClusterAlgName
float	m_EnergyCut
float	m_DistanceCut
CaloHitVec	m_CaloHitVec
TrackVec	m_TrackVec
ClusterVec	clusterVector

Detailed Description

Definition at line 40 of file KNNClusterAlg.h.

Constructor & Destructor Documentation

gar::rec::alg::KNNClusterAlg::KNNClusterAlg

(

fhicl::ParameterSet const &

pset

)

Definition at line 22 of file KNNClusterAlg.cxx.

            {
                fGeo = gar::providerFrom<geo::GeometryGAr>();
                this->reconfigure(pset);
                ClearLists();
                return;
            }

gar::rec::alg::KNNClusterAlg::~KNNClusterAlg ( )

virtual

Definition at line 30 of file KNNClusterAlg.cxx.

            {
                return;
            }

Member Function Documentation

void gar::rec::alg::KNNClusterAlg::ClearLists ( )

private

Definition at line 46 of file KNNClusterAlg.cxx.

            {
                clusterVector.clear();
                m_CaloHitVec.clear();
                m_TrackVec.clear();

                return;
            }

void gar::rec::alg::KNNClusterAlg::DoClustering

(

)

Definition at line 84 of file KNNClusterAlg.cxx.

            {
                GenericHitVec< gar::rec::CaloHit > h;

                GenericClusterVec< gar::rec::CaloHit > cl;

                EnergyCut< gar::rec::CaloHit > eCut( m_EnergyCut );

                XIndex< gar::rec::CaloHit, 280 > xIndex( -350 , 350. );

                NNDistance< gar::rec::CaloHit, float> dist( m_DistanceCut );

                /* DEBLEO fGeo>GetECALEndcapStartX() returns 260 cm, which seems wrong;
                and fGeo->GetECALEndcapOuterX() returns 374.4 cm, also seems wrong.  */
                AlgCluster< gar::rec::CaloHit > converter( fGeo->GetECALEndcapStartX() );

                int nHit = 0;
                nHit += m_CaloHitVec.size();

                // create a vector of generic hits from the collection applying an energy cut
                addToGenericHitVec( h , m_CaloHitVec , eCut , xIndex ) ;

                // cluster the hits with a nearest neighbour condition
                cluster( h.begin() , h.end() , std::back_inserter( cl )  , &dist ) ;
                
                MF_LOG_DEBUG("KNNClusterAlg::DoClustering()")
                << "  Passing " << h.size() << " of " << nHit
                << "  hits to clustering (E_cut: " << m_EnergyCut << ") "
                << "  found  " << cl.size() << " clusters ";

                // create Clusters from the clustered GenericHits
                std::transform( cl.begin(), cl.end(), std::back_inserter( clusterVector ), converter ) ;

                return;
            }

ClusterVec gar::rec::alg::KNNClusterAlg::GetFoundClusters ( ) const

inline

Definition at line 55 of file KNNClusterAlg.h.

{ return clusterVector; }

void gar::rec::alg::KNNClusterAlg::PrepareAlgo	(	const std::vector< art::Ptr< gar::rec::Track > > &	trkVector,
		const std::vector< art::Ptr< gar::rec::CaloHit > > &	hitVector,
		std::unordered_map< const gar::rec::Track *, art::Ptr< gar::rec::Track > > &	trkMaptoArtPtr,
		std::unordered_map< const gar::rec::CaloHit *, art::Ptr< gar::rec::CaloHit > > &	hitMaptoArtPtr
	)

Definition at line 56 of file KNNClusterAlg.cxx.

            {
                //Clear the lists
                ClearLists();

                //Loop over all tracks
                for (std::vector< art::Ptr<gar::rec::Track> >::const_iterator iter = trkVector.begin(), iterEnd = trkVector.end(); iter != iterEnd; ++iter)
                {
                    art::Ptr<gar::rec::Track> trkPtr = *iter;
                    const gar::rec::Track *track = trkPtr.get();
                    m_TrackVec.push_back( const_cast<gar::rec::Track *>(track) );
                    //update the track art ptr map
                    trkMaptoArtPtr.insert( std::make_pair(track, trkPtr) );
                }
                //Loop over all hits
                for (std::vector< art::Ptr<gar::rec::CaloHit> >::const_iterator iter = hitVector.begin(), iterEnd = hitVector.end(); iter != iterEnd; ++iter)
                {
                    art::Ptr<gar::rec::CaloHit> hitPtr = *iter;
                    const gar::rec::CaloHit *hit = hitPtr.get();
                    m_CaloHitVec.push_back( const_cast<gar::rec::CaloHit *>(hit) );
                    //update the hit art ptr map
                    hitMaptoArtPtr.insert( std::make_pair(hit, hitPtr) );
                }

                return;
            }

void gar::rec::alg::KNNClusterAlg::reconfigure

(

fhicl::ParameterSet const &

pset

)

Definition at line 35 of file KNNClusterAlg.cxx.

            {
                fClusterAlgName = pset.get<std::string>("ClusterAlgName");

                //Algorithm parameters
                m_EnergyCut = pset.get<float>("EnergyCut", 0.);
                m_DistanceCut = pset.get<float>("DistanceCut", 5.f);

                return;
            }

bool gar::rec::alg::KNNClusterAlg::usesTracks ( )

inline

Definition at line 49 of file KNNClusterAlg.h.

{return false;}

Member Data Documentation

ClusterVec gar::rec::alg::KNNClusterAlg::clusterVector

private

Definition at line 69 of file KNNClusterAlg.h.

std::string gar::rec::alg::KNNClusterAlg::fClusterAlgName

private

Definition at line 63 of file KNNClusterAlg.h.

gar::geo::GeometryCore const* gar::rec::alg::KNNClusterAlg::fGeo

private

geometry information

Definition at line 61 of file KNNClusterAlg.h.

CaloHitVec gar::rec::alg::KNNClusterAlg::m_CaloHitVec

private

Definition at line 67 of file KNNClusterAlg.h.

float gar::rec::alg::KNNClusterAlg::m_DistanceCut

private

Definition at line 65 of file KNNClusterAlg.h.

float gar::rec::alg::KNNClusterAlg::m_EnergyCut

private

Definition at line 64 of file KNNClusterAlg.h.

TrackVec gar::rec::alg::KNNClusterAlg::m_TrackVec

private

Definition at line 68 of file KNNClusterAlg.h.

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

• garsoft/RecoAlg/KNNClusterAlg.h
• garsoft/RecoAlg/KNNClusterAlg.cxx