Particle flow rechit (rechit + geometry and topology information). See clustering algorithm in PFClusterAlgo. More...

#include <PFRecHit.h>

Public Types
enum	{ NONE = 0 }
typedef ROOT::Math::PositionVector3D < ROOT::Math::CylindricalEta3D < Double32_t > >	REPPoint
typedef std::vector< REPPoint >	REPPointVector
Public Member Functions
void	add4Neighbour (unsigned index)
void	add8Neighbour (unsigned index)
void	calculatePositionREP ()
	calculates rho eta phi position once and for all
void	clearNeighbours ()
unsigned	detId () const
	rechit detId
double	energy () const
	rechit energy
double	energyUp () const
	For HF hits: rechit energy (and neighbour's) in the other HF layer.
const math::XYZVector &	getAxisXYZ () const
	rechit cell axis x, y, z
const REPPointVector &	getCornersREP () const
	rechit corners
const std::vector < math::XYZPoint > &	getCornersXYZ () const
	rechit corners
bool	isNeighbour4 (unsigned id) const
bool	isNeighbour8 (unsigned id) const
PFLayer::Layer	layer () const
	rechit layer
const std::vector< unsigned > &	neighbours4 () const
const std::vector< unsigned > &	neighbours8 () const
const std::vector< unsigned > &	neighboursIds4 () const
const std::vector< unsigned > &	neighboursIds8 () const
bool	operator< (const PFRecHit &rhs) const
	comparison < operator
bool	operator<= (const PFRecHit &rhs) const
	comparison <= operator
bool	operator> (const PFRecHit &rhs) const
	comparison > operator
bool	operator>= (const PFRecHit &rhs) const
	comparison >= operator
	PFRecHit (unsigned detId, PFLayer::Layer layer, double energy, const math::XYZPoint &posxyz, const math::XYZVector &axisxyz, const std::vector< math::XYZPoint > &cornersxyz)
	constructor from values
	PFRecHit (const PFRecHit &other)
	copy
	PFRecHit (unsigned detId, PFLayer::Layer layer, double energy, double posx, double posy, double posz, double axisx, double axisy, double axisz)
	PFRecHit ()
	default constructor. Sets energy and position to zero
const math::XYZPoint &	position () const
	is seed ?
const REPPoint &	positionREP () const
	rechit cell centre rho, eta, phi. call calculatePositionREP before !
double	pt2 () const
	rechit momentum transverse to the beam, squared.
double	rescale () const
	rescaling factor (obsolete)
void	setEnergyUp (double eUp)
void	setNECorner (double posx, double posy, double posz)
void	setNWCorner (double posx, double posy, double posz)
	search for pointers to neighbours, using neighbours' DetId.
void	setRescale (double factor)
void	setSECorner (double posx, double posy, double posz)
void	setSWCorner (double posx, double posy, double posz)
void	size (double &deta, double &dphi) const
double	time () const
	timing for cleaned hits
virtual	~PFRecHit ()
	destructor
Private Member Functions
void	setCorner (unsigned i, double posx, double posy, double posz)
	set position of one of the corners
Private Attributes
math::XYZVector	axisxyz_
	rechit cell axisxyz
REPPointVector	cornersrep_
std::vector< math::XYZPoint >	cornersxyz_
	rechit cell corners
unsigned	detId_
	C cell detid - should be detid or index in collection ?
double	energy_
	rechit energy
double	energyUp_
	For HF hits : hit energy in the other layer (EM for HAD, and HAD for EM)
PFLayer::Layer	layer_
	rechit layer
std::vector< unsigned >	neighbours4_
	indices to existing neighbours (1 common side)
std::vector< unsigned >	neighbours8_
	indices to existing neighbours (1 common side or diagonal)
std::vector< unsigned >	neighboursIds4_
	detids of existing neighbours (1 common side)
std::vector< unsigned >	neighboursIds8_
	detids of existing neighbours (1 common side or diagonal)
math::XYZPoint	position_
	is this a seed ? (-1:unknown, 0:no, 1 yes) (transient)
REPPoint	posrep_
	rechit cell centre: rho, eta, phi (transient)
double	rescale_
	Internal rescaling factor of the energy (1. = default, 0 = killed channels, x = rescaled)
Static Private Attributes
static const unsigned	nCorners_ = 4
	number of corners
static const unsigned	nNeighbours_ = 8
	number of neighbours
Friends
std::ostream &	operator<< (std::ostream &out, const reco::PFRecHit &hit)

Detailed Description

Particle flow rechit (rechit + geometry and topology information). See clustering algorithm in PFClusterAlgo.

Author:: Colin Bernet

Date:: July 2006

Definition at line 31 of file PFRecHit.h.

Member Typedef Documentation

typedef ROOT::Math::PositionVector3D<ROOT::Math::CylindricalEta3D<Double32_t> > reco::PFRecHit::REPPoint

Definition at line 39 of file PFRecHit.h.

typedef std::vector<REPPoint> reco::PFRecHit::REPPointVector

Definition at line 41 of file PFRecHit.h.

Member Enumeration Documentation

anonymous enum

Enumerator:

NONE

Definition at line 35 of file PFRecHit.h.

         {
      NONE=0
    };

Constructor & Destructor Documentation

PFRecHit::PFRecHit ( )

default constructor. Sets energy and position to zero

Definition at line 9 of file PFRecHit.cc.

References cornersrep_, cornersxyz_, reco::tau::disc::Eta(), i, nCorners_, colinearityKinematic::Phi, and position_.

                   : 
  detId_(0),
  layer_(PFLayer::NONE),
  energy_(0.), 
  rescale_(1.),
  energyUp_(0.),
  // seedState_(-1), 
  position_(math::XYZPoint(0.,0.,0.)),
  posrep_(REPPoint(0.,0.,0.)) {

  cornersxyz_.reserve( nCorners_ );
  for(unsigned i=0; i<nCorners_; i++) { 
    cornersxyz_.push_back( position_ );    
  }

  cornersrep_.reserve( nCorners_ );
  for ( unsigned i=0; i<nCorners_; ++i ) {
    cornersrep_.push_back( 
      REPPoint(cornersxyz_[i].Rho(),
               cornersxyz_[i].Eta(),
               cornersxyz_[i].Phi() ) );
  }

}

reco::PFRecHit::PFRecHit	(	unsigned	detId,
		PFLayer::Layer	layer,
		double	energy,
		const math::XYZPoint &	posxyz,
		const math::XYZVector &	axisxyz,
		const std::vector< math::XYZPoint > &	cornersxyz
	)

constructor from values

PFRecHit::PFRecHit	(	unsigned	detId,
		PFLayer::Layer	layer,
		double	energy,
		double	posx,
		double	posy,
		double	posz,
		double	axisx,
		double	axisy,
		double	axisz
	)

Definition at line 61 of file PFRecHit.cc.

References cornersrep_, cornersxyz_, reco::tau::disc::Eta(), i, nCorners_, colinearityKinematic::Phi, and position_.

                                                             :

  detId_(detId),
  layer_(layer),
  energy_(energy), 
  rescale_(1.),
  energyUp_(0.),
  // seedState_(-1), 
  position_(posx, posy, posz),
  posrep_( position_.Rho(), 
           position_.Eta(), 
           position_.Phi() ),  
  axisxyz_(axisx, axisy, axisz) {
  

  cornersxyz_.reserve( nCorners_ );
  for(unsigned i=0; i<nCorners_; i++) { 
    cornersxyz_.push_back( position_ );    
  } 

  cornersrep_.reserve( nCorners_ );
  for ( unsigned i=0; i<nCorners_; ++i ) {
    cornersrep_.push_back( 
      REPPoint(cornersxyz_[i].Rho(),
               cornersxyz_[i].Eta(),
               cornersxyz_[i].Phi() ) );
  }
 
}

PFRecHit::PFRecHit ( const PFRecHit & other )

copy

Definition at line 96 of file PFRecHit.cc.

                                        :
  detId_(other.detId_), 
  layer_(other.layer_), 
  energy_(other.energy_), 
  rescale_(other.rescale_), 
  energyUp_(other.energyUp_),
  // seedState_(other.seedState_),
  position_(other.position_), 
  posrep_(other.posrep_),
  axisxyz_(other.axisxyz_),
  cornersxyz_(other.cornersxyz_),
  cornersrep_(other.cornersrep_),
  //   neighbours_(other.neighbours_),
  neighbours4_(other.neighbours4_),
  neighbours8_(other.neighbours8_),
  neighboursIds4_(other.neighboursIds4_),
  neighboursIds8_(other.neighboursIds8_)
{}

PFRecHit::~PFRecHit ( ) [virtual]

destructor

Definition at line 116 of file PFRecHit.cc.

{}

Member Function Documentation

void PFRecHit::add4Neighbour ( unsigned index )

Definition at line 176 of file PFRecHit.cc.

References neighbours4_, and neighbours8_.

Referenced by PFRecHitProducerPS::findRecHitNeighbours(), PFRecHitProducerHCAL::findRecHitNeighboursCT(), PFRecHitProducerECAL::findRecHitNeighboursECAL(), PFRecHitProducerHO::findRecHitNeighboursHO(), and PFRootEventManager::setRecHitNeigbours().

                                           {
  neighbours4_.push_back( index );
  neighbours8_.push_back( index );
}

void PFRecHit::add8Neighbour ( unsigned index )

Definition at line 181 of file PFRecHit.cc.

References neighbours8_.

Referenced by PFRecHitProducerPS::findRecHitNeighbours(), PFRecHitProducerHCAL::findRecHitNeighboursCT(), PFRecHitProducerECAL::findRecHitNeighboursECAL(), PFRecHitProducerHO::findRecHitNeighboursHO(), and PFRootEventManager::setRecHitNeigbours().

                                           {
  neighbours8_.push_back( index );
}

void PFRecHit::calculatePositionREP ( )

calculates rho eta phi position once and for all

Definition at line 130 of file PFRecHit.cc.

References cornersrep_, cornersxyz_, reco::tau::disc::Eta(), i, nCorners_, colinearityKinematic::Phi, position_, and posrep_.

                               {
  posrep_.SetCoordinates( position_.Rho(),  position_.Eta(),  position_.Phi() );
  for ( unsigned i=0; i<nCorners_; ++i ) {
    cornersrep_[i].SetCoordinates(cornersxyz_[i].Rho(),cornersxyz_[i].Eta(),cornersxyz_[i].Phi() );
  }
}

void reco::PFRecHit::clearNeighbours ( ) [inline]

Definition at line 76 of file PFRecHit.h.

References neighbours4_, and neighbours8_.

Referenced by PFRootEventManager::setRecHitNeigbours().

                           {
      neighbours4_.clear();
      neighbours8_.clear();
      neighbours4_.reserve(4);
      neighbours8_.reserve(8);    
    }

unsigned reco::PFRecHit::detId ( ) const [inline]

rechit detId

Definition at line 99 of file PFRecHit.h.

References detId_.

Referenced by PFClusterAlgo::calculateClusterPosition(), PFClusterAlgo::cleanRBXAndHPD(), PFRecHitProducerPS::findRecHitNeighbours(), PFRecHitProducerHCAL::findRecHitNeighboursCT(), PFRecHitProducerECAL::findRecHitNeighboursECAL(), PFRecHitProducerHO::findRecHitNeighboursHO(), and PFRootEventManager::mcTruthMatching().

{return detId_;}

double reco::PFRecHit::energy ( ) const [inline]

rechit energy

Definition at line 105 of file PFRecHit.h.

References energy_.

Referenced by PFClusterAlgo::buildTopoCluster(), PFClusterAlgo::calculateClusterPosition(), PFAlgo::checkCleaning(), PFClusterAlgo::cleanRBXAndHPD(), DisplayManager::createGRecHit(), PFClusterAlgo::findSeeds(), GPFRecHit::GPFRecHit(), PFRootEventManager::mcTruthMatching(), PFRootEventManager::printRecHit(), and LinkByRecHit::testTrackAndClusterByRecHit().

{ return energy_; }

double reco::PFRecHit::energyUp ( ) const [inline]

For HF hits: rechit energy (and neighbour's) in the other HF layer.

Definition at line 114 of file PFRecHit.h.

References energyUp_.

Referenced by PFClusterAlgo::findSeeds().

{ return energyUp_; }

const math::XYZVector& reco::PFRecHit::getAxisXYZ ( ) const [inline]

rechit cell axis x, y, z

Definition at line 141 of file PFRecHit.h.

References axisxyz_.

Referenced by PFClusterAlgo::calculateClusterPosition().

{ return axisxyz_; }

const REPPointVector& reco::PFRecHit::getCornersREP ( ) const [inline]

rechit corners

Definition at line 148 of file PFRecHit.h.

References cornersrep_.

Referenced by LinkByRecHit::testTrackAndClusterByRecHit().

      { return cornersrep_; }

const std::vector< math::XYZPoint >& reco::PFRecHit::getCornersXYZ ( ) const [inline]

rechit corners

Definition at line 144 of file PFRecHit.h.

References cornersxyz_.

Referenced by DisplayManager::createGRecHit(), LinkByRecHit::testECALAndPSByRecHit(), and LinkByRecHit::testTrackAndClusterByRecHit().

      { return cornersxyz_; }

bool PFRecHit::isNeighbour4 ( unsigned id ) const

is rechit 'id' a direct neighbour of this ? id is the rechit index ! not the detId

Definition at line 248 of file PFRecHit.cc.

References i, and neighbours4_.

Referenced by PFClusterAlgo::calculateClusterPosition().

                                             {

  for(unsigned i=0; i<neighbours4_.size(); i++ )
    if( id == neighbours4_[i] ) return true;

  return false;           
}

bool PFRecHit::isNeighbour8 ( unsigned id ) const

is rechit 'id' a neighbour of this ? id is the rechit index ! not the detId

Definition at line 257 of file PFRecHit.cc.

References i, and neighbours8_.

Referenced by PFClusterAlgo::calculateClusterPosition().

                                             {
  
  for(unsigned i=0; i<neighbours8_.size(); i++ )
    if( id == neighbours8_[i] ) return true;

  return false;           
}

PFLayer::Layer reco::PFRecHit::layer ( ) const [inline]

rechit layer

Definition at line 102 of file PFRecHit.h.

References layer_.

Referenced by PFClusterAlgo::buildPFClusters(), PFClusterAlgo::buildTopoCluster(), PFClusterAlgo::calculateClusterPosition(), PFAlgo::checkCleaning(), PFClusterAlgo::cleanRBXAndHPD(), DisplayManager::createGRecHit(), PFRecHitProducerPS::findRecHitNeighbours(), PFRecHitProducerHCAL::findRecHitNeighboursCT(), and PFClusterAlgo::findSeeds().

{ return layer_; }

const std::vector< unsigned >& reco::PFRecHit::neighbours4 ( ) const [inline]

Definition at line 151 of file PFRecHit.h.

References neighbours4_.

Referenced by PFClusterAlgo::buildTopoCluster(), PFClusterAlgo::cleanRBXAndHPD(), and PFClusterAlgo::findSeeds().

      {return neighbours4_;}

const std::vector< unsigned >& reco::PFRecHit::neighbours8 ( ) const [inline]

Definition at line 154 of file PFRecHit.h.

References neighbours8_.

Referenced by PFClusterAlgo::buildTopoCluster(), and PFClusterAlgo::findSeeds().

      {return neighbours8_;}

const std::vector< unsigned >& reco::PFRecHit::neighboursIds4 ( ) const [inline]

Definition at line 157 of file PFRecHit.h.

References neighboursIds4_.

Referenced by PFRootEventManager::setRecHitNeigbours().

      {return neighboursIds4_;}

const std::vector< unsigned >& reco::PFRecHit::neighboursIds8 ( ) const [inline]

Definition at line 160 of file PFRecHit.h.

References neighboursIds8_.

Referenced by PFRootEventManager::setRecHitNeigbours().

      {return neighboursIds8_;}

bool reco::PFRecHit::operator< ( const PFRecHit & rhs ) const [inline]

comparison < operator

Definition at line 190 of file PFRecHit.h.

References energy_.

{ return (energy_< rhs.energy_); }

bool reco::PFRecHit::operator<= ( const PFRecHit & rhs ) const [inline]

comparison <= operator

Definition at line 187 of file PFRecHit.h.

References energy_.

{ return (energy_<=rhs.energy_); }

bool reco::PFRecHit::operator> ( const PFRecHit & rhs ) const [inline]

comparison > operator

Definition at line 184 of file PFRecHit.h.

References energy_.

{ return (energy_> rhs.energy_); }

bool reco::PFRecHit::operator>= ( const PFRecHit & rhs ) const [inline]

comparison >= operator

Definition at line 181 of file PFRecHit.h.

References energy_.

{ return (energy_>=rhs.energy_); }

const math::XYZPoint& reco::PFRecHit::position ( ) const [inline]

is seed ?

Returns:: seed state (-1:unknown, 0:no, 1 yes) set seed status rechit cell centre x, y, z

Definition at line 135 of file PFRecHit.h.

References position_.

Referenced by PFClusterAlgo::buildPFClusters(), KDTreeLinkerPSEcal::buildTree(), PFClusterAlgo::calculateClusterPosition(), PFAlgo::checkCleaning(), PFClusterAlgo::cleanRBXAndHPD(), DisplayManager::createGRecHit(), PFClusterAlgo::findSeeds(), DisplayManager::lookForMaxRecHit(), PFRootEventManager::printRecHit(), LinkByRecHit::testECALAndPSByRecHit(), and LinkByRecHit::testTrackAndClusterByRecHit().

{ return position_; }

const PFRecHit::REPPoint & PFRecHit::positionREP ( ) const

rechit cell centre rho, eta, phi. call calculatePositionREP before !

Definition at line 121 of file PFRecHit.cc.

References posrep_.

Referenced by PFClusterAlgo::buildTopoCluster(), PFClusterAlgo::findSeeds(), and LinkByRecHit::testTrackAndClusterByRecHit().

                            {
  //   if( posrep_ == REPPoint() ) {
  //     posrep_.SetCoordinates( position_.Rho(), position_.Eta(), position_.Phi() );
  //   }
  return posrep_;
}

double reco::PFRecHit::pt2 ( ) const [inline]

rechit momentum transverse to the beam, squared.

Definition at line 117 of file PFRecHit.h.

References energy_, and position_.

Referenced by PFClusterAlgo::buildTopoCluster(), and PFClusterAlgo::findSeeds().

                       { return energy_ * energy_ *
                           ( position_.X()*position_.X() + 
                             position_.Y()*position_.Y() ) / 
                           ( position_.X()*position_.X() +
                             position_.Y()*position_.Y() + 
                             position_.Z()*position_.Z()) ; }

double reco::PFRecHit::rescale ( ) const [inline]

rescaling factor (obsolete)

Definition at line 108 of file PFRecHit.h.

References rescale_.

{ return rescale_; }

void PFRecHit::setCorner	(	unsigned	i,
		double	posx,
		double	posy,
		double	posz
	)		`[private]`

set position of one of the corners

Definition at line 236 of file PFRecHit.cc.

References cornersrep_, cornersxyz_, reco::tau::disc::Eta(), i, nCorners_, and colinearityKinematic::Phi.

Referenced by setNECorner(), setNWCorner(), setSECorner(), and setSWCorner().

                                                                            {
  assert( cornersxyz_.size() == nCorners_);
  assert( cornersrep_.size() == nCorners_);
  assert( i<cornersxyz_.size() );

  cornersxyz_[i] = math::XYZPoint( posx, posy, posz);
  cornersrep_[i] = REPPoint(cornersxyz_[i].Rho(),
                            cornersxyz_[i].Eta(),
                            cornersxyz_[i].Phi() );
}

void reco::PFRecHit::setEnergyUp ( double eUp ) [inline]

Definition at line 73 of file PFRecHit.h.

References energyUp_.

{ energyUp_ = eUp; }

void PFRecHit::setNECorner	(	double	posx,
		double	posy,
		double	posz
	)

Definition at line 231 of file PFRecHit.cc.

References setCorner().

Referenced by PFRecHitProducerECAL::createEcalRecHit(), PFRecHitProducerHCAL::createHcalRecHit(), and PFRecHitProducerHO::createHORecHit().

                                                                  {
  setCorner(3, posx, posy, posz);
}

void PFRecHit::setNWCorner	(	double	posx,
		double	posy,
		double	posz
	)

search for pointers to neighbours, using neighbours' DetId.

pointers to neighbours are not persistent, in contrary to the DetId's of the neighbours. This function searches a map of rechits for the DetId's stored in neighboursIds4_ and neighboursIds8_. The corresponding pointers are stored in neighbours4_ and neighbours8_.

Definition at line 216 of file PFRecHit.cc.

References setCorner().

Referenced by PFRecHitProducerECAL::createEcalRecHit(), PFRecHitProducerHCAL::createHcalRecHit(), and PFRecHitProducerHO::createHORecHit().

                                                                  {
  setCorner(0, posx, posy, posz);
}

void reco::PFRecHit::setRescale ( double factor ) [inline]

Definition at line 74 of file PFRecHit.h.

References rescale_.

Referenced by PFRecHitProducerPS::createRecHits().

{ rescale_ = factor; }

void PFRecHit::setSECorner	(	double	posx,
		double	posy,
		double	posz
	)

Definition at line 226 of file PFRecHit.cc.

References setCorner().

Referenced by PFRecHitProducerECAL::createEcalRecHit(), PFRecHitProducerHCAL::createHcalRecHit(), and PFRecHitProducerHO::createHORecHit().

                                                                  {
  setCorner(2, posx, posy, posz);
}

void PFRecHit::setSWCorner	(	double	posx,
		double	posy,
		double	posz
	)

Definition at line 221 of file PFRecHit.cc.

References setCorner().

Referenced by PFRecHitProducerECAL::createEcalRecHit(), PFRecHitProducerHCAL::createHcalRecHit(), and PFRecHitProducerHO::createHORecHit().

                                                                  {
  setCorner(1, posx, posy, posz);
}

void PFRecHit::size	(	double &	deta,
		double &	dphi
	)		const

Definition at line 266 of file PFRecHit.cc.

References cornersrep_, eta(), and phi.

Referenced by DisplayManager::lookForMaxRecHit().

                                                    {

  double minphi=9999;
  double maxphi=-9999;
  double mineta=9999;
  double maxeta=-9999;
  for ( unsigned ic=0; ic<cornersrep_.size(); ++ic ) { 
    double eta = cornersrep_[ic].Eta();
    double phi = cornersrep_[ic].Phi();
    
    if(phi>maxphi) maxphi=phi;
    if(phi<minphi) minphi=phi;
    if(eta>maxeta) maxeta=eta;
    if(eta<mineta) mineta=eta;    
  }

  deta = maxeta - mineta;
  dphi = maxphi - minphi;
}