TrackerRecHit Class Reference

#include <TrackerRecHit.h>

Public Member Functions
unsigned int	cylinderNumber () const
	The global layer number in the nested cylinder geometry. More...
const GeomDet *	geomDet () const
	The GeomDet. More...
GlobalPoint	globalPosition () const
	The global position. More...
const GSSiTrackerRecHit2DLocalPos *	hit () const
void	init (const TrackerGeometry *theGeometry, const TrackerTopology *tTopo)
	Initialization at construction time. More...
bool	isForward () const
	Is it a forward hit ? More...
bool	isOnRequestedDet (const std::vector< unsigned int > &whichDet, const std::string &seedingAlgo) const
	Check if the hit is on one of the requested detector. More...
bool	isOnRequestedDet (const std::vector< std::vector< TrajectorySeedProducer::LayerSpec > > &theLayersInSets) const
	request check with 1, 2 and 3 seeds More...
bool	isOnRequestedDet (const std::vector< std::vector< TrajectorySeedProducer::LayerSpec > > &theLayersInSets, const TrackerRecHit &theSeedHitSecond) const
bool	isOnRequestedDet (const std::vector< std::vector< TrajectorySeedProducer::LayerSpec > > &theLayersInSets, const TrackerRecHit &theSeedHitSecond, const TrackerRecHit &theSeedHitThird) const
bool	isOnTheSameLayer (const TrackerRecHit &other) const
	Check if two hits are on the same layer of the same subdetector. More...
double	largerError ()
unsigned int	layerNumber () const
	The Layer Number. More...
double	localError ()
LocalPoint	localPosition () const
	The local position. More...
bool	makesAPairWith (const TrackerRecHit &anotherHit) const
	Check if a pair is on the proper combination of detectors. More...
bool	makesAPairWith3rd (const TrackerRecHit &anotherHit) const
bool	makesATripletWith (const TrackerRecHit &anotherHit, const TrackerRecHit &yetAnotherHit) const
	Check if a triplet is on the proper combination of detectors. More...
const SiTrackerGSMatchedRecHit2D *	matchedHit () const
	The Hit itself. More...
bool	operator!= (const TrackerRecHit &aHit) const
unsigned int	ringNumber () const
	The Ring Number. More...
const SiTrackerGSRecHit2D *	splitHit () const
unsigned int	subDetId () const
	The subdet Id. More...
	TrackerRecHit ()
	Default Constructor. More...
	TrackerRecHit (const SiTrackerGSRecHit2D *theSplitHit, const TrackerRecHit &other)
	Soft Copy Constructor from private members. More...
	TrackerRecHit (const SiTrackerGSRecHit2D *theHit, const TrackerGeometry *theGeometry, const TrackerTopology *tTopo)
	Constructor from a GSRecHit and the Geometry. More...
	TrackerRecHit (const SiTrackerGSMatchedRecHit2D *theHit, const TrackerGeometry *theGeometry, const TrackerTopology *tTopo)

Private Attributes
bool	forward
unsigned int	theCylinderNumber
const GeomDet *	theGeomDet
double	theLargerError
unsigned int	theLayerNumber
double	theLocalError
const SiTrackerGSMatchedRecHit2D *	theMatchedHit
unsigned int	theRingNumber
const SiTrackerGSRecHit2D *	theSplitHit
unsigned int	theSubDetId

Detailed Description

A class that gives some properties of the Tracker Layers in FAMOS

Definition at line 25 of file TrackerRecHit.h.

Constructor & Destructor Documentation

TrackerRecHit::TrackerRecHit ( )

inline

Default Constructor.

Definition at line 29 of file TrackerRecHit.h.

                  :
    theSplitHit(0),
    theMatchedHit(0),
    theGeomDet(0),
    theSubDetId(0),
    theLayerNumber(0),
    theRingNumber(0), 
    theCylinderNumber(0), 
    theLocalError(0.),
    theLargerError(0.),
    forward(false) {}

TrackerRecHit::TrackerRecHit ( const SiTrackerGSRecHit2D *  theSplitHit, const TrackerRecHit &  other  )

inline

Soft Copy Constructor from private members.

Definition at line 42 of file TrackerRecHit.h.

                                      : 
    theSplitHit(theSplitHit),
    theMatchedHit(0),
    theGeomDet(other.geomDet()),
    theSubDetId(other.subDetId()),
    theLayerNumber(other.layerNumber()),
    theRingNumber(other.ringNumber()), 
    theCylinderNumber(other.cylinderNumber()), 
    theLocalError(0.),
    theLargerError(0.),
    forward(other.isForward()) {}

TrackerRecHit::TrackerRecHit	(	const SiTrackerGSRecHit2D *	theHit,
		const TrackerGeometry *	theGeometry,
		const TrackerTopology *	tTopo
	)

Constructor from a GSRecHit and the Geometry.

Definition at line 20 of file TrackerRecHit.cc.

References init().

                                                :
  theSplitHit(theHit),
  theMatchedHit(0),
  theSubDetId(0),
  theLayerNumber(0),
  theRingNumber(0),
  theCylinderNumber(0),
  theLocalError(0.),
  theLargerError(0.)
     
{ 
  init(theGeometry,tTopo);
}

TrackerRecHit::TrackerRecHit	(	const SiTrackerGSMatchedRecHit2D *	theHit,
		const TrackerGeometry *	theGeometry,
		const TrackerTopology *	tTopo
	)

Definition at line 4 of file TrackerRecHit.cc.

References init().

                                               :
  theSplitHit(0),
  theMatchedHit(theHit),
  theSubDetId(0),
  theLayerNumber(0),
  theRingNumber(0),
  theCylinderNumber(0),
  theLocalError(0.),
  theLargerError(0.)
     
{ 
  init(theGeometry, tTopo);
}

Member Function Documentation

unsigned int TrackerRecHit::cylinderNumber ( ) const

inline

The global layer number in the nested cylinder geometry.

Definition at line 90 of file TrackerRecHit.h.

References theCylinderNumber.

Referenced by FastPixelHitMatcher::isASeed().

{ return theCylinderNumber; }

const GeomDet* TrackerRecHit::geomDet ( ) const

inline

The GeomDet.

Definition at line 96 of file TrackerRecHit.h.

References theGeomDet.

Referenced by operator!=().

{ return theGeomDet; }

GlobalPoint TrackerRecHit::globalPosition ( ) const

inline

The global position.

Definition at line 99 of file TrackerRecHit.h.

References hit(), localPosition(), GeomDet::surface(), theGeomDet, and Surface::toGlobal().

Referenced by FastPixelHitMatcher::isASeed(), and TrajectorySeedProducer::produce().

                                            { 
    return theGeomDet->surface().toGlobal(hit()->localPosition());
  }

const GSSiTrackerRecHit2DLocalPos* TrackerRecHit::hit ( void  ) const

inline

Definition at line 76 of file TrackerRecHit.h.

References theMatchedHit, and theSplitHit.

Referenced by globalPosition(), init(), largerError(), localError(), localPosition(), operator!=(), and FastTSGFromPropagation::trackerSeeds().

                                                        { 
    return theSplitHit ? (GSSiTrackerRecHit2DLocalPos*)theSplitHit : 
      (GSSiTrackerRecHit2DLocalPos*)theMatchedHit; }

void TrackerRecHit::init	(	const TrackerGeometry *	theGeometry,
		const TrackerTopology *	tTopo
	)

Initialization at construction time.

Definition at line 37 of file TrackerRecHit.cc.

References forward, TrackingRecHit::geographicalId(), hit(), TrackerGeometry::idToDet(), PixelSubdetector::PixelBarrel, PixelSubdetector::PixelEndcap, TrackerInteractionGeometry::PXB, TrackerTopology::pxbLayer(), TrackerInteractionGeometry::PXD, TrackerTopology::pxfDisk(), DetId::subdetId(), StripSubdetector::TEC, TrackerInteractionGeometry::TEC, TrackerTopology::tecRing(), TrackerTopology::tecWheel(), theCylinderNumber, theGeomDet, theLayerNumber, theRingNumber, theSubDetId, StripSubdetector::TIB, TrackerInteractionGeometry::TIB, TrackerTopology::tibLayer(), StripSubdetector::TID, TrackerInteractionGeometry::TID, TrackerTopology::tidRing(), TrackerTopology::tidWheel(), StripSubdetector::TOB, TrackerInteractionGeometry::TOB, and TrackerTopology::tobLayer().

Referenced by TrackerRecHit().

                                                                                    { 

  const DetId& theDetId = hit()->geographicalId();
  theGeomDet = theGeometry->idToDet(theDetId);
  theSubDetId = theDetId.subdetId(); 
  if ( theSubDetId == StripSubdetector::TIB) { 
     
    theLayerNumber = tTopo->tibLayer(theDetId);
    theCylinderNumber = TrackerInteractionGeometry::TIB+theLayerNumber;
    forward = false;
  } else if ( theSubDetId ==  StripSubdetector::TOB ) { 
     
    theLayerNumber = tTopo->tobLayer(theDetId);
    theCylinderNumber = TrackerInteractionGeometry::TOB+theLayerNumber;
    forward = false;
  } else if ( theSubDetId ==  StripSubdetector::TID) { 
    
    theLayerNumber = tTopo->tidWheel(theDetId);
    theCylinderNumber = TrackerInteractionGeometry::TID+theLayerNumber;
    theRingNumber = tTopo->tidRing(theDetId);
    forward = true;
  } else if ( theSubDetId ==  StripSubdetector::TEC ) { 
     
    theLayerNumber = tTopo->tecWheel(theDetId); 
    theCylinderNumber = TrackerInteractionGeometry::TEC+theLayerNumber;
    theRingNumber = tTopo->tecRing(theDetId);
    forward = true;
  } else if ( theSubDetId ==  PixelSubdetector::PixelBarrel ) { 
     
    theLayerNumber = tTopo->pxbLayer(theDetId); 
    theCylinderNumber = TrackerInteractionGeometry::PXB+theLayerNumber;
    forward = false;
  } else if ( theSubDetId ==  PixelSubdetector::PixelEndcap ) { 
     
    theLayerNumber = tTopo->pxfDisk(theDetId);  
    theCylinderNumber = TrackerInteractionGeometry::PXD+theLayerNumber;
    forward = true;
  }
  
}

bool TrackerRecHit::isForward ( ) const

inline

Is it a forward hit ?

Definition at line 93 of file TrackerRecHit.h.

References forward.

Referenced by TrajectorySeedProducer::produce().

{ return forward; }

bool TrackerRecHit::isOnRequestedDet	(	const std::vector< unsigned int > &	whichDet,
		const std::string &	seedingAlgo
	)		const

Check if the hit is on one of the requested detector.

Definition at line 114 of file TrackerRecHit.cc.

References gather_cfg::cout, theLayerNumber, theRingNumber, and theSubDetId.

Referenced by TrajectorySeedProducer::produce().

                                                                                                           { 
  
  bool isOnDet = false;
  
  for ( unsigned idet=0; idet<whichDet.size(); ++idet ) {
    
    switch ( whichDet[idet] ) { 
      
    case 1: 
      //Pixel Barrel
      isOnDet =  theSubDetId==1;
      break;
      
    case 2: 
      //Pixel Disks
      isOnDet = theSubDetId==2;
      break;
      
    case 3:
      //Inner Barrel
      isOnDet = theSubDetId==3 && theLayerNumber < 4;
      break;
      
    case 4:
      //Inner Disks
      isOnDet = theSubDetId==4 && theRingNumber < 3;
      break;
      
    case 5:
      //Outer Barrel
      if(seedingAlgo == "TobTecLayerPairs"){
    isOnDet = theSubDetId==5 && theLayerNumber <3;
      }else {
    isOnDet = false;
      }
      break;
      
    case 6:
      //Tracker EndCap
      if(seedingAlgo == "PixelLessPairs"){
    isOnDet = theSubDetId==6 && theLayerNumber < 6 && theRingNumber < 3;
      }else if (seedingAlgo == "TobTecLayerPairs"){
    //  isOnDet = theSubDetId==6 && theLayerNumber < 8 && theRingNumber < 5;
    isOnDet = theSubDetId==6 && theLayerNumber < 8 && theRingNumber == 5;
      } else if (seedingAlgo == "MixedTriplets"){ 
    //  isOnDet = theSubDetId==6 && theLayerNumber == 2 && theRingNumber == 1;
    isOnDet = theSubDetId==6 && theLayerNumber < 4 && theRingNumber == 1;
      } else {
    isOnDet = theSubDetId==6;
    std::cout << "DEBUG - this should never happen" << std::endl;
      }

      break;
      
    default:
      // Should not happen
      isOnDet = false;
      break;
      
    }
    
    if ( isOnDet ) break;
    
  }
  
  return isOnDet;
}

bool TrackerRecHit::isOnRequestedDet

(

const std::vector< std::vector< TrajectorySeedProducer::LayerSpec > > &

theLayersInSets

)

const

request check with 1, 2 and 3 seeds

Definition at line 79 of file TrackerRecHit.cc.

References i, theLayerNumber, and theSubDetId.

                                                                                                                  { 
  
  for(unsigned int i=0; i<theLayersInSets.size(); ++i) {
    if(theLayersInSets[i][0].subDet==theSubDetId && theLayersInSets[i][0].idLayer==theLayerNumber) return true;
  }

  return false;
}

bool TrackerRecHit::isOnRequestedDet	(	const std::vector< std::vector< TrajectorySeedProducer::LayerSpec > > &	theLayersInSets,
		const TrackerRecHit &	theSeedHitSecond
	)		const

Definition at line 89 of file TrackerRecHit.cc.

References i, layerNumber(), subDetId(), theLayerNumber, and theSubDetId.

                                                                                                                                                          { 

  for(unsigned int i=0; i<theLayersInSets.size(); ++i){
    if( theLayersInSets[i][0].subDet==theSubDetId && theLayersInSets[i][0].idLayer==theLayerNumber &&
        theLayersInSets[i][1].subDet==theSeedHitSecond.subDetId() && theLayersInSets[i][1].idLayer==theSeedHitSecond.layerNumber()
      ) return true;
  }
  return false;
}

bool TrackerRecHit::isOnRequestedDet	(	const std::vector< std::vector< TrajectorySeedProducer::LayerSpec > > &	theLayersInSets,
		const TrackerRecHit &	theSeedHitSecond,
		const TrackerRecHit &	theSeedHitThird
	)		const

Definition at line 100 of file TrackerRecHit.cc.

References i, layerNumber(), subDetId(), theLayerNumber, and theSubDetId.

                                                                                                                                                                                                { 

  for(unsigned int i=0; i<theLayersInSets.size(); ++i){
    if( theLayersInSets[i][0].subDet==theSubDetId && theLayersInSets[i][0].idLayer==theLayerNumber &&
        theLayersInSets[i][1].subDet==theSeedHitSecond.subDetId() && theLayersInSets[i][1].idLayer==theSeedHitSecond.layerNumber() &&
        theLayersInSets[i][2].subDet==theSeedHitThird.subDetId() && theLayersInSets[i][2].idLayer==theSeedHitThird.layerNumber() 
      ) return true;
  }
  return false;
}

bool TrackerRecHit::isOnTheSameLayer ( const TrackerRecHit &  other ) const

inline

Check if two hits are on the same layer of the same subdetector.

Definition at line 122 of file TrackerRecHit.h.

References layerNumber(), subDetId(), theLayerNumber, and theSubDetId.

Referenced by FastPixelHitMatcher::isASeed(), TrajectorySeedProducer::produce(), and TrackCandidateProducer::produce().

                                                                 {
    
    return 
      theSubDetId == other.subDetId() && 
      theLayerNumber == other.layerNumber();
  }

double TrackerRecHit::largerError ( )

inline

Definition at line 146 of file TrackerRecHit.h.

References delta, hit(), BaseTrackerRecHit::localPositionError(), mathSSE::sqrt(), theLargerError, LocalError::xx(), LocalError::xy(), create_public_lumi_plots::xy, and LocalError::yy().

Referenced by TrajectorySeedProducer::produce().

                       { 

    // Check if it has been already computed
    if ( theLargerError != 0. ) return theLargerError;

    // Otherwise, compute it!
    double xx = hit()->localPositionError().xx();
    double yy = hit()->localPositionError().yy();
    double xy = hit()->localPositionError().xy();
    double delta = std::sqrt((xx-yy)*(xx-yy)+4.*xy*xy);
    theLargerError = 0.5 * (xx+yy+delta);
    return theLargerError;

  }

unsigned int TrackerRecHit::layerNumber ( ) const

inline

The Layer Number.

Definition at line 84 of file TrackerRecHit.h.

References theLayerNumber.

Referenced by isOnRequestedDet(), isOnTheSameLayer(), TrajectorySeedProducer::produce(), TrackCandidateProducer::produce(), and FastElectronSeedGenerator::run().

{ return theLayerNumber; }

double TrackerRecHit::localError ( )

inline

Definition at line 130 of file TrackerRecHit.h.

References delta, hit(), BaseTrackerRecHit::localPositionError(), mathSSE::sqrt(), theLocalError, LocalError::xx(), LocalError::xy(), create_public_lumi_plots::xy, and LocalError::yy().

Referenced by TrackCandidateProducer::produce().

                      { 

    // Check if it has been already computed
    if ( theLocalError != 0. ) return theLocalError;

    // Otherwise, compute it!
    double xx = hit()->localPositionError().xx();
    double yy = hit()->localPositionError().yy();
    double xy = hit()->localPositionError().xy();
    double delta = std::sqrt((xx-yy)*(xx-yy)+4.*xy*xy);
    theLocalError = 0.5 * (xx+yy-delta);
    return theLocalError;

  }

LocalPoint TrackerRecHit::localPosition ( ) const

inline

The local position.

Definition at line 104 of file TrackerRecHit.h.

References hit(), and BaseTrackerRecHit::localPosition().

Referenced by globalPosition().

{ return hit()->localPosition(); }  

bool TrackerRecHit::makesAPairWith

(

const TrackerRecHit &

anotherHit

)

const

Check if a pair is on the proper combination of detectors.

bool TrackerRecHit::makesAPairWith3rd

(

const TrackerRecHit &

anotherHit

)

const

bool TrackerRecHit::makesATripletWith	(	const TrackerRecHit &	anotherHit,
		const TrackerRecHit &	yetAnotherHit
	)		const

Check if a triplet is on the proper combination of detectors.

const SiTrackerGSMatchedRecHit2D* TrackerRecHit::matchedHit ( ) const

inline

The Hit itself.

Definition at line 73 of file TrackerRecHit.h.

References theMatchedHit.

Referenced by TrackCandidateProducer::addSplitHits(), and TrackCandidateProducer::produce().

{ return theMatchedHit; }

bool TrackerRecHit::operator!= ( const TrackerRecHit &  aHit ) const

inline

Definition at line 161 of file TrackerRecHit.h.

References geomDet(), hit(), BaseTrackerRecHit::localPosition(), PV3DBase< T, PVType, FrameType >::x(), PV3DBase< T, PVType, FrameType >::y(), and PV3DBase< T, PVType, FrameType >::z().

                                                          {
    return 
      aHit.geomDet() != this->geomDet() ||
      aHit.hit()->localPosition().x() != this->hit()->localPosition().x() ||
      aHit.hit()->localPosition().y() != this->hit()->localPosition().y() ||
      aHit.hit()->localPosition().z() != this->hit()->localPosition().z();
  }

unsigned int TrackerRecHit::ringNumber ( ) const

inline

The Ring Number.

Definition at line 87 of file TrackerRecHit.h.

References theRingNumber.

Referenced by FastElectronSeedGenerator::run().

{ return theRingNumber; }

const SiTrackerGSRecHit2D* TrackerRecHit::splitHit ( ) const

inline

Definition at line 74 of file TrackerRecHit.h.

References theSplitHit.

{ return theSplitHit; }

unsigned int TrackerRecHit::subDetId ( ) const

inline

The subdet Id.

Definition at line 81 of file TrackerRecHit.h.

References theSubDetId.

Referenced by FastPixelHitMatcher::isASeed(), isOnRequestedDet(), isOnTheSameLayer(), TrackCandidateProducer::produce(), TrajectorySeedProducer::produce(), and FastElectronSeedGenerator::run().

{ return theSubDetId; }

Member Data Documentation

bool TrackerRecHit::forward

private

Definition at line 180 of file TrackerRecHit.h.

Referenced by init(), and isForward().

unsigned int TrackerRecHit::theCylinderNumber

private

Definition at line 177 of file TrackerRecHit.h.

Referenced by cylinderNumber(), and init().

const GeomDet* TrackerRecHit::theGeomDet

private

Definition at line 173 of file TrackerRecHit.h.

Referenced by geomDet(), globalPosition(), and init().

double TrackerRecHit::theLargerError

private

Definition at line 179 of file TrackerRecHit.h.

Referenced by largerError().

unsigned int TrackerRecHit::theLayerNumber

private

Definition at line 175 of file TrackerRecHit.h.

Referenced by init(), isOnRequestedDet(), isOnTheSameLayer(), and layerNumber().

double TrackerRecHit::theLocalError

private

Definition at line 178 of file TrackerRecHit.h.

Referenced by localError().

const SiTrackerGSMatchedRecHit2D* TrackerRecHit::theMatchedHit

private

Definition at line 172 of file TrackerRecHit.h.

Referenced by hit(), and matchedHit().

unsigned int TrackerRecHit::theRingNumber

private

Definition at line 176 of file TrackerRecHit.h.

Referenced by init(), isOnRequestedDet(), and ringNumber().

const SiTrackerGSRecHit2D* TrackerRecHit::theSplitHit

private

Definition at line 171 of file TrackerRecHit.h.

Referenced by hit(), and splitHit().

unsigned int TrackerRecHit::theSubDetId

private

Definition at line 174 of file TrackerRecHit.h.

Referenced by init(), isOnRequestedDet(), isOnTheSameLayer(), and subDetId().