DualReferenceTrajectory Class Reference

#include <DualReferenceTrajectory.h>

Inheritance diagram for DualReferenceTrajectory:

Public Types
typedef TransientTrackingRecHit::ConstRecHitContainer	ConstRecHitContainer
Public Types inherited from ReferenceTrajectoryBase
enum	MaterialEffects {   none, multipleScattering, energyLoss, combined,   breakPoints, brokenLinesCoarse, brokenLinesFine }
typedef ReferenceCountingPointer < ReferenceTrajectoryBase >	ReferenceTrajectoryPtr

Public Member Functions
virtual DualReferenceTrajectory *	clone () const
	DualReferenceTrajectory (const TrajectoryStateOnSurface &referenceTsos, const ConstRecHitContainer &forwardRecHits, const ConstRecHitContainer &backwardRecHits, const MagneticField *magField, MaterialEffects materialEffects, PropagationDirection propDir, double mass, bool useBeamSpot, const reco::BeamSpot &beamSpot)
virtual	~DualReferenceTrajectory ()
Public Member Functions inherited from ReferenceTrajectoryBase
const AlgebraicMatrix &	derivatives () const
bool	isValid ()
const AlgebraicMatrix &	localToTrajectory () const
const AlgebraicSymMatrix &	measurementErrors () const
const AlgebraicVector &	measurements () const
unsigned int	numberOfHitMeas () const
unsigned int	numberOfHits () const
unsigned int	numberOfPar () const
unsigned int	numberOfVirtualMeas () const
unsigned int	numberOfVirtualPar () const
const AlgebraicSymMatrix &	parameterErrors () const
bool	parameterErrorsAvailable () const
const AlgebraicVector &	parameters () const
const TransientTrackingRecHit::ConstRecHitContainer &	recHits () const
void	setParameterErrors (const AlgebraicSymMatrix &error)
const AlgebraicSymMatrix &	trajectoryPositionErrors () const
const AlgebraicVector &	trajectoryPositions () const
const std::vector < TrajectoryStateOnSurface > &	trajectoryStates () const
const AlgebraicMatrix &	trajectoryToCurv () const
virtual	~ReferenceTrajectoryBase ()

Protected Member Functions
virtual bool	construct (const TrajectoryStateOnSurface &referenceTsos, const ConstRecHitContainer &forwardRecHits, const ConstRecHitContainer &backwardRecHits, double mass, MaterialEffects materialEffects, const PropagationDirection propDir, const MagneticField *magField, bool useBeamSpot, const reco::BeamSpot &beamSpot)
virtual ReferenceTrajectory *	construct (const TrajectoryStateOnSurface &referenceTsos, const ConstRecHitContainer &recHits, double mass, MaterialEffects materialEffects, const PropagationDirection propDir, const MagneticField *magField, bool useBeamSpot, const reco::BeamSpot &beamSpot) const
	DualReferenceTrajectory (unsigned int nPar, unsigned int nHits)
virtual AlgebraicVector	extractParameters (const TrajectoryStateOnSurface &referenceTsos) const
const PropagationDirection	oppositeDirection (const PropagationDirection propDir) const
Protected Member Functions inherited from ReferenceTrajectoryBase
unsigned int	numberOfUsedRecHits (const TransientTrackingRecHit::ConstRecHitContainer &recHits) const
	ReferenceTrajectoryBase (unsigned int nPar, unsigned int nHits, unsigned int nVirtualPar, unsigned int nVirtualMeas)
bool	useRecHit (const TransientTrackingRecHit::ConstRecHitPointer &hitPtr) const

Additional Inherited Members
Protected Attributes inherited from ReferenceTrajectoryBase
AlgebraicMatrix	theDerivatives
AlgebraicMatrix	theInnerLocalToTrajectory
AlgebraicMatrix	theInnerTrajectoryToCurvilinear
AlgebraicVector	theMeasurements
AlgebraicSymMatrix	theMeasurementsCov
unsigned int	theNumberOfHits
unsigned int	theNumberOfPars
unsigned int	theNumberOfVirtualMeas
unsigned int	theNumberOfVirtualPars
bool	theParamCovFlag
AlgebraicSymMatrix	theParameterCov
AlgebraicVector	theParameters
TransientTrackingRecHit::ConstRecHitContainer	theRecHits
AlgebraicSymMatrix	theTrajectoryPositionCov
AlgebraicVector	theTrajectoryPositions
std::vector < TrajectoryStateOnSurface >	theTsosVec
bool	theValidityFlag
Static Protected Attributes inherited from ReferenceTrajectoryBase
static const unsigned int	nMeasPerHit = 2

Detailed Description

Definition at line 35 of file DualReferenceTrajectory.h.

Member Typedef Documentation

typedef TransientTrackingRecHit::ConstRecHitContainer DualReferenceTrajectory::ConstRecHitContainer

Definition at line 40 of file DualReferenceTrajectory.h.

Constructor & Destructor Documentation

DualReferenceTrajectory::DualReferenceTrajectory	(	const TrajectoryStateOnSurface &	referenceTsos,
		const ConstRecHitContainer &	forwardRecHits,
		const ConstRecHitContainer &	backwardRecHits,
		const MagneticField *	magField,
		MaterialEffects	materialEffects,
		PropagationDirection	propDir,
		double	mass,
		bool	useBeamSpot,
		const reco::BeamSpot &	beamSpot
	)

Definition at line 11 of file DualReferenceTrajectory.cc.

References construct(), and ReferenceTrajectoryBase::theValidityFlag.

Referenced by clone().

  : ReferenceTrajectoryBase(referenceTsos.localParameters().mixedFormatVector().kSize,
                numberOfUsedRecHits(forwardRecHits) + numberOfUsedRecHits(backwardRecHits) - 1,
                0, 0)
{
  theValidityFlag = this->construct( referenceTsos, forwardRecHits, backwardRecHits,
                     mass, materialEffects, propDir, magField, useBeamSpot, beamSpot );
}

virtual DualReferenceTrajectory::~DualReferenceTrajectory ( )

inlinevirtual

Definition at line 52 of file DualReferenceTrajectory.h.

{}

DualReferenceTrajectory::DualReferenceTrajectory ( unsigned int  nPar, unsigned int  nHits  )

protected

Definition at line 30 of file DualReferenceTrajectory.cc.

  : ReferenceTrajectoryBase(nPar, nHits, 0, 0)
{}

Member Function Documentation

virtual DualReferenceTrajectory* DualReferenceTrajectory::clone ( void  ) const

inlinevirtual

Implements ReferenceTrajectoryBase.

Reimplemented in DualBzeroReferenceTrajectory.

Definition at line 54 of file DualReferenceTrajectory.h.

References DualReferenceTrajectory().

{ return new DualReferenceTrajectory(*this); }

bool DualReferenceTrajectory::construct ( const TrajectoryStateOnSurface &  referenceTsos, const ConstRecHitContainer &  forwardRecHits, const ConstRecHitContainer &  backwardRecHits, double  mass, MaterialEffects  materialEffects, const PropagationDirection  propDir, const MagneticField *  magField, bool  useBeamSpot, const reco::BeamSpot &  beamSpot  )

protectedvirtual

internal method to calculate members

Definition at line 35 of file DualReferenceTrajectory.cc.

References ReferenceTrajectoryBase::breakPoints, ReferenceTrajectoryBase::derivatives(), edm::hlt::Exception, extractParameters(), ReferenceTrajectoryBase::isValid(), ReferenceTrajectoryBase::measurementErrors(), ReferenceTrajectoryBase::measurements(), ReferenceTrajectoryBase::nMeasPerHit, ReferenceTrajectoryBase::numberOfHitMeas(), ReferenceTrajectoryBase::numberOfVirtualMeas(), oppositeDirection(), ReferenceTrajectoryBase::recHits(), ReferenceTrajectoryBase::theDerivatives, ReferenceTrajectoryBase::theMeasurements, ReferenceTrajectoryBase::theMeasurementsCov, ReferenceTrajectoryBase::theNumberOfPars, ReferenceTrajectoryBase::theParameters, ReferenceTrajectoryBase::theRecHits, ReferenceTrajectoryBase::theTrajectoryPositionCov, ReferenceTrajectoryBase::theTrajectoryPositions, ReferenceTrajectoryBase::theTsosVec, ReferenceTrajectoryBase::trajectoryPositionErrors(), ReferenceTrajectoryBase::trajectoryPositions(), and ReferenceTrajectoryBase::trajectoryStates().

Referenced by DualBzeroReferenceTrajectory::DualBzeroReferenceTrajectory(), and DualReferenceTrajectory().

{
  if (materialEffects >= breakPoints)  throw cms::Exception("BadConfig")
    << "[DualReferenceTrajectory::construct] Wrong MaterialEffects: " << materialEffects;
    
  ReferenceTrajectoryBase* fwdTraj = construct(refTsos, forwardRecHits,
                           mass, materialEffects,
                           propDir, magField, useBeamSpot, beamSpot);

  ReferenceTrajectoryBase* bwdTraj = construct(refTsos, backwardRecHits,
                           mass, materialEffects,
                           oppositeDirection(propDir), magField, false, beamSpot);

  if ( !( fwdTraj->isValid() && bwdTraj->isValid() ) )
  {
    delete fwdTraj;
    delete bwdTraj;
    return false;
  }

  //
  // Combine both reference trajactories to a dual reference trajectory
  //

  const std::vector<TrajectoryStateOnSurface>& fwdTsosVec = fwdTraj->trajectoryStates();
  const std::vector<TrajectoryStateOnSurface>& bwdTsosVec = bwdTraj->trajectoryStates();
  theTsosVec.insert( theTsosVec.end(), fwdTsosVec.begin(), fwdTsosVec.end() );
  theTsosVec.insert( theTsosVec.end(), ++bwdTsosVec.begin(), bwdTsosVec.end() );

  const ConstRecHitContainer &fwdRecHits = fwdTraj->recHits();
  const ConstRecHitContainer &bwdRecHits = bwdTraj->recHits();
  theRecHits.insert( theRecHits.end(), fwdRecHits.begin(), fwdRecHits.end() );
  theRecHits.insert( theRecHits.end(), ++bwdRecHits.begin(), bwdRecHits.end() );

  theParameters = extractParameters( refTsos );
  
  unsigned int nParam   = theNumberOfPars;
  unsigned int nFwdMeas = fwdTraj->numberOfHitMeas();
  unsigned int nBwdMeas = bwdTraj->numberOfHitMeas();
  unsigned int nFwdBP   = fwdTraj->numberOfVirtualMeas();
  unsigned int nBwdBP   = bwdTraj->numberOfVirtualMeas();
  unsigned int nMeas    = nFwdMeas+nBwdMeas-nMeasPerHit; 
       
  theMeasurements.sub( 1, fwdTraj->measurements().sub( 1, nFwdMeas ) );
  theMeasurements.sub( nFwdMeas+1, bwdTraj->measurements().sub( nMeasPerHit+1, nBwdMeas ) );
    
  theMeasurementsCov.sub( 1, fwdTraj->measurementErrors().sub( 1, nFwdMeas ) );
  theMeasurementsCov.sub( nFwdMeas+1, bwdTraj->measurementErrors().sub( nMeasPerHit+1, nBwdMeas ) );
  
  theTrajectoryPositions.sub( 1, fwdTraj->trajectoryPositions() );
  theTrajectoryPositions.sub( nFwdMeas+1, bwdTraj->trajectoryPositions().sub( nMeasPerHit+1, nBwdMeas ) );

  theTrajectoryPositionCov.sub( 1, fwdTraj->trajectoryPositionErrors() );
  theTrajectoryPositionCov.sub( nFwdMeas+1, bwdTraj->trajectoryPositionErrors().sub( nMeasPerHit+1, nBwdMeas ) );

  theDerivatives.sub( 1, 1, fwdTraj->derivatives().sub( 1, nFwdMeas, 1, nParam ) );
  theDerivatives.sub( nFwdMeas+1, 1, bwdTraj->derivatives().sub( nMeasPerHit+1, nBwdMeas, 1, nParam ) );
  
// for the break points 
// DUAL with break points makes no sense: (MS) correlations between the two parts are lost ! 
  if (nFwdBP>0 )
  {
    theMeasurements.sub( nMeas+1, fwdTraj->measurements().sub( nFwdMeas+1, nFwdMeas+nFwdBP ) );
    theMeasurementsCov.sub( nMeas+1, fwdTraj->measurementErrors().sub( nFwdMeas+1, nFwdMeas+nFwdBP ) );  
    theDerivatives.sub( 1, nParam+1, fwdTraj->derivatives().sub( 1, nFwdMeas, nParam+1, nParam+nFwdBP ) );
    theDerivatives.sub( nMeas+1, nParam+1, fwdTraj->derivatives().sub( nFwdMeas+1, nFwdMeas+nFwdBP, nParam+1, nParam+nFwdBP ) );
  }  
  if (nBwdBP>0 )
  {
    theMeasurements.sub( nMeas+nFwdBP+1, bwdTraj->measurements().sub( nBwdMeas+1, nBwdMeas+nBwdBP ) );  
    theMeasurementsCov.sub( nMeas+nFwdBP+1, bwdTraj->measurementErrors().sub( nBwdMeas+1, nBwdMeas+nBwdBP ) );  
    theDerivatives.sub( nFwdMeas+1, nParam+nFwdBP+1, bwdTraj->derivatives().sub( nMeasPerHit+1, nBwdMeas, nParam+1, nParam+nBwdBP ) );
    theDerivatives.sub( nMeas+nFwdBP+1, nParam+nFwdBP+1, bwdTraj->derivatives().sub( nBwdMeas+1, nBwdMeas+nBwdBP, nParam+1, nParam+nBwdBP ) );
  }
    
  delete fwdTraj;
  delete bwdTraj;

  return true; 
}

ReferenceTrajectory * DualReferenceTrajectory::construct ( const TrajectoryStateOnSurface &  referenceTsos, const ConstRecHitContainer &  recHits, double  mass, MaterialEffects  materialEffects, const PropagationDirection  propDir, const MagneticField *  magField, bool  useBeamSpot, const reco::BeamSpot &  beamSpot  ) const

protectedvirtual

Reimplemented in DualBzeroReferenceTrajectory.

Definition at line 125 of file DualReferenceTrajectory.cc.

References ReferenceTrajectoryBase::breakPoints, and edm::hlt::Exception.

{
  if (materialEffects >= breakPoints)  throw cms::Exception("BadConfig")
    << "[DualReferenceTrajectory::construct] Wrong MaterialEffects: " << materialEffects;
  
  return new ReferenceTrajectory(referenceTsos, recHits, false,
                 magField, materialEffects, propDir, mass,
                 useBeamSpot, beamSpot);
}

AlgebraicVector DualReferenceTrajectory::extractParameters ( const TrajectoryStateOnSurface &  referenceTsos ) const

protectedvirtual

Reimplemented in DualBzeroReferenceTrajectory.

Definition at line 143 of file DualReferenceTrajectory.cc.

References TrajectoryStateOnSurface::localParameters(), and LocalTrajectoryParameters::mixedFormatVector().

Referenced by construct().

{
  return asHepVector<5>( referenceTsos.localParameters().mixedFormatVector() );
}

const PropagationDirection DualReferenceTrajectory::oppositeDirection ( const PropagationDirection  propDir ) const

inlineprotected

Definition at line 81 of file DualReferenceTrajectory.h.

References alongMomentum, anyDirection, and oppositeToMomentum.

Referenced by construct().

  { return ( propDir == anyDirection ) ? anyDirection : ( ( propDir == alongMomentum ) ? oppositeToMomentum : alongMomentum ); }