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, localGBL,   curvlinGBL }
typedef ReferenceCountingPointer < ReferenceTrajectoryBase >	ReferenceTrajectoryPtr

Public Member Functions
virtual DualReferenceTrajectory *	clone () const
	DualReferenceTrajectory (const TrajectoryStateOnSurface &tsos, const ConstRecHitContainer &forwardRecHits, const ConstRecHitContainer &backwardRecHits, const MagneticField *magField, const reco::BeamSpot &beamSpot, const ReferenceTrajectoryBase::Config &config)
virtual	~DualReferenceTrajectory ()
Public Member Functions inherited from ReferenceTrajectoryBase
const AlgebraicMatrix &	derivatives () const
const TMatrixD &	gblExtDerivatives () const
const TVectorD &	gblExtMeasurements () const
const TVectorD &	gblExtPrecisions () const
std::vector< std::pair < std::vector< gbl::GblPoint > , TMatrixD > > &	gblInput ()
bool	isValid ()
const AlgebraicMatrix &	localToTrajectory () const
const AlgebraicSymMatrix &	measurementErrors () const
const AlgebraicVector &	measurements () const
int	nominalField () 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, const MagneticField *magField, const reco::BeamSpot &beamSpot)
virtual ReferenceTrajectory *	construct (const TrajectoryStateOnSurface &referenceTsos, const ConstRecHitContainer &recHits, const MagneticField *magField, const reco::BeamSpot &beamSpot, const bool revertDirection=false) const
	DualReferenceTrajectory (unsigned int nPar, unsigned int nHits, const ReferenceTrajectoryBase::Config &config)
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

Private Attributes
const double	mass_
const MaterialEffects	materialEffects_
const PropagationDirection	propDir_
const bool	useBeamSpot_

Additional Inherited Members
Protected Attributes inherited from ReferenceTrajectoryBase
AlgebraicMatrix	theDerivatives
TMatrixD	theGblExtDerivatives
TVectorD	theGblExtMeasurements
TVectorD	theGblExtPrecisions
std::vector< std::pair < std::vector< gbl::GblPoint > , TMatrixD > >	theGblInput
AlgebraicMatrix	theInnerLocalToTrajectory
AlgebraicMatrix	theInnerTrajectoryToCurvilinear
AlgebraicVector	theMeasurements
AlgebraicSymMatrix	theMeasurementsCov
int	theNomField
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 &	tsos,
		const ConstRecHitContainer &	forwardRecHits,
		const ConstRecHitContainer &	backwardRecHits,
		const MagneticField *	magField,
		const reco::BeamSpot &	beamSpot,
		const ReferenceTrajectoryBase::Config &	config
	)

Definition at line 11 of file DualReferenceTrajectory.cc.

References construct(), and ReferenceTrajectoryBase::theValidityFlag.

Referenced by clone().

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

virtual DualReferenceTrajectory::~DualReferenceTrajectory ( )

inlinevirtual

Definition at line 49 of file DualReferenceTrajectory.h.

{}

DualReferenceTrajectory::DualReferenceTrajectory ( unsigned int  nPar, unsigned int  nHits, const ReferenceTrajectoryBase::Config &  config  )

protected

Definition at line 30 of file DualReferenceTrajectory.cc.

  : ReferenceTrajectoryBase(nPar, nHits, 0, 0),
  mass_(config.mass),
  materialEffects_(config.materialEffects),
  propDir_(config.propDir),
  useBeamSpot_(config.useBeamSpot)
{}

Member Function Documentation

virtual DualReferenceTrajectory* DualReferenceTrajectory::clone ( void  ) const

inlinevirtual

Implements ReferenceTrajectoryBase.

Reimplemented in DualBzeroReferenceTrajectory.

Definition at line 51 of file DualReferenceTrajectory.h.

References DualReferenceTrajectory().

{ return new DualReferenceTrajectory(*this); }

bool DualReferenceTrajectory::construct ( const TrajectoryStateOnSurface &  referenceTsos, const ConstRecHitContainer &  forwardRecHits, const ConstRecHitContainer &  backwardRecHits, const MagneticField *  magField, const reco::BeamSpot &  beamSpot  )

protectedvirtual

internal method to calculate members

Definition at line 40 of file DualReferenceTrajectory.cc.

References ReferenceTrajectoryBase::breakPoints, ReferenceTrajectoryBase::derivatives(), Exception, extractParameters(), ReferenceTrajectoryBase::isValid(), materialEffects_, ReferenceTrajectoryBase::measurementErrors(), ReferenceTrajectoryBase::measurements(), ReferenceTrajectoryBase::nMeasPerHit, ReferenceTrajectoryBase::numberOfHitMeas(), ReferenceTrajectoryBase::numberOfVirtualMeas(), 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, magField, beamSpot);

  // set flag for opposite direction to true
  ReferenceTrajectoryBase* bwdTraj = construct(refTsos, backwardRecHits, magField, beamSpot, true);

  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, const MagneticField *  magField, const reco::BeamSpot &  beamSpot, const bool  revertDirection = false  ) const

protectedvirtual

Definition at line 124 of file DualReferenceTrajectory.cc.

References ReferenceTrajectoryBase::breakPoints, mps_alisetup::config, Exception, ReferenceTrajectoryBase::Config::hitsAreReverse, mass_, materialEffects_, oppositeDirection(), propDir_, ReferenceTrajectoryBase::Config::useBeamSpot, and useBeamSpot_.

{
  if (materialEffects_ >= breakPoints)  throw cms::Exception("BadConfig")
    << "[DualReferenceTrajectory::construct] Wrong MaterialEffects: " << materialEffects_;
  
  ReferenceTrajectoryBase::Config config(materialEffects_,
                                         (revertDirection ? oppositeDirection(propDir_): propDir_),
                                         mass_);
  config.useBeamSpot = useBeamSpot_;
  config.hitsAreReverse = false;
  return new ReferenceTrajectory(referenceTsos, recHits, magField, beamSpot, config);
}

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 74 of file DualReferenceTrajectory.h.

References alongMomentum, anyDirection, and oppositeToMomentum.

Referenced by construct().

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

Member Data Documentation

const double DualReferenceTrajectory::mass_

private

Definition at line 78 of file DualReferenceTrajectory.h.

Referenced by construct().

const MaterialEffects DualReferenceTrajectory::materialEffects_

private

Definition at line 79 of file DualReferenceTrajectory.h.

Referenced by construct().

const PropagationDirection DualReferenceTrajectory::propDir_

private

Definition at line 80 of file DualReferenceTrajectory.h.

Referenced by construct().

const bool DualReferenceTrajectory::useBeamSpot_

private

Definition at line 81 of file DualReferenceTrajectory.h.

Referenced by construct().