MultiTrajectoryStateTransform Class Reference

#include <MultiTrajectoryStateTransform.h>

Public Member Functions
TrajectoryStateOnSurface	extrapolatedState (const TrajectoryStateOnSurface tsos, const GlobalPoint &point) const
bool	innerMomentumFromMode (const reco::GsfTrack &tk, GlobalVector &momentum) const
TrajectoryStateOnSurface	innerStateOnSurface (const reco::GsfTrack &tk) const
	MultiTrajectoryStateTransform ()
	MultiTrajectoryStateTransform (const TrackingGeometry *geom, const MagneticField *field)
bool	outerMomentumFromMode (const reco::GsfTrack &tk, GlobalVector &momentum) const
TrajectoryStateOnSurface	outerStateOnSurface (const reco::GsfTrack &tk) const
	~MultiTrajectoryStateTransform ()

Static Public Member Functions
static TrajectoryStateOnSurface	innerStateOnSurface (const reco::GsfTrack &tk, const TrackingGeometry &geom, const MagneticField *field)
static TrajectoryStateOnSurface	outerStateOnSurface (const reco::GsfTrack &tk, const TrackingGeometry &geom, const MagneticField *field)

Private Types
enum	{ dimension = reco::GsfTrackExtra::dimension }
typedef reco::GsfTrackExtra::LocalCovarianceMatrix	CovarianceMatrix
typedef reco::GsfTrackExtra::LocalParameterVector	ParameterVector

Private Member Functions
bool	checkExtrapolator () const
bool	checkGeometry () const

Static Private Member Functions
static TrajectoryStateOnSurface	stateOnSurface (const std::vector< double > &weights, const std::vector< ParameterVector > &parameters, const std::vector< CovarianceMatrix > &covariances, const double &pzSign, const Surface &surface, const MagneticField *field)

Private Attributes
TransverseImpactPointExtrapolator *	extrapolator_
const MagneticField *	field_
const TrackingGeometry *	geometry_

Detailed Description

Definition at line 18 of file MultiTrajectoryStateTransform.h.

Member Typedef Documentation

CovarianceMatrix

typedef reco::GsfTrackExtra::LocalCovarianceMatrix MultiTrajectoryStateTransform::CovarianceMatrix

private

Definition at line 21 of file MultiTrajectoryStateTransform.h.

ParameterVector

typedef reco::GsfTrackExtra::LocalParameterVector MultiTrajectoryStateTransform::ParameterVector

private

Definition at line 20 of file MultiTrajectoryStateTransform.h.

Member Enumeration Documentation

anonymous enum

anonymous enum

private

Enumerator
dimension

Definition at line 22 of file MultiTrajectoryStateTransform.h.

{ dimension = reco::GsfTrackExtra::dimension };

Constructor & Destructor Documentation

MultiTrajectoryStateTransform() [1/2]

MultiTrajectoryStateTransform::MultiTrajectoryStateTransform ( )

inline

Default constructor (deprecated) -> ES components have to be passed explicitely

Definition at line 26 of file MultiTrajectoryStateTransform.h.

: geometry_(nullptr), field_(nullptr), extrapolator_(nullptr) {}

MultiTrajectoryStateTransform() [2/2]

MultiTrajectoryStateTransform::MultiTrajectoryStateTransform ( const TrackingGeometry *  geom, const MagneticField *  field  )

inline

Constructor from geometry and magnetic field

Definition at line 28 of file MultiTrajectoryStateTransform.h.

      : geometry_(geom), field_(field), extrapolator_(nullptr) {}

~MultiTrajectoryStateTransform()

MultiTrajectoryStateTransform::~MultiTrajectoryStateTransform

(

)

Destructor

Definition at line 17 of file MultiTrajectoryStateTransform.cc.

{ delete extrapolator_; }

References extrapolator_.

Member Function Documentation

checkExtrapolator()

bool MultiTrajectoryStateTransform::checkExtrapolator ( ) const

private

On-demand creation of a TransverseImpactPointExtrapolator

Definition at line 109 of file MultiTrajectoryStateTransform.cc.

                                                            {
  if (extrapolator_)
    return true;
 
  if (field_ == nullptr) {
    edm::LogError("MultiTrajectoryStateTransform") << "Missing magnetic field";
    return false;
  }
 
  GsfPropagatorAdapter gsfPropagator(AnalyticalPropagator(field_, anyDirection));
  extrapolator_ = new TransverseImpactPointExtrapolator(gsfPropagator);
  return true;
}

References AnalyticalPropagator_cfi::AnalyticalPropagator, anyDirection, extrapolator_, and field_.

Referenced by extrapolatedState().

checkGeometry()

bool MultiTrajectoryStateTransform::checkGeometry ( ) const

private

Verification of the presence of geometry and field

Definition at line 96 of file MultiTrajectoryStateTransform.cc.

                                                        {
  if (geometry_ && field_)
    return true;
 
  edm::LogError("MultiTrajectoryStateTransform") << "Missing ES components";
  return false;
}

References field_, and geometry_.

Referenced by innerStateOnSurface(), and outerStateOnSurface().

extrapolatedState()

TrajectoryStateOnSurface MultiTrajectoryStateTransform::extrapolatedState	(	const TrajectoryStateOnSurface	tsos,
		const GlobalPoint &	point
	)		const

Extrapolation to a point using the TransverseImpactPointExtrapolator

Definition at line 104 of file MultiTrajectoryStateTransform.cc.

                                                                                                          {
  return checkExtrapolator() ? extrapolator_->extrapolate(tsos, point) : TrajectoryStateOnSurface();
}

References checkExtrapolator(), TransverseImpactPointExtrapolator::extrapolate(), extrapolator_, and point.

Referenced by GsfElectronAlgo::ElectronData::calculateTSOS(), and GsfElectronAlgo::ElectronData::getEleBasicCluster().

innerMomentumFromMode()

bool MultiTrajectoryStateTransform::innerMomentumFromMode	(	const reco::GsfTrack &	tk,
		GlobalVector &	momentum
	)		const

Momentum vector from mode corresponding to the innermost state. Returns true for success.

Definition at line 31 of file MultiTrajectoryStateTransform.cc.

                                                                                                              {
  return multiTrajectoryStateMode::momentumFromModeCartesian(outerStateOnSurface(tk), momentum);
}

References multiTrajectoryStateMode::momentumFromModeCartesian(), and outerStateOnSurface().

innerStateOnSurface() [1/2]

TrajectoryStateOnSurface MultiTrajectoryStateTransform::innerStateOnSurface

(

const reco::GsfTrack &

tk

)

const

TrajectoryStateOnSurface from the innermost state of a reco::GsfTrack

Definition at line 23 of file MultiTrajectoryStateTransform.cc.

                                                                                                        {
  return checkGeometry() ? innerStateOnSurface(tk, *geometry_, field_) : TrajectoryStateOnSurface();
}

References checkGeometry(), field_, and geometry_.

Referenced by PFTrackTransformer::addPointsAndBrems(), GsfElectronAlgo::ElectronData::calculateTSOS(), GsfConstraintAtVertex::constrainAtPoint(), reco::GsfTransientTrack::innermostMeasurementState(), EgammaHLTGsfTrackVarProducer::produce(), and PFElecTkProducer::produce().

innerStateOnSurface() [2/2]

TrajectoryStateOnSurface MultiTrajectoryStateTransform::innerStateOnSurface ( const reco::GsfTrack &  tk, const TrackingGeometry &  geom, const MagneticField *  field  )

static

TrajectoryStateOnSurface from the innermost state of a reco::GsfTrack passing geometry and magnetic field (deprecated: use field from constructor)

Definition at line 49 of file MultiTrajectoryStateTransform.cc.

                                                                                                        {
  const Surface& surface = geom.idToDet(DetId(tk.extra()->innerDetId()))->surface();
 
  const reco::GsfTrackExtraRef& extra(tk.gsfExtra());
  return stateOnSurface(extra->innerStateWeights(),
                        extra->innerStateLocalParameters(),
                        extra->innerStateCovariances(),
                        extra->innerStateLocalPzSign(),
                        surface,
                        field);
}

References reco::Track::extra(), relativeConstraints::geom, reco::GsfTrack::gsfExtra(), and stateOnSurface().

outerMomentumFromMode()

bool MultiTrajectoryStateTransform::outerMomentumFromMode	(	const reco::GsfTrack &	tk,
		GlobalVector &	momentum
	)		const

Momentum vector from mode corresponding to the outermost state

Definition at line 27 of file MultiTrajectoryStateTransform.cc.

                                                                                                              {
  return multiTrajectoryStateMode::momentumFromModeCartesian(outerStateOnSurface(tk), momentum);
}

References multiTrajectoryStateMode::momentumFromModeCartesian(), and outerStateOnSurface().

outerStateOnSurface() [1/2]

TrajectoryStateOnSurface MultiTrajectoryStateTransform::outerStateOnSurface

(

const reco::GsfTrack &

tk

)

const

TrajectoryStateOnSurface from the outermost state of a reco::GsfTrack

Definition at line 19 of file MultiTrajectoryStateTransform.cc.

                                                                                                        {
  return checkGeometry() ? outerStateOnSurface(tk, *geometry_, field_) : TrajectoryStateOnSurface();
}

References checkGeometry(), field_, and geometry_.

Referenced by PFTrackTransformer::addPointsAndBrems(), GsfElectronAlgo::ElectronData::calculateTSOS(), GsfElectronAlgo::ElectronData::getEleBasicCluster(), innerMomentumFromMode(), outerMomentumFromMode(), and reco::GsfTransientTrack::outermostMeasurementState().

outerStateOnSurface() [2/2]

TrajectoryStateOnSurface MultiTrajectoryStateTransform::outerStateOnSurface ( const reco::GsfTrack &  tk, const TrackingGeometry &  geom, const MagneticField *  field  )

static

TrajectoryStateOnSurface from the outermost state of a reco::GsfTrack passing geometry and magnetic field (deprecated: use field from constructor)

Definition at line 35 of file MultiTrajectoryStateTransform.cc.

                                                                                                        {
  const Surface& surface = geom.idToDet(DetId(tk.extra()->outerDetId()))->surface();
 
  const reco::GsfTrackExtraRef& extra(tk.gsfExtra());
  return stateOnSurface(extra->outerStateWeights(),
                        extra->outerStateLocalParameters(),
                        extra->outerStateCovariances(),
                        extra->outerStateLocalPzSign(),
                        surface,
                        field);
}

References reco::Track::extra(), relativeConstraints::geom, reco::GsfTrack::gsfExtra(), and stateOnSurface().

stateOnSurface()

TrajectoryStateOnSurface MultiTrajectoryStateTransform::stateOnSurface ( const std::vector< double > &  weights, const std::vector< ParameterVector > &  parameters, const std::vector< CovarianceMatrix > &  covariances, const double &  pzSign, const Surface &  surface, const MagneticField *  field  )

staticprivate

TSOS from a mixture in local parameters

Definition at line 63 of file MultiTrajectoryStateTransform.cc.

                                                                                                   {
  if (weights.empty())
    return TrajectoryStateOnSurface();
 
  unsigned int nc(weights.size());
  AlgebraicVector5 pars;
  AlgebraicSymMatrix55 cov;
 
  std::vector<TrajectoryStateOnSurface> components;
  components.reserve(nc);
 
  // create components TSOSs
  for (unsigned int i = 0; i < nc; i++) {
    // convert parameter vector and covariance matrix
    for (unsigned int j1 = 0; j1 < dimension; j1++) {
      pars[j1] = parameters[i](j1);
      for (unsigned int j2 = 0; j2 <= j1; j2++)
        cov(j1, j2) = covariances[i](j1, j2);  //FIXME: SMatrix copy constructor should handle this!!
    }
    // create local parameters & errors
    LocalTrajectoryParameters lp(pars, pzSign);
    LocalTrajectoryError le(cov);
    // create component
    components.push_back(TrajectoryStateOnSurface(weights[i], lp, le, surface, field));
  }
  return TrajectoryStateOnSurface((BasicTrajectoryState*)(new BasicMultiTrajectoryState(components)));
}

References makeMuonMisalignmentScenario::components, dimension, mps_fire::i, and HLT_FULL_cff::weights.

Referenced by innerStateOnSurface(), and outerStateOnSurface().

Member Data Documentation

extrapolator_

TransverseImpactPointExtrapolator* MultiTrajectoryStateTransform::extrapolator_

mutableprivate

Definition at line 74 of file MultiTrajectoryStateTransform.h.

Referenced by checkExtrapolator(), extrapolatedState(), and ~MultiTrajectoryStateTransform().

field_

const MagneticField* MultiTrajectoryStateTransform::field_

private

Definition at line 73 of file MultiTrajectoryStateTransform.h.

Referenced by checkExtrapolator(), checkGeometry(), innerStateOnSurface(), and outerStateOnSurface().

geometry_

const TrackingGeometry* MultiTrajectoryStateTransform::geometry_

private

Definition at line 72 of file MultiTrajectoryStateTransform.h.

Referenced by checkGeometry(), innerStateOnSurface(), and outerStateOnSurface().