MagneticField Class Reference

#include <MagneticField.h>

Inheritance diagram for MagneticField:

Public Member Functions
virtual MagneticField *	clone () const
GlobalVector	inInverseGeV (const GlobalPoint &gp) const
	Field value ad specified global point, in 1/Gev. More...
GlobalVector	inKGauss (const GlobalPoint &gp) const
	Field value ad specified global point, in KGauss. More...
virtual GlobalVector	inTesla (const GlobalPoint &gp) const =0
	Field value ad specified global point, in Tesla. More...
virtual GlobalVector	inTeslaUnchecked (const GlobalPoint &gp) const
float	inverseBzAtOriginInGeV () const
	The inverse of field z component for this map in GeV. More...
virtual bool	isDefined (const GlobalPoint &) const
	True if the point is within the region where the concrete field. More...
	MagneticField ()
	MagneticField (const MagneticField &orig)
int	nominalValue () const
	The nominal field value for this map in kGauss. More...
virtual	~MagneticField ()

Protected Member Functions
void	setNominalValue ()

Private Attributes
float	theInverseBzAtOriginInGeV = 0
int	theNominalValue = 0

Detailed Description

Base class for the different implementation of magnetic field engines.

Author

N. Amapane - CERN

Definition at line 19 of file MagneticField.h.

Constructor & Destructor Documentation

MagneticField::MagneticField ( )

default

MagneticField::MagneticField ( const MagneticField &  orig )

default

MagneticField::~MagneticField ( )

virtualdefault

Member Function Documentation

virtual MagneticField* MagneticField::clone ( void  ) const

inlinevirtual

Derived classes can implement cloning without ownership of the underlying engines.

Reimplemented in VolumeBasedMagneticField.

Definition at line 27 of file MagneticField.h.

{ return nullptr; }

GlobalVector MagneticField::inInverseGeV ( const GlobalPoint &  gp ) const

inline

Field value ad specified global point, in 1/Gev.

Definition at line 36 of file MagneticField.h.

References F(), and inTesla().

Referenced by DMRChecker::analyze(), PerigeeLinearizedTrackState::computeChargedJacobians(), PerigeeLinearizedTrackState::computeJacobians(), SingleTrackVertexConstraint::constrain(), TwoBodyDecayEstimator::constructMatrices(), TSCPBuilderNoMaterial::createFTSatTransverseImpactPointCharged(), tauImpactParameter::ParticleBuilder::createTrackParticle(), TrackerValidationVariables::fillTrackQuantities(), JacobianCurvilinearToLocal::JacobianCurvilinearToLocal(), JacobianLocalToCurvilinear::JacobianLocalToCurvilinear(), PerigeeConversions::jacobianParameters2Cartesian(), KinematicPerigeeConversions::kinematicParametersFromExPerigee(), KinematicPerigeeConversions::momentumFromPerigee(), PerigeeConversions::momentumFromPerigee(), ThirdHitPrediction::ThirdHitPrediction(), and TwoTrackMinimumDistanceHelixHelix::updateCoeffs().

{ return inTesla(gp) * 2.99792458e-3F; }

GlobalVector MagneticField::inKGauss ( const GlobalPoint &  gp ) const

inline

Field value ad specified global point, in KGauss.

Definition at line 33 of file MagneticField.h.

References inTesla().

Referenced by CSCDriftSim::getWireHit().

{ return inTesla(gp) * 10.F; }

virtual GlobalVector MagneticField::inTesla ( const GlobalPoint &  gp ) const

pure virtual

Field value ad specified global point, in Tesla.

Implemented in VolumeBasedMagneticField, OAEParametrizedMagneticField, PolyFit2DParametrizedMagneticField, ParabolicParametrizedMagneticField, UniformMagneticField, and LocalMagneticField.

Referenced by cms::SiPixelDigitizer::accumulatePixelHits(), cms::Phase2TrackerDigitizer::accumulatePixelHits(), SiStripDigitizer::accumulateStripHits(), DisplayGeom::analyze(), IsoTrig::analyze(), DMRChecker::analyze(), MonopoleSteppingAction::beginRun(), tmtt::TMTrackProducer::beginRun(), ConvBremSeedProducer::beginRun(), L1FPGATrackProducer::beginRun(), SeedingOTEDProducer::buildInitialTSOS(), TwoTrackMinimumDistanceLineLine::calculate(), ClosestApproachInRPhi::calculate(), TwoTrackMinimumDistance::calculate(), trackerDTC::Setup::checkMagneticField(), TangentApproachInRPhi::circleParameters(), SiStripLorentzAngleCalibration::derivatives(), SiPixelLorentzAngleCalibration::derivatives(), SiStripBackplaneCalibration::derivatives(), shallow::drift(), StripCPE::driftDirection(), Phase2StripCPE::driftDirection(), egammaTools::ecalPhi(), TrackTimeValueMapProducer::extractTrackVertexTime(), PixelCPEBase::fillDetParams(), ApeEstimator::fillHitVariables(), PhotonConversionTrajectorySeedProducerFromSingleLegAlgo::find(), trackingTools::ftsFromVertexToPoint(), ClusterShapeHitFilter::getDrift(), sim::Field::GetFieldValue(), SteppingHelixPropagator::getNextState(), GlobalTrajectoryParameters::GlobalTrajectoryParameters(), ConversionFastHelix::helixStateAtVertex(), inInverseGeV(), inKGauss(), MagneticFieldMap::inTesla(), inTeslaUnchecked(), MagneticFieldMap::inTeslaZ(), SteppingHelixPropagator::loadState(), GlobalTrajectoryParameters::magneticFieldInInverseGeV(), SteppingHelixPropagator::makeAtomStep(), SimpleCosmicBONSeeder::pqFromHelixFit(), cms::MuonMETValueMapProducer::produce(), GlobalTrajectoryParameters::setCache(), setNominalValue(), SeedFromNuclearInteraction::stateWithError(), DualTrajectoryFactory::trajectories(), ReferenceTrajectoryFactory::trajectories(), SimpleCosmicBONSeeder::triplets(), and defaultRKPropagator::TrivialFieldProvider::valueInTesla().

virtual GlobalVector MagneticField::inTeslaUnchecked ( const GlobalPoint &  gp ) const

inlinevirtual

Optional implementation that derived classes can implement to provide faster query by skipping the check to isDefined.

Reimplemented in VolumeBasedMagneticField, OAEParametrizedMagneticField, PolyFit2DParametrizedMagneticField, ParabolicParametrizedMagneticField, and UniformMagneticField.

Definition at line 44 of file MagneticField.h.

References inTesla().

Referenced by VolumeBasedMagneticField::inTesla(), and VolumeBasedMagneticField::inTeslaUnchecked().

                                                                     {
    return inTesla(gp);  // default dummy implementation
  }

float MagneticField::inverseBzAtOriginInGeV ( ) const

inline

The inverse of field z component for this map in GeV.

Definition at line 52 of file MagneticField.h.

References theInverseBzAtOriginInGeV.

Referenced by PixelRecoUtilities::bendingRadius(), PixelRecoUtilities::curvature(), pixelrecoutilities::LongitudinalBendingCorrection::init(), PixelRecoUtilities::inversePt(), and PixelFitterByHelixProjections::run().

{ return theInverseBzAtOriginInGeV; }

virtual bool MagneticField::isDefined ( const GlobalPoint &  ) const

inlinevirtual

True if the point is within the region where the concrete field.

Reimplemented in VolumeBasedMagneticField, OAEParametrizedMagneticField, ParabolicParametrizedMagneticField, PolyFit2DParametrizedMagneticField, and UniformMagneticField.

Definition at line 40 of file MagneticField.h.

Referenced by TrajSeedMatcher::ftsFromVertexToPoint(), VolumeBasedMagneticField::inTesla(), and VolumeBasedMagneticField::inTeslaUnchecked().

{ return true; }

int MagneticField::nominalValue ( ) const

inline

The nominal field value for this map in kGauss.

Definition at line 49 of file MagneticField.h.

References theNominalValue.

Referenced by TrackProducerAlgorithm< reco::Track >::buildTrack(), TrackProducerAlgorithm< reco::GsfTrack >::buildTrack(), SingleTrackVertexConstraint::constrain(), ReferenceTrajectory::construct(), SiPixelLorentzAnglePCLHarvester::fitAndStore(), SeedFromConsecutiveHitsCreator::init(), MultiHitGeneratorFromChi2::initES(), PixelCPEClusterRepair::PixelCPEClusterRepair(), SimpleCosmicBONSeeder::pqFromHelixFit(), FreeTrajectoryState::rescaleError(), BasicTrajectoryState::rescaleError(), SeedFromGenericPairOrTriplet::seedFromTriplet(), and DTLinearDriftFromDBAlgo::setES().

{ return theNominalValue; }

void MagneticField::setNominalValue ( )

protected

Definition at line 14 of file MagneticField.cc.

References validate-o2o-wbm::f, inTesla(), theInverseBzAtOriginInGeV, theNominalValue, and PV3DBase< T, PVType, FrameType >::z().

Referenced by LocalMagneticField::LocalMagneticField(), MagCylinder::MagCylinder(), MagVolume6Faces::MagVolume6Faces(), OAEParametrizedMagneticField::OAEParametrizedMagneticField(), ParabolicParametrizedMagneticField::ParabolicParametrizedMagneticField(), PolyFit2DParametrizedMagneticField::PolyFit2DParametrizedMagneticField(), defaultRKPropagator::RKMagVolume::RKMagVolume(), UniformMagneticField::UniformMagneticField(), and VolumeBasedMagneticField::VolumeBasedMagneticField().

                                    {
  auto const at0z = inTesla(GlobalPoint(0.f, 0.f, 0.f)).z();
  theNominalValue = int(at0z * 10.f + 0.5f);
  theInverseBzAtOriginInGeV = 1.f / (at0z * 2.99792458e-3f);
}

Member Data Documentation

float MagneticField::theInverseBzAtOriginInGeV = 0

private

Definition at line 61 of file MagneticField.h.

Referenced by inverseBzAtOriginInGeV(), and setNominalValue().

int MagneticField::theNominalValue = 0

private

Definition at line 60 of file MagneticField.h.

Referenced by nominalValue(), and setNominalValue().