#include <SeedFromConsecutiveHitsStraightLineCreator.h>

Inheritance diagram for SeedFromConsecutiveHitsStraightLineCreator:

Public Member Functions
	SeedFromConsecutiveHitsStraightLineCreator (const edm::ParameterSet &cfg)

	~SeedFromConsecutiveHitsStraightLineCreator () override

Public Member Functions inherited from SeedFromConsecutiveHitsCreator
void	init (const TrackingRegion &region, const edm::EventSetup &es, const SeedComparitor *filter) final

void	makeSeed (TrajectorySeedCollection &seedCollection, const SeedingHitSet &hits) final

	SeedFromConsecutiveHitsCreator (const edm::ParameterSet &cfg)

	~SeedFromConsecutiveHitsCreator () override

Public Member Functions inherited from SeedCreator
virtual	~SeedCreator ()

Private Member Functions
bool	initialKinematic (GlobalTrajectoryParameters &kine, const SeedingHitSet &hits) const override

Additional Inherited Members
Static Public Member Functions inherited from SeedFromConsecutiveHitsCreator
static void	fillDescriptions (edm::ParameterSetDescription &desc)

static const char *	fillDescriptionsLabel ()

Protected Attributes inherited from SeedFromConsecutiveHitsCreator
edm::ESHandle< MagneticField >	bfield

TkClonerImpl	cloner

const SeedComparitor *	filter = nullptr

bool	forceKinematicWithRegionDirection_

bool	isBOFF = false

std::string	mfName_

float	nomField

edm::ESHandle< Propagator >	propagatorHandle

const TrackingRegion *	region = nullptr

float	theBOFFMomentum

float	theMinOneOverPtError

float	theOriginTransverseErrorMultiplier

std::string	thePropagatorLabel

edm::ESHandle< TrackerGeometry >	tracker

std::string	TTRHBuilder

Detailed Description

Definition at line 9 of file SeedFromConsecutiveHitsStraightLineCreator.h.

Constructor & Destructor Documentation

◆ SeedFromConsecutiveHitsStraightLineCreator()

SeedFromConsecutiveHitsStraightLineCreator::SeedFromConsecutiveHitsStraightLineCreator ( const edm::ParameterSet & cfg )

inline

Definition at line 11 of file SeedFromConsecutiveHitsStraightLineCreator.h.

11 : SeedFromConsecutiveHitsCreator(cfg) {}

◆ ~SeedFromConsecutiveHitsStraightLineCreator()

SeedFromConsecutiveHitsStraightLineCreator::~SeedFromConsecutiveHitsStraightLineCreator ( )

inlineoverride

Definition at line 13 of file SeedFromConsecutiveHitsStraightLineCreator.h.

13 {}

Member Function Documentation

◆ initialKinematic()

bool SeedFromConsecutiveHitsStraightLineCreator::initialKinematic	(	GlobalTrajectoryParameters &	kine,
		const SeedingHitSet &	hits
	)		const

overrideprivatevirtual

Reimplemented from SeedFromConsecutiveHitsCreator.

Definition at line 4 of file SeedFromConsecutiveHitsStraightLineCreator.cc.

                                                                                                    {
   const SeedingHitSet::ConstRecHitPointer& tth1 = hits[0];
   const SeedingHitSet::ConstRecHitPointer& tth2 = hits[1];
  
   const GlobalPoint& vertexPos = region->origin();
  
   // Assume initial state is straight line passing through beam spot
   // with direction given by innermost two seed hits (with big uncertainty)
   GlobalVector initMomentum(tth2->globalPosition() - tth1->globalPosition());
   double rescale = 1000. / initMomentum.perp();
   initMomentum *= rescale;  // set to approximately infinite momentum
   TrackCharge q = 1;        // irrelevant, since infinite momentum
   kine = GlobalTrajectoryParameters(vertexPos, initMomentum, q, &*bfield);
  
   return true;
 }

References SeedFromConsecutiveHitsCreator::bfield, hfClusterShapes_cfi::hits, TrackingRegion::origin(), data-class-funcs::q, SeedFromConsecutiveHitsCreator::region, and MuonErrorMatrixAdjuster_cfi::rescale.

Public Member Functions