A findlet that searches for straight tracks in CDC coming form IP to an ECL cluster. More...

#include <AxialStraightTrackCreator.h>

Inheritance diagram for AxialStraightTrackCreator:

Public Types
using	IOTypes = std::tuple< AIOTypes... >
	Types that should be served to apply on invocation.

using	IOVectors = std::tuple< std::vector< AIOTypes >... >
	Vector types that should be served to apply on invocation.

Public Member Functions
	AxialStraightTrackCreator ()
	Constructor.

std::string	getDescription () final
	Short description of the findlet.

void	exposeParameters (ModuleParamList *moduleParamList, const std::string &prefix) final
	Expose the parameters to a module.

void	initialize () final
	Initialisation before the event processing starts.

void	apply (const std::vector< const ECLCluster * > &eclClusters, const std::vector< const CDCWireHit * > &axialWireHits, std::vector< CDCTrack > &tracks) final
	Execute one pass over given clusters and wirehits and create tracks.

virtual void	apply (ToVector< AIOTypes > &... ioVectors)=0
	Main function executing the algorithm.

void	beginRun () override
	Receive and dispatch signal for the beginning of a new run.

void	beginEvent () override
	Receive and dispatch signal for the start of a new event.

void	endRun () override
	Receive and dispatch signal for the end of the run.

void	terminate () override
	Receive and dispatch Signal for termination of the event processing.

Protected Types
using	ToVector = typename ToVectorImpl< T >::Type
	Short hand for ToRangeImpl.

Protected Member Functions
void	addProcessingSignalListener (ProcessingSignalListener *psl)
	Register a processing signal listener to be notified.

int	getNProcessingSignalListener ()
	Get the number of currently registered listeners.

Private Types
using	Super = Findlet< const ECLCluster const, const CDCWireHit const, CDCTrack >
	Type of the base class.

Private Member Functions
std::vector< const CDCWireHit * >	search (const std::vector< const CDCWireHit * > &axialWireHits, const CDCTrajectory2D &guidingTrajectory2D)
	Search for hits compatible with given trajectory.

Private Attributes
float	m_param_minEnergy = 0.050
	ECL cluster energy threshold.

unsigned int	m_param_minNHits = 5
	Track number of hits threshold.

float	m_param_maxDistance = 0.5
	Maximum distance from hits to the track.

std::vector< ProcessingSignalListener * >	m_subordinaryProcessingSignalListeners
	References to subordinary signal processing listener contained in this findlet.

bool	m_initialized = false
	Flag to keep track whether initialization happened before.

bool	m_terminated = false
	Flag to keep track whether termination happened before.

std::string	m_initializedAs
	Name of the type during initialisation.

Detailed Description

A findlet that searches for straight tracks in CDC coming form IP to an ECL cluster.

Definition at line 28 of file AxialStraightTrackCreator.h.

Member Typedef Documentation

◆ IOTypes

using IOTypes = std::tuple<AIOTypes...>

inherited

Types that should be served to apply on invocation.

Definition at line 30 of file Findlet.h.

◆ IOVectors

using IOVectors = std::tuple< std::vector<AIOTypes>... >

inherited

Vector types that should be served to apply on invocation.

Definition at line 53 of file Findlet.h.

◆ Super

using Super = Findlet<const ECLCluster* const, const CDCWireHit* const, CDCTrack>

private

Type of the base class.

Definition at line 32 of file AxialStraightTrackCreator.h.

◆ ToVector

using ToVector = typename ToVectorImpl<T>::Type

protectedinherited

Short hand for ToRangeImpl.

Definition at line 49 of file Findlet.h.

Member Function Documentation

◆ addProcessingSignalListener()

void addProcessingSignalListener ( ProcessingSignalListener * psl )

protectedinherited

Register a processing signal listener to be notified.

Definition at line 55 of file CompositeProcessingSignalListener.cc.

{
  m_subordinaryProcessingSignalListeners.push_back(psl);
}

◆ apply()

void apply	(	const std::vector< const ECLCluster * > &	eclClusters,
		const std::vector< const CDCWireHit * > &	axialWireHits,
		std::vector< CDCTrack > &	tracks
	)

final

Execute one pass over given clusters and wirehits and create tracks.

Definition at line 56 of file AxialStraightTrackCreator.cc.

{
  for (const ECLCluster* cluster : eclClusters) {
    if (!cluster->hasHypothesis(ECLCluster::EHypothesisBit::c_nPhotons)) continue;
    if (cluster->getEnergy(ECLCluster::EHypothesisBit::c_nPhotons) < m_param_minEnergy) continue;
    float phi = cluster->getPhi();
    UncertainPerigeeCircle circle(0, Vector2D::Phi(phi), 0); //no covariance matrix (yet?)
    CDCTrajectory2D guidingTrajectory2D(circle);
    CDCTrack track;
    guidingTrajectory2D.setLocalOrigin(Vector2D(0, 0));
    std::vector<const CDCWireHit*> foundHits = search(axialWireHits, guidingTrajectory2D);
    if (foundHits.size() < m_param_minNHits) continue;
    // Fit trajectory
    const CDCRiemannFitter& fitter = CDCRiemannFitter::getFitter(true, true);
    CDCTrajectory2D trajectory2D = fitter.fit(foundHits);
    track.setStartTrajectory3D(CDCTrajectory3D(trajectory2D, CDCTrajectorySZ::basicAssumption()));
 
    // Reconstruct and add hits
    for (const CDCWireHit* wireHit : foundHits) {
      CDCRecoHit3D recoHit3D = CDCRecoHit3D::reconstructNearest(wireHit, trajectory2D);
      track.push_back(std::move(recoHit3D));
    }
    track.sortByArcLength2D();
    tracks.emplace_back(std::move(track));
  }
}

◆ beginEvent()

void beginEvent ( )

overridevirtualinherited

Receive and dispatch signal for the start of a new event.

Reimplemented from ProcessingSignalListener.

Definition at line 31 of file CompositeProcessingSignalListener.cc.

{
  Super::beginEvent();
  for (ProcessingSignalListener* psl : m_subordinaryProcessingSignalListeners) {
    psl->beginEvent();
  }
}

◆ beginRun()

void beginRun ( )

overridevirtualinherited

Receive and dispatch signal for the beginning of a new run.

Reimplemented from ProcessingSignalListener.

Reimplemented in LayerRelationFilter< AFilter >, FourHitFilter, QualityIndicatorFilter, ThreeHitFilter, TwoHitVirtualIPFilter, TwoHitVirtualIPQIFilter, RecoTrackStorer, ROIFinder, SpacePointLoaderAndPreparer, and TrackCandidateResultRefiner.

Definition at line 23 of file CompositeProcessingSignalListener.cc.

{
  Super::beginRun();
  for (ProcessingSignalListener* psl : m_subordinaryProcessingSignalListeners) {
    psl->beginRun();
  }
}

◆ endRun()

void endRun ( )

overridevirtualinherited

Receive and dispatch signal for the end of the run.

Reimplemented from ProcessingSignalListener.

Definition at line 39 of file CompositeProcessingSignalListener.cc.

{
  for (ProcessingSignalListener* psl : reversedRange(m_subordinaryProcessingSignalListeners)) {
    psl->endRun();
  }
  Super::endRun();
}

◆ exposeParameters()

void exposeParameters	(	ModuleParamList *	moduleParamList,
		const std::string &	prefix
	)

finalvirtual

Expose the parameters to a module.

Reimplemented from Findlet< const ECLCluster *const, const CDCWireHit *const, CDCTrack >.

Definition at line 34 of file AxialStraightTrackCreator.cc.

{
  moduleParamList->addParameter(prefixed(prefix, "minEnergy"),
                                m_param_minEnergy,
                                "Parameter to define minimal threshold of ECL cluster energy.",
                                m_param_minEnergy);
  moduleParamList->addParameter(prefixed(prefix, "minNHits"),
                                m_param_minNHits,
                                "Parameter to define minimal threshold of track number of hits.",
                                m_param_minNHits);
  moduleParamList->addParameter(prefixed(prefix, "maxDistance"),
                                m_param_maxDistance,
                                "Parameter to define maximal threshold of hit distance to a line IP - ECL cluster.",
                                m_param_maxDistance);
}

◆ getDescription()

std::string getDescription ( )

finalvirtual

Short description of the findlet.

Reimplemented from Findlet< const ECLCluster *const, const CDCWireHit *const, CDCTrack >.

Definition at line 29 of file AxialStraightTrackCreator.cc.

{
  return "A findlet looking for straight tracks between IP and reconstructed ECL clusters.";
}

◆ getNProcessingSignalListener()

int getNProcessingSignalListener ( )

protectedinherited

Get the number of currently registered listeners.

Definition at line 60 of file CompositeProcessingSignalListener.cc.

{
  return m_subordinaryProcessingSignalListeners.size();
}

◆ initialize()

void initialize ( )

finalvirtual

Initialisation before the event processing starts.

Reimplemented from ProcessingSignalListener.

Definition at line 51 of file AxialStraightTrackCreator.cc.

{
  Super::initialize();
}

◆ search()

std::vector< const CDCWireHit * > search	(	const std::vector< const CDCWireHit * > &	axialWireHits,
		const CDCTrajectory2D &	guidingTrajectory2D
	)

private

Search for hits compatible with given trajectory.

Definition at line 85 of file AxialStraightTrackCreator.cc.

{
  std::vector<const CDCWireHit*> foundHits;
  for (const CDCWireHit* hit : axialWireHits) {
    const Vector2D point = hit->reconstruct2D(guidingTrajectory2D);
    float arc = guidingTrajectory2D.calcArcLength2D(point);
    if (arc < 0) continue; // No b2b tracks
    float distance = guidingTrajectory2D.getDist2D(point);
    if (std::fabs(distance) < m_param_maxDistance) {
      foundHits.push_back(hit);
    }
  }
  return foundHits;
}

◆ terminate()

void terminate ( )

overridevirtualinherited

Receive and dispatch Signal for termination of the event processing.

Reimplemented from ProcessingSignalListener.

Reimplemented in StereoHitTrackQuadTreeMatcher< Belle2::TrackFindingCDC::HyperHough >, StereoHitTrackQuadTreeMatcher< Belle2::TrackFindingCDC::QuadraticLegendre >, and StereoHitTrackQuadTreeMatcher< Belle2::TrackFindingCDC::Z0TanLambdaLegendre >.

Definition at line 47 of file CompositeProcessingSignalListener.cc.

{
  for (ProcessingSignalListener* psl : reversedRange(m_subordinaryProcessingSignalListeners)) {
    psl->terminate();
  }
  Super::terminate();
}

Member Data Documentation

◆ m_initialized

bool m_initialized = false

privateinherited

Flag to keep track whether initialization happened before.

Definition at line 52 of file ProcessingSignalListener.h.

◆ m_initializedAs

std::string m_initializedAs

privateinherited

Name of the type during initialisation.

Definition at line 58 of file ProcessingSignalListener.h.

◆ m_param_maxDistance

float m_param_maxDistance = 0.5

private

Maximum distance from hits to the track.

Definition at line 65 of file AxialStraightTrackCreator.h.

◆ m_param_minEnergy

float m_param_minEnergy = 0.050

private

ECL cluster energy threshold.

Definition at line 59 of file AxialStraightTrackCreator.h.

◆ m_param_minNHits

unsigned int m_param_minNHits = 5

private

Track number of hits threshold.

Definition at line 62 of file AxialStraightTrackCreator.h.

◆ m_subordinaryProcessingSignalListeners

std::vector<ProcessingSignalListener*> m_subordinaryProcessingSignalListeners

privateinherited

References to subordinary signal processing listener contained in this findlet.

Definition at line 52 of file CompositeProcessingSignalListener.h.

◆ m_terminated

bool m_terminated = false

privateinherited

Flag to keep track whether termination happened before.

Definition at line 55 of file ProcessingSignalListener.h.

The documentation for this class was generated from the following files:

tracking/trackFindingCDC/findlets/minimal/include/AxialStraightTrackCreator.h
tracking/trackFindingCDC/findlets/minimal/src/AxialStraightTrackCreator.cc

Public Types

Public Member Functions

Protected Types

Protected Member Functions

Private Types

Private Member Functions

Private Attributes

Detailed Description

Member Typedef Documentation

◆ IOTypes

◆ IOVectors

◆ Super

◆ ToVector

Member Function Documentation

◆ addProcessingSignalListener()

◆ apply()

◆ beginEvent()

◆ beginRun()

◆ endRun()

◆ exposeParameters()

◆ getDescription()

◆ getNProcessingSignalListener()

◆ initialize()

◆ search()

◆ terminate()

Member Data Documentation

◆ m_initialized

◆ m_initializedAs

◆ m_param_maxDistance

◆ m_param_minEnergy

◆ m_param_minNHits

◆ m_subordinaryProcessingSignalListeners

◆ m_terminated