Findlet that generates tracks based on a cellular automaton of segment pairs. More...

#include <TrackCreatorSegmentPairAutomaton.h>

Inheritance diagram for TrackCreatorSegmentPairAutomaton:

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

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

Public Member Functions
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	apply (const std::vector< CDCSegmentPair > &inputSegmentPairs, const std::vector< WeightedRelation< const CDCSegmentPair > > &inputSegmentPairRelations, std::vector< CDCTrack > &outputTracks) final
	Main function of the segment finding by the cellular automaton.

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

void	initialize () override
	Receive and dispatch signal before the start of the event processing.

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 CDCSegmentPair, const WeightedRelation< const CDCSegmentPair >, CDCTrack >
	Type of the base class.

Private Attributes
MultipassCellularPathFinder< const CDCSegmentPair >	m_cellularPathFinder
	Instance of the cellular automaton path finder.

std::vector< Path< const CDCSegmentPair > >	m_segmentPairPaths
	Memory for the segment pair paths generated from the graph.

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 happend before.

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

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

Detailed Description

Findlet that generates tracks based on a cellular automaton of segment pairs.

Definition at line 33 of file TrackCreatorSegmentPairAutomaton.h.

Member Typedef Documentation

◆ IOTypes

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

inherited

Types that should be served to apply on invokation.

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 invokation.

Definition at line 53 of file Findlet.h.

◆ Super

using Super = Findlet<const CDCSegmentPair, const WeightedRelation<const CDCSegmentPair>, CDCTrack>

private

Type of the base class.

Definition at line 38 of file TrackCreatorSegmentPairAutomaton.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< CDCSegmentPair > &	inputSegmentPairs,
		const std::vector< WeightedRelation< const CDCSegmentPair > > &	inputSegmentPairRelations,
		std::vector< CDCTrack > &	outputTracks
	)

final

Main function of the segment finding by the cellular automaton.

Definition at line 36 of file TrackCreatorSegmentPairAutomaton.cc.

{
  // Obtain the segment pairs as pointers
  std::vector<const CDCSegmentPair*> segmentPairPtrs =
    as_pointers<const CDCSegmentPair>(inputSegmentPairs);
 
  m_segmentPairPaths.clear();
  m_cellularPathFinder.apply(segmentPairPtrs, inputSegmentPairRelations, m_segmentPairPaths);
 
  // Reduce to plain tracks
  CDCAxialStereoFusion fusionFitter;
  for (const Path<const CDCSegmentPair>& segmentPairPath : m_segmentPairPaths) {
    CDCTrajectory3D startTrajectory3D = segmentPairPath.front()->getTrajectory3D();
    CDCTrajectory3D endTrajectory3D = segmentPairPath.back()->getTrajectory3D();
 
    // Work around for in stable fusion fits that reach over the apogee
    auto saverStereoApogeePositions = [&fusionFitter](const CDCSegmentPair * lhs,
    const CDCSegmentPair * rhs) {
      // Segment pairs are at a turning point
      if (lhs->getFromSegment()->getISuperLayer() != rhs->getToSegment()->getISuperLayer()) return false;
 
      // Only apply workaround if apogee is in a stereo superlayer
      if (lhs->getToSegment()->isAxial()) return false;
 
      // Reset critical situation to simpler fit
      fusionFitter.fusePreliminary(*lhs);
      fusionFitter.fusePreliminary(*rhs);
 
      // Return false to continue looking
      return false;
    };
    // return value is not needed here
    std::ignore = std::adjacent_find(segmentPairPath.begin(), segmentPairPath.end(), saverStereoApogeePositions);
 
    // Compute the average recohits with the preliminary fits
    outputTracks.push_back(CDCTrack::condense(segmentPairPath));
    CDCTrack& track = outputTracks.back();
 
    // Set the start and end trajectory from the original fits
    // Only necessary for the work around
    {
      Vector3D startPos = track.getStartTrajectory3D().getLocalOrigin();
      startTrajectory3D.setLocalOrigin(startPos);
      track.setStartTrajectory3D(startTrajectory3D);
 
      Vector3D endPos = track.getEndTrajectory3D().getLocalOrigin();
      endTrajectory3D.setLocalOrigin(endPos);
      track.setEndTrajectory3D(endTrajectory3D);
    }
    for (const CDCSegmentPair* segmentPair : segmentPairPath) {
      segmentPair->getFromSegment()->getAutomatonCell().setTakenFlag();
      segmentPair->getToSegment()->getAutomatonCell().setTakenFlag();
    }
  }
}

◆ 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 CDCSegmentPair, const WeightedRelation< const CDCSegmentPair >, CDCTrack >.

Definition at line 31 of file TrackCreatorSegmentPairAutomaton.cc.

{
  m_cellularPathFinder.exposeParameters(moduleParamList, prefix);
}

◆ getDescription()

std::string getDescription ( )

finalvirtual

Short description of the findlet.

Reimplemented from Findlet< const CDCSegmentPair, const WeightedRelation< const CDCSegmentPair >, CDCTrack >.

Definition at line 26 of file TrackCreatorSegmentPairAutomaton.cc.

{
  return "Constructs tracks by extraction of segment pair paths in a cellular automaton.";
}

◆ 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 ( )

overridevirtualinherited

Receive and dispatch signal before the start of the event processing.

Reimplemented from ProcessingSignalListener.

Definition at line 15 of file CompositeProcessingSignalListener.cc.

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

◆ 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_cellularPathFinder

MultipassCellularPathFinder<const CDCSegmentPair> m_cellularPathFinder

private

Instance of the cellular automaton path finder.

Definition at line 55 of file TrackCreatorSegmentPairAutomaton.h.

◆ m_initialized

bool m_initialized = false

privateinherited

Flag to keep track whether initialization happend 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_segmentPairPaths

std::vector<Path<const CDCSegmentPair> > m_segmentPairPaths

private

Memory for the segment pair paths generated from the graph.

Definition at line 59 of file TrackCreatorSegmentPairAutomaton.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 happend 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/TrackCreatorSegmentPairAutomaton.h
tracking/trackFindingCDC/findlets/minimal/src/TrackCreatorSegmentPairAutomaton.cc

Public Types

Public Member Functions

Protected Types

Protected Member Functions

Private Types

Private Attributes

Detailed Description

Member Typedef Documentation

◆ IOTypes

◆ IOVectors

◆ Super

◆ ToVector

Member Function Documentation

◆ addProcessingSignalListener()

◆ apply()

◆ beginEvent()

◆ beginRun()

◆ endRun()

◆ exposeParameters()

◆ getDescription()

◆ getNProcessingSignalListener()

◆ initialize()

◆ terminate()

Member Data Documentation

◆ m_cellularPathFinder

◆ m_initialized

◆ m_initializedAs

◆ m_segmentPairPaths

◆ m_subordinaryProcessingSignalListeners

◆ m_terminated