Belle II Software development
TrackCreatorSegmentPairAutomaton Class Referenceabstract

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

#include <TrackCreatorSegmentPairAutomaton.h>

Inheritance diagram for TrackCreatorSegmentPairAutomaton:
Findlet< const CDCSegmentPair, const WeightedRelation< const CDCSegmentPair >, CDCTrack > CompositeProcessingSignalListener ProcessingSignalListener

Public Types

using IOTypes
 Types that should be served to apply on invocation.
 
using IOVectors
 Vector types that should be served to apply on invocation.
 

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
 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 CDCSegmentPairm_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
 Flag to keep track whether initialization happened before.
 
bool m_terminated
 Flag to keep track whether termination happened 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
inherited

Types that should be served to apply on invocation.

Definition at line 30 of file Findlet.h.

◆ IOVectors

using IOVectors
inherited

Vector types that should be served to apply on invocation.

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
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 53 of file CompositeProcessingSignalListener.cc.

56{
58}
Interface for a minimal algorithm part that wants to expose some parameters to a module.
Definition Findlet.h:26

◆ 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.

40{
41 // Obtain the segment pairs as pointers
42 std::vector<const CDCSegmentPair*> segmentPairPtrs =
43 as_pointers<const CDCSegmentPair>(inputSegmentPairs);
44
45 m_segmentPairPaths.clear();
46 m_cellularPathFinder.apply(segmentPairPtrs, inputSegmentPairRelations, m_segmentPairPaths);
47
48 // Reduce to plain tracks
49 CDCAxialStereoFusion fusionFitter;
50 for (const Path<const CDCSegmentPair>& segmentPairPath : m_segmentPairPaths) {
51 CDCTrajectory3D startTrajectory3D = segmentPairPath.front()->getTrajectory3D();
52 CDCTrajectory3D endTrajectory3D = segmentPairPath.back()->getTrajectory3D();
53
54 // Work around for in stable fusion fits that reach over the apogee
55 auto saverStereoApogeePositions = [&fusionFitter](const CDCSegmentPair * lhs,
56 const CDCSegmentPair * rhs) {
57 // Segment pairs are at a turning point
58 if (lhs->getFromSegment()->getISuperLayer() != rhs->getToSegment()->getISuperLayer()) return false;
59
60 // Only apply workaround if apogee is in a stereo superlayer
61 if (lhs->getToSegment()->isAxial()) return false;
62
63 // Reset critical situation to simpler fit
64 fusionFitter.fusePreliminary(*lhs);
65 fusionFitter.fusePreliminary(*rhs);
66
67 // Return false to continue looking
68 return false;
69 };
70 // return value is not needed here
71 std::ignore = std::adjacent_find(segmentPairPath.begin(), segmentPairPath.end(), saverStereoApogeePositions);
72
73 // Compute the average recohits with the preliminary fits
74 outputTracks.push_back(CDCTrack::condense(segmentPairPath));
75 CDCTrack& track = outputTracks.back();
76
77 // Set the start and end trajectory from the original fits
78 // Only necessary for the work around
79 {
80 Vector3D startPos = track.getStartTrajectory3D().getLocalOrigin();
81 startTrajectory3D.setLocalOrigin(startPos);
82 track.setStartTrajectory3D(startTrajectory3D);
83
84 Vector3D endPos = track.getEndTrajectory3D().getLocalOrigin();
85 endTrajectory3D.setLocalOrigin(endPos);
86 track.setEndTrajectory3D(endTrajectory3D);
87 }
88 for (const CDCSegmentPair* segmentPair : segmentPairPath) {
89 segmentPair->getFromSegment()->getAutomatonCell().setTakenFlag();
90 segmentPair->getToSegment()->getAutomatonCell().setTakenFlag();
91 }
92 }
93}
void fusePreliminary(const CDCSegmentPair &segmentPair)
Fit the given segment pair using the preliminary helix fit without proper covariance matrix.
const CDCSegment2D * getToSegment() const
Getter for the to segment.
const CDCSegment2D * getFromSegment() const
Getter for the from segment.
static CDCTrack condense(const Path< const CDCTrack > &trackPath)
concatenates several tracks from a path
Definition CDCTrack.cc:164
double setLocalOrigin(const Vector3D &localOrigin)
Setter for the origin of the local coordinate system.
std::vector< Path< const CDCSegmentPair > > m_segmentPairPaths
Memory for the segment pair paths generated from the graph.
MultipassCellularPathFinder< const CDCSegmentPair > m_cellularPathFinder
Instance of the cellular automaton path finder.
HepGeom::Vector3D< double > Vector3D
3D Vector
Definition Cell.h:34

◆ beginEvent()

void beginEvent ( )
overrideinherited

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

Definition at line 36 of file CompositeProcessingSignalListener.cc.

32{
35 psl->beginEvent();
36 }
37}
void beginEvent() override
Receive and dispatch signal for the start of a new event.
virtual void beginEvent()
Receive signal for the start of a new event.

◆ beginRun()

void beginRun ( )
overrideinherited

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

Definition at line 33 of file CompositeProcessingSignalListener.cc.

24{
27 psl->beginRun();
28 }
29}
void beginRun() override
Receive and dispatch signal for the beginning of a new run.
virtual void beginRun()
Receive signal for the beginning of a new run.

◆ endRun()

void endRun ( )
overrideinherited

Receive and dispatch signal for the end of the run.

Definition at line 39 of file CompositeProcessingSignalListener.cc.

40{
42 psl->endRun();
43 }
45}
void endRun() override
Receive and dispatch signal for the end of the run.
virtual void endRun()
Receive signal for the end of the run.

◆ exposeParameters()

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

Expose the parameters to a module.

Reimplemented from CompositeProcessingSignalListener.

Definition at line 31 of file TrackCreatorSegmentPairAutomaton.cc.

32{
33 m_cellularPathFinder.exposeParameters(moduleParamList, prefix);
34}

◆ 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.

27{
28 return "Constructs tracks by extraction of segment pair paths in a cellular automaton.";
29}

◆ getNProcessingSignalListener()

int getNProcessingSignalListener ( )
protectedinherited

Get the number of currently registered listeners.

Definition at line 56 of file CompositeProcessingSignalListener.cc.

61{
63}

◆ initialize()

void initialize ( )
overrideinherited

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

Definition at line 30 of file CompositeProcessingSignalListener.cc.

16{
19 psl->initialize();
20 }
21}
void initialize() override
Receive and dispatch signal before the start of the event processing.
virtual void initialize()
Receive signal before the start of the event processing.

◆ terminate()

void terminate ( )
overrideinherited

Receive and dispatch Signal for termination of the event processing.

Definition at line 42 of file CompositeProcessingSignalListener.cc.

48{
50 psl->terminate();
51 }
53}
void terminate() override
Receive and dispatch Signal for termination of the event processing.
virtual void terminate()
Receive Signal for termination of the event processing.

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
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_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 60 of file CompositeProcessingSignalListener.h.

◆ m_terminated

bool m_terminated
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: