Class providing construction combinatorics for the facets. More...

#include <FacetCreator.h>

Inheritance diagram for FacetCreator:

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Collaboration diagram for FacetCreator:

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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
	FacetCreator ()
	Constructor adding the filter as a subordinary processing signal listener.

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< CDCWireHitCluster > &inputClusters, std::vector< CDCFacet > &facets) final
	Central function creating the hit triplets from the clusters. More...

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 CDCWireHitCluster, CDCFacet >
	Type of the base class.

Private Member Functions
void	createFacets (const std::vector< CDCWireHit * > &wireHits, const std::vector< WeightedRelation< CDCWireHit > > &wireHitRelations, std::vector< CDCFacet > &facets)
	Generates facets on the given wire hits generating neighboring triples of hits. More...

void	createFacetsForHitTriple (const CDCWireHit &startWireHit, const CDCWireHit &middleWireHit, const CDCWireHit &endWireHit, std::vector< CDCFacet > &facets)
	Generates reconstruted facets on the three given wire hits by hypothesizing over the 8 left right passage combinations. More...

Private Attributes
bool	m_param_feasibleRLOnly = true
	Parameter : Switch to apply the rl feasibility cut.

bool	m_param_updateDriftLength = true
	Parameter : Switch to reestimate the drift length.

bool	m_param_leastSquareFit = false
	Parameter : Switch to fit the facet with least square method for the drift length update.

BridgingWireHitRelationFilter	m_wireHitRelationFilter
	The filter for the hit neighborhood.

FeasibleRLFacetFilter	m_feasibleRLFacetFilter
	The feasibility filter for the right left passage information.

ChooseableFacetFilter	m_facetFilter
	The filter to be used for the facet generation.

DriftLengthEstimator	m_driftLengthEstimator
	Instance of the drift length estimator to be used.

std::vector< WeightedRelation< CDCWireHit > >	m_wireHitRelations
	Memory for the wire hit neighborhood in within a cluster.

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

Class providing construction combinatorics for the facets.

Definition at line 35 of file FacetCreator.h.

Member Function Documentation

◆ apply()

void apply	(	const std::vector< CDCWireHitCluster > &	inputClusters,
		std::vector< CDCFacet > &	facets
	)

final

Central function creating the hit triplets from the clusters.

Hit triplets are always contained within one cluster and the output hit triplets follow the order of the input clusters such that the triplets of the same cluster remain close to each other.

Definition at line 58 of file FacetCreator.cc.

 {
   int iCluster = -1;
   for (const CDCWireHitCluster& cluster : inputClusters) {
     ++iCluster;
     // Skip clusters that have been detected as background
     if (cluster.getBackgroundFlag()) {
       continue;
     }
     B2ASSERT("Expect the clusters to be sorted", std::is_sorted(cluster.begin(), cluster.end()));
  
     // Obtain the set of wire hits as references
     const std::vector<CDCWireHit*>& wireHits = cluster;
  
     // Create the neighborhood of wire hits on the cluster
     m_wireHitRelations.clear();
     RelationFilterUtil::appendUsing(m_wireHitRelationFilter, wireHits, m_wireHitRelations);
  
     B2ASSERT("Wire neighborhood is not symmetric. Check the geometry.",
              WeightedRelationUtil<CDCWireHit>::areSymmetric(m_wireHitRelations));
  
     // Create the facets
     std::size_t nBefore = facets.size();
     createFacets(cluster, m_wireHitRelations, facets);
     std::size_t nAfter = facets.size();
  
     VectorRange<CDCFacet> facetsInCluster(facets.begin() + nBefore, facets.begin() + nAfter);
     // Sort the facets in their cluster
     std::sort(facetsInCluster.begin(), facetsInCluster.end());
  
     B2ASSERT("Expected all facets to be different",
              std::adjacent_find(facetsInCluster.begin(), facetsInCluster.end()) ==
              facetsInCluster.end());
  
     for (CDCFacet& facet : facetsInCluster) {
       facet.setICluster(iCluster);
     }
   }
 }

◆ createFacets()

void createFacets	(	const std::vector< CDCWireHit * > &	wireHits,
		const std::vector< WeightedRelation< CDCWireHit > > &	wireHitRelations,
		std::vector< CDCFacet > &	facets
	)

private

Generates facets on the given wire hits generating neighboring triples of hits.

Inserts the result to the end of the GenericFacetCollection.

Definition at line 98 of file FacetCreator.cc.

◆ createFacetsForHitTriple()

void createFacetsForHitTriple	(	const CDCWireHit &	startWireHit,
		const CDCWireHit &	middleWireHit,
		const CDCWireHit &	endWireHit,
		std::vector< CDCFacet > &	facets
	)

private

Generates reconstruted facets on the three given wire hits by hypothesizing over the 8 left right passage combinations.

Inserts the result to the end of the GenericFacetCollection.

Prepare a facet - without fitted tangent lines.

Definition at line 133 of file FacetCreator.cc.

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

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

Public Types

Public Member Functions

Protected Types

Protected Member Functions

Private Types

Private Member Functions

Private Attributes

Detailed Description

Member Function Documentation

◆ apply()

◆ createFacets()

◆ createFacetsForHitTriple()