CKFToSVDFindlet Class Reference

Combinatorial Kalman Filter to extrapolate CDC Reco Tracks into the VXD (SVD) and collect space points. More...

#include <CKFToSVDFindlet.h>

Inheritance diagram for CKFToSVDFindlet:

Collaboration diagram for CKFToSVDFindlet:

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
	CKFToSVDFindlet ()
	Constructor, for setting module description and parameters.
	~CKFToSVDFindlet () override
	Default desctructor.
void	exposeParameters (ModuleParamList *moduleParamList, const std::string &prefix) override
	Expose the parameters of the sub findlets.
void	apply () override
	Do the track/hit finding/merging.
void	beginEvent () override
	Clear the object pools.
virtual std::string	getDescription ()
	Brief description of the purpose of the concret findlet.
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	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 = TrackFindingCDC::Findlet<>
	Parent class.

Private Attributes
unsigned int	m_param_minimalHitRequirement = 1
	Minimal hit requirement for the results (counted in number of space points)
TrackLoader	m_dataHandler
	Findlet for retrieving the cdc tracks and writing the result out.
SpacePointLoader	m_hitsLoader
	Findlet for loading the space points.
StateCreatorWithReversal< CKFToSVDState >	m_stateCreatorFromTracks
	Findlet for creating states out of tracks.
StateCreator< const SpacePoint, CKFToSVDState >	m_stateCreatorFromHits
	Findlet for creating states out of hits.
CKFRelationCreator< CKFToSVDState, ChooseableSVDRelationFilter >	m_relationCreator
	Findlet for creating relations between states.
TreeSearcher< CKFToSVDState, SVDStateRejecter, CKFToSVDResult >	m_treeSearchFindlet
	Findlet doing the main work: the tree finding.
OverlapResolver< ChooseableSVDResultFilter >	m_overlapResolver
	Findlet for resolving overlaps.
SpacePointTagger< CKFToSVDResult, SVDCluster >	m_spacePointTagger
	Findlet for tagging the used space points.
ResultStorer< CKFToSVDResult >	m_resultStorer
	Findlet for storing the results.
std::vector< RecoTrack * >	m_cdcRecoTrackVector
	Pointers to the CDC Reco tracks as a vector.
std::vector< const SpacePoint * >	m_spacePointVector
	Pointers to the (const) SpacePoints as a vector.
std::vector< CKFToSVDState >	m_seedStates
	States for the tracks.
std::vector< CKFToSVDState >	m_states
	States for the hits.
std::vector< TrackFindingCDC::WeightedRelation< CKFToSVDState > >	m_relations
	Relations between states.
std::vector< CKFToSVDResult >	m_results
	Vector for storing the results.
std::vector< CKFToSVDResult >	m_filteredResults
	Vector for storing the filtered results.
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

Combinatorial Kalman Filter to extrapolate CDC Reco Tracks into the VXD (SVD) and collect space points.

The implementation is split up in four parts and factored out into three sub findlets.

• Fetch the SpacePoints and the reco tracks from the data store (CDCTrackSpacePointStoreArrayHandler)
• Construct all possible candidates starting from a RecoTrack and going through the layers of the VXD collecting space points (this is handles by the TreeSearchFindlet, which works on States. The selection of space points is handled by the CDCToSpacePointHitSelector)
• Find a non-overlapping set of results (only one candidate per space point and seed) (OverlapResolverFindlet, quality is determined by a filter)
• Write the results out to the data store (again the CDCTrackSpacePointStoreArrayHandler)

If you want to reimplement this algorithm for a different purpose, you probably only have to implement a new state class and a new hit selector (and maybe the store array handling). The rest should be taken care by the framework.

Definition at line 56 of file CKFToSVDFindlet.h.

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

• tracking/ckf/svd/findlets/include/CKFToSVDFindlet.h
• tracking/ckf/svd/findlets/src/CKFToSVDFindlet.cc