TwoHitVirtualIPQIFilter Class Reference

Filter for two hits plus a virtual IP using QualityEstimators. More...

#include <TwoHitVirtualIPQIFilter.h>

Inheritance diagram for TwoHitVirtualIPQIFilter:

Collaboration diagram for TwoHitVirtualIPQIFilter:

Public Types
using	Object = AObject
	Type of the object to be analysed.
using	Interface = Filter< AObject >
	Mark this class as the basic interface.

Public Member Functions
TrackFindingCDC::Weight	operator() (const BasePathFilter::Object &pair) override
	Return the weight based on the quality estimator. More...
void	exposeParameters (ModuleParamList *moduleParamList, const std::string &prefix) override
	Expose the parameters.
void	initialize () override
	initialize quality estimator
void	beginRun () override
	set BField value for estimator More...
virtual bool	needsTruthInformation ()
	Indicates if the filter requires Monte Carlo information.
Weight	operator() (const Object *obj)
	Function to evaluate the object. More...
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 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 = ProcessingSignalListener
	Type of the base class.

Private Attributes
SpacePoint	m_virtualIPSpacePoint
	virtual IP SpacePoint
std::string	m_EstimationMethod = "helixFit"
	Identifier which estimation methsod to use. More...
std::string	m_MCRecoTracksStoreArrayName = "MCRecoTracks"
	sets the name of the expected StoreArray containing MCRecoTracks. Only required for MCInfo method
bool	m_MCStrictQualityEstimator = true
	Only required for MCInfo method.
std::unique_ptr< QualityEstimatorBase >	m_estimator
	pointer to the selected QualityEstimator
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

Filter for two hits plus a virtual IP using QualityEstimators.

Definition at line 22 of file TwoHitVirtualIPQIFilter.h.

Member Function Documentation

beginRun()

void beginRun ( void  )

overridevirtual

set BField value for estimator

BeamSpot from DB

Reimplemented from CompositeProcessingSignalListener.

Definition at line 36 of file TwoHitVirtualIPQIFilter.cc.

{
  const double bFieldZ = BFieldManager::getField(0, 0, 0).Z() / Unit::T;
  m_estimator->setMagneticFieldStrength(bFieldZ);
 
  if (m_EstimationMethod == "mcInfo") {
    QualityEstimatorMC* MCestimator = static_cast<QualityEstimatorMC*>(m_estimator.get());
    MCestimator->forceUpdateClusterNames();
  }
 
 
  DBObjPtr<BeamSpot> beamSpotDB;
  if (beamSpotDB.isValid()) {
    const B2Vector3D& BeamSpotPosition = (*beamSpotDB).getIPPosition();
    const TMatrixDSym posErr = (*beamSpotDB).getIPPositionCovMatrix();
    const B2Vector3D BeamSpotPositionError(sqrt(posErr[0][0]), sqrt(posErr[1][1]), sqrt(posErr[2][2]));
    m_virtualIPSpacePoint = SpacePoint(BeamSpotPosition, BeamSpotPositionError, {0.5, 0.5}, {false, false}, VxdID(0),
                                       Belle2::VXD::SensorInfoBase::VXD);
  } else {
    m_virtualIPSpacePoint = SpacePoint(B2Vector3D(0., 0., 0.), B2Vector3D(0.1, 0.1, 0.5), {0.5, 0.5}, {false, false}, VxdID(0),
                                       Belle2::VXD::SensorInfoBase::VXD);
  }
 
}

operator()() [1/2]

TrackFindingCDC::Weight operator() ( const BasePathFilter::Object &  pair )

overridevirtual

Return the weight based on the quality estimator.

Returns the QI value obtained from the fit with the chosen QualityEstimator

Reimplemented from Filter< AObject >.

Definition at line 78 of file TwoHitVirtualIPQIFilter.cc.

operator()() [2/2]

Weight operator() ( const Object *  obj )

inherited

Function to evaluate the object.

Base implementation accepts all objects, except nullptr.

Parameters

obj	The object to be accepted or rejected.

Returns

A finit float value if the object is accepted. NAN if the object is rejected. Nullptr is always rejected.

Definition at line 58 of file Filter.icc.h.

Member Data Documentation

m_EstimationMethod

std::string m_EstimationMethod = "helixFit"

private

Identifier which estimation methsod to use.

Valid identifiers are: mcInfo, tripletFit, helixFit

Definition at line 41 of file TwoHitVirtualIPQIFilter.h.

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

• tracking/vxdHoughTracking/filters/pathFilters/include/TwoHitVirtualIPQIFilter.h
• tracking/vxdHoughTracking/filters/pathFilters/src/TwoHitVirtualIPQIFilter.cc