An extrapolateAndUpdate filter for all CDC states. More...

#include <ExtrapolateAndUpdateCDCStateFilter.h>

Inheritance diagram for ExtrapolateAndUpdateCDCStateFilter:

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 BaseCDCStateFilter::Object &pair) final
	Extrapolate along the path (pair.first) to the CDC wireHit-state (pair.second). Return 1/chi2 if Ok, NAN otherwise.

void	exposeParameters (ModuleParamList *moduleParamList, const std::string &prefix) override
	Expose the parameters of the sub findlets.

virtual bool	needsTruthInformation ()
	Indicates if the filter requires Monte Carlo information.

Weight	operator() (const Object *obj)
	Function to evaluate the object.

virtual std::vector< float >	operator() (const std::vector< Object * > &objs)
	Function to evaluate a vector of objects Base implementation applies the function to each object.

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 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
Advancer	m_extrapolator
	Kalman filter extrapolator.

KalmanStepper< 1 >	m_updater
	Kalman filter updater.

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 happened before.

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

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

Detailed Description

An extrapolateAndUpdate filter for all CDC states.

Definition at line 26 of file ExtrapolateAndUpdateCDCStateFilter.h.

Member Typedef Documentation

◆ Interface

using Interface = Filter<AObject>

inherited

Mark this class as the basic interface.

Definition at line 38 of file Filter.dcl.h.

◆ Object

using Object = AObject

inherited

Type of the object to be analysed.

Definition at line 35 of file Filter.dcl.h.

◆ Super

using Super = ProcessingSignalListener

privateinherited

Type of the base class.

Definition at line 25 of file CompositeProcessingSignalListener.h.

Constructor & Destructor Documentation

◆ ExtrapolateAndUpdateCDCStateFilter()

ExtrapolateAndUpdateCDCStateFilter ( )

Definition at line 38 of file ExtrapolateAndUpdateCDCStateFilter.cc.

{
  addProcessingSignalListener(&m_extrapolator);
}

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);
}

◆ 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
	)

overridevirtual

Expose the parameters of the sub findlets.

Reimplemented from Filter< AObject >.

Definition at line 43 of file ExtrapolateAndUpdateCDCStateFilter.cc.

{
  m_extrapolator.exposeParameters(moduleParamList, prefix);
 
  moduleParamList->getParameter<std::string>(TrackFindingCDC::prefixed(prefix, "direction")).setDefaultValue("forward");
}

◆ 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();
  }
}

◆ needsTruthInformation()

bool needsTruthInformation

virtualinherited

Indicates if the filter requires Monte Carlo information.

Reimplemented in MCSymmetric< BaseAxialSegmentPairFilter >, MCSymmetric< BaseFacetFilter >, MCSymmetric< BaseFacetRelationFilter >, MCSymmetric< BaseSegmentPairFilter >, MCSymmetric< BaseSegmentPairRelationFilter >, MCSymmetric< BaseSegmentRelationFilter >, MCSymmetric< BaseSegmentTripleFilter >, MCSymmetric< BaseSegmentTripleRelationFilter >, MCSymmetric< BaseTrackRelationFilter >, OnVarSet< Filter< ATruthVarSet::Object > >, OnVarSet< Filter< AVarSet::Object > >, OnVarSet< BaseFacetFilter >, OnVarSet< BaseFacetRelationFilter >, OnVarSet< BaseAxialSegmentPairFilter >, OnVarSet< BaseSegmentRelationFilter >, OnVarSet< BaseTrackRelationFilter >, and OnVarSet< BaseSegmentPairRelationFilter >.

Definition at line 46 of file Filter.icc.h.

    {
      return false;
    }

◆ operator()() [1/3]

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

finalvirtual

Extrapolate along the path (pair.first) to the CDC wireHit-state (pair.second). Return 1/chi2 if Ok, NAN otherwise.

Reimplemented from Filter< AObject >.

Definition at line 50 of file ExtrapolateAndUpdateCDCStateFilter.cc.

{
  const CDCCKFPath* path = pair.first;
  CDCCKFState& state = *(pair.second);
  const CDCCKFState& lastState = path->back();
 
  genfit::MeasuredStateOnPlane mSoP = lastState.getTrackState();
 
  const TrackFindingCDC::CDCWireHit* wireHit = state.getWireHit();
  CDCRecoHit recoHit(wireHit->getHit(), nullptr);
 
  try {
    const auto& plane = recoHit.constructPlane(mSoP);
    if (std::isnan(m_extrapolator.extrapolateToPlane(mSoP, plane))) {
      return NAN;
    }
 
    const auto& measurements = recoHit.constructMeasurementsOnPlane(mSoP);
    B2ASSERT("Should be exactly two measurements", measurements.size() == 2);
 
    const auto& rightLeft = setRLInfo(mSoP, state);
 
    if (rightLeft == TrackFindingCDC::ERightLeft::c_Right) {
      state.setChi2(m_updater.kalmanStep(mSoP, *(measurements[1])));
    } else {
      state.setChi2(m_updater.kalmanStep(mSoP, *(measurements[0])));
    }
 
    delete measurements[0];
    delete measurements[1];
 
    state.setTrackState(mSoP);
    setRLInfo(mSoP, state);
 
    return 1. / state.getChi2();
  } catch (const genfit::Exception& e) {
    return NAN;
  }
}

◆ operator()() [2/3]

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.

    {
      return obj ? operator()(*obj) : NAN;
    }

◆ operator()() [3/3]

std::vector< float > operator() ( const std::vector< Object * > & objs )

virtualinherited

Function to evaluate a vector of objects Base implementation applies the function to each object.

Can be optimized for MVA filters

Parameters

objs	A vector of pointers to objects

Returns: A vector of float or NAN values. See above

Definition at line 64 of file Filter.icc.h.

    {
      std::vector<float> out;
      for (const auto& obj : objs) {
        out.push_back(operator()(obj));
      }
      return out;
    }

◆ 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_extrapolator

Advancer m_extrapolator

private

Kalman filter extrapolator.

Definition at line 38 of file ExtrapolateAndUpdateCDCStateFilter.h.

◆ m_initialized

bool m_initialized = false

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_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 happened before.

Definition at line 55 of file ProcessingSignalListener.h.

◆ m_updater

KalmanStepper<1> m_updater

private

Kalman filter updater.

Definition at line 41 of file ExtrapolateAndUpdateCDCStateFilter.h.

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

tracking/ckf/cdc/filters/states/include/ExtrapolateAndUpdateCDCStateFilter.h
tracking/ckf/cdc/filters/states/src/ExtrapolateAndUpdateCDCStateFilter.cc

Public Types

Public Member Functions

Protected Member Functions

Private Types

Private Attributes

Detailed Description

Member Typedef Documentation

◆ Interface

◆ Object

◆ Super

Constructor & Destructor Documentation

◆ ExtrapolateAndUpdateCDCStateFilter()

Member Function Documentation

◆ addProcessingSignalListener()

◆ beginEvent()

◆ beginRun()

◆ endRun()

◆ exposeParameters()

◆ getNProcessingSignalListener()

◆ initialize()

◆ needsTruthInformation()

◆ operator()() [1/3]

◆ operator()() [2/3]

◆ operator()() [3/3]

◆ terminate()

Member Data Documentation

◆ m_extrapolator

◆ m_initialized

◆ m_initializedAs

◆ m_subordinaryProcessingSignalListeners

◆ m_terminated

◆ m_updater