Base filter for CKF SVD states. More...

#include <SensorSVDPairFilter.h>

Inheritance diagram for SensorSVDPairFilter:

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 std::pair< const CKFToSVDState , const CKFToSVDState > &relation) override
	Return the weight based on layer.

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

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

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

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
double	m_param_PhiRecoTrackToHitCut = 0.5
	Pre-filter relations in phi between seed states and hit states.

double	m_param_PhiHitHitCut = 1.14159265359
	Pre-filter relations in theta between hit states.

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

Base filter for CKF SVD states.

Definition at line 19 of file SensorSVDPairFilter.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.

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.

Reimplemented from Filter< AObject >.

Definition at line 76 of file SensorSVDPairFilter.cc.

{
  moduleParamList->addParameter(TrackFindingCDC::prefixed(prefix, "phiRecoTrackToHitCut"), m_param_PhiRecoTrackToHitCut,
                                "Cut in phi for the difference between RecoTrack (seed) mSoP and current hit-based state.", m_param_PhiRecoTrackToHitCut);
  moduleParamList->addParameter(TrackFindingCDC::prefixed(prefix, "phiHitHitCut"), m_param_PhiHitHitCut,
                                "Cut in phi between two hit-based states.", m_param_PhiHitHitCut);
}

◆ 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()() [1/4]

Weight operator() ( const Object & obj )

virtualinherited

Function to evaluate the object.

Base implementation accepts all objects.

Parameters

obj	The object to be accepted or rejected.

Returns: A finite float value if the object is accepted. NAN if the object is rejected.

Reimplemented in SeedChargeCDCPathFilter, SizeCDCPathFilter, ArcLengthBasedCDCfromEclPathPairFilter, ArcLengthBasedCDCPathPairFilter, Chi2BasedCDCPathPairFilter, DistanceBasedCDCPathPairFilter, DuplicateCDCPathPairFilter, HitDistanceBasedCDCPathPairFilter, MCTruthCDCPathPairFilter, DistanceCDCStateFilter, ExtrapolateAndUpdateCDCStateFilter, MCTruthCDCStateFilter, MCTruthEclSeedFilter, RoughCDCfromEclStateFilter, RoughCDCStateFilter, FiveHitFilter, FourHitFilter, QualityIndicatorFilter, ThreeHitFilter, TwoHitVirtualIPFilter, TwoHitVirtualIPQIFilter, SimplePXDStateFilter, AllPXDStateFilter, ResidualSVDStateFilter, SimpleSVDStateFilter, AllSVDStateFilter, and RelationFilter< AObject >.

Definition at line 52 of file Filter.icc.h.

    {
      return 1;
    }

◆ operator()() [2/4]

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()() [3/4]

TrackFindingCDC::Weight operator() ( const std::pair< const CKFToSVDState *, const CKFToSVDState * > & relation )

override

Return the weight based on layer.

Definition at line 20 of file SensorSVDPairFilter.cc.

{
  const CKFToSVDState& fromState = *(relation.first);
  const CKFToSVDState& toState = *(relation.second);
 
  const CKFToSVDState::stateCache& fromStateCache = fromState.getStateCache();
  const CKFToSVDState::stateCache& toStateCache = toState.getStateCache();
 
  B2ASSERT("You have filled the wrong states into this!", toStateCache.isHitState);
 
  if (not fromStateCache.isHitState) {
    // We are coming from a CDC track, so we can use its position to only look for matching ladders
    // This is done with the sensorCenterPhi, using the state's phi (and/or theta) wouldn't be a SensorFilter anymore.
    float phiDiff = fromStateCache.phi - toStateCache.sensorCenterPhi;
    while (phiDiff > M_PI) phiDiff -= 2. * M_PI;
    while (phiDiff < -M_PI) phiDiff += 2. * M_PI;
 
    if (fabs(phiDiff) < static_cast<float>(m_param_PhiRecoTrackToHitCut)) {
      return 1.0;
    }
    // If the current state (fromState) is a RecoTrack-based state, but no relations could be created
    // don't proceed but return
    return NAN;
  }
 
  // On same layer we already know from LayerSVDRelationFilter, that we only deal with overlaps in r-phi.
  // So it's sufficient here to check for same layer number to accept states in the overlap region.
  if (fromStateCache.geoLayer == toStateCache.geoLayer and
      fromStateCache.sensorID.getSensorNumber() == toStateCache.sensorID.getSensorNumber()) {
    // TODO: Also check for sensors?
    return 1.0;
  }
 
  // Next layer is not an overlap one, so we can just return all hits of the next layer(s)
  // that are close enough in phi. No cut in theta here since this is the SensorSVXDPairFilter,
  // a cut in theta is used in the DistanceSVDPairFilter
  const int sensorNumberDifference =
    static_cast<int>(fromStateCache.sensorID.getSensorNumber()) - static_cast<int>(toStateCache.sensorID.getSensorNumber());
  const int layerNumberDifference =
    static_cast<int>(fromStateCache.geoLayer) - static_cast<int>(toStateCache.geoLayer);
 
  if ((abs(sensorNumberDifference) > 1 and layerNumberDifference == 1) or (abs(sensorNumberDifference) > 2)) {
    return NAN;
  }
 
  float phiDiff = fromStateCache.sensorCenterPhi - toStateCache.sensorCenterPhi;
  while (phiDiff > M_PI) phiDiff -= 2. * M_PI;
  while (phiDiff < -M_PI) phiDiff += 2. * M_PI;
 
  if (fabs(phiDiff) < static_cast<float>(m_param_PhiHitHitCut)) {
    return 1.0;
  }
 
  return NAN;
}

◆ operator()() [4/4]

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_initialized

bool m_initialized = false

privateinherited

Flag to keep track whether initialization happend 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_param_PhiHitHitCut

double m_param_PhiHitHitCut = 1.14159265359

private

Pre-filter relations in theta between hit states.

Definition at line 30 of file SensorSVDPairFilter.h.

◆ m_param_PhiRecoTrackToHitCut

double m_param_PhiRecoTrackToHitCut = 0.5

private

Pre-filter relations in phi between seed states and hit states.

Definition at line 28 of file SensorSVDPairFilter.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 happend before.

Definition at line 55 of file ProcessingSignalListener.h.

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

tracking/ckf/svd/filters/relations/include/SensorSVDPairFilter.h
tracking/ckf/svd/filters/relations/src/SensorSVDPairFilter.cc

Public Types

Public Member Functions

Protected Member Functions

Private Types

Private Attributes

Detailed Description

Member Typedef Documentation

◆ Interface

◆ Object

◆ Super

Member Function Documentation

◆ addProcessingSignalListener()

◆ beginEvent()

◆ beginRun()

◆ endRun()

◆ exposeParameters()

◆ getNProcessingSignalListener()

◆ initialize()

◆ needsTruthInformation()

◆ operator()() [1/4]

◆ operator()() [2/4]

◆ operator()() [3/4]

◆ operator()() [4/4]

◆ terminate()

Member Data Documentation

◆ m_initialized

◆ m_initializedAs

◆ m_param_PhiHitHitCut

◆ m_param_PhiRecoTrackToHitCut

◆ m_subordinaryProcessingSignalListeners

◆ m_terminated