Class PXD2TrackEvent: Event data container for performance and calibration studies. More...

#include <PXD2TrackEvent.h>

Inheritance diagram for PXD2TrackEvent:

Public Types
typedef Belle2::PXD::Track_t	baseType
	The base type for a track structure.

Public Member Functions
ROOT::Math::XYZVector	getVertex () const
	Get the vertex.

const Belle2::PXD::Track_t &	getTrackP () const
	Get the track with positive charge.

const Belle2::PXD::Track_t &	getTrackM () const
	Get the track with negative charge.

virtual bool	setValues (const StoreArray< RecoTrack > &recoTracks, const std::string &recoTracksName="", const std::string &pxdInterceptsName="", const std::string &pxdTrackClustersName="PXDClustersFromTracks")
	Set values from RecoTrack collection.

void	addRelationTo (const RelationsInterface< BASE > *object, float weight=1.0, const std::string &namedRelation="") const
	Add a relation from this object to another object (with caching).

void	addRelationTo (const TObject *object, float weight=1.0, const std::string &namedRelation="") const
	Add a relation from this object to another object (no caching, can be quite slow).

void	copyRelations (const RelationsInterface< BASE > *sourceObj)
	Copies all relations of sourceObj (pointing from or to sourceObj) to this object (including weights).

template<class TO >
RelationVector< TO >	getRelationsTo (const std::string &name="", const std::string &namedRelation="") const
	Get the relations that point from this object to another store array.

template<class FROM >
RelationVector< FROM >	getRelationsFrom (const std::string &name="", const std::string &namedRelation="") const
	Get the relations that point from another store array to this object.

template<class T >
RelationVector< T >	getRelationsWith (const std::string &name="", const std::string &namedRelation="") const
	Get the relations between this object and another store array.

template<class TO >
TO *	getRelatedTo (const std::string &name="", const std::string &namedRelation="") const
	Get the object to which this object has a relation.

template<class FROM >
FROM *	getRelatedFrom (const std::string &name="", const std::string &namedRelation="") const
	Get the object from which this object has a relation.

template<class T >
T *	getRelated (const std::string &name="", const std::string &namedRelation="") const
	Get the object to or from which this object has a relation.

template<class TO >
std::pair< TO *, float >	getRelatedToWithWeight (const std::string &name="", const std::string &namedRelation="") const
	Get first related object & weight of relation pointing to an array.

template<class FROM >
std::pair< FROM *, float >	getRelatedFromWithWeight (const std::string &name="", const std::string &namedRelation="") const
	Get first related object & weight of relation pointing from an array.

template<class T >
std::pair< T *, float >	getRelatedWithWeight (const std::string &name="", const std::string &namedRelation="") const
	Get first related object & weight of relation pointing from/to an array.

virtual std::string	getName () const
	Return a short name that describes this object, e.g.

virtual std::string	getInfoHTML () const
	Return a short summary of this object's contents in HTML format.

std::string	getInfo () const
	Return a short summary of this object's contents in raw text format.

std::string	getArrayName () const
	Get name of array this object is stored in, or "" if not found.

int	getArrayIndex () const
	Returns this object's array index (in StoreArray), or -1 if not found.

Protected Member Functions
TClonesArray *	getArrayPointer () const
	Returns the pointer to the raw DataStore array holding this object (protected since these arrays are easy to misuse).

Protected Attributes
float	m_vx
	Position of the vertex in x.

float	m_vy
	Position of the vertex in y.

float	m_vz
	Position of the vertex in z.

Belle2::PXD::Track_t	m_track_p
	Track with the positive charge.

Belle2::PXD::Track_t	m_track_m
	Track with the negative charge.

Private Member Functions
	ClassDef (RelationsInterface, 0)
	defines interface for accessing relations of objects in StoreArray.

Private Attributes
DataStore::StoreEntry *	m_cacheDataStoreEntry
	Cache of the data store entry to which this object belongs.

int	m_cacheArrayIndex
	Cache of the index in the TClonesArray to which this object belongs.

Detailed Description

Class PXD2TrackEvent: Event data container for performance and calibration studies.

This class holds all required variables for TTree creation and the analysis, such that no relation lookup is needed.

Caveat: this class is not placed in the dataobjects folder to avoid dependency cycles.

Definition at line 28 of file PXD2TrackEvent.h.

Member Typedef Documentation

◆ baseType

typedef Belle2::PXD::Track_t baseType

inherited

The base type for a track structure.

Definition at line 44 of file PXD2TrackBase.h.

Member Function Documentation

◆ addRelationTo() [1/2]

void addRelationTo	(	const RelationsInterface< BASE > *	object,
		float	weight = `1.0`,
		const std::string &	namedRelation = `""`
	)		const

inlineinherited

Add a relation from this object to another object (with caching).

Parameters

object	The object to which the relation should point.
weight	The weight of the relation.
namedRelation	Additional name for the relation, or "" for the default naming

Definition at line 142 of file RelationsObject.h.

    {
      if (object)
        DataStore::Instance().addRelation(this, m_cacheDataStoreEntry, m_cacheArrayIndex,
                                          object, object->m_cacheDataStoreEntry, object->m_cacheArrayIndex, weight, namedRelation);
    }

◆ addRelationTo() [2/2]

void addRelationTo	(	const TObject *	object,
		float	weight = `1.0`,
		const std::string &	namedRelation = `""`
	)		const

inlineinherited

Add a relation from this object to another object (no caching, can be quite slow).

Parameters

object	The object to which the relation should point.
weight	The weight of the relation.
namedRelation	Additional name for the relation, or "" for the default naming

Definition at line 155 of file RelationsObject.h.

    {
      StoreEntry* toEntry = nullptr;
      int toIndex = -1;
      DataStore::Instance().addRelation(this, m_cacheDataStoreEntry, m_cacheArrayIndex, object, toEntry, toIndex, weight, namedRelation);
    }

◆ copyRelations()

void copyRelations ( const RelationsInterface< BASE > * sourceObj )

inlineinherited

Copies all relations of sourceObj (pointing from or to sourceObj) to this object (including weights).

Useful if you want to make a complete copy of a StoreArray object to make modifications to it, but retain all information on linked objects.

Note: this only works if sourceObj inherits from the same base (e.g. RelationsObject), and only for related objects that also inherit from the same base.

Definition at line 170 of file RelationsObject.h.

    {
      if (!sourceObj)
        return;
      auto fromRels = sourceObj->getRelationsFrom<RelationsInterface<BASE>>("ALL");
      for (unsigned int iRel = 0; iRel < fromRels.size(); iRel++) {
        fromRels.object(iRel)->addRelationTo(this, fromRels.weight(iRel));
      }
 
      auto toRels = sourceObj->getRelationsTo<RelationsInterface<BASE>>("ALL");
      for (unsigned int iRel = 0; iRel < toRels.size(); iRel++) {
        this->addRelationTo(toRels.object(iRel), toRels.weight(iRel));
      }
    }

◆ getArrayIndex()

int getArrayIndex ( ) const

inlineinherited

Returns this object's array index (in StoreArray), or -1 if not found.

Definition at line 385 of file RelationsObject.h.

    {
      DataStore::Instance().findStoreEntry(this, m_cacheDataStoreEntry, m_cacheArrayIndex);
      return m_cacheArrayIndex;
    }

◆ getArrayName()

std::string getArrayName ( ) const

inlineinherited

Get name of array this object is stored in, or "" if not found.

Definition at line 377 of file RelationsObject.h.

    {
      DataStore::Instance().findStoreEntry(this, m_cacheDataStoreEntry, m_cacheArrayIndex);
      return m_cacheDataStoreEntry ? m_cacheDataStoreEntry->name : "";
    }

◆ getArrayPointer()

TClonesArray * getArrayPointer ( ) const

inlineprotectedinherited

Returns the pointer to the raw DataStore array holding this object (protected since these arrays are easy to misuse).

Definition at line 418 of file RelationsObject.h.

    {
      DataStore::Instance().findStoreEntry(this, m_cacheDataStoreEntry, m_cacheArrayIndex);
      if (!m_cacheDataStoreEntry)
        return nullptr;
      return m_cacheDataStoreEntry->getPtrAsArray();
    }

◆ getInfo()

std::string getInfo ( ) const

inlineinherited

Return a short summary of this object's contents in raw text format.

Returns the contents of getInfoHTML() while translating line-breaks etc.

Note: : You don't need to implement this function (it's not virtual), getInfoHTML() is enough.

Definition at line 370 of file RelationsObject.h.

    {
      return _RelationsInterfaceImpl::htmlToPlainText(getInfoHTML());
    }

◆ getInfoHTML()

virtual std::string getInfoHTML ( ) const

inlinevirtualinherited

Return a short summary of this object's contents in HTML format.

Reimplement this in your own class to provide useful output for display or debugging purposes. For example, you might do something like:

std::stringstream out;
out << "<b>PDG</b>: " << m_pdg << "<br>";
out << "<b>Covariance Matrix</b>: " << HTML::getString(getCovariance5()) << "<br>";
return out.str();

See also: Particle::getInfoHTML() for a more complex example.; HTML for some utility functions.; Use getInfo() to get a raw text version of this output.

Reimplemented in Particle, Cluster, MCParticle, PIDLikelihood, SoftwareTriggerResult, Track, TrackFitResult, TRGSummary, and RecoTrack.

Definition at line 362 of file RelationsObject.h.

362{ return ""; }

◆ getName()

virtual std::string getName ( ) const

inlinevirtualinherited

Return a short name that describes this object, e.g.

pi+ for an MCParticle.

Reimplemented in Particle, MCParticle, and SpacePoint.

Definition at line 344 of file RelationsObject.h.

344{ return ""; }

◆ getRelated()

T * getRelated	(	const std::string &	name = `""`,
		const std::string &	namedRelation = `""`
	)		const

inlineinherited

Get the object to or from which this object has a relation.

Template Parameters

T	The class of objects to or from which the relation points.

Parameters

name	The name of the store array to or from which the relation points. If empty the default store array name for class T will be used. If the special name "ALL" is given all store arrays containing objects of type T are considered.
namedRelation	Additional name for the relation, or "" for the default naming

Returns: The first related object or a null pointer.

Definition at line 278 of file RelationsObject.h.

    {
      return static_cast<T*>(DataStore::Instance().getRelationWith(DataStore::c_BothSides, this, m_cacheDataStoreEntry, m_cacheArrayIndex,
                             T::Class(), name, namedRelation).object);
    }

◆ getRelatedFrom()

FROM * getRelatedFrom	(	const std::string &	name = `""`,
		const std::string &	namedRelation = `""`
	)		const

inlineinherited

Get the object from which this object has a relation.

Template Parameters

FROM	The class of objects from which the relation points.

Parameters

name	The name of the store array from which the relation points. If empty the default store array name for class FROM will be used. If the special name "ALL" is given all store arrays containing objects of type FROM are considered.
namedRelation	Additional name for the relation, or "" for the default naming

Returns: The first related object or a null pointer.

Definition at line 263 of file RelationsObject.h.

    {
      return static_cast<FROM*>(DataStore::Instance().getRelationWith(DataStore::c_FromSide, this, m_cacheDataStoreEntry,
                                m_cacheArrayIndex, FROM::Class(), name, namedRelation).object);
    }

◆ getRelatedFromWithWeight()

std::pair< FROM *, float > getRelatedFromWithWeight	(	const std::string &	name = `""`,
		const std::string &	namedRelation = `""`
	)		const

inlineinherited

Get first related object & weight of relation pointing from an array.

Template Parameters

FROM	The class of objects from which the relation points.

Parameters

name	The name of the store array from which the relation points. If empty the default store array name for class FROM will be used. If the special name "ALL" is given all store arrays containing objects of type FROM are considered.
namedRelation	Additional name for the relation, or "" for the default naming

Returns: Pair of first related object and the relation weight, or (NULL, 1.0) if none found.

Definition at line 314 of file RelationsObject.h.

    {
      RelationEntry entry = DataStore::Instance().getRelationWith(DataStore::c_FromSide, this, m_cacheDataStoreEntry, m_cacheArrayIndex,
                                                                  FROM::Class(), name, namedRelation);
      return std::make_pair(static_cast<FROM*>(entry.object), entry.weight);
    }

◆ getRelatedTo()

TO * getRelatedTo	(	const std::string &	name = `""`,
		const std::string &	namedRelation = `""`
	)		const

inlineinherited

Get the object to which this object has a relation.

Template Parameters

TO	The class of objects to which the relation points.

Parameters

name	The name of the store array to which the relation points. If empty the default store array name for class TO will be used. If the special name "ALL" is given all store arrays containing objects of type TO are considered.
namedRelation	Additional name for the relation, or "" for the default naming

Returns: The first related object or a null pointer.

Definition at line 248 of file RelationsObject.h.

    {
      return static_cast<TO*>(DataStore::Instance().getRelationWith(DataStore::c_ToSide, this, m_cacheDataStoreEntry, m_cacheArrayIndex,
                              TO::Class(), name, namedRelation).object);
    }

◆ getRelatedToWithWeight()

std::pair< TO *, float > getRelatedToWithWeight	(	const std::string &	name = `""`,
		const std::string &	namedRelation = `""`
	)		const

inlineinherited

Get first related object & weight of relation pointing to an array.

Template Parameters

TO	The class of objects to which the relation points.

Parameters

name	The name of the store array to which the relation points. If empty the default store array name for class TO will be used. If the special name "ALL" is given all store arrays containing objects of type TO are considered.
namedRelation	Additional name for the relation, or "" for the default naming

Returns: Pair of first related object and the relation weight, or (NULL, 1.0) if none found.

Definition at line 297 of file RelationsObject.h.

    {
      RelationEntry entry = DataStore::Instance().getRelationWith(DataStore::c_ToSide, this, m_cacheDataStoreEntry, m_cacheArrayIndex,
                                                                  TO::Class(), name, namedRelation);
      return std::make_pair(static_cast<TO*>(entry.object), entry.weight);
    }

◆ getRelatedWithWeight()

std::pair< T *, float > getRelatedWithWeight	(	const std::string &	name = `""`,
		const std::string &	namedRelation = `""`
	)		const

inlineinherited

Get first related object & weight of relation pointing from/to an array.

Template Parameters

T	The class of objects to or from which the relation points.

Parameters

name	The name of the store array to or from which the relation points. If empty the default store array name for class T will be used. If the special name "ALL" is given all store arrays containing objects of type T are considered.
namedRelation	Additional name for the relation, or "" for the default naming

Returns: Pair of first related object and the relation weight, or (NULL, 1.0) if none found.

Definition at line 331 of file RelationsObject.h.

    {
      RelationEntry entry = DataStore::Instance().getRelationWith(DataStore::c_BothSides, this, m_cacheDataStoreEntry, m_cacheArrayIndex,
                                                                  T::Class(), name, namedRelation);
      return std::make_pair(static_cast<T*>(entry.object), entry.weight);
    }

◆ getRelationsFrom()

RelationVector< FROM > getRelationsFrom	(	const std::string &	name = `""`,
		const std::string &	namedRelation = `""`
	)		const

inlineinherited

Get the relations that point from another store array to this object.

Template Parameters

FROM	The class of objects from which the relations point.

Parameters

name	The name of the store array from which the relations point. If empty the default store array name for class FROM will be used. If the special name "ALL" is given all store arrays containing objects of type FROM are considered.
namedRelation	Additional name for the relation, or "" for the default naming

Returns: A vector of relations.

Definition at line 212 of file RelationsObject.h.

    {
      return RelationVector<FROM>(DataStore::Instance().getRelationsWith(DataStore::c_FromSide, this, m_cacheDataStoreEntry,
                                  m_cacheArrayIndex, FROM::Class(), name, namedRelation));
    }

◆ getRelationsTo()

RelationVector< TO > getRelationsTo	(	const std::string &	name = `""`,
		const std::string &	namedRelation = `""`
	)		const

inlineinherited

Get the relations that point from this object to another store array.

Template Parameters

TO	The class of objects to which the relations point.

Parameters

name	The name of the store array to which the relations point. If empty the default store array name for class TO will be used. If the special name "ALL" is given all store arrays containing objects of type TO are considered.
namedRelation	Additional name for the relation, or "" for the default naming

Returns: A vector of relations.

Definition at line 197 of file RelationsObject.h.

    {
      return RelationVector<TO>(DataStore::Instance().getRelationsWith(DataStore::c_ToSide, this, m_cacheDataStoreEntry,
                                m_cacheArrayIndex, TO::Class(), name, namedRelation));
    }

◆ getRelationsWith()

RelationVector< T > getRelationsWith	(	const std::string &	name = `""`,
		const std::string &	namedRelation = `""`
	)		const

inlineinherited

Get the relations between this object and another store array.

Relations in both directions are returned.

Template Parameters

T	The class of objects to or from which the relations point.

Parameters

name	The name of the store array to or from which the relations point. If empty the default store array name for class T will be used. If the special name "ALL" is given all store arrays containing objects of type T are considered.
namedRelation	Additional name for the relation, or "" for the default naming

Returns: A vector of relations.

Definition at line 230 of file RelationsObject.h.

    {
      return RelationVector<T>(DataStore::Instance().getRelationsWith(DataStore::c_BothSides, this, m_cacheDataStoreEntry,
                               m_cacheArrayIndex, T::Class(), name, namedRelation));
    }

◆ getTrackM()

const Belle2::PXD::Track_t & getTrackM ( ) const

inlineinherited

Get the track with negative charge.

Returns: track struct with negative charge.

Definition at line 77 of file PXD2TrackBase.h.

77{ return m_track_m; }

Belle2::PXD2TrackBase< Belle2::PXD::Track_t >::m_track_m

Belle2::PXD::Track_t m_track_m

Track with the negative charge.

Definition: PXD2TrackBase.h:98

◆ getTrackP()

const Belle2::PXD::Track_t & getTrackP ( ) const

inlineinherited

Get the track with positive charge.

Returns: track struct with positive charge.

Definition at line 72 of file PXD2TrackBase.h.

72{ return m_track_p; }

Belle2::PXD2TrackBase< Belle2::PXD::Track_t >::m_track_p

Belle2::PXD::Track_t m_track_p

Track with the positive charge.

Definition: PXD2TrackBase.h:97

◆ getVertex()

ROOT::Math::XYZVector getVertex ( ) const

inlineinherited

Get the vertex.

Returns: Vertex of the 2 tracks.

Definition at line 67 of file PXD2TrackBase.h.

67{ return ROOT::Math::XYZVector(m_vx, m_vy, m_vz); }

◆ setValues()

bool setValues	(	const StoreArray< RecoTrack > &	recoTracks,
		const std::string &	recoTracksName = `""`,
		const std::string &	pxdInterceptsName = `""`,
		const std::string &	pxdTrackClustersName = `"PXDClustersFromTracks"`
	)

virtualinherited

Set values from RecoTrack collection.

Parameters

recoTracks	StoreArray of RecoTracks.
recoTracksName	name of the related array of RecoTracks.
pxdInterceptsName	name of the related array of PXDIntercepts.
pxdTrackClustersName	name of the related array of PXDClustersFromTracks.

Returns: setting status true for success.

Definition at line 87 of file PXD2TrackBase.h.

  {
    // Exactly 2 tracks
    //if(recoTracks.size() != 2) return false;
    if (!recoTracks.isValid() or recoTracks.getEntries() != 2) return false;
 
    // Valid Tracks
    auto track1Ptr = recoTracks[0]->getRelated<Track>("Tracks");
    auto track2Ptr = recoTracks[1]->getRelated<Track>("Tracks");
    if (!track1Ptr or !track2Ptr) return false;
 
    // Valid trackFitResults
    auto tfr1Ptr = track1Ptr->getTrackFitResultWithClosestMass(Const::pion);
    auto tfr2Ptr = track2Ptr->getTrackFitResultWithClosestMass(Const::pion);
    if (!tfr1Ptr or !tfr2Ptr) return false;
 
    // Valid P Values
    if (tfr1Ptr->getPValue() <= 0 or tfr2Ptr->getPValue() <= 0) return false;
 
    // Opposite charges
    if (tfr1Ptr->getChargeSign() * tfr2Ptr->getChargeSign() >= 0) return false;
 
    // Setup Rave vertex fitter
    auto bField = BFieldManager::getFieldInTesla(ROOT::Math::XYZVector(0, 0, 0)).Z();
    B2DEBUG(20, "B Field = " << bField << " T");
    analysis::RaveSetup::initialize(1, bField);
    analysis::RaveVertexFitter rvf;
    try {
      rvf.addTrack(tfr1Ptr);
      rvf.addTrack(tfr2Ptr);
    }  catch (...) {
      B2DEBUG(20, "Adding tracks to RaveVertexFitter failed.");
      return false;
    }
    if (rvf.fit() == 0) return false;
    // get vertex from fitting
    auto vertex = rvf.getPos();
    // Reset RAVE
    analysis::RaveSetup::getInstance()->reset();
 
    // Set vertex
    m_vx = vertex.X();
    m_vy = vertex.Y();
    m_vz = vertex.Z();
    B2DEBUG(20, "Vertex = (" << m_vx
            << ", " << m_vy
            << ", " << m_vz
            << ")");
 
    // Set track containers
    DBObjPtr<BeamSpot> beamSpotDB; // beam spot is required to correct d0/z0
    auto ip = ROOT::Math::XYZVector(beamSpotDB->getIPPosition());
    if (tfr1Ptr->getChargeSign() > 0) {
      m_track_p.setValues(*recoTracks[0], ip, recoTracksName, pxdInterceptsName, pxdTrackClustersName);
      m_track_m.setValues(*recoTracks[1], ip, recoTracksName, pxdInterceptsName, pxdTrackClustersName);
    } else {
      m_track_p.setValues(*recoTracks[1], ip, recoTracksName, pxdInterceptsName, pxdTrackClustersName);
      m_track_m.setValues(*recoTracks[0], ip, recoTracksName, pxdInterceptsName, pxdTrackClustersName);
    }
    return true;
  }

Member Data Documentation

◆ m_cacheArrayIndex

int m_cacheArrayIndex

mutableprivateinherited

Cache of the index in the TClonesArray to which this object belongs.

Definition at line 432 of file RelationsObject.h.

◆ m_cacheDataStoreEntry

DataStore::StoreEntry* m_cacheDataStoreEntry

mutableprivateinherited

Cache of the data store entry to which this object belongs.

Definition at line 429 of file RelationsObject.h.

◆ m_track_m

Belle2::PXD::Track_t m_track_m

protectedinherited

Track with the negative charge.

Definition at line 98 of file PXD2TrackBase.h.

◆ m_track_p

Belle2::PXD::Track_t m_track_p

protectedinherited

Track with the positive charge.

Definition at line 97 of file PXD2TrackBase.h.

◆ m_vx

float m_vx

protectedinherited

Position of the vertex in x.

Definition at line 94 of file PXD2TrackBase.h.

◆ m_vy

float m_vy

protectedinherited

Position of the vertex in y.

Definition at line 95 of file PXD2TrackBase.h.

◆ m_vz

float m_vz

protectedinherited

Position of the vertex in z.

Definition at line 96 of file PXD2TrackBase.h.

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

pxd/utilities/include/PXD2TrackEvent.h

Public Types

Public Member Functions

Protected Member Functions

Protected Attributes

Private Member Functions

Private Attributes

Detailed Description

Member Typedef Documentation

◆ baseType

Member Function Documentation

◆ addRelationTo() [1/2]

◆ addRelationTo() [2/2]

◆ copyRelations()

◆ getArrayIndex()

◆ getArrayName()

◆ getArrayPointer()

◆ getInfo()

◆ getInfoHTML()

◆ getName()

◆ getRelated()

◆ getRelatedFrom()

◆ getRelatedFromWithWeight()

◆ getRelatedTo()

◆ getRelatedToWithWeight()

◆ getRelatedWithWeight()

◆ getRelationsFrom()

◆ getRelationsTo()

◆ getRelationsWith()

◆ getTrackM()

◆ getTrackP()

◆ getVertex()

◆ setValues()

Member Data Documentation

◆ m_cacheArrayIndex

◆ m_cacheDataStoreEntry

◆ m_track_m

◆ m_track_p

◆ m_vx

◆ m_vy

◆ m_vz