The InDetAlignTrackSelTool serves to select high quality tracks for the inner detector (Pixel+SCT) alignment algorithms. More...

#include <InDetAlignTrackSelTool.h>

Inheritance diagram for InDetAlignTrackSelTool:

Collaboration diagram for InDetAlignTrackSelTool:

Public Member Functions
	InDetAlignTrackSelTool (const std::string &type, const std::string &name, const IInterface *parent)
virtual	~InDetAlignTrackSelTool ()
virtual StatusCode	initialize ()
virtual StatusCode	finalize ()
virtual int	getStatus (const EventContext &ctx, const Trk::Track &) const
ServiceHandle< StoreGateSvc > &	evtStore ()
	The standard `StoreGateSvc` (event store) Returns (kind of) a pointer to the `StoreGateSvc`.
const ServiceHandle< StoreGateSvc > &	detStore () const
	The standard `StoreGateSvc/DetectorStore` Returns (kind of) a pointer to the `StoreGateSvc`.
virtual StatusCode	sysInitialize () override
	Perform system initialization for an algorithm.
virtual StatusCode	sysStart () override
	Handle START transition.
virtual std::vector< Gaudi::DataHandle * >	inputHandles () const override
	Return this algorithm's input handles.
virtual std::vector< Gaudi::DataHandle * >	outputHandles () const override
	Return this algorithm's output handles.
Gaudi::Details::PropertyBase &	declareProperty (Gaudi::Property< T, V, H > &t)
void	updateVHKA (Gaudi::Details::PropertyBase &)
MsgStream &	msg () const
bool	msgLvl (const MSG::Level lvl) const

Static Public Member Functions
static const InterfaceID &	interfaceID ()

Protected Member Functions
void	renounceArray (SG::VarHandleKeyArray &handlesArray)
	remove all handles from I/O resolution
std::enable_if_t< std::is_void_v< std::result_of_t< decltype(&T::renounce)(T)> > &&!std::is_base_of_v< SG::VarHandleKeyArray, T > &&std::is_base_of_v< Gaudi::DataHandle, T >, void >	renounce (T &h)
void	extraDeps_update_handler (Gaudi::Details::PropertyBase &ExtraDeps)
	Add StoreName to extra input/output deps as needed.

Private Types
typedef ServiceHandle< StoreGateSvc >	StoreGateSvc_t

Private Member Functions
double	Momentum (const Trk::Track &) const
double	Pt (const Trk::Track &) const
int	nShared (const EventContext &ctx, const Trk::Track &) const
int	nHoles (const EventContext &ctx, const Trk::Track &) const
double	chi2Prob (const Trk::Track &) const
Gaudi::Details::PropertyBase &	declareGaudiProperty (Gaudi::Property< T, V, H > &hndl, const SG::VarHandleKeyType &)
	specialization for handling Gaudi::Property<SG::VarHandleKey>

Private Attributes
ToolHandle< Trk::ITrackParticleCreatorTool >	m_particleCreator
	Pointer to track particle creator tool.
double	m_minMomentum
	Minimum value of the momentum of the track.
double	m_minPt
	Minimum value of the transverse momentum of the track.
int	m_maxShared
	Maximum number of shared hits of the track.
int	m_maxHoles
	Maximum number of holes of the track.
double	m_minChi2Prob
	Minimum value of the chi2 Probality of the track.
StoreGateSvc_t	m_evtStore
	Pointer to StoreGate (event store by default).
StoreGateSvc_t	m_detStore
	Pointer to StoreGate (detector store by default).
std::vector< SG::VarHandleKeyArray * >	m_vhka
bool	m_varHandleArraysDeclared

Detailed Description

The InDetAlignTrackSelTool serves to select high quality tracks for the inner detector (Pixel+SCT) alignment algorithms.

This AlgTool provides a track selection based on the following cut variables: Momentum, pt, number of shared hits, number of holes and chi2 probability. Returns 0 in case a track is not accepted, otherwise 1

Author: Sergio Gonzalez Sevilla, Miguel Olivo Gomez http://consult.cern.ch/xwho

Definition at line 37 of file InDetAlignTrackSelTool.h.

Member Typedef Documentation

◆ StoreGateSvc_t

typedef ServiceHandle<StoreGateSvc> AthCommonDataStore< AthCommonMsg< AlgTool > >::StoreGateSvc_t

privateinherited

Definition at line 388 of file AthCommonDataStore.h.

Constructor & Destructor Documentation

◆ InDetAlignTrackSelTool()

InDetAlignTrackSelTool::InDetAlignTrackSelTool	(	const std::string &	type,
		const std::string &	name,
		const IInterface *	parent )

Definition at line 25 of file InDetAlignTrackSelTool.cxx.

  : AthAlgTool(type,name,parent),
    m_particleCreator("Trk::TrackParticleCreatorTool/TrackParticleCreatorTool", this),
    m_minMomentum(0),
    m_minPt(2),
    m_maxShared(0),
    m_maxHoles(1),
    m_minChi2Prob(0.2)
{
  declareInterface<IInDetAlignTrackSelTool>(this);
  declareProperty("MinMomentum"        , m_minMomentum);
  declareProperty("MinPt"              , m_minPt);
  declareProperty("MaxShared"          , m_maxShared);
  declareProperty("MaxHoles"           , m_maxHoles);
  declareProperty("MinChi2Prob"        , m_minChi2Prob);
 
  // Tools
  declareProperty("TrackParticleCreatorTool", m_particleCreator,
                  "tool to build TrackParticle");
}

◆ ~InDetAlignTrackSelTool()

InDetAlignTrackSelTool::~InDetAlignTrackSelTool ( )

virtual

Definition at line 49 of file InDetAlignTrackSelTool.cxx.

50{}

Member Function Documentation

◆ chi2Prob()

double InDetAlignTrackSelTool::chi2Prob ( const Trk::Track & track ) const

private

Definition at line 172 of file InDetAlignTrackSelTool.cxx.

                                                                   {
  ATH_MSG_DEBUG( "in chi2Prob()" ) ;
  double chi2Prob=0.;
 
  // get fit quality and chi2 probability of track
  // chi2Prob = TMath::Prob(chi2,DoF) ROOT function
  const Trk::FitQuality* fitQual = track.fitQuality();
 
  if (fitQual==nullptr) {
    ATH_MSG_ERROR( "No fit quality assigned to the track" ) ; 
    chi2Prob = -1e12; // return big value
  }
  else {
    if (fitQual->chiSquared() > 0. && fitQual->numberDoF() > 0) {
      Genfun::CumulativeChiSquare probabilityFunction( fitQual->numberDoF() );
      chi2Prob = 1 - probabilityFunction( fitQual->chiSquared() );
    }
  }
 
  return chi2Prob;
}

◆ declareGaudiProperty()

Gaudi::Details::PropertyBase & AthCommonDataStore< AthCommonMsg< AlgTool > >::declareGaudiProperty	(	Gaudi::Property< T, V, H > &	hndl,
		const SG::VarHandleKeyType &	)

inlineprivateinherited

specialization for handling Gaudi::Property<SG::VarHandleKey>

Definition at line 156 of file AthCommonDataStore.h.

  {
    return *AthCommonDataStore<PBASE>::declareProperty(hndl.name(),
                                                       hndl.value(), 
                                                       hndl.documentation());
 
  }

◆ declareProperty()

Gaudi::Details::PropertyBase & AthCommonDataStore< AthCommonMsg< AlgTool > >::declareProperty ( Gaudi::Property< T, V, H > & t )

inlineinherited

Definition at line 145 of file AthCommonDataStore.h.

                                                                     {
    typedef typename SG::HandleClassifier<T>::type htype;
    return AthCommonDataStore<PBASE>::declareGaudiProperty(t, htype());
  }

◆ detStore()

const ServiceHandle< StoreGateSvc > & AthCommonDataStore< AthCommonMsg< AlgTool > >::detStore ( ) const

inlineinherited

The standard StoreGateSvc/DetectorStore Returns (kind of) a pointer to the StoreGateSvc.

Definition at line 95 of file AthCommonDataStore.h.

95{ return m_detStore; }

AthCommonDataStore< AthCommonMsg< AlgTool > >::m_detStore

StoreGateSvc_t m_detStore

Definition AthCommonDataStore.h:393

◆ evtStore()

ServiceHandle< StoreGateSvc > & AthCommonDataStore< AthCommonMsg< AlgTool > >::evtStore ( )

inlineinherited

The standard StoreGateSvc (event store) Returns (kind of) a pointer to the StoreGateSvc.

Definition at line 85 of file AthCommonDataStore.h.

85{ return m_evtStore; }

AthCommonDataStore< AthCommonMsg< AlgTool > >::m_evtStore

StoreGateSvc_t m_evtStore

Definition AthCommonDataStore.h:390

◆ extraDeps_update_handler()

void AthCommonDataStore< AthCommonMsg< AlgTool > >::extraDeps_update_handler ( Gaudi::Details::PropertyBase & ExtraDeps )

protectedinherited

Add StoreName to extra input/output deps as needed.

use the logic of the VarHandleKey to parse the DataObjID keys supplied via the ExtraInputs and ExtraOuputs Properties to add the StoreName if it's not explicitly given

◆ finalize()

StatusCode InDetAlignTrackSelTool::finalize ( )

virtual

Definition at line 70 of file InDetAlignTrackSelTool.cxx.

                                           {
  ATH_MSG_DEBUG( "InDetAlignTrackSelTool finalize method called" ) ;
  return StatusCode::SUCCESS;
}

◆ getStatus()

int InDetAlignTrackSelTool::getStatus	(	const EventContext &	ctx,
		const Trk::Track &	track ) const

virtual

Implements IInDetAlignTrackSelTool.

Definition at line 196 of file InDetAlignTrackSelTool.cxx.

                                                                                          {
  ATH_MSG_DEBUG( "in getStatus()" ) ;
  int stat=1, nholes, nshared;
  double mom, pt, chi2prob;
 
  // momentum
  mom = Momentum(track);
  if (mom < m_minMomentum) {
    stat=0;
  }
 
  // transverse momentum
  pt = Pt(track);
  if (pt < m_minPt) {
    stat=0; 
  }
 
  // number of holes
  nholes = nHoles(ctx, track);
  if (nholes > m_maxHoles) {
    stat=0; 
  }
 
  // number of shared hits
  nshared = nShared(ctx, track);
  if (nshared > m_maxShared) {
    stat=0; 
  }
 
  // chi2 Probability
  chi2prob = chi2Prob(track);
  if (chi2prob < m_minChi2Prob) {
    stat=0;
  }
 
  ATH_MSG_DEBUG( " momentum(CLHEP::GeV)=" << mom 
         << " pt (CLHEP::GeV)=" << pt 
         << " nshared=" << nshared
         << " nholes=" <<  nholes 
         << " chi2Prob=" << chi2prob
         ) ;
 
  if(!stat)
    ATH_MSG_DEBUG( "Track not accepted" ) ;
  else
    ATH_MSG_DEBUG( "Track accepted" ) ;
 
  return stat;
}

◆ initialize()

StatusCode InDetAlignTrackSelTool::initialize ( )

virtual

Definition at line 53 of file InDetAlignTrackSelTool.cxx.

                                             {
 
  // get TrackParticleCreatorTool
  ATH_CHECK(m_particleCreator.retrieve());
  
  ATH_MSG_DEBUG( "Cuts selected : min_Momentum(CLHEP::GeV)=" <<  m_minMomentum
        << " min_pt(CLHEP::GeV)=" <<  m_minPt
        << " max_shared=" << m_maxShared
        << " max_holes=" << m_maxHoles
        << " min_chi2Prob=" << m_minChi2Prob ) ;
 
  ATH_MSG_DEBUG( "InDetAlignTrackSelTool initialize() successful" ) ;
  return StatusCode::SUCCESS;
}

◆ inputHandles()

virtual std::vector< Gaudi::DataHandle * > AthCommonDataStore< AthCommonMsg< AlgTool > >::inputHandles ( ) const

overridevirtualinherited

Return this algorithm's input handles.

We override this to include handle instances from key arrays if they have not yet been declared. See comments on updateVHKA.

◆ interfaceID()

const InterfaceID & IInDetAlignTrackSelTool::interfaceID ( )

inlinestaticinherited

Definition at line 32 of file IInDetAlignTrackSelTool.h.

33{ return IID_INDETALIGN_IInDetAlignTrackSelTool; }

IID_INDETALIGN_IInDetAlignTrackSelTool

static const InterfaceID IID_INDETALIGN_IInDetAlignTrackSelTool("IInDetAlignTrackSelTool", 1, 0)

◆ Momentum()

double InDetAlignTrackSelTool::Momentum ( const Trk::Track & track ) const

private

Definition at line 77 of file InDetAlignTrackSelTool.cxx.

                                                                   {
  ATH_MSG_DEBUG( "in Momentum() " ) ;
  double mom=0.;
 
  // get measured perigee and momentum of track
  const Trk::Perigee* perigee = track.perigeeParameters();
 
  if ( !perigee->covariance()) {
    ATH_MSG_ERROR( "No measured perigee parameters assigned to the track" ) ; 
    mom = -1e12; // return big value
  }
  else{
    Amg::VectorX perigeeParams = perigee->parameters();
    mom = std::abs(1./perigeeParams[Trk::qOverP]);
    mom /= 1000.; //mom in GeV
  }
 
  return mom;
}

◆ msg()

MsgStream & AthCommonMsg< AlgTool >::msg ( ) const

inlineinherited

Definition at line 24 of file AthCommonMsg.h.

                                {
    return this->msgStream();
  }

◆ msgLvl()

bool AthCommonMsg< AlgTool >::msgLvl ( const MSG::Level lvl ) const

inlineinherited

Definition at line 30 of file AthCommonMsg.h.

                                               {
    return this->msgLevel(lvl);
  }

◆ nHoles()

int InDetAlignTrackSelTool::nHoles	(	const EventContext &	ctx,
		const Trk::Track &	track ) const

private

Definition at line 147 of file InDetAlignTrackSelTool.cxx.

                                                                                       {
  ATH_MSG_DEBUG( "in nHoles() " ) ;
  int nholes{}, nhpix{}, nhsct{};
 
  xAOD::TrackParticle* trackPart = m_particleCreator->createParticle(ctx, track);
  uint8_t iSummaryValue(0); // Dummy counter to retrieve summary values
 
  if (not trackPart){
    ATH_MSG_ERROR("Could not get xAOD::TrackParticle");
    nholes = 1000;
  }
  else{
    nhpix = trackPart->summaryValue(iSummaryValue, xAOD::numberOfPixelHoles) ? iSummaryValue : 0;
    nhsct = trackPart->summaryValue(iSummaryValue, xAOD::numberOfSCTHoles) ? iSummaryValue : 0;
    //At condition nhpix == -1, the following bits of nhsct are known to be unset: 8-31.
    //The condition nhpix == -1 cannot be true.
    //At condition nhsct == -1, the following bits of nhsct are known to be unset: 8-31.
    //The condition nhsct == -1 cannot be true.
    nholes =  nhpix + nhsct;
  }
  return nholes;
}

◆ nShared()

int InDetAlignTrackSelTool::nShared	(	const EventContext &	ctx,
		const Trk::Track &	track ) const

private

Definition at line 121 of file InDetAlignTrackSelTool.cxx.

                                                                                        {
  ATH_MSG_DEBUG( "in nShared()" ) ;
  int nshared=0, nshpix, nshsct;
 
  xAOD::TrackParticle* trackPart = m_particleCreator->createParticle(ctx, track);
  uint8_t iSummaryValue(0); // Dummy counter to retrieve summary values
 
  if (not trackPart){
    ATH_MSG_ERROR("Could not get xAOD::TrackParticle");
    nshared = 1000;
  }
  else{
    nshpix = trackPart->summaryValue(iSummaryValue, xAOD::numberOfPixelSharedHits) ? iSummaryValue : 0;
    nshsct = trackPart->summaryValue(iSummaryValue, xAOD::numberOfSCTSharedHits) ? iSummaryValue : 0;
    //At condition nhpix == -1, the following bits of nhsct are known to be unset: 8-31.
    //The condition nhpix == -1 cannot be true.
    //At condition nhsct == -1, the following bits of nhsct are known to be unset: 8-31.
    //The condition nhsct == -1 cannot be true.
 
    nshared = nshpix + nshsct;
  }
  return nshared;
}

◆ outputHandles()

virtual std::vector< Gaudi::DataHandle * > AthCommonDataStore< AthCommonMsg< AlgTool > >::outputHandles ( ) const

overridevirtualinherited

Return this algorithm's output handles.

We override this to include handle instances from key arrays if they have not yet been declared. See comments on updateVHKA.

◆ Pt()

double InDetAlignTrackSelTool::Pt ( const Trk::Track & track ) const

private

Definition at line 99 of file InDetAlignTrackSelTool.cxx.

                                                             {
  ATH_MSG_DEBUG( "in Pt() " ) ;
  double pt=0.;
 
  // get measured perigee and pt of track
  const Trk::Perigee* perigee = track.perigeeParameters();
 
  if (!perigee->covariance()) {
    ATH_MSG_ERROR( "No measured perigee parameters assigned to the track" ) ; 
    pt = -1e12; // return big value
  }
  else{  
    Amg::VectorX perigeeParams = perigee->parameters();
    pt = std::abs(sin(perigeeParams[Trk::theta])/perigeeParams[Trk::qOverP]);
    pt /= 1000.; // pt in GeV
  }
 
  return pt;
}

◆ renounce()

std::enable_if_t< std::is_void_v< std::result_of_t< decltype(&T::renounce)(T)> > &&!std::is_base_of_v< SG::VarHandleKeyArray, T > &&std::is_base_of_v< Gaudi::DataHandle, T >, void > AthCommonDataStore< AthCommonMsg< AlgTool > >::renounce ( T & h )

inlineprotectedinherited

Definition at line 380 of file AthCommonDataStore.h.

  {
    h.renounce();
    PBASE::renounce (h);
  }

◆ renounceArray()

void AthCommonDataStore< AthCommonMsg< AlgTool > >::renounceArray ( SG::VarHandleKeyArray & handlesArray )

inlineprotectedinherited

remove all handles from I/O resolution

Definition at line 364 of file AthCommonDataStore.h.

                                                          {
    handlesArray.renounce();
  }

◆ sysInitialize()

virtual StatusCode AthCommonDataStore< AthCommonMsg< AlgTool > >::sysInitialize ( )

overridevirtualinherited

Perform system initialization for an algorithm.

We override this to declare all the elements of handle key arrays at the end of initialization. See comments on updateVHKA.

Reimplemented in asg::AsgMetadataTool, AthCheckedComponent< AthAlgTool >, and AthCheckedComponent<::AthAlgTool >.

◆ sysStart()

virtual StatusCode AthCommonDataStore< AthCommonMsg< AlgTool > >::sysStart ( )

overridevirtualinherited

Handle START transition.

We override this in order to make sure that conditions handle keys can cache a pointer to the conditions container.

◆ updateVHKA()

void AthCommonDataStore< AthCommonMsg< AlgTool > >::updateVHKA ( Gaudi::Details::PropertyBase & )

inlineinherited

Definition at line 308 of file AthCommonDataStore.h.

                                               {
    // debug() << "updateVHKA for property " << p.name() << " " << p.toString() 
    //         << "  size: " << m_vhka.size() << endmsg;
    for (auto &a : m_vhka) {
      std::vector<SG::VarHandleKey*> keys = a->keys();
      for (auto k : keys) {
        k->setOwner(this);
      }
    }
  }

Member Data Documentation

◆ m_detStore

StoreGateSvc_t AthCommonDataStore< AthCommonMsg< AlgTool > >::m_detStore

privateinherited

Pointer to StoreGate (detector store by default).

Definition at line 393 of file AthCommonDataStore.h.

◆ m_evtStore

StoreGateSvc_t AthCommonDataStore< AthCommonMsg< AlgTool > >::m_evtStore

privateinherited

Pointer to StoreGate (event store by default).

Definition at line 390 of file AthCommonDataStore.h.

◆ m_maxHoles

int InDetAlignTrackSelTool::m_maxHoles

private

Maximum number of holes of the track.

Definition at line 59 of file InDetAlignTrackSelTool.h.

◆ m_maxShared

int InDetAlignTrackSelTool::m_maxShared

private

Maximum number of shared hits of the track.

Definition at line 58 of file InDetAlignTrackSelTool.h.

◆ m_minChi2Prob

double InDetAlignTrackSelTool::m_minChi2Prob

private

Minimum value of the chi2 Probality of the track.

Definition at line 60 of file InDetAlignTrackSelTool.h.

◆ m_minMomentum

double InDetAlignTrackSelTool::m_minMomentum

private

Minimum value of the momentum of the track.

Definition at line 56 of file InDetAlignTrackSelTool.h.

◆ m_minPt

double InDetAlignTrackSelTool::m_minPt

private

Minimum value of the transverse momentum of the track.

Definition at line 57 of file InDetAlignTrackSelTool.h.

◆ m_particleCreator

ToolHandle<Trk::ITrackParticleCreatorTool> InDetAlignTrackSelTool::m_particleCreator

private

Pointer to track particle creator tool.

Definition at line 54 of file InDetAlignTrackSelTool.h.

◆ m_varHandleArraysDeclared

bool AthCommonDataStore< AthCommonMsg< AlgTool > >::m_varHandleArraysDeclared

privateinherited

Definition at line 399 of file AthCommonDataStore.h.

◆ m_vhka

std::vector<SG::VarHandleKeyArray*> AthCommonDataStore< AthCommonMsg< AlgTool > >::m_vhka

privateinherited

Definition at line 398 of file AthCommonDataStore.h.

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

Public Member Functions

Static Public Member Functions

Protected Member Functions

Private Types

Private Member Functions

Private Attributes

Detailed Description

Member Typedef Documentation

◆ StoreGateSvc_t

Constructor & Destructor Documentation

◆ InDetAlignTrackSelTool()

◆ ~InDetAlignTrackSelTool()

Member Function Documentation

◆ chi2Prob()

◆ declareGaudiProperty()

◆ declareProperty()

◆ detStore()

◆ evtStore()

◆ extraDeps_update_handler()

◆ finalize()

◆ getStatus()

◆ initialize()

◆ inputHandles()

◆ interfaceID()

◆ Momentum()

◆ msg()

◆ msgLvl()

◆ nHoles()

◆ nShared()

◆ outputHandles()

◆ Pt()

◆ renounce()

◆ renounceArray()

◆ sysInitialize()

◆ sysStart()

◆ updateVHKA()

Member Data Documentation

◆ m_detStore

◆ m_evtStore

◆ m_maxHoles

◆ m_maxShared

◆ m_minChi2Prob

◆ m_minMomentum

◆ m_minPt

◆ m_particleCreator

◆ m_varHandleArraysDeclared

◆ m_vhka