Trk::TruthTrackRecordToTrack Class Reference

#include <TruthTrackRecordToTrack.h>

Inheritance diagram for Trk::TruthTrackRecordToTrack:

Collaboration diagram for Trk::TruthTrackRecordToTrack:

Public Member Functions
	TruthTrackRecordToTrack (const std::string &type, const std::string &name, const IInterface *parent)
virtual StatusCode	initialize ()
virtual const Trk::TrackParameters *	makeProdVertexParameters (HepMC::ConstGenParticlePtr part) const
	This function produces a Trk::TrackParameters object corresponding to the HepMC::GenParticle at the production vertex. More...
virtual const Trk::TrackParameters *	makeProdVertexParameters (const xAOD::TruthParticle *part) const
virtual const Trk::TrackParameters *	makePerigeeParameters (HepMC::ConstGenParticlePtr part) const
	This function extrapolates track to the perigee, and returns perigee parameters. More...
virtual const Trk::TrackParameters *	makePerigeeParameters (const xAOD::TruthParticle *part) const
virtual const Trk::TrackParameters *	makeProdVertexParameters (HepMC::ConstGenParticlePtr part) const=0
	This function produces a Trk::TrackParameters object corresponding to the HepMC::GenParticle at the TrackRecord's layer. More...
virtual const Trk::TrackParameters *	makeProdVertexParameters (const xAOD::TruthParticle *part) const=0
	This function produces a Trk::TrackParameters object corresponding to the HepMC::GenParticle at the TrackRecord's layer. More...
virtual const Trk::TrackParameters *	makePerigeeParameters (HepMC::ConstGenParticlePtr part) const=0
	This function produces Trk::TrackParameters corresponding to MC truth and in addition extrapolates them to the perigee. More...
virtual const Trk::TrackParameters *	makePerigeeParameters (const xAOD::TruthParticle *part) const=0
	This function produces Trk::TrackParameters corresponding to MC truth and in addition extrapolates them to the perigee. More...
ServiceHandle< StoreGateSvc > &	evtStore ()
	The standard StoreGateSvc (event store) Returns (kind of) a pointer to the StoreGateSvc. More...
const ServiceHandle< StoreGateSvc > &	evtStore () const
	The standard StoreGateSvc (event store) Returns (kind of) a pointer to the StoreGateSvc. More...
const ServiceHandle< StoreGateSvc > &	detStore () const
	The standard StoreGateSvc/DetectorStore Returns (kind of) a pointer to the StoreGateSvc. More...
virtual StatusCode	sysInitialize () override
	Perform system initialization for an algorithm. More...
virtual StatusCode	sysStart () override
	Handle START transition. More...
virtual std::vector< Gaudi::DataHandle * >	inputHandles () const override
	Return this algorithm's input handles. More...
virtual std::vector< Gaudi::DataHandle * >	outputHandles () const override
	Return this algorithm's output handles. More...
Gaudi::Details::PropertyBase &	declareProperty (Gaudi::Property< T > &t)
Gaudi::Details::PropertyBase *	declareProperty (const std::string &name, SG::VarHandleKey &hndl, const std::string &doc, const SG::VarHandleKeyType &)
	Declare a new Gaudi property. More...
Gaudi::Details::PropertyBase *	declareProperty (const std::string &name, SG::VarHandleBase &hndl, const std::string &doc, const SG::VarHandleType &)
	Declare a new Gaudi property. More...
Gaudi::Details::PropertyBase *	declareProperty (const std::string &name, SG::VarHandleKeyArray &hndArr, const std::string &doc, const SG::VarHandleKeyArrayType &)
Gaudi::Details::PropertyBase *	declareProperty (const std::string &name, T &property, const std::string &doc, const SG::NotHandleType &)
	Declare a new Gaudi property. More...
Gaudi::Details::PropertyBase *	declareProperty (const std::string &name, T &property, const std::string &doc="none")
	Declare a new Gaudi property. More...
void	updateVHKA (Gaudi::Details::PropertyBase &)
MsgStream &	msg () const
MsgStream &	msg (const MSG::Level lvl) 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 More...
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. More...

Private Types
typedef ServiceHandle< StoreGateSvc >	StoreGateSvc_t

Private Member Functions
	TruthTrackRecordToTrack (const TruthTrackRecordToTrack &)=delete
	Forbid copying of Truth...ToTrack to not mess with the internal pointers. More...
TruthTrackRecordToTrack &	operator= (const TruthTrackRecordToTrack &)=delete
Gaudi::Details::PropertyBase &	declareGaudiProperty (Gaudi::Property< T > &hndl, const SG::VarHandleKeyType &)
	specialization for handling Gaudi::Property<SG::VarHandleKey> More...
Gaudi::Details::PropertyBase &	declareGaudiProperty (Gaudi::Property< T > &hndl, const SG::VarHandleKeyArrayType &)
	specialization for handling Gaudi::Property<SG::VarHandleKeyArray> More...
Gaudi::Details::PropertyBase &	declareGaudiProperty (Gaudi::Property< T > &hndl, const SG::VarHandleType &)
	specialization for handling Gaudi::Property<SG::VarHandleBase> More...
Gaudi::Details::PropertyBase &	declareGaudiProperty (Gaudi::Property< T > &t, const SG::NotHandleType &)
	specialization for handling everything that's not a Gaudi::Property<SG::VarHandleKey> or a <SG::VarHandleKeyArray> More...

Private Attributes
const HepPDT::ParticleDataTable *	m_particleDataTable
ToolHandle< Trk::IExtrapolator >	m_extrapolator
SG::ReadHandleKey< TrackRecordCollection >	m_reccollkey
StoreGateSvc_t	m_evtStore
	Pointer to StoreGate (event store by default) More...
StoreGateSvc_t	m_detStore
	Pointer to StoreGate (detector store by default) More...
std::vector< SG::VarHandleKeyArray * >	m_vhka
bool	m_varHandleArraysDeclared

Detailed Description

TruthTrackRecordToTrack is an AlgTool to create Trk::TrackParameters from a HepMC::GenParticle expressed at a "TrackRecordCollection" anywhere in ATLAS. The purpose is to analyse non-collision particles (therefore uses TrackRecord, not GenParticle's prod vertex) in the reconstructed Track's reference frame. The code stems from old cosmics-testbeam analysis refurbished under the ITruthToTrack interface.

Author

Wolfgang.Liebig -at- cern.ch

Definition at line 38 of file TruthTrackRecordToTrack.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

TruthTrackRecordToTrack() [1/2]

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

Definition at line 24 of file TruthTrackRecordToTrack.cxx.

  : AthAlgTool(type,name,parent),
    m_particleDataTable(nullptr),
    m_extrapolator("Trk::Extrapolator/AtlasExtrapolator")
{
  declareInterface<ITruthToTrack>(this);
 
  declareProperty("Extrapolator", m_extrapolator);
  declareProperty("TrackRecordKey",m_reccollkey="CosmicPerigee");
}

TruthTrackRecordToTrack() [2/2]

Trk::TruthTrackRecordToTrack::TruthTrackRecordToTrack ( const TruthTrackRecordToTrack &  )

privatedelete

Forbid copying of Truth...ToTrack to not mess with the internal pointers.

Member Function Documentation

declareGaudiProperty() [1/4]

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

inlineprivateinherited

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

Definition at line 170 of file AthCommonDataStore.h.

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

declareGaudiProperty() [2/4]

Gaudi::Details::PropertyBase& AthCommonDataStore< AthCommonMsg< AlgTool > >::declareGaudiProperty ( Gaudi::Property< T > &  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());
 
  }

declareGaudiProperty() [3/4]

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

inlineprivateinherited

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

Definition at line 184 of file AthCommonDataStore.h.

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

declareGaudiProperty() [4/4]

Gaudi::Details::PropertyBase& AthCommonDataStore< AthCommonMsg< AlgTool > >::declareGaudiProperty ( Gaudi::Property< T > &  t, const SG::NotHandleType &    )

inlineprivateinherited

specialization for handling everything that's not a Gaudi::Property<SG::VarHandleKey> or a <SG::VarHandleKeyArray>

Definition at line 199 of file AthCommonDataStore.h.

  {
    return PBASE::declareProperty(t);
  }

declareProperty() [1/6]

Gaudi::Details::PropertyBase* AthCommonDataStore< AthCommonMsg< AlgTool > >::declareProperty ( const std::string &  name, SG::VarHandleBase &  hndl, const std::string &  doc, const SG::VarHandleType &    )

inlineinherited

Declare a new Gaudi property.

Parameters

name	Name of the property.
hndl	Object holding the property value.
doc	Documentation string for the property.

This is the version for types that derive from SG::VarHandleBase. The property value object is put on the input and output lists as appropriate; then we forward to the base class.

Definition at line 245 of file AthCommonDataStore.h.

  {
    this->declare(hndl.vhKey());
    hndl.vhKey().setOwner(this);
 
    return PBASE::declareProperty(name,hndl,doc);
  }

declareProperty() [2/6]

Gaudi::Details::PropertyBase* AthCommonDataStore< AthCommonMsg< AlgTool > >::declareProperty ( const std::string &  name, SG::VarHandleKey &  hndl, const std::string &  doc, const SG::VarHandleKeyType &    )

inlineinherited

Declare a new Gaudi property.

Parameters

name	Name of the property.
hndl	Object holding the property value.
doc	Documentation string for the property.

This is the version for types that derive from SG::VarHandleKey. The property value object is put on the input and output lists as appropriate; then we forward to the base class.

Definition at line 221 of file AthCommonDataStore.h.

  {
    this->declare(hndl);
    hndl.setOwner(this);
 
    return PBASE::declareProperty(name,hndl,doc);
  }

declareProperty() [3/6]

Gaudi::Details::PropertyBase* AthCommonDataStore< AthCommonMsg< AlgTool > >::declareProperty ( const std::string &  name, SG::VarHandleKeyArray &  hndArr, const std::string &  doc, const SG::VarHandleKeyArrayType &    )

inlineinherited

Definition at line 259 of file AthCommonDataStore.h.

  {
 
    // std::ostringstream ost;
    // ost << Algorithm::name() << " VHKA declareProp: " << name 
    //     << " size: " << hndArr.keys().size() 
    //     << " mode: " << hndArr.mode() 
    //     << "  vhka size: " << m_vhka.size()
    //     << "\n";
    // debug() << ost.str() << endmsg;
 
    hndArr.setOwner(this);
    m_vhka.push_back(&hndArr);
 
    Gaudi::Details::PropertyBase* p =  PBASE::declareProperty(name, hndArr, doc);
    if (p != 0) {
      p->declareUpdateHandler(&AthCommonDataStore<PBASE>::updateVHKA, this);
    } else {
      ATH_MSG_ERROR("unable to call declareProperty on VarHandleKeyArray " 
                    << name);
    }
 
    return p;
 
  }

declareProperty() [4/6]

Gaudi::Details::PropertyBase* AthCommonDataStore< AthCommonMsg< AlgTool > >::declareProperty ( const std::string &  name, T &  property, const std::string &  doc, const SG::NotHandleType &    )

inlineinherited

Declare a new Gaudi property.

Parameters

name	Name of the property.
property	Object holding the property value.
doc	Documentation string for the property.

This is the generic version, for types that do not derive from SG::VarHandleKey. It just forwards to the base class version of declareProperty.

Definition at line 333 of file AthCommonDataStore.h.

  {
    return PBASE::declareProperty(name, property, doc);
  }

declareProperty() [5/6]

Gaudi::Details::PropertyBase* AthCommonDataStore< AthCommonMsg< AlgTool > >::declareProperty ( const std::string &  name, T &  property, const std::string &  doc = "none"  )

inlineinherited

Declare a new Gaudi property.

Parameters

name	Name of the property.
property	Object holding the property value.
doc	Documentation string for the property.

This dispatches to either the generic declareProperty or the one for VarHandle/Key/KeyArray.

Definition at line 352 of file AthCommonDataStore.h.

  {
    typedef typename SG::HandleClassifier<T>::type htype;
    return declareProperty (name, property, doc, htype());
  }

declareProperty() [6/6]

Gaudi::Details::PropertyBase& AthCommonDataStore< AthCommonMsg< AlgTool > >::declareProperty ( Gaudi::Property< T > &  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.

{ return m_detStore; }

evtStore() [1/2]

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.

{ return m_evtStore; }

evtStore() [2/2]

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

inlineinherited

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

Definition at line 90 of file AthCommonDataStore.h.

{ return m_evtStore; }

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

initialize()

StatusCode Trk::TruthTrackRecordToTrack::initialize ( )

virtual

Definition at line 37 of file TruthTrackRecordToTrack.cxx.

                                                  {
 
  // get the Particle Properties Service
  IPartPropSvc* partPropSvc = nullptr;
  StatusCode sc =  service("PartPropSvc", partPropSvc, true);
  if (sc.isFailure()) {
    ATH_MSG_ERROR ("Could not initialize Particle Properties Service");
    return StatusCode::FAILURE;
  }
  m_particleDataTable = partPropSvc->PDT();
 
  if ( m_extrapolator.retrieve().isFailure() ) {
    ATH_MSG_FATAL ("Failed to retrieve tool " << m_extrapolator );
    return StatusCode::FAILURE;
  }
 
  ATH_CHECK( m_reccollkey.initialize() );
 
  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()

static const InterfaceID& Trk::ITruthToTrack::interfaceID ( )

inlinestaticinherited

Definition at line 40 of file ITruthToTrack.h.

                                            { 
      static const InterfaceID IID_ITruthToTrack("Trk::ITruthToTrack",1,0);
      return IID_ITruthToTrack;
    }

makePerigeeParameters() [1/4]

const Trk::TrackParameters * Trk::TruthTrackRecordToTrack::makePerigeeParameters ( const xAOD::TruthParticle *  part ) const

virtual

Implements Trk::ITruthToTrack.

Definition at line 223 of file TruthTrackRecordToTrack.cxx.

                                                                                                               {
  const Trk::TrackParameters* generatedTrackPerigee = nullptr;
 
  if(part && part->hasProdVtx() && m_particleDataTable && m_extrapolator) {
 
    MsgStream log(msgSvc(), name());
 
    std::unique_ptr<const Trk::TrackParameters> productionVertexTrackParams( makeProdVertexParameters(part) );
    if(productionVertexTrackParams) {
 
      // Extrapolate the TrackParameters object to the perigee. Direct extrapolation,
      // no material effects.
      generatedTrackPerigee =
        m_extrapolator->extrapolateDirectly(Gaudi::Hive::currentContext(),
                                            *productionVertexTrackParams,
                                            Trk::PerigeeSurface(),
                                            Trk::anyDirection,
                                            false,
                                            Trk::nonInteracting).release();
    }
  }
 
  return generatedTrackPerigee;
}

makePerigeeParameters() [2/4]

virtual const Trk::TrackParameters* Trk::ITruthToTrack::makePerigeeParameters

This function produces Trk::TrackParameters corresponding to MC truth and in addition extrapolates them to the perigee.

The return object will be of flavour Trk::Perigee. Once more it employs factory design: clients need to take care of deleting the returned parameters object.

makePerigeeParameters() [3/4]

const Trk::TrackParameters * Trk::TruthTrackRecordToTrack::makePerigeeParameters ( HepMC::ConstGenParticlePtr  part ) const

virtual

This function extrapolates track to the perigee, and returns perigee parameters.

The return value points to an object allocated with the operator new. The caller is responsible for deletion of the object.

Implements Trk::ITruthToTrack.

Definition at line 197 of file TruthTrackRecordToTrack.cxx.

                                                                                                               {
  const Trk::TrackParameters* generatedTrackPerigee = nullptr;
 
  if(part && part->production_vertex() && m_particleDataTable && m_extrapolator) {
 
    MsgStream log(msgSvc(), name());
 
    std::unique_ptr<const Trk::TrackParameters> productionVertexTrackParams( makeProdVertexParameters(part) );
    if(productionVertexTrackParams) {
 
      // Extrapolate the TrackParameters object to the perigee. Direct extrapolation,
      // no material effects.
      generatedTrackPerigee =
        m_extrapolator->extrapolateDirectly(Gaudi::Hive::currentContext(),
                                            *productionVertexTrackParams,
                                            Trk::PerigeeSurface(),
                                            Trk::anyDirection,
                                            false,
                                            Trk::nonInteracting).release();
    }
  }
 
  return generatedTrackPerigee;
}

makePerigeeParameters() [4/4]

virtual const Trk::TrackParameters* Trk::ITruthToTrack::makePerigeeParameters

This function produces Trk::TrackParameters corresponding to MC truth and in addition extrapolates them to the perigee.

The return object will be of flavour Trk::Perigee. Once more it employs factory design: clients need to take care of deleting the returned parameters object.

makeProdVertexParameters() [1/4]

const Trk::TrackParameters * Trk::TruthTrackRecordToTrack::makeProdVertexParameters ( const xAOD::TruthParticle *  part ) const

virtual

Implements Trk::ITruthToTrack.

Definition at line 129 of file TruthTrackRecordToTrack.cxx.

                                                                                                                  {
 
  if (part == nullptr || m_particleDataTable==nullptr) return nullptr;
 
  Trk::TrackParameters *result = nullptr;
  Amg::Vector3D prodVertexVector;
  Amg::Vector3D globalPos;
  Amg::Vector3D globalMom;
  int id=0;
  double charge = 0.0;
  const HepPDT::ParticleData* pd = nullptr;
 
   SG::ReadHandle<TrackRecordCollection> trackRecordCollection(m_reccollkey);
 
  if (trackRecordCollection.isValid()) {
    ATH_MSG_ERROR ("Could not get track record!");
    return nullptr;
  }
 
  ATH_MSG_DEBUG("reading from track record, size=" << trackRecordCollection->size());
 
  if (trackRecordCollection->empty()) ATH_MSG_WARNING ("action required but TrackRecordCollection size is 0");
 
  for (const auto & trackRecord : *trackRecordCollection){
 
    if ( HepMC::barcode(trackRecord) == HepMC::barcode(part) ) { // FIXME barcode-based - currently TrackRecords read in from input files will have invalid ID values and xAOD::TruthParticle only supports barcodes, so stick with barcodes
 
      id = trackRecord.GetPDGCode();
      pd = m_particleDataTable->particle(std::abs(id));
      if (!pd) {
        ATH_MSG_WARNING ("found particle with problematic PDG ID" << part << " , " << id);
        continue;
      }
 
      CLHEP::Hep3Vector  tv = trackRecord.GetPosition();
      prodVertexVector = Amg::Vector3D(tv.x(),tv.y(),tv.z());
      globalPos = prodVertexVector;
 
      Amg::Vector3D hv2(trackRecord.GetMomentum().x(), trackRecord.GetMomentum().y(), trackRecord.GetMomentum().z());
      globalMom = hv2;
 
      ATH_MSG_DEBUG("found particle " << part << ", momentum " << hv2 << " production " << globalPos);
 
 
    }
  }   // loop over G4 records
 
  if (pd) {
    charge = (id>0) ? pd->charge() : -pd->charge();
 
    Amg::Translation3D prodSurfaceCentre( prodVertexVector.x(),
                      prodVertexVector.y(),
                      prodVertexVector.z() );
 
    Amg::Transform3D tmpTransf =  prodSurfaceCentre *  Amg::RotationMatrix3D::Identity();
 
    Trk::PlaneSurface planeSurface(tmpTransf, 5., 5. );
    result = new Trk::AtaPlane(globalPos, globalMom, charge, planeSurface);
 
  } else {
    ATH_MSG_WARNING ("Could not get particle data for particle ID="<<id);
  }
  return result;
}

makeProdVertexParameters() [2/4]

virtual const Trk::TrackParameters* Trk::ITruthToTrack::makeProdVertexParameters

This function produces a Trk::TrackParameters object corresponding to the HepMC::GenParticle at the TrackRecord's layer.

The method is a TrackParameter factory (client obtains ownership!)

makeProdVertexParameters() [3/4]

const Trk::TrackParameters * Trk::TruthTrackRecordToTrack::makeProdVertexParameters ( HepMC::ConstGenParticlePtr  part ) const

virtual

This function produces a Trk::TrackParameters object corresponding to the HepMC::GenParticle at the production vertex.

The object is allocated using operator new and returned by pointer. The caller is responsible for deletion of the object. (Wrapping it into a smart pointer may be the most convenient way to make sure the memory is freed.)

Implements Trk::ITruthToTrack.

Definition at line 59 of file TruthTrackRecordToTrack.cxx.

                                                                                                                  {
 
  if (part == nullptr || m_particleDataTable==nullptr) return nullptr;
 
  Trk::TrackParameters *result = nullptr;
  Amg::Vector3D prodVertexVector;
  prodVertexVector.setZero();
  Amg::Vector3D globalPos;
  Amg::Vector3D globalMom;
  int id=0;
  double charge = 0.0;
  const HepPDT::ParticleData* pd = nullptr;
 
 
  SG::ReadHandle<TrackRecordCollection> trackRecordCollection(m_reccollkey);
 
  if (trackRecordCollection.isValid()) {
    ATH_MSG_ERROR ("Could not get track record!");
    return nullptr;
  }
  ATH_MSG_DEBUG("reading from track record, size=" << trackRecordCollection->size());
 
  if (trackRecordCollection->empty()) ATH_MSG_WARNING ("action required but TrackRecordCollection size is 0");
 
  const int barcodepart = HepMC::barcode(part);
  for (const auto & trackRecord : *trackRecordCollection){
 
    if ( HepMC::barcode(trackRecord) != barcodepart ) continue; // FIXME barcode-based - currently TrackRecords read in from input files will have invalid ID values, so stick with barcodes
 
      id = trackRecord.GetPDGCode();
      pd = m_particleDataTable->particle(std::abs(id));
      if (!pd) {
        ATH_MSG_WARNING ("Found particle with problematic PDG ID " << part << " , " << id);
        continue;
      }
 
      CLHEP::Hep3Vector tv = trackRecord.GetPosition();
      prodVertexVector = Amg::Vector3D(tv.x(),tv.y(),tv.z());
      globalPos = prodVertexVector;
 
      Amg::Vector3D hv2(trackRecord.GetMomentum().x(), trackRecord.GetMomentum().y(),
                            trackRecord.GetMomentum().z());
      globalMom = hv2;
 
      ATH_MSG_DEBUG("Found particle " << part << ", momentum " << hv2 << " production " << globalPos);
 
 
  }   // loop over G4 records
 
  if (pd) {
    charge = (id>0) ? pd->charge() : -pd->charge();
 
    Amg::Translation3D prodSurfaceCentre( prodVertexVector.x(),
                      prodVertexVector.y(),
                      prodVertexVector.z() );
 
    Amg::Transform3D tmpTransf =  prodSurfaceCentre *  Amg::RotationMatrix3D::Identity();
 
    Trk::PlaneSurface planeSurface(tmpTransf, 5., 5. );
    result = new Trk::AtaPlane(globalPos, globalMom, charge, planeSurface);
 
  } else {
    ATH_MSG_WARNING ("Could not get particle data for particle ID="<<id);
  }
  return result;
}

makeProdVertexParameters() [4/4]

virtual const Trk::TrackParameters* Trk::ITruthToTrack::makeProdVertexParameters

This function produces a Trk::TrackParameters object corresponding to the HepMC::GenParticle at the TrackRecord's layer.

The method is a TrackParameter factory (client obtains ownership!)

msg() [1/2]

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

inlineinherited

Definition at line 24 of file AthCommonMsg.h.

                                {
    return this->msgStream();
  }

msg() [2/2]

MsgStream& AthCommonMsg< AlgTool >::msg ( const MSG::Level  lvl ) const

inlineinherited

Definition at line 27 of file AthCommonMsg.h.

                                                  {
    return this->msgStream(lvl);
  }

msgLvl()

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

inlineinherited

Definition at line 30 of file AthCommonMsg.h.

                                               {
    return this->msgLevel(lvl);
  }

operator=()

TruthTrackRecordToTrack& Trk::TruthTrackRecordToTrack::operator= ( const TruthTrackRecordToTrack &  )

privatedelete

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.

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 DerivationFramework::CfAthAlgTool, AthCheckedComponent< AthAlgTool >, AthCheckedComponent<::AthAlgTool >, and asg::AsgMetadataTool.

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_extrapolator

ToolHandle<Trk::IExtrapolator> Trk::TruthTrackRecordToTrack::m_extrapolator

private

Definition at line 67 of file TruthTrackRecordToTrack.h.

m_particleDataTable

const HepPDT::ParticleDataTable* Trk::TruthTrackRecordToTrack::m_particleDataTable

private

Definition at line 66 of file TruthTrackRecordToTrack.h.

m_reccollkey

SG::ReadHandleKey<TrackRecordCollection> Trk::TruthTrackRecordToTrack::m_reccollkey

private

Definition at line 68 of file TruthTrackRecordToTrack.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.

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

• TruthTrackRecordToTrack.h
• TruthTrackRecordToTrack.cxx