InDet::ConversionFinderUtils Class Reference

Some helper tools like: hits counter. More...

#include <ConversionFinderUtils.h>

Inheritance diagram for InDet::ConversionFinderUtils:

Collaboration diagram for InDet::ConversionFinderUtils:

Public Member Functions
	ConversionFinderUtils (const std::string &type, const std::string &name, const IInterface *parent)
virtual	~ConversionFinderUtils ()
virtual StatusCode	initialize () override
virtual StatusCode	finalize () override
double	distBetweenTracks (const Trk::Track *trk_pos, const Trk::Track *trk_neg) const
	Approximate distance of minimum approach between tracks in pair.
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 ()
static double	momFraction (const Trk::TrackParameters *per1, const Trk::TrackParameters *per2)
	helper functions
static std::unique_ptr< Trk::Track >	addNewPerigeeToTrack (const Trk::Track *track, const Trk::Perigee *mp)
	Add new perigee to track.
static xAOD::Vertex *	correctVxCandidate (xAOD::Vertex *, Amg::Vector3D)
	Correct VxCandidate with respect to a user defined vertex.

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
Gaudi::Details::PropertyBase &	declareGaudiProperty (Gaudi::Property< T, V, H > &hndl, const SG::VarHandleKeyType &)
	specialization for handling Gaudi::Property<SG::VarHandleKey>

Private Attributes
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

Some helper tools like: hits counter.

Author

Tatjana Lenz , Thomas Koffas

Definition at line 27 of file ConversionFinderUtils.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

ConversionFinderUtils()

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

Definition at line 29 of file ConversionFinderUtils.cxx.

    : AthAlgTool(type, name, parent)
  {
    declareInterface<ConversionFinderUtils>(this);
  }

~ConversionFinderUtils()

InDet::ConversionFinderUtils::~ConversionFinderUtils ( )

virtualdefault

Member Function Documentation

addNewPerigeeToTrack()

std::unique_ptr< Trk::Track > InDet::ConversionFinderUtils::addNewPerigeeToTrack ( const Trk::Track * track, const Trk::Perigee * mp )

static

Add new perigee to track.

Definition at line 133 of file ConversionFinderUtils.cxx.

  {
 
    // fitQuality from track
    auto fq = track->fitQuality()->uniqueClone();
    if(!fq) return nullptr;
 
    // output datavector of TSOS
    auto     ntsos = std::make_unique<Trk::TrackStates>();
    const Trk::TrackStates* tsos = track->trackStateOnSurfaces();
    if(!tsos) {return nullptr;}
    Trk::TrackStates::const_iterator its;
    Trk::TrackStates::const_iterator itse = tsos->end();
    for(its=tsos->begin();its!=itse;++its) {
 
      std::bitset<Trk::TrackStateOnSurface::NumberOfTrackStateOnSurfaceTypes> typePattern;
      typePattern.set(Trk::TrackStateOnSurface::Perigee);
      const Trk::TrackStateOnSurface* per_tsos =
        ((*its)->type(Trk::TrackStateOnSurface::Perigee))
          ? new Trk::TrackStateOnSurface(nullptr, mp->uniqueClone(), nullptr, typePattern)
          : (*its)->clone();
      ntsos->push_back(per_tsos);
    }
 
    //Construct the new track
    Trk::TrackInfo info;
    return std::make_unique<Trk::Track>(info, std::move(ntsos), std::move(fq));
  }

correctVxCandidate()

xAOD::Vertex * InDet::ConversionFinderUtils::correctVxCandidate ( xAOD::Vertex * initVxCandidate, Amg::Vector3D guessVertex )

static

Correct VxCandidate with respect to a user defined vertex.

Definition at line 164 of file ConversionFinderUtils.cxx.

  {
    Amg::Vector3D correctVertex(initVxCandidate->position().x()+guessVertex.x(),
                 initVxCandidate->position().y()+guessVertex.y(),
                 initVxCandidate->position().z()+guessVertex.z());
 
    Amg::Vector3D globalVertexPosition(correctVertex.x(),correctVertex.y(),correctVertex.z());
 
    std::vector<Trk::VxTrackAtVertex> tmpVTAV;
 
    const std::vector<Trk::VxTrackAtVertex> &trkAtVtx = initVxCandidate->vxTrackAtVertex();
    for (const auto& vtxTrack : trkAtVtx) {
      const Trk::TrackParameters*  vtxPer = vtxTrack.perigeeAtVertex();
      const AmgVector(5)& iv = vtxPer->parameters();
      AmgSymMatrix(5) em(*(vtxPer->covariance()));
      Trk::PerigeeSurface surface (globalVertexPosition);
 
      Trk::TrackParameters* tmpMeasPer =
        surface
          .createUniqueParameters<5, Trk::Charged>(
            0., 0., iv[2], iv[3], iv[4], std::move(em))
          .release();
 
      Trk::VxTrackAtVertex trkV(vtxTrack.trackQuality().chiSquared(),
                                tmpMeasPer);
      tmpVTAV.push_back(trkV);
    }//end of loop over VxTracksAtVertex
 
    if(tmpVTAV.size()!=2) return nullptr;
 
    //Create the xAOD::Vertex and set the position and VxTrackAtVertex properly
    xAOD::Vertex *vx = new xAOD::Vertex(*initVxCandidate);
    vx->setPosition(correctVertex);
    vx->vxTrackAtVertex().clear();
    for (const auto& vtxTrack : tmpVTAV) {
      vx->vxTrackAtVertex().push_back(vtxTrack);
    }
 
    return vx;
  }//end of correct vxCandidate method

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.

{ return m_detStore; }

distBetweenTracks()

double InDet::ConversionFinderUtils::distBetweenTracks	(	const Trk::Track *	trk_pos,
		const Trk::Track *	trk_neg ) const

Approximate distance of minimum approach between tracks in pair.

distance between two tracks

Definition at line 70 of file ConversionFinderUtils.cxx.

  {
 
    //position of the first measurement on the positive track
    const Trk::MeasurementBase* first_pos_meas = trk_pos->measurementsOnTrack()->front();
    Amg::Vector3D trk_hit_pos = first_pos_meas->globalPosition();
 
    //check if really the first measurement
    for (const Trk::MeasurementBase* m : *trk_pos->measurementsOnTrack())
      if(trk_hit_pos.mag() > m->globalPosition().mag()) first_pos_meas = m;
 
    trk_hit_pos = first_pos_meas->globalPosition();
 
    //position of the first hit--->track2
    const Trk::MeasurementBase* first_neg_meas = trk_neg->measurementsOnTrack()->front();
    Amg::Vector3D trk_hit_neg = first_neg_meas->globalPosition();
 
    //check if really the first measurement
    for (const Trk::MeasurementBase* m : *trk_neg->measurementsOnTrack())
      if(trk_hit_neg.mag() > m->globalPosition().mag()) first_neg_meas = m;
 
    trk_hit_neg = first_neg_meas->globalPosition();
    double distance = 1000.;
 
    //check if measurements are on the same surface
    if (first_pos_meas->associatedSurface() == first_neg_meas->associatedSurface()) distance =
      std::sqrt(std::pow(trk_hit_pos[0] - trk_hit_neg[0],2.) + std::pow(trk_hit_pos[1] - trk_hit_neg[1],2.) +
       std::pow(trk_hit_pos[2] - trk_hit_neg[2],2.));
 
 
    //if not choose the track with the fist measurement closest to 000 and calculate the distance
    //of the closest approach of another track to this measurement
    else {
 
      //define reference point and track parameter (--> perigees) of the second track
      Amg::Vector3D ref_point;
      const Trk::Perigee* perigee;
 
      if (first_pos_meas->globalPosition().mag() < first_neg_meas->globalPosition().mag()) {
        ref_point = first_pos_meas->globalPosition();
        perigee = trk_neg->perigeeParameters();
      } else {
        ref_point = first_neg_meas->globalPosition();
        perigee = trk_pos->perigeeParameters();
      }
 
      // when the helix can be approximated as a straight line, when the
      // distance of closest approach can be calculated as distance^2 = [momentum
      // x (ref_point-position)]^2/momentum^2
      const Amg::Vector3D& momentum = perigee->momentum();
      const Amg::Vector3D& position = perigee->position();
      double p = momentum.mag();
      Amg::Vector3D delta = position - ref_point;
      distance = std::sqrt(std::pow(delta.mag(),2.) - std::pow((delta.adjoint()*momentum)[0]/p,2.));
    }
 
    ATH_MSG_DEBUG("Distance between two tracks = "<<distance);
    return distance;
  } // end of distBetweenTracks method

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.

{ 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

finalize()

StatusCode InDet::ConversionFinderUtils::finalize ( )

overridevirtual

Definition at line 48 of file ConversionFinderUtils.cxx.

                                             {
    return StatusCode::SUCCESS;
  }

initialize()

StatusCode InDet::ConversionFinderUtils::initialize ( )

overridevirtual

Definition at line 44 of file ConversionFinderUtils.cxx.

                                               {
    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 & InDet::ConversionFinderUtils::interfaceID ( )

static

Definition at line 39 of file ConversionFinderUtils.cxx.

  {
    return IID_IConversionFinderUtils;
  }

momFraction()

double InDet::ConversionFinderUtils::momFraction ( const Trk::TrackParameters * per1, const Trk::TrackParameters * per2 )

static

helper functions

mom fraction

Momentum fraction of tracks in pair.

Definition at line 56 of file ConversionFinderUtils.cxx.

  {
 
    const Amg::Vector3D& mom_pos = per1->momentum();
    const Amg::Vector3D& mom_neg = per2->momentum();
    double momFraction = mom_pos.mag()/(mom_pos.mag() + mom_neg.mag());
    return momFraction;
  }

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);
  }

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

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_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:

• ConversionFinderUtils.h
• ConversionFinderUtils.cxx