#include <NeutralParticleParameterCalculator.h>

Inheritance diagram for Trk::NeutralParticleParameterCalculator:

Collaboration diagram for Trk::NeutralParticleParameterCalculator:

Public Member Functions
virtual StatusCode	initialize () override

	NeutralParticleParameterCalculator (const std::string &t, const std::string &n, const IInterface *p)
	Default constructor due to Athena interface. More...

	~NeutralParticleParameterCalculator ()
	Destructor. More...

virtual NeutralPerigee *	createNeutralTrackFromVertex (const xAOD::Vertex &) const override
	method that makes the parameters of a V0 or photon before decay to two tracks 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
std::pair< AmgMatrix(3, 3), AmgMatrix(3, 3)>	getPosMomentumAndMomentumCovMatrix (const Trk::LinearizedTrack *linTrack, const AmgMatrix(3, 3) &vrt_cov, const AmgMatrix(3, 3) &vrt_weight) const

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...

Static Private Member Functions
static	AmgMatrix (3, 3) getPhiThetaQOverPToPxPyPzJacobian(double qOverP

Private Attributes
static double	theta

static double double	phi

ToolHandle< Trk::IVertexLinearizedTrackFactory >	m_LinearizedTrackFactory

bool	m_linearizedTrackFactoryIsAvailable

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

Tool taking a two-track vertex and creating a neutral track from it. If the vertex is an extended vertex, it uses the full vertex-to-track covariance matrix (constrained vertex fit), if not, then it assumes all the correlations come simply from the fact that a common vertex is fit (unconstrained vertex fit), and reconstructs back the vertex-to-track correlations from the vertex and track cov. matrices. The former is used in egamma, while in JetFitter the latter is used.

Author: N. Giacinto Piacquadio (for the Freiburg Group)

Changes:

David Shope david.nosp@m..ric.nosp@m.hard..nosp@m.shop.nosp@m.e@cer.nosp@m.n.ch (2016-04-26)

EDM Migration to xAOD - remove method using VxCandidate

Definition at line 43 of file NeutralParticleParameterCalculator.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

◆ NeutralParticleParameterCalculator()

Trk::NeutralParticleParameterCalculator::NeutralParticleParameterCalculator	(	const std::string &	t,
		const std::string &	n,
		const IInterface *	p
	)

Default constructor due to Athena interface.

Definition at line 26 of file NeutralParticleParameterCalculator.cxx.

   {   
     declareProperty("LinearizedTrackFactory",m_LinearizedTrackFactory);
     declareInterface<INeutralParticleParameterCalculator>(this);
   }
   
   NeutralParticleParameterCalculator::~NeutralParticleParameterCalculator() = default;

◆ ~NeutralParticleParameterCalculator()

Trk::NeutralParticleParameterCalculator::~NeutralParticleParameterCalculator ( )

default

Destructor.

Member Function Documentation

◆ AmgMatrix()

static Trk::NeutralParticleParameterCalculator::AmgMatrix	(	3	,
		3
	)

staticprivate

◆ createNeutralTrackFromVertex()

NeutralPerigee * Trk::NeutralParticleParameterCalculator::createNeutralTrackFromVertex ( const xAOD::Vertex & myVertex ) const

overridevirtual

method that makes the parameters of a V0 or photon before decay to two tracks

Implements Trk::INeutralParticleParameterCalculator.

Definition at line 46 of file NeutralParticleParameterCalculator.cxx.

     {
       msg(MSG::WARNING) <<  " More or less than 2 tracks in Vertex.  No Neutral Perigee could be created" << endmsg;
       return nullptr;
     }
  
     if ( !myVertex.trackParticleLinks()[0].isValid() || !myVertex.trackParticleLinks()[1].isValid() )
     {
       msg(MSG::WARNING) <<  " Track Particle Element link is not valid" << endmsg;
       return nullptr;
   
     }
     const xAOD::TrackParticle * myFirstTrack= myVertex.trackParticle( 0 );
     const xAOD::TrackParticle * mySecondTrack=myVertex.trackParticle( 1 );
  
     const Trk::Perigee& myFirstPerigee  = myFirstTrack->perigeeParameters();
     const Trk::Perigee& mySecondPerigee = mySecondTrack->perigeeParameters();
  
     const AmgMatrix(3,3)& vrt_cov = myVertex.covariancePosition();
     AmgMatrix(3,3) vrt_weight =  myVertex.covariancePosition().inverse().eval();
  
     //need to recalculate the refitted covariance matrix of the tracks (yes, we don't have it yet)
     std::pair<AmgMatrix(3,3),AmgMatrix(3,3)> PosMomAndMomCovFirstTrack;
     std::pair<AmgMatrix(3,3),AmgMatrix(3,3)> PosMomAndMomCovSecondTrack;
  
  
     //check if the linearizedTrackFactory is available...
     if (!m_linearizedTrackFactoryIsAvailable) {
       msg(MSG::ERROR) << " No LinearizedTrackFactory is defined and no ExtendedVxCandidate is provided. Cannot obtain covariance matrix of neutral particle. Failed... " << endmsg;
       return nullptr;
     }
  
  
     if(m_LinearizedTrackFactory){
     
       const Trk::LinearizedTrack * myFirstLinearizedTrack = m_LinearizedTrackFactory->linearizedTrack(&myFirstPerigee, myVertex.position() );
       const Trk::LinearizedTrack * mySecondLinearizedTrack= m_LinearizedTrackFactory->linearizedTrack(&mySecondPerigee, myVertex.position() );
  
       if (myFirstLinearizedTrack==nullptr||mySecondLinearizedTrack==nullptr)
       {
         msg(MSG::WARNING) <<  " Could not find one of the linearized tracks.  No Neutral Perigee could be created" << endmsg;
         if (myFirstLinearizedTrack) delete myFirstLinearizedTrack;
         if (mySecondLinearizedTrack) delete mySecondLinearizedTrack;
         return nullptr;
       }
  
       PosMomAndMomCovFirstTrack=getPosMomentumAndMomentumCovMatrix(myFirstLinearizedTrack,
                                                                    vrt_cov,
                                                                    vrt_weight);
  
       PosMomAndMomCovSecondTrack=getPosMomentumAndMomentumCovMatrix(mySecondLinearizedTrack,
                                                                     vrt_cov,
                                                                     vrt_weight);
                                                                     
       delete myFirstLinearizedTrack;
       delete mySecondLinearizedTrack;                                                                    
     } else {
       msg(MSG::WARNING) <<  " getPosMomentumAndMomentumCovMatrix method failed " << endmsg;
       return nullptr;
     }
     
     const AmgVector(5) & myFirstPerigeeParameters=myFirstPerigee.parameters();
     const AmgVector(5) & mySecondPerigeeParameters=mySecondPerigee.parameters();
  
     AmgMatrix(3,3) FirstJacobianToPxPyPz=getPhiThetaQOverPToPxPyPzJacobian(myFirstPerigeeParameters[Trk::qOverP],
                                                                            myFirstPerigeeParameters[Trk::theta],
                                                                            myFirstPerigeeParameters[Trk::phi0]);
  
     AmgMatrix(3,3) SecondJacobianToPxPyPz=getPhiThetaQOverPToPxPyPzJacobian(mySecondPerigeeParameters[Trk::qOverP],
                                                                             mySecondPerigeeParameters[Trk::theta],
                                                                             mySecondPerigeeParameters[Trk::phi0]);
     
     
     
     AmgMatrix(3,3) posMomentumCovFirst=PosMomAndMomCovFirstTrack.first*FirstJacobianToPxPyPz.transpose();
     AmgMatrix(3,3) posMomentumCovSecond=PosMomAndMomCovSecondTrack.first*SecondJacobianToPxPyPz.transpose();
  
     AmgMatrix(3,3) momentumCovFirst=PosMomAndMomCovFirstTrack.second.similarity(FirstJacobianToPxPyPz);
     AmgMatrix(3,3) momentumCovSecond=PosMomAndMomCovSecondTrack.second.similarity(SecondJacobianToPxPyPz);
  
     
     //P1 P2 covariance matrix
     AmgMatrix(3,3) covP1P2; covP1P2.setZero();
  
     
     covP1P2=posMomentumCovFirst.transpose()*vrt_weight*posMomentumCovSecond;
   
     // no distinction between symmetric and non-symmetric square matrices in new EDM, drop checks.
     // AmgMatrix(3,3) nonSymCovNewP = momentumCovFirst+momentumCovSecond+covP1P2+covP1P2.transpose();
     AmgMatrix(3,3) covNewP = momentumCovFirst+momentumCovSecond+covP1P2+covP1P2.transpose();
  
     AmgMatrix(3,3) covNewXP=posMomentumCovFirst+posMomentumCovSecond;
  
     //now  covNewP and covNewXP are the new covariance matrices with the new momentum
     //calculate also new momentum
     Amg::Vector3D newMomentum=myFirstPerigee.momentum()+mySecondPerigee.momentum();
  
     ATH_MSG_VERBOSE(" new momentum " << newMomentum << " new cov Momentum " << covNewP);
     ATH_MSG_VERBOSE(" position " << myVertex.position() << " cov Pos - Momentum " << covNewXP);
     ATH_MSG_VERBOSE(" old cov position " << vrt_cov);
  
     //Now you need to create the new neutral tracks
     //NOT trivial, since no global representation exists...
     //now you need first to go back with the momentum (px,py,pz -> phi,theta,q/p)
  
     Trk::JacobianPxyzToPhiThetaQoverPspherical JacobianToPhiThetaQOverP(newMomentum.phi(),
                                                                         newMomentum.theta(),
                                                                         1./newMomentum.mag());
  
     AmgMatrix(3,3) finalCovNewP=covNewP.similarity(JacobianToPhiThetaQOverP);
     AmgMatrix(3,3) finalCovNewXP=covNewXP*JacobianToPhiThetaQOverP.transpose();
  
     double phi=newMomentum.phi();
     double theta=newMomentum.theta();
     double qOverP=1./newMomentum.mag();
  
     ATH_MSG_VERBOSE(" new phi: " << phi << " +/- " << sqrt(finalCovNewP(0,0)));
     ATH_MSG_VERBOSE(" new theta: " << theta << " +/- " << sqrt(finalCovNewP(1,1)));
     ATH_MSG_VERBOSE(" new P: " << 1./qOverP << " +/- " << 1./qOverP/qOverP*sqrt(finalCovNewP(2,2)));
  
     //now you still have 6 parameters! need to reduce them to 5!
     //
     //create the jacobian for a neutral particle
  
     double sin_phi_v=sin(phi);
     double cos_phi_v=cos(phi);
     double tan_th=tan(theta);
  
     //jacobian elements
     AmgMatrix(5,6) globalNeutralJacobian; globalNeutralJacobian.setZero();
     globalNeutralJacobian(0,0) = -sin_phi_v;
     globalNeutralJacobian(0,1) = +cos_phi_v;
     globalNeutralJacobian(1,0) = -cos_phi_v/tan_th;
     globalNeutralJacobian(1,1) = -sin_phi_v/tan_th;
     globalNeutralJacobian(1,2) = 1.;
     globalNeutralJacobian(2,3) = 1.;
     globalNeutralJacobian(3,4) = 1.;
     globalNeutralJacobian(4,5) = 1.;
  
     AmgMatrix(6,6) fullTrkCov; fullTrkCov.setZero();
     fullTrkCov.block<3,3>(0,3) = finalCovNewXP;             // was .sub(1,4, finalCovNewXP);
     fullTrkCov.block<3,3>(3,0) = finalCovNewXP.transpose(); // was .sub(4,1, finalCovNewXP.T());
     fullTrkCov.block<3,3>(0,0) = vrt_cov;                   // was .sub(1,1, vrt_cov);
     fullTrkCov.block<3,3>(3,3) = finalCovNewP;              // was .sub(4,4, finalCovNewP);
  
     // no mechanism in new EDM: CLHEP::HepSymMatrix symFullTrkCov;
     // no mechanism in new EDM: symFullTrkCov.assign(fullTrkCov);
  
     Trk::PerigeeSurface perSurface(myVertex.position());
     AmgSymMatrix(5) covNeutral = AmgSymMatrix(5)(globalNeutralJacobian*fullTrkCov*globalNeutralJacobian.transpose());
  
     return new Trk::NeutralPerigee(0,0,phi,theta,qOverP,perSurface,std::move(covNeutral));
   }
   
   

◆ 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.

95 { 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.

85 { 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.

90 { 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

◆ getPosMomentumAndMomentumCovMatrix()

std::pair< AmgMatrix(3, 3), AmgMatrix(3, 3)> Trk::NeutralParticleParameterCalculator::getPosMomentumAndMomentumCovMatrix	(	const Trk::LinearizedTrack *	linTrack,
		const AmgMatrix(3, 3) &	vrt_cov,
		const AmgMatrix(3, 3) &	vrt_weight
	)		const

private

Definition at line 207 of file NeutralParticleParameterCalculator.cxx.

   {
  
     const AmgMatrix(5,3) & A = linTrack->positionJacobian();
     const AmgMatrix(5,3) & B = linTrack->momentumJacobian();
     const AmgSymMatrix(5) & trkParametersWeight = linTrack->expectedWeightAtPCA();
  
     AmgSymMatrix(3) Sm = B.transpose()*(trkParametersWeight*B);
     // same maths, but doesn't compile: AmgSymMatrix(3) Sm = trkParametersWeight.similarityT(B);
     if (Sm.determinant() == 0.0) {
       ATH_MSG_WARNING("S matrix can not be inverted, new type of check as part of Eigen, please monitor."
                       << endmsg << "Matrix Sm = " << Sm);
       ATH_MSG_WARNING("This track is returned not refitted");
       // throw std::string("Inversion of S matrix fails in track parameters refit");
     }
     Sm = Sm.inverse().eval();
     AmgMatrix(3,3) posMomentumCovariance = -vrt_cov * A.transpose() * trkParametersWeight * B *Sm;
     AmgMatrix(3,3) momentumCovariance = Sm + vrt_weight.similarityT(posMomentumCovariance);
  
     return std::pair<AmgMatrix(3,3),AmgMatrix(3,3)>(posMomentumCovariance,momentumCovariance);
   }
  
  

◆ initialize()

StatusCode Trk::NeutralParticleParameterCalculator::initialize ( )

overridevirtual

Definition at line 37 of file NeutralParticleParameterCalculator.cxx.

                                                             { m_LinearizedTrackFactory.empty() } ));
     m_linearizedTrackFactoryIsAvailable = !m_LinearizedTrackFactory.empty();
  
     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::INeutralParticleParameterCalculator::interfaceID ( )

inlinestaticinherited

Definition at line 42 of file INeutralParticleParameterCalculator.h.

42 { return IID_NeutralParticleParameterCalculator; };

◆ 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);
   }

◆ 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_LinearizedTrackFactory

ToolHandle<Trk::IVertexLinearizedTrackFactory> Trk::NeutralParticleParameterCalculator::m_LinearizedTrackFactory

private

Definition at line 71 of file NeutralParticleParameterCalculator.h.

◆ m_linearizedTrackFactoryIsAvailable

bool Trk::NeutralParticleParameterCalculator::m_linearizedTrackFactoryIsAvailable

private

Definition at line 72 of file NeutralParticleParameterCalculator.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.

◆ phi

double double Trk::NeutralParticleParameterCalculator::phi

private

Definition at line 69 of file NeutralParticleParameterCalculator.h.

◆ theta

double Trk::NeutralParticleParameterCalculator::theta

private

Definition at line 69 of file NeutralParticleParameterCalculator.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

Static Private Member Functions

Private Attributes

Detailed Description

Member Typedef Documentation

◆ StoreGateSvc_t

Constructor & Destructor Documentation

◆ NeutralParticleParameterCalculator()

◆ ~NeutralParticleParameterCalculator()

Member Function Documentation

◆ AmgMatrix()

◆ createNeutralTrackFromVertex()

◆ declareGaudiProperty() [1/4]

◆ declareGaudiProperty() [2/4]

◆ declareGaudiProperty() [3/4]

◆ declareGaudiProperty() [4/4]

◆ declareProperty() [1/6]

◆ declareProperty() [2/6]

◆ declareProperty() [3/6]

◆ declareProperty() [4/6]

◆ declareProperty() [5/6]

◆ declareProperty() [6/6]

◆ detStore()

◆ evtStore() [1/2]

◆ evtStore() [2/2]

◆ extraDeps_update_handler()

◆ getPosMomentumAndMomentumCovMatrix()

◆ initialize()

◆ inputHandles()

◆ interfaceID()

◆ msg() [1/2]

◆ msg() [2/2]

◆ msgLvl()

◆ outputHandles()

◆ renounce()

◆ renounceArray()

◆ sysInitialize()

◆ sysStart()

◆ updateVHKA()

Member Data Documentation

◆ m_detStore

◆ m_evtStore

◆ m_LinearizedTrackFactory

◆ m_linearizedTrackFactoryIsAvailable

◆ m_varHandleArraysDeclared

◆ m_vhka

◆ phi

◆ theta