#include <FullLinearizedTrackFactory.h>

Inheritance diagram for Trk::FullLinearizedTrackFactory:

Collaboration diagram for Trk::FullLinearizedTrackFactory:

Public Member Functions
virtual StatusCode	initialize () override
	Standard AlgToolMethods. More...

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

	~FullLinearizedTrackFactory ()
	Destructor. More...

virtual void	linearize (VxTrackAtVertex &theTrack, const Amg::Vector3D &linPoint) const override
	Interface for VxTrackAtVertex: Takes a MeasuredPerigee from VxTrackAtVertex and a Lineariztion point. More...

virtual LinearizedTrack *	linearizedTrack (const TrackParameters *param, const Amg::Vector3D &linPoint) const override
	Linearization method: Takes a MeasuredPerigee and a LinearizationPoint. More...

virtual LinearizedTrack *	linearizedTrack (const NeutralParameters *param, const Amg::Vector3D &linPoint) const override
	Linearization method: Takes a MeasuredPerigee and a LinearizationPoint. 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 ()
	AlgTool interface methods. More...

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
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
ToolHandle< Trk::IExtrapolator >	m_extrapolator

SG::ReadCondHandleKey< AtlasFieldCacheCondObj >	m_fieldCacheCondObjInputKey {this, "AtlasFieldCacheCondObj", "fieldCondObj", "Name of the Magnetic Field conditions object key"}

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

A concrete implementation of the linearized track factory. This factory linearizes the measurement equation in the vicinity of a given point (see ILinearizedTrackFactory class, [1] Billoir and Qian et al. NIM A311 (1992) 139-150 and [2] R. Fruehwirth et al. Comp. Phys. Comm 96(1996) 189-208 for more info). In the current implementation the ATLAS perigee parametrization of helix (d_0,z_0,phi_p,theta_p,q/p ) and full equations of motion ae used without any approximations or expansion. For the method of the calculation see: (to be published, so far contact the authors)

The result of a calculation is stored in the Trk::LinearizedTrack object, which is a private member of Trk::VxTrackAtVertex.

Author: Kirill Prokofiev (University of Sheffield); 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 (2016-06-01)

EDM Migration to xAOD - replace Trk::Vertex with Amg::Vector3D

Definition at line 55 of file FullLinearizedTrackFactory.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

◆ FullLinearizedTrackFactory()

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

Default constructor due to Athena interface.

Definition at line 27 of file FullLinearizedTrackFactory.cxx.

   {
     declareProperty("Extrapolator",     m_extrapolator);
     declareInterface<IVertexLinearizedTrackFactory>(this);
   }
  
   FullLinearizedTrackFactory::~FullLinearizedTrackFactory() = default;

◆ ~FullLinearizedTrackFactory()

Trk::FullLinearizedTrackFactory::~FullLinearizedTrackFactory ( )

default

Destructor.

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.

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

◆ initialize()

StatusCode Trk::FullLinearizedTrackFactory::initialize ( )

overridevirtual

Standard AlgToolMethods.

Definition at line 36 of file FullLinearizedTrackFactory.cxx.

44 {

◆ 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::IVertexLinearizedTrackFactory::interfaceID ( )

inlinestaticinherited

AlgTool interface methods.

Definition at line 78 of file IVertexLinearizedTrackFactory.h.

78 { return IID_IVertexLinearizedTrackFactory; };

◆ linearize()

void Trk::FullLinearizedTrackFactory::linearize	(	VxTrackAtVertex &	theTrack,
		const Amg::Vector3D &	linPoint
	)		const

overridevirtual

Interface for VxTrackAtVertex: Takes a MeasuredPerigee from VxTrackAtVertex and a Lineariztion point.

Produces a new PerigeeLinearizedState and stores its pointer as a private
member of VxTrackAtVertex

Implements Trk::IVertexLinearizedTrackFactory.

Definition at line 45 of file FullLinearizedTrackFactory.cxx.

◆ linearizedTrack() [1/2]

LinearizedTrack * Trk::FullLinearizedTrackFactory::linearizedTrack	(	const NeutralParameters *	param,
		const Amg::Vector3D &	linPoint
	)		const

overridevirtual

Linearization method: Takes a MeasuredPerigee and a LinearizationPoint.

Creates a new PerigeeLinearizedTrackState and returns its pointer.

Implements Trk::IVertexLinearizedTrackFactory.

Definition at line 233 of file FullLinearizedTrackFactory.cxx.

   {
     if (!neutralPars) return nullptr;
     Amg::Vector3D lp =linPoint;
     PerigeeSurface perigeeSurface(lp);
  
     //no material effects for neutral particles
     /*
     const Amg::Vector3D gMomentum  = neutralPars->momentum();
     const Amg::Vector3D gDirection = neutralPars->position() - lp;
     const double extrapolationDirection = gMomentum.dot( gDirection);
     MaterialUpdateMode mode = (extrapolationDirection < 0) ?
                                Trk::addNoise                : // parameters upstream of vertex
                                Trk::removeNoise             ; // parameters downstream of vertex -> go back
     */
     const NeutralParameters* parsAtVertex =
       m_extrapolator->extrapolate(*neutralPars,
                                   perigeeSurface, Trk::anyDirection, true).release();
  
     if (dynamic_cast<const Trk::NeutralPerigee*>(parsAtVertex)==nullptr ||
         parsAtVertex->covariance()==nullptr ) {
       ATH_MSG_INFO ("Could not extrapolate Perigee to vertex pos: x " << lp.x() << " y " <<
                     lp.y() << " z " << lp.z() << ". Should not happen. ");
  
       if (dynamic_cast<const Trk::NeutralPerigee*>(neutralPars) && neutralPars->covariance()) {
         if (parsAtVertex) delete parsAtVertex; // in case extrapolation made other parameters
         parsAtVertex = neutralPars->clone();
       } else {
         delete parsAtVertex; return nullptr;
       }
     }
  
     // positions, phi, theta
     AmgVector(5) param = parsAtVertex->parameters();
     Amg::Vector3D expPoint = parsAtVertex->position();
  
     double phi_v = param(Trk::phi);
     double sin_phi_v = sin(phi_v);
     double cos_phi_v = cos(phi_v);
     double th = param(Trk::theta);
     double tan_th = tan(th);
     double q_ov_p = param(Trk::qOverP);
  
     //momentum
     Amg::Vector3D expMomentum(phi_v, th, q_ov_p);
     double X = expPoint(0) - lp.x();
     double Y = expPoint(1) - lp.y();
  
     AmgVector(5) parAtExpansionPoint; parAtExpansionPoint.setZero();
     parAtExpansionPoint[0] = Y*cos_phi_v-X*sin_phi_v;
  
    //very easy for a neutral track!
    //phi doesn't change...
  
     double phiAtEp=phi_v;
     parAtExpansionPoint[2] = phiAtEp;
     parAtExpansionPoint[1] = expPoint[2] - lp.z() - 1./tan_th*(X*cos_phi_v+Y*sin_phi_v);
     parAtExpansionPoint[3] = th;
     parAtExpansionPoint[4] = q_ov_p;
  
     //jacobian elements
     AmgMatrix(5,3) positionJacobian; positionJacobian.setZero();
  
     //first row
     positionJacobian(0,0) = -sin_phi_v;
     positionJacobian(0,1) = +cos_phi_v;
  
     //second raw
     positionJacobian(1,0) = -cos_phi_v/tan_th;
     positionJacobian(1,1) = -sin_phi_v/tan_th;
     positionJacobian(1,2) = 1.;
  
 //    std::cout<<"My position Jacobian: "<<positionJacobian<<std::endl;
  
     //momentum jacobian and related stuff
     AmgMatrix(5,3) momentumJacobian; momentumJacobian.setZero();
     momentumJacobian(2,0) = 1.;
     momentumJacobian(3,1) = 1.;
     momentumJacobian(4,2) = 1.;
 //    std::cout<<"My momentum Jacobian "<<momentumJacobian<<std::endl;
  
     AmgVector(5) constantTerm = parAtExpansionPoint - positionJacobian*expPoint - momentumJacobian*expMomentum;
 //    std::cout<<"My constant term: "<<constantTerm<<std::endl;
  
     LinearizedTrack* toreturn=new LinearizedTrack(parsAtVertex->parameters(),
                                                   *parsAtVertex->covariance(),
                           lp,
                           positionJacobian,
                           momentumJacobian,
                           expPoint,
                           expMomentum,
                           constantTerm);
  
     //delete MeasuredPerigee object created by the Extrapolator
     delete parsAtVertex;
     //return new linearized track
     return toreturn;
   }
  
  

◆ linearizedTrack() [2/2]

LinearizedTrack * Trk::FullLinearizedTrackFactory::linearizedTrack	(	const TrackParameters *	param,
		const Amg::Vector3D &	linPoint
	)		const

overridevirtual

Linearization method: Takes a MeasuredPerigee and a LinearizationPoint.

Creates a new PerigeeLinearizedTrackState and returns its pointer.

Implements Trk::IVertexLinearizedTrackFactory.

Definition at line 53 of file FullLinearizedTrackFactory.cxx.

                                                          : // parameters upstream of vertex
                               Trk::removeNoise             ; // parameters downstream of vertex -> go back
  
     const TrackParameters* parsAtVertex =
       m_extrapolator->extrapolate(
         Gaudi::Hive::currentContext(),
         *trackPars,
         perigeeSurface, Trk::anyDirection, true, Trk::pion, mode).release();
  
     if (dynamic_cast<const Trk::Perigee*>(parsAtVertex)==nullptr ||
         parsAtVertex->covariance()==nullptr ) {
       ATH_MSG_INFO ("Could not extrapolate Perigee to vertex pos: x " << lp.x() << " y " <<
                     lp.y() << " z " << lp.z() << ". Normal if outside ID acceptance ");
  
       if (dynamic_cast<const Trk::Perigee*>(trackPars) && trackPars->covariance()) {
         if (parsAtVertex) delete parsAtVertex; // in case extrapolation made other parameters
         parsAtVertex = trackPars->clone();
       } else {
         delete parsAtVertex; return nullptr;
       }
     }
  
     if (parsAtVertex && parsAtVertex->covariance() && parsAtVertex->covariance()->determinant()<=0)
     {
       ATH_MSG_DEBUG ("The track covariance matrix det after extrapolation is: " << parsAtVertex->covariance()->determinant() <<
                        " --> Using non extrapolated track parameters");
       delete parsAtVertex;
       parsAtVertex=trackPars->clone();
     }
  
     // positions
     AmgVector(5) param = parsAtVertex->parameters();
     Amg::Vector3D expPoint = parsAtVertex->position();
  
     //phi_v and functions
     double phi_v = param(Trk::phi);
     double sin_phi_v = sin(phi_v);
     double cos_phi_v = cos(phi_v);
  
     //theta and functions
     double th = param(Trk::theta);
     double sin_th = sin(th);
     double tan_th = tan(th);
  
     //q over p
     double q_ov_p = param(Trk::qOverP);
     int sgn_h = (q_ov_p<0.)? -1:1;
     Amg::Vector3D expMomentum(phi_v, th, q_ov_p);
  
     // magnetic field
  
     SG::ReadCondHandle<AtlasFieldCacheCondObj> readHandle{m_fieldCacheCondObjInputKey, Gaudi::Hive::currentContext()};
     const AtlasFieldCacheCondObj* fieldCondObj{*readHandle};
  
     MagField::AtlasFieldCache fieldCache;
     fieldCondObj->getInitializedCache (fieldCache);
  
     double mField[3];
     fieldCache.getField(expPoint.data(),mField);
  
     double B_z=mField[2]*299.792;//Magnetic field is returned in kT.
                  //The scaling is a factor of c needed for computing rho.
  
     // signed radius and rotation variables
     // (if momentum or mag field is absent, the curvature radius is infinite)
  
     double rho;
     if(mField[2] == 0. || fabs(q_ov_p) <= 1e-15) rho = 1e+15 ;
     else rho =  sin_th / (q_ov_p * B_z);
  
     //  std:: cout<<"calculated rho "<< rho<<std::endl;
     double X = expPoint(0) - lp.x() + rho*sin_phi_v;
     double Y = expPoint(1) - lp.y() - rho*cos_phi_v;
     double SS = (X * X + Y * Y);
     double S = sqrt(SS);
  
     //calculated parameters at expansion point
     //q_over_p and theta stay constant along trajectory
     AmgVector(5) parAtExpansionPoint; parAtExpansionPoint.setZero();
     parAtExpansionPoint[0] = rho - sgn_h * S;
  
 //calculation of phi at expansion point
     double phiAtEp;
     int sgnY = (Y<0)? -1:1;
     int sgnX = (X<0)? -1:1;
     double pi = TMath::Pi();//acos(-1.);
  
     if(fabs(X)>fabs(Y)) phiAtEp = sgn_h*sgnX* acos(-sgn_h * Y / S);
     else
     {
      phiAtEp = asin(sgn_h * X / S);
      if( (sgn_h * sgnY)> 0) phiAtEp =  sgn_h * sgnX * pi - phiAtEp;
     }
  
     parAtExpansionPoint[2] = phiAtEp;
     parAtExpansionPoint[1] = expPoint(2) - lp.z() + rho*(phi_v - parAtExpansionPoint[2])/tan_th;
     parAtExpansionPoint[3] = th;
     parAtExpansionPoint[4] = q_ov_p;
 //   std::cout<<"Calculated parameters at expansion point: "<<parAtExpansionPoint<<std::endl;
 //   std::cout<<"Difference: "<<predStateParameters-parAtExpansionPoint<<std::endl;
  
     //jacobian elements
     AmgMatrix(5,3) positionJacobian; positionJacobian.setZero();
  
     //first row
     positionJacobian(0,0) = -sgn_h * X / S;
     positionJacobian(0,1) = -sgn_h * Y / S;
  
     //second row
     positionJacobian(1,0) =  rho * Y / (tan_th * SS);
     positionJacobian(1,1) = -rho * X / (tan_th * SS);
     positionJacobian(1,2) = 1.;
  
     //third row
     positionJacobian(2,0) = -Y / SS;
     positionJacobian(2,1) =  X / SS;
 //    std::cout<<"My position Jacobian: "<<positionJacobian<<std::endl;
  
     //momentum jacobian and related stuff
     AmgMatrix(5,3) momentumJacobian; momentumJacobian.setZero();
     double R = X*cos_phi_v + Y * sin_phi_v;
     double Q = X*sin_phi_v - Y * cos_phi_v;
     double d_phi = parAtExpansionPoint[2] - phi_v;
  
     //first row
     momentumJacobian(0,0) = -sgn_h * rho * R / S ;
  
     double qOvS_red = 1 - sgn_h * Q / S;
     momentumJacobian(0,1) = qOvS_red  * rho / tan_th;
     momentumJacobian(0,2) = - qOvS_red * rho / q_ov_p;
  
     //second row
     momentumJacobian(1,0) = (1 - rho*Q/SS )*rho/tan_th;
     momentumJacobian(1,1) = (d_phi + rho * R / (SS * tan_th * tan_th) ) * rho;
     momentumJacobian(1,2) = (d_phi - rho * R /SS ) * rho / (q_ov_p*tan_th);
  
     //third row
     momentumJacobian(2,0) =  rho * Q / SS;
     momentumJacobian(2,1) = -rho * R / (SS*tan_th);
     momentumJacobian(2,2) =  rho * R / (q_ov_p*SS);
  
     //last two rows:
     momentumJacobian(3,1) = 1.;
     momentumJacobian(4,2) = 1.;
 //    std::cout<<"My momentum Jacobian "<<momentumJacobian<<std::endl;
  
     AmgVector(5) constantTerm = parAtExpansionPoint - positionJacobian*expPoint - momentumJacobian*expMomentum;
 //    std::cout<<"My constant term: "<<constantTerm<<std::endl;
  
     LinearizedTrack* toreturn=new LinearizedTrack(parsAtVertex->parameters(),
                                                   *parsAtVertex->covariance(),
                           lp,
                           positionJacobian,
                           momentumJacobian,
                           expPoint,
                           expMomentum,
                           constantTerm);
  
     //delete Perigee object created by the Extrapolator
     delete parsAtVertex;
     //return new linearized track
     return toreturn;
   }
  
   LinearizedTrack * FullLinearizedTrackFactory::linearizedTrack(const NeutralParameters *  neutralPars,

◆ 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_extrapolator

ToolHandle< Trk::IExtrapolator > Trk::FullLinearizedTrackFactory::m_extrapolator

private

Definition at line 103 of file FullLinearizedTrackFactory.h.

◆ m_fieldCacheCondObjInputKey

SG::ReadCondHandleKey<AtlasFieldCacheCondObj> Trk::FullLinearizedTrackFactory::m_fieldCacheCondObjInputKey {this, "AtlasFieldCacheCondObj", "fieldCondObj", "Name of the Magnetic Field conditions object key"}

private

Definition at line 104 of file FullLinearizedTrackFactory.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

◆ FullLinearizedTrackFactory()

◆ ~FullLinearizedTrackFactory()

Member Function Documentation

◆ 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()

◆ initialize()

◆ inputHandles()

◆ interfaceID()

◆ linearize()

◆ linearizedTrack() [1/2]

◆ linearizedTrack() [2/2]

◆ msg() [1/2]

◆ msg() [2/2]

◆ msgLvl()

◆ outputHandles()

◆ renounce()

◆ renounceArray()

◆ sysInitialize()

◆ sysStart()

◆ updateVHKA()

Member Data Documentation

◆ m_detStore

◆ m_evtStore

◆ m_extrapolator

◆ m_fieldCacheCondObjInputKey

◆ m_varHandleArraysDeclared

◆ m_vhka