Februar 2007 (c) Atlas Detector Reconstruction Software. More...

#include <JetFitterHelper.h>

Inheritance diagram for Trk::JetFitterHelper:

Collaboration diagram for Trk::JetFitterHelper:

Public Member Functions
	JetFitterHelper (const std::string &t, const std::string &n, const IInterface *p)
	Constructor.
	~JetFitterHelper ()
	Destructor.
void	addTracksOfFirstVertexToSecondVertex (const VxVertexOnJetAxis &first, VxVertexOnJetAxis &second) const
	Adds tracks from the second VxVertexOnJetAxis to the first one.
void	performKalmanConstraintToBePrimaryVertex (RecVertexPositions &positionToUpdate, const VxVertexOnJetAxis &vertexToConstraint) const
	Performs a Kalman Update constraining the VxVertexOnJetAxis specified to be merged with the primary vertex.
void	performKalmanConstraintToMergeVertices (RecVertexPositions &positionToUpdate, const VxVertexOnJetAxis &vertexToConstraint1, const VxVertexOnJetAxis &vertexToConstraint2) const
	Performs a Kalman Update constraining the two VxVertexOnJetAxis specified to be merged.
VxVertexOnJetAxis &	mergeVerticesInJetCandidate (VxVertexOnJetAxis &vertex1, VxVertexOnJetAxis &vertex2, VxJetCandidate &myJetCandidate) const
	Modifies the VxJetCandidate provided, merging the two provided VxVertexOnJetAxis into a single vertex along the jet axis.
void	mergeVertexToPrimaryInJetCandidate (VxVertexOnJetAxis &vertex, VxJetCandidate &myJetCandidate) const
	Modifies the VxJetCandidate provided, merging the provided VxVertexOnJetAxis into the primary vertex.
ServiceHandle< StoreGateSvc > &	evtStore ()
	The standard `StoreGateSvc` (event store) Returns (kind of) a pointer to the `StoreGateSvc`.
const ServiceHandle< StoreGateSvc > &	detStore () const
	The standard `StoreGateSvc/DetectorStore` Returns (kind of) a pointer to the `StoreGateSvc`.
virtual StatusCode	sysInitialize () override
	Perform system initialization for an algorithm.
virtual StatusCode	sysStart () override
	Handle START transition.
virtual std::vector< Gaudi::DataHandle * >	inputHandles () const override
	Return this algorithm's input handles.
virtual std::vector< Gaudi::DataHandle * >	outputHandles () const override
	Return this algorithm's output handles.
Gaudi::Details::PropertyBase &	declareProperty (Gaudi::Property< T, V, H > &t)
void	updateVHKA (Gaudi::Details::PropertyBase &)
MsgStream &	msg () const
bool	msgLvl (const MSG::Level lvl) const

Static Public Member Functions
static const InterfaceID &	interfaceID ()

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

Private Types
typedef ServiceHandle< StoreGateSvc >	StoreGateSvc_t

Private Member Functions
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

Februar 2007 (c) Atlas Detector Reconstruction Software.

Author: Giacinto Piacquadio (University of Freiburg)

(In case of problems, please contact: nicol.nosp@m.a.gi.nosp@m.acint.nosp@m.o.pi.nosp@m.acqua.nosp@m.dio@.nosp@m.cern..nosp@m.ch)

This class provides utilities for the JetFitter algorithm, mainly to manipulate the JetVxCandidate object during the fit, but also to perform linearization and similar tasks...

One very interesting feature is the application of exact constraints through the Kalman Filter formalism, a possibility illustrated for the first time in Babar with TreeFitter by Wouter Hulsbergen. This helps to have a fast estimation of the probability of forming a common cluster between two vertices. (reference will be put here)

Definition at line 43 of file JetFitterHelper.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

◆ JetFitterHelper()

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

Constructor.

Definition at line 37 of file JetFitterHelper.cxx.

                                                                                               :
    AthAlgTool(t,n,p)
  { 
    declareInterface< JetFitterHelper >(this) ;
  }

◆ ~JetFitterHelper()

Trk::JetFitterHelper::~JetFitterHelper ( )

default

Destructor.

Member Function Documentation

◆ addTracksOfFirstVertexToSecondVertex()

void Trk::JetFitterHelper::addTracksOfFirstVertexToSecondVertex	(	const VxVertexOnJetAxis &	first,
		VxVertexOnJetAxis &	second ) const

Adds tracks from the second VxVertexOnJetAxis to the first one.

Definition at line 47 of file JetFitterHelper.cxx.

                                                                                                                             {
    
    
    //disclaimer: no real copy of tracks, only copy of pointers...
 
    //to add the tracks to the second vertex you *need* to retrieve a copy
    //this is safer and I would like to keep it...
 
    std::vector<VxTrackAtVertex*> tracksOfSecondVertex(second.getTracksAtVertex());
 
    const std::vector<VxTrackAtVertex*>& tracksOfFirstVertex(first.getTracksAtVertex());
 
    const std::vector<VxTrackAtVertex*>::const_iterator tracksBegin=tracksOfFirstVertex.begin();
    const std::vector<VxTrackAtVertex*>::const_iterator tracksEnd=tracksOfFirstVertex.end();
 
    for (std::vector<VxTrackAtVertex*>::const_iterator tracksIter=tracksBegin;
     tracksIter!=tracksEnd;
     ++tracksIter) {
      
      if (*tracksIter!=nullptr) {
    
    tracksOfSecondVertex.push_back(*tracksIter);
 
      } else {
    ATH_MSG_WARNING( " addTracksOfFirstVertexToSecondVertex method found an empty pointer for a track of the first vertex. Skipping it..." );
    //  continue;
      }
      
    }
 
    second.setTracksAtVertex(std::move(tracksOfSecondVertex));
    
  }

◆ declareGaudiProperty()

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

inlineprivateinherited

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

Definition at line 156 of file AthCommonDataStore.h.

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

◆ declareProperty()

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

inlineinherited

Definition at line 145 of file AthCommonDataStore.h.

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

◆ detStore()

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

inlineinherited

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

Definition at line 95 of file AthCommonDataStore.h.

95{ return m_detStore; }

AthCommonDataStore< AthCommonMsg< AlgTool > >::m_detStore

StoreGateSvc_t m_detStore

Definition AthCommonDataStore.h:393

◆ evtStore()

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

inlineinherited

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

Definition at line 85 of file AthCommonDataStore.h.

85{ return m_evtStore; }

AthCommonDataStore< AthCommonMsg< AlgTool > >::m_evtStore

StoreGateSvc_t m_evtStore

Definition AthCommonDataStore.h:390

◆ extraDeps_update_handler()

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

protectedinherited

Add StoreName to extra input/output deps as needed.

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

◆ 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 & Trk::JetFitterHelper::interfaceID ( )

inlinestatic

Definition at line 48 of file JetFitterHelper.h.

                                            {
      return IID_JetFitterHelper;
    }

◆ mergeVertexToPrimaryInJetCandidate()

void Trk::JetFitterHelper::mergeVertexToPrimaryInJetCandidate	(	VxVertexOnJetAxis &	vertex,
		VxJetCandidate &	myJetCandidate ) const

Modifies the VxJetCandidate provided, merging the provided VxVertexOnJetAxis into the primary vertex.

Use this method in order to perform the merging in a coherent way (RecVertexPositions, list of VxVertexOnJetAxis, tracks in the VxVertexOnJetAxis representing the primary vertex, numbering of clusters, everything is updated in a coherent way). Afterwards the modified VxJetCandidate is ready for a new full fit.

Definition at line 268 of file JetFitterHelper.cxx.

                                                                                                                           {
    
    VxVertexOnJetAxis* primaryVertexPtr(myJetCandidate.getPrimaryVertex());
 
    if (primaryVertexPtr==nullptr) {
      ATH_MSG_WARNING ("Pointer to the primary vertex is 0. No merging with primary vertex possible.");
      return;
    }
 
    VxVertexOnJetAxis primaryVertex(*primaryVertexPtr);
    
    addTracksOfFirstVertexToSecondVertex(vertex,primaryVertex);
 
    //now you need to *delete* the second vertex in copyOfRecVertexPositions and 
    //in copyOfLinearizationPositions
    const Amg::VectorX & recPosition=myJetCandidate.getRecVertexPositions().position();
    Amg::VectorX  linPosition=myJetCandidate.getLinearizationVertexPositions().position();
    const Amg::VectorX & constraintPosition=myJetCandidate.getConstraintVertexPositions().position();
    const Amg::MatrixX & covPosition=myJetCandidate.getRecVertexPositions().covariancePosition();
    const Amg::MatrixX & covConstraintPosition=myJetCandidate.getConstraintVertexPositions().covariancePosition();
    
    int numbVertex2=numRow(vertex.getNumVertex());
 
    //call the function which deletes a single row (they're in the anonymous namespace, in Utilities.h)
    Amg::VectorX  reducedRecPositions=deleteRowFromVector(recPosition,numbVertex2);
    Amg::VectorX  reducedLinPositions=deleteRowFromVector(linPosition,numbVertex2);
    Amg::VectorX  reducedConstraintPositions=deleteRowFromVector(constraintPosition,numbVertex2);
    Amg::MatrixX reducedCovPositions=deleteRowFromSymMatrix(covPosition,numbVertex2);
    Amg::MatrixX reducedConstraintCovPositions=deleteRowFromSymMatrix(covConstraintPosition,numbVertex2);
    
    myJetCandidate.setRecVertexPositions(RecVertexPositions(reducedRecPositions,
                                reducedCovPositions,
                                0.,0.));
    myJetCandidate.setConstraintVertexPositions(RecVertexPositions(reducedConstraintPositions,
                                   reducedConstraintCovPositions,
                                   0.,0.));
    
    myJetCandidate.setLinearizationVertexPositions(VertexPositions(reducedLinPositions));
    
    //now as a last step you need to delete the vertex you're not using anymore...
    
    std::vector<VxVertexOnJetAxis*> copyOfVerticesAtJetCandidate=myJetCandidate.getVerticesOnJetAxis();
    
    const std::vector<VxVertexOnJetAxis*>::iterator VerticesBegin=copyOfVerticesAtJetCandidate.begin();
    std::vector<VxVertexOnJetAxis*>::iterator VerticesEnd=copyOfVerticesAtJetCandidate.end();
    
    bool found=false;
    
    for (std::vector<VxVertexOnJetAxis*>::iterator VerticesIter=VerticesBegin;VerticesIter!=VerticesEnd;) {
      if ((*VerticesIter)==&vertex) {
    delete *VerticesIter;
    VerticesIter=copyOfVerticesAtJetCandidate.erase(VerticesIter);
    VerticesEnd=copyOfVerticesAtJetCandidate.end();
    found=true;
      } else {
    ++VerticesIter;
      }
    }
    
    if (!found) {
      ATH_MSG_WARNING ("Could not find second vertex from which a cluster with the primary vertex was created to delete it... Very strange... Check!!! ");
    }
    
     //update myJetCandidate with the new vector of tracks
    myJetCandidate.setVerticesOnJetAxis(copyOfVerticesAtJetCandidate);
    myJetCandidate.setPrimaryVertex(&primaryVertex);
 
    //now you should update the numbering scheme... CHECK CHECK... WHEN TO DO IT???????
  }

◆ mergeVerticesInJetCandidate()

VxVertexOnJetAxis & Trk::JetFitterHelper::mergeVerticesInJetCandidate	(	VxVertexOnJetAxis &	vertex1,
		VxVertexOnJetAxis &	vertex2,
		VxJetCandidate &	myJetCandidate ) const

Modifies the VxJetCandidate provided, merging the two provided VxVertexOnJetAxis into a single vertex along the jet axis.

Use this method in order to perform the merging in a coherent way (RecVertexPositions, list of VxVertexOnJetAxis, tracks in the merged VxVertexOnJetAxis, numbering of clusters, everything is updated in a coherent way). Afterwards the modified VxJetCandidate is ready for a new full fit.

Definition at line 183 of file JetFitterHelper.cxx.

                                                                          {
 
    if (&vertex1==myJetCandidate.getPrimaryVertex()) {
      mergeVertexToPrimaryInJetCandidate(vertex2,myJetCandidate);
      return *myJetCandidate.getPrimaryVertex();
    }
    if (&vertex2 == myJetCandidate.getPrimaryVertex()) {
      mergeVertexToPrimaryInJetCandidate(vertex1, myJetCandidate);
      return *myJetCandidate.getPrimaryVertex();
    }
 
    addTracksOfFirstVertexToSecondVertex(vertex2,vertex1);
 
    //now you need to *delete* the second vertex in copyOfRecVertexPositions and 
    //in copyOfLinearizationPositions
    const Amg::VectorX & recPosition=myJetCandidate.getRecVertexPositions().position();
    Amg::VectorX linPosition=myJetCandidate.getLinearizationVertexPositions().position();
    const Amg::VectorX & constraintPosition=myJetCandidate.getConstraintVertexPositions().position();
    const Amg::MatrixX & covPosition=myJetCandidate.getRecVertexPositions().covariancePosition();
    const Amg::MatrixX & covConstraintPosition=myJetCandidate.getConstraintVertexPositions().covariancePosition();
    
 
    int numbVertex2=numRow(vertex2.getNumVertex());
 
    //set the linearized position of the merged vertex to the weighted mean of the previous positions
    int numbVertex1=numRow(vertex1.getNumVertex());
    if (covPosition(numbVertex1,numbVertex1)!=0&&covPosition(numbVertex2,numbVertex2)!=0) {
      linPosition(numbVertex1)=(recPosition(numbVertex1)/covPosition(numbVertex1,numbVertex1)+
                recPosition(numbVertex2)/covPosition(numbVertex2,numbVertex2))/
    (1./covPosition(numbVertex1,numbVertex1)+1./covPosition(numbVertex2,numbVertex2));
    } else {
      ATH_MSG_WARNING ("one of the vertices to merge has error on position 0. should not happen, however: --> proceeding...");
    }   
    
    //call the function which deletes a single row (they're in the anonymous namespace, in Utilities.h)
    Amg::VectorX reducedRecPositions=deleteRowFromVector(recPosition,numbVertex2);
    Amg::VectorX reducedLinPositions=deleteRowFromVector(linPosition,numbVertex2);
    Amg::VectorX reducedConstraintPositions=deleteRowFromVector(constraintPosition,numbVertex2);
    Amg::MatrixX reducedCovPositions=deleteRowFromSymMatrix(covPosition,numbVertex2);
    Amg::MatrixX reducedConstraintCovPositions=deleteRowFromSymMatrix(covConstraintPosition,numbVertex2);
   
    myJetCandidate.setRecVertexPositions(RecVertexPositions(reducedRecPositions,
                                reducedCovPositions,
                                0.,0.));
    myJetCandidate.setConstraintVertexPositions(RecVertexPositions(reducedConstraintPositions,
                                   reducedConstraintCovPositions,
                                   0.,0.));
    
    
    myJetCandidate.setLinearizationVertexPositions(VertexPositions(reducedLinPositions));
    
    //now as a last step you need to delete the vertex you're not using anymore...
    
    std::vector<VxVertexOnJetAxis*> copyOfVerticesAtJetCandidate=myJetCandidate.getVerticesOnJetAxis();
    
    const std::vector<VxVertexOnJetAxis*>::iterator VerticesBegin=copyOfVerticesAtJetCandidate.begin();
    std::vector<VxVertexOnJetAxis*>::iterator VerticesEnd=copyOfVerticesAtJetCandidate.end();
    
    bool found=false;
    
    for (std::vector<VxVertexOnJetAxis*>::iterator VerticesIter=VerticesBegin;VerticesIter!=VerticesEnd;) {
      if ((*VerticesIter)==&vertex2) {
    delete *VerticesIter;
    VerticesIter=copyOfVerticesAtJetCandidate.erase(VerticesIter);
    VerticesEnd=copyOfVerticesAtJetCandidate.end();
    found=true;
      } else {
    ++VerticesIter;
      }
    }
    
    if (!found) {
      ATH_MSG_WARNING ("Could not find second vertex from which a cluster was created to delete it... Very strange... Check!!! ");
    }
    
    //update myJetCandidate with the new vector of tracks
    myJetCandidate.setVerticesOnJetAxis(copyOfVerticesAtJetCandidate);
 
    //now you should update the numbering scheme... CHECK CHECK... WHEN TO DO IT???????
    return vertex1;//return the merged vertex
    
  }

◆ 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.

◆ performKalmanConstraintToBePrimaryVertex()

void Trk::JetFitterHelper::performKalmanConstraintToBePrimaryVertex	(	RecVertexPositions &	positionToUpdate,
		const VxVertexOnJetAxis &	vertexToConstraint ) const

Performs a Kalman Update constraining the VxVertexOnJetAxis specified to be merged with the primary vertex.

You need to provide a copy of the RecVertexPositions, because this will be updated with the new constraint directly.

Definition at line 81 of file JetFitterHelper.cxx.

                                                                                     {
    
    //you need to copy the object... safeness here...
    const Amg::VectorX position(positionToUpdate.position());
    const Amg::MatrixX Ckm1(positionToUpdate.covariancePosition());
   
    if (position.rows()!=Ckm1.rows()) {
      ATH_MSG_WARNING ("Error in performKalmanConstraintToBePrimaryVertex method:" << 
                       " covariance matrix of size " << Ckm1.rows() << 
                       " and vector of VertexPositions do not match. Not performing " << 
                       "any constraint... ");
      return;
    }
 
    int numbRow(numRow(vertexToConstraint.getNumVertex()));
 
    //create the linearization matrix for primary vertex constraint
    Amg::MatrixX Gk(1,position.rows());Gk.setZero();
    Gk(0,numbRow)=1;   
  
    //applying *EXACT* constraint without error
    Amg::MatrixX Rk_km1=Ckm1.similarity(Gk);//+ApparentError;
 
    if(Rk_km1.determinant()==0) {
      ATH_MSG_WARNING ("The Rk_k-1 matrix inversion will fail - det(Rk)=0 detected."
                      " Constraint to primary vertex failed...");
      return;
    }
    Amg::MatrixX Rk_km1_inverse=Rk_km1.inverse().eval();
 
    //kalman gain matrix
    Amg::MatrixX Kk=Ckm1*Gk.transpose()*Rk_km1_inverse;
 
    //in this case the linearized constraint is just a scalar!
    AmgVector(1) ConstraintInOldPosition;
    ConstraintInOldPosition(0)=position[numbRow];
 
    Amg::VectorX newPosition=position-Kk*ConstraintInOldPosition;
 
    Amg::MatrixX newCovPosition=Ckm1-Kk*(2*Gk*Ckm1-Rk_km1*Kk.transpose());
 
    double newChi2=positionToUpdate.fitQuality().chiSquared()+Rk_km1_inverse.similarityT(ConstraintInOldPosition).determinant();
    
    double newNDF=positionToUpdate.fitQuality().numberDoF()+1;
    //double newNDF=positionToUpdate.doubleNdf()+1.;//fitQuality().numberDoF()+1;
 
    const Amg::MatrixX& symmetrizedMatrix(newCovPosition);
    positionToUpdate=Trk::RecVertexPositions(newPosition, symmetrizedMatrix, newNDF, newChi2);
  }

◆ performKalmanConstraintToMergeVertices()

void Trk::JetFitterHelper::performKalmanConstraintToMergeVertices	(	RecVertexPositions &	positionToUpdate,
		const VxVertexOnJetAxis &	vertexToConstraint1,
		const VxVertexOnJetAxis &	vertexToConstraint2 ) const

Performs a Kalman Update constraining the two VxVertexOnJetAxis specified to be merged.

You need to provide a copy of the RecVertexPositions, because this will be updated with the new constraint directly.

Definition at line 132 of file JetFitterHelper.cxx.

                                                                                        {
    
    //you need to copy the object... safeness here...
    const Amg::VectorX & position(positionToUpdate.position());
    const Amg::MatrixX & Ckm1(positionToUpdate.covariancePosition());
    
    if (position.rows()!=Ckm1.rows()) {
      ATH_MSG_WARNING("Error in performKalmanConstraintToBePrimaryVertex method: " << 
                      "covariance matrix dim " << Ckm1.rows() << " and vector of " << 
                      "VertexPositions dim " << position.rows() << " do not match."<<
                      " Not performing any constraint... ");
      return;
    }
    
    int numbRow1(numRow(vertexToConstraint1.getNumVertex()));
    int numbRow2(numRow(vertexToConstraint2.getNumVertex()));
    
    //create the linearization matrix for primary vertex constraint
    Amg::MatrixX Gk(1,position.rows()); Gk.setZero();
    Gk(0,numbRow1)=1;   
    Gk(0,numbRow2)=-1;
    
    //applying *EXACT* constraint without error
    AmgMatrix(1,1) Rk_km1=Ckm1.similarity(Gk);//+ApparentError;
    
    if(Rk_km1.determinant() ==0) {
      ATH_MSG_WARNING ("The Rk_k-1 matrix inversion will fail - Rk_k=0 detected."
                       " Constraint to primary vertex failed...");
      return;
    }
    AmgMatrix(1,1) Rk_km1_inverse=Rk_km1.inverse();
    
    //kalman gain matrix
    Amg::MatrixX Kk=Ckm1*Gk.transpose()*Rk_km1_inverse;
    
    //in this case the linearized constraint is just a scalar!
    AmgVector(1) ConstraintInOldPosition(1);
    ConstraintInOldPosition(0)=position[numbRow1]-position[numbRow2];
    
    Amg::VectorX newPosition=position-Kk*ConstraintInOldPosition;
 
    Amg::MatrixX newCovPosition=Ckm1-Kk*(2*Gk*Ckm1-Rk_km1*Kk.transpose());
    
    double newChi2=positionToUpdate.fitQuality().chiSquared()+Rk_km1_inverse.similarityT(ConstraintInOldPosition).determinant();
    double newNDF=positionToUpdate.fitQuality().numberDoF()+1;
 
    positionToUpdate=Trk::RecVertexPositions(newPosition,newCovPosition,newNDF,newChi2);
  } 

◆ 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.

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

◆ JetFitterHelper()

◆ ~JetFitterHelper()

Member Function Documentation

◆ addTracksOfFirstVertexToSecondVertex()

◆ declareGaudiProperty()

◆ declareProperty()

◆ detStore()

◆ evtStore()

◆ extraDeps_update_handler()

◆ inputHandles()

◆ interfaceID()

◆ mergeVertexToPrimaryInJetCandidate()

◆ mergeVerticesInJetCandidate()

◆ msg()

◆ msgLvl()

◆ outputHandles()

◆ performKalmanConstraintToBePrimaryVertex()

◆ performKalmanConstraintToMergeVertices()

◆ renounce()

◆ renounceArray()

◆ sysInitialize()

◆ sysStart()

◆ updateVHKA()

Member Data Documentation

◆ m_detStore

◆ m_evtStore

◆ m_varHandleArraysDeclared

◆ m_vhka