#include <TrigPrimaryVertexFitter.h>

Inheritance diagram for TrigPrimaryVertexFitter:

Collaboration diagram for TrigPrimaryVertexFitter:

Public Member Functions
	TrigPrimaryVertexFitter (const std::string &, const std::string &, const IInterface *)
virtual	~TrigPrimaryVertexFitter ()
virtual StatusCode	initialize ()
virtual StatusCode	finalize ()
virtual TrigVertex *	fit (const TrackCollection *, TrackCollection &, double z=0.0) const
virtual TrigVertex *	fit (const TrackCollection *, std::vector< double > &, double z=0.0) const
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
int	m_numIter
double	m_zVariance
double	m_maxChi2Increase
double	m_chi2cut
double	m_chi2cut_loose
bool	m_createTrackLists
double	m_xyVariance
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

Definition at line 11 of file TrigPrimaryVertexFitter.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

◆ TrigPrimaryVertexFitter()

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

Definition at line 31 of file TrigPrimaryVertexFitter.cxx.

                                               : AthAlgTool(t,n,p), 
                                     m_createTrackLists(false),
                                     m_xyVariance(10.0)
{
  declareInterface< ITrigPrimaryVertexFitter >( this );
  declareProperty( "numberOfIterations", m_numIter=3);
  declareProperty( "maxChi2Increase", m_maxChi2Increase=1000.0);
  declareProperty( "zVariance", m_zVariance=1.0);
  declareProperty( "Chi2Cut", m_chi2cut=15.0);
  declareProperty( "Chi2CutLoose", m_chi2cut_loose=100.0);
  declareProperty( "CreateTrackLists", m_createTrackLists=false);
  declareProperty( "xyVariance", m_xyVariance=10.0);
}

◆ ~TrigPrimaryVertexFitter()

TrigPrimaryVertexFitter::~TrigPrimaryVertexFitter ( )

virtual

Definition at line 63 of file TrigPrimaryVertexFitter.cxx.

{
 
}

Member Function Documentation

◆ 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

◆ finalize()

StatusCode TrigPrimaryVertexFitter::finalize ( )

virtual

Definition at line 57 of file TrigPrimaryVertexFitter.cxx.

{
  ATH_CHECK( AthAlgTool::finalize() );
  return StatusCode::SUCCESS;
}

◆ fit() [1/2]

TrigVertex * TrigPrimaryVertexFitter::fit	(	const TrackCollection *	tc,
		std::vector< double > &	Chi2V,
		double	z = 0.0 ) const

virtual

Implements ITrigPrimaryVertexFitter.

Definition at line 168 of file TrigPrimaryVertexFitter.cxx.

{
 
  TrigVertex* pVertex=NULL;
 
  double chi2;
  int ndof;
 
  std::vector<TrigPrimaryVertexTrack*> tracks;
  tracks.clear();
  Chi2V.clear();
  int idx=1;
  for(TrackCollection::const_iterator ptIt=tc->begin();ptIt!=tc->end();++ptIt)
  {
    TrigPrimaryVertexTrack* pT= new TrigPrimaryVertexTrack(*ptIt);
    if(pT!=NULL)
      {
    pT->setIndex(idx++);
    tracks.push_back(pT);
    Chi2V.push_back(-100.0);
      }
  }
 
  TrigL2Vertex* pV = new TrigL2Vertex();
 
  // 1. preliminary fit
 
  pV->getParametersVector()[0]=0.0;
  pV->getParametersVector()[1]=0.0;
  pV->getParametersVector()[2]=z0;
 
  memset(&pV->m_Gk[0][0],0,sizeof(pV->m_Gk));
  pV->m_Gk[0][0]=m_xyVariance*m_xyVariance;
  pV->m_Gk[1][1]=m_xyVariance*m_xyVariance;
  pV->m_Gk[2][2]=m_zVariance*m_zVariance;
 
  bool fitFailed=false;
  for(std::vector<TrigPrimaryVertexTrack*>::iterator it=tracks.begin();it!=tracks.end();++it)
    {
      double dchi2=(*it)->getChi2Distance(pV);
      if(std::isnan(dchi2)||(dchi2<0.0)||(dchi2>m_maxChi2Increase))
    {
      fitFailed=true;
      break;
    }
      if(dchi2<m_chi2cut_loose) (*it)->updateVertex(pV);
    }
  if(fitFailed) 
    {
      delete pV;
      for(std::vector<TrigPrimaryVertexTrack*>::iterator it=tracks.begin();
      it!=tracks.end();++it) delete (*it);
      return pVertex;
    }
 
  // 2. calculation of "smoothed" chi2s
 
  memset(&pV->m_Gk[0][0],0,sizeof(pV->m_Gk));
 
  for(std::vector<TrigPrimaryVertexTrack*>::iterator it=tracks.begin();it!=tracks.end();++it)
    {
      double dchi2=(*it)->getChi2Distance(pV);
      ATH_MSG_DEBUG("Track "<<(*it)->getIndex()<<" dchi2="<<dchi2 );
    }  
 
  // 3. sort tracks in accordance with their chi2s
 
  std::sort(tracks.begin(),tracks.end(),TrigPrimaryTrackSortPredicate());
 
  // 4. Final track fit
 
  pV->getParametersVector()[0]=0.0;
  pV->getParametersVector()[1]=0.0;
  pV->getParametersVector()[2]=z0;
  fitFailed=false;
  chi2=0.0;ndof=-3;
  for(int nIter=0;nIter<m_numIter;nIter++)
    {
      memset(&pV->m_Gk[0][0],0,sizeof(pV->m_Gk));
      pV->m_Gk[0][0]=100.0;
      pV->m_Gk[1][1]=100.0;
      pV->m_Gk[2][2]=m_zVariance*m_zVariance;
      chi2=0.0;ndof=-3;
      fitFailed=false;
 
      for(std::vector<TrigPrimaryVertexTrack*>::iterator it=tracks.begin();it!=tracks.end();++it)
    {
      double dchi2=(*it)->getChi2Distance(pV);
      Chi2V[(*it)->getIndex()-1]=dchi2;
          ATH_MSG_VERBOSE("Track "<<(*it)->getIndex()<<" dchi2="<<dchi2 );
      if(std::isnan(dchi2)||(dchi2<0.0)||(dchi2>m_maxChi2Increase))
        {
          fitFailed=true;
          break;
        }
      if(dchi2<m_chi2cut)
        {
          chi2+=dchi2;ndof+=2;
          (*it)->updateVertex(pV);
        }
      else
        {
              ATH_MSG_DEBUG("Skipping track "<<(*it)->getIndex()<<"due to large dchi2="<<dchi2 );
        }
    }
      if(fitFailed) break;
    }
  for(std::vector<TrigPrimaryVertexTrack*>::iterator it=tracks.begin();it!=tracks.end();++it)
    {
      delete (*it);
    }
 
  if(!fitFailed && (ndof>0))
    {
      ATH_MSG_DEBUG("Primary vertex fit OK, chi2 = "<<chi2<<" NDOF = "<<ndof );
      ATH_MSG_DEBUG("x= "<<pV->getParametersVector()[0]<<
                    " y= "<<pV->getParametersVector()[1]<<" z= "<<pV->getParametersVector()[2] );
      double cv[6];
      cv[0]=pV->m_Gk[0][0];cv[1]=pV->m_Gk[0][1];cv[2]=pV->m_Gk[1][1];
      cv[3]=pV->m_Gk[0][2];cv[4]=pV->m_Gk[1][2];cv[5]=pV->m_Gk[2][2];       
      pVertex = new TrigVertex(pV->getParametersVector()[0],
                   pV->getParametersVector()[1],
                   pV->getParametersVector()[2],cv,chi2,ndof,NULL);
    }
  delete pV;
 
  return pVertex;
}

◆ fit() [2/2]

TrigVertex * TrigPrimaryVertexFitter::fit	(	const TrackCollection *	tc,
		TrackCollection &	output_tc,
		double	z = 0.0 ) const

virtual

Implements ITrigPrimaryVertexFitter.

Definition at line 68 of file TrigPrimaryVertexFitter.cxx.

{
 
  TrigVertex* pVertex=NULL;
 
  double chi2;
  int ndof;
 
  std::vector<TrigPrimaryVertexTrack*> tracks;
  tracks.clear();
  int idx=1;
  for(TrackCollection::const_iterator ptIt=tc->begin();ptIt!=tc->end();++ptIt)
  {
    TrigPrimaryVertexTrack* pT= new TrigPrimaryVertexTrack(*ptIt);
    if(pT!=NULL) {
      pT->setIndex(idx++);
      tracks.push_back(pT);
    }
  }
 
  TrigL2Vertex* pV = new TrigL2Vertex();
 
  pV->getParametersVector()[0]=0.0;
  pV->getParametersVector()[1]=0.0;
  pV->getParametersVector()[2]=z0;
  bool fitFailed=false;
  chi2=0.0;ndof=-3;
  for(int nIter=0;nIter<m_numIter;nIter++)
  {
    memset(&pV->m_Gk[0][0],0,sizeof(pV->m_Gk));
    pV->m_Gk[0][0]=m_xyVariance*m_xyVariance;
    pV->m_Gk[1][1]=m_xyVariance*m_xyVariance;
    pV->m_Gk[2][2]=m_zVariance*m_zVariance;
    chi2=0.0;ndof=-3;
    fitFailed=false;
 
    for(std::vector<TrigPrimaryVertexTrack*>::iterator it=tracks.begin();it!=tracks.end();++it)
    {
      if(!(*it)->isActive()) 
        (*it)->activate();
 
      double dchi2=(*it)->getChi2Distance(pV);
      ATH_MSG_VERBOSE("Track "<<(*it)->getIndex()<<" dchi2="<<dchi2 );
      if(std::isnan(dchi2)||(dchi2<0.0)||(dchi2>m_maxChi2Increase))
      {
        fitFailed=true;
        break;
      }
      if(dchi2<m_chi2cut)
      {
        chi2+=dchi2;ndof+=2;
        (*it)->updateVertex(pV);
      }
      else
      {
        (*it)->mask();
        ATH_MSG_DEBUG("Skipping track "<<(*it)->getIndex()<<"due to large dchi2="<<dchi2 );
      }
    }
    if(fitFailed) break;
  }
 
 
  if(!fitFailed && (ndof>0))
  {
    ATH_MSG_DEBUG("Primary vertex fit OK, chi2 = "<<chi2<<" NDOF = "<<ndof );
    ATH_MSG_DEBUG("x= "<<pV->getParametersVector()[0]<<
        " y= "<<pV->getParametersVector()[1]<<" z= "<<pV->getParametersVector()[2] );
    double cv[6];
    cv[0]=pV->m_Gk[0][0];cv[1]=pV->m_Gk[0][1];cv[2]=pV->m_Gk[1][1];
    cv[3]=pV->m_Gk[0][2];cv[4]=pV->m_Gk[1][2];cv[5]=pV->m_Gk[2][2];     
    if(m_createTrackLists) {
      output_tc.clear();
      output_tc.reserve(tracks.size());
 
      for(std::vector<TrigPrimaryVertexTrack*>::iterator it=tracks.begin();it!=tracks.end();++it) {
        if ((*it)->isActive()) 
          output_tc.push_back(new Trk::Track(*(*it)->getTrkTrack()));
      }
    }
    pVertex = new TrigVertex(pV->getParametersVector()[0],
        pV->getParametersVector()[1],
        pV->getParametersVector()[2],cv,chi2,ndof, nullptr);
  }
  delete pV;
  for(std::vector<TrigPrimaryVertexTrack*>::iterator it=tracks.begin();it!=tracks.end();++it)
  {
    delete (*it);
  }
  return pVertex;
}

◆ initialize()

StatusCode TrigPrimaryVertexFitter::initialize ( )

virtual

Definition at line 47 of file TrigPrimaryVertexFitter.cxx.

{
  ATH_CHECK( AthAlgTool::initialize() );
 
  ATH_MSG_INFO( "Number of iterations is set to " << m_numIter  );
  ATH_MSG_INFO( "Accuracy of starting z-position is " << m_zVariance<<" mm"  );
  ATH_MSG_INFO( "Track lists created ? " << std::boolalpha<<m_createTrackLists );
  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 & ITrigPrimaryVertexFitter::interfaceID ( )

inlinestaticinherited

Definition at line 20 of file ITrigPrimaryVertexFitter.h.

                                          {
    return IID_ITrigPrimaryVertexFitter;
  }

◆ 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 >, and AthCheckedComponent<::AthAlgTool >.

◆ 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_chi2cut

double TrigPrimaryVertexFitter::m_chi2cut

private

Definition at line 23 of file TrigPrimaryVertexFitter.h.

◆ m_chi2cut_loose

double TrigPrimaryVertexFitter::m_chi2cut_loose

private

Definition at line 23 of file TrigPrimaryVertexFitter.h.

◆ m_createTrackLists

bool TrigPrimaryVertexFitter::m_createTrackLists

private

Definition at line 24 of file TrigPrimaryVertexFitter.h.

◆ 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_maxChi2Increase

double TrigPrimaryVertexFitter::m_maxChi2Increase

private

Definition at line 23 of file TrigPrimaryVertexFitter.h.

◆ m_numIter

int TrigPrimaryVertexFitter::m_numIter

private

Definition at line 22 of file TrigPrimaryVertexFitter.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.

◆ m_xyVariance

double TrigPrimaryVertexFitter::m_xyVariance

private

Definition at line 25 of file TrigPrimaryVertexFitter.h.

◆ m_zVariance

double TrigPrimaryVertexFitter::m_zVariance

private

Definition at line 23 of file TrigPrimaryVertexFitter.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

◆ TrigPrimaryVertexFitter()

◆ ~TrigPrimaryVertexFitter()

Member Function Documentation

◆ declareGaudiProperty()

◆ declareProperty()

◆ detStore()

◆ evtStore()

◆ extraDeps_update_handler()

◆ finalize()

◆ fit() [1/2]

◆ fit() [2/2]

◆ initialize()

◆ inputHandles()

◆ interfaceID()

◆ msg()

◆ msgLvl()

◆ outputHandles()

◆ renounce()

◆ renounceArray()

◆ sysInitialize()

◆ sysStart()

◆ updateVHKA()

Member Data Documentation

◆ m_chi2cut

◆ m_chi2cut_loose

◆ m_createTrackLists

◆ m_detStore

◆ m_evtStore

◆ m_maxChi2Increase

◆ m_numIter

◆ m_varHandleArraysDeclared

◆ m_vhka

◆ m_xyVariance

◆ m_zVariance