PreshowerAndECALLinker Class Reference

Inheritance diagram for PreshowerAndECALLinker:

Public Member Functions
bool	linkPrefilter (const reco::PFBlockElement *, const reco::PFBlockElement *) const override
	PreshowerAndECALLinker (const edm::ParameterSet &conf)
double	testLink (const reco::PFBlockElement *, const reco::PFBlockElement *) const override
Public Member Functions inherited from BlockElementLinkerBase
	BlockElementLinkerBase (const edm::ParameterSet &conf)
	BlockElementLinkerBase (const BlockElementLinkerBase &)=delete
const std::string &	name () const
BlockElementLinkerBase &	operator= (const BlockElementLinkerBase &)=delete

Private Attributes
bool	_debug
bool	_useKDTree

Detailed Description

Definition at line 6 of file PreshowerAndECALLinker.cc.

Constructor & Destructor Documentation

PreshowerAndECALLinker::PreshowerAndECALLinker ( const edm::ParameterSet &  conf )

inline

Definition at line 8 of file PreshowerAndECALLinker.cc.

                                                      :
    BlockElementLinkerBase(conf),
    _useKDTree(conf.getParameter<bool>("useKDTree")),
    _debug(conf.getUntrackedParameter<bool>("debug",false)) {}

Member Function Documentation

bool PreshowerAndECALLinker::linkPrefilter ( const reco::PFBlockElement *  elem1, const reco::PFBlockElement *  elem2  ) const

overridevirtual

Reimplemented from BlockElementLinkerBase.

Definition at line 28 of file PreshowerAndECALLinker.cc.

References _useKDTree, reco::PFBlockElement::ECAL, reco::PFBlockElement::getMultilinks(), reco::PFBlockElement::isMultilinksValide(), reco::PFBlockElement::PS1, reco::PFBlockElement::PS2, mps_fire::result, and reco::PFBlockElement::type().

                                                   {  
  bool result = false;
  switch( elem1->type() ){
  case reco::PFBlockElement::PS1:
  case reco::PFBlockElement::PS2:
    result = ( elem1->isMultilinksValide() && 
           elem1->getMultilinks().size() > 0 );    
    break;
  case reco::PFBlockElement::ECAL:
    result = ( elem2->isMultilinksValide() && 
           elem2->getMultilinks().size() > 0 );
    break;
  default:
    break;
  }   
  return (_useKDTree ? result : true);
}

double PreshowerAndECALLinker::testLink ( const reco::PFBlockElement *  elem1, const reco::PFBlockElement *  elem2  ) const

overridevirtual

Implements BlockElementLinkerBase.

Definition at line 48 of file PreshowerAndECALLinker.cc.

References _debug, _useKDTree, reco::PFBlockElementCluster::clusterRef(), LinkByRecHit::computeDist(), Exception, edm::Ref< C, T, F >::isNull(), NULL, LinkByRecHit::testECALAndPSByRecHit(), and reco::PFBlockElement::type().

                                             {  
  const reco::PFBlockElementCluster *pselem(NULL), *ecalelem(NULL);
  double dist(-1.0);
  if( elem1->type() < elem2->type() ) {
    pselem = static_cast<const reco::PFBlockElementCluster*>(elem1);
    ecalelem = static_cast<const reco::PFBlockElementCluster*>(elem2);
  } else {
    pselem = static_cast<const reco::PFBlockElementCluster*>(elem2);
    ecalelem = static_cast<const reco::PFBlockElementCluster*>(elem1);
  }
  const reco::PFClusterRef& psref = pselem->clusterRef();
  const reco::PFClusterRef& ecalref = ecalelem->clusterRef();  
  if( psref.isNull() || ecalref.isNull() ) {
    throw cms::Exception("BadClusterRefs") 
      << "PFBlockElementCluster's refs are null!";
  }  
  // Check if the linking has been done using the KDTree algo
  // Glowinski & Gouzevitch
  if ( _useKDTree && pselem->isMultilinksValide() ) { // KDTree algo
    const reco::PFMultilinksType& multilinks = pselem->getMultilinks(); 
    const reco::PFCluster::REPPoint&  ecalreppos = ecalref->positionREP();
    const math::XYZPoint& ecalxyzpos = ecalref->position();
    const math::XYZPoint& psxyzpos = psref->position();
    const double ecalPhi = ecalreppos.Phi();
    const double ecalEta = ecalreppos.Eta();
    
    // Check if the link PS/Ecal exist
    reco::PFMultilinksType::const_iterator mlit = multilinks.begin();
    for (; mlit != multilinks.end(); ++mlit)
      if ((mlit->first == ecalPhi) && (mlit->second == ecalEta))
    break;
    
    // If the link exist, we fill dist and linktest. 
    if (mlit != multilinks.end()){      
      dist = 
    LinkByRecHit::computeDist(ecalxyzpos.X()/1000.,ecalxyzpos.Y()/1000.,
                  psxyzpos.X()/1000.  ,psxyzpos.Y()/1000., 
                  false);
    }   
  } else { //Old algorithm
    dist = LinkByRecHit::testECALAndPSByRecHit( *ecalref, *psref ,_debug);
  }
  return dist;
}

Member Data Documentation

bool PreshowerAndECALLinker::_debug

private

Definition at line 20 of file PreshowerAndECALLinker.cc.

Referenced by testLink().

bool PreshowerAndECALLinker::_useKDTree

private

Definition at line 20 of file PreshowerAndECALLinker.cc.

Referenced by linkPrefilter(), and testLink().