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
virtual	~BlockElementLinkerBase ()=default

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.

References linkPrefilter(), and testLink().

      : 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 23 of file PreshowerAndECALLinker.cc.

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

Referenced by PreshowerAndECALLinker().

                                                                                                                 {
  bool result = false;
  switch (elem1->type()) {
    case reco::PFBlockElement::PS1:
    case reco::PFBlockElement::PS2:
      result = (elem1->isMultilinksValide() && !elem1->getMultilinks().empty());
      break;
    case reco::PFBlockElement::ECAL:
      result = (elem2->isMultilinksValide() && !elem2->getMultilinks().empty());
      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 39 of file PreshowerAndECALLinker.cc.

References reco::PFBlockElementCluster::clusterRef(), LinkByRecHit::computeDist(), debug_, egammaTools::ecalEta(), egammaTools::ecalPhi(), Exception, edm::Ref< C, T, F >::isNull(), LinkByRecHit::testECALAndPSByRecHit(), reco::PFBlockElement::type(), and useKDTree_.

Referenced by PreshowerAndECALLinker().

                                                                                                              {
  const reco::PFBlockElementCluster *pselem(nullptr), *ecalelem(nullptr);
  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 18 of file PreshowerAndECALLinker.cc.

Referenced by testLink().

bool PreshowerAndECALLinker::useKDTree_

private

Definition at line 18 of file PreshowerAndECALLinker.cc.

Referenced by linkPrefilter(), and testLink().