IslandClusterAlgo Class Reference

#include <IslandClusterAlgo.h>

Public Types
enum	EcalPart { barrel = 0, endcap = 1 }
typedef math::XYZPoint	Point
	point in the space More...
enum	VerbosityLevel { pDEBUG = 0, pWARNING = 1, pINFO = 2, pERROR = 3 }

Public Member Functions
	IslandClusterAlgo ()
	IslandClusterAlgo (double ebst, double ecst, const PositionCalc &posCalc, const std::vector< int > &v_chstatusSeed_Barrel, const std::vector< int > &v_chstatusSeed_Endcap, const std::vector< int > &v_chstatus_Barrel, const std::vector< int > &v_chstatus_Endcap, VerbosityLevel the_verbosity=pERROR)
std::vector< reco::BasicCluster >	makeClusters (const EcalRecHitCollection *hits, const CaloSubdetectorGeometry *geometry, const CaloSubdetectorTopology *topology_p, const CaloSubdetectorGeometry *geometryES_p, EcalPart ecalPart, bool regional=false, const std::vector< RectangularEtaPhiRegion > &regions=std::vector< RectangularEtaPhiRegion >())
void	setVerbosity (VerbosityLevel the_verbosity)
virtual	~IslandClusterAlgo ()

Private Member Functions
void	mainSearch (const EcalRecHitCollection *hits, const CaloSubdetectorGeometry *geometry_p, const CaloSubdetectorTopology *topology_p, const CaloSubdetectorGeometry *geometryES_p, EcalPart ecalPart)
void	makeCluster (const EcalRecHitCollection *hits, const CaloSubdetectorGeometry *geometry_p, const CaloSubdetectorGeometry *geometryES_p)
void	searchEast (const CaloNavigator< DetId > &navigator, const CaloSubdetectorTopology *topology)
void	searchNorth (const CaloNavigator< DetId > &navigator)
void	searchSouth (const CaloNavigator< DetId > &navigator)
void	searchWest (const CaloNavigator< DetId > &navigator, const CaloSubdetectorTopology *topology)
bool	shouldBeAdded (EcalRecHitCollection::const_iterator candidate_it, EcalRecHitCollection::const_iterator previous_it)

Private Attributes
std::vector< reco::BasicCluster >	clusters_v
std::vector< std::pair< DetId, float > >	current_v
double	ecalBarrelSeedThreshold
double	ecalEndcapSeedThreshold
PositionCalc	posCalculator_
const EcalRecHitCollection *	recHits_
std::vector< EcalRecHit >	seeds
std::set< DetId >	used_s
std::vector< int >	v_chstatus_
std::vector< int >	v_chstatus_Barrel_
std::vector< int >	v_chstatus_Endcap_
std::vector< int >	v_chstatusSeed_
std::vector< int >	v_chstatusSeed_Barrel_
std::vector< int >	v_chstatusSeed_Endcap_
VerbosityLevel	verbosity

Detailed Description

Definition at line 26 of file IslandClusterAlgo.h.

Member Typedef Documentation

Point

typedef math::XYZPoint IslandClusterAlgo::Point

point in the space

Definition at line 66 of file IslandClusterAlgo.h.

Member Enumeration Documentation

EcalPart

enum IslandClusterAlgo::EcalPart

Enumerator
barrel
endcap

Definition at line 28 of file IslandClusterAlgo.h.

{ barrel = 0, endcap = 1 };

VerbosityLevel

enum IslandClusterAlgo::VerbosityLevel

Enumerator
pDEBUG
pWARNING
pINFO
pERROR

Definition at line 29 of file IslandClusterAlgo.h.

{ pDEBUG = 0, pWARNING = 1, pINFO = 2, pERROR = 3 };

Constructor & Destructor Documentation

IslandClusterAlgo() [1/2]

IslandClusterAlgo::IslandClusterAlgo ( )

inline

Definition at line 31 of file IslandClusterAlgo.h.

{}

IslandClusterAlgo() [2/2]

IslandClusterAlgo::IslandClusterAlgo ( double  ebst, double  ecst, const PositionCalc &  posCalc, const std::vector< int > &  v_chstatusSeed_Barrel, const std::vector< int > &  v_chstatusSeed_Endcap, const std::vector< int > &  v_chstatus_Barrel, const std::vector< int > &  v_chstatus_Endcap, VerbosityLevel  the_verbosity = pERROR  )

inline

Definition at line 33 of file IslandClusterAlgo.h.

References posCalculator_.

      : ecalBarrelSeedThreshold(ebst),
        ecalEndcapSeedThreshold(ecst),
        v_chstatusSeed_Barrel_(v_chstatusSeed_Barrel),
        v_chstatusSeed_Endcap_(v_chstatusSeed_Endcap),
        v_chstatus_Barrel_(v_chstatus_Barrel),
        v_chstatus_Endcap_(v_chstatus_Endcap),
        verbosity(the_verbosity) {
    posCalculator_ = posCalc;
  }

~IslandClusterAlgo()

virtual IslandClusterAlgo::~IslandClusterAlgo ( )

inlinevirtual

Definition at line 51 of file IslandClusterAlgo.h.

{}

Member Function Documentation

mainSearch()

void IslandClusterAlgo::mainSearch ( const EcalRecHitCollection *  hits, const CaloSubdetectorGeometry *  geometry_p, const CaloSubdetectorTopology *  topology_p, const CaloSubdetectorGeometry *  geometryES_p, EcalPart  ecalPart  )

private

Definition at line 109 of file IslandClusterAlgo.cc.

References gather_cfg::cout, current_v, hfClusterShapes_cfi::hits, makeCluster(), HLT_2022v15_cff::navigator, pINFO, searchEast(), searchNorth(), searchSouth(), searchWest(), seeds, used_s, and verbosity.

Referenced by makeClusters().

                                                      {
  if (verbosity < pINFO) {
    std::cout << "Building clusters............" << std::endl;
  }

  // Loop over seeds:
  std::vector<EcalRecHit>::iterator it;
  for (it = seeds.begin(); it != seeds.end(); it++) {
    // make sure the current seed does not belong to a cluster already.
    if (used_s.find(it->id()) != used_s.end()) {
      if (it == seeds.begin()) {
        if (verbosity < pINFO) {
          std::cout << "##############################################################" << std::endl;
          std::cout << "DEBUG ALERT: Highest energy seed already belongs to a cluster!" << std::endl;
          std::cout << "##############################################################" << std::endl;
        }
      }
      continue;
    }

    // clear the vector of hits in current cluster
    current_v.clear();

    current_v.push_back(std::pair<DetId, float>(it->id(), 1.));  // by default hit energy fractions are set at 1.
    used_s.insert(it->id());

    // Create a navigator at the seed
    CaloNavigator<DetId> navigator(it->id(), topology_p);

    searchNorth(navigator);
    navigator.home();
    searchSouth(navigator);
    navigator.home();
    searchWest(navigator, topology_p);
    navigator.home();
    searchEast(navigator, topology_p);

    makeCluster(hits, geometry_p, geometryES_p);
  }
}

makeCluster()

void IslandClusterAlgo::makeCluster ( const EcalRecHitCollection *  hits, const CaloSubdetectorGeometry *  geometry_p, const CaloSubdetectorGeometry *  geometryES_p  )

private

Definition at line 253 of file IslandClusterAlgo.cc.

References PositionCalc::Calculate_Location(), clusters_v, gather_cfg::cout, current_v, reco::CaloID::DET_ECAL_BARREL, reco::CaloID::DET_ECAL_ENDCAP, EcalBarrel, HCALHighEnergyHPDFilter_cfi::energy, EcalRecHit::energy(), hfClusterShapes_cfi::hits, reco::CaloCluster::island, pINFO, posCalculator_, position, and verbosity.

Referenced by mainSearch().

                                                                               {
  double energy = 0;
  reco::CaloID caloID;

  Point position;
  position = posCalculator_.Calculate_Location(current_v, hits, geometry, geometryES);

  std::vector<std::pair<DetId, float> >::iterator it;
  for (it = current_v.begin(); it != current_v.end(); it++) {
    EcalRecHitCollection::const_iterator itt = hits->find((*it).first);
    EcalRecHit hit_p = *itt;
    if ((*it).first.subdetId() == EcalBarrel) {
      caloID = reco::CaloID::DET_ECAL_BARREL;
    } else {
      caloID = reco::CaloID::DET_ECAL_ENDCAP;
    }
    //      if (hit_p != 0)
    //  {
    energy += hit_p.energy();
    //  }
    //      else
    //  {
    //    std::cout << "DEBUG ALERT: Requested rechit has gone missing from rechits map! :-S" << std::endl;
    //  }
  }

  if (verbosity < pINFO) {
    std::cout << "******** NEW CLUSTER ********" << std::endl;
    std::cout << "No. of crystals = " << current_v.size() << std::endl;
    std::cout << "     Energy     = " << energy << std::endl;
    std::cout << "     Phi        = " << position.phi() << std::endl;
    std::cout << "     Eta        = " << position.eta() << std::endl;
    std::cout << "*****************************" << std::endl;
  }
  clusters_v.push_back(reco::BasicCluster(energy, position, caloID, current_v, reco::CaloCluster::island));
}

makeClusters()

std::vector< reco::BasicCluster > IslandClusterAlgo::makeClusters	(	const EcalRecHitCollection *	hits,
		const CaloSubdetectorGeometry *	geometry,
		const CaloSubdetectorTopology *	topology_p,
		const CaloSubdetectorGeometry *	geometryES_p,
		EcalPart	ecalPart,
		bool	regional = false,
		const std::vector< RectangularEtaPhiRegion > &	regions = std::vector<RectangularEtaPhiRegion>()
	)

Definition at line 17 of file IslandClusterAlgo.cc.

References barrel, clusters_v, gather_cfg::cout, ecalBarrelSeedThreshold, ecalEndcapSeedThreshold, endcap, HCALHighEnergyHPDFilter_cfi::energy, ET, CaloSubdetectorGeometry::getGeometry(), hfClusterShapes_cfi::hits, isClusterEtLess(), EcalRecHit::kGood, mainSearch(), pINFO, position, recHits_, HLT_2022v15_cff::region, seeds, jetsAK4_CHS_cff::sort, AlCaHLTBitMon_QueryRunRegistry::string, remoteMonitoring_LASER_era2018_cfg::threshold, used_s, v_chstatus_, v_chstatus_Barrel_, v_chstatus_Endcap_, v_chstatusSeed_, v_chstatusSeed_Barrel_, v_chstatusSeed_Endcap_, verbosity, x, and y.

Referenced by IslandClusterProducer::clusterizeECALPart(), and Pi0FixedMassWindowCalibration::duringLoop().

                                                                                                                   {
  seeds.clear();
  used_s.clear();
  clusters_v.clear();

  recHits_ = hits;

  double threshold = 0;
  std::string ecalPart_string;
  if (ecalPart == endcap) {
    threshold = ecalEndcapSeedThreshold;
    ecalPart_string = "EndCap";
    v_chstatusSeed_ = v_chstatusSeed_Endcap_;
    v_chstatus_ = v_chstatus_Endcap_;
  }
  if (ecalPart == barrel) {
    threshold = ecalBarrelSeedThreshold;
    ecalPart_string = "Barrel";
    v_chstatusSeed_ = v_chstatusSeed_Barrel_;
    v_chstatus_ = v_chstatus_Barrel_;
  }

  if (verbosity < pINFO) {
    std::cout << "-------------------------------------------------------------" << std::endl;
    std::cout << "Island algorithm invoked for ECAL" << ecalPart_string << std::endl;
    std::cout << "Looking for seeds, energy threshold used = " << threshold << " GeV" << std::endl;
  }

  int nregions = 0;
  if (regional)
    nregions = regions.size();

  if (!regional || nregions) {
    EcalRecHitCollection::const_iterator it;
    for (it = hits->begin(); it != hits->end(); it++) {
      double energy = it->energy();
      if (energy < threshold)
        continue;  // need to check to see if this line is useful!

      // avoid seeding for anomalous channels
      if (!it->checkFlag(EcalRecHit::kGood)) {  // if rechit is good, no need for further checks
        if (it->checkFlags(v_chstatus_) || it->checkFlags(v_chstatusSeed_)) {
          continue;  // the recHit has to be excluded from seeding
        }
      }

      auto thisCell = geometry_p->getGeometry(it->id());
      auto const &position = thisCell->getPosition();

      // Require that RecHit is within clustering region in case
      // of regional reconstruction
      bool withinRegion = false;
      if (regional) {
        std::vector<RectangularEtaPhiRegion>::const_iterator region;
        for (region = regions.begin(); region != regions.end(); region++) {
          if (region->inRegion(thisCell->etaPos(), thisCell->phiPos())) {
            withinRegion = true;
            break;
          }
        }
      }

      if (!regional || withinRegion) {
        float ET = it->energy() * position.basicVector().unit().perp();
        if (ET > threshold)
          seeds.push_back(*it);
      }
    }
  }

  sort(seeds.begin(), seeds.end(), [](auto const &x, auto const &y) { return x.energy() > y.energy(); });

  if (verbosity < pINFO) {
    std::cout << "Total number of seeds found in event = " << seeds.size() << std::endl;
  }

  mainSearch(hits, geometry_p, topology_p, geometryES_p, ecalPart);
  sort(clusters_v.rbegin(), clusters_v.rend(), isClusterEtLess);

  if (verbosity < pINFO) {
    std::cout << "---------- end of main search. clusters have been sorted ----" << std::endl;
  }

  return clusters_v;
}

searchEast()

void IslandClusterAlgo::searchEast ( const CaloNavigator< DetId > &  navigator, const CaloSubdetectorTopology *  topology  )

private

Definition at line 216 of file IslandClusterAlgo.cc.

References current_v, edm::SortedCollection< T, SORT >::find(), CaloNavigator< T, TOPO >::home(), HLT_2022v15_cff::navigator, recHits_, searchNorth(), searchSouth(), shouldBeAdded(), and used_s.

Referenced by mainSearch().

                                                                                                                 {
  DetId western = navigator.pos();
  EcalRecHitCollection::const_iterator western_it = recHits_->find(western);

  DetId eastern = navigator.east();
  if (eastern == DetId(0))
    return;  // This means that we went off the ECAL!
  EcalRecHitCollection::const_iterator eastern_it = recHits_->find(eastern);

  if (shouldBeAdded(eastern_it, western_it)) {
    CaloNavigator<DetId> nsNavigator(eastern, topology);

    searchNorth(nsNavigator);
    nsNavigator.home();
    searchSouth(nsNavigator);
    nsNavigator.home();
    searchEast(navigator, topology);

    current_v.push_back(std::pair<DetId, float>(eastern, 1.));  // by default hit energy fractions are set at 1.
    used_s.insert(eastern);
  }
}

searchNorth()

void IslandClusterAlgo::searchNorth ( const CaloNavigator< DetId > &  navigator )

private

Definition at line 154 of file IslandClusterAlgo.cc.

References current_v, edm::SortedCollection< T, SORT >::find(), HLT_2022v15_cff::navigator, recHits_, shouldBeAdded(), and used_s.

Referenced by mainSearch(), searchEast(), and searchWest().

                                                                         {
  DetId southern = navigator.pos();

  DetId northern = navigator.north();
  if (northern == DetId(0))
    return;  // This means that we went off the ECAL!
  // if the crystal to the north belongs to another cluster return
  if (used_s.find(northern) != used_s.end())
    return;

  EcalRecHitCollection::const_iterator southern_it = recHits_->find(southern);
  EcalRecHitCollection::const_iterator northern_it = recHits_->find(northern);

  if (shouldBeAdded(northern_it, southern_it)) {
    current_v.push_back(std::pair<DetId, float>(northern, 1.));  // by default hit energy fractions are set at 1.
    used_s.insert(northern);
    searchNorth(navigator);
  }
}

searchSouth()

void IslandClusterAlgo::searchSouth ( const CaloNavigator< DetId > &  navigator )

private

Definition at line 174 of file IslandClusterAlgo.cc.

References current_v, edm::SortedCollection< T, SORT >::find(), HLT_2022v15_cff::navigator, recHits_, shouldBeAdded(), and used_s.

Referenced by mainSearch(), searchEast(), and searchWest().

                                                                         {
  DetId northern = navigator.pos();

  DetId southern = navigator.south();
  if (southern == DetId(0))
    return;  // This means that we went off the ECAL!
  if (used_s.find(southern) != used_s.end())
    return;

  EcalRecHitCollection::const_iterator northern_it = recHits_->find(northern);
  EcalRecHitCollection::const_iterator southern_it = recHits_->find(southern);

  if (shouldBeAdded(southern_it, northern_it)) {
    current_v.push_back(std::pair<DetId, float>(southern, 1.));  // by default hit energy fractions are set at 1.
    used_s.insert(southern);
    searchSouth(navigator);
  }
}

searchWest()

void IslandClusterAlgo::searchWest ( const CaloNavigator< DetId > &  navigator, const CaloSubdetectorTopology *  topology  )

private

Definition at line 193 of file IslandClusterAlgo.cc.

References current_v, edm::SortedCollection< T, SORT >::find(), CaloNavigator< T, TOPO >::home(), HLT_2022v15_cff::navigator, recHits_, searchNorth(), searchSouth(), shouldBeAdded(), and used_s.

Referenced by mainSearch().

                                                                                                                 {
  DetId eastern = navigator.pos();
  EcalRecHitCollection::const_iterator eastern_it = recHits_->find(eastern);

  DetId western = navigator.west();
  if (western == DetId(0))
    return;  // This means that we went off the ECAL!
  EcalRecHitCollection::const_iterator western_it = recHits_->find(western);

  if (shouldBeAdded(western_it, eastern_it)) {
    CaloNavigator<DetId> nsNavigator(western, topology);

    searchNorth(nsNavigator);
    nsNavigator.home();
    searchSouth(nsNavigator);
    nsNavigator.home();
    searchWest(navigator, topology);

    current_v.push_back(std::pair<DetId, float>(western, 1.));  // by default hit energy fractions are set at 1.
    used_s.insert(western);
  }
}

setVerbosity()

void IslandClusterAlgo::setVerbosity ( VerbosityLevel  the_verbosity )

inline

Definition at line 53 of file IslandClusterAlgo.h.

References verbosity.

{ verbosity = the_verbosity; }

shouldBeAdded()

bool IslandClusterAlgo::shouldBeAdded ( EcalRecHitCollection::const_iterator  candidate_it, EcalRecHitCollection::const_iterator  previous_it  )

private

Definition at line 240 of file IslandClusterAlgo.cc.

References edm::SortedCollection< T, SORT >::end(), EcalRecHit::kGood, recHits_, used_s, and v_chstatus_.

Referenced by searchEast(), searchNorth(), searchSouth(), and searchWest().

                                                                                      {
  // crystal should not be included...
  if ((candidate_it == recHits_->end()) ||                  // ...if it does not correspond to a hit
      (used_s.find(candidate_it->id()) != used_s.end()) ||  // ...if it already belongs to a cluster
      (candidate_it->energy() <= 0) ||                      // ...if it has a negative or zero energy
      (candidate_it->energy() > previous_it->energy()) ||   // ...or if the previous crystal had lower E
      (!(candidate_it->checkFlag(EcalRecHit::kGood)) && candidate_it->checkFlags(v_chstatus_))) {
    return false;
  }
  return true;
}

Member Data Documentation

clusters_v

std::vector<reco::BasicCluster> IslandClusterAlgo::clusters_v

private

Definition at line 89 of file IslandClusterAlgo.h.

Referenced by makeCluster(), and makeClusters().

current_v

std::vector<std::pair<DetId, float> > IslandClusterAlgo::current_v

private

Definition at line 86 of file IslandClusterAlgo.h.

Referenced by mainSearch(), makeCluster(), searchEast(), searchNorth(), searchSouth(), and searchWest().

ecalBarrelSeedThreshold

double IslandClusterAlgo::ecalBarrelSeedThreshold

private

Definition at line 73 of file IslandClusterAlgo.h.

Referenced by makeClusters().

ecalEndcapSeedThreshold

double IslandClusterAlgo::ecalEndcapSeedThreshold

private

Definition at line 74 of file IslandClusterAlgo.h.

Referenced by makeClusters().

posCalculator_

PositionCalc IslandClusterAlgo::posCalculator_

private

Definition at line 70 of file IslandClusterAlgo.h.

Referenced by IslandClusterAlgo(), and makeCluster().

recHits_

const EcalRecHitCollection* IslandClusterAlgo::recHits_

private

Definition at line 77 of file IslandClusterAlgo.h.

Referenced by makeClusters(), searchEast(), searchNorth(), searchSouth(), searchWest(), and shouldBeAdded().

seeds

std::vector<EcalRecHit> IslandClusterAlgo::seeds

private

Definition at line 80 of file IslandClusterAlgo.h.

Referenced by mainSearch(), and makeClusters().

used_s

std::set<DetId> IslandClusterAlgo::used_s

private

Definition at line 83 of file IslandClusterAlgo.h.

Referenced by mainSearch(), makeClusters(), searchEast(), searchNorth(), searchSouth(), searchWest(), and shouldBeAdded().

v_chstatus_

std::vector<int> IslandClusterAlgo::v_chstatus_

private

Definition at line 100 of file IslandClusterAlgo.h.

Referenced by makeClusters(), and shouldBeAdded().

v_chstatus_Barrel_

std::vector<int> IslandClusterAlgo::v_chstatus_Barrel_

private

Definition at line 96 of file IslandClusterAlgo.h.

Referenced by makeClusters().

v_chstatus_Endcap_

std::vector<int> IslandClusterAlgo::v_chstatus_Endcap_

private

Definition at line 97 of file IslandClusterAlgo.h.

Referenced by makeClusters().

v_chstatusSeed_

std::vector<int> IslandClusterAlgo::v_chstatusSeed_

private

Definition at line 99 of file IslandClusterAlgo.h.

Referenced by makeClusters().

v_chstatusSeed_Barrel_

std::vector<int> IslandClusterAlgo::v_chstatusSeed_Barrel_

private

Definition at line 92 of file IslandClusterAlgo.h.

Referenced by makeClusters().

v_chstatusSeed_Endcap_

std::vector<int> IslandClusterAlgo::v_chstatusSeed_Endcap_

private

Definition at line 93 of file IslandClusterAlgo.h.

Referenced by makeClusters().

verbosity

VerbosityLevel IslandClusterAlgo::verbosity

private

Definition at line 103 of file IslandClusterAlgo.h.

Referenced by mainSearch(), makeCluster(), makeClusters(), and setVerbosity().