PFMultiDepthClusterizer Class Reference

Inheritance diagram for PFMultiDepthClusterizer:

Classes
class	ClusterLink

Public Member Functions
void	buildClusters (const reco::PFClusterCollection &, const std::vector< bool > &, reco::PFClusterCollection &outclus) override
B2DGPF &	operator= (const B2DGPF &)=delete
	PFMultiDepthClusterizer (const B2DGPF &)=delete
	PFMultiDepthClusterizer (const edm::ParameterSet &conf, edm::ConsumesCollector &cc)
void	update (const edm::EventSetup &es) override
	~PFMultiDepthClusterizer () override=default
Public Member Functions inherited from PFClusterBuilderBase
std::ostream &	operator<< (std::ostream &o) const
PFCBB &	operator= (const PFCBB &)=delete
	PFClusterBuilderBase (const edm::ParameterSet &conf, edm::ConsumesCollector &cc)
	PFClusterBuilderBase (const PFCBB &)=delete
void	reset ()
virtual	~PFClusterBuilderBase ()=default

Private Types
typedef PFMultiDepthClusterizer	B2DGPF

Private Member Functions
void	absorbCluster (reco::PFCluster &, const reco::PFCluster &)
void	calculateShowerShapes (const reco::PFClusterCollection &, std::vector< double > &, std::vector< double > &)
void	expandCluster (reco::PFCluster &, unsigned int point, std::vector< bool > &mask, const reco::PFClusterCollection &, const std::vector< ClusterLink > &links)
std::vector< ClusterLink >	link (const reco::PFClusterCollection &, const std::vector< double > &, const std::vector< double > &)
std::vector< ClusterLink >	prune (std::vector< ClusterLink > &, std::vector< bool > &linkedClusters)

Private Attributes
std::unique_ptr< PFCPositionCalculatorBase >	_allCellsPosCalc
double	nSigmaEta_
double	nSigmaPhi_

Additional Inherited Members
Public Types inherited from PFClusterBuilderBase
typedef PFCPositionCalculatorBase	PosCalc
Protected Attributes inherited from PFClusterBuilderBase
const float	_minFractionToKeep
unsigned	_nClustersFound
unsigned	_nSeeds
std::unique_ptr< PosCalc >	_positionCalc

Detailed Description

Definition at line 15 of file PFMultiDepthClusterizer.cc.

Member Typedef Documentation

B2DGPF

typedef PFMultiDepthClusterizer PFMultiDepthClusterizer::B2DGPF

private

Definition at line 16 of file PFMultiDepthClusterizer.cc.

Constructor & Destructor Documentation

PFMultiDepthClusterizer() [1/2]

PFMultiDepthClusterizer::PFMultiDepthClusterizer	(	const edm::ParameterSet &	conf,
		edm::ConsumesCollector &	cc
	)

Definition at line 79 of file PFMultiDepthClusterizer.cc.

    : PFClusterBuilderBase(conf, cc) {
  if (conf.exists("allCellsPositionCalc")) {
    const edm::ParameterSet& acConf = conf.getParameterSet("allCellsPositionCalc");
    const std::string& algoac = acConf.getParameter<std::string>("algoName");
    _allCellsPosCalc = PFCPositionCalculatorFactory::get()->create(algoac, acConf, cc);
  }
 
  nSigmaEta_ = pow(conf.getParameter<double>("nSigmaEta"), 2);
  nSigmaPhi_ = pow(conf.getParameter<double>("nSigmaPhi"), 2);
}

References _allCellsPosCalc, edm::ParameterSet::exists(), get, edm::ParameterSet::getParameter(), edm::ParameterSet::getParameterSet(), nSigmaEta_, nSigmaPhi_, funct::pow(), and AlCaHLTBitMon_QueryRunRegistry::string.

~PFMultiDepthClusterizer()

PFMultiDepthClusterizer::~PFMultiDepthClusterizer ( )

overridedefault

PFMultiDepthClusterizer() [2/2]

PFMultiDepthClusterizer::PFMultiDepthClusterizer ( const B2DGPF &  )

delete

Member Function Documentation

absorbCluster()

void PFMultiDepthClusterizer::absorbCluster ( reco::PFCluster &  main, const reco::PFCluster &  added  )

private

Definition at line 252 of file PFMultiDepthClusterizer.cc.

                                                                                           {
  double e1 = 0.0;
  double e2 = 0.0;
 
  //find seeds
  for (const auto& fraction : main.recHitFractions())
    if (fraction.recHitRef()->detId() == main.seed()) {
      e1 = fraction.recHitRef()->energy();
    }
 
  for (const auto& fraction : added.recHitFractions()) {
    main.addRecHitFraction(fraction);
    if (fraction.recHitRef()->detId() == added.seed()) {
      e2 = fraction.recHitRef()->energy();
    }
  }
  if (e2 > e1)
    main.setSeed(added.seed());
}

References StorageManager_cfg::e1, HLT_FULL_cff::fraction, reco::PFCluster::recHitFractions(), and reco::CaloCluster::seed().

Referenced by expandCluster().

buildClusters()

void PFMultiDepthClusterizer::buildClusters ( const reco::PFClusterCollection &  input, const std::vector< bool > &  seedable, reco::PFClusterCollection &  outclus  )

overridevirtual

Implements PFClusterBuilderBase.

Definition at line 91 of file PFMultiDepthClusterizer.cc.

                                                                             {
  std::vector<double> etaRMS2(input.size(), 0.0);
  std::vector<double> phiRMS2(input.size(), 0.0);
 
  //We need to sort the clusters for smaller to larger depth
  //  for (unsigned int i=0;i<input.size();++i)
  //   printf(" cluster%f %f \n",input[i].depth(),input[i].energy());
 
  //calculate cluster shapes
  calculateShowerShapes(input, etaRMS2, phiRMS2);
 
  //link
  auto&& links = link(input, etaRMS2, phiRMS2);
  //  for (const auto& link: links)
  //    printf("link %d %d %f %f\n",link.from(),link.to(),link.dR(),link.dZ());
 
  std::vector<bool> mask(input.size(), false);
  std::vector<bool> linked(input.size(), false);
 
  //prune
  auto&& prunedLinks = prune(links, linked);
 
  //printf("Pruned links\n")
  //  for (const auto& link: prunedLinks)
  //  printf("link %d %d %f %f\n",link.from(),link.to(),link.dR(),link.dZ());
 
  //now we need to build clusters
  for (unsigned int i = 0; i < input.size(); ++i) {
    //if not masked
    if (mask[i])
      continue;
    //if not linked just spit it out
    if (!linked[i]) {
      output.push_back(input[i]);
      //      printf("Added single cluster with energy =%f \n",input[i].energy());
      mask[i] = true;
      continue;
    }
 
    //now business: if  linked and not  masked gather clusters
    reco::PFCluster cluster = input[i];
    mask[i] = true;
    expandCluster(cluster, i, mask, input, prunedLinks);
    _allCellsPosCalc->calculateAndSetPosition(cluster);
    output.push_back(cluster);
    //    printf("Added linked cluster with energy =%f\n",cluster.energy());
  }
}

References _allCellsPosCalc, calculateShowerShapes(), expandCluster(), mps_fire::i, input, link(), electronStore::links, convertSQLitetoXML_cfg::output, and prune().

calculateShowerShapes()

void PFMultiDepthClusterizer::calculateShowerShapes ( const reco::PFClusterCollection &  clusters, std::vector< double > &  etaRMS2, std::vector< double > &  phiRMS2  )

private

Definition at line 142 of file PFMultiDepthClusterizer.cc.

                                                                                {
  //shower shapes. here do not use the fractions
 
  for (unsigned int i = 0; i < clusters.size(); ++i) {
    const reco::PFCluster& cluster = clusters[i];
    double etaSum = 0.0;
    double phiSum = 0.0;
    auto const& crep = cluster.positionREP();
    for (const auto& frac : cluster.recHitFractions()) {
      auto const& h = *frac.recHitRef();
      auto const& rep = h.positionREP();
      etaSum += (frac.fraction() * h.energy()) * std::abs(rep.eta() - crep.eta());
      phiSum += (frac.fraction() * h.energy()) * std::abs(deltaPhi(rep.phi(), crep.phi()));
    }
    //protection for single line : assign ~ tower
    etaRMS2[i] = std::max(etaSum / cluster.energy(), 0.1);
    etaRMS2[i] *= etaRMS2[i];
    phiRMS2[i] = std::max(phiSum / cluster.energy(), 0.1);
    phiRMS2[i] *= phiRMS2[i];
  }
}

References funct::abs(), bsc_activity_cfg::clusters, SiPixelRawToDigiRegional_cfi::deltaPhi, reco::PFCluster::energy(), DivergingColor::frac, mps_fire::i, SiStripPI::max, reco::PFCluster::positionREP(), reco::PFCluster::recHitFractions(), and cuy::rep.

Referenced by buildClusters().

expandCluster()

void PFMultiDepthClusterizer::expandCluster ( reco::PFCluster &  cluster, unsigned int  point, std::vector< bool > &  mask, const reco::PFClusterCollection &  clusters, const std::vector< ClusterLink > &  links  )

private

Definition at line 272 of file PFMultiDepthClusterizer.cc.

                                                                                 {
  for (const auto& link : links) {
    if (link.from() == point) {
      //found link that starts from this guy if not masked absorb
      if (!mask[link.from()]) {
        absorbCluster(cluster, clusters[link.from()]);
        mask[link.from()] = true;
      }
 
      if (!mask[link.to()]) {
        absorbCluster(cluster, clusters[link.to()]);
        mask[link.to()] = true;
        expandCluster(cluster, link.to(), mask, clusters, links);
      }
    }
    if (link.to() == point) {
      //found link that starts from this guy if not masked absorb
      if (!mask[link.to()]) {
        absorbCluster(cluster, clusters[link.to()]);
        mask[link.to()] = true;
      }
 
      if (!mask[link.from()]) {
        absorbCluster(cluster, clusters[link.from()]);
        mask[link.from()] = true;
        expandCluster(cluster, link.from(), mask, clusters, links);
      }
    }
  }
}

References absorbCluster(), bsc_activity_cfg::clusters, link(), electronStore::links, and point.

Referenced by buildClusters().

link()

std::vector< PFMultiDepthClusterizer::ClusterLink > PFMultiDepthClusterizer::link ( const reco::PFClusterCollection &  clusters, const std::vector< double > &  etaRMS2, const std::vector< double > &  phiRMS2  )

private

Definition at line 166 of file PFMultiDepthClusterizer.cc.

                                                                                                                 {
  std::vector<ClusterLink> links;
  //loop on all pairs
  for (unsigned int i = 0; i < clusters.size(); ++i)
    for (unsigned int j = 0; j < clusters.size(); ++j) {
      if (i == j)
        continue;
 
      const reco::PFCluster& cluster1 = clusters[i];
      const reco::PFCluster& cluster2 = clusters[j];
 
      auto dz = (cluster2.depth() - cluster1.depth());
 
      //Do not link at the same layer and only link inside out!
      if (dz < 0.0f || std::abs(dz) < 0.2f)
        continue;
 
      auto const& crep1 = cluster1.positionREP();
      auto const& crep2 = cluster2.positionREP();
 
      auto deta = crep1.eta() - crep2.eta();
      deta = deta * deta / (etaRMS2[i] + etaRMS2[j]);
      auto dphi = deltaPhi(crep1.phi(), crep2.phi());
      dphi = dphi * dphi / (phiRMS2[i] + phiRMS2[j]);
 
      //      printf("Testing Link %d -> %d (%f %f %f %f ) \n",i,j,deta,dphi,cluster1.position().Eta()-cluster2.position().Eta(),deltaPhi(cluster1.position().Phi(),cluster2.position().Phi()));
 
      if ((deta < nSigmaEta_) & (dphi < nSigmaPhi_))
        links.push_back(ClusterLink(i, j, deta + dphi, std::abs(dz), cluster1.energy() + cluster2.energy()));
    }
 
  return links;
}

References funct::abs(), bsc_activity_cfg::clusters, SiPixelRawToDigiRegional_cfi::deltaPhi, reco::PFCluster::depth(), PVValHelper::dz, reco::PFCluster::energy(), f, mps_fire::i, dqmiolumiharvest::j, electronStore::links, nSigmaEta_, nSigmaPhi_, and reco::PFCluster::positionREP().

Referenced by buildClusters(), and expandCluster().

operator=()

B2DGPF& PFMultiDepthClusterizer::operator= ( const B2DGPF &  )

delete

prune()

std::vector< PFMultiDepthClusterizer::ClusterLink > PFMultiDepthClusterizer::prune ( std::vector< ClusterLink > &  links, std::vector< bool > &  linkedClusters  )

private

Definition at line 201 of file PFMultiDepthClusterizer.cc.

                                                                                                                  {
  std::vector<ClusterLink> goodLinks;
  std::vector<bool> mask(links.size(), false);
  if (links.empty())
    return goodLinks;
 
  for (unsigned int i = 0; i < links.size() - 1; ++i) {
    if (mask[i])
      continue;
    for (unsigned int j = i + 1; j < links.size(); ++j) {
      if (mask[j])
        continue;
 
      const ClusterLink& link1 = links[i];
      const ClusterLink& link2 = links[j];
 
      if (link1.to() == link2.to()) {  //found two links going to the same spot,kill one
        //first prefer nearby layers
        if (link1.dZ() < link2.dZ()) {
          mask[j] = true;
        } else if (link1.dZ() > link2.dZ()) {
          mask[i] = true;
        } else if (fabs(link1.dZ() - link2.dZ()) < 0.2) {  //if same layer-pick based on transverse compatibility
          if (link1.dR() < link2.dR()) {
            mask[j] = true;
          } else if (link1.dR() > link2.dR()) {
            mask[i] = true;
          } else {
            //same distance as well -> can happen !!!!! Pick the highest SUME
            if (link1.energy() < link2.energy())
              mask[i] = true;
            else
              mask[j] = true;
          }
        }
      }
    }
  }
 
  for (unsigned int i = 0; i < links.size(); ++i) {
    if (mask[i])
      continue;
    goodLinks.push_back(links[i]);
    linkedClusters[links[i].from()] = true;
    linkedClusters[links[i].to()] = true;
  }
 
  return goodLinks;
}

References PFMultiDepthClusterizer::ClusterLink::dR(), PFMultiDepthClusterizer::ClusterLink::dZ(), PFMultiDepthClusterizer::ClusterLink::energy(), mps_fire::i, dqmiolumiharvest::j, electronStore::links, and PFMultiDepthClusterizer::ClusterLink::to().

Referenced by buildClusters(), and dirstructure.Directory::prune().

update()

void PFMultiDepthClusterizer::update ( const edm::EventSetup &  es )

inlineoverridevirtual

Reimplemented from PFClusterBuilderBase.

Definition at line 25 of file PFMultiDepthClusterizer.cc.

{ _allCellsPosCalc->update(es); }

References _allCellsPosCalc.

Referenced by progressbar.ProgressBar::__next__(), MatrixUtil.Matrix::__setitem__(), MatrixUtil.Steps::__setitem__(), progressbar.ProgressBar::finish(), and MatrixUtil.Steps::overwrite().

Member Data Documentation

_allCellsPosCalc

std::unique_ptr<PFCPositionCalculatorBase> PFMultiDepthClusterizer::_allCellsPosCalc

private

Definition at line 32 of file PFMultiDepthClusterizer.cc.

Referenced by buildClusters(), PFMultiDepthClusterizer(), and update().

nSigmaEta_

double PFMultiDepthClusterizer::nSigmaEta_

private

Definition at line 33 of file PFMultiDepthClusterizer.cc.

Referenced by link(), and PFMultiDepthClusterizer().

nSigmaPhi_

double PFMultiDepthClusterizer::nSigmaPhi_

private

Definition at line 34 of file PFMultiDepthClusterizer.cc.

Referenced by link(), and PFMultiDepthClusterizer().