Basic2DGenericTopoClusterizer.h

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#ifndef __Basic2DGenericTopoClusterizer_H__
#define __Basic2DGenericTopoClusterizer_H__

#include "RecoParticleFlow/PFClusterProducer/interface/InitialClusteringStepBase.h"
#include "DataFormats/ParticleFlowReco/interface/PFRecHitFraction.h"

class Basic2DGenericTopoClusterizer : public InitialClusteringStepBase {
  typedef Basic2DGenericTopoClusterizer B2DGT;
 public:
  Basic2DGenericTopoClusterizer(const edm::ParameterSet& conf,
                edm::ConsumesCollector& sumes) :
    InitialClusteringStepBase(conf,sumes),
    _useCornerCells(conf.getParameter<bool>("useCornerCells")) { }
  ~Basic2DGenericTopoClusterizer() override = default;
  Basic2DGenericTopoClusterizer(const B2DGT&) = delete;
  B2DGT& operator=(const B2DGT&) = delete;

  void buildClusters(const edm::Handle<reco::PFRecHitCollection>&,
             const std::vector<bool>&,
             const std::vector<bool>&, 
             reco::PFClusterCollection&) override;
  
 private:  
  const bool _useCornerCells;
  void buildTopoCluster(const edm::Handle<reco::PFRecHitCollection>&,
            const std::vector<bool>&, // masked rechits
            unsigned int, //present rechit
            std::vector<bool>&, // hit usage state
            reco::PFCluster&); // the topocluster
  
};

DEFINE_EDM_PLUGIN(InitialClusteringStepFactory,
          Basic2DGenericTopoClusterizer,
          "Basic2DGenericTopoClusterizer");

#endif