MTDThresholdClusterizer.h

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#ifndef RecoLocalTracker_FTLClusterizer_MTDThresholdClusterizer_H
#define RecoLocalTracker_FTLClusterizer_MTDThresholdClusterizer_H

//-----------------------------------------------------------------------
//-----------------------------------------------------------------------

// Base class, defines FTLRecHit and FLTCluster.  The latter includes
// FTLHit, FTLHitPos and Shift as inner classes.
//
#include "RecoLocalFastTime/FTLClusterizer/interface/MTDClusterizerBase.h"

// The private pixel buffer
#include "MTDArrayBuffer.h"

// Parameter Set:
#include "FWCore/ParameterSet/interface/ParameterSet.h"

#include "FWCore/ParameterSet/interface/ConfigurationDescriptions.h"
#include "FWCore/ParameterSet/interface/ParameterSetDescription.h"

#include <vector>

#include "Geometry/MTDGeometryBuilder/interface/MTDGeometry.h"

class MTDThresholdClusterizer : public MTDClusterizerBase {
public:
  MTDThresholdClusterizer(edm::ParameterSet const& conf);
  ~MTDThresholdClusterizer() override;

  // Full I/O in DetSet
  void clusterize(const FTLRecHitCollection& input,
                  const MTDGeometry* geom,
                  const MTDTopology* topo,
                  FTLClusterCollection& output) override;

  static void fillPSetDescription(edm::ParameterSetDescription& desc);

private:
  std::vector<FTLCluster::FTLHitPos> theSeeds;  // cached seed pixels
  std::vector<FTLCluster> theClusters;          // resulting clusters

  const float theHitThreshold;       // Hit threshold
  const float theSeedThreshold;      // MTD cluster seed
  const float theClusterThreshold;   // Cluster threshold
  const float theTimeThreshold;      // Time compatibility between new hit and seed
  const float thePositionThreshold;  // Position threshold between new hit and seed

  int theNumOfRows;
  int theNumOfCols;

  DetId theCurrentId;

  MTDArrayBuffer theBuffer;  // internal nrow * ncol matrix
  bool bufferAlreadySet;     // status of the buffer array

  bool setup(const MTDGeometry* geometry, const MTDTopology* topo, const DetId& id);
  void copy_to_buffer(RecHitIterator itr, const MTDGeometry* geom, const MTDTopology* topo);
  void clear_buffer(RecHitIterator itr);
  FTLCluster make_cluster(const FTLCluster::FTLHitPos& hit);
};

#endif