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 fillDescriptions(edm::ParameterSetDescription& desc);

 private:

  std::vector<FTLCluster::FTLHitPos>  theSeeds;          // cached seed pixels
  std::vector<FTLCluster>            theClusters;       // resulting clusters  
  
  float theHitThreshold;    // Hit threshold 
  float theSeedThreshold;     // MTD cluster seed 
  float theClusterThreshold;  // Cluster threshold 
  float theTimeThreshold; // Time compatibility 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);   
  void clear_buffer( RecHitIterator itr);
  FTLCluster make_cluster( const FTLCluster::FTLHitPos& hit );
};

#endif