SiStripCluster.h

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#ifndef DATAFORMATS_SISTRIPCLUSTER_H
#define DATAFORMATS_SISTRIPCLUSTER_H

#include "DataFormats/SiStripDigi/interface/SiStripDigi.h"
#include <vector>
#include "FWCore/MessageLogger/interface/MessageLogger.h"

class SiStripCluster  {
public:

  typedef std::vector<SiStripDigi>::const_iterator   SiStripDigiIter;
  typedef std::pair<SiStripDigiIter,SiStripDigiIter>   SiStripDigiRange;

  SiStripCluster() : error_x( -99999.9 ) {}

  explicit SiStripCluster(const SiStripDigiRange& range);

  template<typename Iter>
  SiStripCluster(const uint16_t& firstStrip, 
         Iter begin, Iter end ):
     amplitudes_(begin,end), firstStrip_(firstStrip), 
  // ggiurgiu@fnal.gov, 01/05/12
  // Initialize the split cluster errors to un-physical values.
  // The CPE will check these errors and if they are not un-physical,
  // it will recognize the clusters as split and assign these (increased)
  // errors to the corresponding rechit.
  error_x(-99999.9){}

  uint16_t firstStrip() const {return firstStrip_;}

  const std::vector<uint8_t>&  amplitudes() const {return amplitudes_;}

  float barycenter() const;

  float getSplitClusterError () const    {  return error_x;  }
  void  setSplitClusterError ( float errx ) { error_x = errx; }


private:

  std::vector<uint8_t>   amplitudes_;

  uint16_t                firstStrip_;

  // ggiurgiu@fnal.gov, 01/05/12
  // Add cluster errors to be used by rechits from split clusters. 
  // A rechit from a split cluster has larger errors than rechits from normal clusters. 
  // However, when presented with a cluster, the CPE does not know if the cluster comes 
  // from a splitting procedure or not. That's why we have to instruct the CPE to use 
  // appropriate errors for split clusters.
  // To avoid increase of data size on disk,these new data members are set as transient in: 
  // DataFormats/SiStripCluster/src/classes_def.xml
  float error_x;
  
};

// Comparison operators
inline bool operator<( const SiStripCluster& one, const SiStripCluster& other) {
    return one.firstStrip() < other.firstStrip();
} 

inline bool operator<(const SiStripCluster& cluster, const uint16_t& firstStrip) {
  return cluster.firstStrip() < firstStrip;
} 

inline bool operator<(const uint16_t& firstStrip,const SiStripCluster& cluster) {
  return firstStrip < cluster.firstStrip();
} 
#endif // DATAFORMATS_SISTRIPCLUSTER_H