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PionMatrixManager.h

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#ifndef ATLFAST_PIONMATRIXMANAGER_H
#define ATLFAST_PIONMATRIXMANAGER_H

#include "GaudiKernel/MsgStream.h"
#include "AtlfastAlgs/PionBinData.h"
#include "AtlfastAlgs/TrackTrajectory.h"
#include "CLHEP/Random/JamesRandom.h"
#include "AtlfastAlgs/IMatrixManager.h"
#include "AtlfastAlgs/BinID.h"
#include "AtlfastAlgs/CorrelatedData.h"
#include "AtlfastUtils/HeaderPrinter.h"

#include <vector>
#include <string>
#include <map>
#include <utility>

//===========================================================
//
//  Matrix Manager
// 
//  Used by tracksmearer to provide smear matrix data 
//  corresponding to a given track trajectory
//
//===========================================================
// RMS 26/4/2001
// Modified to use parametrisation provided by
// Armin Nairz
//===========================================================


namespace Atlfast {
  using std::string;
  using std::ifstream;
  using std::map;

  class PionMatrixManager: public IMatrixManager
{

 public:
  PionMatrixManager(int, MsgStream);
  virtual ~PionMatrixManager();
  vector<double> getVariables(const TrackTrajectory& track,
                              HepMatrix& usedSigma) const;


 private:
  MsgStream* m_log;
  void initialise();
  void fillVector(ifstream&, vector< vector<double> >&, int);
  void makeHeader(); 
  BinID getBinID(const TrackTrajectory& track) const;
  string m_file;
  map<BinID, PionBinData*> m_binData;
  CorrelatedData* m_correlatedData;
  HepRandomEngine* m_randomEngine;

  vector<double> m_etaBoundaries;
  vector<double> m_rTBoundaries;
  int m_nRTBins;
  int m_nEtaBins;

};

}

#endif

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