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LeptonMatrixManager.h

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#ifndef ATLFAST_LEPTONMATRIXMANAGER_H
#define ATLFAST_LEPTONMATRIXMANAGER_H

#include "GaudiKernel/MsgStream.h"
#include "AtlfastEvent/TrackTrajectory.h"
#include "CLHEP/Random/JamesRandom.h"

#include "AtlfastAlgs/IMatrixManager.h"
#include "AtlfastAlgs/BinID.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::vector;
  using std::map;

  class CorrelatedData;
  class IBinData;

  class LeptonMatrixManager: public IMatrixManager{
    
  public:
    LeptonMatrixManager(string config, int randSeed, MsgStream& log);
    virtual ~LeptonMatrixManager();
    virtual vector<double> getVariables(const TrackTrajectory& track, 
                                        HepMatrix&) const;

  private:
    void initialise();
    IBinData* getBinData(const TrackTrajectory& track) const;
    void scale(HepMatrix&) const;
    void scale(vector<double>&) const;
    

    string m_file;       
    string m_config;    
    
    CorrelatedData* m_correlatedData;
    std::map<BinID, IBinData*> m_binData;

    double m_pTMin;
    double m_etaMin;
    double m_etaMax;
    int m_nBins;
    MsgStream& m_log;
    
  };
  
}

#endif

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