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IMatrixManager.h

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#ifndef ATLFAST_IMATRIXMANAGER_H
#define ATLFAST_IMATRIXMANAGER_H

#include "AtlfastAlgs/TrackTrajectory.h"
#include "AtlfastAlgs/BinID.h"
#include "CLHEP/Random/JamesRandom.h"
#include "CLHEP/Matrix/Matrix.h"
#include <vector>

//===========================================================
//
//  IMatrix Manager
// 
//  Interface for Matrix Managers
//  Used by tracksmearer to provide smear matrix data 
//  corresponding to a given track trajectory
//
//===========================================================



namespace Atlfast {
  using std::vector;
  class IMatrixManager {
  public:
    //  virtual HepMatrix getMatrix(const TrackTrajectory& track) const = 0;
    virtual vector<double> getVariables(const TrackTrajectory& track,
                                      HepMatrix& usedSigma) const = 0;
  private:
    virtual void initialise() = 0;
    virtual BinID getBinID(const TrackTrajectory& track) const = 0;
  };
  
}

#endif

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