AliFMDESDRevertexer.h

Go to the documentation of this file.

#ifndef ALIFMDESDREVERTEXER_H
#define ALIFMDESDREVERTEXER_H
#include <TObject.h>
class AliESDFMD;

//
// Class to recaculate quantities in an AliESDFMD object based on new
// a value for the z-coordinate of the primary interaction point. 
//
// This allows us, in case we get a better determination of the
// z-coordinate of the primary interaction, to recalibrate the signals
// in the FMD ESD object, without having to redo the reconstruction. 
//
class AliFMDESDRevertexer : public TObject
{
public:
  AliFMDESDRevertexer();
  virtual ~AliFMDESDRevertexer() {}
  Bool_t Revertex(AliESDFMD* fmdEsd, Double_t vz) const;
  
  Bool_t PhysicalCoordinates(UShort_t  det, 
           Char_t    rng, 
           UShort_t  sec, 
           UShort_t  str,
           Double_t  vz,
           Double_t& eta, 
           Double_t& phi,
           Double_t& r,
           Double_t& theta) const;

  Double_t Eta2Theta(Double_t eta) const;
protected:
  ClassDef(AliFMDESDRevertexer,0) // Revertex and FMD ESD Object.
};

#endif
//
// Local Variables:
//  mode: C++
// End:
//