BmnVertex.h

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// -------------------------------------------------------------------------
// -----                      BmnVertex header file                    -----
// -----                  Created 13.12.2018  by D. Baranov            -----
// -------------------------------------------------------------------------
 
 
#ifndef BMNVERTEX_H
#define BMNVERTEX_H 1
 
 
#include <string>
#include "TMatrixFSym.h"
#include "TNamed.h"
#include "TVector3.h"
 
 
class BmnVertex : public TNamed
{
 
 public:
 
  BmnVertex();
 
 
  BmnVertex(const char* name, const char* title);
 
 
  BmnVertex(const char* name, const char* title,
      Double_t x, Double_t y, Double_t z, Double_t chi2,
      Int_t ndf, Int_t nTracks, const TMatrixFSym& covMat);
 
 
  virtual ~BmnVertex();
 
 
  virtual void Print(Option_t* opt = "") const ;
 
 
  Double_t GetX()    const { return fX;       };  // x position [cm]
  Double_t GetY()    const { return fY;       };  // y position [cm]
  Double_t GetZ()    const { return fZ;       };  // z posiiton [cm]
  Double_t GetChi2() const { return fChi2;    };  // chi2
  Int_t GetNDF()     const { return fNDF;     };  // nof degrees of freedom
  Int_t GetNTracks() const { return fNTracks; };  // nof tracks used
  void Position(TVector3& pos) const { pos.SetXYZ(fX,fY,fZ); };
  void CovMatrix(TMatrixFSym& covMat) const;
  Double_t GetCovariance(Int_t i, Int_t j) const;
 
 
  void Reset();
 
 
  void SetVertex(Double_t x, Double_t y, Double_t z, Double_t chi2,
     Int_t ndf, Int_t nTracks, const TMatrixFSym& covMat);
 
 
  virtual std::string ToString() const;
 
 
 
 private:
 
  Double32_t fX, fY, fZ;
 
  Double32_t fChi2;
 
  Int_t fNDF;
 
  Int_t fNTracks;
 
  Double32_t fCovMatrix[6];
 
 
  ClassDef(BmnVertex,1);
 
};
 
 
#endif