CbmVertex.h

Go to the documentation of this file. Or view the newest version in sPHENIX GitHub for file CbmVertex.h

// -------------------------------------------------------------------------
// -----                      CbmVertex header file                    -----
// -----                  Created 28/11/05  by V. Friese               -----
// -------------------------------------------------------------------------


#ifndef CBMVERTEX_H
#define CBMVERTEX_H 1


#include "TMatrixFSym.h"
#include "TNamed.h"
#include "TVector3.h"


class CbmVertex : public TNamed
{

 public:

  CbmVertex();


  CbmVertex(const char* name, const char* title);


  CbmVertex(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 ~CbmVertex();


  void Print();


  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 SetVertex(Double_t x, Double_t y, Double_t z, Double_t chi2,
     Int_t ndf, Int_t nTracks, const TMatrixFSym& covMat);


  void Reset();
        

 private:

  Double32_t fX, fY, fZ;

  Double32_t fChi2;

  Int_t fNDF;

  Int_t fNTracks;

  Double32_t fCovMatrix[6];


  ClassDef(CbmVertex,1);

};


#endif