CbmVertex.h

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// -------------------------------------------------------------------------
// -----                      CbmVertex header file                    -----
// -----                  Created 28/11/05  by V. Friese               -----
// -------------------------------------------------------------------------
 
 
#ifndef CBMVERTEX_H
#define CBMVERTEX_H 1
 
#include <Rtypes.h>          // for ClassDef
#include <RtypesCore.h>      // for Double_t, Int_t, Double32_t, Option_t
#include <TMatrixFSymfwd.h>  // for TMatrixFSym
#include <TNamed.h>          // for TNamed
#include <TVector3.h>        // for TVector3
 
#include <string>  // for string
 
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();
 
 
  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(CbmVertex, 1);
};
 
 
#endif