virtual ULong_t GetStatus() const = 0;
virtual Bool_t GetXYZ(Double_t *p) const = 0;
virtual Double_t GetBz() const;
+ virtual void GetBxByBz(Double_t b[3]) const;
virtual Bool_t GetCovarianceXYZPxPyPz(Double_t cv[21]) const = 0;
ClassDef(AliVTrack,0) // base class for tracks