void GetDZ(Double_t x,Double_t y,Double_t z,Double_t b,Float_t dz[2]) const;
Double_t GetD(Double_t xv, Double_t yv, Double_t b) const;
Double_t GetLinearD(Double_t xv, Double_t yv) const;
Bool_t CorrectForMeanMaterial(Double_t xOverX0, Double_t xTimesRho,
Double_t mass, Bool_t anglecorr=kFALSE,
void GetDZ(Double_t x,Double_t y,Double_t z,Double_t b,Float_t dz[2]) const;
Double_t GetD(Double_t xv, Double_t yv, Double_t b) const;
Double_t GetLinearD(Double_t xv, Double_t yv) const;
Bool_t CorrectForMeanMaterial(Double_t xOverX0, Double_t xTimesRho,
Double_t mass, Bool_t anglecorr=kFALSE,