X-Git-Url: http://git.uio.no/git/?a=blobdiff_plain;f=STEER%2FSTEERBase%2FAliExternalTrackParam.h;h=44721d6253123a51a3d22c01f59113ff8c4afe4c;hb=607aa748e07178e332c3c1bc18714062e228b805;hp=88c9d9ee86d08aefb277917b32a9db029ab0fa7a;hpb=e546b023ff9f98d42ec24154cbe51f77a5b0feca;p=u%2Fmrichter%2FAliRoot.git

diff --git a/STEER/STEERBase/AliExternalTrackParam.h b/STEER/STEERBase/AliExternalTrackParam.h
index 88c9d9ee86d..44721d62531 100644
--- a/STEER/STEERBase/AliExternalTrackParam.h
+++ b/STEER/STEERBase/AliExternalTrackParam.h
@@ -186,7 +186,9 @@ class AliExternalTrackParam: public AliVTrack {
   Double_t *GetResiduals(Double_t *p,Double_t *cov,Bool_t updated=kTRUE) const;
   Bool_t Update(Double_t p[2],Double_t cov[3]);
   Bool_t Rotate(Double_t alpha);
+  Bool_t Invert();
   Bool_t PropagateTo(Double_t x, Double_t b);
+  Bool_t PropagateParamOnlyTo(Double_t xk, Double_t b);
   Bool_t Propagate(Double_t alpha, Double_t x, Double_t b);
   Bool_t PropagateBxByBz(Double_t alpha, Double_t x, Double_t b[3]);
   void   Propagate(Double_t len,Double_t x[3],Double_t p[3],Double_t bz) const;
@@ -215,6 +217,7 @@ class AliExternalTrackParam: public AliVTrack {
   Bool_t GetZAt(Double_t x,  Double_t b,  Double_t &z) const;
   void Print(Option_t* option = "") const;
   Double_t GetSnpAt(Double_t x,Double_t b) const;
+  Bool_t GetXatLabR(Double_t r,Double_t &x, Double_t bz, Int_t dir=0) const;
 
   //Deprecated
   Bool_t CorrectForMaterial(Double_t d, Double_t x0, Double_t mass,
@@ -245,12 +248,12 @@ class AliExternalTrackParam: public AliVTrack {
  private:
   Double_t &Par(Int_t i) {return fP[i];}
   Double_t &Cov(Int_t i) {return fC[i];}
- private:
+ protected:
   Double32_t           fX;     // X coordinate for the point of parametrisation
   Double32_t           fAlpha; // Local <-->global coor.system rotation angle
   Double32_t           fP[5];  // The track parameters
   Double32_t           fC[15]; // The track parameter covariance matrix
-  //
+
   static Double32_t    fgMostProbablePt; // "Most probable" pt
                                          // (to be used if Bz=0)
   static Bool_t        fgUseLogTermMS;   // use log term in Mult.Stattering evaluation