class TTree;
class AliKalmanTrack;
class AliESDEvent;
+class AliESDtrack;
class AliExternalTrackParam;
class AliTrackPoint;
virtual void UnloadClusters()=0;
virtual AliCluster *GetCluster(Int_t index) const=0;
virtual Bool_t GetTrackPoint(Int_t /* index */ , AliTrackPoint& /* p */) const { return kFALSE;}
+ virtual Bool_t GetTrackPointTrackingError(Int_t /* index */,
+ AliTrackPoint& /* p */, const AliESDtrack* /* t */) { return kFALSE;}
virtual void UseClusters(const AliKalmanTrack *t, Int_t from=0) const;
virtual void CookLabel(AliKalmanTrack *t,Float_t wrong) const;
Double_t GetX() const {return fX;}