StPicoPhysicalHelix.h

#ifndef StPicoPhysicalHelix_h
#define StPicoPhysicalHelix_h

// ROOT headers
#include "TVector3.h"

// PicoDst headers
#include "StPicoHelix.h"

//_________________
class StPicoPhysicalHelix : public StPicoHelix {
  
 public:

  StPicoPhysicalHelix();
  StPicoPhysicalHelix(const TVector3&,
                      const TVector3&,
                      Double_t, Double_t);
  StPicoPhysicalHelix(Double_t, Double_t, Double_t,
                      const TVector3&, Int_t h=-1);
  ~StPicoPhysicalHelix();

  TVector3 momentum(Double_t) const;
  TVector3 momentumAt(Double_t, Double_t) const;
  Int_t charge(Double_t)   const;
  Double_t curvatureSignedDistance(Double_t x, Double_t y) ;
  Double_t geometricSignedDistance(Double_t x, Double_t y) ;
  Double_t curvatureSignedDistance(const TVector3&) ;
  Double_t geometricSignedDistance(const TVector3&) ;
    
  ClassDef(StPicoPhysicalHelix,1)
};

#endif