CbmBeam.h

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#ifndef CBMBEAM_H
#define CBMBEAM_H 1
 
 
#include "Rtypes.h"
#include "TVector3.h"
#include <string>
 
 
class CbmBeam {
 
public:
  CbmBeam(Double_t x      = 0.,
          Double_t y      = 0.,
          Double_t z      = 0.,
          Double_t thetaX = 0.,
          Double_t thetaY = 0.);
 
 
  virtual ~CbmBeam() {};
 
 
  TVector3 ExtrapolateToPlane(const TVector3& point,
                              const TVector3& normal) const;
 
 
  TVector3 GetDirection() const { return fDirection; }
 
 
  TVector3 GetPosition() const { return fPosition; }
 
 
  Double_t GetThetaX() const { return TMath::ATan(fDirection.X()); }
 
 
  Double_t GetThetaY() const { return TMath::ATan(fDirection.Y()); }
 
 
  std::string ToString() const;
 
 
private:
  TVector3 fPosition;   
  TVector3 fDirection;  
};
 
#endif /* CBMBEAM_H */