Trajectory.h

#ifndef Trajectory_H
#define Trajectory_H 1

#include <LCGeometryTypes.h>
#include <LCPlane3D.h>
#include <LCCylinder.h>

class Trajectory {
  
public:
  
  virtual LCVector3D getPosition(double s, LCErrorMatrix* errors=0) const = 0;
  
  virtual LCVector3D getDirection(double s,  LCErrorMatrix* errors=0) const = 0;
  
  virtual LCErrorMatrix getCovarianceMatrix( double s) const = 0;
  
  
  virtual double getPathAt(const LCVector3D position ) const = 0;
  
  
  /*----------------------------------------------------------------------*/
  
  virtual double getIntersectionWithPlane( LCPlane3D p, bool& pointExists) const = 0 ;
  
  
  virtual  double getIntersectionWithCylinder(const LCCylinder & cylinder, 
                                              bool & pointExists) const = 0;

  virtual ~Trajectory(){ ; } ;
}; // class 



class PhysicalTrajectory : public Trajectory{
  
  virtual LCLorentzVector get4Momentum( double s ) const = 0;

  virtual ~PhysicalTrajectory(){ ; } ;
};


#endif /* ifndef Trajectory_H */