RadialTracker.h

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#ifndef INCLUDE_EICSMEAR_SMEAR_RADIALTRACKER_H_
#define INCLUDE_EICSMEAR_SMEAR_RADIALTRACKER_H_

#include <Rtypes.h>  // For ClassDef

#include "eicsmear/smear/Smear.h"  // KinType
#include "eicsmear/smear/Tracker.h"

namespace erhic {

class VirtualParticle;

}  // namespace erhic

namespace Smear {

class ParticleMCS;

class RadialTracker : public Tracker {
 public:
  RadialTracker();

  RadialTracker(double innerRadius, double outerRadius,
                double zMin, double zMax,
                double magneticField, double numberOfRadiationLengths,
                double sigmaRPhi, double numberOfPoints);

  virtual ~RadialTracker();

  virtual RadialTracker* Clone(const char* = "") const;

  virtual void Print(Option_t* = "") const;

  double L(const erhic::VirtualParticle&) const;

  double LPrime(const erhic::VirtualParticle&) const;

  virtual int NPoints(const erhic::VirtualParticle&) const;

  virtual bool Accepts(const erhic::VirtualParticle&) const;

  virtual double GetThetaMin() const;

  virtual double GetThetaMax() const;

 protected:
  TVector3 ComputeIntersectionWithRadius(const erhic::VirtualParticle&,
                                         double radius) const;

  TVector3 ComputeIntersectionWithPlane(const erhic::VirtualParticle&,
                                        double z) const;

  TVector3 ComputePath(const erhic::VirtualParticle&) const;

  double mNFitPoints;  
  double mInnerRadius;  
  double mOuterRadius;  
  double mZMin;  
  double mZMax;  

  ClassDef(Smear::RadialTracker, 1)
};

inline RadialTracker* RadialTracker::Clone(const char*) const {
  return new RadialTracker(*this);
}

}  // namespace Smear

#endif  // INCLUDE_EICSMEAR_SMEAR_RADIALTRACKER_H_