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geant4/examples/extended/parameterisations/Par02/include/Par02FastSimModelTracker.hh
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// $Id: $
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/// \file Par02FastSimModelTracker.hh
/// \brief Definition of the Par02FastSimModelTracker class
#ifndef PAR02_TRACKER_FAST_SIM_MODEL_H
#define PAR02_TRACKER_FAST_SIM_MODEL_H
#include "G4VFastSimulationModel.hh"
#include "Par02DetectorParametrisation.hh"
#include "G4Step.hh"
#include "G4Navigator.hh"
/// Shortcut to the ordinary tracking for tracking detectors.
///
/// The fast simulation model describes what should be done instead of a
/// normal tracking. Instead of the ordinary tracking, a particle momentum
/// at the entrance of the tracking detector is smeared
/// (by Par02Smearer::SmearMomentum()) and the particle is placed at the
/// tracking detector exit, at the place it would reach without the change
/// of its momentum. Based on G4
/// examples/extended/parametrisations/Par01/include/Par01EMShowerModel.hh .
/// @author Anna Zaborowska
class Par02FastSimModelTracker : public G4VFastSimulationModel {
public:
/// A constructor.
/// @param aModelName A name of the fast simulation model.
/// @param aEnvelope A region where the model can take over the ordinary tracking.
/// @param aParamType A parametrisation type.
Par02FastSimModelTracker( G4String aModelName, G4Region* aEnvelope,
Par02DetectorParametrisation::Parametrisation aParamType );
/// A constructor.
/// @param aModelName A name of the fast simulation model.
/// @param aEnvelope A region where the model can take over the ordinary tracking.
Par02FastSimModelTracker( G4String aModelName, G4Region* aEnvelope );
/// A constructor.
/// @param aModelName A name of the fast simulation model.
Par02FastSimModelTracker( G4String aModelName );
~Par02FastSimModelTracker();
/// Checks if this model should be applied to this particle type.
/// @param aParticle A particle definition (type).
virtual G4bool IsApplicable( const G4ParticleDefinition& aParticle );
/// Checks if the model should be applied taking into account the kinematics
/// of a track.
/// @param aFastTrack A track.
virtual G4bool ModelTrigger( const G4FastTrack& aFastTrack );
/// Calculates the final position (at the outer boundary of the tracking detector)
/// of a particle with the momentum at the entrance of the tracking detector.
/// Smears the particle momentum and saves it, together with the tracking detector
/// resolution and efficiency to the Par02PrimaryParticleInformation.
/// @param aFastTrack A track.
/// @param aFastStep A step.
virtual void DoIt( const G4FastTrack& aFastTrack, G4FastStep& aFastStep );
private:
/// A pointer to Par02DetectorParametrisation used to get the efficiency and
/// resolution of the tracking detector for a given particle and
/// parametrisation type.
Par02DetectorParametrisation* fCalculateParametrisation;
/// A parametrisation type.
Par02DetectorParametrisation::Parametrisation fParametrisation;
};
#endif