Gabriele Cosmo
130 lines
4.5 KiB
C++
130 lines
4.5 KiB
C++
//
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// ********************************************************************
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// * License and Disclaimer *
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// * *
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// * The Geant4 software is copyright of the Copyright Holders of *
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// * the Geant4 Collaboration. It is provided under the terms and *
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// * conditions of the Geant4 Software License, included in the file *
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// * LICENSE and available at http://cern.ch/geant4/license . These *
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// * include a list of copyright holders. *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. Please see the license in the file LICENSE and URL above *
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// * for the full disclaimer and the limitation of liability. *
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// * *
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// * This code implementation is the result of the scientific and *
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// * technical work of the GEANT4 collaboration. *
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// * By using, copying, modifying or distributing the software (or *
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// * any work based on the software) you agree to acknowledge its *
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// * use in resulting scientific publications, and indicate your *
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// * acceptance of all terms of the Geant4 Software license. *
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// ********************************************************************
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//
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//
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//
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//
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// Class Description:
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//
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// Manages the propagation of tracks. Creates a G4Track, asks to
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// propagate it and takes also care to propagate the errors.
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// Stops the track when GEANT4 stops it or a G4ErrorTarget is reached.
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// History:
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// - Created: P. Arce
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// --------------------------------------------------------------------
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#ifndef G4ErrorPropagator_hh
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#define G4ErrorPropagator_hh
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#include "globals.hh"
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#include "G4ErrorPropagatorData.hh"
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#include "G4SteppingManager.hh"
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class G4eErrorMatrix;
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class G4Track;
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class G4ErrorTrajState;
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class G4ErrorFreeTrajState;
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class G4ErrorTarget;
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#include "globals.hh"
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class G4ErrorPropagator
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{
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public: // with description
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G4ErrorPropagator();
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~G4ErrorPropagator() {}
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G4Track* InitG4Track(G4ErrorTrajState& initialTS);
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// Creates a G4Track from a G4ErrorTrajState
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G4int Propagate(G4ErrorTrajState* currentTS, const G4ErrorTarget* target,
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G4ErrorMode mode = G4ErrorMode_PropForwards);
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// Steers the GEANT4 propagation of a track:
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// the particle will be extrapolated until the Target is reached.
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// The final G4Track parameters will be passed to theFinalTrajState
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G4int PropagateOneStep(G4ErrorTrajState* currentTS);
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// Propagates a G4Track by one step, and then returns control to the user
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G4int MakeOneStep(G4ErrorFreeTrajState* currentTS_FREE);
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// Advance one step
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G4ErrorFreeTrajState* InitFreeTrajState(G4ErrorTrajState* currentTS);
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// Creates theCurrentTS_FREE (transforms the user G4ErrorSurfaceTrajState
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// or copies the G4ErrorFreeTrajState)
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void GetFinalTrajState(G4ErrorTrajState* currentTS,
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G4ErrorFreeTrajState* currentTS_FREE,
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const G4ErrorTarget* target);
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// After steps are done, convert the G4ErrorFreeTrajState used for error
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// propagation to the class of origin (G4ErrorFreeTrajState or
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// G4eTrajStatOnSurface)
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void InvokePreUserTrackingAction(G4Track* fpTrack);
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// Invoke the G4UserTrackingAction::PreUserTrackingAction
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void InvokePostUserTrackingAction(G4Track* fpTrack);
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// Invoke the G4UserTrackingAction::PostUserTrackingAction
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G4bool CheckIfLastStep(G4Track* aTrack);
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// Check if it is the last step for error propagation:
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// - G4ErrorState is G4ErrorState_StoppedAtTarget
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// - Track is OutOfWorld
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// - G4TrackStatus is fStopAndKill
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// Get and Set methods
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const G4ErrorTrajState* GetInitialTrajState() const
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{
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return theInitialTrajState;
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}
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G4double GetStepLength() const { return theStepLength; }
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void SetStepLength(const G4double sl) { theStepLength = sl; }
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void SetStepN(const G4int sn) { theStepN = sn; }
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private:
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G4int MakeSteps(G4ErrorFreeTrajState* currentTS_FREE);
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// Advance steps until target is reached
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private:
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G4double theStepLength;
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G4ErrorTrajState* theInitialTrajState;
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G4int theStepN;
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G4Track* theG4Track;
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G4SteppingManager* fpSteppingManager;
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G4int verbose;
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G4bool thePropIsInitialized;
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};
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#endif
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