[815] | 1 | // |
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| 2 | // ******************************************************************** |
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| 3 | // * License and Disclaimer * |
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| 4 | // * * |
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| 5 | // * The Geant4 software is copyright of the Copyright Holders of * |
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| 6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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| 7 | // * conditions of the Geant4 Software License, included in the file * |
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| 8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
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| 9 | // * include a list of copyright holders. * |
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| 10 | // * * |
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| 11 | // * Neither the authors of this software system, nor their employing * |
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| 12 | // * institutes,nor the agencies providing financial support for this * |
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| 13 | // * work make any representation or warranty, express or implied, * |
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| 14 | // * regarding this software system or assume any liability for its * |
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| 15 | // * use. Please see the license in the file LICENSE and URL above * |
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| 16 | // * for the full disclaimer and the limitation of liability. * |
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| 17 | // * * |
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| 18 | // * This code implementation is the result of the scientific and * |
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| 19 | // * technical work of the GEANT4 collaboration. * |
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| 20 | // * By using, copying, modifying or distributing the software (or * |
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| 21 | // * any work based on the software) you agree to acknowledge its * |
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| 22 | // * use in resulting scientific publications, and indicate your * |
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| 23 | // * acceptance of all terms of the Geant4 Software license. * |
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| 24 | // ******************************************************************** |
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| 25 | // |
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| 26 | // |
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| 27 | // $Id: G4ErrorPropagator.hh,v 1.3 2007/05/29 14:41:35 gcosmo Exp $ |
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[850] | 28 | // GEANT4 tag $Name: HEAD $ |
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[815] | 29 | // |
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| 30 | // |
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| 31 | // Class Description: |
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| 32 | // |
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| 33 | // Manages the propagation of tracks. Creates a G4Track, asks to |
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| 34 | // propagate it and takes also care to propagate the errors. |
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| 35 | // Stops the track when GEANT4 stops it or a G4ErrorTarget is reached. |
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| 36 | |
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| 37 | // History: |
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| 38 | // - Created: P. Arce |
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| 39 | // -------------------------------------------------------------------- |
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| 40 | |
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| 41 | #ifndef G4ErrorPropagator_hh |
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| 42 | #define G4ErrorPropagator_hh |
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| 43 | |
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| 44 | #include "globals.hh" |
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| 45 | #include "G4ErrorPropagatorData.hh" |
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| 46 | #include "G4SteppingManager.hh" |
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| 47 | |
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| 48 | class G4eErrorMatrix; |
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| 49 | class G4Track; |
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| 50 | class G4ErrorTrajState; |
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| 51 | class G4ErrorFreeTrajState; |
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| 52 | class G4ErrorTarget; |
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| 53 | #include "globals.hh" |
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| 54 | |
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| 55 | class G4ErrorPropagator |
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| 56 | { |
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| 57 | public: // with description |
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| 58 | |
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| 59 | G4ErrorPropagator(); |
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| 60 | ~G4ErrorPropagator(){} |
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| 61 | |
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| 62 | G4Track* InitG4Track( G4ErrorTrajState& initialTS ); |
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| 63 | // Creates a G4Track from a G4ErrorTrajState |
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| 64 | |
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| 65 | G4int Propagate( G4ErrorTrajState* currentTS, |
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| 66 | const G4ErrorTarget* target, |
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| 67 | G4ErrorMode mode = G4ErrorMode_PropForwards); |
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| 68 | // Steers the GEANT4 propagation of a track: |
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| 69 | // the particle will be extrapolated until the Target is reached. |
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| 70 | // The final G4Track parameters will be passed to theFinalTrajState |
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| 71 | |
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| 72 | G4int PropagateOneStep( G4ErrorTrajState* currentTS ); |
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| 73 | // Propagates a G4Track by one step, and then returns control to the user |
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| 74 | |
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| 75 | G4int MakeOneStep( G4ErrorFreeTrajState* currentTS_FREE ); |
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| 76 | // Advance one step |
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| 77 | |
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| 78 | G4ErrorFreeTrajState* InitFreeTrajState( G4ErrorTrajState* currentTS ); |
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| 79 | // Creates theCurrentTS_FREE (transforms the user G4ErrorSurfaceTrajState |
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| 80 | // or copies the G4ErrorFreeTrajState) |
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| 81 | |
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| 82 | void GetFinalTrajState( G4ErrorTrajState* currentTS, G4ErrorFreeTrajState* currentTS_FREE, const G4ErrorTarget* target ); |
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| 83 | // After steps are done, convert the G4ErrorFreeTrajState used for error |
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| 84 | // propagation to the class of origin (G4ErrorFreeTrajState or |
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| 85 | // G4eTrajStatOnSurface) |
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| 86 | |
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| 87 | void InvokePreUserTrackingAction( G4Track* fpTrack ); |
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| 88 | // Invoke the G4UserTrackingAction::PreUserTrackingAction |
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| 89 | void InvokePostUserTrackingAction( G4Track* fpTrack ); |
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| 90 | // Invoke the G4UserTrackingAction::PostUserTrackingAction |
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| 91 | |
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| 92 | G4bool CheckIfLastStep( G4Track* aTrack ); |
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| 93 | // Check if it is the last step for error propagation: |
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| 94 | // - G4ErrorState is G4ErrorState_StoppedAtTarget |
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| 95 | // - Track is OutOfWorld |
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| 96 | // - G4TrackStatus is fStopAndKill |
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| 97 | |
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| 98 | // Get and Set methods |
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| 99 | |
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| 100 | const G4ErrorTrajState* GetInitialTrajState() const |
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| 101 | { return theInitialTrajState; } |
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| 102 | |
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| 103 | G4double GetStepLength() const |
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| 104 | { return theStepLength; } |
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| 105 | |
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| 106 | void SetStepLength( const G4double sl ) |
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| 107 | { theStepLength = sl; } |
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| 108 | |
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| 109 | void SetStepN( const G4int sn ) |
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| 110 | { theStepN = sn; } |
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| 111 | |
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| 112 | private: |
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| 113 | |
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| 114 | G4int MakeSteps( G4ErrorFreeTrajState* currentTS_FREE ); |
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| 115 | // Advance steps until target is reached |
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| 116 | |
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| 117 | private: |
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| 118 | |
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| 119 | G4double theStepLength; |
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| 120 | |
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| 121 | G4ErrorTrajState* theInitialTrajState; |
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| 122 | G4ErrorTrajState* theFinalTrajState; |
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| 123 | |
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| 124 | G4int theStepN; |
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| 125 | |
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| 126 | G4Track* theG4Track; |
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| 127 | |
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| 128 | G4SteppingManager* fpSteppingManager; |
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| 129 | |
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| 130 | G4int verbose; |
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| 131 | |
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| 132 | G4bool thePropIsInitialized; |
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| 133 | |
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| 134 | }; |
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| 135 | |
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| 136 | #endif |
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