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0001 // 0002 // ******************************************************************** 0003 // * License and Disclaimer * 0004 // * * 0005 // * The Geant4 software is copyright of the Copyright Holders of * 0006 // * the Geant4 Collaboration. It is provided under the terms and * 0007 // * conditions of the Geant4 Software License, included in the file * 0008 // * LICENSE and available at http://cern.ch/geant4/license . These * 0009 // * include a list of copyright holders. * 0010 // * * 0011 // * Neither the authors of this software system, nor their employing * 0012 // * institutes,nor the agencies providing financial support for this * 0013 // * work make any representation or warranty, express or implied, * 0014 // * regarding this software system or assume any liability for its * 0015 // * use. Please see the license in the file LICENSE and URL above * 0016 // * for the full disclaimer and the limitation of liability. * 0017 // * * 0018 // * This code implementation is the result of the scientific and * 0019 // * technical work of the GEANT4 collaboration. * 0020 // * By using, copying, modifying or distributing the software (or * 0021 // * any work based on the software) you agree to acknowledge its * 0022 // * use in resulting scientific publications, and indicate your * 0023 // * acceptance of all terms of the Geant4 Software license. * 0024 // ******************************************************************** 0025 // 0026 // 0027 // 0028 // 0029 // ------------------------------------------------------------ 0030 // GEANT 4 include file implementation 0031 // ------------------------------------------------------------ 0032 // 0033 // Class description: 0034 // 0035 // G4CoupledTransportation is an optional process to transport 0036 // a particle, in case of coupled navigation in parallel geometries 0037 // i.e. the geometrical propagation will be done 0038 // encountering the geometrical volumes of the detectors and 0039 // those of parallel geometries (eg for biasing, scoring, fast simulation) 0040 // It is tasked with updating the "safety" to reflect the geometrical 0041 // distance to the nearest volume, and the time of flight of the particle. 0042 0043 // ======================================================================= 0044 // Created: 17 May 2006, J. Apostolakis 0045 // ======================================================================= 0046 #ifndef G4CoupledTransportation_hh 0047 #define G4CoupledTransportation_hh 1 0048 0049 #include "G4Transportation.hh" 0050 0051 #include "G4Track.hh" 0052 #include "G4Step.hh" 0053 0054 class G4PathFinder; 0055 0056 class G4CoupledTransportation : public G4Transportation 0057 { 0058 0059 public: // with description 0060 0061 G4CoupledTransportation( G4int verbosityLevel= 0); 0062 ~G4CoupledTransportation(); 0063 0064 G4double AlongStepGetPhysicalInteractionLength( 0065 const G4Track& track, 0066 G4double previousStepSize, 0067 G4double currentMinimumStep, 0068 G4double& currentSafety, 0069 G4GPILSelection* selection 0070 ); 0071 0072 // AlongStepDoIt is implemented by G4Transportation. 0073 0074 G4VParticleChange* PostStepDoIt( 0075 const G4Track& track, 0076 const G4Step& stepData 0077 ); 0078 // Responsible for the relocation 0079 0080 // PostStepGetPhysicalInteractionLength is implemented by 0081 // G4Transportation to force PostStepDoIt, but not limiting the step. 0082 0083 static void SetSignifyStepsInAnyVolume( G4bool anyVol ) 0084 { fSignifyStepInAnyVolume = anyVol; } 0085 static G4bool GetSignifyStepsInAnyVolume() 0086 { return fSignifyStepInAnyVolume; } 0087 // Flag in step corresponds to first/last step in a volume 'any' 0088 // geometry (if this is true) or refers to first/last step in mass 0089 // geometry only (if false) 0090 0091 // The following methods give access to first/last step in particular 0092 // geometry *independent* of the choice of the 'Signify' flag 0093 // 0094 G4bool IsFirstStepInAnyVolume() const { return fFirstStepInVolume; } 0095 G4bool IsLastStepInAnyVolume() const { return fGeometryLimitedStep; } 0096 G4bool IsFirstStepInMassVolume() const { return fFirstStepInMassVolume; } 0097 G4bool IsLastStepInMassVolume() const { return fMassGeometryLimitedStep; } 0098 0099 public: // without description 0100 0101 void StartTracking(G4Track* aTrack); 0102 void EndTracking(); 0103 0104 static G4bool EnableUseMagneticMoment(G4bool useMoment=true) 0105 { return EnableMagneticMoment(useMoment); } 0106 // Old name ... obsolete 0107 0108 protected: 0109 0110 void ReportInexactEnergy(G4double startEnergy, G4double endEnergy); 0111 // Issue warning 0112 0113 void ReportMove( G4ThreeVector OldVector, G4ThreeVector NewVector, 0114 const G4String& Quantity ); 0115 0116 private: 0117 0118 G4PathFinder* fPathFinder; 0119 // The PathFinder used to transport the particle 0120 0121 G4double fPreviousMassSafety; 0122 G4double fPreviousFullSafety; 0123 0124 G4bool fMassGeometryLimitedStep; 0125 // Flag to determine whether a 'mass' boundary was reached. 0126 0127 private: 0128 0129 G4bool fFirstStepInMassVolume; 0130 // G4bool fLastStepInMassVolume; => use fMassGeometryLimitedStep 0131 0132 static G4bool fSignifyStepInAnyVolume; 0133 // True: First/Last step in any one of the geometries 0134 // False: First/Last step in volume of 'mass' geometry 0135 }; 0136 0137 #endif
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