include/Geant4/G4VContinuousDiscreteProcess.hh

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0025 //
0026 // G4VContinuousDiscreteProcess
0027 //
0028 // Class description:
0029 //
0030 // Abstract class which defines the public behavior of
0031 // discrete physics interactions.
0032
0033 // Authors:
0034 // - 2 December 1995, G.Cosmo - First implementation, based on object model
0035 // - 8 January 1997, H.Kurashige - New Physics scheme
0036 // --------------------------------------------------------------------
0037 #ifndef G4VContinuousDiscreteProcess_hh
0038 #define G4VContinuousDiscreteProcess_hh 1
0039
0040 #include "globals.hh"
0041 #include "G4ios.hh"
0042
0043 #include "G4VProcess.hh"
0044
0045 class G4VContinuousDiscreteProcess : public G4VProcess
0046 {
0047   public:
0048
0049     G4VContinuousDiscreteProcess(const G4String& ,
0050                                  G4ProcessType aType = fNotDefined);
0051     G4VContinuousDiscreteProcess(G4VContinuousDiscreteProcess &);
0052
0053     virtual ~G4VContinuousDiscreteProcess();
0054
0055     G4VContinuousDiscreteProcess& operator=(const G4VContinuousDiscreteProcess&) = delete;
0056
0057     virtual G4double PostStepGetPhysicalInteractionLength(
0058                              const G4Track& track,
0059                              G4double   previousStepSize,
0060                              G4ForceCondition* condition
0061                             );
0062
0063     virtual G4VParticleChange* PostStepDoIt(
0064                              const G4Track& ,
0065                              const G4Step&
0066                             );
0067
0068     virtual G4double AlongStepGetPhysicalInteractionLength(
0069                              const G4Track&,
0070                              G4double  previousStepSize,
0071                              G4double  currentMinimumStep,
0072                              G4double& currentSafety,
0073                              G4GPILSelection* selection
0074                             );
0075
0076     virtual G4VParticleChange* AlongStepDoIt(
0077                              const G4Track& ,
0078                              const G4Step&
0079                             );
0080
0081     virtual G4double AtRestGetPhysicalInteractionLength(
0082                              const G4Track& ,
0083                              G4ForceCondition*
0084                             ) { return -1.0; }
0085       // No operation in AtRestDoIt
0086
0087     virtual G4VParticleChange* AtRestDoIt(
0088                              const G4Track& ,
0089                              const G4Step&
0090                             ) { return 0; }
0091       // No operation in AtRestDoIt
0092
0093   protected:
0094
0095     virtual G4double GetMeanFreePath(const G4Track& aTrack,
0096                              G4double previousStepSize,
0097                              G4ForceCondition* condition )= 0;
0098       // Calculates from the macroscopic cross-section a mean
0099       // free path, the value is returned in units of distance
0100
0101     virtual G4double GetContinuousStepLimit(const G4Track& aTrack,
0102                              G4double  previousStepSize,
0103                              G4double  currentMinimumStep,
0104                              G4double& currentSafety ) = 0;
0105
0106     inline void SetGPILSelection(G4GPILSelection selection)
0107       { valueGPILSelection = selection; }
0108
0109     inline G4GPILSelection GetGPILSelection() const
0110       { return valueGPILSelection; }
0111
0112   private:
0113
0114     G4VContinuousDiscreteProcess();
0115       // Hidden default constructor
0116
0117     G4GPILSelection valueGPILSelection = CandidateForSelection;
0118       // This is the returned value of G4GPILSelection in
0119       // the arguments of AlongStepGPIL()
0120 };
0121
0122 #endif