include/Geant4/G4VContinuousProcess.hh

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0024 // ********************************************************************
0025 //
0026 // G4VContinuousProcess
0027 //
0028 // Class description:
0029 //
0030 // Abstract class which defines the public behavior of
0031 // Continuous physics interactions.
0032
0033 // Authors:
0034 // - 2 December 1995, G.Cosmo - First implementation, based on object model
0035 // - 18 December 1996, H.Kurashige - New Physics scheme
0036 // --------------------------------------------------------------------
0037 #ifndef G4VContinuousProcess_hh
0038 #define G4VContinuousProcess_hh 1
0039
0040 #include "globals.hh"
0041 #include "G4ios.hh"
0042
0043 #include "G4VProcess.hh"
0044
0045 class G4VContinuousProcess : public G4VProcess
0046 {
0047   public:
0048
0049     G4VContinuousProcess(const G4String& aName,
0050                          G4ProcessType aType = fNotDefined );
0051     G4VContinuousProcess(G4VContinuousProcess &);
0052
0053     virtual ~G4VContinuousProcess();
0054
0055     G4VContinuousProcess& operator=(const G4VContinuousProcess&) = delete;
0056
0057     virtual G4double AlongStepGetPhysicalInteractionLength(
0058                              const G4Track& track,
0059                              G4double  previousStepSize,
0060                              G4double  currentMinimumStep,
0061                              G4double& proposedSafety,
0062                              G4GPILSelection* selection
0063                             );
0064
0065     virtual G4VParticleChange* AlongStepDoIt(
0066                              const G4Track& ,
0067                              const G4Step&
0068                             );
0069
0070     // no operation in AtRestDoIt and PostStepDoIt
0071     //
0072     virtual G4double PostStepGetPhysicalInteractionLength(
0073                              const G4Track&,
0074                              G4double,
0075                              G4ForceCondition*
0076                             ) { return -1.0; }
0077
0078     virtual G4double AtRestGetPhysicalInteractionLength(
0079                              const G4Track& ,
0080                              G4ForceCondition*
0081                             ) { return -1.0; }
0082
0083     // no operation in AtRestDoIt and PostStepDoIt
0084     //
0085     virtual G4VParticleChange* AtRestDoIt(
0086                              const G4Track& ,
0087                              const G4Step&
0088                             ) { return 0; }
0089
0090     virtual G4VParticleChange* PostStepDoIt(
0091                              const G4Track& ,
0092                              const G4Step&
0093                             ) { return 0; }
0094
0095   protected:
0096
0097     virtual G4double GetContinuousStepLimit( const G4Track& aTrack,
0098                                              G4double previousStepSize,
0099                                              G4double currentMinimumStep,
0100                                              G4double& currentSafety ) = 0;
0101       // This pure virtual function is used to calculate step limit
0102       // for AlongStep in the derived processes
0103
0104     inline void SetGPILSelection(G4GPILSelection selection)
0105       { valueGPILSelection = selection; }
0106
0107     inline G4GPILSelection GetGPILSelection() const
0108       { return valueGPILSelection; }
0109
0110   private:
0111
0112     G4VContinuousProcess();
0113       // Hidden default constructor
0114
0115     G4GPILSelection valueGPILSelection = CandidateForSelection;
0116       // The returned value of G4GPILSelection in
0117       // the arguments of AlongStepGPIL()
0118 };
0119
0120 #endif