| Geant4 Cross Reference |
1 //
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25 //
26 // G4VContinuousProcess
27 //
28 // Class description:
29 //
30 // Abstract class which defines the public behavior of
31 // Continuous physics interactions.
32
33 // Authors:
34 // - 2 December 1995, G.Cosmo - First implementation, based on object model
35 // - 18 December 1996, H.Kurashige - New Physics scheme
36 // --------------------------------------------------------------------
37 #ifndef G4VContinuousProcess_hh
38 #define G4VContinuousProcess_hh 1
39
40 #include "globals.hh"
41 #include "G4ios.hh"
42
43 #include "G4VProcess.hh"
44
45 class G4VContinuousProcess : public G4VProcess
46 {
47 public:
48
49 G4VContinuousProcess(const G4String& aName,
50 G4ProcessType aType = fNotDefined );
51 G4VContinuousProcess(G4VContinuousProcess &);
52
53 virtual ~G4VContinuousProcess();
54
55 G4VContinuousProcess& operator=(const G4VContinuousProcess&) = delete;
56
57 virtual G4double AlongStepGetPhysicalInteractionLength(
58 const G4Track& track,
59 G4double previousStepSize,
60 G4double currentMinimumStep,
61 G4double& proposedSafety,
62 G4GPILSelection* selection
63 );
64
65 virtual G4VParticleChange* AlongStepDoIt(
66 const G4Track& ,
67 const G4Step&
68 );
69
70 // no operation in AtRestDoIt and PostStepDoIt
71 //
72 virtual G4double PostStepGetPhysicalInteractionLength(
73 const G4Track&,
74 G4double,
75 G4ForceCondition*
76 ) { return -1.0; }
77
78 virtual G4double AtRestGetPhysicalInteractionLength(
79 const G4Track& ,
80 G4ForceCondition*
81 ) { return -1.0; }
82
83 // no operation in AtRestDoIt and PostStepDoIt
84 //
85 virtual G4VParticleChange* AtRestDoIt(
86 const G4Track& ,
87 const G4Step&
88 ) { return 0; }
89
90 virtual G4VParticleChange* PostStepDoIt(
91 const G4Track& ,
92 const G4Step&
93 ) { return 0; }
94
95 protected:
96
97 virtual G4double GetContinuousStepLimit( const G4Track& aTrack,
98 G4double previousStepSize,
99 G4double currentMinimumStep,
100 G4double& currentSafety ) = 0;
101 // This pure virtual function is used to calculate step limit
102 // for AlongStep in the derived processes
103
104 inline void SetGPILSelection(G4GPILSelection selection)
105 { valueGPILSelection = selection; }
106
107 inline G4GPILSelection GetGPILSelection() const
108 { return valueGPILSelection; }
109
110 private:
111
112 G4VContinuousProcess();
113 // Hidden default constructor
114
115 G4GPILSelection valueGPILSelection = CandidateForSelection;
116 // The returned value of G4GPILSelection in
117 // the arguments of AlongStepGPIL()
118 };
119
120 #endif
121