| Geant4 Cross Reference |
1 // 1
2 // *******************************************
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17 // *
18 // * This code implementation is the result
19 // * technical work of the GEANT4 collaboratio
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24 // *******************************************
25 //
26 // G4ImportanceProcess
27 //
28 // Class description:
29 //
30 // Used internally by importance sampling in t
31 // This process is a forced post step process.
32 // importance sampling if the particle crosses
33 // "mass" geometry.
34
35 // Author: Michael Dressel, 2002
36 // -------------------------------------------
37 #ifndef G4ImportanceProcess_hh
38 #define G4ImportanceProcess_hh 1
39
40 #include "G4VProcess.hh"
41 #include "G4VTrackTerminator.hh"
42 #include "G4VTouchable.hh"
43
44 class G4SamplingPostStepAction;
45 class G4VImportanceAlgorithm;
46 class G4VIStore;
47
48 class G4Step;
49 class G4Navigator;
50 class G4TransportationManager;
51 class G4PathFinder;
52
53 #include "G4FieldTrack.hh"
54 #include "G4TouchableHandle.hh"
55 #include "G4MultiNavigator.hh" // For ELimit
56
57 class G4ImportanceProcess : public G4VProcess,
58 {
59
60 public:
61
62 G4ImportanceProcess(const G4VImportanceAlgor
63 const G4VIStore &aIstore
64 const G4VTrackTerminator
65 const G4String &aName =
66 G4bool para = fals
67 // creates a G4ParticleChange
68
69 virtual ~G4ImportanceProcess();
70 // delete the G4ParticleChange
71
72 G4ImportanceProcess(const G4ImportanceProces
73 G4ImportanceProcess &operator=(const G4Impor
74
75 //------------------------------------------
76 // Set Parallel World
77 //------------------------------------------
78
79 void SetParallelWorld(const G4String& parall
80
81 //------------------------------------------
82 // Process interface
83 //------------------------------------------
84
85 void StartTracking(G4Track*);
86
87
88 virtual G4double
89 PostStepGetPhysicalInteractionLength(const G
90 G4doubl
91 G4Force
92 // make process beeing forced
93
94 virtual G4VParticleChange* PostStepDoIt(cons
95 // manage the importance sampling in the "
96
97 virtual void KillTrack() const;
98 // used in case no scoring process follows
99
100 virtual const G4String& GetName() const;
101
102 // no operation in AtRestDoIt and AlongSt
103
104 virtual G4double
105 AlongStepGetPhysicalInteractionLength(const
106 G4doub
107 G4doub
108 G4doub
109 G4GPIL
110 virtual G4double
111 AtRestGetPhysicalInteractionLength(const G4T
112 G4ForceCo
113
114 virtual G4VParticleChange* AtRestDoIt(const
115 virtual G4VParticleChange* AlongStepDoIt(con
116
117 private:
118
119 void CopyStep(const G4Step& step);
120
121 G4Step* fGhostStep = nullptr;
122 G4StepPoint* fGhostPreStepPoint = nullptr;
123 G4StepPoint* fGhostPostStepPoint = nullptr;
124
125 G4ParticleChange* fParticleChange = nullptr;
126 const G4VImportanceAlgorithm &fImportanceAlg
127 const G4VIStore& fIStore;
128 G4SamplingPostStepAction* fPostStepAction =
129
130 G4TransportationManager* fTransportationMana
131 G4PathFinder* fPathFinder = nullptr;
132
133 // -------------------------------
134 // Navigation in the Ghost World:
135 // -------------------------------
136 G4String fGhostWorldName = "NoPa
137 G4VPhysicalVolume* fGhostWorld = nullptr;
138 G4Navigator* fGhostNavigator = nullp
139 G4int fNavigatorID = -1;
140 G4TouchableHandle fOldGhostTouchable;
141 G4TouchableHandle fNewGhostTouchable;
142 G4FieldTrack fFieldTrack = '0';
143 G4double fGhostSafety = -1;
144 G4bool fOnBoundary = false;
145
146 G4bool fParaflag = false;
147 G4FieldTrack fEndTrack = '0';
148 ELimited feLimited = kDoNot;
149 };
150
151 #endif
152