| Geant4 Cross Reference |
1 //
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25 //
26 // G4WeightWindowProcess
27 //
28 // Class description:
29 //
30 // Used internally by weight window technique in the "mass" geometry.
31 // This process is a forced post step process. It will apply
32 // weight window biasing on boundaries, collisions
33 // or both according to the G4PlaceOfAction argument.
34 //
35 // Author: Michael Dressel, 2002
36 // --------------------------------------------------------------------
37 #ifndef G4WeightWindowProcess_hh
38 #define G4WeightWindowProcess_hh 1
39
40 #include "G4VProcess.hh"
41 #include "G4VTrackTerminator.hh"
42 #include "G4PlaceOfAction.hh"
43 #include "G4VTouchable.hh"
44
45 class G4SamplingPostStepAction;
46 class G4VWeightWindowAlgorithm;
47 class G4VWeightWindowStore;
48
49 class G4Step;
50 class G4Navigator;
51 class G4TransportationManager;
52 class G4PathFinder;
53
54 #include "G4FieldTrack.hh"
55 #include "G4TouchableHandle.hh"
56 #include "G4MultiNavigator.hh" // For ELimited enum
57
58 class G4WeightWindowProcess : public G4VProcess, public G4VTrackTerminator
59 {
60
61 public:
62
63 G4WeightWindowProcess(const G4VWeightWindowAlgorithm&
64 aWeightWindowAlgorithm,
65 const G4VWeightWindowStore &aWWStore,
66 const G4VTrackTerminator* TrackTerminator,
67 G4PlaceOfAction placeOfAction,
68 const G4String& aName = "WeightWindowProcess",
69 G4bool para = false);
70 // creates a G4ParticleChange
71
72 virtual ~G4WeightWindowProcess();
73 // delete the G4ParticleChange
74
75 G4WeightWindowProcess(const G4WeightWindowProcess &) = delete;
76 G4WeightWindowProcess &operator=(const G4WeightWindowProcess &) = delete;
77
78 //--------------------------------------------------------------
79 // Set Parallel World
80 //--------------------------------------------------------------
81
82 void SetParallelWorld(const G4String& parallelWorldName);
83 void SetParallelWorld(G4VPhysicalVolume* parallelWorld);
84
85 //--------------------------------------------------------------
86 // Process interface
87 //--------------------------------------------------------------
88
89 void StartTracking(G4Track*);
90
91 virtual G4double
92 PostStepGetPhysicalInteractionLength(const G4Track& aTrack,
93 G4double previousStepSize,
94 G4ForceCondition* condition);
95 // make process beeing forced
96 virtual G4VParticleChange *PostStepDoIt(const G4Track&, const G4Step&);
97 // aply weight window sampling
98
99 virtual void KillTrack() const;
100 // used in case no scoring process follows that does the killing
101
102 virtual const G4String& GetName() const;
103
104 // no operation in AtRestDoIt and AlongStepDoIt
105
106 virtual G4double
107 AlongStepGetPhysicalInteractionLength(const G4Track&, G4double, G4double,
108 G4double&, G4GPILSelection*);
109 virtual G4double
110 AtRestGetPhysicalInteractionLength(const G4Track&, G4ForceCondition*);
111
112 virtual G4VParticleChange* AtRestDoIt(const G4Track&, const G4Step&);
113 virtual G4VParticleChange* AlongStepDoIt(const G4Track&, const G4Step&);
114
115 private:
116
117 void CopyStep(const G4Step& step);
118
119 G4Step* fGhostStep = nullptr;
120 G4StepPoint* fGhostPreStepPoint = nullptr;
121 G4StepPoint* fGhostPostStepPoint = nullptr;
122
123 G4ParticleChange* fParticleChange = nullptr;
124 const G4VWeightWindowAlgorithm& fWeightWindowAlgorithm;
125 const G4VWeightWindowStore& fWeightWindowStore;
126 G4SamplingPostStepAction* fPostStepAction = nullptr;
127 G4PlaceOfAction fPlaceOfAction;
128
129 G4TransportationManager* fTransportationManager = nullptr;
130 G4PathFinder* fPathFinder = nullptr;
131
132 // -------------------------------
133 // Navigation in the Ghost World:
134 // -------------------------------
135 G4String fGhostWorldName = "NoParallelWorld";
136 G4VPhysicalVolume* fGhostWorld = nullptr;
137 G4Navigator* fGhostNavigator = nullptr;
138 G4int fNavigatorID = -1;
139 G4TouchableHandle fOldGhostTouchable;
140 G4TouchableHandle fNewGhostTouchable;
141 G4FieldTrack fFieldTrack = '0';
142 G4double fGhostSafety = -1;
143 G4bool fOnBoundary = false;
144
145 G4bool fParaflag = false;
146 G4FieldTrack fEndTrack = '0';
147 ELimited feLimited = kDoNot;
148 };
149
150 #endif
151