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25 //
26 // G4WeightCutOffProcess
27 //
28 // Class description:
29 //
30 // Process for biasing particle-change cutoff.
31
32 // Author: Michael Dressel, 2002
33 // --------------------------------------------------------------------
34 #ifndef G4WeightCutOffProcess_hh
35 #define G4WeightCutOffProcess_hh 1
36
37 #include "G4VProcess.hh"
38 #include "G4VTrackTerminator.hh"
39 #include "G4GeometryCell.hh"
40 #include "G4VTouchable.hh"
41
42 //class G4VGCellFinder;
43 class G4VIStore;
44
45 class G4Step;
46 class G4Navigator;
47 class G4TransportationManager;
48 class G4PathFinder;
49
50 #include "G4FieldTrack.hh"
51 #include "G4TouchableHandle.hh"
52 #include "G4MultiNavigator.hh" // For ELimited enum
53
54 class G4WeightCutOffProcess : public G4VProcess
55 {
56
57 public: // with description
58
59 G4WeightCutOffProcess(G4double wsurvival,
60 G4double wlimit,
61 G4double isource,
62 G4VIStore *istore,
63 const G4String &aName = "WeightCutOffProcess",
64 G4bool para = false);
65 // create a G4ParticleChange
66
67 virtual ~G4WeightCutOffProcess();
68 // delete the G4ParticleChange
69
70 G4WeightCutOffProcess(const G4WeightCutOffProcess &) = delete;
71 G4WeightCutOffProcess &operator=(const G4WeightCutOffProcess &) = delete;
72
73 //--------------------------------------------------------------
74 // Set Parallel World
75 //--------------------------------------------------------------
76
77 void SetParallelWorld(const G4String ¶llelWorldName);
78 void SetParallelWorld(G4VPhysicalVolume* parallelWorld);
79
80 //--------------------------------------------------------------
81 // Process interface
82 //--------------------------------------------------------------
83
84 void StartTracking(G4Track*);
85
86 virtual G4double
87 PostStepGetPhysicalInteractionLength(const G4Track& aTrack,
88 G4double previousStepSize,
89 G4ForceCondition* condition);
90 // make the process beeing forced
91
92 virtual G4VParticleChange * PostStepDoIt(const G4Track&,
93 const G4Step&);
94
95
96 const G4String &GetName() const;
97
98 public: // without description
99
100 // no operation in AtRestDoIt and AlongStepDoIt
101
102 virtual G4double
103 AlongStepGetPhysicalInteractionLength(const G4Track&,
104 G4double ,
105 G4double ,
106 G4double& ,
107 G4GPILSelection*);
108
109 virtual G4double
110 AtRestGetPhysicalInteractionLength(const G4Track& ,
111 G4ForceCondition*);
112
113 virtual G4VParticleChange* AtRestDoIt(const G4Track&, const G4Step&);
114 virtual G4VParticleChange* AlongStepDoIt(const G4Track&, const G4Step&);
115
116 private:
117
118 void CopyStep(const G4Step & step);
119
120 G4Step* fGhostStep = nullptr;
121 G4StepPoint* fGhostPreStepPoint = nullptr;
122 G4StepPoint* fGhostPostStepPoint = nullptr;
123
124 G4ParticleChange* fParticleChange = nullptr;
125 G4double fWeightSurvival = 0.;
126 G4double fWeightLimit = 0.;
127 G4double fSourceImportance = 0.;
128 G4VIStore* fIStore = nullptr;
129
130 G4TransportationManager* fTransportationManager = nullptr;
131 G4PathFinder* fPathFinder = nullptr;
132
133 // -------------------------------
134 // Navigation in the Ghost World:
135 // -------------------------------
136 G4String fGhostWorldName = "NoParallelWorld";
137 G4VPhysicalVolume* fGhostWorld = nullptr;
138 G4Navigator* fGhostNavigator = nullptr;
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;
147 G4FieldTrack fEndTrack = '0';
148 ELimited feLimited = kDoNot;
149 };
150
151 #endif
152