include/Geant4/G4WeightCutOffProcess.hh

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0025 //
0026 // G4WeightCutOffProcess
0027 //
0028 // Class description:
0029 //
0030 // Process for biasing particle-change cutoff.
0031
0032 // Author: Michael Dressel, 2002
0033 // --------------------------------------------------------------------
0034 #ifndef G4WeightCutOffProcess_hh
0035 #define G4WeightCutOffProcess_hh 1
0036
0037 #include "G4VProcess.hh"
0038 #include "G4VTrackTerminator.hh"
0039 #include "G4GeometryCell.hh"
0040 #include "G4VTouchable.hh"
0041
0042 //class G4VGCellFinder;
0043 class G4VIStore;
0044
0045 class G4Step;
0046 class G4Navigator;
0047 class G4TransportationManager;
0048 class G4PathFinder;
0049
0050 #include "G4FieldTrack.hh"
0051 #include "G4TouchableHandle.hh"
0052 #include "G4MultiNavigator.hh"   // For ELimited enum
0053
0054 class G4WeightCutOffProcess : public G4VProcess
0055 {
0056
0057 public:  // with description
0058
0059   G4WeightCutOffProcess(G4double wsurvival,
0060                         G4double wlimit,
0061                         G4double isource,
0062                         G4VIStore *istore,
0063                         const G4String &aName = "WeightCutOffProcess",
0064                         G4bool para = false);
0065     // create a G4ParticleChange
0066
0067   virtual ~G4WeightCutOffProcess();
0068     // delete the G4ParticleChange
0069
0070   G4WeightCutOffProcess(const G4WeightCutOffProcess &) = delete;
0071   G4WeightCutOffProcess &operator=(const G4WeightCutOffProcess &) = delete;
0072
0073   //--------------------------------------------------------------
0074   // Set Parallel World
0075   //--------------------------------------------------------------
0076
0077   void SetParallelWorld(const G4String &parallelWorldName);
0078   void SetParallelWorld(G4VPhysicalVolume* parallelWorld);
0079
0080   //--------------------------------------------------------------
0081   //     Process interface
0082   //--------------------------------------------------------------
0083
0084   void StartTracking(G4Track*);
0085
0086   virtual G4double
0087   PostStepGetPhysicalInteractionLength(const G4Track& aTrack,
0088                                        G4double   previousStepSize,
0089                                        G4ForceCondition* condition);
0090     // make the process beeing forced
0091
0092   virtual G4VParticleChange * PostStepDoIt(const G4Track&,
0093                                            const G4Step&);
0094
0095
0096   const G4String &GetName() const;
0097
0098 public:  // without description
0099
0100   //  no operation in  AtRestDoIt and  AlongStepDoIt
0101
0102   virtual G4double
0103   AlongStepGetPhysicalInteractionLength(const G4Track&,
0104                                         G4double  ,
0105                                         G4double  ,
0106                                         G4double& ,
0107                                         G4GPILSelection*);
0108
0109   virtual G4double
0110   AtRestGetPhysicalInteractionLength(const G4Track& ,
0111                                      G4ForceCondition*);
0112
0113   virtual G4VParticleChange* AtRestDoIt(const G4Track&, const G4Step&);
0114   virtual G4VParticleChange* AlongStepDoIt(const G4Track&, const G4Step&);
0115
0116 private:
0117
0118   void CopyStep(const G4Step & step);
0119
0120   G4Step* fGhostStep = nullptr;
0121   G4StepPoint* fGhostPreStepPoint = nullptr;
0122   G4StepPoint* fGhostPostStepPoint = nullptr;
0123
0124   G4ParticleChange* fParticleChange = nullptr;
0125   G4double fWeightSurvival = 0.;
0126   G4double fWeightLimit = 0.;
0127   G4double fSourceImportance = 0.;
0128   G4VIStore* fIStore = nullptr;
0129
0130   G4TransportationManager* fTransportationManager = nullptr;
0131   G4PathFinder*        fPathFinder = nullptr;
0132
0133   // -------------------------------
0134   // Navigation in the Ghost World:
0135   // -------------------------------
0136   G4String             fGhostWorldName = "NoParallelWorld";
0137   G4VPhysicalVolume*   fGhostWorld = nullptr;
0138   G4Navigator*         fGhostNavigator = nullptr;
0139   G4int                fNavigatorID = -1;
0140   G4TouchableHandle    fOldGhostTouchable;
0141   G4TouchableHandle    fNewGhostTouchable;
0142   G4FieldTrack         fFieldTrack = '0';
0143   G4double             fGhostSafety = -1;
0144   G4bool               fOnBoundary = false;
0145
0146   G4bool               fParaflag;
0147   G4FieldTrack         fEndTrack = '0';
0148   ELimited             feLimited = kDoNot;
0149 };
0150
0151 #endif