| Geant4 Cross Reference |
1 //
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25 //
26 //
27 //
28 //
29 // ------------------------------------------------------------
30 // GEANT 4 include file implementation
31 // ------------------------------------------------------------
32 //
33 // Class description:
34 //
35 // G4CoupledTransportation is an optional process to transport
36 // a particle, in case of coupled navigation in parallel geometries
37 // i.e. the geometrical propagation will be done
38 // encountering the geometrical volumes of the detectors and
39 // those of parallel geometries (eg for biasing, scoring, fast simulation)
40 // It is tasked with updating the "safety" to reflect the geometrical
41 // distance to the nearest volume, and the time of flight of the particle.
42
43 // =======================================================================
44 // Created: 17 May 2006, J. Apostolakis
45 // =======================================================================
46 #ifndef G4CoupledTransportation_hh
47 #define G4CoupledTransportation_hh 1
48
49 #include "G4Transportation.hh"
50
51 #include "G4Track.hh"
52 #include "G4Step.hh"
53
54 class G4PathFinder;
55
56 class G4CoupledTransportation : public G4Transportation
57 {
58
59 public: // with description
60
61 G4CoupledTransportation( G4int verbosityLevel= 0);
62 ~G4CoupledTransportation();
63
64 G4double AlongStepGetPhysicalInteractionLength(
65 const G4Track& track,
66 G4double previousStepSize,
67 G4double currentMinimumStep,
68 G4double& currentSafety,
69 G4GPILSelection* selection
70 );
71
72 // AlongStepDoIt is implemented by G4Transportation.
73
74 G4VParticleChange* PostStepDoIt(
75 const G4Track& track,
76 const G4Step& stepData
77 );
78 // Responsible for the relocation
79
80 // PostStepGetPhysicalInteractionLength is implemented by
81 // G4Transportation to force PostStepDoIt, but not limiting the step.
82
83 static void SetSignifyStepsInAnyVolume( G4bool anyVol )
84 { fSignifyStepInAnyVolume = anyVol; }
85 static G4bool GetSignifyStepsInAnyVolume()
86 { return fSignifyStepInAnyVolume; }
87 // Flag in step corresponds to first/last step in a volume 'any'
88 // geometry (if this is true) or refers to first/last step in mass
89 // geometry only (if false)
90
91 // The following methods give access to first/last step in particular
92 // geometry *independent* of the choice of the 'Signify' flag
93 //
94 G4bool IsFirstStepInAnyVolume() const { return fFirstStepInVolume; }
95 G4bool IsLastStepInAnyVolume() const { return fGeometryLimitedStep; }
96 G4bool IsFirstStepInMassVolume() const { return fFirstStepInMassVolume; }
97 G4bool IsLastStepInMassVolume() const { return fMassGeometryLimitedStep; }
98
99 public: // without description
100
101 void StartTracking(G4Track* aTrack);
102 void EndTracking();
103
104 static G4bool EnableUseMagneticMoment(G4bool useMoment=true)
105 { return EnableMagneticMoment(useMoment); }
106 // Old name ... obsolete
107
108 protected:
109
110 void ReportInexactEnergy(G4double startEnergy, G4double endEnergy);
111 // Issue warning
112
113 void ReportMove( G4ThreeVector OldVector, G4ThreeVector NewVector,
114 const G4String& Quantity );
115
116 private:
117
118 G4PathFinder* fPathFinder;
119 // The PathFinder used to transport the particle
120
121 G4double fPreviousMassSafety;
122 G4double fPreviousFullSafety;
123
124 G4bool fMassGeometryLimitedStep;
125 // Flag to determine whether a 'mass' boundary was reached.
126
127 private:
128
129 G4bool fFirstStepInMassVolume;
130 // G4bool fLastStepInMassVolume; => use fMassGeometryLimitedStep
131
132 static G4bool fSignifyStepInAnyVolume;
133 // True: First/Last step in any one of the geometries
134 // False: First/Last step in volume of 'mass' geometry
135 };
136
137 #endif
138