| Geant4 Cross Reference |
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25 //
26 // G4BOptnForceFreeFlight
27 // -------------------------------------------
28 #include "G4BOptnForceFreeFlight.hh"
29 #include "G4ILawForceFreeFlight.hh"
30 #include "G4BiasingProcessInterface.hh"
31 #include "G4Step.hh"
32
33 G4BOptnForceFreeFlight::G4BOptnForceFreeFlight
34 : G4VBiasingOperation( name )
35 {
36 fForceFreeFlightInteractionLaw = new G4ILawF
37 }
38
39 G4BOptnForceFreeFlight::~G4BOptnForceFreeFligh
40 {
41 delete fForceFreeFlightInteractionLaw;
42 }
43
44 const G4VBiasingInteractionLaw* G4BOptnForceFr
45 ProvideOccurenceBiasingInteractionLaw( const G
46 G4Force
47 {
48 fOperationComplete = false;
49 proposeForceCondition = Forced;
50 return fForceFreeFlightInteractionLaw;
51 }
52
53 G4VParticleChange* G4BOptnForceFreeFlight::
54 ApplyFinalStateBiasing( const G4BiasingProcess
55 const G4Track* track,
56 G4bool& forceFinalStat
57 {
58 // -- If the track is reaching the volume bo
59 // -- weight is brought back to non-zero val
60 // -- ApplyFinalStateBiasing operation calle
61 // -- is applied by each operation.
62 // -- If the track is not reaching the volum
63
64 fParticleChange.Initialize( *track );
65 forceFinalState = true;
66 if ( step->GetPostStepPoint()->GetStepStatus
67 {
68 // -- Sanity checks:
69 if ( fInitialTrackWeight <= DBL_MIN )
70 {
71 G4ExceptionDescription ed;
72 ed << " Initial track weight is null ! "
73 G4Exception(" G4BOptnForceFreeFlight::Ap
74 "BIAS.GEN.05", JustWarning,
75 }
76 if ( fCumulatedWeightChange <= DBL_MIN )
77 {
78 G4ExceptionDescription ed;
79 ed << " Cumulated weight is null ! " <<
80 G4Exception(" G4BOptnForceFreeFlight::Ap
81 "BIAS.GEN.06", JustWarning,
82 }
83 G4double proposedWeight = track->GetWeight
84 if ( callingProcess->GetIsFirstPostStepDoI
85 proposedWeight = fCumulatedWeightChange
86 else
87 proposedWeight *= fCumulatedWeightChange
88 fParticleChange.ProposeWeight(proposedWeig
89 fOperationComplete = true;
90 }
91
92 return &fParticleChange;
93 }
94
95 void G4BOptnForceFreeFlight::
96 AlongMoveBy( const G4BiasingProcessInterface*,
97 const G4Step*, G4double weightCha
98 {
99 fCumulatedWeightChange *= weightChange;
100 }
101