| Geant4 Cross Reference |
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24 // ********************************************************************
25 //
26 // G4BiasingHelper
27 // --------------------------------------------------------------------
28 #include "G4BiasingHelper.hh"
29
30 #include "G4ProcessManager.hh"
31 #include "G4BiasingProcessInterface.hh"
32 #include "G4ParallelGeometriesLimiterProcess.hh"
33
34 G4bool G4BiasingHelper::ActivatePhysicsBiasing(G4ProcessManager* pmanager,
35 const G4String& physicsProcessToBias,
36 const G4String& wrappedName)
37 {
38 G4VProcess* physicsProcess(0);
39
40 G4ProcessVector* vprocess = pmanager->GetProcessList();
41 for (auto ip = 0 ; ip < (G4int)vprocess->size() ; ++ip)
42 {
43 if ( (*vprocess)[ip]->GetProcessName() == physicsProcessToBias )
44 {
45 physicsProcess = (*vprocess)[ip];
46 break;
47 }
48 }
49
50 // -- process not found, return "false" to tell about failure
51 if ( physicsProcess == nullptr ) return false;
52
53 // -- process is not a physics one, return "false" to tell about failure
54 G4int processType = physicsProcess->GetProcessType();
55 if ( ( processType != 2 ) && // EM
56 ( processType != 3 ) && // Optical
57 ( processType != 4 ) && // Hadronic
58 ( processType != 6 ) ) // Decay
59 return false;
60
61 // -- prevent wrapper of wrapper...
62 if ( dynamic_cast< G4BiasingProcessInterface* >( physicsProcess ) )
63 return false;
64
65 // -- remember process indeces:
66 G4int atRestIndex = pmanager->GetProcessOrdering(physicsProcess, idxAtRest);
67 G4int alongStepIndex = pmanager->GetProcessOrdering(physicsProcess, idxAlongStep);
68 G4int postStepIndex = pmanager->GetProcessOrdering(physicsProcess, idxPostStep);
69
70 // -- now remove the physic process, that will be replaced by a wrapped version:
71 G4VProcess* removed = pmanager->RemoveProcess(physicsProcess);
72 if ( removed != physicsProcess )
73 {
74 G4ExceptionDescription ed;
75 ed << "Internal inconsistency in processes handling. Please report !" << G4endl;
76 G4Exception("G4BiasingHelper::ActivatePhysicsBiasing(...)",
77 "BIAS.GEN.01", FatalException, ed);
78 }
79
80 G4BiasingProcessInterface* biasingWrapper =
81 new G4BiasingProcessInterface( physicsProcess,
82 atRestIndex != ordInActive,
83 alongStepIndex != ordInActive,
84 postStepIndex != ordInActive,
85 wrappedName );
86
87 if ( alongStepIndex == -1 ) alongStepIndex = ordDefault;
88
89 pmanager->AddProcess( biasingWrapper, atRestIndex, alongStepIndex, postStepIndex);
90
91 return true;
92 }
93
94 void G4BiasingHelper::ActivateNonPhysicsBiasing(G4ProcessManager* pmanager,
95 const G4String& nonPhysicsProcessName )
96 {
97 G4BiasingProcessInterface* biasingNonPhys(nullptr);
98 if ( nonPhysicsProcessName == "" )
99 biasingNonPhys = new G4BiasingProcessInterface();
100 else
101 biasingNonPhys = new G4BiasingProcessInterface(nonPhysicsProcessName );
102
103 pmanager->AddProcess( biasingNonPhys, ordInActive, ordInActive, ordDefault);
104 }
105
106 G4ParallelGeometriesLimiterProcess*
107 G4BiasingHelper::AddLimiterProcess(G4ProcessManager* pmanager,
108 const G4String& processName)
109 {
110 G4ParallelGeometriesLimiterProcess* toReturn = nullptr;
111
112 G4ProcessVector* processList = pmanager->GetProcessList();
113 G4bool noInstance = true;
114 for (auto i = 0 ; i < (G4int)processList->size() ; ++i)
115 {
116 G4VProcess* process = (*processList)[i];
117 if ( dynamic_cast< G4ParallelGeometriesLimiterProcess* >( process ) )
118 {
119 noInstance = false;
120
121 G4ExceptionDescription ed;
122 ed << "Trying to re-add a G4ParallelGeometriesLimiterProcess process \n"
123 << "to the process manager for '"
124 << pmanager->GetParticleType()->GetParticleName()
125 << " (PDG : " << pmanager->GetParticleType()->GetPDGEncoding() << " )"
126 << " while one is already present." << G4endl;
127 G4Exception("G4BiasingHelper::AddBiasingProcessLimiter()",
128 "BIAS.GEN.28", JustWarning, ed, "Call ignored.");
129 break;
130 }
131 }
132
133 if ( noInstance )
134 {
135 G4ParallelGeometriesLimiterProcess* biasingLimiter = new G4ParallelGeometriesLimiterProcess(processName);
136 pmanager->AddProcess ( biasingLimiter );
137 pmanager->SetProcessOrderingToSecond( biasingLimiter, idxAlongStep );
138 pmanager->SetProcessOrderingToLast ( biasingLimiter, idxPostStep );
139
140 toReturn = biasingLimiter;
141 }
142
143 return toReturn;
144 }
145