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25 //
26 /*
27 * ============================================================================
28 *
29 * Filename: CexmcTrackingAction.cc
30 *
31 * Description: tracking action
32 *
33 * Version: 1.0
34 * Created: 22.11.2009 18:22:22
35 * Revision: none
36 * Compiler: gcc
37 *
38 * Author: Alexey Radkov (),
39 * Company: PNPI
40 *
41 * ============================================================================
42 */
43
44 #include <G4ParticleDefinition.hh>
45 #include <G4VProcess.hh>
46 #include <G4Track.hh>
47 #include <G4RunManager.hh>
48 #include "CexmcTrackingAction.hh"
49 #include "CexmcTrackInfo.hh"
50 #include "CexmcIncidentParticleTrackInfo.hh"
51 #include "CexmcProductionModel.hh"
52 #include "CexmcPhysicsManager.hh"
53 #include "CexmcSetup.hh"
54 #include "CexmcException.hh"
55 #include "CexmcCommon.hh"
56
57
58 CexmcTrackingAction::CexmcTrackingAction(
59 CexmcPhysicsManager * physicsManager_ ) :
60 physicsManager( physicsManager_ ), targetVolume( NULL ),
61 outputParticleTrackId( CexmcInvalidTrackId ),
62 outputParticleDecayProductCopyNumber( 0 ), incidentParticle( NULL ),
63 outputParticle( NULL ), nucleusOutputParticle( NULL )
64 {
65 CexmcProductionModel * productionModel(
66 physicsManager->GetProductionModel() );
67 if ( ! productionModel )
68 throw CexmcException( CexmcWeirdException );
69
70 incidentParticle = productionModel->GetIncidentParticle();
71 outputParticle = productionModel->GetOutputParticle();
72 nucleusOutputParticle = productionModel->GetNucleusOutputParticle();
73
74 if ( ! incidentParticle || ! outputParticle || ! nucleusOutputParticle )
75 throw CexmcException( CexmcIncompleteProductionModel );
76
77 G4RunManager * runManager( G4RunManager::GetRunManager() );
78 const CexmcSetup * setup( static_cast< const CexmcSetup * >(
79 runManager->GetUserDetectorConstruction() ) );
80 targetVolume = setup->GetVolume( CexmcSetup::Target );
81 }
82
83
84 void CexmcTrackingAction::PreUserTrackingAction( const G4Track * track )
85 {
86 CexmcTrackInfo * trackInfo( static_cast< CexmcTrackInfo * >(
87 track->GetUserInformation() ) );
88
89 if ( trackInfo )
90 return;
91
92 G4Track * theTrack( const_cast< G4Track * >( track ) );
93
94 do
95 {
96 if ( track->GetParentID() == 0 )
97 {
98 if ( *track->GetDefinition() == *incidentParticle )
99 {
100 trackInfo = new CexmcIncidentParticleTrackInfo(
101 CexmcBeamParticleTrack );
102 theTrack->SetUserInformation( trackInfo );
103 SetupIncidentParticleTrackInfo( track );
104 }
105 else
106 {
107 trackInfo = new CexmcTrackInfo( CexmcBeamParticleTrack );
108 }
109 break;
110 }
111
112 if ( track->GetCreatorProcess()->GetProcessName() ==
113 CexmcStudiedProcessFullName )
114 {
115 do
116 {
117 if ( *track->GetDefinition() == *outputParticle )
118 {
119 outputParticleTrackId = track->GetTrackID();
120 trackInfo = new CexmcTrackInfo( CexmcOutputParticleTrack );
121 break;
122 }
123 if ( *track->GetDefinition() == *nucleusOutputParticle )
124 {
125 trackInfo = new CexmcTrackInfo( CexmcNucleusParticleTrack );
126 break;
127 }
128 } while ( false );
129 break;
130 }
131
132 if ( track->GetParentID() == outputParticleTrackId )
133 {
134 trackInfo = new CexmcTrackInfo(
135 CexmcOutputParticleDecayProductTrack,
136 outputParticleDecayProductCopyNumber++ );
137 break;
138 }
139
140 if ( *track->GetDefinition() == *incidentParticle )
141 {
142 if ( physicsManager->OnlyBeamParticleCanTriggerStudiedProcess() )
143 break;
144 trackInfo = new CexmcIncidentParticleTrackInfo( CexmcInsipidTrack );
145 theTrack->SetUserInformation( trackInfo );
146 SetupIncidentParticleTrackInfo( track );
147 break;
148 }
149 } while ( false );
150
151 if ( ! trackInfo )
152 return;
153
154 if ( ! track->GetUserInformation() )
155 theTrack->SetUserInformation( trackInfo );
156 }
157
158
159 void CexmcTrackingAction::SetupIncidentParticleTrackInfo(
160 const G4Track * track )
161 {
162 CexmcIncidentParticleTrackInfo * trackInfo(
163 static_cast< CexmcIncidentParticleTrackInfo * >(
164 track->GetUserInformation() ) );
165
166 if ( ! trackInfo )
167 return;
168
169 G4VPhysicalVolume * volume( track->GetVolume() );
170
171 if ( volume && volume->GetLogicalVolume() == targetVolume )
172 {
173 physicsManager->ResampleTrackLengthInTarget( track );
174 trackInfo->ActivateStudiedProcess();
175 }
176 }
177
178