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CexmcSteppingAction.cc
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26 /*
27  * ============================================================================
28  *
29  * Filename: CexmcSteppingAction.cc
30  *
31  * Description: stepping action
32  *
33  * Version: 1.0
34  * Created: 27.10.2009 16:03:07
35  * Revision: none
36  * Compiler: gcc
37  *
38  * Author: Alexey Radkov (),
39  * Company: PNPI
40  *
41  * ============================================================================
42  */
43 
44 #include <G4Step.hh>
45 #include <G4Track.hh>
46 #include <G4ParticleDefinition.hh>
47 #include <G4VTouchable.hh>
48 #include <G4NavigationHistory.hh>
49 #include <G4AffineTransform.hh>
50 #include <G4UnitsTable.hh>
51 #include <G4RunManager.hh>
52 #include "CexmcSteppingAction.hh"
53 #include "CexmcPhysicsManager.hh"
54 #include "CexmcSetup.hh"
56 #include "CexmcCommon.hh"
57 
58 
60  CexmcPhysicsManager * physicsManager ) :
61  physicsManager( physicsManager ), targetVolume( NULL )
62 {
63  G4RunManager * runManager( G4RunManager::GetRunManager() );
64  const CexmcSetup * setup( static_cast< const CexmcSetup * >(
65  runManager->GetUserDetectorConstruction() ) );
66  targetVolume = setup->GetVolume( CexmcSetup::Target );
67 }
68 
69 
71 {
72  G4Track * track( step->GetTrack() );
73  CexmcTrackInfo * trackInfo( static_cast< CexmcTrackInfo * >(
74  track->GetUserInformation() ) );
75 
76  if ( ! trackInfo ||
77  trackInfo->GetTypeInfo() != CexmcIncidentParticleTrackType )
78  return;
79 
80  CexmcIncidentParticleTrackInfo * theTrackInfo(
81  static_cast< CexmcIncidentParticleTrackInfo * >( trackInfo ) );
82 
83  G4StepPoint * postStepPoint( step->GetPostStepPoint() );
84  G4StepStatus stepStatus( postStepPoint->GetStepStatus() );
85  const G4VTouchable * touchable( postStepPoint->GetTouchable() );
86  G4VPhysicalVolume * volume( touchable->GetVolume() );
87 
88  if ( volume && volume->GetLogicalVolume() == targetVolume )
89  {
90  if ( ! theTrackInfo->IsStudiedProcessActivated() )
91  {
92  physicsManager->ResampleTrackLengthInTarget( track, postStepPoint );
93  theTrackInfo->ActivateStudiedProcess();
94  }
95 
96  if ( stepStatus != fGeomBoundary )
97  {
98  if ( theTrackInfo->NeedsTrackLengthResampling() )
99  physicsManager->ResampleTrackLengthInTarget(
100  track, postStepPoint );
101  else
102  theTrackInfo->AddTrackLengthInTarget( step->GetStepLength() );
103  }
104  }
105 
106  G4StepPoint * preStepPoint( step->GetPreStepPoint() );
107  touchable = preStepPoint->GetTouchable();
108  volume = touchable->GetVolume();
109 
110  if ( volume && volume->GetLogicalVolume() == targetVolume )
111  {
112  if ( stepStatus == fGeomBoundary )
113  theTrackInfo->ActivateStudiedProcess( false );
114  }
115 }
116