TGeant4/TG4TrackingAction.cxx

   1 // $Id$
   2 // Category: event
   3 //
   4 // See the class description in the header file.
   5
   6 #include "TG4TrackingAction.h"
   7 #include "TG4StepManager.h"
   8 #include "TG4VSensitiveDetector.h"
   9 #include "TG4Globals.h"
  10
  11 //_____________________________________________________________________________
  12 TG4TrackingAction::TG4TrackingAction() {
  13 //
  14 }
  15
  16 //_____________________________________________________________________________
  17 TG4TrackingAction::TG4TrackingAction(const TG4TrackingAction& right) {
  18 //
  19   TG4Globals::Exception("TG4TrackingAction is protected from copying.");
  20 }
  21
  22 //_____________________________________________________________________________
  23 TG4TrackingAction::~TG4TrackingAction() {
  24 //
  25 }
  26
  27 // operators
  28
  29 //_____________________________________________________________________________
  30 TG4TrackingAction&
  31 TG4TrackingAction::operator=(const TG4TrackingAction &right)
  32 {
  33   // check assignement to self
  34   if (this == &right) return *this;
  35
  36   TG4Globals::Exception("TG4TrackingAction is protected from assigning.");
  37
  38   return *this;
  39 }
  40
  41 // public methods
  42
  43 //_____________________________________________________________________________
  44 void TG4TrackingAction::PreUserTrackingAction(const G4Track* track)
  45 {
  46 // Called by G4 kernel before starting tracking.
  47 // ---
  48
  49   // set step manager status
  50   TG4StepManager* stepManager = TG4StepManager::Instance();
  51   stepManager->SetStep((G4Track*)track, kVertex);
  52
  53   // call pre-tracking action of derived class
  54   PreTrackingAction(track);
  55
  56   // let sensitive detector process vertex step
  57   // (this ensures compatibility with G3 that
  58   // makes first step of zero length)
  59
  60   G4VPhysicalVolume* pv = stepManager->GetCurrentPhysicalVolume();
  61
  62   if (!pv) {
  63     G4String text = "TG4TrackingAction::PreUserTrackingAction: \n";
  64     text = text + "   Cannot locate track vertex.";
  65     TG4Globals::Exception(text);
  66   }
  67
  68   G4VSensitiveDetector* sd
  69     = pv->GetLogicalVolume()->GetSensitiveDetector();
  70
  71   if (sd) {
  72     TG4VSensitiveDetector* tsd = dynamic_cast<TG4VSensitiveDetector*>(sd);
  73     if (tsd)
  74       tsd->UserProcessHits((G4Track*)track, 0);
  75     else {
  76       G4String text = "TG4TrackingAction::PreUserTrackingAction: \n";
  77       text = text + "   Unknown sensitive detector type";
  78       TG4Globals::Exception(text);
  79     }
  80   }
  81 }
  82
  83 //_____________________________________________________________________________
  84 void TG4TrackingAction::PostUserTrackingAction(const G4Track* track)
  85 {
  86 // Called by G4 kernel after finishing tracking.
  87 // ---
  88
  89   // call post-tracking action of derived class
  90   PostTrackingAction(track);
  91 }
  92