G4MSSteppingAction.cc

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00026 //
00027 // $Id$
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00029 //
00030 //
00031 
00032 
00033 #include "G4MSSteppingAction.hh"
00034 
00035 #include "G4Step.hh"
00036 #include "G4VPhysicalVolume.hh"
00037 #include "G4LogicalVolume.hh"
00038 #include "G4Region.hh"
00039 #include "G4Material.hh"
00040 
00041 G4MSSteppingAction::G4MSSteppingAction()
00042 {
00043   Initialize(false,0);
00044 }
00045 
00046 G4MSSteppingAction::~G4MSSteppingAction()
00047 {;}
00048  
00049 void G4MSSteppingAction::Initialize(G4bool rSens,G4Region* reg)
00050 {
00051   regionSensitive = rSens;
00052   theRegion = reg;
00053   length = 0.;
00054   x0 = 0.;
00055   lambda = 0.;
00056 }
00057   
00058 void G4MSSteppingAction::UserSteppingAction(const G4Step* aStep)
00059 {
00060   G4StepPoint* preStepPoint = aStep->GetPreStepPoint();
00061   G4Region* region = preStepPoint->GetPhysicalVolume()->GetLogicalVolume()->GetRegion();
00062 
00063   if(regionSensitive && (region!=theRegion)) return;
00064 
00065   G4double stlen = aStep->GetStepLength();
00066   G4Material* material = preStepPoint->GetMaterial();
00067   length += stlen;
00068   x0 += stlen/(material->GetRadlen());
00069   lambda += stlen/(material->GetNuclearInterLength());
00070 }
00071 

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