extended/exoticphysics/channeling/src/SensitiveDetector.cc

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#include "SensitiveDetector.hh"
#include "SensitiveDetectorHit.hh"
#include "G4HCofThisEvent.hh"
#include "G4TouchableHistory.hh"
#include "G4Track.hh"
#include "G4Step.hh"
#include "G4SDManager.hh"
#include "G4Navigator.hh"
#include "G4ios.hh"

SensitiveDetector::SensitiveDetector(G4String name):
G4VSensitiveDetector(name){
    G4String HCname;
    collectionName.insert(HCname="collection");
    fHCID = -1;
}

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SensitiveDetector::~SensitiveDetector(){
}

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void SensitiveDetector::Initialize(G4HCofThisEvent*HCE){
    fHitsCollection =
        new SensitiveDetectorHitsCollection(SensitiveDetectorName,
                                                        collectionName[0]);
    if(fHCID<0){
        fHCID = G4SDManager::GetSDMpointer()->GetCollectionID(fHitsCollection);
    }
    HCE->AddHitsCollection(fHCID,fHitsCollection);
}

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G4bool SensitiveDetector::ProcessHits(G4Step*aStep,
                                                  G4TouchableHistory*){

    if(aStep->GetTrack()->GetTrackID()>1) return true;
    
    G4StepPoint* postStepPoint = aStep->GetPostStepPoint();
    if(!(postStepPoint->GetStepStatus() == fGeomBoundary)) return true;
    
    G4StepPoint* preStepPoint = aStep->GetPreStepPoint();

    G4TouchableHistory* theTouchable =
        (G4TouchableHistory*)(preStepPoint->GetTouchable());
    G4VPhysicalVolume* thePhysical = theTouchable->GetVolume(0);
    G4int copyNo = thePhysical->GetCopyNo();

    G4ThreeVector worldPos = preStepPoint->GetPosition();
    
    SensitiveDetectorHit* aHit =
        new SensitiveDetectorHit(copyNo);
    aHit->SetLayerID(copyNo);
    aHit->SetWorldPos(worldPos);
    
    fHitsCollection->insert(aHit);
    return true;
}

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void SensitiveDetector::EndOfEvent(G4HCofThisEvent* /*HCE*/){
}

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