B5EmCalorimeterSD.cc

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// $Id: B5EmCalorimeterSD.cc 76474 2013-11-11 10:36:34Z gcosmo $
//
/// \file B5EmCalorimeterSD.cc
/// \brief Implementation of the B5EmCalorimeterSD class

#include "B5EmCalorimeterSD.hh"
#include "B5EmCalorimeterHit.hh"

#include "G4HCofThisEvent.hh"
#include "G4TouchableHistory.hh"
#include "G4Track.hh"
#include "G4Step.hh"
#include "G4SDManager.hh"
#include "G4ios.hh"

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B5EmCalorimeterSD::B5EmCalorimeterSD(G4String name)
: G4VSensitiveDetector(name), fHitsCollection(0), fHCID(-1)
{
    collectionName.insert("EMcalorimeterColl");
}

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B5EmCalorimeterSD::~B5EmCalorimeterSD()
{}

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void B5EmCalorimeterSD::Initialize(G4HCofThisEvent* hce)
{
    fHitsCollection 
      = new B5EmCalorimeterHitsCollection(SensitiveDetectorName,collectionName[0]);
    if (fHCID<0)
    { fHCID = G4SDManager::GetSDMpointer()->GetCollectionID(fHitsCollection); }
    hce->AddHitsCollection(fHCID,fHitsCollection);
    
    // fill calorimeter hits with zero energy deposition
    for (G4int i=0;i<80;i++)
    {
        B5EmCalorimeterHit* hit = new B5EmCalorimeterHit(i);
        fHitsCollection->insert(hit);
    }
}

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G4bool B5EmCalorimeterSD::ProcessHits(G4Step*step, G4TouchableHistory*)
{
    G4double edep = step->GetTotalEnergyDeposit();
    if (edep==0.) return true;
    
    G4TouchableHistory* touchable
      = (G4TouchableHistory*)(step->GetPreStepPoint()->GetTouchable());
    G4VPhysicalVolume* physical = touchable->GetVolume();
    G4int copyNo = physical->GetCopyNo();
    
    B5EmCalorimeterHit* hit = (*fHitsCollection)[copyNo];
    // check if it is first touch
    if (!(hit->GetLogV()))
    {
        // fill volume information
        hit->SetLogV(physical->GetLogicalVolume());
        G4AffineTransform transform 
          = touchable->GetHistory()->GetTopTransform();
        transform.Invert();
        hit->SetRot(transform.NetRotation());
        hit->SetPos(transform.NetTranslation());
    }
    // add energy deposition
    hit->AddEdep(edep);
    
    return true;
}

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