G4UA::GeantFollower Class Reference

#include <GeantFollower.h>

Inheritance diagram for G4UA::GeantFollower:

Collaboration diagram for G4UA::GeantFollower:

Classes
struct	Config

Public Member Functions
	GeantFollower (const Config &config)
virtual void	BeginOfEventAction (const G4Event *) override
virtual void	EndOfEventAction (const G4Event *) override
virtual void	BeginOfRunAction (const G4Run *) override
virtual void	UserSteppingAction (const G4Step *) override

Private Attributes
Config	m_config
Trk::IGeantFollowerHelper *	m_helperPointer

Detailed Description

Definition at line 33 of file GeantFollower.h.

Constructor & Destructor Documentation

GeantFollower()

GeantFollower::GeantFollower

(

const Config &

config

)

Definition at line 25 of file GeantFollower.cxx.

    : m_config(config)
    , m_helperPointer(nullptr)
  {}

Member Function Documentation

BeginOfEventAction()

void GeantFollower::BeginOfEventAction ( const G4Event *  )

overridevirtual

Definition at line 30 of file GeantFollower.cxx.

  {
    m_helperPointer->beginEvent();
  }

BeginOfRunAction()

void GeantFollower::BeginOfRunAction ( const G4Run *  )

overridevirtual

Definition at line 40 of file GeantFollower.cxx.

  {
    if(m_config.helper.retrieve()!=StatusCode::SUCCESS)
      {
        G4ExceptionDescription description;
        description << "Cannot retrieve GeantFollower helper";
        G4Exception("GeantFollower", "GeantFollower1", FatalException, description);
        return;
      }
 
    m_helperPointer = (&(*m_config.helper));
 }

EndOfEventAction()

void GeantFollower::EndOfEventAction ( const G4Event *  )

overridevirtual

Definition at line 35 of file GeantFollower.cxx.

  {
    m_helperPointer->endEvent();
  }

UserSteppingAction()

void GeantFollower::UserSteppingAction ( const G4Step *  aStep )

overridevirtual

Definition at line 53 of file GeantFollower.cxx.

  {
    // kill secondaries
    if (aStep->GetTrack()->GetParentID())
      {
        aStep->GetTrack()->SetTrackStatus(fStopAndKill);
        return;
      }
 
    // get the prestep point and follow this guy
    G4StepPoint * g4PreStep  = aStep->GetPreStepPoint();
    G4ThreeVector g4Momentum = g4PreStep->GetMomentum();
    const G4ThreeVector& g4Position = g4PreStep->GetPosition();
 
    G4Track* g4Track = aStep->GetTrack();
    const G4DynamicParticle* g4DynParticle = g4Track->GetDynamicParticle();
 
    // the material information
    const G4TouchableHistory* touchHist = static_cast<const G4TouchableHistory*>(aStep->GetPreStepPoint()->GetTouchable());
    if(ATH_LIKELY(touchHist))
      {
        // G4LogicalVolume
        const G4LogicalVolume *lv= touchHist->GetVolume()->GetLogicalVolume();
        if(ATH_LIKELY(lv))
          {
            const G4Material *mat    = lv->GetMaterial();
            // the step information
            double steplength     = aStep->GetStepLength();
            // the position information
            double X0             = mat->GetRadlen();
            // update the track follower
            m_helperPointer->trackParticle(g4Position,g4Momentum,g4DynParticle->GetPDGcode(),g4DynParticle->GetCharge(),steplength,X0);
          }
        else
          {
            G4ExceptionDescription description;
            description << "GeantFollower::SteppingAction NULL G4LogicalVolume pointer.";
            G4Exception("GeantFollower", "GeantFollower2", FatalException, description);
          }
      }
    else
      {
        G4ExceptionDescription description;
        description << "GeantFollower::SteppingAction NULL G4TouchableHistory pointer.";
        G4Exception("GeantFollower", "GeantFollower3", FatalException, description);
      }
     }

Member Data Documentation

m_config

Config G4UA::GeantFollower::m_config

private

Definition at line 53 of file GeantFollower.h.

m_helperPointer

Trk::IGeantFollowerHelper* G4UA::GeantFollower::m_helperPointer

private

Definition at line 55 of file GeantFollower.h.

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The documentation for this class was generated from the following files:

• GeantFollower.h
• GeantFollower.cxx