iGeant4::ISFG4Helper Class Reference

#include <ISFG4Helper.h>

Collaboration diagram for iGeant4::ISFG4Helper:

Public Member Functions
	ISFG4Helper ()=delete

Static Public Member Functions
static ISF::ISFParticle *	convertG4TrackToISFParticle (const G4Track &aTrack, const ISF::ISFParticle &parent, ISF::TruthBinding *truth=nullptr)
	convert the given G4Track into an ISFParticle More...
static VTrackInformation *	getISFTrackInfo (const G4Track &aTrack)
	return a valid UserInformation object of the G4Track for use within the ISF More...
static void	setG4TrackInfoFromBaseISFParticle (G4Track &aTrack, const ISF::ISFParticle &baseIsp, bool setReturnToISF=false)
	link the given G4Track to the given ISFParticle More...
static TrackInformation *	attachTrackInfoToNewG4Track (G4Track &aTrack, ISF::ISFParticle &baseIsp, VTrackInformation::TrackClassification classification, HepMC::GenParticlePtr generationZeroGenParticle=nullptr)
	attach a new TrackInformation object to the given new (!) G4Track (the G4Track must not have a UserInformation object attached to it) More...
static AtlasG4EventUserInfo *	getAtlasG4EventUserInfo ()
	return pointer to current AtlasG4EventUserInfo More...

Detailed Description

Definition at line 25 of file ISFG4Helper.h.

Constructor & Destructor Documentation

ISFG4Helper()

iGeant4::ISFG4Helper::ISFG4Helper ( )

delete

Member Function Documentation

attachTrackInfoToNewG4Track()

TrackInformation * iGeant4::ISFG4Helper::attachTrackInfoToNewG4Track ( G4Track &  aTrack, ISF::ISFParticle &  baseIsp, VTrackInformation::TrackClassification  classification, HepMC::GenParticlePtr  generationZeroGenParticle = nullptr  )

static

attach a new TrackInformation object to the given new (!) G4Track (the G4Track must not have a UserInformation object attached to it)

link the given G4Track to the given ISFParticle

Definition at line 78 of file ISFG4Helper.cxx.

{
  if ( aTrack.GetUserInformation() ) {
    G4ExceptionDescription description;
    description << G4String("ISFG4Helper::attachTrackInfoToNewG4Track: ")
                << "Trying to attach new TrackInformation object to G4Track which already has a TrackUserInformation attached (trackID: "
                << aTrack.GetTrackID() << ", track pos: "<<aTrack.GetPosition() << ", mom: "<<aTrack.GetMomentum()
                << ", parentID " << aTrack.GetParentID() << ")";
    G4Exception("ISFG4Helper::attachTrackInfoToNewG4Track", "TrackUserInformationAlreadyExists", FatalException, description);
    return nullptr;
  }
 
  auto* truthBinding = baseIsp.getTruthBinding();
  if ( !truthBinding ) {
    G4ExceptionDescription description;
    description << G4String("ISFG4Helper::attachTrackInfoToNewG4Track: ")
                << "No TruthBinding present in base ISFParticle (trackID: "
                << aTrack.GetTrackID() << ", track pos: "<<aTrack.GetPosition() << ", mom: "<<aTrack.GetMomentum()
                << ", parentID " << aTrack.GetParentID() << ", ISFParticle: "<<baseIsp<<")";
    G4Exception("ISFG4Helper::attachTrackInfoToNewG4Track", "NoISFTruthBinding", FatalException, description);
    return nullptr;
  }
 
  TrackInformation *trackInfo = new TrackInformation( generationZeroGenParticle, &baseIsp );
  trackInfo->SetPrimaryGenParticle( truthBinding->getPrimaryGenParticle() );
  trackInfo->SetClassification( classification );
  aTrack.SetUserInformation( trackInfo );
 
  return trackInfo;
}

convertG4TrackToISFParticle()

ISF::ISFParticle * iGeant4::ISFG4Helper::convertG4TrackToISFParticle ( const G4Track &  aTrack, const ISF::ISFParticle &  parent, ISF::TruthBinding *  truth = nullptr  )

static

convert the given G4Track into an ISFParticle

Definition at line 31 of file ISFG4Helper.cxx.

{
  const G4ThreeVector& g4pos = aTrack.GetPosition();
  const double         gTime = aTrack.GetGlobalTime();
  const Amg::Vector3D  position(g4pos.x(),g4pos.y(),g4pos.z());
 
  const G4ThreeVector& g4mom = aTrack.GetMomentum();
  const Amg::Vector3D  momentum(g4mom.x(),g4mom.y(),g4mom.z());
 
  const G4ParticleDefinition &particleDefinition = *aTrack.GetDefinition();
  double mass    = particleDefinition.GetPDGMass();
  double charge  = particleDefinition.GetPDGCharge();
  int    pdgID   = particleDefinition.GetPDGEncoding();
 
  int barcode = (truth && truth->getCurrentGenParticle() ) ?  HepMC::barcode(truth->getCurrentGenParticle()) : HepMC::UNDEFINED_ID; // FIXME barcode-based
  const int id = (truth && truth->getCurrentGenParticle() ) ? HepMC::uniqueID(truth->getCurrentGenParticle()) : HepMC::UNDEFINED_ID;
  const int status = (truth && truth->getCurrentGenParticle() ) ? truth->getCurrentGenParticle()->status() : 1;
  ISF::ISFParticle *isp = new ISF::ISFParticle( position,
                                                momentum,
                                                mass,
                                                charge,
                                                pdgID,
                                                status,
                                                gTime,
                                                parent,
                                                id,
                                                barcode, // FIXME barcode-based
                                                truth
                                               );
 
  return isp;
}

getAtlasG4EventUserInfo()

AtlasG4EventUserInfo * iGeant4::ISFG4Helper::getAtlasG4EventUserInfo ( )

static

return pointer to current AtlasG4EventUserInfo

Definition at line 114 of file ISFG4Helper.cxx.

{
  return ( static_cast<AtlasG4EventUserInfo*> (G4EventManager::GetEventManager()->GetConstCurrentEvent()->GetUserInformation()) );
}

getISFTrackInfo()

VTrackInformation * iGeant4::ISFG4Helper::getISFTrackInfo ( const G4Track &  aTrack )

static

return a valid UserInformation object of the G4Track for use within the ISF

Definition at line 69 of file ISFG4Helper.cxx.

{
  VTrackInformation* trackInfo = static_cast<VTrackInformation*>(aTrack.GetUserInformation());
  return trackInfo;
}

setG4TrackInfoFromBaseISFParticle()

static void iGeant4::ISFG4Helper::setG4TrackInfoFromBaseISFParticle ( G4Track &  aTrack, const ISF::ISFParticle &  baseIsp, bool  setReturnToISF = false  )

static

link the given G4Track to the given ISFParticle

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

• ISFG4Helper.h
• ISFG4Helper.cxx