Inheritance diagram for larg4::UpdateDaughterInformation:

Public Member Functions
	UpdateDaughterInformation ()

void	SetParticleList (sim::ParticleList *p)

void	operator() (sim::ParticleList::value_type &particleListEntry)

Private Attributes
sim::ParticleList *	particleList

Detailed Description

Utility class for the EndOfEventAction method: update the daughter relationships in the particle list.

Definition at line 403 of file ParticleListAction.cxx.

Constructor & Destructor Documentation

larg4::UpdateDaughterInformation::UpdateDaughterInformation ( )

inline

Definition at line 407 of file ParticleListAction.cxx.

408 : particleList(0)

409 {}

larg4::UpdateDaughterInformation::particleList

sim::ParticleList * particleList

Definition: ParticleListAction.cxx:446

Member Function Documentation

void larg4::UpdateDaughterInformation::operator() ( sim::ParticleList::value_type & particleListEntry )

inline

Definition at line 411 of file ParticleListAction.cxx.

References simb::MCParticle::AddDaughter().

     {
       // We're looking at this Particle in the list.
       int particleID = particleListEntry.first;
 
       // The parent ID of this particle;
       // we ask the particle list since the particle itself might have been lost
       // ("archived"), but the particle list still holds the information we need
       int parentID = particleList->GetMotherOf(particleID);
       
       // If the parentID <= 0, this is a primary particle.
       if ( parentID <= 0 ) return;
 
       // If we get here, this particle is somebody's daughter.  Add
       // it to the list of daughter particles for that parent.
 
       // Get the parent particle from the list.
       sim::ParticleList::iterator parentEntry = particleList->find( parentID );
 
       if ( parentEntry == particleList->end() ){
         // We have an "orphan": a particle whose parent isn't
         // recorded in the particle list.  This is not signficant;
         // it's possible for a particle not to be saved in the list
         // because it failed an energy cut, but for it to have a
         // daughter that passed the cut (e.g., a nuclear decay).
         return;
       }
       if ( !parentEntry->second ) return; // particle archived, nothing to update
 
       // Add the current particle to the daughter list of the
       // parent.
       simb::MCParticle* parent = (*parentEntry).second;
       parent->AddDaughter( particleID );
     }