30     phg4inevent = thisNode->
getData();
 
   34     map<int, PHG4VtxPoint *>::const_iterator vtxiter;
 
   35     multimap<int, PHG4Particle *>::const_iterator particle_iter;
 
   36     std::pair<std::map<int, PHG4VtxPoint *>::const_iterator, std::map<int, PHG4VtxPoint *>::const_iterator> vtxbegin_end = phg4inevent->
GetVertices();
 
   38     for (vtxiter = vtxbegin_end.first; vtxiter != vtxbegin_end.second; ++vtxiter)
 
   40       *
fout << 
"vtx number: " << vtxiter->first << endl;
 
   41       (*vtxiter->second).identify(*
fout);
 
   42       pair<multimap<int, PHG4Particle *>::const_iterator, multimap<int, PHG4Particle *>::const_iterator> particlebegin_end = phg4inevent->
GetParticles(vtxiter->first);
 
   43       for (particle_iter = particlebegin_end.first; particle_iter != particlebegin_end.second; ++particle_iter)
 
   45         (particle_iter->second)->identify(*
fout);