Inheritance diagram for MixEvtVtxGenerator:

Public Member Functions
virtual HepMC::FourVector *	getRecVertex (edm::Event &)
virtual HepMC::FourVector *	getVertex (edm::Event &)
	MixEvtVtxGenerator (const edm::ParameterSet &)
virtual void	produce (edm::Event &, const edm::EventSetup &)
virtual	~MixEvtVtxGenerator ()
Protected Attributes
TMatrixD *	boost_
HepMC::FourVector *	fVertex
Private Attributes
edm::InputTag	hiLabel
edm::InputTag	signalLabel
bool	useRecVertex
std::vector< double >	vtxOffset

Detailed Description

Definition at line 35 of file MixEvtVtxGenerator.cc.

Constructor & Destructor Documentation

MixEvtVtxGenerator::MixEvtVtxGenerator ( const edm::ParameterSet & pset ) [explicit]

Definition at line 62 of file MixEvtVtxGenerator.cc.

References edm::ParameterSet::exists(), edm::ParameterSet::getParameter(), and vtxOffset.

        : fVertex(0), boost_(0),
          signalLabel(pset.getParameter<edm::InputTag>("signalLabel")),
          hiLabel(pset.getParameter<edm::InputTag>("heavyIonLabel")),
          useRecVertex(pset.exists("useRecVertex")?pset.getParameter<bool>("useRecVertex"):false)
          
{   
   produces<bool>("matchedVertex"); 
   vtxOffset.resize(3);
   if(pset.exists("vtxOffset")) vtxOffset=pset.getParameter< std::vector<double> >("vtxOffset");
}

MixEvtVtxGenerator::~MixEvtVtxGenerator ( ) [virtual]

Definition at line 74 of file MixEvtVtxGenerator.cc.

References boost_, and fVertex.

{
   delete fVertex ;
   if (boost_ != 0 ) delete boost_;
   // no need since now it's done in HepMCProduct
   // delete fEvt ;
}

Member Function Documentation

HepMC::FourVector * MixEvtVtxGenerator::getRecVertex ( edm::Event & evt ) [virtual]

Definition at line 115 of file MixEvtVtxGenerator.cc.

References fVertex, edm::Event::getByLabel(), hiLabel, collect_tpl::input, and vtxOffset.

Referenced by produce().

                                                            {

  Handle<reco::VertexCollection> input;
  evt.getByLabel(hiLabel,input);

  double aX,aY,aZ;

  aX = input->begin()->position().x() + vtxOffset[0];
  aY = input->begin()->position().y() + vtxOffset[1];
  aZ = input->begin()->position().z() + vtxOffset[2];

  /*
  std::cout << "reco::Vertex = " << input->begin()->position().x()
            << ", " << input->begin()->position().y()
            << ", " << input->begin()->position().z()
            << std::endl;

  std::cout << "offset = " << vtxOffset[0]
            << ", " << vtxOffset[1]
            << ", " << vtxOffset[2]
            << std::endl;

  std::cout << "embedded GEN vertex = " << aX
            << ", " << aY << ", " << aZ << std::endl;
  */
  
  if(!fVertex) fVertex = new HepMC::FourVector();
  fVertex->set(10.0*aX,10.0*aY,10.0*aZ,0.0); // HepMC positions in mm (RECO in cm)
  
  return fVertex;

}

HepMC::FourVector * MixEvtVtxGenerator::getVertex ( edm::Event & evt ) [virtual]

Definition at line 82 of file MixEvtVtxGenerator.cc.

References gather_cfg::cout, fVertex, edm::Event::getByLabel(), hiLabel, collect_tpl::input, and ExpressReco_HICollisions_FallBack::pt.

Referenced by produce().

                                                         {

  Handle<HepMCProduct> input;
  evt.getByLabel(hiLabel,input);

  const HepMC::GenEvent* inev = input->GetEvent();
  HepMC::GenVertex* genvtx = inev->signal_process_vertex();
  if(!genvtx){
    cout<<"No Signal Process Vertex!"<<endl;
    HepMC::GenEvent::particle_const_iterator pt=inev->particles_begin();
    HepMC::GenEvent::particle_const_iterator ptend=inev->particles_end();
    while(!genvtx || ( genvtx->particles_in_size() == 1 && pt != ptend ) ){
      if(!genvtx) cout<<"No Gen Vertex!"<<endl;
      if(pt == ptend) cout<<"End reached!"<<endl;
      genvtx = (*pt)->production_vertex();
      ++pt;
    }
  }
  double aX,aY,aZ,aT;

  aX = genvtx->position().x();
  aY = genvtx->position().y();
  aZ = genvtx->position().z();
  aT = genvtx->position().t();
  
  if(!fVertex) fVertex = new HepMC::FourVector();
  fVertex->set(aX,aY,aZ,aT);
  
  return fVertex;

}

void MixEvtVtxGenerator::produce	(	edm::Event &	evt,
		const edm::EventSetup &
	)		`[virtual]`

Implements edm::EDProducer.

Definition at line 148 of file MixEvtVtxGenerator.cc.

References edm::Event::getByLabel(), getRecVertex(), getVertex(), edm::Event::put(), signalLabel, and useRecVertex.

{
   
   
   Handle<HepMCProduct> HepMCEvt ;
   
   evt.getByLabel( signalLabel, HepMCEvt ) ;
   
   // generate new vertex & apply the shift 
   //

   HepMCEvt->applyVtxGen( useRecVertex ? getRecVertex(evt) : getVertex(evt) ) ;

   //   HepMCEvt->boostToLab( GetInvLorentzBoost(), "vertex" );
   //   HepMCEvt->boostToLab( GetInvLorentzBoost(), "momentum" );
   
   // OK, create a (pseudo)product and put in into edm::Event
   //
   auto_ptr<bool> NewProduct(new bool(true)) ;      
   evt.put( NewProduct ,"matchedVertex") ;
      
   return ;

}