#include <BaseEvtVtxGenerator.h>

Inheritance diagram for BaseEvtVtxGenerator:

Public Member Functions
	BaseEvtVtxGenerator (const edm::ParameterSet &)
virtual TMatrixD *	GetInvLorentzBoost ()=0
virtual HepMC::FourVector *	lastVertex ()
virtual HepMC::FourVector *	newVertex ()=0
virtual void	produce (edm::Event &, const edm::EventSetup &)
virtual	~BaseEvtVtxGenerator ()
Protected Member Functions
CLHEP::HepRandomEngine &	getEngine ()
Protected Attributes
TMatrixD *	boost_
double	fTimeOffset
HepMC::FourVector *	fVertex
Private Attributes
CLHEP::HepRandomEngine *	fEngine
edm::InputTag	sourceLabel

Detailed Description

Definition at line 28 of file BaseEvtVtxGenerator.h.

Constructor & Destructor Documentation

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

Definition at line 31 of file BaseEvtVtxGenerator.cc.

References Exception, fEngine, and edm::Service< T >::isAvailable().

        : fVertex(0), boost_(0), fTimeOffset(0), fEngine(0),
          sourceLabel(pset.getParameter<edm::InputTag>("src"))
{
   
/* No longer needed...

   // 1st of all, check on module_label - must be VtxSmeared !
   if ( pset.getParameter<string>("@module_label") != "VtxSmeared" )
   {
      throw cms::Exception("Configuration")
        << "Module has an invalid module label. "
           "The label of this module MUST be VtxSmeared.";
   }
*/
      
   Service<RandomNumberGenerator> rng;

   if ( ! rng.isAvailable()) {

     throw cms::Exception("Configuration")
       << "The BaseEvtVtxGenerator requires the RandomNumberGeneratorService\n"
          "which is not present in the configuration file.  You must add the service\n"
          "in the configuration file or remove the modules that require it.";
   }

   CLHEP::HepRandomEngine& engine = rng->getEngine();
   fEngine = &engine;

      
   produces<bool>(); 
}

BaseEvtVtxGenerator::~BaseEvtVtxGenerator ( ) [virtual]

Definition at line 64 of file BaseEvtVtxGenerator.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

CLHEP::HepRandomEngine & BaseEvtVtxGenerator::getEngine ( ) [protected]

Definition at line 96 of file BaseEvtVtxGenerator.cc.

References fEngine.

Referenced by BetafuncEvtVtxGenerator::BetafuncEvtVtxGenerator(), FlatEvtVtxGenerator::FlatEvtVtxGenerator(), GaussEvtVtxGenerator::GaussEvtVtxGenerator(), and BeamProfileVtxGenerator::setType().

{
   return *fEngine;
}

virtual TMatrixD* BaseEvtVtxGenerator::GetInvLorentzBoost ( ) [pure virtual]

Implemented in BeamProfileVtxGenerator, BetafuncEvtVtxGenerator, FlatEvtVtxGenerator, and GaussEvtVtxGenerator.

Referenced by produce().

virtual HepMC::FourVector* BaseEvtVtxGenerator::lastVertex ( ) [inline, virtual]

This method - and the comment - is a left-over from COBRA-OSCAR time : return the last generated event vertex. If no vertex has been generated yet, a NULL pointer is returned.

Definition at line 44 of file BaseEvtVtxGenerator.h.

References fVertex.

{ return fVertex; }

virtual HepMC::FourVector* BaseEvtVtxGenerator::newVertex ( ) [pure virtual]

Implemented in BeamProfileVtxGenerator, BetafuncEvtVtxGenerator, FlatEvtVtxGenerator, and GaussEvtVtxGenerator.

Referenced by produce().

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

Implements edm::EDProducer.

Definition at line 72 of file BaseEvtVtxGenerator.cc.

References edm::Event::getByLabel(), GetInvLorentzBoost(), newVertex(), edm::Event::put(), and sourceLabel.

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

   //HepMCEvt->LorentzBoost( 0., 142.e-6 );
   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 ) ;
      
   return ;
}