#include <RPCSimSimple.h>

Inheritance diagram for RPCSimSimple:

Public Member Functions
	RPCSimSimple (const edm::ParameterSet &config)

void	setRandomEngine (CLHEP::HepRandomEngine &eng)

void	simulate (const RPCRoll *roll, const edm::PSimHitContainer &rpcHits)

void	simulateNoise (const RPCRoll *)

	~RPCSimSimple ()

Public Member Functions inherited from RPCSim
const DigiSimLinks &	digiSimLinks () const

virtual void	fillDigis (int rollDetId, RPCDigiCollection &digis)

RPCSimSetUp *	getRPCSimSetUp ()

const RPCDigiSimLinks &	rpcDigiSimLinks () const

void	setRPCSimSetUp (RPCSimSetUp *setup)

virtual	~RPCSim ()

Private Member Functions
void	init ()

Private Attributes
RPCSynchronizer *	_rpcSync

CLHEP::RandFlat *	flatDistribution1

CLHEP::RandFlat *	flatDistribution2

double	gate

int	N_hits

int	nbxing

CLHEP::RandPoissonQ *	poissonDistribution

double	rate

Additional Inherited Members
Public Types inherited from RPCSim
typedef edm::DetSet < StripDigiSimLink >	DigiSimLinks

typedef edm::DetSet < RPCDigiSimLink >	RPCDigiSimLinks

Protected Types inherited from RPCSim
typedef std::multimap < std::pair< unsigned int, int > , const PSimHit *, std::less < std::pair< unsigned int, int > > >	DetectorHitMap

Protected Member Functions inherited from RPCSim
virtual void	addLinks (unsigned int strip, int bx)

	RPCSim (const edm::ParameterSet &config)

Protected Attributes inherited from RPCSim
std::set< std::pair< int, int > >	strips

DetectorHitMap	theDetectorHitMap

DigiSimLinks	theDigiSimLinks

RPCDigiSimLinks	theRpcDigiSimLinks

RPCSimSetUp *	theSimSetUp

Detailed Description

Class for the RPC strip response simulation based on a very simple model

Author: Marcello Maggi – INFN Bari

Definition at line 21 of file RPCSimSimple.h.

Constructor & Destructor Documentation

RPCSimSimple::RPCSimSimple ( const edm::ParameterSet & config )

Definition at line 28 of file RPCSimSimple.cc.

References _rpcSync, gate, edm::ParameterSet::getParameter(), nbxing, and rate.

                                                         : RPCSim(config){
 
   rate=config.getParameter<double>("Rate");
   nbxing=config.getParameter<int>("Nbxing");
   gate=config.getParameter<double>("Gate");
 
   _rpcSync = new RPCSynchronizer(config);
 }

RPCSimSimple::~RPCSimSimple ( )

Definition at line 45 of file RPCSimSimple.cc.

References _rpcSync, flatDistribution1, flatDistribution2, and poissonDistribution.

                            {
   delete flatDistribution1;
   delete flatDistribution2;
   delete poissonDistribution;
   delete _rpcSync;
 }

Member Function Documentation

void RPCSimSimple::init ( void )

inlineprivatevirtual

Implements RPCSim.

Definition at line 35 of file RPCSimSimple.h.

35 {};

void RPCSimSimple::setRandomEngine ( CLHEP::HepRandomEngine & eng )

virtual

Implements RPCSim.

Definition at line 37 of file RPCSimSimple.cc.

References _rpcSync, flatDistribution1, flatDistribution2, poissonDistribution, and RPCSynchronizer::setRandomEngine().

                                                            {
   flatDistribution1 = new CLHEP::RandFlat(eng);
   flatDistribution2 = new CLHEP::RandFlat(eng);
   poissonDistribution = new CLHEP::RandPoissonQ(eng);
   _rpcSync->setRandomEngine(eng);
 }

void RPCSimSimple::simulate	(	const RPCRoll *	roll,
		const edm::PSimHitContainer &	rpcHits
	)

virtual

Implements RPCSim.

Definition at line 54 of file RPCSimSimple.cc.

References _rpcSync, edm::DetSet< T >::clear(), RPCSim::getRPCSimSetUp(), RPCSynchronizer::getSimHitBx(), RPCRoll::id(), DetId::rawId(), RPCSynchronizer::setRPCSimSetUp(), RPCRoll::specs(), RPCSim::strips, RPCSim::theDetectorHitMap, RPCSim::theRpcDigiSimLinks, and RPCRollSpecs::topology().

 {
   _rpcSync->setRPCSimSetUp(getRPCSimSetUp());
   theRpcDigiSimLinks.clear();
   theDetectorHitMap.clear();
   theRpcDigiSimLinks = RPCDigiSimLinks(roll->id().rawId());
 
   const Topology& topology=roll->specs()->topology();
   for (edm::PSimHitContainer::const_iterator _hit = rpcHits.begin();
        _hit != rpcHits.end(); ++_hit){
 
  
     // Here I hould check if the RPC are up side down;
     const LocalPoint& entr=_hit->entryPoint();
     int time_hit = _rpcSync->getSimHitBx(&(*_hit));
     //    const LocalPoint& exit=_hit->exitPoint();
     
     std::pair<int, int> digi(topology.channel(entr)+1,
                  time_hit);
 
     theDetectorHitMap.insert(DetectorHitMap::value_type(digi,&(*_hit)));
     strips.insert(digi);
   }
 }

void RPCSimSimple::simulateNoise ( const RPCRoll * roll )

virtual

Implements RPCSim.

Definition at line 81 of file RPCSimSimple.cc.

References compareJSON::const, flatDistribution1, flatDistribution2, gate, i, RPCRoll::id(), RectangularStripTopology::localPosition(), TrapezoidalStripTopology::localPosition(), N_hits, nbxing, RPCRoll::nstrips(), poissonDistribution, rate, RPCDetId::region(), strip(), RectangularStripTopology::stripLength(), TrapezoidalStripTopology::stripLength(), RPCSim::strips, RPCRoll::topology(), and ExpressReco_HICollisions_FallBack::x.

 {
 
   RPCDetId rpcId = roll->id();
   int nstrips = roll->nstrips();
   double area = 0.0;
   
   if ( rpcId.region() == 0 )
     {
       const RectangularStripTopology* top_ = dynamic_cast<const
     RectangularStripTopology*>(&(roll->topology()));
       float xmin = (top_->localPosition(0.)).x();
       float xmax = (top_->localPosition((float)roll->nstrips())).x();
       float striplength = (top_->stripLength());
       area = striplength*(xmax-xmin);
     }
   else
     {
       const TrapezoidalStripTopology* top_=dynamic_cast<const TrapezoidalStripTopology*>(&(roll->topology()));
       float xmin = (top_->localPosition(0.)).x();
       float xmax = (top_->localPosition((float)roll->nstrips())).x();
       float striplength = (top_->stripLength());
       area = striplength*(xmax-xmin);
     }
   
   double ave = rate*nbxing*gate*area*1.0e-9;
 
   N_hits = poissonDistribution->fire(ave);
 
   for (int i = 0; i < N_hits; i++ ){
     int strip = static_cast<int>(flatDistribution1->fire(1, nstrips));
     int time_hit;
     time_hit = (static_cast<int>(flatDistribution2->fire((nbxing*gate)/gate))) - nbxing/2;
     std::pair<int, int> digi(strip,time_hit);
     strips.insert(digi);
   }
 }