#include <CastorShowerLibrary.h>

Public Member Functions
	CastorShowerLibrary (const std::string &name, edm::ParameterSet const &p)

int	FindEnergyBin (double)

int	FindEtaBin (double)

int	FindPhiBin (double)

CastorShowerEvent	getShowerHits (const G4Step *, bool &)

	~CastorShowerLibrary ()

Protected Member Functions
void	getRecord (int, int)

void	initFile (edm::ParameterSet const &)

void	loadEventInfo (TBranchObject *)

void	select (int, double, double=0, double=9)

Private Attributes
TBranchObject *	emBranch

CastorShowerLibraryInfo *	eventInfo

TBranchObject *	evtInfo

unsigned int	evtPerBin

TBranchObject *	hadBranch

TFile *	hf

unsigned int	nBinsE

unsigned int	nBinsEta

unsigned int	nBinsPhi

unsigned int	nEvtPerBinE

unsigned int	nEvtPerBinEta

unsigned int	nEvtPerBinPhi

unsigned int	nMomBin

std::vector< double >	pmom

CastorShowerEvent *	showerEvent

std::vector< double >	SLenergies

std::vector< double >	SLetas

std::vector< double >	SLphis

unsigned int	totEvents

bool	verbose

Detailed Description

Definition at line 28 of file CastorShowerLibrary.h.

Constructor & Destructor Documentation

CastorShowerLibrary::CastorShowerLibrary	(	const std::string &	name,
		edm::ParameterSet const &	p
	)

Definition at line 30 of file CastorShowerLibrary.cc.

References initFile().

   : hf(nullptr), evtInfo(nullptr), emBranch(nullptr), hadBranch(nullptr),
     nMomBin(0), totEvents(0), evtPerBin(0),
     nBinsE(0),nBinsEta(0),nBinsPhi(0),
     nEvtPerBinE(0),nEvtPerBinEta(0),nEvtPerBinPhi(0),
     SLenergies(),SLetas(),SLphis() {
   
   initFile(p);  
 }

CastorShowerLibrary::~CastorShowerLibrary ( )

Definition at line 42 of file CastorShowerLibrary.cc.

References hf.

                                           {
   if (hf)     hf->Close();
 }

Member Function Documentation

int CastorShowerLibrary::FindEnergyBin ( double energy )

Definition at line 301 of file CastorShowerLibrary.cc.

References mps_fire::i, and SLenergies.

Referenced by select().

                                                     {
   //
   // returns the integer index of the energy bin, taken from SLenergies vector
   // returns -1 if ouside valid range
   //
   if (energy >= SLenergies.back()) return SLenergies.size()-1;
 
   unsigned int i = 0;
   for(;i<SLenergies.size()-1;i++)
     if (energy >= SLenergies.at(i) && energy < SLenergies.at(i+1)) return (int)i;
 
   // now i points to the last but 1 bin
   if (energy>=SLenergies.at(i)) return (int)i;
   // energy outside bin range
   return -1;
 }

int CastorShowerLibrary::FindEtaBin ( double eta )

Definition at line 320 of file CastorShowerLibrary.cc.

References mps_fire::i, and SLetas.

Referenced by select().

                                               {
   //
   // returns the integer index of the eta bin, taken from SLetas vector
   // returns -1 if ouside valid range
   //
   if (eta>=SLetas.back()) return SLetas.size()-1;
   unsigned int i = 0;
   for(;i<SLetas.size()-1;i++)
      if (eta >= SLetas.at(i) && eta < SLetas.at(i+1)) return (int)i;
   // now i points to the last but 1 bin
   if (eta>=SLetas.at(i)) return (int)i;
   // eta outside bin range
   return -1;
 }

int CastorShowerLibrary::FindPhiBin ( double phi )

Definition at line 337 of file CastorShowerLibrary.cc.

References mps_fire::i, and SLphis.

Referenced by select().

                                               {
   //
   // returns the integer index of the phi bin, taken from SLphis vector
   // returns -1 if ouside valid range
   //
   // needs protection in case phi is outside range -pi,pi
   //
   if (phi>=SLphis.back()) return SLphis.size()-1;
   unsigned int i = 0;
   for(;i<SLphis.size()-1;i++)
      if (phi >= SLphis.at(i) && phi < SLphis.at(i+1)) return (int)i;
   // now i points to the last but 1 bin
   if (phi>=SLphis.at(i)) return (int)i;
   // phi outside bin range
   return -1;
 }

void CastorShowerLibrary::getRecord	(	int	type,
		int	record
	)

protected

Definition at line 205 of file CastorShowerLibrary.cc.

References emBranch, CastorShowerEvent::getNhit(), hadBranch, LogDebug, record, and showerEvent.

Referenced by select().

                                                         {
 //
 //  Retrieve event # "record" from the library and stores it   
 //  into  vector<CastorShowerHit> showerHit;
 //
 //  Based on HFShowerLibrary::getRecord
 //
 //  Modified 02/02/09 by W. Carvalho
 //
 
 #ifdef DebugLog
   LogDebug("CastorShower") << "CastorShowerLibrary::getRecord: ";
 #endif  
   int nrc  = record;
   showerEvent = new CastorShowerEvent();
   if (type > 0) {
     hadBranch->SetAddress(&showerEvent);
     hadBranch->GetEntry(nrc);
   } else {
     emBranch->SetAddress(&showerEvent);
     emBranch->GetEntry(nrc);
   }
 
 #ifdef DebugLog
   int nHit = showerEvent->getNhit();
   LogDebug("CastorShower") << "CastorShowerLibrary::getRecord: Record " << record
                    << " of type " << type << " with " << nHit 
                    << " CastorShowerHits";
 
 #endif
 
 }

CastorShowerEvent CastorShowerLibrary::getShowerHits	(	const G4Step *	aStep,
		bool &	ok
	)

Definition at line 165 of file CastorShowerLibrary.cc.

References funct::abs(), CastorShowerEvent::Clear(), G4TrackToParticleID::isGammaElectronPositron(), G4TrackToParticleID::isStableHadronIon(), cmsBatch::log, pi, dttmaxenums::R, select(), mathSSE::sqrt(), funct::tan(), theta(), and HiIsolationCommonParameters_cff::track.

Referenced by CastorSD::getFromLibrary().

                                                                                     {
 
   G4StepPoint * preStepPoint  = aStep->GetPreStepPoint(); 
   G4Track *     track         = aStep->GetTrack();
 
   const G4ThreeVector& hitPoint = preStepPoint->GetPosition();   
 
   CastorShowerEvent hit;
   hit.Clear();
   
   ok = false;
   bool isEM = G4TrackToParticleID::isGammaElectronPositron(track);
   if (!isEM && !G4TrackToParticleID::isStableHadronIon(track)) { 
     return hit;
   }
   ok = true;
 
   double pin  = preStepPoint->GetTotalEnergy();
   double zint = hitPoint.z();
   double R=sqrt(hitPoint.x()*hitPoint.x() + hitPoint.y()*hitPoint.y());
   double theta = atan2(R,std::abs(zint));
   double phiin = atan2(hitPoint.y(),hitPoint.x());
   double etain = -std::log(std::tan((CLHEP::pi-theta)*0.5));
 
   // Replace "interpolation/extrapolation" by new method "select" that just randomly 
   // selects a record from the appropriate energy bin and fills its content to  
   // "showerEvent" instance of class CastorShowerEvent
   
   if (isEM) {
     select(0, pin, etain, phiin);
   } else {
     select(1, pin, etain, phiin);
   }
     
   hit = (*showerEvent);
   return hit;
 }

void CastorShowerLibrary::initFile ( edm::ParameterSet const & p )

protected

Definition at line 49 of file CastorShowerLibrary.cc.

References emBranch, evtInfo, Exception, edm::ParameterSet::getParameter(), edm::ParameterSet::getUntrackedParameter(), hadBranch, hf, loadEventInfo(), and AlCaHLTBitMon_QueryRunRegistry::string.

Referenced by CastorShowerLibrary().

                                                             {
 //
 //  Init TFile and associated TBranch's of CASTOR Root file 
 //  holding library events 
 //
 
   //
   //  Read PSet for Castor shower library
   //
 
   edm::ParameterSet m_CS   = p.getParameter<edm::ParameterSet>("CastorShowerLibrary");
   edm::FileInPath fp       = m_CS.getParameter<edm::FileInPath>("FileName");
   std::string pTreeName    = fp.fullPath();
   std::string branchEvInfo = m_CS.getUntrackedParameter<std::string>("BranchEvt");
   std::string branchEM     = m_CS.getUntrackedParameter<std::string>("BranchEM");
   std::string branchHAD    = m_CS.getUntrackedParameter<std::string>("BranchHAD");
   verbose                  = m_CS.getUntrackedParameter<bool>("Verbosity",false);
 
   // Open TFile 
   if (pTreeName.find(".") == 0) pTreeName.erase(0,2);
   const char* nTree = pTreeName.c_str();
   hf                = TFile::Open(nTree);
 
   // Check that TFile has been successfully opened
   if (!hf->IsOpen()) { 
      edm::LogError("CastorShower") << "CastorShowerLibrary: opening " << nTree << " failed";
      throw cms::Exception("Unknown", "CastorShowerLibrary") 
                                    << "Opening of " << pTreeName << " fails\n";
   } else {
      edm::LogInfo("CastorShower")  << "CastorShowerLibrary: opening " << nTree << " successfully"; 
   }
 
   // Check for the TBranch holding EventInfo in "Events" TTree
   TTree* event = (TTree *) hf ->Get("CastorCherenkovPhotons");
   if (event) {
      evtInfo = (TBranchObject *) event->GetBranch(branchEvInfo.c_str());
      if (evtInfo) {
         loadEventInfo(evtInfo);
      } else {
         edm::LogError("CastorShower") << "CastorShowerLibrary: " << branchEvInfo.c_str()
                                       << " Branch does not exit in Event";
         throw cms::Exception("Unknown", "CastorShowerLibrary") << "Event information absent\n";
      }
   } else {
      edm::LogError("CastorShower") << "CastorShowerLibrary: Events Tree does not exist";
      throw cms::Exception("Unknown", "CastorShowerLibrary") << "Events tree absent\n";
   }
   
   // Get EM and HAD Branchs
   emBranch         = (TBranchObject *) event->GetBranch(branchEM.c_str());
   if (verbose) emBranch->Print();
   hadBranch        = (TBranchObject *) event->GetBranch(branchHAD.c_str());
   if (verbose) hadBranch->Print();
   edm::LogInfo("CastorShower") << "CastorShowerLibrary: Branch " << branchEM 
                    << " has " << emBranch->GetEntries() 
                    << " entries and Branch " << branchHAD 
                    << " has " << hadBranch->GetEntries() 
                    << " entries";
 
 }

void CastorShowerLibrary::loadEventInfo ( TBranchObject * branch )

protected

Definition at line 114 of file CastorShowerLibrary.cc.

References CastorShowerLibraryInfo::Energy, CastorShowerLibraryInfo::Eta, eventInfo, SLBin::getBin(), SLBin::getNBins(), SLBin::getNEvtPerBin(), SLBin::getNEvts(), GeV, mps_fire::i, nBinsE, nBinsEta, nBinsPhi, nEvtPerBinE, nEvtPerBinEta, nEvtPerBinPhi, CastorShowerLibraryInfo::Phi, SLenergies, SLetas, SLphis, and totEvents.

Referenced by initFile().

                                                              {
 //
 //  Get EventInfo from the "TBranch* branch" of Root file 
 //  holding library events 
 //
 //  Based on HFShowerLibrary::loadEventInfo
 //
 
   eventInfo = new CastorShowerLibraryInfo();
   branch->SetAddress(&eventInfo);
   branch->GetEntry(0);
   // Initialize shower library general parameters
 
   totEvents   = eventInfo->Energy.getNEvts();
   nBinsE        = eventInfo->Energy.getNBins();
   nEvtPerBinE   = eventInfo->Energy.getNEvtPerBin();
   SLenergies    = eventInfo->Energy.getBin();
   nBinsEta      = eventInfo->Eta.getNBins();
   nEvtPerBinEta = eventInfo->Eta.getNEvtPerBin();
   SLetas        = eventInfo->Eta.getBin();
   nBinsPhi      = eventInfo->Phi.getNBins();
   nEvtPerBinPhi = eventInfo->Phi.getNEvtPerBin();
   SLphis        = eventInfo->Phi.getBin();
   
   // Convert from GeV to MeV
   for (unsigned int i=0; i<SLenergies.size(); i++) { SLenergies[i] *= CLHEP::GeV; }
   
   edm::LogInfo("CastorShower") << " CastorShowerLibrary::loadEventInfo : " 
                    << "\n \n Total number of events     :  " << totEvents 
                    <<    "\n   Number of bins  (E)       :  " << nBinsE
                    <<    "\n   Number of events/bin (E)  :  " << nEvtPerBinE
                    <<    "\n   Number of bins  (Eta)       :  " << nBinsEta
                    <<    "\n   Number of events/bin (Eta)  :  " << nEvtPerBinEta 
                    <<    "\n   Number of bins  (Phi)       :  " << nBinsPhi
                    <<    "\n   Number of events/bin (Phi)  :  " << nEvtPerBinPhi << "\n";
   
   for (unsigned int i=0; i<nBinsE; i++)
      edm::LogInfo("CastorShower") << "CastorShowerLibrary: SLenergies[" << i << "] = "
                       << SLenergies[i]/CLHEP::GeV << " GeV";
   for (unsigned int i=0; i<nBinsEta; i++)
      edm::LogInfo("CastorShower") << "CastorShowerLibrary: SLetas[" << i << "] = "
                       << SLetas[i];
   for (unsigned int i=0; i<nBinsPhi; i++)
      edm::LogInfo("CastorShower") << "CastorShowerLibrary: SLphis[" << i << "] = "
                       << SLphis[i] << " rad";
 }

void CastorShowerLibrary::select	(	int	type,
		double	pin,
		double	etain = `0`,
		double	phiin = `9`
	)

protected

Definition at line 242 of file CastorShowerLibrary.cc.

References FindEnergyBin(), FindEtaBin(), FindPhiBin(), getRecord(), createfilelist::int, M_PI, nEvtPerBinE, nEvtPerBinEta, nEvtPerBinPhi, AlignmentTrackSelector_cfi::phiMax, AlignmentTrackSelector_cfi::phiMin, and alignCSCRings::r.

Referenced by getShowerHits().

                                                                                  {
 //
 //  Selects an event from the library based on 
 //
 //    type:   0 --> em
 //           >0 --> had
 //    pin  :  momentum
 //    etain:  eta (if not given, disregard the eta binning
 //    phiin:  phi (if not given, disregard the phi binning
 //
 //  Created 30/01/09 by W. Carvalho
 //
 
   int irec;                         // to hold record number
   double r = G4UniformRand();       // to randomly select within an energy bin (r=[0,1])
 
   // Randomly select a record from the right energy bin in the library, 
   // based on track momentum (pin) 
    
   int ienergy = FindEnergyBin(pin);
   int ieta    = FindEtaBin(etain);
 #ifdef DebugLog
   if (verbose) edm::LogInfo("CastorShower") << " ienergy = " << ienergy ;
   if (verbose) edm::LogInfo("CastorShower") << " ieta = " << ieta;
 #endif
 
   int iphi;
   const double phiMin = 0.;
   const double phiMax = M_PI/4.;     // 45 * (pi/180)  rad 
   if(phiin < phiMin) phiin = phiin + M_PI ;
   if(phiin >= phiMin && phiin < phiMax) {
      iphi = FindPhiBin(phiin) ;
   } else {
      double remainder = fmod(phiin, phiMax) ;
      phiin = phiMin + remainder ;
      iphi = FindPhiBin(phiin) ;
   }
 #ifdef DebugLog
   if (verbose) edm::LogInfo("CastorShower") << " iphi = " << iphi;
 #endif
   if (ienergy==-1) ienergy=0;    // if pin < first bin, choose an event in the first one
   if (ieta==-1)    ieta=0; // idem for eta
   if (iphi!=-1) irec = int(nEvtPerBinE*ienergy+nEvtPerBinEta*ieta+nEvtPerBinPhi*(iphi+r));
   else irec = int(nEvtPerBinE*(ienergy+r));
 
 #ifdef DebugLog
   edm::LogInfo("CastorShower") << "CastorShowerLibrary:: Select record " << irec 
                                << " of type " << type ; 
 #endif
 
   //  Retrieve record number "irec" from the library
   getRecord (type, irec);
   
 }