#include <EcalTBMCInfoProducer.h>

Inheritance diagram for EcalTBMCInfoProducer:

Public Member Functions
	EcalTBMCInfoProducer (const edm::ParameterSet &ps)
	Constructor.
void	produce (edm::Event &event, const edm::EventSetup &eventSetup)
	Produce digis out of raw data.
virtual	~EcalTBMCInfoProducer ()
	Destructor.
Private Attributes
double	beamEta
double	beamPhi
double	beamTheta
double	beamXoff
double	beamYoff
int	crysNumber
CLHEP::RandFlat *	flatDistribution_
ROOT::Math::Rotation3D *	fromCMStoTB
std::string	GenVtxLabel
double	partXhodo
double	partYhodo
EcalTBCrystalMap *	theTestMap

Detailed Description

Definition at line 34 of file EcalTBMCInfoProducer.h.

Constructor & Destructor Documentation

EcalTBMCInfoProducer::EcalTBMCInfoProducer ( const edm::ParameterSet & ps )

Constructor.

Definition at line 19 of file EcalTBMCInfoProducer.cc.

References beamEta, beamPhi, beamTheta, beamXoff, beamYoff, funct::cos(), crysNumber, reco_application_tbsim_DetSim-Digi_cfg::CrystalMapFile, HLTFastRecoForTau_cff::deltaEta, SiPixelRawToDigiRegional_cfi::deltaPhi, eta(), Exception, funct::exp(), EcalTBCrystalMap::findCrystalAngles(), flatDistribution_, fromCMStoTB, GenVtxLabel, edm::ParameterSet::getParameter(), edm::ParameterSet::getUntrackedParameter(), edm::Service< T >::isAvailable(), EcalTBCrystalMap::NCRYSTAL, phi, funct::sin(), theTestMap, and xy().

                                                                    : flatDistribution_(0) {
  
  produces<PEcalTBInfo>();

  edm::FileInPath CrystalMapFile = ps.getParameter<edm::FileInPath>("CrystalMapFile");
  GenVtxLabel = ps.getUntrackedParameter<string>("moduleLabelVtx","source");
  double fMinEta = ps.getParameter<double>("MinEta");
  double fMaxEta = ps.getParameter<double>("MaxEta");
  double fMinPhi = ps.getParameter<double>("MinPhi");
  double fMaxPhi = ps.getParameter<double>("MaxPhi");
  beamEta = (fMaxEta+fMinEta)/2.;
  beamPhi = (fMaxPhi+fMinPhi)/2.;
  beamTheta = 2.0*atan(exp(-beamEta));
  beamXoff = ps.getParameter<double>("BeamMeanX");
  beamYoff = ps.getParameter<double>("BeamMeanX");
   
  string fullMapName = CrystalMapFile.fullPath();
  theTestMap = new EcalTBCrystalMap(fullMapName);
  crysNumber = 0;

  double deltaEta = 999.;
  double deltaPhi = 999.;
  for ( int cryIndex = 1; cryIndex <= EcalTBCrystalMap::NCRYSTAL; ++cryIndex) {
    double eta = 0;
    double phi = 0.;
    theTestMap->findCrystalAngles(cryIndex, eta, phi);
    if ( fabs(beamEta - eta) < deltaEta && fabs(beamPhi - phi) < deltaPhi ) {
      deltaEta = fabs(beamEta - eta);
      deltaPhi = fabs(beamPhi - phi);
      crysNumber = cryIndex;
    }
    else if (fabs(beamEta - eta)<deltaEta && fabs(beamPhi - phi)>deltaPhi ) {
      if ( fabs(beamPhi - phi) < 0.017 ) {
        deltaEta = fabs(beamEta - eta);
        deltaPhi = fabs(beamPhi - phi);
        crysNumber = cryIndex;
      }
    }
    else if (fabs(beamEta - eta)>deltaEta && fabs(beamPhi - phi)<deltaPhi ) {
      if ( fabs(beamEta - eta) < 0.017 ) {
        deltaEta = fabs(beamEta - eta);
        deltaPhi = fabs(beamPhi - phi);
        crysNumber = cryIndex;
      }
    }
  }

  edm::LogInfo("EcalTBInfo") << "Initialize TB MC ECAL info producer with parameters: \n"
                             << "Crystal map file:  " << CrystalMapFile << "\n"
                             << "Beam average eta = " << beamEta << "\n"
                             << "Beam average phi = " << beamPhi << "\n"
                             << "Corresponding to crystal number = " << crysNumber << "\n"
                             << "Beam X offset =    " << beamXoff << "\n"
                             << "Beam Y offset =    " << beamYoff;

  // rotation matrix to move from the CMS reference frame to the test beam one

  double xx = -cos(beamTheta)*cos(beamPhi);
  double xy = -cos(beamTheta)*sin(beamPhi);
  double xz = sin(beamTheta);
  
  double yx = sin(beamPhi);
  double yy = -cos(beamPhi);
  double yz = 0.;
  
  double zx = sin(beamTheta)*cos(beamPhi);
  double zy = sin(beamTheta)*sin(beamPhi);
  double zz = cos(beamTheta);

  fromCMStoTB = new ROOT::Math::Rotation3D(xx, xy, xz, yx, yy, yz, zx, zy, zz);

  // random number
  edm::Service<edm::RandomNumberGenerator> rng;
   if ( ! rng.isAvailable()) {
     throw cms::Exception("Configuration")
       << "EcalTBMCInfoProducer 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();
   flatDistribution_ = new CLHEP::RandFlat(engine);

}

EcalTBMCInfoProducer::~EcalTBMCInfoProducer ( ) [virtual]

Destructor.

Definition at line 103 of file EcalTBMCInfoProducer.cc.

References flatDistribution_, and theTestMap.

                                            {

  delete flatDistribution_;
  delete theTestMap;
  
}

Member Function Documentation

void EcalTBMCInfoProducer::produce	(	edm::Event &	event,
		const edm::EventSetup &	eventSetup
	)		`[virtual]`

Produce digis out of raw data.

Implements edm::EDProducer.

Definition at line 110 of file EcalTBMCInfoProducer.cc.

References beamEta, beamPhi, beamXoff, beamYoff, crysNumber, flatDistribution_, GenVtxLabel, LogDebug, partXhodo, and partYhodo.

{
  auto_ptr<PEcalTBInfo> product(new PEcalTBInfo());

  // Fill the run information

  product->setCrystal(crysNumber);

  product->setBeamDirection(beamEta, beamPhi);
  product->setBeamOffset(beamXoff, beamYoff);

  // Compute the event x,y vertex coordinates in the beam reference system
  // e.g. in the place orthogonal to the beam average direction

  partXhodo = partYhodo = 0.;

  edm::Handle<edm::HepMCProduct> GenEvt;
  event.getByLabel(GenVtxLabel,GenEvt);

  const HepMC::GenEvent* Evt = GenEvt->GetEvent() ;
  HepMC::GenEvent::vertex_const_iterator Vtx = Evt->vertices_begin();

  math::XYZPoint eventCMSVertex((*Vtx)->position().x(),
                                (*Vtx)->position().y(),
                                (*Vtx)->position().z());
  
  LogDebug("EcalTBInfo") << "Generated vertex position = " 
                         << eventCMSVertex.x() << " " 
                         << eventCMSVertex.y() << " " 
                         << eventCMSVertex.z();

  math::XYZPoint eventTBVertex = (*fromCMStoTB)*eventCMSVertex;

  LogDebug("EcalTBInfo") << "Rotated vertex position   = "
                         << eventTBVertex.x() << " " 
                         << eventTBVertex.y() << " " 
                         << eventTBVertex.z();

  partXhodo = eventTBVertex.x();
  partYhodo = eventTBVertex.y();

  product->setBeamPosition(partXhodo, partYhodo);

  // Asynchronous phase shift
  double thisPhaseShift = flatDistribution_->fire();

  product->setPhaseShift(thisPhaseShift);
  LogDebug("EcalTBInfo") << "Asynchronous Phaseshift = " << thisPhaseShift;

  // store the object in the framework event

  event.put(product);
}