#include <SiPixelDigitizer.h>

Inheritance diagram for cms::SiPixelDigitizer:

Public Member Functions
virtual void	beginJob ()
virtual void	produce (edm::Event &e, const edm::EventSetup &c)
	SiPixelDigitizer (const edm::ParameterSet &conf)
virtual	~SiPixelDigitizer ()
Private Types
typedef std::map< unsigned int, std::vector< PSimHit > , std::less< unsigned int > >	simhit_map
typedef simhit_map::iterator	simhit_map_iterator
typedef std::vector< std::string >	vstring
Private Attributes
SiPixelDigitizerAlgorithm *	_pixeldigialgo
edm::ParameterSet	conf_
bool	first
std::string	geometryType
CLHEP::HepRandomEngine *	rndEngine
simhit_map	SimHitMap
std::vector< edm::DetSet < PixelDigiSimLink > >	theDigiLinkVector
std::vector< edm::DetSet < PixelDigi > >	theDigiVector
vstring	trackerContainers

Detailed Description

Definition at line 36 of file SiPixelDigitizer.h.

Member Typedef Documentation

typedef std::map<unsigned int, std::vector<PSimHit>,std::less<unsigned int> > cms::SiPixelDigitizer::simhit_map [private]

Definition at line 53 of file SiPixelDigitizer.h.

typedef simhit_map::iterator cms::SiPixelDigitizer::simhit_map_iterator [private]

Definition at line 54 of file SiPixelDigitizer.h.

typedef std::vector<std::string> cms::SiPixelDigitizer::vstring [private]

Definition at line 51 of file SiPixelDigitizer.h.

Constructor & Destructor Documentation

SiPixelDigitizer::SiPixelDigitizer ( const edm::ParameterSet & conf ) [explicit]

Definition at line 86 of file SiPixelDigitizer.cc.

References _pixeldigialgo, ExpressReco_HICollisions_FallBack::alias, Exception, geometryType, edm::ParameterSet::getParameter(), rndEngine, and trackerContainers.

                                                                  :
    conf_(iConfig),first(true)
  {
    edm::LogInfo ("PixelDigitizer ") <<"Enter the Pixel Digitizer";
    
    std::string alias ( iConfig.getParameter<std::string>("@module_label") ); 
    
    produces<edm::DetSetVector<PixelDigi> >().setBranchAlias( alias );
    produces<edm::DetSetVector<PixelDigiSimLink> >().setBranchAlias ( alias + "siPixelDigiSimLink");
    trackerContainers.clear();
    trackerContainers = iConfig.getParameter<std::vector<std::string> >("ROUList");
    geometryType = iConfig.getParameter<std::string>("GeometryType");
    edm::Service<edm::RandomNumberGenerator> rng;
    if ( ! rng.isAvailable()) {
      throw cms::Exception("Configuration")
        << "SiPixelDigitizer 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.";
    }
  
    rndEngine       = &(rng->getEngine());
    _pixeldigialgo = new SiPixelDigitizerAlgorithm(iConfig,(*rndEngine));

  }

SiPixelDigitizer::~SiPixelDigitizer ( ) [virtual]

Definition at line 111 of file SiPixelDigitizer.cc.

References _pixeldigialgo.

                                     {  
    edm::LogInfo ("PixelDigitizer ") <<"Destruct the Pixel Digitizer";
    delete _pixeldigialgo;
  }

Member Function Documentation

virtual void cms::SiPixelDigitizer::beginJob ( void ) [inline, virtual]

Reimplemented from edm::EDProducer.

Definition at line 46 of file SiPixelDigitizer.h.

{}

void SiPixelDigitizer::produce	(	edm::Event &	e,
		const edm::EventSetup &	c
	)		`[virtual]`

Implements edm::EDProducer.

Definition at line 123 of file SiPixelDigitizer.cc.

References _pixeldigialgo, MixCollection< T >::begin(), edm::DetSet< T >::data, cond::rpcobgas::detid, MixCollection< T >::end(), first, geometryType, edm::EventSetup::get(), edm::Event::getByLabel(), i, SiPixelDigitizerAlgorithm::init(), LogDebug, SiPixelDigitizerAlgorithm::make_link(), convertSQLitetoXML_cfg::output, PixelSubdetector::PixelBarrel, PixelSubdetector::PixelEndcap, edm::Handle< T >::product(), edm::Event::put(), SiPixelDigitizerAlgorithm::run(), SimHitMap, DetId::subdetId(), theDigiLinkVector, theDigiVector, and trackerContainers.

  {

    if(first){
      _pixeldigialgo->init(iSetup);
      first = false;
    }

    // Step A: Get Inputs
    edm::Handle<CrossingFrame<PSimHit> > cf_simhit;
    std::vector<const CrossingFrame<PSimHit> *> cf_simhitvec;
    for(uint32_t i = 0; i< trackerContainers.size();i++){
      iEvent.getByLabel("mix",trackerContainers[i],cf_simhit);
      cf_simhitvec.push_back(cf_simhit.product());
    }
    
    std::auto_ptr<MixCollection<PSimHit> > allPixelTrackerHits(new MixCollection<PSimHit>(cf_simhitvec));

    edm::ESHandle<TrackerGeometry> pDD;
    
    iSetup.get<TrackerDigiGeometryRecord> ().get(geometryType,pDD);
 
    edm::ESHandle<MagneticField> pSetup;
    iSetup.get<IdealMagneticFieldRecord>().get(pSetup);

    //Loop on PSimHit
    SimHitMap.clear();

    MixCollection<PSimHit>::iterator isim;
    for (isim=allPixelTrackerHits->begin(); isim!= allPixelTrackerHits->end();isim++) {
      DetId detid=DetId((*isim).detUnitId());
      unsigned int subid=detid.subdetId();
      if ((subid==  PixelSubdetector::PixelBarrel) || (subid== PixelSubdetector::PixelEndcap)) {
        SimHitMap[(*isim).detUnitId()].push_back((*isim));
      }
    }

    // Step B: LOOP on PixelGeomDetUnit //
    for(TrackingGeometry::DetUnitContainer::const_iterator iu = pDD->detUnits().begin(); iu != pDD->detUnits().end(); iu ++){
      DetId idet=DetId((*iu)->geographicalId().rawId());
      unsigned int isub=idet.subdetId();
      
      
      if  ((isub==  PixelSubdetector::PixelBarrel) || (isub== PixelSubdetector::PixelEndcap)) {  
        
        
        //access to magnetic field in global coordinates
        GlobalVector bfield=pSetup->inTesla((*iu)->surface().position());
        LogDebug ("PixelDigitizer ") << "B-field(T) at "<<(*iu)->surface().position()<<"(cm): " 
                                     << pSetup->inTesla((*iu)->surface().position());
        //
        
        edm::DetSet<PixelDigi> collector((*iu)->geographicalId().rawId());
        edm::DetSet<PixelDigiSimLink> linkcollector((*iu)->geographicalId().rawId());
        
        
        collector.data=
          _pixeldigialgo->run(SimHitMap[(*iu)->geographicalId().rawId()],
                             dynamic_cast<PixelGeomDetUnit*>((*iu)),
                             bfield);
        if (collector.data.size()>0){
          theDigiVector.push_back(collector);
          
          //digisimlink
          if(SimHitMap[(*iu)->geographicalId().rawId()].size()>0){
              linkcollector.data=_pixeldigialgo->make_link();
              if (linkcollector.data.size()>0) theDigiLinkVector.push_back(linkcollector);
          }
          
        }
      }
      
    }
    
    // Step C: create collection with the cache vector of DetSet 
    std::auto_ptr<edm::DetSetVector<PixelDigi> > 
      output(new edm::DetSetVector<PixelDigi>(theDigiVector) );
    std::auto_ptr<edm::DetSetVector<PixelDigiSimLink> > 
      outputlink(new edm::DetSetVector<PixelDigiSimLink>(theDigiLinkVector) );

    // Step D: write output to file 
    iEvent.put(output);
    iEvent.put(outputlink);
  }