PixelVertexProducerClusters Class Reference

#include <PixelVertexProducerClusters.h>

Inheritance diagram for PixelVertexProducerClusters:

Public Member Functions
	PixelVertexProducerClusters (const edm::ParameterSet &ps)
virtual void	produce (edm::StreamID, edm::Event &ev, const edm::EventSetup &es) const override
	~PixelVertexProducerClusters ()
Public Member Functions inherited from edm::global::EDProducer<>
	EDProducer ()=default
Public Member Functions inherited from edm::global::EDProducerBase
	EDProducerBase ()
ModuleDescription const &	moduleDescription () const
virtual	~EDProducerBase ()
Public Member Functions inherited from edm::ProducerBase
void	callWhenNewProductsRegistered (std::function< void(BranchDescription const &)> const &func)
	ProducerBase ()
void	registerProducts (ProducerBase *, ProductRegistry *, ModuleDescription const &)
std::function< void(BranchDescription const &)>	registrationCallback () const
	used by the fwk to register list of products More...
virtual	~ProducerBase ()
Public Member Functions inherited from edm::EDConsumerBase
std::vector< ConsumesInfo >	consumesInfo () const
	EDConsumerBase ()
ProductHolderIndexAndSkipBit	indexFrom (EDGetToken, BranchType, TypeID const &) const
void	itemsMayGet (BranchType, std::vector< ProductHolderIndexAndSkipBit > &) const
void	itemsToGet (BranchType, std::vector< ProductHolderIndexAndSkipBit > &) const
std::vector < ProductHolderIndexAndSkipBit > const &	itemsToGetFromEvent () const
void	labelsForToken (EDGetToken iToken, Labels &oLabels) const
void	modulesDependentUpon (std::string const &iProcessName, std::string const &iModuleLabel, bool iPrint, std::vector< char const * > &oModuleLabels) const
void	modulesWhoseProductsAreConsumed (std::vector< ModuleDescription const * > &modules, ProductRegistry const &preg, std::map< std::string, ModuleDescription const * > const &labelsToDesc, std::string const &processName) const
bool	registeredToConsume (ProductHolderIndex, bool, BranchType) const
bool	registeredToConsumeMany (TypeID const &, BranchType) const
void	updateLookup (BranchType iBranchType, ProductHolderIndexHelper const &)
virtual	~EDConsumerBase ()

Private Attributes
edm::EDGetTokenT < SiPixelRecHitCollection >	pixelToken_

Additional Inherited Members
Public Types inherited from edm::global::EDProducerBase
typedef EDProducerBase	ModuleType
Public Types inherited from edm::ProducerBase
typedef ProductRegistryHelper::TypeLabelList	TypeLabelList
Public Types inherited from edm::EDConsumerBase
typedef ProductLabels	Labels
Static Public Member Functions inherited from edm::global::EDProducerBase
static const std::string &	baseType ()
static void	fillDescriptions (ConfigurationDescriptions &descriptions)
static void	prevalidate (ConfigurationDescriptions &descriptions)
Protected Member Functions inherited from edm::EDConsumerBase
template<typename ProductType , BranchType B = InEvent>
EDGetTokenT< ProductType >	consumes (edm::InputTag const &tag)
EDGetToken	consumes (const TypeToGet &id, edm::InputTag const &tag)
template<BranchType B>
EDGetToken	consumes (TypeToGet const &id, edm::InputTag const &tag)
ConsumesCollector	consumesCollector ()
	Use a ConsumesCollector to gather consumes information from helper functions. More...
template<typename ProductType , BranchType B = InEvent>
void	consumesMany ()
void	consumesMany (const TypeToGet &id)
template<BranchType B>
void	consumesMany (const TypeToGet &id)
template<typename ProductType , BranchType B = InEvent>
EDGetTokenT< ProductType >	mayConsume (edm::InputTag const &tag)
EDGetToken	mayConsume (const TypeToGet &id, edm::InputTag const &tag)
template<BranchType B>
EDGetToken	mayConsume (const TypeToGet &id, edm::InputTag const &tag)

Detailed Description

Definition at line 13 of file PixelVertexProducerClusters.h.

Constructor & Destructor Documentation

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

explicit

Definition at line 65 of file PixelVertexProducerClusters.cc.

                              : pixelToken_(consumes<SiPixelRecHitCollection>(edm::InputTag("siPixelRecHits")))
{
  // Product
  produces<reco::VertexCollection>();
}

PixelVertexProducerClusters::~PixelVertexProducerClusters

(

)

Definition at line 72 of file PixelVertexProducerClusters.cc.

{ 
}

Member Function Documentation

void PixelVertexProducerClusters::produce ( edm::StreamID  , edm::Event &  ev, const edm::EventSetup &  es  ) const

overridevirtual

Implements edm::global::EDProducerBase.

Definition at line 79 of file PixelVertexProducerClusters.cc.

References edmNew::DetSetVector< T >::data(), alignCSCRings::e, edm::EventSetup::get(), edm::Event::getByToken(), TrackerGeometry::idToDet(), TrackerGeometry::idToDetUnit(), PixelTopology::isItEdgePixelInX(), PixelTopology::isItEdgePixelInY(), LogTrace, nhits, PixelSubdetector::PixelBarrel, edm::Handle< T >::product(), edm::ESHandle< class >::product(), edm::Event::put(), edmNew::DetSetVector< T >::size(), PixelGeomDetUnit::specificTopology(), GeomDet::toGlobal(), and HLT_FULL_cff::vertices.

{
  //Retrieve tracker topology from geometry
  edm::ESHandle<TrackerTopology> tTopo;
  es.get<TrackerTopologyRcd>().get(tTopo);

  // Get tracker geometry
  edm::ESHandle<TrackerGeometry> trackerHandle;
  es.get<TrackerDigiGeometryRecord>().get(trackerHandle);
  const TrackerGeometry* theTracker = trackerHandle.product();


  // Get pixel hit collections
  edm::Handle<SiPixelRecHitCollection> pixelColl;
  ev.getByToken(pixelToken_,           pixelColl);

  const SiPixelRecHitCollection* thePixelHits = pixelColl.product();

  std::auto_ptr<reco::VertexCollection> vertices(new reco::VertexCollection);

  if(thePixelHits->size() > 0)
  {
    vector<VertexHit> hits;

    for(SiPixelRecHitCollection::DataContainer::const_iterator
           recHit = thePixelHits->data().begin(),
           recHitEnd = thePixelHits->data().end();
           recHit != recHitEnd; ++recHit)
    {
      if(recHit->isValid())
      {
//      if(!(recHit->isOnEdge() || recHit->hasBadPixels()))
        DetId id = recHit->geographicalId();
        const PixelGeomDetUnit* pgdu =
          dynamic_cast<const PixelGeomDetUnit*>(theTracker->idToDetUnit(id));
        const PixelTopology* theTopol = ( &(pgdu->specificTopology()) );
        vector<SiPixelCluster::Pixel> pixels = recHit->cluster()->pixels();

        bool pixelOnEdge = false;
        for(vector<SiPixelCluster::Pixel>::const_iterator
               pixel = pixels.begin(); pixel!= pixels.end(); pixel++)
        {
          int pos_x = (int)pixel->x;
          int pos_y = (int)pixel->y;

          if(theTopol->isItEdgePixelInX(pos_x) ||
              theTopol->isItEdgePixelInY(pos_y))
          { pixelOnEdge = true; break; }
        }
    
        if(!pixelOnEdge)
        if(id.subdetId() == int(PixelSubdetector::PixelBarrel))  
        {
          
 
          LocalPoint lpos = LocalPoint(recHit->localPosition().x(),
                                       recHit->localPosition().y(),
                                       recHit->localPosition().z());

          GlobalPoint gpos = theTracker->idToDet(id)->toGlobal(lpos);

          VertexHit hit;
          hit.z = gpos.z(); 
          hit.r = gpos.perp(); 
          hit.w = recHit->cluster()->sizeY();

          hits.push_back(hit);
        }
      }
    }

    int nhits; int nhits_max = 0;
    float chi; float chi_max = 1e+9;

    float zest = 0;
 
    for(float z0 = -15.9; z0 <= 15.95; z0 += 0.1)
    {
      nhits = getContainedHits(hits, z0, chi);

      if(nhits > 0)
      {
        if(nhits >  nhits_max)
        { chi_max = 1e+9; nhits_max = nhits; }

        if(nhits >= nhits_max)
        if(chi < chi_max)
        { chi_max = chi; zest = z0; }
      }
    }

    LogTrace("MinBiasTracking")
      << "  [vertex position] estimated = " << zest 
      << " | pixel barrel hits = " << thePixelHits->size();

    reco::Vertex::Error err;
    err(2,2) = 0.6 * 0.6;
    reco::Vertex ver(reco::Vertex::Point(0,0,zest), err, 0, 1, 1);
    vertices->push_back(ver);
  }

  ev.put(vertices);
}

Member Data Documentation

edm::EDGetTokenT<SiPixelRecHitCollection> PixelVertexProducerClusters::pixelToken_

private

Definition at line 21 of file PixelVertexProducerClusters.h.