#include <RecoVertex/PrimaryVertexProducer/src/PrimaryVertexProducer.cc>

Inheritance diagram for PrimaryVertexProducer:

Classes
struct	algo

Public Member Functions
edm::ParameterSet	config () const

	PrimaryVertexProducer (const edm::ParameterSet &)

virtual void	produce (edm::Event &, const edm::EventSetup &)

	~PrimaryVertexProducer ()

Public Member Functions inherited from edm::EDProducer
	EDProducer ()

virtual	~EDProducer ()

Public Member Functions inherited from edm::ProducerBase
	ProducerBase ()

void	registerProducts (ProducerBase , ProductRegistry , ModuleDescription const &)

boost::function< void(const BranchDescription &)>	registrationCallback () const
	used by the fwk to register list of products More...

virtual	~ProducerBase ()

Public Attributes
edm::InputTag	beamSpotLabel

edm::InputTag	trackLabel

Private Attributes
std::vector< algo >	algorithms

bool	fVerbose

edm::ParameterSet	theConfig

TrackClusterizerInZ *	theTrackClusterizer

TrackFilterForPVFindingBase *	theTrackFilter

Additional Inherited Members
Public Types inherited from edm::EDProducer
typedef EDProducer	ModuleType

typedef WorkerT< EDProducer >	WorkerType

Public Types inherited from edm::ProducerBase
typedef ProductRegistryHelper::TypeLabelList	TypeLabelList

Static Public Member Functions inherited from edm::EDProducer
static const std::string &	baseType ()

static void	fillDescriptions (ConfigurationDescriptions &descriptions)

static void	prevalidate (ConfigurationDescriptions &descriptions)

Protected Member Functions inherited from edm::EDProducer
CurrentProcessingContext const *	currentContext () const

Protected Member Functions inherited from edm::ProducerBase
template<class TProducer , class TMethod >
void	callWhenNewProductsRegistered (TProducer *iProd, TMethod iMethod)

Detailed Description

Description: steers tracker primary vertex reconstruction and storage

Implementation: <Notes on="" implementation>="">

Definition at line 56 of file PrimaryVertexProducer.h.

Constructor & Destructor Documentation

PrimaryVertexProducer::PrimaryVertexProducer ( const edm::ParameterSet & conf )

explicit

Definition at line 19 of file PrimaryVertexProducer.cc.

References algorithm(), algorithms, beamSpotLabel, edm::ParameterSet::exists(), PrimaryVertexProducer::algo::fitter, fVerbose, edm::ParameterSet::getParameter(), edm::ParameterSet::getUntrackedParameter(), PrimaryVertexProducer::algo::label, PrimaryVertexProducer::algo::minNdof, theTrackClusterizer, theTrackFilter, trackLabel, PrimaryVertexProducer::algo::useBeamConstraint, and PrimaryVertexProducer::algo::vertexSelector.

   :theConfig(conf)
 {
 
   fVerbose   = conf.getUntrackedParameter<bool>("verbose", false);
   trackLabel = conf.getParameter<edm::InputTag>("TrackLabel");
   beamSpotLabel = conf.getParameter<edm::InputTag>("beamSpotLabel");
 
 
   // select and configure the track selection
   std::string trackSelectionAlgorithm=conf.getParameter<edm::ParameterSet>("TkFilterParameters").getParameter<std::string>("algorithm");
   if(trackSelectionAlgorithm=="filter"){
     theTrackFilter= new TrackFilterForPVFinding( conf.getParameter<edm::ParameterSet>("TkFilterParameters") );
   }else if (trackSelectionAlgorithm=="filterWithThreshold"){
     theTrackFilter= new HITrackFilterForPVFinding(conf.getParameter<edm::ParameterSet>("TkFilterParameters"));
   }else{
     throw VertexException("PrimaryVertexProducerAlgorithm: unknown track selection algorithm: " + trackSelectionAlgorithm);  
   }
 
 
   // select and configure the track clusterizer
   std::string clusteringAlgorithm=conf.getParameter<edm::ParameterSet>("TkClusParameters").getParameter<std::string>("algorithm");
   if (clusteringAlgorithm=="gap"){
     theTrackClusterizer = new GapClusterizerInZ(conf.getParameter<edm::ParameterSet>("TkClusParameters").getParameter<edm::ParameterSet>("TkGapClusParameters"));
   }else if(clusteringAlgorithm=="DA"){
     theTrackClusterizer = new DAClusterizerInZ(conf.getParameter<edm::ParameterSet>("TkClusParameters").getParameter<edm::ParameterSet>("TkDAClusParameters"));
   }
   // provide the vectorized version of the clusterizer, if supported by the build
 #ifdef __GXX_EXPERIMENTAL_CXX0X__
    else if(clusteringAlgorithm == "DA_vect") {
     theTrackClusterizer = new DAClusterizerInZ_vect(conf.getParameter<edm::ParameterSet>("TkClusParameters").getParameter<edm::ParameterSet>("TkDAClusParameters"));
   }
 #endif
 
 
   else{
     throw VertexException("PrimaryVertexProducerAlgorithm: unknown clustering algorithm: " + clusteringAlgorithm);  
   }
 
 
   // select and configure the vertex fitters
   if (conf.exists("vertexCollections")){
     std::vector<edm::ParameterSet> vertexCollections =conf.getParameter< std::vector<edm::ParameterSet> >("vertexCollections");
 
     for( std::vector< edm::ParameterSet >::const_iterator algoconf = vertexCollections.begin(); algoconf != vertexCollections.end(); algoconf++){
       
       algo algorithm;
       std::string fitterAlgorithm = algoconf->getParameter<std::string>("algorithm");
       if (fitterAlgorithm=="KalmanVertexFitter") {
     algorithm.fitter= new KalmanVertexFitter();
       } else if( fitterAlgorithm=="AdaptiveVertexFitter") {
     algorithm.fitter= new AdaptiveVertexFitter();
       } else {
     throw VertexException("PrimaryVertexProducerAlgorithm: unknown algorithm: " + fitterAlgorithm);  
       }
       algorithm.label = algoconf->getParameter<std::string>("label");
       algorithm.minNdof = algoconf->getParameter<double>("minNdof");
       algorithm.useBeamConstraint=algoconf->getParameter<bool>("useBeamConstraint");
       algorithm.vertexSelector=new VertexCompatibleWithBeam(VertexDistanceXY(), algoconf->getParameter<double>("maxDistanceToBeam"));
       algorithms.push_back(algorithm);
       
       produces<reco::VertexCollection>(algorithm.label);
     }
   }else{
     edm::LogWarning("MisConfiguration")<<"this module's configuration has changed, please update to have a vertexCollections=cms.VPSet parameter.";
 
     algo algorithm;
     std::string fitterAlgorithm = conf.getParameter<std::string>("algorithm");
     if (fitterAlgorithm=="KalmanVertexFitter") {
       algorithm.fitter= new KalmanVertexFitter();
     } else if( fitterAlgorithm=="AdaptiveVertexFitter") {
       algorithm.fitter= new AdaptiveVertexFitter();
     } else {
       throw VertexException("PrimaryVertexProducerAlgorithm: unknown algorithm: " + fitterAlgorithm);  
     }
     algorithm.label = "";
     algorithm.minNdof = conf.getParameter<double>("minNdof");
     algorithm.useBeamConstraint=conf.getParameter<bool>("useBeamConstraint");
     
     algorithm.vertexSelector=new VertexCompatibleWithBeam(VertexDistanceXY(), conf.getParameter<edm::ParameterSet>("PVSelParameters").getParameter<double>("maxDistanceToBeam"));
 
     algorithms.push_back(algorithm);
     produces<reco::VertexCollection>(algorithm.label);
   }
  
 
 }

PrimaryVertexProducer::~PrimaryVertexProducer ( )

Definition at line 108 of file PrimaryVertexProducer.cc.

References algorithm(), algorithms, theTrackClusterizer, and theTrackFilter.

                                               {
   if (theTrackFilter) delete theTrackFilter;
   if (theTrackClusterizer) delete theTrackClusterizer;
   for( std::vector <algo>::const_iterator algorithm=algorithms.begin(); algorithm!=algorithms.end(); algorithm++){
     if (algorithm->fitter) delete algorithm->fitter;
     if (algorithm->vertexSelector) delete algorithm->vertexSelector;
   }
 }

Member Function Documentation

edm::ParameterSet PrimaryVertexProducer::config ( void ) const

inline

Definition at line 64 of file PrimaryVertexProducer.h.

References theConfig.

64 { return theConfig; }

PrimaryVertexProducer::theConfig

edm::ParameterSet theConfig

Definition: PrimaryVertexProducer.h:84

void PrimaryVertexProducer::produce	(	edm::Event &	iEvent,
		const edm::EventSetup &	iSetup
	)

virtual

Implements edm::EDProducer.

Definition at line 119 of file PrimaryVertexProducer.cc.

References algorithm(), algorithms, SiPixelRawToDigiRegional_cfi::beamSpot, beamSpotLabel, TrackClusterizerInZ::clusterize(), gather_cfg::cout, GlobalErrorBase< T, ErrorWeightType >::cxx(), GlobalErrorBase< T, ErrorWeightType >::cyy(), GlobalErrorBase< T, ErrorWeightType >::czz(), TransientVertex::degreesOfFreedom(), VertexState::error(), fVerbose, edm::EventSetup::get(), edm::Event::getByLabel(), edm::HandleBase::isValid(), TransientVertex::isValid(), GlobalErrorBase< T, ErrorWeightType >::matrix(), reco::BeamSpot::position(), TransientVertex::position(), edm::Event::put(), query::result, reco::BeamSpot::rotatedCovariance3D(), TrackFilterForPVFindingBase::select(), python.multivaluedict::sort(), theTrackClusterizer, theTrackFilter, trackLabel, v, PV3DBase< T, PVType, FrameType >::x(), PV3DBase< T, PVType, FrameType >::y(), and PV3DBase< T, PVType, FrameType >::z().

 {
 
   // get the BeamSpot, it will alwys be needed, even when not used as a constraint
   reco::BeamSpot beamSpot;
   edm::Handle<reco::BeamSpot> recoBeamSpotHandle;
   iEvent.getByLabel(beamSpotLabel,recoBeamSpotHandle);
   if (recoBeamSpotHandle.isValid()){
     beamSpot = *recoBeamSpotHandle;
   }else{
     edm::LogError("UnusableBeamSpot") << "No beam spot available from EventSetup";
   }
 
   bool validBS = true;
   VertexState beamVertexState(beamSpot);
   if ( (beamVertexState.error().cxx() <= 0.) || 
        (beamVertexState.error().cyy() <= 0.) ||
        (beamVertexState.error().czz() <= 0.) ) {
     validBS = false;
     edm::LogError("UnusableBeamSpot") << "Beamspot with invalid errors "<<beamVertexState.error().matrix();
   }
 
 
   // get RECO tracks from the event
   // `tks` can be used as a ptr to a reco::TrackCollection
   edm::Handle<reco::TrackCollection> tks;
   iEvent.getByLabel(trackLabel, tks);
 
 
   // interface RECO tracks to vertex reconstruction
   edm::ESHandle<TransientTrackBuilder> theB;
   iSetup.get<TransientTrackRecord>().get("TransientTrackBuilder",theB);
   std::vector<reco::TransientTrack> t_tks = (*theB).build(tks, beamSpot);
   if(fVerbose) {std::cout << "RecoVertex/PrimaryVertexProducer"
              << "Found: " << t_tks.size() << " reconstructed tracks" << "\n";
   }
 
 
   // select tracks
   std::vector<reco::TransientTrack> seltks = theTrackFilter->select( t_tks );
 
 
   // clusterize tracks in Z
   std::vector< std::vector<reco::TransientTrack> > clusters =  theTrackClusterizer->clusterize(seltks);
   if (fVerbose){std::cout <<  " clustering returned  "<< clusters.size() << " clusters  from " << seltks.size() << " selected tracks" <<std::endl;}
 
 
   // vertex fits
   for( std::vector <algo>::const_iterator algorithm=algorithms.begin(); algorithm!=algorithms.end(); algorithm++){
 
 
     std::auto_ptr<reco::VertexCollection> result(new reco::VertexCollection);
     reco::VertexCollection vColl;
 
 
     std::vector<TransientVertex> pvs;
     for (std::vector< std::vector<reco::TransientTrack> >::const_iterator iclus
        = clusters.begin(); iclus != clusters.end(); iclus++) {
 
 
       TransientVertex v; 
       if( algorithm->useBeamConstraint && validBS &&((*iclus).size()>1) ){
     
     v = algorithm->fitter->vertex(*iclus, beamSpot);
     
       }else if( !(algorithm->useBeamConstraint) && ((*iclus).size()>1) ) {
       
     v = algorithm->fitter->vertex(*iclus); 
     
       }// else: no fit ==> v.isValid()=False
 
 
       if (fVerbose){
     if (v.isValid()) std::cout << "x,y,z=" << v.position().x() <<" " << v.position().y() << " " <<  v.position().z() << std::endl;
     else std::cout <<"Invalid fitted vertex\n";
       }
 
       if (v.isValid() 
         && (v.degreesOfFreedom()>=algorithm->minNdof) 
       && (!validBS || (*(algorithm->vertexSelector))(v,beamVertexState))
       ) pvs.push_back(v);
     }// end of cluster loop
 
     if(fVerbose){
       std::cout << "PrimaryVertexProducerAlgorithm::vertices  candidates =" << pvs.size() << std::endl;
     }
 
 
 
     
 
     // sort vertices by pt**2  vertex (aka signal vertex tagging)
     if(pvs.size()>1){
       sort(pvs.begin(), pvs.end(), VertexHigherPtSquared());
     }
 
 
 
     // convert transient vertices returned by the theAlgo to (reco) vertices
     for (std::vector<TransientVertex>::const_iterator iv = pvs.begin();
      iv != pvs.end(); iv++) {
       reco::Vertex v = *iv;
       vColl.push_back(v);
     }
 
     if (vColl.empty()) {
       GlobalError bse(beamSpot.rotatedCovariance3D());
       if ( (bse.cxx() <= 0.) || 
        (bse.cyy() <= 0.) ||
        (bse.czz() <= 0.) ) {
     AlgebraicSymMatrix33 we;
     we(0,0)=10000; we(1,1)=10000; we(2,2)=10000;
     vColl.push_back(reco::Vertex(beamSpot.position(), we,0.,0.,0));
     if(fVerbose){
       std::cout <<"RecoVertex/PrimaryVertexProducer: "
             << "Beamspot with invalid errors "<<bse.matrix()<<std::endl;
       std::cout << "Will put Vertex derived from dummy-fake BeamSpot into Event.\n";
     }
       } else {
     vColl.push_back(reco::Vertex(beamSpot.position(), 
                      beamSpot.rotatedCovariance3D(),0.,0.,0));
     if(fVerbose){
       std::cout <<"RecoVertex/PrimaryVertexProducer: "
             << " will put Vertex derived from BeamSpot into Event.\n";
     }
       }
     }
 
     if(fVerbose){
       int ivtx=0;
       for(reco::VertexCollection::const_iterator v=vColl.begin(); 
       v!=vColl.end(); ++v){
     std::cout << "recvtx "<< ivtx++ 
           << "#trk " << std::setw(3) << v->tracksSize()
           << " chi2 " << std::setw(4) << v->chi2() 
           << " ndof " << std::setw(3) << v->ndof() 
           << " x "  << std::setw(6) << v->position().x() 
           << " dx " << std::setw(6) << v->xError()
           << " y "  << std::setw(6) << v->position().y() 
           << " dy " << std::setw(6) << v->yError()
           << " z "  << std::setw(6) << v->position().z() 
           << " dz " << std::setw(6) << v->zError()
           << std::endl;
       }
     }
 
   
     *result = vColl;
     iEvent.put(result, algorithm->label); 
   }
   
 }