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PixelTrackReconstruction.cc
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PixelTrackReconstruction.cc
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#include "RecoPixelVertexing/PixelTrackFitting/interface/PixelTrackReconstruction.h"
#include "FWCore/Framework/interface/Event.h"
#include "FWCore/Framework/interface/EventSetup.h"
#include "FWCore/MessageLogger/interface/MessageLogger.h"
#include "RecoTracker/TkTrackingRegions/interface/OrderedHitsGenerator.h"
#include "RecoTracker/TkTrackingRegions/interface/OrderedHitsGeneratorFactory.h"
#include "RecoTracker/TkTrackingRegions/interface/TrackingRegion.h"
#include "RecoTracker/TkTrackingRegions/interface/TrackingRegionProducer.h"
#include "RecoTracker/TkTrackingRegions/interface/TrackingRegionProducerFactory.h"
#include "RecoPixelVertexing/PixelTrackFitting/interface/PixelFitter.h"
#include "RecoPixelVertexing/PixelTrackFitting/interface/PixelFitterFactory.h"
#include "RecoPixelVertexing/PixelTrackFitting/interface/PixelTrackFilter.h"
#include "RecoPixelVertexing/PixelTrackFitting/interface/PixelTrackFilterFactory.h"
#include "RecoPixelVertexing/PixelTrackFitting/interface/PixelTrackCleaner.h"
#include "RecoPixelVertexing/PixelTrackFitting/interface/PixelTrackCleanerFactory.h"
#include "RecoPixelVertexing/PixelTrackFitting/interface/PixelTrackCleanerWrapper.h"
#include "DataFormats/TrackReco/interface/Track.h"
#include "DataFormats/TrackReco/interface/TrackFwd.h"
#include "DataFormats/TrackReco/interface/TrackExtra.h"
#include "RecoPixelVertexing/PixelTriplets/interface/QuadrupletSeedMerger.h"
#include <vector>
using namespace pixeltrackfitting;
using namespace ctfseeding;
using edm::ParameterSet;
PixelTrackReconstruction::PixelTrackReconstruction(const ParameterSet& cfg,
edm::ConsumesCollector && iC)
: theConfig(cfg), theFitter(0), theCleaner(0)
{
if ( cfg.exists("SeedMergerPSet") ) {
edm::ParameterSet mergerPSet = theConfig.getParameter<edm::ParameterSet>( "SeedMergerPSet" );
std::string seedmergerTTRHBuilderLabel = mergerPSet.getParameter<std::string>( "ttrhBuilderLabel" );
edm::ParameterSet seedmergerLayerList = mergerPSet.getParameter<edm::ParameterSet>( "layerList" );
bool seedmergerAddTriplets = mergerPSet.getParameter<bool>( "addRemainingTriplets" );
bool seedmergerMergeTriplets = mergerPSet.getParameter<bool>( "mergeTriplets" );
theMerger_.reset(new QuadrupletSeedMerger(seedmergerLayerList, iC));
theMerger_->setMergeTriplets( seedmergerMergeTriplets );
theMerger_->setAddRemainingTriplets( seedmergerAddTriplets );
theMerger_->setTTRHBuilderLabel( seedmergerTTRHBuilderLabel );
}
ParameterSet filterPSet = theConfig.getParameter<ParameterSet>("FilterPSet");
std::string filterName = filterPSet.getParameter<std::string>("ComponentName");
if (filterName != "none") {
theFilter.reset(PixelTrackFilterFactory::get()->create( filterName, filterPSet, iC));
if(theConfig.exists("useFilterWithES")) {
edm::LogInfo("Obsolete") << "useFilterWithES parameter is obsolete and can be removed";
}
}
ParameterSet orderedPSet =
theConfig.getParameter<ParameterSet>("OrderedHitsFactoryPSet");
std::string orderedName = orderedPSet.getParameter<std::string>("ComponentName");
theGenerator.reset(OrderedHitsGeneratorFactory::get()->create( orderedName, orderedPSet, iC));
ParameterSet regfactoryPSet = theConfig.getParameter<ParameterSet>("RegionFactoryPSet");
std::string regfactoryName = regfactoryPSet.getParameter<std::string>("ComponentName");
theRegionProducer.reset(TrackingRegionProducerFactory::get()->create(regfactoryName,regfactoryPSet, std::move(iC)));
}
PixelTrackReconstruction::~PixelTrackReconstruction()
{
halt();
}
void PixelTrackReconstruction::halt()
{
delete theFitter; theFitter=0;
delete theCleaner; theCleaner=0;
}
void PixelTrackReconstruction::init(const edm::EventSetup& es)
{
ParameterSet fitterPSet = theConfig.getParameter<ParameterSet>("FitterPSet");
std::string fitterName = fitterPSet.getParameter<std::string>("ComponentName");
theFitter = PixelFitterFactory::get()->create( fitterName, fitterPSet);
ParameterSet cleanerPSet = theConfig.getParameter<ParameterSet>("CleanerPSet");
std::string cleanerName = cleanerPSet.getParameter<std::string>("ComponentName");
if (cleanerName != "none") theCleaner = PixelTrackCleanerFactory::get()->create( cleanerName, cleanerPSet);
if (theMerger_) {
theMerger_->update( es );
}
}
void PixelTrackReconstruction::run(TracksWithTTRHs& tracks, edm::Event& ev, const edm::EventSetup& es)
{
typedef std::vector<TrackingRegion* > Regions;
typedef Regions::const_iterator IR;
Regions regions = theRegionProducer->regions(ev,es);
//Retrieve tracker topology from geometry
edm::ESHandle<TrackerTopology> tTopoHand;
es.get<IdealGeometryRecord>().get(tTopoHand);
const TrackerTopology *tTopo=tTopoHand.product();
if (theFilter) theFilter->update(ev, es);
for (IR ir=regions.begin(), irEnd=regions.end(); ir < irEnd; ++ir) {
const TrackingRegion & region = **ir;
const OrderedSeedingHits & triplets = theGenerator->run(region,ev,es);
const OrderedSeedingHits &tuplets= (theMerger_==0)? triplets : theMerger_->mergeTriplets( triplets, es );
unsigned int nTuplets = tuplets.size();
tracks.reserve(tracks.size()+nTuplets);
// producing tracks
for (unsigned int iTuplet = 0; iTuplet < nTuplets; ++iTuplet) {
const SeedingHitSet & tuplet = tuplets[iTuplet];
std::vector<const TrackingRecHit *> hits;
for (unsigned int iHit = 0, nHits = tuplet.size(); iHit < nHits; ++iHit) {
hits.push_back( tuplet[iHit]->hit() );
}
// fitting
reco::Track* track = theFitter->run( ev, es, hits, region);
if (!track) continue;
// decide if track should be skipped according to filter
if (theFilter && !(*theFilter)(track, hits) ) {
delete track;
continue;
}
// add tracks
tracks.push_back(TrackWithTTRHs(track, tuplet));
}
theGenerator->clear();
}
// skip ovelrapped tracks
if (theCleaner) tracks = PixelTrackCleanerWrapper(theCleaner).clean(tracks,tTopo);
// clean memory
for (IR ir=regions.begin(), irEnd=regions.end(); ir < irEnd; ++ir) delete (*ir);
}