#include <MultiHitGeneratorFromChi2.h>

Inheritance diagram for MultiHitGeneratorFromChi2:

Public Member Functions
void	hitSets (const TrackingRegion &region, OrderedMultiHits &trs, const edm::Event &ev, const edm::EventSetup &es, SeedingLayerSetsHits::SeedingLayerSet pairLayers, std::vector< SeedingLayerSetsHits::SeedingLayer > thirdLayers) override

void	hitSets (const TrackingRegion &region, OrderedMultiHits &trs, const edm::Event &ev, const edm::EventSetup &es, const HitDoublets &doublets, const std::vector< SeedingLayerSetsHits::SeedingLayer > &thirdLayers, LayerCacheType &layerCache, cacheHits &refittedHitStorage)

void	hitSets (const TrackingRegion &region, OrderedMultiHits &result, const edm::EventSetup &es, const HitDoublets &doublets, const RecHitsSortedInPhi *thirdHitMap, const std::vector< const DetLayer > &thirdLayerDetLayer, const int nThirdLayers, cacheHits &refittedHitStorage)

void	hitTriplets (const TrackingRegion &region, OrderedMultiHits &result, const edm::EventSetup &es, const HitDoublets &doublets, const RecHitsSortedInPhi *thirdHitMap, const std::vector< const DetLayer > &thirdLayerDetLayer, const int nThirdLayers) override

void	initES (const edm::EventSetup &es) override

	MultiHitGeneratorFromChi2 (const edm::ParameterSet &cfg)

	~MultiHitGeneratorFromChi2 () override

Public Member Functions inherited from MultiHitGeneratorFromPairAndLayers
void	clear ()

void	init (std::unique_ptr< HitPairGeneratorFromLayerPair > &&pairGenerator, LayerCacheType *layerCache)

	MultiHitGeneratorFromPairAndLayers (const edm::ParameterSet &pset)

const HitPairGeneratorFromLayerPair &	pairGenerator () const

virtual	~MultiHitGeneratorFromPairAndLayers ()

Static Public Member Functions
static void	fillDescriptions (edm::ParameterSetDescription &desc)

static const char *	fillDescriptionsLabel ()

Static Public Member Functions inherited from MultiHitGeneratorFromPairAndLayers
static void	fillDescriptions (edm::ParameterSetDescription &desc)

Private Types
using	HitOwnPtr = mayown_ptr< BaseTrackerRecHit >

typedef CombinedMultiHitGenerator::LayerCacheType	LayerCacheType

Private Member Functions
void	refit2Hits (HitOwnPtr &hit0, HitOwnPtr &hit1, TrajectoryStateOnSurface &tsos0, TrajectoryStateOnSurface &tsos1, const TrackingRegion &region, float nomField, bool isDebug)

Private Attributes
const MagneticField *	bfield

TkTransientTrackingRecHitBuilder const *	builder

std::string	builderName_

std::vector< double >	chi2_cuts

bool	chi2VsPtCut

TkClonerImpl	cloner

std::vector< int >	detIdsToDebug

float	dphi

float	extraHitRPhitolerance

float	extraHitRZtolerance

float	extraPhiKDBox

float	extraRKDBox

float	extraZKDBox

const ClusterShapeHitFilter *	filter

std::string	filterName_

double	fnSigmaRZ

double	maxChi2

std::string	mfName_

float	nomField

double	nSigmaPhi

double	nSigmaRZ

std::vector< double >	pt_interv

bool	refitHits

UniformMagneticField	ufield = 0.

bool	useFixedPreFiltering

bool	useSimpleMF_

Additional Inherited Members
Public Types inherited from MultiHitGeneratorFromPairAndLayers
typedef LayerHitMapCache	LayerCacheType

Protected Types inherited from MultiHitGeneratorFromPairAndLayers
using	cacheHitPointer = std::unique_ptr< BaseTrackerRecHit >

using	cacheHits = std::vector< cacheHitPointer >

Protected Attributes inherited from MultiHitGeneratorFromPairAndLayers
cacheHits	cache

LayerCacheType *	theLayerCache

const unsigned int	theMaxElement

std::unique_ptr< HitPairGeneratorFromLayerPair >	thePairGenerator

Detailed Description

Definition at line 29 of file MultiHitGeneratorFromChi2.h.

Member Typedef Documentation

using MultiHitGeneratorFromChi2::HitOwnPtr = mayown_ptr<BaseTrackerRecHit>

private

Definition at line 73 of file MultiHitGeneratorFromChi2.h.

typedef CombinedMultiHitGenerator::LayerCacheType MultiHitGeneratorFromChi2::LayerCacheType

private

Definition at line 31 of file MultiHitGeneratorFromChi2.h.

Constructor & Destructor Documentation

MultiHitGeneratorFromChi2::MultiHitGeneratorFromChi2 ( const edm::ParameterSet & cfg )

Definition at line 57 of file MultiHitGeneratorFromChi2.cc.

References bfield, chi2_cuts, chi2VsPtCut, detIdsToDebug, dphi, edm::ParameterSet::exists(), filter, edm::ParameterSet::getParameter(), mfName_, nomField, pt_interv, AlCaHLTBitMon_QueryRunRegistry::string, useFixedPreFiltering, and useSimpleMF_.

   : MultiHitGeneratorFromPairAndLayers(cfg),
     useFixedPreFiltering(cfg.getParameter<bool>("useFixedPreFiltering")),
     extraHitRZtolerance(cfg.getParameter<double>("extraHitRZtolerance")),//extra window in ThirdHitRZPrediction range 
     extraHitRPhitolerance(cfg.getParameter<double>("extraHitRPhitolerance")),//extra window in ThirdHitPredictionFromCircle range (divide by R to get phi) 
     extraZKDBox(cfg.getParameter<double>("extraZKDBox")),//extra windown in Z when building the KDTree box (used in barrel)
     extraRKDBox(cfg.getParameter<double>("extraRKDBox")),//extra windown in R when building the KDTree box (used in endcap)
     extraPhiKDBox(cfg.getParameter<double>("extraPhiKDBox")),//extra windown in Phi when building the KDTree box
     fnSigmaRZ(cfg.getParameter<double>("fnSigmaRZ")),//this multiplies the max hit error on the layer when building the KDTree box
     chi2VsPtCut(cfg.getParameter<bool>("chi2VsPtCut")),
     maxChi2(cfg.getParameter<double>("maxChi2")),
     refitHits(cfg.getParameter<bool>("refitHits")),
     filterName_(cfg.getParameter<std::string>("ClusterShapeHitFilterName")),
     builderName_(cfg.existsAs<std::string>("TTRHBuilder") ? cfg.getParameter<std::string>("TTRHBuilder") : std::string("WithTrackAngle")),
     useSimpleMF_(false),
     mfName_("")
 {    
   if (useFixedPreFiltering)
     dphi = cfg.getParameter<double>("phiPreFiltering");
   if (chi2VsPtCut) {
     pt_interv = cfg.getParameter<std::vector<double> >("pt_interv");
     chi2_cuts = cfg.getParameter<std::vector<double> >("chi2_cuts");    
   }  
 #ifdef EDM_ML_DEBUG
   detIdsToDebug = cfg.getParameter<std::vector<int> >("detIdsToDebug");
   //if (detIdsToDebug.size()<3) //fixme
 #else
   detIdsToDebug.push_back(0);
   detIdsToDebug.push_back(0);
   detIdsToDebug.push_back(0);
 #endif
   // 2014/02/11 mia:
   // we should get rid of the boolean parameter useSimpleMF,
   // and use only a string magneticField [instead of SimpleMagneticField]
   // or better an edm::ESInputTag (at the moment HLT does not handle ESInputTag)
   if (cfg.exists("SimpleMagneticField")) {
     useSimpleMF_ = true;
     mfName_ = cfg.getParameter<std::string>("SimpleMagneticField");
   }
   filter = nullptr;
   bfield = nullptr;
   nomField = -1.;
 }

MultiHitGeneratorFromChi2::~MultiHitGeneratorFromChi2 ( )

override

Definition at line 101 of file MultiHitGeneratorFromChi2.cc.

101 {}

Member Function Documentation

void MultiHitGeneratorFromChi2::fillDescriptions ( edm::ParameterSetDescription & desc )

static

Definition at line 104 of file MultiHitGeneratorFromChi2.cc.

References edm::ParameterSetDescription::add(), MultiHitGeneratorFromPairAndLayers::fillDescriptions(), and AlCaHLTBitMon_QueryRunRegistry::string.

Referenced by MultiHitFromChi2EDProducer::fillDescriptions().

                                                                                  {
   MultiHitGeneratorFromPairAndLayers::fillDescriptions(desc);
 
   // fixed phi filtering
   desc.add<bool>("useFixedPreFiltering", false);
   desc.add<double>("phiPreFiltering", 0.3);
 
   // box properties
   desc.add<double>("extraHitRPhitolerance", 0);
   desc.add<double>("extraHitRZtolerance", 0);
   desc.add<double>("extraZKDBox", 0.2);
   desc.add<double>("extraRKDBox", 0.2);
   desc.add<double>("extraPhiKDBox", 0.005);
   desc.add<double>("fnSigmaRZ", 2.0);
 
   // refit&filter hits
   desc.add<bool>("refitHits", true);
   desc.add<std::string>("ClusterShapeHitFilterName", "ClusterShapeHitFilter");
   desc.add<std::string>("TTRHBuilder", "WithTrackAngle");
 
   // chi2 cuts
   desc.add<double>("maxChi2", 5.0);
   desc.add<bool>("chi2VsPtCut", true);
   desc.add<std::vector<double> >("pt_interv", std::vector<double>{{0.4,0.7,1.0,2.0}});
   desc.add<std::vector<double> >("chi2_cuts", std::vector<double>{{3.0,4.0,5.0,5.0}});
 
   // debugging
   desc.add<std::vector<int> >("detIdsToDebug", std::vector<int>{{0,0,0}});
 }

static const char* MultiHitGeneratorFromChi2::fillDescriptionsLabel ( )

inlinestatic

Definition at line 39 of file MultiHitGeneratorFromChi2.h.

References HiRegitMuonDetachedTripletStep_cff::doublets, ev, MultiHitGeneratorFromPairAndLayers::hitSets(), MultiHitGeneratorFromPairAndLayers::hitTriplets(), MultiHitGeneratorFromPairAndLayers::initES(), and mps_fire::result.

Referenced by MultiHitFromChi2EDProducer::fillDescriptions().

39 { return "multiHitFromChi2"; }

void MultiHitGeneratorFromChi2::hitSets	(	const TrackingRegion &	region,
		OrderedMultiHits &	trs,
		const edm::Event &	ev,
		const edm::EventSetup &	es,
		SeedingLayerSetsHits::SeedingLayerSet	pairLayers,
		std::vector< SeedingLayerSetsHits::SeedingLayer >	thirdLayers
	)

overridevirtual

Implements MultiHitGeneratorFromPairAndLayers.

Definition at line 173 of file MultiHitGeneratorFromChi2.cc.

References MultiHitGeneratorFromPairAndLayers::cache, HiRegitMuonDetachedTripletStep_cff::doublets, LogDebug, LogTrace, MultiHitGeneratorFromPairAndLayers::theLayerCache, and MultiHitGeneratorFromPairAndLayers::thePairGenerator.

Referenced by hitSets(), hitTriplets(), and MultiHitFromChi2EDProducer::produce().

 {
   LogDebug("MultiHitGeneratorFromChi2") << "pair: " << thePairGenerator->innerLayer(pairLayers).name() << "+" <<  thePairGenerator->outerLayer(pairLayers).name() << " 3rd lay size: " << thirdLayers.size();
 
   auto const & doublets = thePairGenerator->doublets(region,ev,es, pairLayers);
   LogTrace("MultiHitGeneratorFromChi2") << "";
   if (doublets.empty()) {
     //  LogDebug("MultiHitGeneratorFromChi2") << "empy pairs";                                                      
     return;
   }
 
   assert(theLayerCache);
   hitSets(region, result, ev, es, doublets, thirdLayers, *theLayerCache, cache);
 }

void MultiHitGeneratorFromChi2::hitSets	(	const TrackingRegion &	region,
		OrderedMultiHits &	trs,
		const edm::Event &	ev,
		const edm::EventSetup &	es,
		const HitDoublets &	doublets,
		const std::vector< SeedingLayerSetsHits::SeedingLayer > &	thirdLayers,
		LayerCacheType &	layerCache,
		cacheHits &	refittedHitStorage
	)

Definition at line 193 of file MultiHitGeneratorFromChi2.cc.

References hitSets(), and findQualityFiles::size.

                                                                        {
   int size = thirdLayers.size();
   const RecHitsSortedInPhi * thirdHitMap[size];
   vector<const DetLayer *> thirdLayerDetLayer(size,nullptr);
   for (int il=0; il<size; ++il) 
     {
       thirdHitMap[il] = &layerCache(thirdLayers[il], region, es);
 
       thirdLayerDetLayer[il] = thirdLayers[il].detLayer();
     }
   hitSets(region, result, es, doublets, thirdHitMap, thirdLayerDetLayer, size, refittedHitStorage);
 }

void MultiHitGeneratorFromChi2::hitSets	(	const TrackingRegion &	region,
		OrderedMultiHits &	result,
		const edm::EventSetup &	es,
		const HitDoublets &	doublets,
		const RecHitsSortedInPhi **	thirdHitMap,
		const std::vector< const DetLayer * > &	thirdLayerDetLayer,
		const int	nThirdLayers,
		cacheHits &	refittedHitStorage
	)

Definition at line 223 of file MultiHitGeneratorFromChi2.cc.

References RecHitsSortedInPhi::all(), angle(), TrajectoryStateOnSurface::charge(), vertices_cff::chi2, RZLine::chi2(), chi2_cuts, chi2VsPtCut, cloner, ThirdHitPredictionFromCircle::curvature(), PixelRecoUtilities::curvature(), declareDynArray, detIdsToDebug, dir, dphi, relativeConstraints::empty, mayown_ptr< T, N >::empty(), PV3DBase< T, PVType, FrameType >::eta(), extraHitRPhitolerance, extraHitRZtolerance, extraPhiKDBox, extraRKDBox, extraZKDBox, f, filter, objects.autophobj::float, fnSigmaRZ, TrajectoryStateOnSurface::globalMomentum(), HitDoublets::gp(), runTauDisplay::gp, HitDoublets::hit(), mps_fire::i, IfLogTrace, HitDoublets::inner, HitDoublets::innerLayer(), RecHitsSortedInPhi::isBarrel, ClusterShapeHitFilter::isCompatible(), edm::isNotFinite(), mayown_ptr< T, N >::isOwn(), GetRecoTauVFromDQM_MC_cff::kk, geometryCSVtoXML::line, LogTrace, M_PI, SiStripPI::max, maxChi2, SiStripMatchedRecHit2D::monoCluster(), SiStripMatchedRecHit2D::monoId(), eostools::move(), nomField, normalizedPhi(), ProjectedSiStripRecHit2D::originalHit(), TrackingRegion::originRBound(), HitDoublets::outer, HitDoublets::outerLayer(), PV3DBase< T, PVType, FrameType >::perp(), ThirdHitPredictionFromCircle::phi(), PV3DBase< T, PVType, FrameType >::phi(), GeometricSearchDet::position(), proxim(), EnergyCorrector::pt, pt_interv, TrackingRegion::ptMin(), TCMET_cfi::radius, rpcPointValidation_cfi::recHit, refit2Hits(), refitHits, mayown_ptr< T, N >::release(), ProxyBase11< T >::reset(), mayown_ptr< T, N >::reset(), rho, FastCircle::rho(), OrderedMultiHits::size(), HitDoublets::size(), SiStripMatchedRecHit2D::stereoCluster(), SiStripMatchedRecHit2D::stereoId(), MultiHitGeneratorFromPairAndLayers::theMaxElement, SiStripDetId::TIB, SiStripDetId::TID, Geom::twoPi(), mitigatedMETSequence_cff::U, ufield, useFixedPreFiltering, RecHitsSortedInPhi::v, and PV3DBase< T, PVType, FrameType >::z().

                                                                        {
 #ifdef EDM_ML_DEBUG
   unsigned int debug_Id0 = detIdsToDebug[0];
   unsigned int debug_Id1 = detIdsToDebug[1];
   unsigned int debug_Id2 = detIdsToDebug[2];
 #endif  
 
    std::array<bool, 3> bl;
    bl[0] = doublets.innerLayer().isBarrel;   
    bl[1] = doublets.outerLayer().isBarrel;
 
   //gc: these are all the layers compatible with the layer pairs (as defined in the config file)
 
 
   //gc: initialize a KDTree per each 3rd layer
   std::vector<KDTreeNodeInfo<RecHitsSortedInPhi::HitIter> > layerTree; // re-used throughout
   std::vector<RecHitsSortedInPhi::HitIter> foundNodes; // re-used thoughout
   foundNodes.reserve(100);
   declareDynArray(KDTreeLinkerAlgo<RecHitsSortedInPhi::HitIter>,nThirdLayers, hitTree);
   declareDynArray(LayerRZPredictions, nThirdLayers, mapPred);
   float rzError[nThirdLayers]; //save maximum errors
 
   const float maxDelphi = region.ptMin() < 0.3f ? float(M_PI)/4.f : float(M_PI)/8.f; // FIXME move to config??
   const float maxphi = M_PI+maxDelphi, minphi = -maxphi; // increase to cater for any range
   const float safePhi = M_PI-maxDelphi; // sideband
 
 
   //gc: loop over each layer
   for(int il = 0; il < nThirdLayers; il++) {
     LogTrace("MultiHitGeneratorFromChi2") << "considering third layer: with hits: " << thirdHitMap[il]->all().second-thirdHitMap[il]->all().first;
     const DetLayer *layer = thirdLayerDetLayer[il];
     LayerRZPredictions &predRZ = mapPred[il];
     predRZ.line.initLayer(layer);
     predRZ.line.initTolerance(extraHitRZtolerance);
 
     //gc: now we take all hits in the layer and fill the KDTree    
     auto const & layer3 = *thirdHitMap[il]; // Get iterators
     layerTree.clear();
     float minz=999999.0f, maxz= -minz; // Initialise to extreme values in case no hits
     float maxErr=0.0f;
     if (!layer3.empty())
       { 
         minz = layer3.v[0] ;
     maxz = minz; //In case there's only one hit on the layer
     for (auto i=0U; i<layer3.size(); ++i)
       { 
             auto hi = layer3.theHits.begin()+i;
             auto angle = layer3.phi(i);
         auto myz = layer3.v[i];
 #ifdef EDM_ML_DEBUG
             IfLogTrace(hi->hit()->rawId()==debug_Id2, "MultiHitGeneratorFromChi2") << "filling KDTree with hit in id=" << debug_Id2
                                                                                    << " with pos: " << hi->hit()->globalPosition()
                                                                                    << " phi=" << hi->hit()->globalPosition().phi()
                                                                                    << " z=" << hi->hit()->globalPosition().z()
                                                                                    << " r=" << hi->hit()->globalPosition().perp();
 #endif
         //use (phi,r) for endcaps rather than (phi,z)
         if (myz < minz) { minz = myz;} else { if (myz > maxz) {maxz = myz;}}
         auto myerr = layer3.dv[i];
         if (myerr > maxErr) { maxErr = myerr;}
         layerTree.push_back(KDTreeNodeInfo<RecHitsSortedInPhi::HitIter>(hi, angle, myz)); // save it
             // populate side-bands
             if (angle>safePhi) layerTree.push_back(KDTreeNodeInfo<RecHitsSortedInPhi::HitIter>(hi, angle-Geom::twoPi(), myz));
             else if (angle<-safePhi) layerTree.push_back(KDTreeNodeInfo<RecHitsSortedInPhi::HitIter>(hi, angle+Geom::twoPi(), myz));
       }
       }
     KDTreeBox phiZ(minphi, maxphi, minz-0.01f, maxz+0.01f);  // declare our bounds
     //add fudge factors in case only one hit and also for floating-point inaccuracy
     hitTree[il].build(layerTree, phiZ); // make KDtree
     rzError[il] = maxErr; //save error
   }
   //gc: now we have initialized the KDTrees and we are out of the layer loop
   
   //gc: this sets the minPt of the triplet
   auto curv = PixelRecoUtilities::curvature(1. / region.ptMin(), es);
 
   LogTrace("MultiHitGeneratorFromChi2") << "doublet size=" << doublets.size() << std::endl;
 
       //fixme add pixels
       auto filterHit = [&](TrackingRecHit const * hit, GlobalVector const& dir)->bool {
         auto hh = reinterpret_cast<BaseTrackerRecHit const *>(hit); 
         if (//hh->geographicalId().subdetId() > 2
           hh->geographicalId().subdetId()==SiStripDetId::TIB
           || hh->geographicalId().subdetId()==SiStripDetId::TID
           //|| hh->geographicalId().subdetId()==SiStripDetId::TOB
           //|| hh->geographicalId().subdetId()==SiStripDetId::TEC
           ) {
           // carefull " for matched and projected local of tsos != local for individual clusters...
           if (hh->isMatched()) {
             const SiStripMatchedRecHit2D* matchedHit = reinterpret_cast<const SiStripMatchedRecHit2D *>(hh);
             if (filter->isCompatible(DetId(matchedHit->monoId()), matchedHit->monoCluster(), dir)==0 ||
                 filter->isCompatible(DetId(matchedHit->stereoId()), matchedHit->stereoCluster(), dir)==0) return false;
           } else if (hh->isProjected()) {
             const ProjectedSiStripRecHit2D* precHit = reinterpret_cast<const ProjectedSiStripRecHit2D *>(hh);
             if (filter->isCompatible(precHit->originalHit(), dir)==0) return false;   //FIXME??
           } else if (hh->isSingle()) {
             const SiStripRecHit2D* recHit = reinterpret_cast<const SiStripRecHit2D *>(hh);
             if (filter->isCompatible(*recHit, dir)==0) return false;
           }
         }
         return true;
       };
 
   //gc: now we loop over all pairs
   for (std::size_t ip =0; ip!=doublets.size(); ip++) {
 
     int foundTripletsFromPair = 0;
     bool usePair = false;
     cacheHitPointer bestH2;
     float minChi2 = std::numeric_limits<float>::max();
 
     SeedingHitSet::ConstRecHitPointer oriHit0 =doublets.hit(ip,HitDoublets::inner);
     SeedingHitSet::ConstRecHitPointer oriHit1 =doublets.hit(ip,HitDoublets::outer);
 
     HitOwnPtr hit0(*oriHit0);
     HitOwnPtr hit1(*oriHit1);
     GlobalPoint gp0 = doublets.gp(ip,HitDoublets::inner);
     GlobalPoint gp1 = doublets.gp(ip,HitDoublets::outer);
 
 #ifdef EDM_ML_DEBUG
     bool debugPair = oriHit0->rawId()==debug_Id0 && oriHit1->rawId()==debug_Id1;
 #endif
     IfLogTrace(debugPair, "MultiHitGeneratorFromChi2") << endl << endl
                                                        << "found new pair with ids "<<oriHit0->rawId()<<" "<<oriHit1->rawId()<<" with pos: " << gp0 << " " << gp1;
 
     if (refitHits) {
 
       TrajectoryStateOnSurface tsos0, tsos1;
       assert(!hit0.isOwn()); assert(!hit1.isOwn());
 #ifdef EDM_ML_DEBUG
       refit2Hits(hit0,hit1,tsos0,tsos1,region,nomField,debugPair);
 #else
       refit2Hits(hit0,hit1,tsos0,tsos1,region,nomField,false);
 #endif
 
       bool passFilterHit0 = filterHit(hit0->hit(),tsos0.globalMomentum());
       IfLogTrace(debugPair&&!passFilterHit0, "MultiHitGeneratorFromChi2") << "hit0 did not pass cluster shape filter";
       if (!passFilterHit0) continue;
       bool passFilterHit1 = filterHit(hit1->hit(),tsos1.globalMomentum());
       IfLogTrace(debugPair&&!passFilterHit1, "MultiHitGeneratorFromChi2") << "hit1 did not pass cluster shape filter";
       if (!passFilterHit1) continue;
       // refit hits
       hit0.reset((SeedingHitSet::RecHitPointer)(cloner(*hit0,tsos0)));
       hit1.reset((SeedingHitSet::RecHitPointer)(cloner(*hit1,tsos1)));
 
 #ifdef EDM_ML_DEBUG
       IfLogTrace(debugPair, "MultiHitGeneratorFromChi2") << "charge=" << tsos0.charge() << std::endl
                                                        << "state1 pt=" << tsos0.globalMomentum().perp() << " eta=" << tsos0.globalMomentum().eta()  << " phi=" << tsos0.globalMomentum().phi() << std::endl
                                                        << "state2 pt=" << tsos1.globalMomentum().perp() << " eta=" << tsos1.globalMomentum().eta()  << " phi=" << tsos1.globalMomentum().phi() << std::endl
                                                        << "positions after refitting: " << hit0->globalPosition() << " " << hit1->globalPosition();
 #endif 
     } else {
       // not refit clone anyhow
       hit0.reset((BaseTrackerRecHit *)hit0->clone());
       hit1.reset((BaseTrackerRecHit *)hit1->clone());
     }
 
     assert(hit0.isOwn()); assert(hit1.isOwn());
 
 
     //gc: create the RZ line for the pair
     SimpleLineRZ line(PixelRecoPointRZ(gp0.perp(),gp0.z()), PixelRecoPointRZ(gp1.perp(),gp1.z()));
     ThirdHitPredictionFromCircle predictionRPhi(gp0, gp1, extraHitRPhitolerance);
 
     auto toPos = std::signbit(gp1.z()-gp0.z());
 
 
     //gc: this is the curvature of the two hits assuming the region
     Range pairCurvature = predictionRPhi.curvature(region.originRBound());
     //gc: intersect not only returns a bool but may change pairCurvature to intersection with curv
     if (!intersect(pairCurvature, Range(-curv, curv))) {
       IfLogTrace(debugPair, "MultiHitGeneratorFromChi2") << "curvature cut: curv=" << curv 
                                                          << " gc=(" << pairCurvature.first << ", " << pairCurvature.second << ")";
       continue;
     }
 
 
     std::array<GlobalPoint, 3> gp;
     std::array<GlobalError, 3> ge;
     gp[0] = hit0->globalPosition();
     ge[0] = hit0->globalPositionError();
     gp[1] = hit1->globalPosition();
     ge[1] = hit1->globalPositionError();
 
 
     //gc: loop over all third layers compatible with the pair
     for(int il = 0; (il < nThirdLayers) & (!usePair); il++) {
       IfLogTrace(debugPair, "MultiHitGeneratorFromChi2") << "cosider layer:" << " for this pair. Location: " << thirdLayerDetLayer[il]->location();
 
       if (hitTree[il].empty()) {
     IfLogTrace(debugPair, "MultiHitGeneratorFromChi2") << "empty hitTree";
     continue; // Don't bother if no hits
       }
 
       cacheHitPointer bestL2;
       float chi2FromThisLayer = std::numeric_limits<float>::max();
 
       const DetLayer *layer = thirdLayerDetLayer[il];
       // bool barrelLayer = layer->location() == GeomDetEnumerators::barrel;
       auto const & layer3 = *thirdHitMap[il];
       bool barrelLayer = layer3.isBarrel;
       bl[2] = layer3.isBarrel;
 
       if ( (!barrelLayer) & (toPos != std::signbit(layer->position().z())) ) continue;
 
 
       LayerRZPredictions &predRZ = mapPred[il];
       predRZ.line.initPropagator(&line);
       
       //gc: this takes the z at R-thick/2 and R+thick/2 according to 
       //    the line from the two points and the adds the extra tolerance
       Range rzRange = predRZ.line();
 
       if (rzRange.first >= rzRange.second) {
     IfLogTrace(debugPair, "MultiHitGeneratorFromChi2") << "rzRange empty";
         continue;
       }
       //gc: check that rzRange is compatible with detector bounds
       //    note that intersect may change rzRange to intersection with bounds
       if (!intersect(rzRange, predRZ.line.detSize())) {// theDetSize = Range(-maxZ, maxZ); 
     IfLogTrace(debugPair, "MultiHitGeneratorFromChi2") << "rzRange and detector do not intersect";
     continue;
       }
       Range radius = barrelLayer ? predRZ.line.detRange() : rzRange;
 
       //gc: define the phi range of the hits
       Range phiRange;
       if (useFixedPreFiltering) { 
     //gc: in this case it takes as range the phi of the outer 
     //    hit +/- the phiPreFiltering value from cfg
         float phi0 = oriHit0->globalPosition().phi();
         phiRange = Range(phi0 - dphi, phi0 + dphi);
       } else {  
     //gc: predictionRPhi uses the cosine rule to find the phi of the 3rd point at radius, assuming the pairCurvature range [-c,+c]
     if (pairCurvature.first<0. && pairCurvature.second<0.) {
           radius.swap();
     } else if (pairCurvature.first>=0. && pairCurvature.second>=0.) {;}
         else {
       radius.first=radius.second;
         }
         auto phi12 = predictionRPhi.phi(pairCurvature.first,radius.first);
     auto phi22 = predictionRPhi.phi(pairCurvature.second,radius.second);
         phi12 = normalizedPhi(phi12);
         phi22 = proxim(phi22,phi12);
     phiRange = Range(phi12,phi22); phiRange.sort();
       }
        
       float prmin=phiRange.min(), prmax=phiRange.max();
  
       if (prmax-prmin>maxDelphi) {
         auto prm = phiRange.mean();
         prmin = prm - 0.5f*maxDelphi;
         prmax = prm + 0.5f*maxDelphi;
       }
 
 
       //gc: this is the place where hits in the compatible region are put in the foundNodes
       using Hit=RecHitsSortedInPhi::Hit;
       foundNodes.clear(); // Now recover hits in bounding box...
 
 
 
       IfLogTrace(debugPair, "MultiHitGeneratorFromChi2") << "defining kd tree box";
 
       if (barrelLayer) {
     KDTreeBox phiZ(prmin-extraPhiKDBox, prmax+extraPhiKDBox,
                rzRange.min()-fnSigmaRZ*rzError[il]-extraZKDBox,
                rzRange.max()+fnSigmaRZ*rzError[il]+extraZKDBox);
     hitTree[il].search(phiZ, foundNodes);
 
     IfLogTrace(debugPair, "MultiHitGeneratorFromChi2") << "kd tree box bounds, phi: " << prmin-extraPhiKDBox <<","<< prmax+extraPhiKDBox
                                                            << " z: "<< rzRange.min()-fnSigmaRZ*rzError[il]-extraZKDBox <<","<<rzRange.max()+fnSigmaRZ*rzError[il]+extraZKDBox
                                                            << " rzRange: " << rzRange.min() <<","<<rzRange.max();
 
       } else {
     KDTreeBox phiR(prmin-extraPhiKDBox, prmax+extraPhiKDBox,
                rzRange.min()-fnSigmaRZ*rzError[il]-extraRKDBox,
                rzRange.max()+fnSigmaRZ*rzError[il]+extraRKDBox);
     hitTree[il].search(phiR, foundNodes);
 
     IfLogTrace(debugPair, "MultiHitGeneratorFromChi2") << "kd tree box bounds, phi: " << prmin-extraPhiKDBox <<","<< prmax+extraPhiKDBox
                                                            << " r: "<< rzRange.min()-fnSigmaRZ*rzError[il]-extraRKDBox <<","<<rzRange.max()+fnSigmaRZ*rzError[il]+extraRKDBox
                                                            << " rzRange: " << rzRange.min() <<","<<rzRange.max();
       }
 
       IfLogTrace(debugPair, "MultiHitGeneratorFromChi2") << "kd tree box size: " << foundNodes.size();
       
 
       //gc: now we loop over the hits in the box for this layer
       for (std::vector<RecHitsSortedInPhi::HitIter>::iterator ih = foundNodes.begin();
        ih !=foundNodes.end() && !usePair; ++ih) {
 
     IfLogTrace(debugPair, "MultiHitGeneratorFromChi2") << endl << "triplet candidate";
 
     const RecHitsSortedInPhi::HitIter KDdata = *ih;
 
     auto oriHit2 = KDdata->hit();
         auto kk = KDdata - layer3.theHits.begin();
     cacheHitPointer hit2;
         auto gp2 = layer3.gp(kk);
     if (refitHits) {//fixme
 
       //fitting all 3 hits takes too much time... do it quickly only for 3rd hit
       GlobalVector initMomentum(gp2 - gp1);
       initMomentum /= initMomentum.perp(); //set pT=1
 
       //fixme add pixels
       bool passFilterHit2 = filterHit(oriHit2->hit(),initMomentum);
       if (!passFilterHit2) continue;
       TrajectoryStateOnSurface state(GlobalTrajectoryParameters(gp2, initMomentum, 1, &ufield),*oriHit2->surface());
           hit2.reset((SeedingHitSet::RecHitPointer)(cloner(*oriHit2,state)));
 
     } else {
       // not refit clone anyhow
       hit2.reset((BaseTrackerRecHit*)oriHit2->clone());
     }
 
     //gc: add the chi2 cut
     gp[2] = hit2->globalPosition();
     ge[2] = hit2->globalPositionError();
     RZLine rzLine(gp,ge,bl);
     float chi2 = rzLine.chi2();
 
 #ifdef EDM_ML_DEBUG
     bool debugTriplet = debugPair && hit2->rawId()==debug_Id2;
 #endif
     IfLogTrace(debugTriplet, "MultiHitGeneratorFromChi2") << endl << "triplet candidate in debug id" << std::endl
                                                               << "hit in id="<<hit2->rawId()<<" (from KDTree) with pos: " << KDdata->hit()->globalPosition()
                                                               << " refitted: " << hit2->globalPosition() 
                                                               << " chi2: " << chi2;
     // should fix nan
     if ( (chi2 > maxChi2) | edm::isNotFinite(chi2) ) continue; 
 
     if (chi2VsPtCut) {
 
       FastCircle theCircle(gp[2],gp[1],gp[0]);
       float tesla0 = 0.1f*nomField;
       float rho = theCircle.rho();
       float cm2GeV = 0.01f * 0.3f*tesla0;
       float pt = cm2GeV * rho;
       IfLogTrace(debugTriplet, "MultiHitGeneratorFromChi2") << "triplet pT=" << pt;
       if (pt<region.ptMin()) continue;
       
       if (chi2_cuts.size()==4) {
         if ( ( pt>pt_interv[0] && pt<=pt_interv[1] && chi2 > chi2_cuts[0] ) ||
          ( pt>pt_interv[1] && pt<=pt_interv[2] && chi2 > chi2_cuts[1] ) ||
          ( pt>pt_interv[2] && pt<=pt_interv[3] && chi2 > chi2_cuts[2] ) ||
          ( pt>pt_interv[3] && chi2 > chi2_cuts[3] ) ) continue;     
       }
       
       // apparently this takes too much time...
       //      if (chi2_cuts.size()>1) {     
       //        int ncuts = chi2_cuts.size();
       //        if ( pt<=pt_interv[0] && chi2 > chi2_cuts[0] ) continue; 
       //        bool pass = true;
       //        for (int icut=1; icut<ncuts-1; icut++){
       //          if ( pt>pt_interv[icut-1] && pt<=pt_interv[icut] && chi2 > chi2_cuts[icut] ) pass=false;
       //        }
       //        if (!pass) continue;
       //        if ( pt>pt_interv[ncuts-2] && chi2 > chi2_cuts[ncuts-1] ) continue;         
       //        if (hit0->rawId()==debug_Id0 && hit1->rawId()==debug_Id1 && hit2->rawId()==debug_Id2) {
       //          LogTrace("MultiHitGeneratorFromChi2") << "triplet passed chi2 vs pt cut" << std::endl;
       //        }
       //      } 
       
     }
     
     if (theMaxElement!=0 && result.size() >= theMaxElement) {
       result.clear();
       edm::LogError("TooManyTriplets")<<" number of triples exceed maximum. no triplets produced.";
       return;
     }
     IfLogTrace(debugPair, "MultiHitGeneratorFromChi2") << "triplet made";
     //result.push_back(SeedingHitSet(hit0, hit1, hit2));
     /* no refit so keep only hit2
     assert(tripletFromThisLayer.empty());
     assert(hit0.isOwn()); assert(hit1.isOwn());assert(hit2.isOwn());
     tripletFromThisLayer.emplace_back(std::move(hit0));
     tripletFromThisLayer.emplace_back(std::move(hit1));
     tripletFromThisLayer.emplace_back(std::move(hit2));
     assert(hit0.isEmpty()); assert(hit1.isEmpty());assert(hit2.isEmpty());
     */
     bestL2 = std::move(hit2);
     chi2FromThisLayer = chi2;
     foundTripletsFromPair++;
     if (foundTripletsFromPair>=2) {
       usePair=true;
       IfLogTrace(debugPair, "MultiHitGeneratorFromChi2") << "using pair";
       break;
     }
       }//loop over hits in KDTree
 
       if (usePair) break;
       else {
     //if there is one triplet in more than one layer, try picking the one with best chi2
     if (chi2FromThisLayer<minChi2) {
       bestH2 = std::move(bestL2);
       minChi2 = chi2FromThisLayer;
     }
     /*
     else {
       if (!bestH2 && foundTripletsFromPair>0)
         LogTrace("MultiHitGeneratorFromChi2") << "what?? " <<  minChi2 << ' '  << chi2FromThisLayer;
     }
     */
       }
 
     }//loop over layers
 
     if (foundTripletsFromPair==0) continue;
 
     //push back only (max) once per pair
     IfLogTrace(debugPair, "MultiHitGeneratorFromChi2") << "Done seed #" << result.size();
     if (usePair) result.push_back(SeedingHitSet(oriHit0, oriHit1)); 
     else { 
       assert(1==foundTripletsFromPair);
       assert(bestH2);
       result.emplace_back(&*hit0,&*hit1,&*bestH2); 
       assert(hit0.isOwn()); assert(hit1.isOwn());
       refittedHitStorage.emplace_back(const_cast<BaseTrackerRecHit*>(hit0.release()));
       refittedHitStorage.emplace_back(const_cast<BaseTrackerRecHit*>(hit1.release()));
       refittedHitStorage.emplace_back(std::move(bestH2));
       assert(hit0.empty()); assert(hit1.empty());assert(!bestH2);
     }
     // LogTrace("MultiHitGeneratorFromChi2") << (usePair ? "pair " : "triplet ") << minChi2 <<' ' << refittedHitStorage.size();
 
 
   }//loop over pairs
   LogTrace("MultiHitGeneratorFromChi2") << "triplet size=" << result.size();
   // std::cout << "MultiHitGeneratorFromChi2 " << "triplet size=" << result.size() << std::endl;
 }

void MultiHitGeneratorFromChi2::hitTriplets	(	const TrackingRegion &	region,
		OrderedMultiHits &	result,
		const edm::EventSetup &	es,
		const HitDoublets &	doublets,
		const RecHitsSortedInPhi **	thirdHitMap,
		const std::vector< const DetLayer * > &	thirdLayerDetLayer,
		const int	nThirdLayers
	)

overridevirtual

Implements MultiHitGeneratorFromPairAndLayers.

Definition at line 211 of file MultiHitGeneratorFromChi2.cc.

References MultiHitGeneratorFromPairAndLayers::cache, and hitSets().

 {
   hitSets(region, result, es, doublets, thirdHitMap, thirdLayerDetLayer, nThirdLayers, cache);
 }

void MultiHitGeneratorFromChi2::initES ( const edm::EventSetup & es )

overridevirtual

Implements MultiHitGeneratorFromPairAndLayers.

Definition at line 135 of file MultiHitGeneratorFromChi2.cc.

References bfield, builder, builderName_, cloner, filter, filterName_, edm::EventSetup::get(), mfName_, nomField, MagneticField::nominalValue(), edm::ESHandle< T >::product(), refitHits, edm::second(), UniformMagneticField::set(), ufield, and useSimpleMF_.

Referenced by MultiHitFromChi2EDProducer::produce().

 {
 
   edm::ESHandle<MagneticField> bfield_h;
   if (useSimpleMF_) es.get<IdealMagneticFieldRecord>().get(mfName_, bfield_h);  
   else es.get<IdealMagneticFieldRecord>().get(bfield_h);
   bfield = bfield_h.product();
   nomField = bfield->nominalValue();
   ufield.set(nomField);  // more than enough (never actually used)
 
   if(refitHits)
   {
       edm::ESHandle<ClusterShapeHitFilter> filterHandle_;
       es.get<CkfComponentsRecord>().get(filterName_, filterHandle_);
       filter = filterHandle_.product();
       
       edm::ESHandle<TransientTrackingRecHitBuilder> builderH;
       es.get<TransientRecHitRecord>().get(builderName_, builderH);
       builder = (TkTransientTrackingRecHitBuilder const *)(builderH.product());
       cloner = (*builder).cloner();
   }
 }

void MultiHitGeneratorFromChi2::refit2Hits	(	HitOwnPtr &	hit0,
		HitOwnPtr &	hit1,
		TrajectoryStateOnSurface &	tsos0,
		TrajectoryStateOnSurface &	tsos1,
		const TrackingRegion &	region,
		float	nomField,
		bool	isDebug
	)

private

Definition at line 661 of file MultiHitGeneratorFromChi2.cc.

References IfLogTrace, nomField, TrackingRegion::origin(), p1, p2, PV3DBase< T, PVType, FrameType >::perp(), EnergyCorrector::pt, lumiQueryAPI::q, rho, FastCircle::rho(), edm::swap(), ufield, PV3DBase< T, PVType, FrameType >::x(), FastCircle::x0(), y, PV3DBase< T, PVType, FrameType >::y(), FastCircle::y0(), and PV3DBase< T, PVType, FrameType >::z().

Referenced by hitSets().

                                                                                    {
 
   //these need to be sorted in R
   const GlobalPoint& gp0 = region.origin();
   GlobalPoint gp1 = hit1->globalPosition();
   GlobalPoint gp2 = hit2->globalPosition();
 
   IfLogTrace(isDebug, "MultiHitGeneratorFromChi2") << "positions before refitting: " << hit1->globalPosition() << " " << hit2->globalPosition();
 
   FastCircle theCircle(gp2,gp1,gp0);
   GlobalPoint cc(theCircle.x0(),theCircle.y0(),0);
   float tesla0 = 0.1f*nomField;
   float rho = theCircle.rho();
   float cm2GeV = 0.01f * 0.3f*tesla0;
   float pt = cm2GeV * rho;
 
   GlobalVector vec20 = gp2-gp0;
   //if (isDebug) { cout << "vec20.eta=" << vec20.eta() << endl; }
 
   GlobalVector p0( gp0.y()-cc.y(), -gp0.x()+cc.x(), 0. );
   p0 = p0*pt/p0.perp();
   GlobalVector p1( gp1.y()-cc.y(), -gp1.x()+cc.x(), 0. );
   p1 = p1*pt/p1.perp();
   GlobalVector p2( gp2.y()-cc.y(), -gp2.x()+cc.x(), 0. );
   p2 = p2*pt/p2.perp();
 
   //check sign according to scalar product
   if ( (p0.x()*(gp1.x()-gp0.x())+p0.y()*(gp1.y()-gp0.y()) ) < 0 ) {
     p0*=-1.;
     p1*=-1.;
     p2*=-1.;
   }
 
   //now set z component
   auto zv = vec20.z()/vec20.perp();
   p0 = GlobalVector(p0.x(),p0.y(),p0.perp()*zv);
   p1 = GlobalVector(p1.x(),p1.y(),p1.perp()*zv);
   p2 = GlobalVector(p2.x(),p2.y(),p2.perp()*zv);
 
   //get charge from vectorial product
   TrackCharge q = 1;
   if ((gp1-cc).x()*p1.y() - (gp1-cc).y()*p1.x() > 0) q =-q;
 
   TrajectoryStateOnSurface(GlobalTrajectoryParameters(gp1, p1, q, &ufield),*hit1->surface()).swap(state1);
   // hit1.reset((SeedingHitSet::RecHitPointer)(cloner(*hit1,state1)));
 
   TrajectoryStateOnSurface(GlobalTrajectoryParameters(gp2, p2, q, &ufield),*hit2->surface()).swap(state2);
   // hit2.reset((SeedingHitSet::RecHitPointer)(cloner(*hit2,state2)));
 
 }