#include <LinkingAlgoByDirectionGeometric.h>

Inheritance diagram for ticl::LinkingAlgoByDirectionGeometric:

Public Member Functions
void	initialize (const HGCalDDDConstants *hgcons, const hgcal::RecHitTools rhtools, const edm::ESHandle< MagneticField > bfieldH, const edm::ESHandle< Propagator > propH) override

	LinkingAlgoByDirectionGeometric (const edm::ParameterSet &conf)

void	linkTracksters (const edm::Handle< std::vector< reco::Track >>, const edm::ValueMap< float > &, const edm::ValueMap< float > &, const edm::ValueMap< float > &, const std::vector< reco::Muon > &, const edm::Handle< std::vector< Trackster >>, std::vector< TICLCandidate > &, std::vector< TICLCandidate > &) override

	~LinkingAlgoByDirectionGeometric () override

Public Member Functions inherited from ticl::LinkingAlgoBase
	LinkingAlgoBase (const edm::ParameterSet &conf)

virtual	~LinkingAlgoBase ()

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

Static Public Member Functions inherited from ticl::LinkingAlgoBase
static void	fillPSetDescription (edm::ParameterSetDescription &desc)

Private Types
typedef math::XYZVector	Vector

Private Member Functions
void	buildLayers ()

void	dumpLinksFound (std::vector< std::vector< unsigned >> &resultCollection, const char *label) const

void	findTrackstersInWindow (const std::vector< std::pair< Vector, unsigned >> &seedingCollection, const std::array< TICLLayerTile, 2 > &tracksterTiles, const std::vector< Vector > &tracksterPropPoints, float delta, unsigned trackstersSize, std::vector< std::vector< unsigned >> &resultCollection, bool useMask)

math::XYZVector	propagateTrackster (const Trackster &t, const unsigned idx, float zVal, std::array< TICLLayerTile, 2 > &tracksterTiles)

void	recordTrackster (const unsigned ts, const std::vector< Trackster > &tracksters, const edm::Handle< std::vector< Trackster >> tsH, std::vector< unsigned > &ts_mask, float &energy_in_candidate, TICLCandidate &candidate)

bool	timeAndEnergyCompatible (float &total_raw_energy, const reco::Track &track, const Trackster &trackster, const float &tkTime, const float &tkTimeErr, const float &tkTimeQual)

Private Attributes
edm::ESHandle< MagneticField >	bfield_

const StringCutObjectSelector< reco::Track >	cutTk_

const float	del_tk_ts_int_

const float	del_tk_ts_layer1_

const float	del_ts_em_had_

const float	del_ts_had_had_

std::unique_ptr< GeomDet >	firstDisk_ [2]

const HGCalDDDConstants *	hgcons_

std::once_flag	initializeGeometry_

std::unique_ptr< GeomDet >	interfaceDisk_ [2]

const float	maxDeltaT_ = 3.0f

edm::ESHandle< Propagator >	propagator_

hgcal::RecHitTools	rhtools_

const float	timing_quality_threshold_

const float	tkEnergyCut_ = 2.0f

Additional Inherited Members
Protected Attributes inherited from ticl::LinkingAlgoBase
int	algo_verbosity_

Detailed Description

Definition at line 25 of file LinkingAlgoByDirectionGeometric.h.

Member Typedef Documentation

◆ Vector

typedef math::XYZVector ticl::LinkingAlgoByDirectionGeometric::Vector

private

Definition at line 47 of file LinkingAlgoByDirectionGeometric.h.

Constructor & Destructor Documentation

◆ LinkingAlgoByDirectionGeometric()

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

Definition at line 16 of file LinkingAlgoByDirectionGeometric.cc.

     : LinkingAlgoBase(conf),
       del_tk_ts_layer1_(conf.getParameter<double>("delta_tk_ts_layer1")),
       del_tk_ts_int_(conf.getParameter<double>("delta_tk_ts_interface")),
       del_ts_em_had_(conf.getParameter<double>("delta_ts_em_had")),
       del_ts_had_had_(conf.getParameter<double>("delta_ts_had_had")),
       timing_quality_threshold_(conf.getParameter<double>("track_time_quality_threshold")),
       cutTk_(conf.getParameter<std::string>("cutTk")) {}

◆ ~LinkingAlgoByDirectionGeometric()

LinkingAlgoByDirectionGeometric::~LinkingAlgoByDirectionGeometric ( )

override

Definition at line 25 of file LinkingAlgoByDirectionGeometric.cc.

25 {}

Member Function Documentation

◆ buildLayers()

void LinkingAlgoByDirectionGeometric::buildLayers ( )

private

Definition at line 201 of file LinkingAlgoByDirectionGeometric.cc.

References Disk::build(), firstDisk_, hgcal::RecHitTools::getPositionLayer(), hgcons_, interfaceDisk_, hgcal::RecHitTools::lastLayerEE(), HGCalDDDConstants::rangeR(), rhtools_, and HGCalDDDConstants::waferZ().

Referenced by initialize().

                                                   {
   // build disks at HGCal front & EM-Had interface for track propagation
 
   float zVal = hgcons_->waferZ(1, true);
   std::pair<float, float> rMinMax = hgcons_->rangeR(zVal, true);
 
   float zVal_interface = rhtools_.getPositionLayer(rhtools_.lastLayerEE()).z();
   std::pair<float, float> rMinMax_interface = hgcons_->rangeR(zVal_interface, true);
 
   for (int iSide = 0; iSide < 2; ++iSide) {
     float zSide = (iSide == 0) ? (-1. * zVal) : zVal;
     firstDisk_[iSide] =
         std::make_unique<GeomDet>(Disk::build(Disk::PositionType(0, 0, zSide),
                                               Disk::RotationType(),
                                               SimpleDiskBounds(rMinMax.first, rMinMax.second, zSide - 0.5, zSide + 0.5))
                                       .get());
 
     zSide = (iSide == 0) ? (-1. * zVal_interface) : zVal_interface;
     interfaceDisk_[iSide] = std::make_unique<GeomDet>(
         Disk::build(Disk::PositionType(0, 0, zSide),
                     Disk::RotationType(),
                     SimpleDiskBounds(rMinMax_interface.first, rMinMax_interface.second, zSide - 0.5, zSide + 0.5))
             .get());
   }
 }

◆ dumpLinksFound()

void LinkingAlgoByDirectionGeometric::dumpLinksFound	(	std::vector< std::vector< unsigned >> &	resultCollection,
		const char *	label
	)		const

private

Definition at line 182 of file LinkingAlgoByDirectionGeometric.cc.

References ticl::Advanced, ticl::LinkingAlgoBase::algo_verbosity_, mps_fire::i, dqmiolumiharvest::j, label, electronStore::links, and LogDebug.

Referenced by linkTracksters().

                                                                               {
 #ifdef EDM_ML_DEBUG
   if (!(LinkingAlgoBase::algo_verbosity_ > VerbosityLevel::Advanced))
     return;
 
   LogDebug("LinkingAlgoByDirectionGeometric") << "All links found - " << label << "\n";
   LogDebug("LinkingAlgoByDirectionGeometric") << "(seed can either be a track or trackster depending on the step)\n";
   for (unsigned i = 0; i < resultCollection.size(); ++i) {
     LogDebug("LinkingAlgoByDirectionGeometric") << "seed " << i << " - tracksters : ";
     const auto &links = resultCollection[i];
     for (unsigned j = 0; j < links.size(); ++j) {
       LogDebug("LinkingAlgoByDirectionGeometric") << j;
     }
     LogDebug("LinkingAlgoByDirectionGeometric") << "\n";
   }
 #endif  // EDM_ML_DEBUG
 }

◆ fillPSetDescription()

void LinkingAlgoByDirectionGeometric::fillPSetDescription ( edm::ParameterSetDescription & desc )

static

Definition at line 511 of file LinkingAlgoByDirectionGeometric.cc.

References submitPVResolutionJobs::desc, ticl::LinkingAlgoBase::fillPSetDescription(), and AlCaHLTBitMon_QueryRunRegistry::string.

                                                                                           {
   desc.add<std::string>("cutTk",
                         "1.48 < abs(eta) < 3.0 && pt > 1. && quality(\"highPurity\") && "
                         "hitPattern().numberOfLostHits(\"MISSING_OUTER_HITS\") < 5");
   desc.add<double>("delta_tk_ts_layer1", 0.02);
   desc.add<double>("delta_tk_ts_interface", 0.03);
   desc.add<double>("delta_ts_em_had", 0.03);
   desc.add<double>("delta_ts_had_had", 0.03);
   desc.add<double>("track_time_quality_threshold", 0.5);
   LinkingAlgoBase::fillPSetDescription(desc);
 }

◆ findTrackstersInWindow()

void LinkingAlgoByDirectionGeometric::findTrackstersInWindow	(	const std::vector< std::pair< Vector, unsigned >> &	seedingCollection,
		const std::array< TICLLayerTile, 2 > &	tracksterTiles,
		const std::vector< Vector > &	tracksterPropPoints,
		float	delta,
		unsigned	trackstersSize,
		std::vector< std::vector< unsigned >> &	resultCollection,
		bool	useMask = `false`
	)

private

Definition at line 72 of file LinkingAlgoByDirectionGeometric.cc.

References funct::abs(), dumpMFGeometry_cfg::delta, egammaIdentification::eta_max, egammaIdentification::eta_min, mps_fire::i, dqmdumpme::indices, dqmiolumiharvest::j, gpuClustering::pixelStatus::mask, SiStripPI::max, ticl::TileConstants::maxEta, SiStripPI::min, ticl::TileConstants::minEta, ticl::TileConstants::nPhiBins, VtxSmearedParameters_cfi::Phi, and jetsAK4_CHS_cff::sort.

Referenced by linkTracksters().

                           {
   // Finds tracksters in tracksterTiles within an eta-phi window
   // (given by delta) of the objects (track/trackster) in the seedingCollection.
   // Element i in resultCollection is the vector of trackster
   // indices found close to the i-th object in the seedingCollection.
   // If specified, Tracksters are masked once found as close to an object.
   std::vector<int> mask(trackstersSize, 0);
   float delta2 = delta * delta;
 
   for (auto &i : seedingCollection) {
     float seed_eta = i.first.Eta();
     float seed_phi = i.first.Phi();
     unsigned seedId = i.second;
     auto sideZ = seed_eta > 0;  //forward or backward region
     const TICLLayerTile &tile = tracksterTiles[sideZ];
     float eta_min = std::max(abs(seed_eta) - delta, (float)TileConstants::minEta);
     float eta_max = std::min(abs(seed_eta) + delta, (float)TileConstants::maxEta);
 
     // get range of bins touched by delta
     std::array<int, 4> search_box = tile.searchBoxEtaPhi(eta_min, eta_max, seed_phi - delta, seed_phi + delta);
 
     std::vector<unsigned> in_delta;
     std::vector<float> distances2;
     for (int eta_i = search_box[0]; eta_i <= search_box[1]; ++eta_i) {
       for (int phi_i = search_box[2]; phi_i <= search_box[3]; ++phi_i) {
         const auto &in_tile = tile[tile.globalBin(eta_i, (phi_i % TileConstants::nPhiBins))];
         for (const unsigned &t_i : in_tile) {
           // calculate actual distances of tracksters to the seed for a more accurate cut
           auto sep2 = (tracksterPropPoints[t_i].Eta() - seed_eta) * (tracksterPropPoints[t_i].Eta() - seed_eta) +
                       (tracksterPropPoints[t_i].Phi() - seed_phi) * (tracksterPropPoints[t_i].Phi() - seed_phi);
           if (sep2 < delta2) {
             in_delta.push_back(t_i);
             distances2.push_back(sep2);
           }
         }
       }
     }
 
     // sort tracksters found in ascending order of their distances from the seed
     std::vector<unsigned> indices(in_delta.size());
     std::iota(indices.begin(), indices.end(), 0);
     std::sort(indices.begin(), indices.end(), [&](unsigned i, unsigned j) { return distances2[i] < distances2[j]; });
 
     // push back sorted tracksters in the result collection
     for (const unsigned &index : indices) {
       const auto &t_i = in_delta[index];
       if (!mask[t_i]) {
         resultCollection[seedId].push_back(t_i);
         if (useMask)
           mask[t_i] = 1;
       }
     }
 
   }  // seeding collection loop
 }

◆ initialize()

void LinkingAlgoByDirectionGeometric::initialize	(	const HGCalDDDConstants *	hgcons,
		const hgcal::RecHitTools	rhtools,
		const edm::ESHandle< MagneticField >	bfieldH,
		const edm::ESHandle< Propagator >	propH
	)

overridevirtual

Implements ticl::LinkingAlgoBase.

Definition at line 27 of file LinkingAlgoByDirectionGeometric.cc.

References bfield_, buildLayers(), hgcons_, propagator_, and rhtools_.

                                                                                       {
   hgcons_ = hgcons;
   rhtools_ = rhtools;
   buildLayers();
 
   bfield_ = bfieldH;
   propagator_ = propH;
 }

◆ linkTracksters()

void LinkingAlgoByDirectionGeometric::linkTracksters	(	const edm::Handle< std::vector< reco::Track >>	tkH,
		const edm::ValueMap< float > &	tkTime,
		const edm::ValueMap< float > &	tkTimeErr,
		const edm::ValueMap< float > &	tkTimeQual,
		const std::vector< reco::Muon > &	muons,
		const edm::Handle< std::vector< Trackster >>	tsH,
		std::vector< TICLCandidate > &	resultLinked,
		std::vector< TICLCandidate > &	chargedHadronsFromTk
	)

overridevirtual

Implements ticl::LinkingAlgoBase.

Definition at line 227 of file LinkingAlgoByDirectionGeometric.cc.

References funct::abs(), TICLCandidate::addTrackster(), ticl::Advanced, ticl::LinkingAlgoBase::algo_verbosity_, bfield_, cutTk_, del_tk_ts_int_, del_tk_ts_layer1_, del_ts_em_had_, del_ts_had_had_, dumpLinksFound(), relativeConstraints::empty, ntuplemaker::fill, findTrackstersInWindow(), firstDisk_, hgcal::RecHitTools::getPositionLayer(), hgcons_, mps_fire::i, createfilelist::int, interfaceDisk_, hgcal::RecHitTools::lastLayerEE(), LogDebug, ticl::mpion2, PFMuonAlgo::muAssocToTrack(), PDWG_BPHSkim_cff::muons, or, trajectoryStateTransform::outerFreeState(), edm::ESHandle< T >::product(), Propagator::propagate(), propagateTrackster(), recordTrackster(), rhtools_, TICLCandidate::setTrackPtr(), mathSSE::sqrt(), submitPVValidationJobs::t, timeAndEnergyCompatible(), tkEnergyCut_, tracks, TICLCandidate::tracksters(), and HGCalDDDConstants::waferZ().

                                                                                                      {
   const auto &tracks = *tkH;
   const auto &tracksters = *tsH;
 
   auto bFieldProd = bfield_.product();
   const Propagator &prop = (*propagator_);
 
   // propagated point collections
   // elements in the propagated points collecions are used
   // to look for potential linkages in the appropriate tiles
   std::vector<std::pair<Vector, unsigned>> trackPColl;     // propagated track points and index of track in collection
   std::vector<std::pair<Vector, unsigned>> tkPropIntColl;  // tracks propagated to lastLayerEE
   std::vector<std::pair<Vector, unsigned>> tsPropIntColl;  // Tracksters in CE-E, propagated to lastLayerEE
   std::vector<std::pair<Vector, unsigned>> tsHadPropIntColl;  // Tracksters in CE-H, propagated to lastLayerEE
   trackPColl.reserve(tracks.size());
   tkPropIntColl.reserve(tracks.size());
   tsPropIntColl.reserve(tracksters.size());
   tsHadPropIntColl.reserve(tracksters.size());
   // tiles, element 0 is bw, 1 is fw
   std::array<TICLLayerTile, 2> tracksterPropTiles = {};  // all Tracksters, propagated to layer 1
   std::array<TICLLayerTile, 2> tsPropIntTiles = {};      // all Tracksters, propagated to lastLayerEE
   std::array<TICLLayerTile, 2> tsHadPropIntTiles = {};   // Tracksters in CE-H, propagated to lastLayerEE
 
   // linking : trackster is hadronic if its barycenter is in CE-H
   auto isHadron = [&](const Trackster &t) -> bool {
     auto boundary_z = rhtools_.getPositionLayer(rhtools_.lastLayerEE()).z();
     return (std::abs(t.barycenter().Z()) > boundary_z);
   };
 
   if (LinkingAlgoBase::algo_verbosity_ > VerbosityLevel::Advanced)
     LogDebug("LinkingAlgoByDirectionGeometric") << "------- Geometric Linking ------- \n";
 
   // Propagate tracks
   std::vector<unsigned> candidateTrackIds;
   candidateTrackIds.reserve(tracks.size());
   for (unsigned i = 0; i < tracks.size(); ++i) {
     const auto &tk = tracks[i];
     reco::TrackRef trackref = reco::TrackRef(tkH, i);
 
     // veto tracks associated to muons
     int muId = PFMuonAlgo::muAssocToTrack(trackref, muons);
 
     if (LinkingAlgoBase::algo_verbosity_ > VerbosityLevel::Advanced)
       LogDebug("LinkingAlgoByDirectionGeometric")
           << "track " << i << " - eta " << tk.eta() << " phi " << tk.phi() << " time " << tkTime[reco::TrackRef(tkH, i)]
           << " time qual " << tkTimeQual[reco::TrackRef(tkH, i)] << "  muid " << muId << "\n";
 
     if (!cutTk_((tk)) or muId != -1)
       continue;
 
     // record tracks that can be used to make a ticlcandidate
     candidateTrackIds.push_back(i);
 
     // don't consider tracks below 2 GeV for linking
     if (std::sqrt(tk.p() * tk.p() + ticl::mpion2) < tkEnergyCut_)
       continue;
 
     int iSide = int(tk.eta() > 0);
     const auto &fts = trajectoryStateTransform::outerFreeState((tk), bFieldProd);
     // to the HGCal front
     const auto &tsos = prop.propagate(fts, firstDisk_[iSide]->surface());
     if (tsos.isValid()) {
       Vector trackP(tsos.globalPosition().x(), tsos.globalPosition().y(), tsos.globalPosition().z());
       trackPColl.emplace_back(trackP, i);
     }
     // to lastLayerEE
     const auto &tsos_int = prop.propagate(fts, interfaceDisk_[iSide]->surface());
     if (tsos_int.isValid()) {
       Vector trackP(tsos_int.globalPosition().x(), tsos_int.globalPosition().y(), tsos_int.globalPosition().z());
       tkPropIntColl.emplace_back(trackP, i);
     }
   }  // Tracks
   tkPropIntColl.shrink_to_fit();
   trackPColl.shrink_to_fit();
   candidateTrackIds.shrink_to_fit();
 
   // Propagate tracksters
 
   // Record postions of all tracksters propagated to layer 1 and lastLayerEE,
   // to be used later for distance calculation in the link finding stage
   // indexed by trackster index in event collection
   std::vector<Vector> tsAllProp;
   std::vector<Vector> tsAllPropInt;
   tsAllProp.reserve(tracksters.size());
   tsAllPropInt.reserve(tracksters.size());
 
   for (unsigned i = 0; i < tracksters.size(); ++i) {
     const auto &t = tracksters[i];
     if (LinkingAlgoBase::algo_verbosity_ > VerbosityLevel::Advanced)
       LogDebug("LinkingAlgoByDirectionGeometric")
           << "trackster " << i << " - eta " << t.barycenter().eta() << " phi " << t.barycenter().phi() << " time "
           << t.time() << " energy " << t.raw_energy() << "\n";
 
     // to HGCal front
     float zVal = hgcons_->waferZ(1, true);
     auto tsP = propagateTrackster(t, i, zVal, tracksterPropTiles);
     tsAllProp.emplace_back(tsP);
 
     // to lastLayerEE
     zVal = rhtools_.getPositionLayer(rhtools_.lastLayerEE()).z();
     tsP = propagateTrackster(t, i, zVal, tsPropIntTiles);
     tsAllPropInt.emplace_back(tsP);
 
     if (!isHadron(t))  // EM tracksters
       tsPropIntColl.emplace_back(tsP, i);
     else {  // HAD
       tsHadPropIntTiles[(t.barycenter().Z() > 0) ? 1 : 0].fill(tsP.Eta(), tsP.Phi(), i);
       tsHadPropIntColl.emplace_back(tsP, i);
     }
   }  // TS
   tsPropIntColl.shrink_to_fit();
   tsHadPropIntColl.shrink_to_fit();
 
   // Track - Trackster link finding
   // step 3: tracks -> all tracksters, at layer 1
 
   std::vector<std::vector<unsigned>> tsNearTk(tracks.size());
   findTrackstersInWindow(trackPColl, tracksterPropTiles, tsAllProp, del_tk_ts_layer1_, tracksters.size(), tsNearTk);
 
   // step 4: tracks -> all tracksters, at lastLayerEE
 
   std::vector<std::vector<unsigned>> tsNearTkAtInt(tracks.size());
   findTrackstersInWindow(tkPropIntColl, tsPropIntTiles, tsAllPropInt, del_tk_ts_int_, tracksters.size(), tsNearTkAtInt);
 
   // Trackster - Trackster link finding
   // step 2: tracksters EM -> HAD, at lastLayerEE
 
   std::vector<std::vector<unsigned>> tsNearAtInt(tracksters.size());
   findTrackstersInWindow(
       tsPropIntColl, tsHadPropIntTiles, tsAllPropInt, del_ts_em_had_, tracksters.size(), tsNearAtInt);
 
   // step 1: tracksters HAD -> HAD, at lastLayerEE
 
   std::vector<std::vector<unsigned>> tsHadNearAtInt(tracksters.size());
   findTrackstersInWindow(
       tsHadPropIntColl, tsHadPropIntTiles, tsAllPropInt, del_ts_had_had_, tracksters.size(), tsHadNearAtInt);
 
 #ifdef EDM_ML_DEBUG
   dumpLinksFound(tsNearTk, "track -> tracksters at layer 1");
   dumpLinksFound(tsNearTkAtInt, "track -> tracksters at lastLayerEE");
   dumpLinksFound(tsNearAtInt, "EM -> HAD tracksters at lastLayerEE");
   dumpLinksFound(tsHadNearAtInt, "HAD -> HAD tracksters at lastLayerEE");
 #endif  //EDM_ML_DEBUG
 
   // make final collections
 
   std::vector<TICLCandidate> chargedCandidates;
   std::vector<unsigned int> chargedMask(tracksters.size(), 0);
   for (unsigned &i : candidateTrackIds) {
     if (tsNearTk[i].empty() && tsNearTkAtInt[i].empty()) {  // nothing linked to track, make charged hadrons
       TICLCandidate chargedHad;
       chargedHad.setTrackPtr(edm::Ptr<reco::Track>(tkH, i));
       chargedHadronsFromTk.push_back(chargedHad);
       continue;
     }
 
     TICLCandidate chargedCandidate;
     float total_raw_energy = 0.;
 
     auto tkRef = reco::TrackRef(tkH, i);
     auto track_time = tkTime[tkRef];
     auto track_timeErr = tkTimeErr[tkRef];
     auto track_timeQual = tkTimeQual[tkRef];
 
     for (const unsigned ts3_idx : tsNearTk[i]) {  // tk -> ts
       if (timeAndEnergyCompatible(
               total_raw_energy, tracks[i], tracksters[ts3_idx], track_time, track_timeErr, track_timeQual)) {
         recordTrackster(ts3_idx, tracksters, tsH, chargedMask, total_raw_energy, chargedCandidate);
       }
       for (const unsigned ts2_idx : tsNearAtInt[ts3_idx]) {  // ts_EM -> ts_HAD
         if (timeAndEnergyCompatible(
                 total_raw_energy, tracks[i], tracksters[ts2_idx], track_time, track_timeErr, track_timeQual)) {
           recordTrackster(ts2_idx, tracksters, tsH, chargedMask, total_raw_energy, chargedCandidate);
         }
         for (const unsigned ts1_idx : tsHadNearAtInt[ts2_idx]) {  // ts_HAD -> ts_HAD
           if (timeAndEnergyCompatible(
                   total_raw_energy, tracks[i], tracksters[ts1_idx], track_time, track_timeErr, track_timeQual)) {
             recordTrackster(ts1_idx, tracksters, tsH, chargedMask, total_raw_energy, chargedCandidate);
           }
         }
       }
       for (const unsigned ts1_idx : tsHadNearAtInt[ts3_idx]) {  // ts_HAD -> ts_HAD
         if (timeAndEnergyCompatible(
                 total_raw_energy, tracks[i], tracksters[ts1_idx], track_time, track_timeErr, track_timeQual)) {
           recordTrackster(ts1_idx, tracksters, tsH, chargedMask, total_raw_energy, chargedCandidate);
         }
       }
     }
     for (const unsigned ts4_idx : tsNearTkAtInt[i]) {  // do the same for tk -> ts links at the interface
       if (timeAndEnergyCompatible(
               total_raw_energy, tracks[i], tracksters[ts4_idx], track_time, track_timeErr, track_timeQual)) {
         recordTrackster(ts4_idx, tracksters, tsH, chargedMask, total_raw_energy, chargedCandidate);
       }
       for (const unsigned ts2_idx : tsNearAtInt[ts4_idx]) {
         if (timeAndEnergyCompatible(
                 total_raw_energy, tracks[i], tracksters[ts2_idx], track_time, track_timeErr, track_timeQual)) {
           recordTrackster(ts2_idx, tracksters, tsH, chargedMask, total_raw_energy, chargedCandidate);
         }
         for (const unsigned ts1_idx : tsHadNearAtInt[ts2_idx]) {
           if (timeAndEnergyCompatible(
                   total_raw_energy, tracks[i], tracksters[ts1_idx], track_time, track_timeErr, track_timeQual)) {
             recordTrackster(ts1_idx, tracksters, tsH, chargedMask, total_raw_energy, chargedCandidate);
           }
         }
       }
       for (const unsigned ts1_idx : tsHadNearAtInt[ts4_idx]) {
         if (timeAndEnergyCompatible(
                 total_raw_energy, tracks[i], tracksters[ts1_idx], track_time, track_timeErr, track_timeQual)) {
           recordTrackster(ts1_idx, tracksters, tsH, chargedMask, total_raw_energy, chargedCandidate);
         }
       }
     }
 
     // do not create a candidate if no tracksters were added to candidate
     // can happen if all the tracksters linked to that track were already masked
     if (!chargedCandidate.tracksters().empty()) {
       chargedCandidate.setTrackPtr(edm::Ptr<reco::Track>(tkH, i));
       chargedCandidates.push_back(chargedCandidate);
     } else {  // create charged hadron
       TICLCandidate chargedHad;
       chargedHad.setTrackPtr(edm::Ptr<reco::Track>(tkH, i));
       chargedHadronsFromTk.push_back(chargedHad);
     }
   }
 
   std::vector<TICLCandidate> neutralCandidates;
   std::vector<int> neutralMask(tracksters.size(), 0);
   for (unsigned i = 0; i < tracksters.size(); ++i) {
     if (chargedMask[i])
       continue;
 
     TICLCandidate neutralCandidate;
     if (tsNearAtInt[i].empty() && tsHadNearAtInt[i].empty() && !neutralMask[i]) {  // nothing linked to this ts
       neutralCandidate.addTrackster(edm::Ptr<Trackster>(tsH, i));
       neutralMask[i] = 1;
       neutralCandidates.push_back(neutralCandidate);
       continue;
     }
     if (!neutralMask[i]) {
       neutralCandidate.addTrackster(edm::Ptr<Trackster>(tsH, i));
       neutralMask[i] = 1;
     }
     for (const unsigned ts2_idx : tsNearAtInt[i]) {
       if (chargedMask[ts2_idx])
         continue;
       if (!neutralMask[ts2_idx]) {
         neutralCandidate.addTrackster(edm::Ptr<Trackster>(tsH, ts2_idx));
         neutralMask[ts2_idx] = 1;
       }
       for (const unsigned ts1_idx : tsHadNearAtInt[ts2_idx]) {
         if (chargedMask[ts1_idx])
           continue;
         if (!neutralMask[ts1_idx]) {
           neutralCandidate.addTrackster(edm::Ptr<Trackster>(tsH, ts1_idx));
           neutralMask[ts1_idx] = 1;
         }
       }
     }
     for (const unsigned ts1_idx : tsHadNearAtInt[i]) {
       if (chargedMask[ts1_idx])
         continue;
       if (!neutralMask[ts1_idx]) {
         neutralCandidate.addTrackster(edm::Ptr<Trackster>(tsH, ts1_idx));
         neutralMask[ts1_idx] = 1;
       }
     }
     // filter empty candidates
     if (!neutralCandidate.tracksters().empty()) {
       neutralCandidates.push_back(neutralCandidate);
     }
   }
 
   resultLinked.insert(std::end(resultLinked), std::begin(neutralCandidates), std::end(neutralCandidates));
   resultLinked.insert(std::end(resultLinked), std::begin(chargedCandidates), std::end(chargedCandidates));
 
 }  // linkTracksters

◆ propagateTrackster()

math::XYZVector LinkingAlgoByDirectionGeometric::propagateTrackster	(	const Trackster &	t,
		const unsigned	idx,
		float	zVal,
		std::array< TICLLayerTile, 2 > &	tracksterTiles
	)

private

Definition at line 39 of file LinkingAlgoByDirectionGeometric.cc.

References ntuplemaker::fill, heavyIonCSV_trainingSettings::idx, and submitPVValidationJobs::t.

Referenced by linkTracksters().

                                                                                                                 {
   // needs only the positive Z co-ordinate of the surface to propagate to
   // the correct sign is calculated inside according to the barycenter of trackster
   Vector const &baryc = t.barycenter();
   Vector directnv = t.eigenvectors(0);
 
   // barycenter as direction for tracksters w/ poor PCA
   // propagation still done to get the cartesian coords
   // which are anyway converted to eta, phi in linking
   // -> can be simplified later
 
   //FP: disable PCA propagation for the moment and fallback to barycenter position
   // if (t.eigenvalues()[0] / t.eigenvalues()[1] < 20)
   directnv = baryc.unit();
 
   zVal *= (baryc.Z() > 0) ? 1 : -1;
 
   float par = (zVal - baryc.Z()) / directnv.Z();
   float xOnSurface = par * directnv.X() + baryc.X();
   float yOnSurface = par * directnv.Y() + baryc.Y();
   Vector tPoint(xOnSurface, yOnSurface, zVal);
   if (tPoint.Eta() > 0)
     tracksterTiles[1].fill(tPoint.Eta(), tPoint.Phi(), idx);
 
   else if (tPoint.Eta() < 0)
     tracksterTiles[0].fill(tPoint.Eta(), tPoint.Phi(), idx);
 
   return tPoint;
 }

◆ recordTrackster()

void LinkingAlgoByDirectionGeometric::recordTrackster	(	const unsigned	ts,
		const std::vector< Trackster > &	tracksters,
		const edm::Handle< std::vector< Trackster >>	tsH,
		std::vector< unsigned > &	ts_mask,
		float &	energy_in_candidate,
		TICLCandidate &	candidate
	)

private

Definition at line 169 of file LinkingAlgoByDirectionGeometric.cc.

References TICLCandidate::addTrackster().

Referenced by linkTracksters().

                                                                                 {
   if (ts_mask[ts])
     return;
   candidate.addTrackster(edm::Ptr<Trackster>(tsH, ts));
   ts_mask[ts] = 1;
   energy_in_candidate += tracksters[ts].raw_energy();
 }

◆ timeAndEnergyCompatible()

bool LinkingAlgoByDirectionGeometric::timeAndEnergyCompatible	(	float &	total_raw_energy,
		const reco::Track &	track,
		const Trackster &	trackster,
		const float &	tkTime,
		const float &	tkTimeErr,
		const float &	tkTimeQual
	)

private

Definition at line 135 of file LinkingAlgoByDirectionGeometric.cc.

References funct::abs(), ticl::Advanced, ticl::LinkingAlgoBase::algo_verbosity_, LogDebug, maxDeltaT_, SiStripPI::min, or, ticl::Trackster::raw_energy(), mathSSE::sqrt(), remoteMonitoring_LASER_era2018_cfg::threshold, ticl::Trackster::time(), ticl::Trackster::timeError(), timing_quality_threshold_, and HLT_2022v15_cff::track.

Referenced by linkTracksters().

                                                                                        {
   float threshold = std::min(0.2 * trackster.raw_energy(), 10.0);
 
   bool energyCompatible = (total_raw_energy + trackster.raw_energy() < track.p() + threshold);
   // compatible if trackster time is within 3sigma of
   // track time; compatible if either: no time assigned
   // to trackster or track time quality is below threshold
   float tsT = trackster.time();
   float tsTErr = trackster.timeError();
 
   bool timeCompatible = false;
 
   if (tsT == -99. or tkTimeQual < timing_quality_threshold_)
     timeCompatible = true;
   else {
     timeCompatible = (std::abs(tsT - tkT) < maxDeltaT_ * sqrt(tsTErr * tsTErr + tkTErr * tkTErr));
   }
 
   if (LinkingAlgoBase::algo_verbosity_ > VerbosityLevel::Advanced) {
     if (!(energyCompatible))
       LogDebug("LinkingAlgoByDirectionGeometric")
           << "energy incompatible : track p " << track.p() << " trackster energy " << trackster.raw_energy() << "\n";
     if (!(timeCompatible))
       LogDebug("LinkingAlgoByDirectionGeometric") << "time incompatible : track time " << tkT << " +/- " << tkTErr
                                                   << " trackster time " << tsT << " +/- " << tsTErr << "\n";
   }
   return energyCompatible && timeCompatible;
 }