MuonR4::SegmentFittingAlg Class Reference

The SegmentFittingAlg fits straight lines to the Mdt/Rpc/Tgc hits associated with the SegmentSeedPatterns. More...

#include <SegmentFittingAlg.h>

Inheritance diagram for MuonR4::SegmentFittingAlg:

Collaboration diagram for MuonR4::SegmentFittingAlg:

Public Member Functions
virtual	~SegmentFittingAlg ()
virtual StatusCode	initialize () override
virtual StatusCode	execute (const EventContext &ctx) const override
virtual StatusCode	sysInitialize () override
	Override sysInitialize.
virtual bool	isClonable () const override
	Specify if the algorithm is clonable.
virtual StatusCode	sysExecute (const EventContext &ctx) override
	Execute an algorithm.
virtual const DataObjIDColl &	extraOutputDeps () const override
	Return the list of extra output dependencies.
virtual bool	filterPassed (const EventContext &ctx) const
	Get filter decision:
virtual void	setFilterPassed (bool state, const EventContext &ctx) const
	Set filter decision:
ServiceHandle< StoreGateSvc > &	evtStore ()
	The standard StoreGateSvc (event store) Returns (kind of) a pointer to the StoreGateSvc.
const ServiceHandle< StoreGateSvc > &	detStore () const
	The standard StoreGateSvc/DetectorStore Returns (kind of) a pointer to the StoreGateSvc.
virtual StatusCode	sysStart () override
	Handle START transition.
virtual std::vector< Gaudi::DataHandle * >	inputHandles () const override
	Return this algorithm's input handles.
virtual std::vector< Gaudi::DataHandle * >	outputHandles () const override
	Return this algorithm's output handles.
Gaudi::Details::PropertyBase &	declareProperty (Gaudi::Property< T, V, H > &t)
void	updateVHKA (Gaudi::Details::PropertyBase &)
MsgStream &	msg () const
bool	msgLvl (const MSG::Level lvl) const

Protected Member Functions
void	renounceArray (SG::VarHandleKeyArray &handlesArray)
	remove all handles from I/O resolution
std::enable_if_t< std::is_void_v< std::result_of_t< decltype(&T::renounce)(T)> > &&!std::is_base_of_v< SG::VarHandleKeyArray, T > &&std::is_base_of_v< Gaudi::DataHandle, T >, void >	renounce (T &h)
void	extraDeps_update_handler (Gaudi::Details::PropertyBase &ExtraDeps)
	Add StoreName to extra input/output deps as needed.

Private Types
using	SegmentVec_t = std::vector<std::unique_ptr<Segment>>
using	Parameters = SegmentFit::Parameters
typedef ServiceHandle< StoreGateSvc >	StoreGateSvc_t

Private Member Functions
SegmentVec_t	fitSegmentSeed (const EventContext &ctx, const ActsTrk::GeometryContext &gctx, const SegmentSeed *seed) const
	Fit the hits from the pattern seed to segment candidates.
void	resolveAmbiguities (const ActsTrk::GeometryContext &gctx, SegmentVec_t &segmentCandidates) const
	Resolve the ambiguity amongst the segment candidates within a spectrometer sector.
std::optional< SpacePointPerLayerSplitter::HitVec >	makeBilRecoveryHits (const SegmentSeed &seed) const
	For BIL (specifically around eta3 chambers), there are cases where only a single multilayer is crossed by the muon trajectory (because of the instrumentation gap) This function returns a set of recovery hits that are only from a multilayer which is crossed by the pattern seed.
std::optional< SpacePointPerLayerSplitter::HitVec >	makeBimBirRecoveryHits (const SegmentSeed &seed) const
	BIM/BIR chambers are treated as the same sector, however, they don't overlap in many instances.
Gaudi::Details::PropertyBase &	declareGaudiProperty (Gaudi::Property< T, V, H > &hndl, const SG::VarHandleKeyType &)
	specialization for handling Gaudi::Property<SG::VarHandleKey>

Private Attributes
SG::ReadHandleKey< SegmentSeedContainer >	m_seedKey {this, "ReadKey", "MuonHoughStationSegmentSeeds"}
	ReadHandle of the seeds.
SG::WriteHandleKey< SegmentContainer >	m_outSegments {this, "OutSegmentContainer", "R4MuonSegments"}
ActsTrk::GeoContextReadKey_t	m_geoCtxKey {this, "AlignmentKey", "ActsAlignment", "cond handle key"}
ServiceHandle< Muon::IMuonIdHelperSvc >	m_idHelperSvc {this, "MuonIdHelperSvc", "Muon::MuonIdHelperSvc/MuonIdHelperSvc"}
	IdHelperSvc.
ToolHandle< ISpacePointCalibrator >	m_calibTool {this, "Calibrator", "" }
	Handle to the space point calibrator.
ToolHandle< MuonValR4::IPatternVisualizationTool >	m_visionTool {this, "VisualizationTool", ""}
	Pattern visualization tool.
Gaudi::Property< bool >	m_doT0Fit {this, "fitSegmentT0", true}
Gaudi::Property< bool >	m_recalibInFit {this, "recalibInFit" , false}
Gaudi::Property< bool >	m_tryPatternPars {this, "tryPatternPars", false}
	Try first to fit the pattern parameters. Then proceed with the straw line tangents.
Gaudi::Property< bool >	m_hessianResidual {this, "useHessianResidual", false}
	Use the expliciit Hessian in the residual calculation.
Gaudi::Property< bool >	m_doBeamspotConstraint {this, "doBeamspotConstraint", false}
	Add beamline constraint.
Gaudi::Property< double >	m_beamSpotR {this, "BeamSpotRadius", 30.* Gaudi::Units::cm}
	Radial covariance on th beam spot measurment.
Gaudi::Property< double >	m_beamSpotL {this, "BeamSpotLength", 2. * Gaudi::Units::m}
	Longitudinal covariance on the beam spo measurement.
Gaudi::Property< std::vector< double > >	m_seedMaxBsR
	Maximum allowed distance of the segment seed line to the beam spot measurement expressed in relative units of the beamspot radius.
Gaudi::Property< std::vector< double > >	m_seedMaxBsL
Gaudi::Property< double >	m_seedHitChi2 {this, "ResoSeedHitAssoc", 5. }
	Two mdt seeds are the same if their defining parameters match wihin.
Gaudi::Property< bool >	m_recalibSeed {this, "SeedRecalibrate", false}
	Toggle seed recalibration.
Gaudi::Property< double >	m_outlierRemovalCut {this, "OutlierRemoval", 5.}
	Cut on the segment chi2 / nDoF to launch the outlier removal.
Gaudi::Property< double >	m_recoveryPull {this, "RecoveryPull", 5.}
Gaudi::Property< unsigned >	m_precHitCut {this, "PrecHitCut" , 3}
	Minimum number of precision hits to accept the segment.
Gaudi::Property< bool >	m_useFastFitter {this, "useFastFitter", true}
	Use the fast Mdt fitter where possible.
Gaudi::Property< bool >	m_fastPreFitter {this, "useFastPreFitter", false}
	The fast fitter is treated as a pre fitter.
Gaudi::Property< bool >	m_ignoreFailedPreFit {this, "ignoreFailedPreFit", false}
	Switch to try the full fit when the fast pre-fitter fails.
Gaudi::Property< unsigned >	m_maxIter {this, "maxIterations", 50}
	Tune the number of iterations.
Gaudi::Property< unsigned >	m_busyLayerLimit {this, "busyLayerLimit", 4}
	Cut on the number of hits per layer to use the layer for seeding.
std::unique_ptr< SegmentFit::SegmentAmbiSolver >	m_ambiSolver {}
	Pointer to the ambiguity reosolution.
std::unique_ptr< SegmentFit::SegmentLineFitter >	m_fitter {}
	Pointer to the actual segment fitter.
std::unique_ptr< SegmentFit::MdtSegmentSeedGenerator >	m_seeder {}
	Pointer to the L-R segment seeder.
Gaudi::Property< bool >	m_allowSegmentSeedingFallback {this, "allowSegmentSeedingFallback", true}
	Allow single multilayer fallback when standard segment reconstruction fails.
Gaudi::Property< double >	m_singleMlEdgeTolerance { this, "SingleMlEdgeTolerance", 50. * Gaudi::Units::mm, "For Single-ML fallback to not trigger, the trajectory has to penetrate at least this much into the second multilayer (from either side) in local precision coordinate"}
	Tolerance for the single multilayer edge crossing test, if the trajectory only slighty nicks the second ML still consider as one ML case.
Gaudi::Property< double >	m_singleMlPhiEdgeTolerance { this, "SingleMlPhiEdgeTolerance", 0. * Gaudi::Units::mm, "For Single-ML fallback to not trigger, the trajectory has to penetrate at least this much into the second multilayer (from either side) in local phi coordinate"}
	Tolerance for the single multilayer edge crossing test in the phi projection in case the trajectory only slightly nicks one of the ML.
int	m_bilStation {-1}
	Cached BIL station index for quick access.
int	m_bimStation {-1}
	Cached BIM station index for quick access.
int	m_birStation {-1}
	Cached BIR station index for quick access.
DataObjIDColl	m_extendedExtraObjects
	Extra output dependency collection, extended by AthAlgorithmDHUpdate to add symlinks.
StoreGateSvc_t	m_evtStore
	Pointer to StoreGate (event store by default).
StoreGateSvc_t	m_detStore
	Pointer to StoreGate (detector store by default).
std::vector< SG::VarHandleKeyArray * >	m_vhka
bool	m_varHandleArraysDeclared

Static Private Attributes
static constexpr auto	s_stIdxMax = Acts::toUnderlying(Muon::MuonStationIndex::StIndex::StIndexMax)

Detailed Description

The SegmentFittingAlg fits straight lines to the Mdt/Rpc/Tgc hits associated with the SegmentSeedPatterns.

The pattern parameters in the bending direction are refined by constructing the tangent to two Mdt measurements and then by associating other measurements to the seed. If the procedure succeeds, the hits are passed through the straight line procedure. At the end of the fit, ambiguities amongst the segment candidates are removed based on the degrees of freedom and the chi2 fit quality

Definition at line 35 of file SegmentFittingAlg.h.

Member Typedef Documentation

Parameters

using MuonR4::SegmentFittingAlg::Parameters = SegmentFit::Parameters

private

Definition at line 44 of file SegmentFittingAlg.h.

SegmentVec_t

using MuonR4::SegmentFittingAlg::SegmentVec_t = std::vector<std::unique_ptr<Segment>>

private

Definition at line 42 of file SegmentFittingAlg.h.

StoreGateSvc_t

typedef ServiceHandle<StoreGateSvc> AthCommonDataStore< AthCommonMsg< Gaudi::Algorithm > >::StoreGateSvc_t

privateinherited

Definition at line 376 of file AthCommonDataStore.h.

Constructor & Destructor Documentation

~SegmentFittingAlg()

MuonR4::SegmentFittingAlg::~SegmentFittingAlg ( )

virtualdefault

Member Function Documentation

declareGaudiProperty()

Gaudi::Details::PropertyBase & AthCommonDataStore< AthCommonMsg< Gaudi::Algorithm > >::declareGaudiProperty ( Gaudi::Property< T, V, H > & hndl, const SG::VarHandleKeyType &  )

inlineprivateinherited

specialization for handling Gaudi::Property<SG::VarHandleKey>

Definition at line 156 of file AthCommonDataStore.h.

  {
    return *AthCommonDataStore<PBASE>::declareProperty(hndl.name(),
                                                       hndl.value(), 
                                                       hndl.documentation());
 
  }

declareProperty()

Gaudi::Details::PropertyBase & AthCommonDataStore< AthCommonMsg< Gaudi::Algorithm > >::declareProperty ( Gaudi::Property< T, V, H > & t )

inlineinherited

Definition at line 145 of file AthCommonDataStore.h.

                                                                     {
    typedef typename SG::HandleClassifier<T>::type htype;
    return AthCommonDataStore<PBASE>::declareGaudiProperty(t, htype());
  }

detStore()

const ServiceHandle< StoreGateSvc > & AthCommonDataStore< AthCommonMsg< Gaudi::Algorithm > >::detStore ( ) const

inlineinherited

The standard StoreGateSvc/DetectorStore Returns (kind of) a pointer to the StoreGateSvc.

Definition at line 95 of file AthCommonDataStore.h.

{ return m_detStore; }

evtStore()

ServiceHandle< StoreGateSvc > & AthCommonDataStore< AthCommonMsg< Gaudi::Algorithm > >::evtStore ( )

inlineinherited

The standard StoreGateSvc (event store) Returns (kind of) a pointer to the StoreGateSvc.

Definition at line 85 of file AthCommonDataStore.h.

{ return m_evtStore; }

execute()

StatusCode MuonR4::SegmentFittingAlg::execute ( const EventContext & ctx ) const

overridevirtual

Definition at line 129 of file SegmentFittingAlg.cxx.

                                                                       {
        const ActsTrk::GeometryContext* gctx{nullptr};
        const SegmentSeedContainer* segmentSeeds{nullptr}; 
 
        ATH_CHECK(SG::get(gctx, m_geoCtxKey, ctx));
        ATH_CHECK(SG::get(segmentSeeds, m_seedKey, ctx));
    
        SG::WriteHandle writeSegments{m_outSegments, ctx};
        ATH_CHECK(writeSegments.record(std::make_unique<SegmentContainer>()));
        SegmentVec_t allSegments{};
        ATH_MSG_VERBOSE(__func__<<"() "<<__LINE__<<" - execute() - Start processing " << segmentSeeds->size() << " pattern seeds.");
        for (const SegmentSeed* seed : *segmentSeeds) {
            SegmentVec_t segments = fitSegmentSeed(ctx, *gctx, seed);
             if (m_visionTool.isEnabled() && segments.size() > 1) {
                auto drawFinalReco = [this, &segments, &gctx, &ctx,&seed](const std::string& nameTag) {
                    PrimitiveVec segmentLines{};
                    double yLegend{0.85};
                    segmentLines.push_back(drawLabel(std::format("# segments: {:d}",  segments.size()), 0.2, yLegend, 14));
                    yLegend-=0.04;
                    for (const std::unique_ptr<Segment>& seg : segments) {
                        const Parameters pars = localSegmentPars(*gctx, *seg);
                        const auto [pos, dir] = makeLine(pars);
                        segmentLines.emplace_back(drawLine(pars, -Gaudi::Units::m, Gaudi::Units::m, kRed));
                        std::stringstream signStream{};
                        const auto& cov = seg->covariance();
                        signStream<<std::format("#chi^{{2}}/nDoF: {:.2f} ({:}), ", seg->chi2() / seg->nDoF(), seg->nDoF());
                        signStream<<std::format("y_{{0}}={:.2f}#pm{:.2f}",
                                                pars[toUnderlying(ParamDefs::y0)],
                                                Amg::error(cov, toUnderlying(ParamDefs::y0)))<<", ";
                        signStream<<std::format("#theta={:.2f}#pm{:.2f}^{{#circ}}", 
                                                pars[toUnderlying(ParamDefs::theta)]/ 1._degree,
                                                Amg::error(cov, toUnderlying(ParamDefs::theta)) / 1._degree )<<", ";
                        for (const Segment::MeasType& m : seg->measurements()) {
                            if (m->type() == xAOD::UncalibMeasType::MdtDriftCircleType && 
                                m->fitState() == CalibratedSpacePoint::State::Valid) {
                                signStream<<(SeedingAux::strawSign(pos, dir, *m) == -1 ? "L" : "R");
                            }
                        }
                        segmentLines.push_back(drawLabel(signStream.str(), 0.2, yLegend, 13));
                        yLegend-=0.03;
                    }
 
                    m_visionTool->visualizeBucket(ctx, *seed->parentBucket(), nameTag, std::move(segmentLines));
                };
                drawFinalReco("all segments");
                const unsigned int nBeforeAmbi = segments.size();
                segments = m_ambiSolver->resolveAmbiguity(*gctx, std::move(segments));
                if (nBeforeAmbi != segments.size()) {
                    drawFinalReco("post ambiguity");
                }
            } else if (m_visionTool.isEnabled() && segments.empty() &&
                      std::ranges::any_of(seed->getHitsInMax(),[this](const SpacePoint* hit){
                            return  m_visionTool->isLabeled(*hit);
                      })) {
                m_visionTool->visualizeSeed(ctx, *seed, "Failed fit");
            }
            allSegments.insert(allSegments.end(), std::make_move_iterator(segments.begin()),
                                                  std::make_move_iterator(segments.end()));
        }
        resolveAmbiguities(*gctx, allSegments);
        writeSegments->insert(writeSegments->end(),
                                  std::make_move_iterator(allSegments.begin()),
                                  std::make_move_iterator(allSegments.end()));
        ATH_MSG_VERBOSE(__func__<<"() "<<__LINE__<<" - Found in total "<<writeSegments->size()<<" segments. ");
        return StatusCode::SUCCESS; 
    }

extraDeps_update_handler()

void AthCommonDataStore< AthCommonMsg< Gaudi::Algorithm > >::extraDeps_update_handler ( Gaudi::Details::PropertyBase & ExtraDeps )

protectedinherited

Add StoreName to extra input/output deps as needed.

use the logic of the VarHandleKey to parse the DataObjID keys supplied via the ExtraInputs and ExtraOuputs Properties to add the StoreName if it's not explicitly given

extraOutputDeps()

const DataObjIDColl & AthCommonAlgorithm< Gaudi::Algorithm >::extraOutputDeps ( ) const

overridevirtualinherited

Return the list of extra output dependencies.

This list is extended to include symlinks implied by inheritance relations.

Definition at line 89 of file AthCommonAlgorithm.cxx.

{
  // If we didn't find any symlinks to add, just return the collection
  // from the base class.  Otherwise, return the extended collection.
  if (!m_extendedExtraObjects.empty()) {
    return m_extendedExtraObjects;
  }
  return BaseAlg::extraOutputDeps();
}

filterPassed()

virtual bool AthCommonAlgorithm< Gaudi::Algorithm >::filterPassed ( const EventContext & ctx ) const

inlinevirtualinherited

Get filter decision:

Definition at line 93 of file AthCommonAlgorithm.h.

                                                           {
    return execState( ctx ).filterPassed();
  }

fitSegmentSeed()

SegmentFittingAlg::SegmentVec_t MuonR4::SegmentFittingAlg::fitSegmentSeed ( const EventContext & ctx, const ActsTrk::GeometryContext & gctx, const SegmentSeed * seed ) const

private

Fit the hits from the pattern seed to segment candidates.

Tangent lines to a pair of drift circles are constructed. The remaining hits are associated based on their chi2 compability. Good seeds are then fitted to segments including an outlier rejection and hole recovery procedure

Parameters

ctx	Event context to access the conditions data needed for calibration
gctx	Geometry context to access the transforms of the particular reference surfaces.
seed	The segment seed from which the parameters in non-bending direction & the associated hits are taken

This patch restores the efficiency for muons with pT< 10 GeV in the middle and outer endcap stations, for more details on the derivation of the exact window cuts see MR !91056

MDT-multilayer fallback. Only try this when standard segment reconstruction failed.

Definition at line 197 of file SegmentFittingAlg.cxx.

                                                                                 {
 
        const Acts::Transform3& locToGlob{patternSeed->msSector()->localToGlobalTransform(gctx)};
        std::vector<std::unique_ptr<Segment>> segments{};
 
        const Acts::CalibrationContext cctx = ActsTrk::getCalibrationContext(ctx);
 
        using namespace Muon::MuonStationIndex;
        using State_t = MdtSegmentSeedGenerator::State_t;
 
 
        auto seedSelector = [&](const Amg::Vector3D& tangentSeedPos,
                                const Amg::Vector3D& tangentSeedDir) {
                                if (!m_doBeamspotConstraint) {
                                    return true;
                                }
                                const Amg::Vector3D globPos{locToGlob*tangentSeedPos};
                                const Amg::Vector3D globDir{locToGlob.linear()*tangentSeedDir};

                                const StIndex stIdx = toStationIndex(patternSeed->msSector()->chamberIndex());
                                switch (stIdx) {
                                    using enum StIndex;
                                    case EM: {
                                        if (std::abs(globPos.eta()) > 2.35 && 
                                            std::abs(globPos.theta() - globDir.theta()) < 5.8_degree) {
                                            return true;
                                        }
                                        break;
                                    }
                                    case EO: {
                                         if (std::abs(globPos.eta()) > 2.35 && 
                                            std::abs(globPos.theta() - globDir.theta()) < 3._degree) {
                                            return true;
                                        }
                                        break;
                                    }
                                    default:
                                        break;
                                }
                                using namespace Acts::detail::LineHelper;
                                const Acts::Intersection3D bsExtp = lineIntersect<3>(Amg::Vector3D::Zero(),
                                                                                     Amg::Vector3D::UnitZ(),
                                                                                     globPos, globDir);
                                const Amg::Vector3D closePoint = bsExtp.position();
                                const auto rawStIdx = Acts::toUnderlying(stIdx);
                                //coverity[NEGATIVE_RETURNS]
                                if (closePoint.perp() > m_seedMaxBsR.value().at(rawStIdx) * m_beamSpotR ||
                                    std::abs(closePoint.z()) >  m_seedMaxBsL.value().at(rawStIdx) * m_beamSpotL){
                                    ATH_MSG_DEBUG("fitSegmentSeed() - Reject parameters "<<Amg::toString(tangentSeedPos)
                                                  <<" + "<<Amg::toString(tangentSeedDir)
                                                  <<" as extrapolation to beamspot is too far "<<Amg::toString(closePoint)
                                                  <<", r: "<<closePoint.perp());
                                    return false;
                                }
                                return true;
        }; 
 
        // Make sure patternSeed->parameters() are in ACTS units!
        State_t seedState{patternSeed->parameters(), patternSeed, m_calibTool.get(), m_recalibSeed, seedSelector};
 
        auto visualizeSegmentSeeds = [&](State_t& state, const std::string_view label) {
            if (m_visionTool.isEnabled()) { 
                PrimitiveVec seedLines{};
                State_t drawMe{state};
                while(auto s = m_seeder->nextSeed(cctx, drawMe)) {
                    seedLines.push_back(drawLine(s->parameters, -Gaudi::Units::m, Gaudi::Units::m, kViolet));
                }
                seedLines.push_back(drawLabel(std::format("{} possible seeds: {:d}", label, drawMe.nGenSeeds()), 0.2, 0.85, 14));
                m_visionTool->visualizeSeed(ctx, *patternSeed, std::format("pattern_{:}{:}{:}",
                    patternSeed->msSector()->chamberIndex(),
                    patternSeed->msSector()->side() ? 'A' : 'C' ,
                    patternSeed->msSector()->sector()), std::move(seedLines));
            }
        };
 
        auto runSeeder = [&](State_t&& state) {
            while (auto seed = m_seeder->nextSeed(cctx, state)) {
                seed->parameters[toUnderlying(ParamDefs::t0)] = ActsTrk::timeToAthena( seed->parameters[toUnderlying(ParamDefs::t0)]);
                auto segment = m_fitter->fitSegment(ctx, patternSeed, seed->parameters, locToGlob, std::move(seed->hits));
                if (segment) {
                    segments.push_back(std::move(segment));
                }
            }
        };
 
        visualizeSegmentSeeds(seedState, "Nominal Seeds");
        ATH_MSG_VERBOSE(__func__<<"() "<<__LINE__<<" - fitSegmentHits() - Start segment seed search");
        runSeeder(std::move(seedState));
 
        //----------------------------------------------------------------------------------------
        /* Trying to recover certain cases where we either have only one multilayer or where the chambers are not overlapping and there are no hits in the other (e.g. BIM & BIR)*/
        //----------------------------------------------------------------------------------------
        if( m_allowSegmentSeedingFallback && 
            segments.empty() && (patternSeed->msSector()->chamberIndex() == ChIndex::BIL) ) {
            // Implement fallback logic here
            ATH_MSG_VERBOSE(__func__<<"() "<<__LINE__<<" - fitSegmentSeed() - Standard MDT seeding failed. " "Trying ML fallback.");
 
            //For recovery seeding we will have smaller hit collection
            std::optional<SpacePointPerLayerSplitter::HitVec> recoveryHits{};
 
            // First try the very restrictive BIL single-ML recovery.
            recoveryHits = makeBilRecoveryHits(*patternSeed);
 
            if (!recoveryHits) {
                ATH_MSG_VERBOSE(__func__<< ":" <<__LINE__<< "- BIL recovery did not succeed. Try BIM/BIR.");
                recoveryHits = makeBimBirRecoveryHits(*patternSeed);
            }
 
             // Both recovery modes ultimately use exactly the same nominal MDT seeder. Only their input hits differ.
            if (recoveryHits) {
                ATH_MSG_VERBOSE(__func__<<"() "<<__LINE__<<" - fitSegmentSeed() - ML seeding fallback has " << recoveryHits->size() << " hits.");
                State_t fallbackState{patternSeed->parameters(), patternSeed, m_calibTool.get(), m_recalibSeed, *recoveryHits, seedSelector};
                visualizeSegmentSeeds(fallbackState , "Fallback Seeds");
                runSeeder(std::move(fallbackState));
            }
        }
        ATH_MSG_VERBOSE(__func__<<"() "<<__LINE__<<" - fitSegmentHits() - In total "<<segments.size()<<" segment were constructed ");
        return segments;
 
    }

initialize()

StatusCode MuonR4::SegmentFittingAlg::initialize ( )

overridevirtual

Definition at line 66 of file SegmentFittingAlg.cxx.

                                             {
        ATH_CHECK(m_geoCtxKey.initialize());
        ATH_CHECK(m_seedKey.initialize());
        ATH_CHECK(m_outSegments.initialize());  
        ATH_CHECK(m_calibTool.retrieve());
        ATH_CHECK(m_idHelperSvc.retrieve());
        ATH_CHECK(m_visionTool.retrieve(EnableTool{!m_visionTool.empty()}));
        SegmentAmbiSolver::Config cfg{};
        m_ambiSolver = std::make_unique<SegmentAmbiSolver>(name(), std::move(cfg));
 
        SegmentLineFitter::Config fitCfg{};
        fitCfg.calibrator = m_calibTool.get();
        fitCfg.visionTool = m_visionTool.get();
        fitCfg.idHelperSvc = m_idHelperSvc.get();
        fitCfg.fitT0 = m_doT0Fit;
        fitCfg.recalibrate = m_recalibInFit;
        fitCfg.useFastFitter = m_useFastFitter;
        fitCfg.fastPreFitter = m_fastPreFitter;
        fitCfg.ignoreFailedPreFit = m_ignoreFailedPreFit;
        fitCfg.useHessian = m_hessianResidual;
 
        fitCfg.doBeamSpot = m_doBeamspotConstraint;
        fitCfg.beamSpotRadius = m_beamSpotR;
        fitCfg.beamSpotLength = m_beamSpotL;
 
        if (m_doBeamspotConstraint) {
            for (const auto* prop :{&m_seedMaxBsR, &m_seedMaxBsL}) {
                if (prop->value().size() != s_stIdxMax || 
                    std::ranges::min(prop->value()) < 0.) {
                    ATH_MSG_ERROR("Invalid configuratnon of "<<(prop));
                    return StatusCode::FAILURE;
                }
                ATH_MSG_DEBUG("Configured "<<(*prop));
            }
        }
        fitCfg.outlierRemovalCut = m_outlierRemovalCut;
        fitCfg.recoveryPull = m_recoveryPull;
        fitCfg.nPrecHitCut = m_precHitCut;
        fitCfg.maxIter = m_maxIter;
        ATH_MSG_DEBUG("Fitter configuration: \n -- "<<m_doT0Fit<<"\n -- "<<m_recalibInFit<<"\n -- "<<m_useFastFitter
                <<"\n -- "<<m_fastPreFitter<<"\n -- "<<m_ignoreFailedPreFit<<"\n -- "<<m_hessianResidual
                <<"\n -- "<<m_doBeamspotConstraint<<"\n -- "<<m_beamSpotR<<"\n -- "<<m_beamSpotL<<"\n -- "<<m_outlierRemovalCut
                <<"\n -- "<<m_recoveryPull<<"\n -- "<<m_precHitCut<<"\n -- "<<m_maxIter);
 
        m_fitter = std::make_unique<SegmentFit::SegmentLineFitter>(name(), std::move(fitCfg));
 
        MdtSegmentSeedGenerator::Config genCfg{};
        genCfg.hitPullCut = m_seedHitChi2;
        genCfg.busyLayerLimit = m_busyLayerLimit;
        genCfg.startWithPattern = m_tryPatternPars;
        ATH_MSG_DEBUG("Seeder configuration: \n - "<<m_tryPatternPars
                    <<"\n - "<<m_seedHitChi2
                    <<"\n - "<<m_busyLayerLimit);  
        m_seeder = std::make_unique<SegmentFit::MdtSegmentSeedGenerator>(genCfg, makeActsAthenaLogger(this, name()));
 
        //Cache station indices for quick access
        const auto& mdtHelper = m_idHelperSvc->mdtIdHelper();
        m_bilStation = mdtHelper.stationNameIndex("BIL");
        m_bimStation = mdtHelper.stationNameIndex("BIM");
        m_birStation = mdtHelper.stationNameIndex("BIR");
     
        return StatusCode::SUCCESS;
    }

inputHandles()

virtual std::vector< Gaudi::DataHandle * > AthCommonDataStore< AthCommonMsg< Gaudi::Algorithm > >::inputHandles ( ) const

overridevirtualinherited

Return this algorithm's input handles.

We override this to include handle instances from key arrays if they have not yet been declared. See comments on updateVHKA.

isClonable()

virtual bool AthCommonAlgorithm< Gaudi::Algorithm >::isClonable ( ) const

inlineoverridevirtualinherited

Specify if the algorithm is clonable.

Only relevant for non-reentrant algorithms. Actual number of clones needs to be set via the "Cardinality" property.

Reimplemented in AFP_DigiTop, AlgB, AlgT, BCM_Digitization, CscDigitBuilder, CscDigitToCscRDO, G4AtlasAlg, G4RunAlg, HGTD_Digitization, HiveAlgBase, InDet::GNNSeedingTrackMaker, InDet::SCT_Clusterization, InDet::SiSPGNNTrackMaker, InDet::SiSPSeededTrackFinder, InDet::SiTrackerSpacePointFinder, ISF::SimKernelMT, ITk::StripDigitization, ITkPixelCablingAlg, ITkStripCablingAlg, LArHitEMapMaker, LArTTL1Maker, LUCID_DigiTop, LVL1::L1TopoSimulation, MergeCalibHits, MergeGenericMuonSimHitColl, MergeHijingPars, MergeMcEventCollection, MergeTrackRecordCollection, MergeTruthJets, MergeTruthParticles, MuonDigitizer, PileUpMTAlg, PixelDigitization, RoIBResultToxAOD, SCT_ByteStreamErrorsTestAlg, SCT_CablingCondAlgFromCoraCool, SCT_CablingCondAlgFromText, SCT_ConditionsParameterTestAlg, SCT_ConditionsSummaryTestAlg, SCT_ConfigurationConditionsTestAlg, SCT_Digitization, SCT_FlaggedConditionTestAlg, SCT_LinkMaskingTestAlg, SCT_MajorityConditionsTestAlg, SCT_ModuleVetoTestAlg, SCT_MonitorConditionsTestAlg, SCT_PrepDataToxAOD, SCT_RawDataToxAOD, SCT_ReadCalibChipDataTestAlg, SCT_ReadCalibDataTestAlg, SCT_RODVetoTestAlg, SCT_SensorsTestAlg, SCT_SiliconConditionsTestAlg, SCT_StripVetoTestAlg, SCT_TdaqEnabledTestAlg, SCT_TestCablingAlg, SCTEventFlagWriter, SCTRawDataProvider, SCTSiLorentzAngleTestAlg, SCTSiPropertiesTestAlg, SGInputLoader, Simulation::BeamEffectsAlg, TileHitVecToCnt, TileMuonFitter, TilePulseForTileMuonReceiver, TileRawChannelMaker, TRTDigitization, and ZDC_DigiTop.

Definition at line 68 of file AthCommonAlgorithm.h.

                                           {
    return true;
  }

makeBilRecoveryHits()

std::optional< SpacePointPerLayerSplitter::HitVec > MuonR4::SegmentFittingAlg::makeBilRecoveryHits ( const SegmentSeed & seed ) const

private

For BIL (specifically around eta3 chambers), there are cases where only a single multilayer is crossed by the muon trajectory (because of the instrumentation gap) This function returns a set of recovery hits that are only from a multilayer which is crossed by the pattern seed.

Definition at line 352 of file SegmentFittingAlg.cxx.

                                                                        {
 
    const auto& mdtHelper = m_idHelperSvc->mdtIdHelper();
 
    const MuonGMR4::MuonReadoutElement* crossedRE{nullptr};
 
    // Find BIL readout elements crossed by the Hough trajectory.
    for (const auto& chamber : seed.parentBucket()->chamberLocations()) {
 
        const auto* readoutEle = chamber.readoutEle();
        if (readoutEle->detectorType() != ActsTrk::DetectorType::Mdt) {
            continue;
        }
        const Identifier id = readoutEle->identify();
        //For now do this only for BIL stations (technically could be even more specific, BIL eta 3 or 4), choose int comparison instead?
        if (mdtHelper.stationName(id) != m_bilStation) {
            continue;
        }
 
        if (!trajectoryPassesThroughChamber(chamber, seed, m_singleMlEdgeTolerance, m_singleMlPhiEdgeTolerance)) {
            continue;
        }
 
        crossedRE = readoutEle;
 
        ATH_MSG_VERBOSE(__func__<<"() "<<__LINE__<<" - BIL recovery: Hough trajectory crosses " 
                        << m_idHelperSvc->toStringDetEl(id));
    }
 
    // BIL recovery is strictly a single crossed-ML recovery.
    if (!crossedRE) {
        ATH_MSG_VERBOSE(__func__<<"() "<<__LINE__<<" - BIL recovery rejected: trajectory crosses no BIL readout elements.");
        return std::nullopt;
    }
 
    SpacePointPerLayerSplitter::HitVec recoveryHits{};
    recoveryHits.reserve(seed.getHitsInMax().size());
 
    std::size_t nMdtHits{0};
 
    for (const SpacePoint* hit : seed.getHitsInMax()) {
 
        // Preserve non-MDT hits.
        if (hit->type() != xAOD::UncalibMeasType::MdtDriftCircleType) {
            recoveryHits.push_back(hit);
            continue;
        }
        // Only MDT hits from the single geometrically crossed BIL RE.
        if (hit->primaryMeasurement()->readoutElement() != crossedRE) {
            continue;
        }
        recoveryHits.push_back(hit);
        ++nMdtHits;
    }
 
    ATH_MSG_VERBOSE(__func__<<"() "<<__LINE__<<" - BIL recovery: keeping " << nMdtHits << " MDT hits from " << m_idHelperSvc->toStringDetEl( crossedRE->identify()));
    return recoveryHits;
}

makeBimBirRecoveryHits()

std::optional< SpacePointPerLayerSplitter::HitVec > MuonR4::SegmentFittingAlg::makeBimBirRecoveryHits ( const SegmentSeed & seed ) const

private

BIM/BIR chambers are treated as the same sector, however, they don't overlap in many instances.

Therefore, Mdt segment seeding might fail in these cases. This function returns a set of recovery hits that are only either from BIM or BIR multilayers (and the neighbouring ones) compatible with the pattern seed.

Definition at line 412 of file SegmentFittingAlg.cxx.

                                                                                                                      {
 
    // For BIM/BIR we rely on the phi extension to distinguish
    // readout elements which overlap in the eta projection.
    if (!seed.hasPhiExtension()) {
        ATH_MSG_VERBOSE("BIM/BIR recovery rejected: seed has no phi extension.");
        return std::nullopt;
    }
 
    const auto& mdtHelper = m_idHelperSvc->mdtIdHelper();
    /*
     * Use the geometrical crossing only to identify the recovery
     * station family (BIM/BIR) and stationPhi.
     *
     * Do NOT use the crossed REs themselves for hit filtering:
     * the Hough trajectory can be biased in eta by high occupancy.
     */
    std::optional<int> recoveryStation{};
 
    for (const auto& chamber : seed.parentBucket()->chamberLocations()) {
 
        const auto* readoutEle = chamber.readoutEle();
        if (readoutEle->detectorType() != ActsTrk::DetectorType::Mdt) {
            continue;
        }
 
        const Identifier id = readoutEle->identify();
        const int station = mdtHelper.stationName(id);
 
        //Don't care about other stations for now
        if (station != m_bimStation && station != m_birStation) {
            continue;
        }
        //Don't need any tolerance here
        if (!trajectoryPassesThroughChamber(chamber, seed, 0., 0.)) {
            continue;
        }
 
        ATH_MSG_VERBOSE(__func__<<"() "<<__LINE__<<" - BIM/BIR recovery: Hough trajectory crosses " << m_idHelperSvc->toStringDetEl(id));
 
        // First crossed BIM/BIR RE defines the recovery region.
        if (!recoveryStation) {
            recoveryStation = station;
            continue;
        }
 
        /*
         * All geometrically crossed BIM/BIR REs must be compatible
         * with the same station family
         * Different eta and multilayer are explicitly allowed.
         */
        if (*recoveryStation != station){ 
            ATH_MSG_VERBOSE(__func__<<"() "<<__LINE__<<" - BIM/BIR recovery rejected: crossed readout " "elements belong to different station/phi regions.");
            return std::nullopt;
        }
    }
    // No geometrically compatible BIM/BIR region.
    if (!recoveryStation) {
        return std::nullopt;
    }
 
    /*
     * Now construct the recovery collection.
     * Selection:
     *   - same BIM/BIR station family
     *   - ANY stationEta
     *   - ANY multilayer
     * Only hits already belonging to this Hough seed are considered.
     */
    SpacePointPerLayerSplitter::HitVec recoveryHits{};
    recoveryHits.reserve(seed.getHitsInMax().size());
 
    std::size_t nMdtHits{0};
    for (const SpacePoint* hit : seed.getHitsInMax()) {
        //Preserve the non-MDT content of the original seed.
        if (hit->type() != xAOD::UncalibMeasType::MdtDriftCircleType) {
            recoveryHits.push_back(hit);
            continue;
        }
 
        const Identifier hitId = hit->identify();
        if (mdtHelper.stationName(hitId) != *recoveryStation) {
            continue;
        }
        recoveryHits.push_back(hit);
        ++nMdtHits;
 
        ATH_MSG_VERBOSE(__func__<<"() "<<__LINE__<<" - BIM/BIR recovery keeps MDT hit " << m_idHelperSvc->toString(hitId));
    }
 
    ATH_MSG_VERBOSE(__func__<<"() "<<__LINE__<<" - BIM/BIR recovery selected " << nMdtHits << " MDT hits from station " << mdtHelper.stationNameString(*recoveryStation));
 
    if (nMdtHits == 0) {
        return std::nullopt;
    }
 
    return recoveryHits;
}

msg()

MsgStream & AthCommonMsg< Gaudi::Algorithm >::msg ( ) const

inlineinherited

Definition at line 24 of file AthCommonMsg.h.

                                {
    return this->msgStream();
  }

msgLvl()

bool AthCommonMsg< Gaudi::Algorithm >::msgLvl ( const MSG::Level lvl ) const

inlineinherited

Definition at line 30 of file AthCommonMsg.h.

                                               {
    return this->msgLevel(lvl);
  }

outputHandles()

virtual std::vector< Gaudi::DataHandle * > AthCommonDataStore< AthCommonMsg< Gaudi::Algorithm > >::outputHandles ( ) const

overridevirtualinherited

Return this algorithm's output handles.

We override this to include handle instances from key arrays if they have not yet been declared. See comments on updateVHKA.

renounce()

std::enable_if_t< std::is_void_v< std::result_of_t< decltype(&T::renounce)(T)> > &&!std::is_base_of_v< SG::VarHandleKeyArray, T > &&std::is_base_of_v< Gaudi::DataHandle, T >, void > AthCommonDataStore< AthCommonMsg< Gaudi::Algorithm > >::renounce ( T & h )

inlineprotectedinherited

Definition at line 368 of file AthCommonDataStore.h.

  {
    h.renounce();
    PBASE::renounce (h);
  }

renounceArray()

void AthCommonDataStore< AthCommonMsg< Gaudi::Algorithm > >::renounceArray ( SG::VarHandleKeyArray & handlesArray )

inlineprotectedinherited

remove all handles from I/O resolution

Definition at line 352 of file AthCommonDataStore.h.

                                                          {
    handlesArray.renounce();
  }

resolveAmbiguities()

void MuonR4::SegmentFittingAlg::resolveAmbiguities ( const ActsTrk::GeometryContext & gctx, SegmentVec_t & segmentCandidates ) const

private

Resolve the ambiguity amongst the segment candidates within a spectrometer sector.

Segments are rejected if they share hits with other segments and if they have poorer quality.

Parameters

gctx	GeometryContext to compare the local parameters
segmentCandidates	The list of segments to be resolved

Definition at line 323 of file SegmentFittingAlg.cxx.

                                                                                      {
        if (segmentCandidates.empty()) {
            return;
        }
        ATH_MSG_VERBOSE(__func__<<"() "<<__LINE__<<" - resolveAmbiguities() - Resolve ambiguities amongst "
                        <<segmentCandidates.size()<<" segment candidates.");
        std::map<const MuonGMR4::SpectrometerSector*, SegmentVec_t,
                 MuonGMR4::MuonDetectorManager::MSEnvelopeSorter> candidatesPerChamber{};
        
        for (std::unique_ptr<Segment>& sortMe : segmentCandidates) {
            const MuonGMR4::SpectrometerSector* chamb = sortMe->msSector();
            candidatesPerChamber[chamb].push_back(std::move(sortMe));
        }
        segmentCandidates.clear();
        for (auto& [chamber, resolveMe] : candidatesPerChamber) {
            const std::size_t nBefore = resolveMe.size();
            SegmentVec_t resolvedSegments = m_ambiSolver->resolveAmbiguity(gctx, std::move(resolveMe));
            ATH_MSG_DEBUG("resolveAmbiguities()  - "<<resolvedSegments.size()<<"/"<<nBefore
                <<" segments survived ambiguity solving in "<<chamber->identString()<<".");
            segmentCandidates.insert(segmentCandidates.end(), 
                                     std::make_move_iterator(resolvedSegments.begin()),
                                     std::make_move_iterator(resolvedSegments.end()));
        }
        ATH_MSG_VERBOSE(__func__<<"() "<<__LINE__<<" - Ambiguity solving done "<<segmentCandidates.size()<<" survived.");
    }

setFilterPassed()

virtual void AthCommonAlgorithm< Gaudi::Algorithm >::setFilterPassed ( bool state, const EventContext & ctx ) const

inlinevirtualinherited

Set filter decision:

Definition at line 99 of file AthCommonAlgorithm.h.

                                                                            {
    execState( ctx ).setFilterPassed( state );
  }

sysExecute()

StatusCode AthCommonAlgorithm< Gaudi::Algorithm >::sysExecute ( const EventContext & ctx )

overridevirtualinherited

Execute an algorithm.

We override this in order to work around an issue with the Algorithm base class storing the event context in a member variable that can cause crashes in MT jobs.

Reimplemented in AthAnalysisAlgorithm.

Definition at line 80 of file AthCommonAlgorithm.cxx.

{
  return BaseAlg::sysExecute (ctx);
}

sysInitialize()

StatusCode AthCommonAlgorithm< Gaudi::Algorithm >::sysInitialize ( )

overridevirtualinherited

Override sysInitialize.

Override sysInitialize from the base class.

Loop through all output handles, and if they're WriteCondHandles, automatically register them and this Algorithm with the CondSvc

Scan through all outputHandles, and if they're WriteCondHandles, register them with the CondSvc

Reimplemented from AthCommonDataStore< AthCommonMsg< Gaudi::Algorithm > >.

Reimplemented in AthAnalysisAlgorithm, AthHistogramAlgorithm, HypoBase, InputMakerBase, and PyAthena::Alg.

Definition at line 60 of file AthCommonAlgorithm.cxx.

                                                      {
  StatusCode sc=AthCommonDataStore<AthCommonMsg<BaseAlg>>::sysInitialize();
 
  if (sc.isFailure()) {
    return sc;
  }
  
  ServiceHandle<ICondSvc> cs("CondSvc",name());
  for (auto h : outputHandles()) {
    if (h->isCondition() && h->mode() == Gaudi::DataHandle::Writer) {
      // do this inside the loop so we don't create the CondSvc until needed
      if ( cs.retrieve().isFailure() ) {
        ATH_MSG_WARNING("no CondSvc found: won't autoreg WriteCondHandles");
        return StatusCode::SUCCESS;
      }      
      if (cs->regHandle(this,*h).isFailure()) {
        sc = StatusCode::FAILURE;
        ATH_MSG_ERROR("unable to register WriteCondHandle " << h->fullKey()
                      << " with CondSvc");
      }
    }
  }
  return sc;  
}

sysStart()

virtual StatusCode AthCommonDataStore< AthCommonMsg< Gaudi::Algorithm > >::sysStart ( )

overridevirtualinherited

Handle START transition.

We override this in order to make sure that conditions handle keys can cache a pointer to the conditions container.

updateVHKA()

void AthCommonDataStore< AthCommonMsg< Gaudi::Algorithm > >::updateVHKA ( Gaudi::Details::PropertyBase & )

inlineinherited

Definition at line 298 of file AthCommonDataStore.h.

                                               {
    for (auto &a : m_vhka) {
      std::vector<SG::VarHandleKey*> keys = a->keys();
      for (auto k : keys) {
        k->setOwner(this);
      }
    }
  }

Member Data Documentation

m_allowSegmentSeedingFallback

Gaudi::Property<bool> MuonR4::SegmentFittingAlg::m_allowSegmentSeedingFallback {this, "allowSegmentSeedingFallback", true}

private

Allow single multilayer fallback when standard segment reconstruction fails.

Definition at line 135 of file SegmentFittingAlg.h.

{this, "allowSegmentSeedingFallback", true};

m_ambiSolver

std::unique_ptr<SegmentFit::SegmentAmbiSolver> MuonR4::SegmentFittingAlg::m_ambiSolver {}

private

Pointer to the ambiguity reosolution.

Definition at line 128 of file SegmentFittingAlg.h.

{};

m_beamSpotL

Gaudi::Property<double> MuonR4::SegmentFittingAlg::m_beamSpotL {this, "BeamSpotLength", 2. * Gaudi::Units::m}

private

Longitudinal covariance on the beam spo measurement.

Definition at line 97 of file SegmentFittingAlg.h.

{this, "BeamSpotLength", 2. * Gaudi::Units::m};

m_beamSpotR

Gaudi::Property<double> MuonR4::SegmentFittingAlg::m_beamSpotR {this, "BeamSpotRadius", 30.* Gaudi::Units::cm}

private

Radial covariance on th beam spot measurment.

Definition at line 95 of file SegmentFittingAlg.h.

{this, "BeamSpotRadius", 30.* Gaudi::Units::cm};

m_bilStation

int MuonR4::SegmentFittingAlg::m_bilStation {-1}

private

Cached BIL station index for quick access.

Definition at line 144 of file SegmentFittingAlg.h.

{-1};

m_bimStation

int MuonR4::SegmentFittingAlg::m_bimStation {-1}

private

Cached BIM station index for quick access.

Definition at line 146 of file SegmentFittingAlg.h.

{-1};

m_birStation

int MuonR4::SegmentFittingAlg::m_birStation {-1}

private

Cached BIR station index for quick access.

Definition at line 148 of file SegmentFittingAlg.h.

{-1};

m_busyLayerLimit

Gaudi::Property<unsigned> MuonR4::SegmentFittingAlg::m_busyLayerLimit {this, "busyLayerLimit", 4}

private

Cut on the number of hits per layer to use the layer for seeding.

Definition at line 126 of file SegmentFittingAlg.h.

{this, "busyLayerLimit",  4};

m_calibTool

ToolHandle<ISpacePointCalibrator> MuonR4::SegmentFittingAlg::m_calibTool {this, "Calibrator", "" }

private

Handle to the space point calibrator.

Definition at line 82 of file SegmentFittingAlg.h.

{this, "Calibrator", "" };

m_detStore

StoreGateSvc_t AthCommonDataStore< AthCommonMsg< Gaudi::Algorithm > >::m_detStore

privateinherited

Pointer to StoreGate (detector store by default).

Definition at line 381 of file AthCommonDataStore.h.

m_doBeamspotConstraint

Gaudi::Property<bool> MuonR4::SegmentFittingAlg::m_doBeamspotConstraint {this, "doBeamspotConstraint", false}

private

Add beamline constraint.

Definition at line 93 of file SegmentFittingAlg.h.

{this, "doBeamspotConstraint", false};

m_doT0Fit

Gaudi::Property<bool> MuonR4::SegmentFittingAlg::m_doT0Fit {this, "fitSegmentT0", true}

private

Definition at line 86 of file SegmentFittingAlg.h.

{this, "fitSegmentT0", true};

m_evtStore

StoreGateSvc_t AthCommonDataStore< AthCommonMsg< Gaudi::Algorithm > >::m_evtStore

privateinherited

Pointer to StoreGate (event store by default).

Definition at line 378 of file AthCommonDataStore.h.

m_extendedExtraObjects

DataObjIDColl AthCommonAlgorithm< Gaudi::Algorithm >::m_extendedExtraObjects

privateinherited

Extra output dependency collection, extended by AthAlgorithmDHUpdate to add symlinks.

Empty if no symlinks were found.

Definition at line 108 of file AthCommonAlgorithm.h.

m_fastPreFitter

Gaudi::Property<bool> MuonR4::SegmentFittingAlg::m_fastPreFitter {this, "useFastPreFitter", false}

private

The fast fitter is treated as a pre fitter.

Definition at line 120 of file SegmentFittingAlg.h.

{this, "useFastPreFitter", false};

m_fitter

std::unique_ptr<SegmentFit::SegmentLineFitter> MuonR4::SegmentFittingAlg::m_fitter {}

private

Pointer to the actual segment fitter.

Definition at line 130 of file SegmentFittingAlg.h.

{};

m_geoCtxKey

ActsTrk::GeoContextReadKey_t MuonR4::SegmentFittingAlg::m_geoCtxKey {this, "AlignmentKey", "ActsAlignment", "cond handle key"}

private

Definition at line 78 of file SegmentFittingAlg.h.

{this, "AlignmentKey", "ActsAlignment", "cond handle key"};

m_hessianResidual

Gaudi::Property<bool> MuonR4::SegmentFittingAlg::m_hessianResidual {this, "useHessianResidual", false}

private

Use the expliciit Hessian in the residual calculation.

Definition at line 91 of file SegmentFittingAlg.h.

{this, "useHessianResidual", false};

m_idHelperSvc

ServiceHandle<Muon::IMuonIdHelperSvc> MuonR4::SegmentFittingAlg::m_idHelperSvc {this, "MuonIdHelperSvc", "Muon::MuonIdHelperSvc/MuonIdHelperSvc"}

private

IdHelperSvc.

Definition at line 80 of file SegmentFittingAlg.h.

{this, "MuonIdHelperSvc", "Muon::MuonIdHelperSvc/MuonIdHelperSvc"};

m_ignoreFailedPreFit

Gaudi::Property<bool> MuonR4::SegmentFittingAlg::m_ignoreFailedPreFit {this, "ignoreFailedPreFit", false}

private

Switch to try the full fit when the fast pre-fitter fails.

Definition at line 122 of file SegmentFittingAlg.h.

{this, "ignoreFailedPreFit", false};

m_maxIter

Gaudi::Property<unsigned> MuonR4::SegmentFittingAlg::m_maxIter {this, "maxIterations", 50}

private

Tune the number of iterations.

Definition at line 124 of file SegmentFittingAlg.h.

{this, "maxIterations", 50};

m_outlierRemovalCut

Gaudi::Property<double> MuonR4::SegmentFittingAlg::m_outlierRemovalCut {this, "OutlierRemoval", 5.}

private

Cut on the segment chi2 / nDoF to launch the outlier removal.

Definition at line 113 of file SegmentFittingAlg.h.

{this, "OutlierRemoval", 5.};

m_outSegments

SG::WriteHandleKey<SegmentContainer> MuonR4::SegmentFittingAlg::m_outSegments {this, "OutSegmentContainer", "R4MuonSegments"}

private

Definition at line 76 of file SegmentFittingAlg.h.

{this, "OutSegmentContainer", "R4MuonSegments"};

m_precHitCut

Gaudi::Property<unsigned> MuonR4::SegmentFittingAlg::m_precHitCut {this, "PrecHitCut" , 3}

private

Minimum number of precision hits to accept the segment.

Definition at line 116 of file SegmentFittingAlg.h.

{this, "PrecHitCut" , 3};

m_recalibInFit

Gaudi::Property<bool> MuonR4::SegmentFittingAlg::m_recalibInFit {this, "recalibInFit" , false}

private

Definition at line 87 of file SegmentFittingAlg.h.

{this, "recalibInFit" , false};

m_recalibSeed

Gaudi::Property<bool> MuonR4::SegmentFittingAlg::m_recalibSeed {this, "SeedRecalibrate", false}

private

Toggle seed recalibration.

The two seed circles are recalibrated using the initial seed

Definition at line 111 of file SegmentFittingAlg.h.

{this, "SeedRecalibrate", false};

m_recoveryPull

Gaudi::Property<double> MuonR4::SegmentFittingAlg::m_recoveryPull {this, "RecoveryPull", 5.}

private

Definition at line 114 of file SegmentFittingAlg.h.

{this, "RecoveryPull", 5.};

m_seeder

std::unique_ptr<SegmentFit::MdtSegmentSeedGenerator> MuonR4::SegmentFittingAlg::m_seeder {}

private

Pointer to the L-R segment seeder.

Definition at line 132 of file SegmentFittingAlg.h.

{};

m_seedHitChi2

Gaudi::Property<double> MuonR4::SegmentFittingAlg::m_seedHitChi2 {this, "ResoSeedHitAssoc", 5. }

private

Two mdt seeds are the same if their defining parameters match wihin.

Definition at line 108 of file SegmentFittingAlg.h.

{this, "ResoSeedHitAssoc", 5. };

m_seedKey

SG::ReadHandleKey<SegmentSeedContainer> MuonR4::SegmentFittingAlg::m_seedKey {this, "ReadKey", "MuonHoughStationSegmentSeeds"}

private

ReadHandle of the seeds.

Definition at line 74 of file SegmentFittingAlg.h.

{this, "ReadKey", "MuonHoughStationSegmentSeeds"};

m_seedMaxBsL

Gaudi::Property<std::vector<double> > MuonR4::SegmentFittingAlg::m_seedMaxBsL

private

Initial value:

{this, "SeedMaxDistanceBsLength", 
                                                              std::vector<double>(s_stIdxMax, 2.)}

Definition at line 104 of file SegmentFittingAlg.h.

                                                         {this, "SeedMaxDistanceBsLength", 
                                                              std::vector<double>(s_stIdxMax, 2.)};

m_seedMaxBsR

Gaudi::Property<std::vector<double> > MuonR4::SegmentFittingAlg::m_seedMaxBsR

private

Initial value:

{this, "SeedMaxDistanceBsRadius", 
                                                              std::vector<double>(s_stIdxMax, 2.)}

Maximum allowed distance of the segment seed line to the beam spot measurement expressed in relative units of the beamspot radius.

The threshold may be relaxed for particular station indices.

Definition at line 102 of file SegmentFittingAlg.h.

                                                         {this, "SeedMaxDistanceBsRadius", 
                                                              std::vector<double>(s_stIdxMax, 2.)};

m_singleMlEdgeTolerance

Gaudi::Property<double> MuonR4::SegmentFittingAlg::m_singleMlEdgeTolerance { this, "SingleMlEdgeTolerance", 50. * Gaudi::Units::mm, "For Single-ML fallback to not trigger, the trajectory has to penetrate at least this much into the second multilayer (from either side) in local precision coordinate"}

private

Tolerance for the single multilayer edge crossing test, if the trajectory only slighty nicks the second ML still consider as one ML case.

Definition at line 138 of file SegmentFittingAlg.h.

{ this, "SingleMlEdgeTolerance", 50. * Gaudi::Units::mm, "For Single-ML fallback to not trigger, the trajectory has to penetrate at least this much into the second multilayer (from either side) in local precision coordinate"};

m_singleMlPhiEdgeTolerance

Gaudi::Property<double> MuonR4::SegmentFittingAlg::m_singleMlPhiEdgeTolerance { this, "SingleMlPhiEdgeTolerance", 0. * Gaudi::Units::mm, "For Single-ML fallback to not trigger, the trajectory has to penetrate at least this much into the second multilayer (from either side) in local phi coordinate"}

private

Tolerance for the single multilayer edge crossing test in the phi projection in case the trajectory only slightly nicks one of the ML.

Definition at line 141 of file SegmentFittingAlg.h.

{ this, "SingleMlPhiEdgeTolerance", 0. * Gaudi::Units::mm, "For Single-ML fallback to not trigger, the trajectory has to penetrate at least this much into the second multilayer (from either side) in local phi coordinate"};

m_tryPatternPars

Gaudi::Property<bool> MuonR4::SegmentFittingAlg::m_tryPatternPars {this, "tryPatternPars", false}

private

Try first to fit the pattern parameters. Then proceed with the straw line tangents.

Definition at line 89 of file SegmentFittingAlg.h.

{this, "tryPatternPars", false};

m_useFastFitter

Gaudi::Property<bool> MuonR4::SegmentFittingAlg::m_useFastFitter {this, "useFastFitter", true}

private

Use the fast Mdt fitter where possible.

Definition at line 118 of file SegmentFittingAlg.h.

{this, "useFastFitter", true};

m_varHandleArraysDeclared

bool AthCommonDataStore< AthCommonMsg< Gaudi::Algorithm > >::m_varHandleArraysDeclared

privateinherited

Definition at line 387 of file AthCommonDataStore.h.

m_vhka

std::vector<SG::VarHandleKeyArray*> AthCommonDataStore< AthCommonMsg< Gaudi::Algorithm > >::m_vhka

privateinherited

Definition at line 386 of file AthCommonDataStore.h.

m_visionTool

ToolHandle<MuonValR4::IPatternVisualizationTool> MuonR4::SegmentFittingAlg::m_visionTool {this, "VisualizationTool", ""}

private

Pattern visualization tool.

Definition at line 84 of file SegmentFittingAlg.h.

{this, "VisualizationTool", ""};

s_stIdxMax

auto MuonR4::SegmentFittingAlg::s_stIdxMax = Acts::toUnderlying(Muon::MuonStationIndex::StIndex::StIndexMax)

staticconstexprprivate

Definition at line 98 of file SegmentFittingAlg.h.

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The documentation for this class was generated from the following files:

• SegmentFittingAlg.h
• SegmentFittingAlg.cxx