Helper struct to delegate the EDM interactions with the space point container during the seeding from Acts to the Athena EDM. More...

#include <MdtSegmentSeedGenerator.h>

Inheritance diagram for MuonR4::SegmentFit::SeederStateBase:

Collaboration diagram for MuonR4::SegmentFit::SeederStateBase:

Public Types
using	CalibCont_t = Segment::MeasVec
	Abrivation of the collection of calibrated space points.
using	HitVec = std::vector<const SpacePoint*>
using	HitLayVec = std::vector<HitVec>

Public Member Functions
const SegmentSeed *	parent () const
	Returns the parent seed from which the state is constructed.
bool	goodCandidate (const SpacePoint &testMdt) const
	Returns whether the hit is a good candidate for seeding.
double	candidateChi2 (const Acts::CalibrationContext &cctx, const Amg::Vector3D &seedPos, const Amg::Vector3D &seedDir, const double t0, const SpacePoint &candidate) const
	Returns the pull of the candidate w.r.t.
double	strawRadius (const SpacePoint &testMdt) const
	Returns the outer tube radius of the space point.
CalibCont_t	newContainer (const Acts::CalibrationContext &cctx) const
	Creates a new candidate seed container.
void	append (const Acts::CalibrationContext &cctx, const Amg::Vector3D &pos, const Amg::Vector3D &dir, const double t0, const SpacePoint &appendMe, CalibCont_t &appendTo) const
	Appends the space point measurement to the candidate seed container Optionally, the hit may be calibrated.
bool	stopSeeding (const std::size_t lowerLayer, const std::size_t upperLayer) const
	Requests whether the seed line generation shall be stopped based on the pair of.
bool	goodForSeeding (const Amg::Vector3D &tangentPos, const Amg::Vector3D &tangentDir) const
	Selector function to remove the two line tangent seed using external constaints (e.g.
const HitLayVec &	mdtHits () const
	Returns the sorted Mdt hits.
const HitLayVec &	strawHits () const
	Returns the sorted Mdt hits.
std::size_t	nMdtHits () const
	Returns the number of all Mdt hits in the seed.
const HitLayVec &	stripHits () const
	Returns the sorted strip hits.
std::size_t	nStripHits () const
	Returns the number of all strip hits in the seed.
std::size_t	firstLayerFrom2ndMl () const
	Returns the layer index with hits from the second multilayer.

Protected Types
using	SeedSelector_t
	Selector function to sort out seed lines that are incompatible with external geometrical constaints e.g.

Protected Member Functions
	SeederStateBase (const SegmentSeed parentSeed, const ISpacePointCalibrator calibrator, const bool calibratedPull, SeedSelector_t &&seedSelector=nullptr)
	Protected constructor to prevent instantiation from anything else than the seeder state.

Private Attributes
const SegmentSeed *	m_parent {}
const ISpacePointCalibrator *	m_calibrator {nullptr}
bool	m_calibratePull {false}
const SeedSelector_t	m_selector {nullptr}
HitLayVec	m_mdtLayers {}
	Sorted Mdt hits per tube layer.
HitLayVec	m_stripLayers {}
	Sorted Strip hits per gasGap strip.
std::size_t	m_nMdtHits {0}
	Number of all Mdt tube hits.
std::size_t	m_nStripHits {0}
	Number of all strip hits.
std::size_t	m_tubeLaySwitch {std::numeric_limits<std::size_t>::max()}
	Index of the first tube-layer from the second multilayer.

Detailed Description

Helper struct to delegate the EDM interactions with the space point container during the seeding from Acts to the Athena EDM.

Definition at line 22 of file MdtSegmentSeedGenerator.h.

Member Typedef Documentation

◆ CalibCont_t

using MuonR4::SegmentFit::SeederStateBase::CalibCont_t = Segment::MeasVec

Abrivation of the collection of calibrated space points.

Definition at line 45 of file MdtSegmentSeedGenerator.h.

◆ HitLayVec

using MuonR4::SpacePointPerLayerSplitter::HitLayVec = std::vector<HitVec>

inherited

Definition at line 21 of file SpacePointPerLayerSplitter.h.

◆ HitVec

using MuonR4::SpacePointPerLayerSplitter::HitVec = std::vector<const SpacePoint*>

inherited

Definition at line 20 of file SpacePointPerLayerSplitter.h.

◆ SeedSelector_t

using MuonR4::SegmentFit::SeederStateBase::SeedSelector_t

protected

Initial value:

std::function<bool(const Amg::Vector3D& pos,

const Amg::Vector3D& dir)>

Amg::Vector3D

Eigen::Matrix< double, 3, 1 > Vector3D

Definition GeoPrimitives.h:47

Selector function to sort out seed lines that are incompatible with external geometrical constaints e.g.

beampot

Definition at line 26 of file MdtSegmentSeedGenerator.h.

Constructor & Destructor Documentation

◆ SeederStateBase()

MuonR4::SegmentFit::SeederStateBase::SeederStateBase	(	const SegmentSeed *	parentSeed,
		const ISpacePointCalibrator *	calibrator,
		const bool	calibratedPull,
		SeedSelector_t &&	seedSelector = nullptr )

explicitprotected

Protected constructor to prevent instantiation from anything else than the seeder state.

Parameters

parentSeed	Pointer to the HoughSeed from which all the Mdt segment seeds are constructed
calibrator	Pointer to the calibrator to be used to construct the calibrated space points and (optionally) to refine the pull calculation
calibratedPull	First calibrate the space point before calculating the pull w.r.t. seed line
seedSelector	Utility function to reject bad drift circle seeds based on geometrical constaints

Definition at line 23 of file MdtSegmentSeedGenerator.cxx.

                                                                   :
        SpacePointPerLayerSplitter{parentSeed->getHitsInMax()},
        m_parent{parentSeed}, 
        m_calibrator{calibrator},
        m_calibratePull{calibratePull},
        m_selector{std::move(seedSelector)} {}

Member Function Documentation

◆ append()

void MuonR4::SegmentFit::SeederStateBase::append	(	const Acts::CalibrationContext &	cctx,
		const Amg::Vector3D &	pos,
		const Amg::Vector3D &	dir,
		const double	t0,
		const SpacePoint &	appendMe,
		CalibCont_t &	appendTo ) const

Appends the space point measurement to the candidate seed container Optionally, the hit may be calibrated.

Parameters

cctx	Calibration context to access the conditions data
pos	Reference position of the seed line
dir	Reference direction of the seed line
t0	Offset in the time of arrival (Acts units)
appendMe	Space point candidate to append to the container
appendTo	Output container to which the space point is appended

Definition at line 71 of file MdtSegmentSeedGenerator.cxx.

                                                                 {
        const EventContext& ctx{*cctx.get<const EventContext*>()};
        appendTo.push_back(m_calibrator->calibrate(ctx, &appendMe, pos, dir, t0));
    }

◆ candidateChi2()

double MuonR4::SegmentFit::SeederStateBase::candidateChi2	(	const Acts::CalibrationContext &	cctx,
		const Amg::Vector3D &	seedPos,
		const Amg::Vector3D &	seedDir,
		const double	t0,
		const SpacePoint &	candidate ) const

Returns the pull of the candidate w.r.t.

the line & the time offset

Parameters

cctx	Calibration context to access the conditions data
seedPos	Reference position of the seed line
seedDir	Reference direction of the seed line
t0	Offset in the time of arrival (Acts units)
candidate	Space point which chi2 is to be evaluated

Definition at line 54 of file MdtSegmentSeedGenerator.cxx.

                                                                               {
        if (m_calibratePull) {
            const EventContext& ctx{*cctx.get<const EventContext*>()};
            auto calibSp = m_calibrator->calibrate(ctx, &candidate, seedPos, seedDir, t0);
            assert(calibSp != nullptr);
            return SeedingAux::chi2Term(seedPos, seedDir, *calibSp);
        }
        return SeedingAux::chi2Term(seedPos, seedDir, candidate);
    }

◆ firstLayerFrom2ndMl()

std::size_t MuonR4::SpacePointPerLayerSplitter::firstLayerFrom2ndMl ( ) const

inlineinherited

Returns the layer index with hits from the second multilayer.

Definition at line 47 of file SpacePointPerLayerSplitter.h.

                                                  {
              return m_tubeLaySwitch;
            }

◆ goodCandidate()

bool MuonR4::SegmentFit::SeederStateBase::goodCandidate ( const SpacePoint & testMdt ) const

Returns whether the hit is a good candidate for seeding.

Parameters

testMdt Reference to the space point considered for seeding

Definition at line 40 of file MdtSegmentSeedGenerator.cxx.

                                                                       {
        switch (testMdt.type()) {
            using enum xAOD::UncalibMeasType;
            case MdtDriftCircleType:
                return static_cast<const xAOD::MdtDriftCircle*>(testMdt.primaryMeasurement())->status() ==
                        Muon::MdtDriftCircleStatus::MdtStatusDriftTime;
            case RpcStripType:
            case TgcStripType:
                return true;
            default:
                return false;
        }
        return false;
    }

◆ goodForSeeding()

bool MuonR4::SegmentFit::SeederStateBase::goodForSeeding	(	const Amg::Vector3D &	tangentPos,
		const Amg::Vector3D &	tangentDir ) const

Selector function to remove the two line tangent seed using external constaints (e.g.

beamspot)

Parameters

tangentPos	Position of the seed line
tangentDir	Direction of the seed line

Definition at line 85 of file MdtSegmentSeedGenerator.cxx.

                                                                              {
        return !m_selector || m_selector(tangentPos, tangentDir);
    }

◆ mdtHits()

const HitLayVec & MuonR4::SpacePointPerLayerSplitter::mdtHits ( ) const

inlineinherited

Returns the sorted Mdt hits.

Definition at line 27 of file SpacePointPerLayerSplitter.h.

                                             {
              return m_mdtLayers;
            }

◆ newContainer()

SeederStateBase::CalibCont_t MuonR4::SegmentFit::SeederStateBase::newContainer ( const Acts::CalibrationContext & cctx ) const

Creates a new candidate seed container.

Parameters

cctx	Calibration context (defined by the interface)

Definition at line 68 of file MdtSegmentSeedGenerator.cxx.

                                                                           {
        return CalibCont_t{};
    }

◆ nMdtHits()

std::size_t MuonR4::SpacePointPerLayerSplitter::nMdtHits ( ) const

inlineinherited

Returns the number of all Mdt hits in the seed.

Definition at line 35 of file SpacePointPerLayerSplitter.h.

                                       {
              return m_nMdtHits;
            }

◆ nStripHits()

std::size_t MuonR4::SpacePointPerLayerSplitter::nStripHits ( ) const

inlineinherited

Returns the number of all strip hits in the seed.

Definition at line 43 of file SpacePointPerLayerSplitter.h.

                                         {
              return m_nStripHits;
            }

◆ parent()

const SegmentSeed * MuonR4::SegmentFit::SeederStateBase::parent ( ) const

Returns the parent seed from which the state is constructed.

Definition at line 33 of file MdtSegmentSeedGenerator.cxx.

33{ return m_parent; }

◆ stopSeeding()

bool MuonR4::SegmentFit::SeederStateBase::stopSeeding	(	const std::size_t	lowerLayer,
		const std::size_t	upperLayer ) const

Requests whether the seed line generation shall be stopped based on the pair of.

Parameters

lowerLayer	Index of the lower hit layer from which the seed circles are picked
upperLayer	Index of the upper hit layer from which the seed circles are picked

Definition at line 80 of file MdtSegmentSeedGenerator.cxx.

                                                                          {
        return lowerLayer >= firstLayerFrom2ndMl() || lowerLayer >= upperLayer;
    }

◆ strawHits()

const HitLayVec & MuonR4::SpacePointPerLayerSplitter::strawHits ( ) const

inlineinherited

Returns the sorted Mdt hits.

Definition at line 31 of file SpacePointPerLayerSplitter.h.

                                               {
              return m_mdtLayers;
            }

◆ strawRadius()

double MuonR4::SegmentFit::SeederStateBase::strawRadius ( const SpacePoint & testMdt ) const

Returns the outer tube radius of the space point.

Parameters

testMdt Reference to the Mdt space point of interest

Definition at line 35 of file MdtSegmentSeedGenerator.cxx.

                                                                       {
        assert(testMdt.type() == xAOD::UncalibMeasType::MdtDriftCircleType);
        return static_cast<const xAOD::MdtDriftCircle*>(testMdt.primaryMeasurement())
                ->readoutElement()->tubeRadius();
    }

◆ stripHits()

const HitLayVec & MuonR4::SpacePointPerLayerSplitter::stripHits ( ) const

inlineinherited

Returns the sorted strip hits.

Definition at line 39 of file SpacePointPerLayerSplitter.h.

                                               {
              return m_stripLayers;
            }

Member Data Documentation

◆ m_calibratePull

bool MuonR4::SegmentFit::SeederStateBase::m_calibratePull {false}

private

Definition at line 98 of file MdtSegmentSeedGenerator.h.

98{false};

◆ m_calibrator

const ISpacePointCalibrator* MuonR4::SegmentFit::SeederStateBase::m_calibrator {nullptr}

private

Definition at line 97 of file MdtSegmentSeedGenerator.h.

97{nullptr};

◆ m_mdtLayers

HitLayVec MuonR4::SpacePointPerLayerSplitter::m_mdtLayers {}

privateinherited

Sorted Mdt hits per tube layer.

Definition at line 52 of file SpacePointPerLayerSplitter.h.

52{};

◆ m_nMdtHits

std::size_t MuonR4::SpacePointPerLayerSplitter::m_nMdtHits {0}

privateinherited

Number of all Mdt tube hits.

Definition at line 56 of file SpacePointPerLayerSplitter.h.

56{0};

◆ m_nStripHits

std::size_t MuonR4::SpacePointPerLayerSplitter::m_nStripHits {0}

privateinherited

Number of all strip hits.

Definition at line 58 of file SpacePointPerLayerSplitter.h.

58{0};

◆ m_parent

const SegmentSeed* MuonR4::SegmentFit::SeederStateBase::m_parent {}

private

Definition at line 96 of file MdtSegmentSeedGenerator.h.

96{};

◆ m_selector

const SeedSelector_t MuonR4::SegmentFit::SeederStateBase::m_selector {nullptr}

private

Definition at line 99 of file MdtSegmentSeedGenerator.h.

99{nullptr};

◆ m_stripLayers

HitLayVec MuonR4::SpacePointPerLayerSplitter::m_stripLayers {}

privateinherited

Sorted Strip hits per gasGap strip.

Definition at line 54 of file SpacePointPerLayerSplitter.h.

54{};

◆ m_tubeLaySwitch

std::size_t MuonR4::SpacePointPerLayerSplitter::m_tubeLaySwitch {std::numeric_limits<std::size_t>::max()}

privateinherited

Index of the first tube-layer from the second multilayer.

Definition at line 60 of file SpacePointPerLayerSplitter.h.

60{std::numeric_limits<std::size_t>::max()};

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

Public Types

Public Member Functions

Protected Types

Protected Member Functions

Private Attributes

Detailed Description

Member Typedef Documentation

◆ CalibCont_t

◆ HitLayVec

◆ HitVec

◆ SeedSelector_t

Constructor & Destructor Documentation

◆ SeederStateBase()

Member Function Documentation

◆ append()

◆ candidateChi2()

◆ firstLayerFrom2ndMl()

◆ goodCandidate()

◆ goodForSeeding()

◆ mdtHits()

◆ newContainer()

◆ nMdtHits()

◆ nStripHits()

◆ parent()

◆ stopSeeding()

◆ strawHits()

◆ strawRadius()

◆ stripHits()

Member Data Documentation

◆ m_calibratePull

◆ m_calibrator

◆ m_mdtLayers

◆ m_nMdtHits

◆ m_nStripHits

◆ m_parent

◆ m_selector

◆ m_stripLayers

◆ m_tubeLaySwitch