Implementation of an IMuonSegmentFittingTool. More...

#include <MuonSegmentFittingTool.h>

Inheritance diagram for Muon::MuonSegmentFittingTool:

Collaboration diagram for Muon::MuonSegmentFittingTool:

Public Member Functions
	MuonSegmentFittingTool (const std::string &, const std::string &, const IInterface *)
virtual	~MuonSegmentFittingTool ()=default
virtual StatusCode	initialize ()
Trk::Track *	fit (const Amg::Vector3D &gpos, const Amg::Vector3D &gdir, const Trk::PlaneSurface &surf, const std::vector< const Trk::MeasurementBase * > &rioVec) const
	fit segment parameters + hits producing a track
Trk::Track *	fit (const MuonSegment &segment) const
	fit segment parameters + hits producing a track
void	updateSegmentParameters (const Trk::Track &track, const Trk::PlaneSurface &surf, Amg::Vector2D &segLocPos, Trk::LocalDirection &segLocDir, Amg::MatrixX &locerr) const
	update the parameters of the segment using the track information
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	sysInitialize () override
	Perform system initialization for an algorithm.
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

Static Public Member Functions
static const InterfaceID &	interfaceID ()
	access to tool interface

Public Attributes
Trk::MagneticFieldProperties	m_magFieldProperties
ToolHandle< Trk::IPropagator >	m_slPropagator
ToolHandle< Trk::ITrackFitter >	m_slTrackFitter
ToolHandle< Trk::ITrackFitter >	m_curvedTrackFitter
ToolHandle< Muon::IMuonTrackCleaner >	m_trackCleaner
bool	m_updatePrecisionCoordinate

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
typedef ServiceHandle< StoreGateSvc >	StoreGateSvc_t

Private Member Functions
Gaudi::Details::PropertyBase &	declareGaudiProperty (Gaudi::Property< T, V, H > &hndl, const SG::VarHandleKeyType &)
	specialization for handling Gaudi::Property<SG::VarHandleKey>

Private Attributes
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

Detailed Description

Implementation of an IMuonSegmentFittingTool.

Definition at line 38 of file MuonSegmentFittingTool.h.

Member Typedef Documentation

◆ StoreGateSvc_t

typedef ServiceHandle<StoreGateSvc> AthCommonDataStore< AthCommonMsg< AlgTool > >::StoreGateSvc_t

privateinherited

Definition at line 388 of file AthCommonDataStore.h.

Constructor & Destructor Documentation

◆ MuonSegmentFittingTool()

Muon::MuonSegmentFittingTool::MuonSegmentFittingTool	(	const std::string &	t,
		const std::string &	n,
		const IInterface *	p )

Definition at line 26 of file MuonSegmentFittingTool.cxx.

                                                                                                              :
        AthAlgTool(t, n, p), m_magFieldProperties(Trk::NoField) {
        declareInterface<IMuonSegmentFittingTool>(this);
        declareProperty("UpdatePrecisionCoordinate", m_updatePrecisionCoordinate = false);
    }

◆ ~MuonSegmentFittingTool()

virtual Muon::MuonSegmentFittingTool::~MuonSegmentFittingTool ( )

virtualdefault

Member Function Documentation

◆ declareGaudiProperty()

Gaudi::Details::PropertyBase & AthCommonDataStore< AthCommonMsg< AlgTool > >::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< AlgTool > >::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< AlgTool > >::detStore ( ) const

inlineinherited

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

Definition at line 95 of file AthCommonDataStore.h.

95{ return m_detStore; }

AthCommonDataStore< AthCommonMsg< AlgTool > >::m_detStore

StoreGateSvc_t m_detStore

Definition AthCommonDataStore.h:393

◆ evtStore()

ServiceHandle< StoreGateSvc > & AthCommonDataStore< AthCommonMsg< AlgTool > >::evtStore ( )

inlineinherited

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

Definition at line 85 of file AthCommonDataStore.h.

85{ return m_evtStore; }

AthCommonDataStore< AthCommonMsg< AlgTool > >::m_evtStore

StoreGateSvc_t m_evtStore

Definition AthCommonDataStore.h:390

◆ extraDeps_update_handler()

void AthCommonDataStore< AthCommonMsg< AlgTool > >::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

◆ fit() [1/2]

Trk::Track * Muon::MuonSegmentFittingTool::fit	(	const Amg::Vector3D &	gpos,
		const Amg::Vector3D &	gdir,
		const Trk::PlaneSurface &	surf,
		const std::vector< const Trk::MeasurementBase * > &	rioVec ) const

virtual

fit segment parameters + hits producing a track

Implements Muon::IMuonSegmentFittingTool.

Definition at line 44 of file MuonSegmentFittingTool.cxx.

                                                                                                      {
        ATH_MSG_VERBOSE(" trying to fit segment ");
        const EventContext& ctx = Gaudi::Hive::currentContext();
        Amg::Vector3D gdir = gDir;
 
        double gdirNorm = gdir.mag();
        bool isCurvedSegment = (gdirNorm > 1.5);
        if (isCurvedSegment) {
            // re-normalize the gdir
            gdir = Amg::Vector3D(gdir.x() / gdirNorm, gdir.y() / gdirNorm, gdir.z() / gdirNorm);
        }
 
        double charge = 0;
        Trk::AtaPlane segPars(gpos, gdir, charge, surf);
 
        // extrapolate segment parameters to first measurements
        const Trk::MeasurementBase* firstMeas = rioVec.front();
        std::unique_ptr<Trk::TrackParameters> exPars =
            m_slPropagator->propagate(ctx, segPars, firstMeas->associatedSurface(), Trk::anyDirection, false, m_magFieldProperties);
        if (!exPars) {
            ATH_MSG_DEBUG(" Propagation failed!! ");
            return nullptr;
        }
 
        // small shift towards the ip
        double sign = exPars->position().dot(exPars->momentum()) > 0 ? 1. : -1.;
        Amg::Vector3D perpos = exPars->position() - sign * exPars->momentum().unit();
 
        // create start parameter
        double phi = gdir.phi();
        double theta = gdir.theta();
        double qoverp = 0;
        Trk::PerigeeSurface persurf(perpos);
        Trk::Perigee startpar(0, 0, phi, theta, qoverp, persurf);
 
        // copy measurements into new vector
        std::vector<const Trk::MeasurementBase*> vec2;
        vec2.reserve(rioVec.size());
        std::copy(rioVec.begin(), rioVec.end(), std::back_inserter(vec2));
 
        // fit
        std::unique_ptr<Trk::Track> newtrack;
        // use the full fitter if the segment is curved
        if (isCurvedSegment) {
            newtrack = m_curvedTrackFitter->fit(ctx, vec2, startpar, false, Trk::ParticleSwitcher::particle[0]);
        }
        // else use the straight line fitter
        else {
            newtrack = m_slTrackFitter->fit(ctx, vec2, startpar, false, Trk::nonInteracting);
        }
 
        if (!newtrack) {
            ATH_MSG_VERBOSE("     fit failed ");
            return nullptr;
        }
        constexpr double chi2Cut = 10.;
        std::unique_ptr<Trk::Track> cleanTrack = m_trackCleaner->clean(*newtrack, ctx);
        if (!cleanTrack && !isCurvedSegment && calcChi2(*newtrack) > chi2Cut) {
            ATH_MSG_VERBOSE("     lost in cleaner ");
            return nullptr;
        }
 
        if (cleanTrack && !(*cleanTrack->perigeeParameters() == *newtrack->perigeeParameters()) && !isCurvedSegment) {
            // using release until the entire code can be migrated to use smart pointers
            newtrack.swap(cleanTrack);
        }
 
        // reject fit if larger than cut
        if (calcChi2(*newtrack) > chi2Cut) {
            ATH_MSG_VERBOSE("     reduced chi2 to large " << calcChi2(*newtrack) << "  cut  " << chi2Cut);
            return nullptr;
        }
 
        if (msgLvl(MSG::DEBUG)) {
            const Trk::Perigee* pp = newtrack->perigeeParameters();
            if (pp) {
                ATH_MSG_DEBUG(" pos " << std::setprecision(5) << pp->position() << " phi " << pp->momentum().phi() << " theta "
                                      << pp->momentum().theta() << " q*mom " << pp->momentum().mag() * pp->charge() << " pt "
                                      << pp->momentum().perp());
            } else {
                ATH_MSG_DEBUG(" no perigee ");
            }
        }
        return newtrack.release();
    }

◆ fit() [2/2]

Trk::Track * Muon::MuonSegmentFittingTool::fit ( const MuonSegment & segment ) const

virtual

fit segment parameters + hits producing a track

Implements Muon::IMuonSegmentFittingTool.

Definition at line 40 of file MuonSegmentFittingTool.cxx.

                                                                          {
        return fit(segment.globalPosition(), segment.globalDirection(), segment.associatedSurface(), segment.containedMeasurements());
    }

◆ initialize()

StatusCode Muon::MuonSegmentFittingTool::initialize ( )

virtual

Definition at line 32 of file MuonSegmentFittingTool.cxx.

                                                  {
        ATH_CHECK(m_slPropagator.retrieve());
        ATH_CHECK(m_slTrackFitter.retrieve());
        ATH_CHECK(m_curvedTrackFitter.retrieve());
        ATH_CHECK(m_trackCleaner.retrieve());
        return StatusCode::SUCCESS;
    }

◆ inputHandles()

virtual std::vector< Gaudi::DataHandle * > AthCommonDataStore< AthCommonMsg< AlgTool > >::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.

◆ interfaceID()

const InterfaceID & Muon::IMuonSegmentFittingTool::interfaceID ( )

inlinestaticinherited

access to tool interface

Definition at line 47 of file IMuonSegmentFittingTool.h.

47{ return IID_IMuonSegmentFittingTool; }

IID_IMuonSegmentFittingTool

static const InterfaceID IID_IMuonSegmentFittingTool("Muon::IMuonSegmentFittingTool", 1, 0)

◆ msg()

MsgStream & AthCommonMsg< AlgTool >::msg ( ) const

inlineinherited

Definition at line 24 of file AthCommonMsg.h.

                                {
    return this->msgStream();
  }

◆ msgLvl()

bool AthCommonMsg< AlgTool >::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< AlgTool > >::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< AlgTool > >::renounce ( T & h )

inlineprotectedinherited

Definition at line 380 of file AthCommonDataStore.h.

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

◆ renounceArray()

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

inlineprotectedinherited

remove all handles from I/O resolution

Definition at line 364 of file AthCommonDataStore.h.

                                                          {
    handlesArray.renounce();
  }

◆ sysInitialize()

virtual StatusCode AthCommonDataStore< AthCommonMsg< AlgTool > >::sysInitialize ( )

overridevirtualinherited

Perform system initialization for an algorithm.

We override this to declare all the elements of handle key arrays at the end of initialization. See comments on updateVHKA.

Reimplemented in asg::AsgMetadataTool, AthCheckedComponent< AthAlgTool >, AthCheckedComponent<::AthAlgTool >, and DerivationFramework::CfAthAlgTool.

◆ sysStart()

virtual StatusCode AthCommonDataStore< AthCommonMsg< AlgTool > >::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.

◆ updateSegmentParameters()

void Muon::MuonSegmentFittingTool::updateSegmentParameters	(	const Trk::Track &	track,
		const Trk::PlaneSurface &	surf,
		Amg::Vector2D &	segLocPos,
		Trk::LocalDirection &	segLocDir,
		Amg::MatrixX &	locerr ) const

virtual

update the parameters of the segment using the track information

Implements Muon::IMuonSegmentFittingTool.

Definition at line 131 of file MuonSegmentFittingTool.cxx.

                                                                                                                 {
        ATH_MSG_DEBUG(" old segment parameters: pos (" << segLocPos[Trk::locX] << "," << segLocPos[Trk::locY] << ")  dir ("
                                                       << segLocDir.angleXZ() << "," << segLocDir.angleYZ() << ") ");
 
        const EventContext& ctx = Gaudi::Hive::currentContext();
        const Trk::Perigee* pp = track.perigeeParameters();
        if (!pp) {
            ATH_MSG_WARNING(" track without perigee ");
            return;
        }
 
        std::unique_ptr<Trk::TrackParameters> exPars =
            m_slPropagator->propagate(ctx, *pp, surf, Trk::anyDirection, false, m_magFieldProperties);
        if (!exPars) {
            ATH_MSG_WARNING(" extrapolation failed, this should not happen ");
            return;
        }
 
        Amg::Vector2D lpos{0., 0.};
        surf.globalToLocal(exPars->position(), exPars->position(), lpos);
        Trk::LocalDirection ldir;
        surf.globalToLocalDirection(exPars->momentum().unit(), ldir);
        ATH_MSG_DEBUG(" new segment parameters: pos (" << lpos[Trk::locX] << "," << lpos[Trk::locY] << ")  dir (" << ldir.angleXZ() << ","
                                                       << ldir.angleYZ() << ") ");
 
        segLocPos[Trk::locX] = lpos[Trk::locX];
        if (m_updatePrecisionCoordinate) segLocPos[Trk::locY] = lpos[Trk::locY];
        segLocDir = Trk::LocalDirection(ldir.angleXZ(), m_updatePrecisionCoordinate ? ldir.angleYZ() : segLocDir.angleYZ());
 
        if (exPars->covariance()) locerr = *exPars->covariance();
    }

◆ updateVHKA()

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

inlineinherited

Definition at line 308 of file AthCommonDataStore.h.

                                               {
    // debug() << "updateVHKA for property " << p.name() << " " << p.toString() 
    //         << "  size: " << m_vhka.size() << endmsg;
    for (auto &a : m_vhka) {
      std::vector<SG::VarHandleKey*> keys = a->keys();
      for (auto k : keys) {
        k->setOwner(this);
      }
    }
  }

Member Data Documentation

◆ m_curvedTrackFitter

ToolHandle<Trk::ITrackFitter> Muon::MuonSegmentFittingTool::m_curvedTrackFitter

Initial value:

{
            this,
            "CurvedFitter",
            "Trk::GlobalChi2Fitter/MCTBFitter",
        }

Definition at line 69 of file MuonSegmentFittingTool.h.

                                                       {
            this,
            "CurvedFitter",
            "Trk::GlobalChi2Fitter/MCTBFitter",
        };  //<! fitter, curved tracks

◆ m_detStore

StoreGateSvc_t AthCommonDataStore< AthCommonMsg< AlgTool > >::m_detStore

privateinherited

Pointer to StoreGate (detector store by default)

Definition at line 393 of file AthCommonDataStore.h.

◆ m_evtStore

StoreGateSvc_t AthCommonDataStore< AthCommonMsg< AlgTool > >::m_evtStore

privateinherited

Pointer to StoreGate (event store by default)

Definition at line 390 of file AthCommonDataStore.h.

◆ m_magFieldProperties

Trk::MagneticFieldProperties Muon::MuonSegmentFittingTool::m_magFieldProperties

Definition at line 57 of file MuonSegmentFittingTool.h.

◆ m_slPropagator

ToolHandle<Trk::IPropagator> Muon::MuonSegmentFittingTool::m_slPropagator

Initial value:

{
            this,
            "SLPropagator",
            "Trk::RungeKuttaPropagator/AtlasRungeKuttaPropagator",
        }

Definition at line 59 of file MuonSegmentFittingTool.h.

                                                 {
            this,
            "SLPropagator",
            "Trk::RungeKuttaPropagator/AtlasRungeKuttaPropagator",
        };  //<! propagator, always use straightline

◆ m_slTrackFitter

ToolHandle<Trk::ITrackFitter> Muon::MuonSegmentFittingTool::m_slTrackFitter

Initial value:

{
            this,
            "SLFitter",
            "Trk::GlobalChi2Fitter/MCTBSLFitter",
        }

Definition at line 64 of file MuonSegmentFittingTool.h.

                                                   {
            this,
            "SLFitter",
            "Trk::GlobalChi2Fitter/MCTBSLFitter",
        };  //<! fitter, always use straightline

◆ m_trackCleaner

ToolHandle<Muon::IMuonTrackCleaner> Muon::MuonSegmentFittingTool::m_trackCleaner

Initial value:

{
            this,
            "TrackCleaner",
            "Muon::MuonTrackCleaner/MuonTrackCleaner",
        }

Definition at line 74 of file MuonSegmentFittingTool.h.

                                                        {
            this,
            "TrackCleaner",
            "Muon::MuonTrackCleaner/MuonTrackCleaner",
        };

◆ m_updatePrecisionCoordinate

bool Muon::MuonSegmentFittingTool::m_updatePrecisionCoordinate

Definition at line 80 of file MuonSegmentFittingTool.h.

◆ m_varHandleArraysDeclared

bool AthCommonDataStore< AthCommonMsg< AlgTool > >::m_varHandleArraysDeclared

privateinherited

Definition at line 399 of file AthCommonDataStore.h.

◆ m_vhka

std::vector<SG::VarHandleKeyArray*> AthCommonDataStore< AthCommonMsg< AlgTool > >::m_vhka

privateinherited

Definition at line 398 of file AthCommonDataStore.h.

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

Public Member Functions

Static Public Member Functions

Public Attributes

Protected Member Functions

Private Types

Private Member Functions

Private Attributes

Detailed Description

Member Typedef Documentation

◆ StoreGateSvc_t

Constructor & Destructor Documentation

◆ MuonSegmentFittingTool()

◆ ~MuonSegmentFittingTool()

Member Function Documentation

◆ declareGaudiProperty()

◆ declareProperty()

◆ detStore()

◆ evtStore()

◆ extraDeps_update_handler()

◆ fit() [1/2]

◆ fit() [2/2]

◆ initialize()

◆ inputHandles()

◆ interfaceID()

◆ msg()

◆ msgLvl()

◆ outputHandles()

◆ renounce()

◆ renounceArray()

◆ sysInitialize()

◆ sysStart()

◆ updateSegmentParameters()

◆ updateVHKA()

Member Data Documentation

◆ m_curvedTrackFitter

◆ m_detStore

◆ m_evtStore

◆ m_magFieldProperties

◆ m_slPropagator

◆ m_slTrackFitter

◆ m_trackCleaner

◆ m_updatePrecisionCoordinate

◆ m_varHandleArraysDeclared

◆ m_vhka