#include <coresoftware/blob/master/offline/packages/trackreco/ActsPropagator.h>

Collaboration diagram for ActsPropagator:

Public Types
using	BoundTrackParam = Acts::BoundTrackParameters

using	BoundTrackParamResult = Acts::Result< BoundTrackParam >

using	BoundTrackParamPair = std::pair< float, BoundTrackParam >
	Return type of std::pair<path length, parameters>

using	BTPPairResult = Acts::Result< BoundTrackParamPair >

using	SurfacePtr = std::shared_ptr< const Acts::Surface >

using	Stepper = Acts::EigenStepper<>

using	FastPropagator = Acts::Propagator< Stepper >

using	SphenixPropagator = Acts::Propagator< Stepper, Acts::Navigator >

Public Member Functions
	ActsPropagator ()

	ActsPropagator (ActsGeometry *geometry)

	~ActsPropagator ()

SurfacePtr	makeVertexSurface (const SvtxVertex *vertex)

SurfacePtr	makeVertexSurface (const Acts::Vector3 &vertex)

BoundTrackParamResult	makeTrackParams (SvtxTrack track, SvtxVertexMap vertexMap)

BoundTrackParamResult	makeTrackParams (SvtxTrackState *state, int trackCharge, SurfacePtr surf)

BTPPairResult	propagateTrack (const Acts::BoundTrackParameters &params, const unsigned int sphenixLayer)

BTPPairResult	propagateTrack (const Acts::BoundTrackParameters &params, const SurfacePtr &surface)

BTPPairResult	propagateTrackFast (const Acts::BoundTrackParameters &params, const SurfacePtr &surface)

bool	checkLayer (const unsigned int &sphenixlayer, unsigned int &actsvolume, unsigned int &actslayer)

void	verbosity (int verb)

void	setConstFieldValue (float field)

void	constField ()

void	setOverstepLimit (const double overstep)

SphenixPropagator	makePropagator ()

FastPropagator	makeFastPropagator ()

Private Member Functions
void	printTrackParams (const Acts::BoundTrackParameters &params)

Private Attributes
int	m_verbosity = 0

bool	m_constField = false

ActsGeometry *	m_geometry = nullptr

float	m_fieldval = 1.4 * Acts::UnitConstants::T

float	m_overstepLimit = 0.01 * Acts::UnitConstants::cm
	Default Acts limit.

Detailed Description

Definition at line 30 of file ActsPropagator.h.

View newest version in sPHENIX GitHub at line 30 of file ActsPropagator.h

Member Typedef Documentation

using ActsPropagator::BoundTrackParam = Acts::BoundTrackParameters

Definition at line 33 of file ActsPropagator.h.

View newest version in sPHENIX GitHub at line 33 of file ActsPropagator.h

using ActsPropagator::BoundTrackParamPair = std::pair<float, BoundTrackParam>

Return type of std::pair<path length, parameters>

Definition at line 36 of file ActsPropagator.h.

View newest version in sPHENIX GitHub at line 36 of file ActsPropagator.h

using ActsPropagator::BoundTrackParamResult = Acts::Result<BoundTrackParam>

Definition at line 34 of file ActsPropagator.h.

View newest version in sPHENIX GitHub at line 34 of file ActsPropagator.h

using ActsPropagator::BTPPairResult = Acts::Result<BoundTrackParamPair>

Definition at line 37 of file ActsPropagator.h.

View newest version in sPHENIX GitHub at line 37 of file ActsPropagator.h

using ActsPropagator::FastPropagator = Acts::Propagator<Stepper>

Definition at line 40 of file ActsPropagator.h.

View newest version in sPHENIX GitHub at line 40 of file ActsPropagator.h

using ActsPropagator::SphenixPropagator = Acts::Propagator<Stepper, Acts::Navigator>

Definition at line 41 of file ActsPropagator.h.

View newest version in sPHENIX GitHub at line 41 of file ActsPropagator.h

using ActsPropagator::Stepper = Acts::EigenStepper<>

Definition at line 39 of file ActsPropagator.h.

View newest version in sPHENIX GitHub at line 39 of file ActsPropagator.h

using ActsPropagator::SurfacePtr = std::shared_ptr<const Acts::Surface>

Definition at line 38 of file ActsPropagator.h.

View newest version in sPHENIX GitHub at line 38 of file ActsPropagator.h

Constructor & Destructor Documentation

ActsPropagator::ActsPropagator ( )

inline

Definition at line 43 of file ActsPropagator.h.

View newest version in sPHENIX GitHub at line 43 of file ActsPropagator.h

ActsPropagator::ActsPropagator ( ActsGeometry * geometry )

inline

Definition at line 44 of file ActsPropagator.h.

View newest version in sPHENIX GitHub at line 44 of file ActsPropagator.h

ActsPropagator::~ActsPropagator ( )

inline

Definition at line 48 of file ActsPropagator.h.

View newest version in sPHENIX GitHub at line 48 of file ActsPropagator.h

Member Function Documentation

bool ActsPropagator::checkLayer	(	const unsigned int &	sphenixlayer,
		unsigned int &	actsvolume,
		unsigned int &	actslayer
	)

mvtx

intt

tpc

tpot only has one layer in Acts geometry

Test to make sure the found volume and layer exist

Definition at line 252 of file ActsPropagator.cc.

View newest version in sPHENIX GitHub at line 252 of file ActsPropagator.cc

References ActsGeometry::geometry(), Acts::GeometryObject::geometryId(), Acts::GeometryIdentifier::layer(), layer, m_geometry, ActsTrackingGeometry::tGeometry, and Acts::GeometryIdentifier::volume().

Referenced by propagateTrack().

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void ActsPropagator::constField ( )

inline

Definition at line 81 of file ActsPropagator.h.

View newest version in sPHENIX GitHub at line 81 of file ActsPropagator.h

References m_constField.

Referenced by ActsAlignmentStates::fillAlignmentStateMap(), and PHActsTrackProjection::propagateTrack().

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ActsPropagator::FastPropagator ActsPropagator::makeFastPropagator ( )

Definition at line 197 of file ActsPropagator.cc.

View newest version in sPHENIX GitHub at line 197 of file ActsPropagator.cc

References Acts::Logging::FATAL, ckf::field, ActsGeometry::geometry(), Acts::getDefaultLogger(), logger(), telescope_simulation::logLevel, m_constField, m_fieldval, m_geometry, m_verbosity, ActsTrackingGeometry::magField, propagation_timing::stepper, and Acts::Logging::VERBOSE.

Referenced by propagateTrackFast().

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ActsPropagator::SphenixPropagator ActsPropagator::makePropagator ( )

Definition at line 224 of file ActsPropagator.cc.

View newest version in sPHENIX GitHub at line 224 of file ActsPropagator.cc

References cfg, Acts::Logging::FATAL, ckf::field, ActsGeometry::geometry(), Acts::getDefaultLogger(), logger(), telescope_simulation::logLevel, m_constField, m_fieldval, m_geometry, m_overstepLimit, m_verbosity, ActsTrackingGeometry::magField, Acts::Test::navigator, propagation_timing::stepper, ActsTrackingGeometry::tGeometry, digitization_config::trackingGeometry, and Acts::Logging::VERBOSE.

Referenced by MakeMilleFiles::getLocalVtxDerivativesXY(), and propagateTrack().

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ActsPropagator::BoundTrackParamResult ActsPropagator::makeTrackParams	(	SvtxTrack *	track,
		SvtxVertexMap *	vertexMap
	)

Definition at line 60 of file ActsPropagator.cc.

View newest version in sPHENIX GitHub at line 60 of file ActsPropagator.cc

References Acts::UnitConstants::cm, Acts::Test::cov, Acts::GenericBoundTrackParameters< particle_hypothesis_t >::create(), ActsGeometry::geometry(), SvtxVertexMap::get(), SvtxTrack::get_charge(), SvtxTrack::get_p(), SvtxTrack::get_px(), SvtxTrack::get_py(), SvtxTrack::get_pz(), SvtxTrack::get_vertex_id(), SvtxVertex::get_x(), SvtxTrack::get_x(), SvtxVertex::get_y(), SvtxTrack::get_y(), SvtxVertex::get_z(), SvtxTrack::get_z(), ActsTrackingGeometry::getGeoContext(), m_geometry, momentum, Acts::UnitConstants::ns, and Acts::ParticleHypothesis::pion().

Referenced by MakeMilleFiles::getLocalVtxDerivativesXY(), PHActsTrackPropagator::process_event(), PHActsTrackProjection::projectTracks(), and KshortReconstruction::projectTrackToPoint().

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ActsPropagator::BoundTrackParamResult ActsPropagator::makeTrackParams	(	SvtxTrackState *	state,
		int	trackCharge,
		ActsPropagator::SurfacePtr	surf
	)

Definition at line 36 of file ActsPropagator.cc.

View newest version in sPHENIX GitHub at line 36 of file ActsPropagator.cc

References Acts::UnitConstants::cm, Acts::Test::cov, Acts::GenericBoundTrackParameters< particle_hypothesis_t >::create(), ActsGeometry::geometry(), SvtxTrackState::get_px(), SvtxTrackState::get_py(), SvtxTrackState::get_pz(), SvtxTrackState::get_x(), SvtxTrackState::get_y(), SvtxTrackState::get_z(), ActsTrackingGeometry::getGeoContext(), m_geometry, momentum, Acts::UnitConstants::ns, and Acts::ParticleHypothesis::pion().

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ActsPropagator::SurfacePtr ActsPropagator::makeVertexSurface ( const SvtxVertex * vertex )

Helper functions for creating needed input for track propagation functions below

Definition at line 22 of file ActsPropagator.cc.

View newest version in sPHENIX GitHub at line 22 of file ActsPropagator.cc

References Acts::UnitConstants::cm, SvtxVertex::get_x(), SvtxVertex::get_y(), and SvtxVertex::get_z().

Referenced by MakeMilleFiles::getLocalVtxDerivativesXY(), and KshortReconstruction::projectTrackToPoint().

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ActsPropagator::SurfacePtr ActsPropagator::makeVertexSurface ( const Acts::Vector3 & vertex )

Definition at line 30 of file ActsPropagator.cc.

View newest version in sPHENIX GitHub at line 30 of file ActsPropagator.cc

References Acts::UnitConstants::cm.

void ActsPropagator::printTrackParams ( const Acts::BoundTrackParameters & params )

private

Definition at line 322 of file ActsPropagator.cc.

View newest version in sPHENIX GitHub at line 322 of file ActsPropagator.cc

References ActsGeometry::geometry(), ActsTrackingGeometry::getGeoContext(), m_geometry, Acts::GenericBoundTrackParameters< particle_hypothesis_t >::momentum(), and Acts::GenericBoundTrackParameters< particle_hypothesis_t >::position().

Referenced by propagateTrack(), and propagateTrackFast().

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ActsPropagator::BTPPairResult ActsPropagator::propagateTrack	(	const Acts::BoundTrackParameters &	params,
		const unsigned int	sphenixLayer
	)

The return type is an Acts::Result of a std::pair, where the pair is a path length and the track parameters at the surface in units of mm and GeV. For an example of how to unpack this, see PHActsTrackProjection::propagateTrack and PHActsTrackProjection::updateSvtxTrack

Definition at line 99 of file ActsPropagator.cc.

View newest version in sPHENIX GitHub at line 99 of file ActsPropagator.cc

References checkLayer(), ActsGeometry::geometry(), ActsTrackingGeometry::getGeoContext(), m_geometry, m_verbosity, ActsTrackingGeometry::magFieldContext, makePropagator(), ckf::options, and printTrackParams().

Referenced by PHTpcResiduals::processTrack(), KshortReconstruction::projectTrackToPoint(), and PHActsTrackPropagator::propagateTrack().

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ActsPropagator::BTPPairResult ActsPropagator::propagateTrack	(	const Acts::BoundTrackParameters &	params,
		const SurfacePtr &	surface
	)

Definition at line 140 of file ActsPropagator.cc.

View newest version in sPHENIX GitHub at line 140 of file ActsPropagator.cc

References ActsGeometry::geometry(), ActsTrackingGeometry::getGeoContext(), m_geometry, m_verbosity, ActsTrackingGeometry::magFieldContext, makePropagator(), ckf::options, and printTrackParams().

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ActsPropagator::BTPPairResult ActsPropagator::propagateTrackFast	(	const Acts::BoundTrackParameters &	params,
		const SurfacePtr &	surface
	)

The following function takes the track parameters at the vertex and propagates them in isolation to the requested surface, i.e. it does NOT stop at each layer in the sPHENIX detector on the way to the target surface

Definition at line 169 of file ActsPropagator.cc.

View newest version in sPHENIX GitHub at line 169 of file ActsPropagator.cc

References ActsGeometry::geometry(), ActsTrackingGeometry::getGeoContext(), m_geometry, m_verbosity, ActsTrackingGeometry::magFieldContext, makeFastPropagator(), ckf::options, and printTrackParams().

Referenced by PHActsTrackProjection::propagateTrack().

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void ActsPropagator::setConstFieldValue ( float field )

inline

Definition at line 80 of file ActsPropagator.h.

View newest version in sPHENIX GitHub at line 80 of file ActsPropagator.h

References ckf::field, and m_fieldval.

Referenced by ActsAlignmentStates::fillAlignmentStateMap(), and PHActsTrackProjection::propagateTrack().