Trk::GsfExtrapolator Class Reference

#include <GsfExtrapolator.h>

Inheritance diagram for Trk::GsfExtrapolator:

Collaboration diagram for Trk::GsfExtrapolator:

Public Member Functions
	GsfExtrapolator (const std::string &, const std::string &, const IInterface *)
	Constructor with AlgTool parameters. More...
virtual	~GsfExtrapolator () override final
	Destructor. More...
virtual StatusCode	initialize () override final
	AlgTool initialise method. More...
virtual MultiComponentState	extrapolate (const EventContext &ctx, Cache &, const MultiComponentState &, const Surface &, PropDirection direction, const BoundaryCheck &boundaryCheck, ParticleHypothesis particleHypothesis=nonInteracting) const override final
	Configured AlgTool extrapolation method (1) More...
virtual MultiComponentState	extrapolateDirectly (const EventContext &ctx, const MultiComponentState &, const Surface &, PropDirection direction, const BoundaryCheck &boundaryCheck, ParticleHypothesis particleHypothesis=nonInteracting) const override final
	Configured AlgTool extrapolation without material effects method (2) More...
ServiceHandle< StoreGateSvc > &	evtStore ()
	The standard StoreGateSvc (event store) Returns (kind of) a pointer to the StoreGateSvc. More...
const ServiceHandle< StoreGateSvc > &	evtStore () const
	The standard StoreGateSvc (event store) Returns (kind of) a pointer to the StoreGateSvc. More...
const ServiceHandle< StoreGateSvc > &	detStore () const
	The standard StoreGateSvc/DetectorStore Returns (kind of) a pointer to the StoreGateSvc. More...
virtual StatusCode	sysInitialize () override
	Perform system initialization for an algorithm. More...
virtual StatusCode	sysStart () override
	Handle START transition. More...
virtual std::vector< Gaudi::DataHandle * >	inputHandles () const override
	Return this algorithm's input handles. More...
virtual std::vector< Gaudi::DataHandle * >	outputHandles () const override
	Return this algorithm's output handles. More...
Gaudi::Details::PropertyBase &	declareProperty (Gaudi::Property< T > &t)
Gaudi::Details::PropertyBase *	declareProperty (const std::string &name, SG::VarHandleKey &hndl, const std::string &doc, const SG::VarHandleKeyType &)
	Declare a new Gaudi property. More...
Gaudi::Details::PropertyBase *	declareProperty (const std::string &name, SG::VarHandleBase &hndl, const std::string &doc, const SG::VarHandleType &)
	Declare a new Gaudi property. More...
Gaudi::Details::PropertyBase *	declareProperty (const std::string &name, SG::VarHandleKeyArray &hndArr, const std::string &doc, const SG::VarHandleKeyArrayType &)
Gaudi::Details::PropertyBase *	declareProperty (const std::string &name, T &property, const std::string &doc, const SG::NotHandleType &)
	Declare a new Gaudi property. More...
Gaudi::Details::PropertyBase *	declareProperty (const std::string &name, T &property, const std::string &doc="none")
	Declare a new Gaudi property. More...
void	updateVHKA (Gaudi::Details::PropertyBase &)
MsgStream &	msg () const
MsgStream &	msg (const MSG::Level lvl) const
bool	msgLvl (const MSG::Level lvl) const

Static Public Member Functions
static const InterfaceID &	interfaceID ()
	AlgTool interface method. More...

Protected Member Functions
void	renounceArray (SG::VarHandleKeyArray &handlesArray)
	remove all handles from I/O resolution More...
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. More...

Private Types
typedef ServiceHandle< StoreGateSvc >	StoreGateSvc_t

Private Member Functions
MultiComponentState	extrapolateImpl (const EventContext &ctx, Cache &cache, const MultiComponentState &, const Surface &, PropDirection direction, const BoundaryCheck &boundaryCheck, ParticleHypothesis particleHypothesis) const
	Implementation of main extrapolation method. More...
MultiComponentState	extrapolateDirectlyImpl (const EventContext &ctx, const MultiComponentState &, const Surface &, PropDirection direction=anyDirection, const BoundaryCheck &boundaryCheck=true, ParticleHypothesis particleHypothesis=nonInteracting) const
	Implementation of extrapolation without material effects. More...
void	extrapolateToVolumeBoundary (const EventContext &ctx, Cache &cache, const MultiComponentState &, const Layer *, const TrackingVolume &, PropDirection direction, ParticleHypothesis particleHypothesis) const
	Two primary private extrapolation methods. More...
MultiComponentState	extrapolateInsideVolume (const EventContext &ctx, Cache &cache, const MultiComponentState &, const Surface &, const Layer *, const TrackingVolume &, PropDirection direction, const BoundaryCheck &boundaryCheck, ParticleHypothesis particleHypothesis) const
MultiComponentState	extrapolateFromLayerToLayer (const EventContext &ctx, Cache &cache, const MultiComponentState &, const TrackingVolume &, const Layer *startLayer, const Layer *destinationLayer, PropDirection direction, ParticleHypothesis particleHypothesis) const
	Additional private extrapolation methods. More...
MultiComponentState	extrapolateToIntermediateLayer (const EventContext &ctx, Cache &cache, const MultiComponentState &, const Layer &, const TrackingVolume &, PropDirection direction, ParticleHypothesis particleHypothesis, bool perpendicularCheck=true) const
	Single extrapolation step to an intermediate layer. More...
MultiComponentState	extrapolateToDestinationLayer (const EventContext &ctx, Cache &cache, const MultiComponentState &, const Surface &, const Layer &, const Layer *, PropDirection direction, const BoundaryCheck &boundaryCheck, ParticleHypothesis particleHypothesis) const
	Final extrapolation step to a destination layer. More...
void	initialiseNavigation (const EventContext &ctx, Cache &cache, const MultiComponentState &initialState, const Surface &surface, const Layer *&associatedLayer, const TrackingVolume *&currentVolume, const TrackingVolume *&destinationVolume, std::unique_ptr< TrackParameters > &referenceParameters, PropDirection direction) const
	Method to initialise navigation parameters including starting state, layer and volume, and destination volume. More...
Gaudi::Details::PropertyBase &	declareGaudiProperty (Gaudi::Property< T > &hndl, const SG::VarHandleKeyType &)
	specialization for handling Gaudi::Property<SG::VarHandleKey> More...
Gaudi::Details::PropertyBase &	declareGaudiProperty (Gaudi::Property< T > &hndl, const SG::VarHandleKeyArrayType &)
	specialization for handling Gaudi::Property<SG::VarHandleKeyArray> More...
Gaudi::Details::PropertyBase &	declareGaudiProperty (Gaudi::Property< T > &hndl, const SG::VarHandleType &)
	specialization for handling Gaudi::Property<SG::VarHandleBase> More...
Gaudi::Details::PropertyBase &	declareGaudiProperty (Gaudi::Property< T > &t, const SG::NotHandleType &)
	specialization for handling everything that's not a Gaudi::Property<SG::VarHandleKey> or a <SG::VarHandleKeyArray> More...

Private Attributes
ToolHandle< IPropagator >	m_propagator { this, "Propagator", "", "" }
ToolHandle< INavigator >	m_navigator
ToolHandle< IMaterialMixtureConvolution >	m_materialUpdator
	Switch to turn on/off surface based material effects. More...
bool	m_fastField
Trk::MagneticFieldProperties	m_fieldProperties
StoreGateSvc_t	m_evtStore
	Pointer to StoreGate (event store by default) More...
StoreGateSvc_t	m_detStore
	Pointer to StoreGate (detector store by default) More...
std::vector< SG::VarHandleKeyArray * >	m_vhka
bool	m_varHandleArraysDeclared

Detailed Description

Definition at line 45 of file GsfExtrapolator.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

GsfExtrapolator()

Trk::GsfExtrapolator::GsfExtrapolator	(	const std::string &	type,
		const std::string &	name,
		const IInterface *	parent
	)

Constructor with AlgTool parameters.

Definition at line 145 of file GsfExtrapolator.cxx.

  : AthAlgTool(type, name, parent)
  , m_fastField(false)
{
  declareInterface<IMultiStateExtrapolator>(this);
  declareProperty("MagneticFieldProperties", m_fastField);
}

~GsfExtrapolator()

Trk::GsfExtrapolator::~GsfExtrapolator ( )

finaloverridevirtualdefault

Destructor.

Member Function Documentation

declareGaudiProperty() [1/4]

Gaudi::Details::PropertyBase& AthCommonDataStore< AthCommonMsg< AlgTool > >::declareGaudiProperty ( Gaudi::Property< T > &  hndl, const SG::VarHandleKeyArrayType &    )

inlineprivateinherited

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

Definition at line 170 of file AthCommonDataStore.h.

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

declareGaudiProperty() [2/4]

Gaudi::Details::PropertyBase& AthCommonDataStore< AthCommonMsg< AlgTool > >::declareGaudiProperty ( Gaudi::Property< T > &  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());
 
  }

declareGaudiProperty() [3/4]

Gaudi::Details::PropertyBase& AthCommonDataStore< AthCommonMsg< AlgTool > >::declareGaudiProperty ( Gaudi::Property< T > &  hndl, const SG::VarHandleType &    )

inlineprivateinherited

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

Definition at line 184 of file AthCommonDataStore.h.

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

declareGaudiProperty() [4/4]

Gaudi::Details::PropertyBase& AthCommonDataStore< AthCommonMsg< AlgTool > >::declareGaudiProperty ( Gaudi::Property< T > &  t, const SG::NotHandleType &    )

inlineprivateinherited

specialization for handling everything that's not a Gaudi::Property<SG::VarHandleKey> or a <SG::VarHandleKeyArray>

Definition at line 199 of file AthCommonDataStore.h.

  {
    return PBASE::declareProperty(t);
  }

declareProperty() [1/6]

Gaudi::Details::PropertyBase* AthCommonDataStore< AthCommonMsg< AlgTool > >::declareProperty ( const std::string &  name, SG::VarHandleBase &  hndl, const std::string &  doc, const SG::VarHandleType &    )

inlineinherited

Declare a new Gaudi property.

Parameters

name	Name of the property.
hndl	Object holding the property value.
doc	Documentation string for the property.

This is the version for types that derive from SG::VarHandleBase. The property value object is put on the input and output lists as appropriate; then we forward to the base class.

Definition at line 245 of file AthCommonDataStore.h.

  {
    this->declare(hndl.vhKey());
    hndl.vhKey().setOwner(this);
 
    return PBASE::declareProperty(name,hndl,doc);
  }

declareProperty() [2/6]

Gaudi::Details::PropertyBase* AthCommonDataStore< AthCommonMsg< AlgTool > >::declareProperty ( const std::string &  name, SG::VarHandleKey &  hndl, const std::string &  doc, const SG::VarHandleKeyType &    )

inlineinherited

Declare a new Gaudi property.

Parameters

name	Name of the property.
hndl	Object holding the property value.
doc	Documentation string for the property.

This is the version for types that derive from SG::VarHandleKey. The property value object is put on the input and output lists as appropriate; then we forward to the base class.

Definition at line 221 of file AthCommonDataStore.h.

  {
    this->declare(hndl);
    hndl.setOwner(this);
 
    return PBASE::declareProperty(name,hndl,doc);
  }

declareProperty() [3/6]

Gaudi::Details::PropertyBase* AthCommonDataStore< AthCommonMsg< AlgTool > >::declareProperty ( const std::string &  name, SG::VarHandleKeyArray &  hndArr, const std::string &  doc, const SG::VarHandleKeyArrayType &    )

inlineinherited

Definition at line 259 of file AthCommonDataStore.h.

  {
 
    // std::ostringstream ost;
    // ost << Algorithm::name() << " VHKA declareProp: " << name 
    //     << " size: " << hndArr.keys().size() 
    //     << " mode: " << hndArr.mode() 
    //     << "  vhka size: " << m_vhka.size()
    //     << "\n";
    // debug() << ost.str() << endmsg;
 
    hndArr.setOwner(this);
    m_vhka.push_back(&hndArr);
 
    Gaudi::Details::PropertyBase* p =  PBASE::declareProperty(name, hndArr, doc);
    if (p != 0) {
      p->declareUpdateHandler(&AthCommonDataStore<PBASE>::updateVHKA, this);
    } else {
      ATH_MSG_ERROR("unable to call declareProperty on VarHandleKeyArray " 
                    << name);
    }
 
    return p;
 
  }

declareProperty() [4/6]

Gaudi::Details::PropertyBase* AthCommonDataStore< AthCommonMsg< AlgTool > >::declareProperty ( const std::string &  name, T &  property, const std::string &  doc, const SG::NotHandleType &    )

inlineinherited

Declare a new Gaudi property.

Parameters

name	Name of the property.
property	Object holding the property value.
doc	Documentation string for the property.

This is the generic version, for types that do not derive from SG::VarHandleKey. It just forwards to the base class version of declareProperty.

Definition at line 333 of file AthCommonDataStore.h.

  {
    return PBASE::declareProperty(name, property, doc);
  }

declareProperty() [5/6]

Gaudi::Details::PropertyBase* AthCommonDataStore< AthCommonMsg< AlgTool > >::declareProperty ( const std::string &  name, T &  property, const std::string &  doc = "none"  )

inlineinherited

Declare a new Gaudi property.

Parameters

name	Name of the property.
property	Object holding the property value.
doc	Documentation string for the property.

This dispatches to either the generic declareProperty or the one for VarHandle/Key/KeyArray.

Definition at line 352 of file AthCommonDataStore.h.

  {
    typedef typename SG::HandleClassifier<T>::type htype;
    return declareProperty (name, property, doc, htype());
  }

declareProperty() [6/6]

Gaudi::Details::PropertyBase& AthCommonDataStore< AthCommonMsg< AlgTool > >::declareProperty ( Gaudi::Property< T > &  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.

{ return m_detStore; }

evtStore() [1/2]

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.

{ return m_evtStore; }

evtStore() [2/2]

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

inlineinherited

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

Definition at line 90 of file AthCommonDataStore.h.

{ return m_evtStore; }

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

extrapolate()

Trk::MultiComponentState Trk::GsfExtrapolator::extrapolate ( const EventContext &  ctx, Cache &  cache, const MultiComponentState &  multiComponentState, const Surface &  surface, Trk::PropDirection  direction, const BoundaryCheck &  boundaryCheck, Trk::ParticleHypothesis  particleHypothesis = nonInteracting  ) const

finaloverridevirtual

Configured AlgTool extrapolation method (1)

Implements Trk::IMultiStateExtrapolator.

Definition at line 181 of file GsfExtrapolator.cxx.

{
  if (multiComponentState.empty()) {
    return {};
  }
  return extrapolateImpl(ctx,
                         cache,
                         multiComponentState,
                         surface,
                         direction,
                         boundaryCheck,
                         particleHypothesis);
}

extrapolateDirectly()

Trk::MultiComponentState Trk::GsfExtrapolator::extrapolateDirectly ( const EventContext &  ctx, const MultiComponentState &  multiComponentState, const Surface &  surface, Trk::PropDirection  direction, const BoundaryCheck &  boundaryCheck, Trk::ParticleHypothesis  particleHypothesis = nonInteracting  ) const

finaloverridevirtual

Configured AlgTool extrapolation without material effects method (2)

Implements Trk::IMultiStateExtrapolator.

Definition at line 206 of file GsfExtrapolator.cxx.

{
  if (multiComponentState.empty()) {
    return {};
  }
 
  const Trk::TrackingVolume* currentVolume = m_navigator->highestVolume(ctx);
  if (!currentVolume) {
    ATH_MSG_WARNING(
      "Current tracking volume could not be determined... returning {}");
    return {};
  }
  return extrapolateDirectlyImpl(ctx,
                                 multiComponentState,
                                 surface,
                                 direction,
                                 boundaryCheck,
                                 particleHypothesis);
}

extrapolateDirectlyImpl()

Trk::MultiComponentState Trk::GsfExtrapolator::extrapolateDirectlyImpl ( const EventContext &  ctx, const MultiComponentState &  multiComponentState, const Surface &  surface, Trk::PropDirection  direction = anyDirection, const BoundaryCheck &  boundaryCheck = true, Trk::ParticleHypothesis  particleHypothesis = nonInteracting  ) const

private

Implementation of extrapolation without material effects.

Definition at line 452 of file GsfExtrapolator.cxx.

{
  return m_propagator->multiStatePropagate(ctx,
                                           multiComponentState,
                                           surface,
                                           m_fieldProperties,
                                           direction,
                                           boundaryCheck,
                                           particleHypothesis);
}

extrapolateFromLayerToLayer()

Trk::MultiComponentState Trk::GsfExtrapolator::extrapolateFromLayerToLayer ( const EventContext &  ctx, Cache &  cache, const MultiComponentState &  multiComponentState, const TrackingVolume &  trackingVolume, const Layer *  startLayer, const Layer *  destinationLayer, PropDirection  direction, ParticleHypothesis  particleHypothesis  ) const

private

Additional private extrapolation methods.

Layer stepping, stopping at the last layer before destination

Definition at line 728 of file GsfExtrapolator.cxx.

{
 
  const Trk::Layer* currentLayer = startLayer;
  Trk::MultiComponentState currentState{};
 
  const Trk::TrackParameters* combinedState =
    multiComponentState.begin()->params.get();
  Amg::Vector3D currentPosition = combinedState->position();
  Amg::Vector3D currentDirection = direction * combinedState->momentum().unit();
 
  // No need to extrapolate to start layer, find the next one
  const Trk::Layer* nextLayer =
    currentLayer->nextLayer(currentPosition, currentDirection);
 
  using LayerSet = boost::container::flat_set<
    const Trk::Layer*,
    std::less<const Trk::Layer*>,
    boost::container::small_vector<const Trk::Layer*, 8>>;
  LayerSet layersHit;
 
  layersHit.insert(currentLayer);
 
  // Begin while loop over all intermediate layers
  while (nextLayer && nextLayer != destinationLayer) {
    layersHit.insert(nextLayer);
    // Only extrapolate to an intermediate layer if it requires material
    // update. Otherwise step over it
    if (nextLayer->layerMaterialProperties()) {
      currentState = extrapolateToIntermediateLayer(
          ctx,
          cache,
          !currentState.empty() ? currentState : multiComponentState,
          *nextLayer,
          trackingVolume,
          direction,
          particleHypothesis);
    }
 
    if (!currentState.empty()) {
      combinedState = currentState.begin()->params.get();
      currentPosition = combinedState->position();
      currentDirection = direction * combinedState->momentum().unit();
    }
 
    // Find the next layer
    currentLayer = nextLayer;
    nextLayer = currentLayer->nextLayer(currentPosition, currentDirection);
    if (layersHit.find(nextLayer) != layersHit.end()) {
      break;
    }
  }
 
  if (destinationLayer && nextLayer != destinationLayer &&
      !currentState.empty()) {
    currentState.clear();
  }
 
  return currentState;
}

extrapolateImpl()

Trk::MultiComponentState Trk::GsfExtrapolator::extrapolateImpl ( const EventContext &  ctx, Cache &  cache, const MultiComponentState &  multiComponentState, const Surface &  surface, Trk::PropDirection  direction, const BoundaryCheck &  boundaryCheck, Trk::ParticleHypothesis  particleHypothesis  ) const

private

Implementation of main extrapolation method.

Definition at line 243 of file GsfExtrapolator.cxx.

{
 
  // If the extrapolation is to be without material effects simply revert to the
  // extrapolateDirectly method
  if (particleHypothesis == Trk::nonInteracting) {
    return extrapolateDirectlyImpl(ctx,
                                   multiComponentState,
                                   surface,
                                   direction,
                                   boundaryCheck,
                                   particleHypothesis);
  }
 
  const Trk::Layer* associatedLayer = nullptr;
  const Trk::TrackingVolume* startVolume = nullptr;
  const Trk::TrackingVolume* destinationVolume = nullptr;
  std::unique_ptr<Trk::TrackParameters> referenceParameters = nullptr;
 
  initialiseNavigation(ctx,
                       cache,
                       multiComponentState,
                       surface,
                       associatedLayer,
                       startVolume,
                       destinationVolume,
                       referenceParameters,
                       direction);
 
  // Bail to direct extrapolation if the direction cannot be determined
  if (direction == Trk::anyDirection) {
    return extrapolateDirectlyImpl(ctx,
                                   multiComponentState,
                                   surface,
                                   direction,
                                   boundaryCheck,
                                   particleHypothesis);
  }
 
  const Trk::TrackParameters* combinedState =
    multiComponentState.begin()->params.get();
 
  const Trk::MultiComponentState* currentState = &multiComponentState;
 
  /* Define the initial distance between destination and current position.
     Destination should be determined from either
     - reference parameters (prefered if they exist) or
     - destination surface
     */
 
  Amg::Vector3D globalSeparation =
    referenceParameters
      ? referenceParameters->position() - combinedState->position()
      : surface.globalReferencePoint() - combinedState->position();
  double initialDistance = globalSeparation.mag();
  // Clean up memory from combiner. It is no longer needed
  combinedState = nullptr;
 
  /* There are two parts to the extrapolation:
     - Extrapolate from start point to volume boundary
     - Extrapolate from volume boundary to destination surface
     */
  /*
   * Extrapolation to destination volume boundary
   */
  bool foundFinalBoundary(true);
  int fallbackOscillationCounter(0);
  const Trk::TrackingVolume* currentVolume = startVolume;
  const Trk::TrackingVolume* previousVolume = nullptr;
 
  while (currentVolume && currentVolume != destinationVolume) {
    // Extrapolate to volume boundary
    extrapolateToVolumeBoundary(ctx,
                                cache,
                                *currentState,
                                associatedLayer,
                                *currentVolume,
                                direction,
                                particleHypothesis);
 
    // New current state is the state extrapolated to the tracking volume
    // boundary.
    currentState = cache.m_stateAtBoundary;
    // The volume that the extrapolation is about to enter into is called the
    // nextVolume
    const Trk::TrackingVolume* nextVolume = cache.m_trackingVolume;
    // Break the loop if the next tracking volume is the same as the current one
    if (!nextVolume || nextVolume == currentVolume) {
      foundFinalBoundary = false;
      break;
    }
    // Break the loop if an oscillation is detected
    if (previousVolume == nextVolume) {
      ++fallbackOscillationCounter;
    }
    if (fallbackOscillationCounter > 10) {
      foundFinalBoundary = false;
      break;
    }
    // Break the loop if the distance between the surface and the track
    // parameters has increased
    combinedState = currentState->begin()->params.get();
 
    auto parametersAtDestination =
      m_propagator->propagateParameters(ctx,
                                        *combinedState,
                                        surface,
                                        direction,
                                        false,
                                        m_fieldProperties,
                                        particleHypothesis);
    Amg::Vector3D newDestination;
    if (parametersAtDestination) {
      newDestination = parametersAtDestination->position();
      // delete parametersAtDestination;
    } else {
      newDestination = surface.center();
    }
 
    double revisedDistance =
        (cache.m_navigationParameters->position() - newDestination).mag();
 
    double distanceChange = std::abs(revisedDistance - initialDistance);
 
    if (revisedDistance > initialDistance && distanceChange > 0.01) {
      foundFinalBoundary = false;
      break;
    }
 
    combinedState = nullptr;
    // Initialise the oscillation checker
    previousVolume = currentVolume;
    // As the extrapolation is moving into the next volume, the next volume ->
    // current volume
    currentVolume = nextVolume;
    // Associated layer now needs to be reset
    // if(!entryLayerFound)
    associatedLayer = nullptr;
  } // end while loop
 
  // catch failures now
  if (!currentState || (currentVolume != destinationVolume)) {
    currentState = &multiComponentState;
    foundFinalBoundary = false;
  }
 
  if (!foundFinalBoundary) {
    Trk::MultiComponentState bailOutState =
      m_propagator->multiStatePropagate(ctx,
                                        *currentState,
                                        surface,
                                        m_fieldProperties,
                                        Trk::anyDirection,
                                        boundaryCheck,
                                        particleHypothesis);
 
    emptyRecycleBins(cache);
    return bailOutState;
  }
 
  /*
   * Extrapolation from volume boundary to surface
   */
 
  // extrapolate inside destination volume
  Trk::MultiComponentState destinationState =
    extrapolateInsideVolume(ctx,
                            cache,
                            *currentState,
                            surface,
                            associatedLayer,
                            *currentVolume,
                            direction,
                            boundaryCheck,
                            particleHypothesis);
 
  // FALLBACK POINT: Crisis if extrapolation fails here... As per extrapolation
  // to volume boundary, in emergency revert to extrapolateDirectly
 
  // or we failed to reach the target
  if (!destinationState.empty() &&
      &((*(destinationState.begin())).params->associatedSurface()) != &surface) {
    destinationState.clear();
  }
 
  if (destinationState.empty()) {
    destinationState = m_propagator->multiStatePropagate(ctx,
                                                         *currentState,
                                                         surface,
                                                         m_fieldProperties,
                                                         Trk::anyDirection,
                                                         boundaryCheck,
                                                         particleHypothesis);
  }
  emptyRecycleBins(cache);
  return destinationState;
}

extrapolateInsideVolume()

Trk::MultiComponentState Trk::GsfExtrapolator::extrapolateInsideVolume ( const EventContext &  ctx, Cache &  cache, const MultiComponentState &  multiComponentState, const Surface &  surface, const Layer *  layer, const TrackingVolume &  trackingVolume, Trk::PropDirection  direction, const BoundaryCheck &  boundaryCheck, Trk::ParticleHypothesis  particleHypothesis  ) const

private

Definition at line 606 of file GsfExtrapolator.cxx.

{
  //curent state is a plainn ptr to keep track
  const Trk::MultiComponentState* currentState = &multiComponentState;
 
  // Retrieve the destination layer
  // 1. Association
  const Trk::Layer* destinationLayer = surface.associatedLayer();
 
  // 2. Recall and Global Search
  if (!destinationLayer) {
    destinationLayer =
      (&surface == cache.m_recallSurface)
        ? cache.m_recallLayer
        : trackingVolume.associatedLayer(surface.globalReferencePoint());
  }
 
  // Retrieve the current layer
  // Produce a combined state
  const Trk::TrackParameters* combinedState =
    currentState->begin()->params.get();
 
  const Trk::Layer* associatedLayer = layer;
 
  Trk::MultiComponentState updatedState{};
  if (!associatedLayer) {
    // Get entry layer but do not use it as  it should have already be hit if it
    // was desired
    associatedLayer = trackingVolume.associatedLayer(combinedState->position());
    associatedLayer =
      associatedLayer
        ? associatedLayer
        : trackingVolume.nextLayer(combinedState->position(),
                                   direction * combinedState->momentum().unit(),
                                   associatedLayer);
  }
 
  else if (associatedLayer != destinationLayer &&
           trackingVolume.confinedLayers() &&
           associatedLayer->layerMaterialProperties()) {
 
    updatedState = m_materialUpdator->postUpdate(cache.m_materialEffectsCaches,
                                                 *currentState,
                                                 *associatedLayer,
                                                 direction,
                                                 particleHypothesis);
 
    if (!updatedState.empty()) {
      // Refresh the current state pointer
      currentState = &updatedState;
    }
  }
 
  // Reset combined state target
  combinedState = nullptr;
  Trk::MultiComponentState nextState{};
  if (destinationLayer) {
    // If there are intermediate layers then additional extrapolations need to
    // be done
    if (associatedLayer && associatedLayer != destinationLayer) {
      nextState = extrapolateFromLayerToLayer(ctx,
                                              cache,
                                              *currentState,
                                              trackingVolume,
                                              associatedLayer,
                                              destinationLayer,
                                              direction,
                                              particleHypothesis);
 
      // currentState is now the next
      if (!nextState.empty()) {
        // Refresh the current state pointer
        currentState = &nextState;
      }
    }
    // Final extrapolation to destination surface
    Trk::MultiComponentState returnState =
      extrapolateToDestinationLayer(ctx,
                                    cache,
                                    *currentState,
                                    surface,
                                    *destinationLayer,
                                    associatedLayer,
                                    direction,
                                    boundaryCheck,
                                    particleHypothesis);
    // Set the information for the current layer, surface, tracking volume
    setRecallInformation(cache, surface, *destinationLayer, trackingVolume);
    return returnState;
  }
 
  // FALLBACK POINT: If no destination layer is found fall-back and extrapolate
  // directly
  Trk::MultiComponentState returnState =
    m_propagator->multiStatePropagate(ctx,
                                      *currentState,
                                      surface,
                                      m_fieldProperties,
                                      direction,
                                      boundaryCheck,
                                      particleHypothesis);
 
  // No destination layer exists so layer recall method cannot be used and
  // should be reset
  resetRecallInformation(cache);
 
  return returnState;
}

extrapolateToDestinationLayer()

Trk::MultiComponentState Trk::GsfExtrapolator::extrapolateToDestinationLayer ( const EventContext &  ctx, Cache &  cache, const MultiComponentState &  multiComponentState, const Surface &  surface, const Layer &  layer, const Layer *  startLayer, Trk::PropDirection  direction, const BoundaryCheck &  boundaryCheck, Trk::ParticleHypothesis  particleHypothesis  ) const

private

Final extrapolation step to a destination layer.

Definition at line 872 of file GsfExtrapolator.cxx.

{
 
  const Trk::MultiComponentState* initialState = &multiComponentState;
  const Trk::TrackParameters* combinedState = nullptr;
 
  // Propagate over all components
  Trk::MultiComponentState destinationState =
    m_propagator->multiStatePropagate(ctx,
                                      multiComponentState,
                                      surface,
                                      m_fieldProperties,
                                      direction,
                                      boundaryCheck,
                                      particleHypothesis);
 
  // Require a fall-back if the initial state is close to the destination
  // surface then a fall-back solution is required
 
  if (destinationState.empty()) {
    combinedState = initialState->begin()->params.get();
    if (surface.isOnSurface(
          combinedState->position(), true, 0.5 * layer.thickness())) {
      destinationState = m_propagator->multiStatePropagate(ctx,
                                                           *initialState,
                                                           surface,
                                                           m_fieldProperties,
                                                           Trk::anyDirection,
                                                           boundaryCheck,
                                                           particleHypothesis);
    }
    combinedState = nullptr;
    if (destinationState.empty()) {
      return {};
    }
  }
 
  /* ----------------------------------------
     Material effects
     ---------------------------------------- */
 
  Trk::MultiComponentState updatedState{};
  if (startLayer != &layer) {
    updatedState = m_materialUpdator->preUpdate(cache.m_materialEffectsCaches,
                                                destinationState,
                                                layer,
                                                direction,
                                                particleHypothesis);
  }
 
  if (updatedState.empty()) {
    return destinationState;
  }
 
  return updatedState;
}

extrapolateToIntermediateLayer()

Trk::MultiComponentState Trk::GsfExtrapolator::extrapolateToIntermediateLayer ( const EventContext &  ctx, Cache &  cache, const MultiComponentState &  multiComponentState, const Layer &  layer, const TrackingVolume &  trackingVolume, Trk::PropDirection  direction, Trk::ParticleHypothesis  particleHypothesis, bool  perpendicularCheck = true  ) const

private

Single extrapolation step to an intermediate layer.

Definition at line 801 of file GsfExtrapolator.cxx.

{
  const Trk::MultiComponentState* initialState = &multiComponentState;
 
  // Propagate over all components
  Trk::MultiComponentState destinationState =
    m_propagator->multiStatePropagate(ctx,
                                      *initialState,
                                      layer.surfaceRepresentation(),
                                      m_fieldProperties,
                                      direction,
                                      true,
                                      particleHypothesis);
 
  if (destinationState.empty()) {
    return {};
  }
 
  // the layer has been intersected
  // ------------------------------------------------------------------------
  // check for radial direction change
  // ---------------------------------------------------------------------
  int rDirection = radialDirection(multiComponentState, direction);
  int newrDirection = radialDirection(destinationState, direction);
  if (newrDirection != rDirection && doPerpCheck) {
    // it is unfortunate that the cancelling could invalidate the material
    // collection
    // reset the nextParameters if the radial change is not allowed
    //  resetting is ok - since the parameters are in the garbage bin already
    if (!radialDirectionCheck(ctx,
                              *m_propagator,
                              multiComponentState,
                              destinationState,
                              trackingVolume,
                              m_fieldProperties,
                              direction,
                              particleHypothesis)) {
      return {};
    }
  }
 
  /* -------------------------------------
     Material effects
     ------------------------------------- */
 
  Trk::MultiComponentState updatedState =
    m_materialUpdator->update(cache.m_materialEffectsCaches,
                              destinationState,
                              layer,
                              direction,
                              particleHypothesis);
 
  if (updatedState.empty()) {
    return destinationState;
  }
 
  return updatedState;
}

extrapolateToVolumeBoundary()

void Trk::GsfExtrapolator::extrapolateToVolumeBoundary ( const EventContext &  ctx, Cache &  cache, const MultiComponentState &  multiComponentState, const Layer *  layer, const TrackingVolume &  trackingVolume, Trk::PropDirection  direction, Trk::ParticleHypothesis  particleHypothesis  ) const

private

Two primary private extrapolation methods.

• extrapolateToVolumeBoundary : extrapolates to the exit of the destination tracking volume The exit layer surface will be hit in this method.
• extrapolateInsideVolume : extrapolates to the destination surface in the final tracking volume

Definition at line 473 of file GsfExtrapolator.cxx.

{
 
  //We 1st point to the input.
  //As we move on we might change to point to the
  //last element held by
  //cache.m_mcsRecycleBin
  cache.m_stateAtBoundary = &multiComponentState;
 
  const Trk::TrackParameters* combinedState =
      cache.m_stateAtBoundary->begin()->params.get();
  const Trk::Layer* associatedLayer = layer;
 
  if (!associatedLayer) {
    // Get entry layer but do not use it as  it should have already be hit if it
    // was desired
    associatedLayer = trackingVolume.associatedLayer(combinedState->position());
    associatedLayer = associatedLayer
                          ? associatedLayer
                          : trackingVolume.nextLayer(
                                combinedState->position(),
                                direction * combinedState->momentum().unit(),
                                associatedLayer);
  }
  // Only loop over layers if they can be found within the tracking volume
  else if (trackingVolume.confinedLayers() &&
           associatedLayer->layerMaterialProperties()) {
    Trk::MultiComponentState updatedState = m_materialUpdator->postUpdate(
        cache.m_materialEffectsCaches,
        *(cache.m_stateAtBoundary),
        *layer,
        direction,
        particleHypothesis);
 
    if (!updatedState.empty()) {
      addMultiComponentToCache(cache,std::move(updatedState));
    }
  }
 
  // If an associated surface can be found, extrapolation within the tracking
  // volume is mandatory This will take extrapolate to the last layer in the
  // volume
  if (associatedLayer) {
    Trk::MultiComponentState nextState = extrapolateFromLayerToLayer(
        ctx,
        cache,
        *(cache.m_stateAtBoundary),
        trackingVolume,
        associatedLayer,
        nullptr,
        direction,
        particleHypothesis);
    // if we have a next State update the currentState
    if (!nextState.empty()) {
      addMultiComponentToCache(cache,std::move(nextState));
    }
  }
 
  /* =============================================
     Find the boundary surface using the navigator
     ============================================= */
 
  Trk::NavigationCell nextNavigationCell(nullptr, nullptr);
 
  combinedState = cache.m_stateAtBoundary->begin()->params.get();
 
  const Trk::TrackingVolume* nextVolume = nullptr;
  const Trk::TrackParameters* navigationParameters =
    cache.m_navigationParameters
      ? cache.m_navigationParameters.get()
      : combinedState;
 
  nextNavigationCell = m_navigator->nextTrackingVolume(
    ctx, *m_propagator, *navigationParameters, direction, trackingVolume);
 
  nextVolume = nextNavigationCell.nextVolume;
 
  std::unique_ptr<Trk::TrackParameters> nextNavigationParameters =
      std::move(nextNavigationCell.parametersOnBoundary);
 
  if (!nextVolume) {
    // Reset the layer recall
    resetRecallInformation(cache);
  }
 
  if (useBoundaryMaterialUpdate) {
    // Check for two things:
    // 1. If the next volume was found
    // 2. If there is material associated with the boundary layer.
    // If so, apply material effects update.
 
    // Get layer associated with boundary surface.
    const Trk::Layer* layerAtBoundary =
      (nextNavigationCell.parametersOnBoundary)
        ? (nextNavigationCell.parametersOnBoundary->associatedSurface())
            .materialLayer()
        : nullptr;
    Trk::MultiComponentState matUpdatedState{};
    if (nextVolume && layerAtBoundary) {
      if (layerAtBoundary->layerMaterialProperties()) {
        matUpdatedState = m_materialUpdator->postUpdate(
            cache.m_materialEffectsCaches,
            *(cache.m_stateAtBoundary),
            *layerAtBoundary,
            direction,
            particleHypothesis);
      }
    }
 
    // If state has changed due to boundary material, modify state, parameters
    // accordingly.
    if (!matUpdatedState.empty()) {
      addMultiComponentToCache(cache, std::move(matUpdatedState));
      nextNavigationParameters =
          cache.m_stateAtBoundary->begin()->params->uniqueClone();
    }
  }
  // Update the rest of the boundary information in the cache
  cache.m_navigationParameters = std::move(nextNavigationParameters);
  cache.m_trackingVolume = nextVolume;
}

initialiseNavigation()

void Trk::GsfExtrapolator::initialiseNavigation ( const EventContext &  ctx, Cache &  cache, const MultiComponentState &  initialState, const Surface &  surface, const Layer *&  associatedLayer, const TrackingVolume *&  currentVolume, const TrackingVolume *&  destinationVolume, std::unique_ptr< TrackParameters > &  referenceParameters, Trk::PropDirection  direction  ) const

private

Method to initialise navigation parameters including starting state, layer and volume, and destination volume.

Definition at line 942 of file GsfExtrapolator.cxx.

{
 
  // Empty the garbage bin
  emptyRecycleBins(cache);
  const Trk::TrackParameters* combinedState =
    multiComponentState.begin()->params.get();
  /* =============================================
     Look for current volume
     ============================================= */
  // 1. See if the current layer is associated with a tracking volume
 
  const Trk::Surface* associatedSurface = &(combinedState->associatedSurface());
  currentLayer =
    associatedSurface ? associatedSurface->associatedLayer() : currentLayer;
  currentVolume =
    currentLayer ? currentLayer->enclosingTrackingVolume() : currentVolume;
 
  // If the association method failed then try the recall method
 
  if (!currentVolume && associatedSurface == cache.m_recallSurface) {
    currentVolume = cache.m_recallTrackingVolume;
    currentLayer = cache.m_recallLayer;
  }
  // Global search method if this fails
 
  else if (!currentVolume) {
    // If the recall method fails then the cashed information needs to be reset
    resetRecallInformation(cache);
    currentVolume = m_navigator->volume(ctx, combinedState->position());
    currentLayer = (currentVolume)
                     ? currentVolume->associatedLayer(combinedState->position())
                     : nullptr;
  }
  /* =============================================
     Determine the resolved direction
     ============================================= */
  if (direction == Trk::anyDirection) {
    referenceParameters =
      currentVolume
        ? m_propagator->propagateParameters(
            ctx, *combinedState, surface, direction, false, m_fieldProperties)
        : nullptr;
    // These parameters will need to be deleted later. Add to list of garbage to
    // be collected
    if (referenceParameters) {
      Amg::Vector3D surfaceDirection(referenceParameters->position() -
                                     combinedState->position());
      direction = (surfaceDirection.dot(combinedState->momentum()) > 0.)
                    ? Trk::alongMomentum
                    : Trk::oppositeMomentum;
    }
  }
 
  /* =============================================
     Look for destination volume
     ============================================= */
 
  // 1. See if the destination layer is associated with a tracking volume
  destinationVolume = surface.associatedLayer()
                        ? surface.associatedLayer()->enclosingTrackingVolume()
                        : nullptr;
 
  // 2. See if there is a cashed recall surface
  if (!destinationVolume && &surface == cache.m_recallSurface) {
    destinationVolume = cache.m_recallTrackingVolume;
    // If no reference parameters are defined, then determine them
    if (!referenceParameters) {
      referenceParameters =
        currentVolume
          ? m_propagator->propagateParameters(
              ctx, *combinedState, surface, direction, false, m_fieldProperties)
          : nullptr;
    }
    // 3. Global search
  } else {
    // If no reference parameters are defined try to determine them
    if (!referenceParameters) {
      referenceParameters =
        currentVolume
          ? m_propagator->propagateParameters(
              ctx, *combinedState, surface, direction, false, m_fieldProperties)
          : nullptr;
    }
    // Global search of tracking geometry to find the destination volume
    destinationVolume = m_navigator->volume(
        ctx, referenceParameters ? referenceParameters->position()
                                 : surface.globalReferencePoint());
  }
}

initialize()

StatusCode Trk::GsfExtrapolator::initialize ( )

finaloverridevirtual

AlgTool initialise method.

Definition at line 158 of file GsfExtrapolator.cxx.

{
 
  ATH_CHECK(m_propagator.retrieve());
  ATH_CHECK(m_navigator.retrieve());
  ATH_CHECK(m_materialUpdator.retrieve());
 
  m_fieldProperties = m_fastField
                        ? Trk::MagneticFieldProperties(Trk::FastField)
                        : Trk::MagneticFieldProperties(Trk::FullField);
 
  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()

static const InterfaceID& Trk::IMultiStateExtrapolator::interfaceID ( )

inlinestaticinherited

AlgTool interface method.

Definition at line 82 of file IMultiStateExtrapolator.h.

  {
    return IID_IMultiStateExtrapolator;
  };

msg() [1/2]

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

inlineinherited

Definition at line 24 of file AthCommonMsg.h.

                                {
    return this->msgStream();
  }

msg() [2/2]

MsgStream& AthCommonMsg< AlgTool >::msg ( const MSG::Level  lvl ) const

inlineinherited

Definition at line 27 of file AthCommonMsg.h.

                                                  {
    return this->msgStream(lvl);
  }

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

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.

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_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_fastField

bool Trk::GsfExtrapolator::m_fastField

private

Definition at line 190 of file GsfExtrapolator.h.

m_fieldProperties

Trk::MagneticFieldProperties Trk::GsfExtrapolator::m_fieldProperties

private

Definition at line 191 of file GsfExtrapolator.h.

m_materialUpdator

ToolHandle<IMaterialMixtureConvolution> Trk::GsfExtrapolator::m_materialUpdator

private

Initial value:

{
    this,
    "GsfMaterialConvolution",
    "Trk::GsfMaterialMixtureConvolution/GsfMaterialMixtureConvolution",
    ""
  }

Switch to turn on/off surface based material effects.

Definition at line 182 of file GsfExtrapolator.h.

m_navigator

ToolHandle<INavigator> Trk::GsfExtrapolator::m_navigator

private

Initial value:

{ this,
                                      "Navigator",
                                      "Trk::Navigator/Navigator",
                                      "" }

Definition at line 178 of file GsfExtrapolator.h.

m_propagator

ToolHandle<IPropagator> Trk::GsfExtrapolator::m_propagator { this, "Propagator", "", "" }

private

Definition at line 177 of file GsfExtrapolator.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:

• GsfExtrapolator.h
• GsfExtrapolator.cxx