Extended TRT_BaseElement to describe a TRT readout element, this is a planar layer with n ( order of 20 ) straws, in one of the 32 sectors of the TRT barrel. More...

#include <TRT_BarrelElement.h>

Inheritance diagram for InDetDD::TRT_BarrelElement:

Collaboration diagram for InDetDD::TRT_BarrelElement:

Public Types
enum	Type { BARREL , ENDCAP }

Public Member Functions
	TRT_BarrelElement (const GeoVFullPhysVol volume, const TRT_BarrelDescriptor descriptor, bool isPositive, unsigned int modIndex, unsigned int phiIndex, unsigned int strawLayIndex, const TRT_ID idHelper, const TRT_Conditions conditions)
	Constructor:
	TRT_BarrelElement (const TRT_BarrelElement &right)
virtual	~TRT_BarrelElement ()=default
	Destructor:
virtual TRT_BaseElement::Type	type () const override final
	Type information.
const TRT_BarrelDescriptor *	getDescriptor () const
	Returns a pointer to a descriptor, giving common information on module construction:
double	strawXPos (unsigned int i) const
	Get X Position: DEPRECATED.
double	strawYPos (unsigned int i) const
	Get Y Position: DEPRECATED.
double	strawZPos (unsigned int i) const
	Get Z Position: (active center) DEPRECATED.
virtual const double &	strawLength () const override final
	Get the length of the straws (active length):
virtual int	strawDirection () const override final
	StrawDirection.
const TRT_BarrelElement *	nextInPhi () const
	Returns the next-in-phi detector element, or zero if none (forseeing gaps, in other words).
const TRT_BarrelElement *	previousInPhi () const
	Returns the previous-in-phi detector element, or zero if none (forseeing gaps, in other words).
const TRT_BarrelElement *	nextInR () const
	Returns the next-in-R detector element, or zero if none.
const TRT_BarrelElement *	previousInR () const
	Returns the next-in-R detector element, or zero if none.
void	setNextInPhi (const TRT_BarrelElement *element)
	Sets the next-in-phi detector.
void	setPreviousInPhi (const TRT_BarrelElement *element)
	Sets the previous-in-phi detector.
void	setNextInR (const TRT_BarrelElement *element)
	Sets the next-in-r detector.
void	setPreviousInR (const TRT_BarrelElement *element)
	Sets the previous-in-r detector.
const TRT_BarrelCode &	getCode () const
	Doomed (?):
virtual const Trk::SurfaceBounds &	strawBounds () const override final
	Surface bounds.
virtual Identifier	identify () const override final
	identifier of this detector element:
virtual IdentifierHash	identifyHash () const override final
	identifier hash
const GeoTrf::Transform3D &	defTransform () const
	Get Default Transform (of module in barrel, layer in endcap) from GeoModel before alignment corrections.
const HepGeom::Transform3D	getAbsoluteTransform (int straw) const
	This is an alias to strawTransform(int straw)
virtual const Trk::Surface &	surface () const override final
	Element Surface: access to the Surface (straw layer)
virtual const Trk::Surface &	surface (const Identifier &id) const override final
	Straw Surface: access to the surface via identifier.
virtual const Trk::SurfaceBounds &	bounds () const override final
	Straw layer bounds.
virtual const Trk::SurfaceBounds &	bounds (const Identifier &id) const override final
	Straw Surface: access to the bounds via Identifier.
virtual const Amg::Transform3D &	transform () const override final
	Element Surface: Get Transform of element in Tracking frame: Amg.
virtual const Amg::Transform3D &	transform (const Identifier &id) const override final
	Straw Surface: access to the transform of individual straw in Tracking frame: Amg.
virtual const Amg::Vector3D &	center () const override final
	Element Surface: center of a straw layer.
virtual const Amg::Vector3D &	center (const Identifier &id) const override final
	Straw Surface: Center of a straw using Identifier Straw center and straw axis can be obtained by the following: (The straw center is the center of the active region) Amg::Transform3D& transform = element->strawTransform(straw); Amb::Vector3D& center = element->strawCenter(); double r = element->strawCenter()->perp(); double phi = element->strawCenter()->phi(); Amg::Vector3D strawAxis = element->strawTransform(straw)* Vector3D(0,0,1) * strawDirection()
virtual const Amg::Vector3D &	normal () const override final
	Element Surface: normal of a straw layer.
virtual const Amg::Vector3D &	normal (const Identifier &id) const override final
	Normal of a straw.
virtual Trk::DetectorElemType	detectorType () const override final
	TrkDetElementBase interface detectorTyoe.
const std::vector< const Trk::Surface * > &	surfaces () const
	Returns the full list of all detection surfaces associated to this detector element.
const Amg::Transform3D &	strawTransform (unsigned int straw) const
	Straw transform - fast access in array, in Tracking frame: Amg.
const Amg::Transform3D &	strawTransform (int straw) const
	Straw Surface: Local -> global transform of the straw via integer.
const Trk::StraightLineSurface &	strawSurface (int straw) const
	Straw Surface: access to the surface via integer.
const Amg::Vector3D &	strawCenter (int straw) const
	Straw Surface: Local -> global transform of the straw via integer.
Amg::Vector3D	strawAxis (int straw) const
	Straw axis.
unsigned int	nStraws () const
	Number of straws in the element.
void	invalidate ()
	Invalidate cache.
void	updateAllCaches (GeoAlignmentStore *alignStore=nullptr) const
	Update all caches.
const TRT_Conditions *	conditions () const
	Return the TRT_Conditions object associated to this Detector element.
void	createSurfaceCache (Identifier id, GeoAlignmentStore *alignStore=nullptr) const
	create the surface & surface cache for the straw
void	invalidateOther () const
	invalidate action on the cache
std::string	detectorTypeString () const
	Returns a string of the Detector element type.

Static Public Member Functions
static const TRT_BarrelConditions *	getConditionsData ()
	Returns a pointer to conditions data.

Protected Member Functions
const Amg::Vector3D &	center (const Identifier &id, GeoAlignmentStore *alignStore) const

Protected Attributes
Identifier	m_id
IdentifierHash	m_idHash
unsigned int	m_nstraws = 0
const TRT_ID *	m_idHelper =nullptr
const TRT_Conditions *	m_conditions =nullptr
CxxUtils::CachedUniquePtr< Trk::Surface >	m_surface
std::vector< CxxUtils::CachedUniquePtr< Trk::StraightLineSurface > >	m_strawSurfaces {}
std::vector< CxxUtils::CachedUniquePtr< SurfaceCacheBase > >	m_strawSurfacesCache {}
	helper element surface for the cache
CxxUtils::CachedValue< std::vector< const Trk::Surface * > >	m_surfaces
CxxUtils::CachedValue< SurfaceCache >	m_surfaceCache

Private Member Functions
const TRT_BarrelElement &	operator= (const TRT_BarrelElement &right)=delete
	Illegal Operations:
virtual HepGeom::Transform3D	calculateStrawTransform (int straw, GeoAlignmentStore *alignStore) const override
	These transforms are effectively to the local coord system of a straw derived from GeoModel -> hence CLHEP.
HepGeom::Transform3D	calculateLocalStrawTransform (int straw) const
virtual const Trk::Surface &	elementSurface () const override
	return the surface of the element
virtual void	createSurfaceCache (GeoAlignmentStore *alignStore) const override
	create the cache for the element
SurfaceCache	createSurfaceCacheHelper (GeoAlignmentStore *alignStore) const
void	deleteCache ()
	Helper method for cache dealing.

Private Attributes
TRT_BarrelCode	m_code
const TRT_BarrelDescriptor *	m_descriptor
const TRT_BarrelElement *	m_nextInPhi
const TRT_BarrelElement *	m_previousInPhi
const TRT_BarrelElement *	m_nextInR
const TRT_BarrelElement *	m_previousInR

Detailed Description

Extended TRT_BaseElement to describe a TRT readout element, this is a planar layer with n ( order of 20 ) straws, in one of the 32 sectors of the TRT barrel.

The number of straws described by this readout element can be retrieved by nStraws()

Author

: Grant Gorfine

modified & maintained: Nick Styles, Andreas Salzburger

Definition at line 43 of file TRT_BarrelElement.h.

Member Enumeration Documentation

◆ Type

enum InDetDD::TRT_BaseElement::Type

inherited

Enumerator
BARREL
ENDCAP

Definition at line 56 of file TRT_BaseElement.h.

56{BARREL, ENDCAP};

InDetDD::TRT_BaseElement::ENDCAP

@ ENDCAP

Definition TRT_BaseElement.h:56

InDetDD::TRT_BaseElement::BARREL

@ BARREL

Definition TRT_BaseElement.h:56

Constructor & Destructor Documentation

◆ TRT_BarrelElement() [1/2]

InDetDD::TRT_BarrelElement::TRT_BarrelElement	(	const GeoVFullPhysVol *	volume,
		const TRT_BarrelDescriptor *	descriptor,
		bool	isPositive,
		unsigned int	modIndex,
		unsigned int	phiIndex,
		unsigned int	strawLayIndex,
		const TRT_ID *	idHelper,
		const TRT_Conditions *	conditions )

Constructor:

Definition at line 25 of file TRT_BarrelElement.cxx.

  : TRT_BaseElement(volume,
                    idHelper->layer_id((isPositive ? 1 : -1),
                                       phiIndex,
                                       modIndex,
                                       strawLayIndex),
                    idHelper,
                    conditions)
  , m_code(isPositive, modIndex, phiIndex, strawLayIndex)
  , m_descriptor(descriptor)
  , m_nextInPhi(nullptr)
  , m_previousInPhi(nullptr)
  , m_nextInR(nullptr)
  , m_previousInR(nullptr)
 
{
  m_nstraws = m_descriptor->nStraws();
  m_strawSurfaces.resize(m_nstraws);
  m_strawSurfacesCache.resize(m_nstraws);
}

◆ TRT_BarrelElement() [2/2]

InDetDD::TRT_BarrelElement::TRT_BarrelElement ( const TRT_BarrelElement & right )

Definition at line 53 of file TRT_BarrelElement.cxx.

  : TRT_BaseElement(right)
  , m_code(right.m_code)
  , m_descriptor(right.m_descriptor)
  , m_nextInPhi(right.m_nextInPhi)
  , m_previousInPhi(right.m_previousInPhi)
  , m_nextInR(right.m_nextInR)
  , m_previousInR(right.m_previousInR)
{
  m_nstraws = right.m_nstraws;
  m_strawSurfaces.resize(m_nstraws);
  m_strawSurfacesCache.resize(m_nstraws);
}

◆ ~TRT_BarrelElement()

virtual InDetDD::TRT_BarrelElement::~TRT_BarrelElement ( )

virtualdefault

Destructor:

Member Function Documentation

◆ bounds() [1/2]

virtual const Trk::SurfaceBounds & InDetDD::TRT_BaseElement::bounds ( ) const

finaloverridevirtualinherited

Straw layer bounds.

Implements Trk::TrkDetElementBase.

◆ bounds() [2/2]

const Trk::SurfaceBounds & InDetDD::TRT_BaseElement::bounds ( const Identifier & id ) const

finaloverridevirtualinherited

Straw Surface: access to the bounds via Identifier.

Implements Trk::TrkDetElementBase.

Definition at line 72 of file TRT_BaseElement.cxx.

{
  return strawBounds();
}

◆ calculateLocalStrawTransform()

HepGeom::Transform3D InDetDD::TRT_BarrelElement::calculateLocalStrawTransform ( int straw ) const

private

Definition at line 126 of file TRT_BarrelElement.cxx.

{
  const TRTCond::StrawDxContainer* container = conditions()->dxContainer();
  HepGeom::Transform3D rc ;
  if(!container) {
    // std::cout << " TRT_BarrelElement: no local transform found " << std::endl;
  } else {
    // important note: dx1 moves the 'negative' wire endpoint end dx2
    // the 'positive' wire endpoint in the local straw frame. In the
    // global frame, 'dx1' corresponds to the readout side and 'dx2'
    // to the wire joint side for both sides of the barrel.
 
    int bec = getCode().isPosZ() ? +1 : -1 ;
    int layer = getCode().getModuleIndex();
    int phimodule = getCode().getPhiIndex();
    int strawlayer = getCode().getStrawLayerIndex();
    TRTCond::ExpandedIdentifier id = TRTCond::ExpandedIdentifier
      (bec,layer,phimodule,strawlayer,straw,TRTCond::ExpandedIdentifier::STRAW);
    double dx1 = container->getDx1(id);
    double dx2 = container->getDx2(id);
    double ang = (dx2-dx1)/strawLength();
    double dx = (dx2+dx1)/2.;
    rc = HepGeom::TranslateX3D(dx)*HepGeom::RotateY3D(ang) ;
  }
  return rc ;
}

◆ calculateStrawTransform()

HepGeom::Transform3D InDetDD::TRT_BarrelElement::calculateStrawTransform	(	int	straw,
		GeoAlignmentStore *	alignStore ) const

overrideprivatevirtual

These transforms are effectively to the local coord system of a straw derived from GeoModel -> hence CLHEP.

Implements InDetDD::TRT_BaseElement.

Definition at line 99 of file TRT_BarrelElement.cxx.

{
  // NB The tranformation to a straw is reconstructed here precisely as
  // it was ... hopefully... in the factory.  One could eliminate this
  // requirement and make the code a little more robust in this regard but
  // at the cost of doubling the descriptors.  (One descriptor now suffices
  // for both positive and negative endcaps).
  //std::cout << "In calculateStrawTransform" << std::endl;
 
  const GeoXF::Function *f= m_descriptor->getStrawTransform();
  if (f) {
    size_t offsetInto = m_descriptor->getStrawTransformOffset();
    double zPos = -m_descriptor->strawZPos();
    double zAng =  m_code.isPosZ() ? M_PI : 0;
    return  Amg::EigenTransformToCLHEP(getMaterialGeom()->getAbsoluteTransform(alignStore)*((*f)(straw+offsetInto)))
      * HepGeom::RotateY3D(zAng)*HepGeom::TranslateZ3D(zPos)
      * calculateLocalStrawTransform(straw);
 } else {
    std::cout << "calculateStrawTransform:  f is 0 !!!!" << std::endl;
    return {};
  }
}

◆ center() [1/3]

virtual const Amg::Vector3D & InDetDD::TRT_BaseElement::center ( ) const

finaloverridevirtualinherited

Element Surface: center of a straw layer.

Implements Trk::TrkDetElementBase.

◆ center() [2/3]

const Amg::Vector3D & InDetDD::TRT_BaseElement::center ( const Identifier & id ) const

finaloverridevirtualinherited

Straw Surface: Center of a straw using Identifier Straw center and straw axis can be obtained by the following: (The straw center is the center of the active region) Amg::Transform3D& transform = element->strawTransform(straw); Amb::Vector3D& center = element->strawCenter(); double r = element->strawCenter()->perp(); double phi = element->strawCenter()->phi(); Amg::Vector3D strawAxis = element->strawTransform(straw)* Vector3D(0,0,1) * strawDirection()

Implements Trk::TrkDetElementBase.

Definition at line 110 of file TRT_BaseElement.cxx.

{
  int straw = m_idHelper->straw(id);
  if (!m_strawSurfacesCache[straw]) {
    createSurfaceCache(id);
  }
  // forward the transform of the cache
  return m_strawSurfacesCache[straw]->center();
}

◆ center() [3/3]

const Amg::Vector3D & InDetDD::TRT_BaseElement::center	(	const Identifier &	id,
		GeoAlignmentStore *	alignStore ) const

protectedinherited

Definition at line 121 of file TRT_BaseElement.cxx.

{
  int straw = m_idHelper->straw(id);
  if (!m_strawSurfacesCache[straw]) {
    createSurfaceCache(id, alignStore);
  }
  // forward the transform of the cache
  return m_strawSurfacesCache[straw]->center();
}

◆ conditions()

const TRT_Conditions * InDetDD::TRT_BaseElement::conditions ( ) const

inherited

Return the TRT_Conditions object associated to this Detector element.

◆ createSurfaceCache() [1/2]

void InDetDD::TRT_BarrelElement::createSurfaceCache ( GeoAlignmentStore * alignStore ) const

overrideprivatevirtual

create the cache for the element

Implements InDetDD::TRT_BaseElement.

Definition at line 166 of file TRT_BarrelElement.cxx.

{
 // create the surface cache
 if (!m_surfaceCache.isValid()) {
   m_surfaceCache.set(createSurfaceCacheHelper(alignStore));
 }
 // creaete the surface (only if needed, links are still ok even if cache
 // update)
 if (!m_surface) {
   elementSurface();
 }
}

◆ createSurfaceCache() [2/2]

void InDetDD::TRT_BaseElement::createSurfaceCache	(	Identifier	id,
		GeoAlignmentStore *	alignStore = nullptr ) const

inherited

create the surface & surface cache for the straw

Definition at line 172 of file TRT_BaseElement.cxx.

{
  int straw = m_idHelper->straw(id);
 
  // convert neccessary parts to Amg
  if (!m_strawSurfacesCache[straw]) {
    // create the surface cache & fill it
    m_strawSurfacesCache[straw].set(createSurfaceCacheHelper(straw,alignStore));
  }
  // creaete the surface only if needed (the links are still intact)
  if (!m_strawSurfaces[straw]) {
    m_strawSurfaces[straw].set(
      std::make_unique<Trk::StraightLineSurface>(*this, id));
  }
}

◆ createSurfaceCacheHelper()

SurfaceCache InDetDD::TRT_BarrelElement::createSurfaceCacheHelper ( GeoAlignmentStore * alignStore ) const

private

Definition at line 179 of file TRT_BarrelElement.cxx.

                                                                              {
 
  // Calculate the surface from the two end straws.
  int firstStraw = 0;
  int lastStraw = nStraws() - 1;
 
  const Amg::Vector3D& centerFirstStraw =
    center(m_idHelper->straw_id(identify(), firstStraw), alignStore);
  const Amg::Vector3D& centerLastStraw =
    center(m_idHelper->straw_id(identify(), lastStraw), alignStore);
 
  // Calculate center as the average position of the end straws.
  auto center = Amg::Vector3D(0.5 * (centerFirstStraw + centerLastStraw));
 
  Amg::Vector3D phiAxis = centerLastStraw - centerFirstStraw;
  double width = phiAxis.mag();
  phiAxis = phiAxis.normalized();
  double elementWidth =
    width + 2 * m_descriptor->innerTubeRadius(); // Add the straw tube radius
 
  // Get local z-axis. This is roughly in +ve global z direction  (exactly if no
  // misalignment) We could probably use any straw for this but we average the
  // first and last straw and renormalize to a unit vector.
  Amg::Vector3D etaAxis = 0.5 * (strawAxis(firstStraw) + strawAxis(lastStraw));
  etaAxis = etaAxis.normalized();
 
  // Calculate normal. This will point away from the beam line based
  // on the assumption that the straw numbering goes in the direction
  // of increasing phi and the straw axis is in +ve z direction.
  auto normal = Amg::Vector3D(phiAxis.cross(etaAxis)); // phi cross z
 
  // Transform from local to global.
  // local x axis -> phiAxis
  // local y axis -> etaAxis
  // local z axis -> cross product of local x and local y
  // translation -> center
 
  Amg::RotationMatrix3D rotation;
  rotation.col(0) = phiAxis;
  rotation.col(1) = etaAxis;
  rotation.col(2) = normal;
 
  // This constructor takes three points in the two coordinate systems.
  auto transform = Amg::Transform3D(Amg::Translation3D(center) * rotation);
 
  // create the element bounds
  auto elementBounds = std::make_unique<Trk::RectangleBounds>(
    0.5 * elementWidth, 0.5 * strawLength());
 
  return { transform, center, normal, std::move(elementBounds) };
}

◆ defTransform()

const GeoTrf::Transform3D & InDetDD::TRT_BaseElement::defTransform ( ) const

inherited

Get Default Transform (of module in barrel, layer in endcap) from GeoModel before alignment corrections.

◆ deleteCache()

void InDetDD::TRT_BaseElement::deleteCache ( )

privateinherited

Helper method for cache dealing.

Definition at line 211 of file TRT_BaseElement.cxx.

{
  // for all straws
  for (auto & i : m_strawSurfacesCache) {
    i.release();
  }
}

◆ detectorType()

virtual Trk::DetectorElemType InDetDD::TRT_BaseElement::detectorType ( ) const

finaloverridevirtualinherited

TrkDetElementBase interface detectorTyoe.

Implements Trk::TrkDetElementBase.

◆ detectorTypeString()

std::string Trk::TrkDetElementBase::detectorTypeString ( ) const

inherited

Returns a string of the Detector element type.

Definition at line 10 of file TrkDetElementBase.cxx.

                                                         {
  auto type = detectorType();
  if (type == Trk::DetectorElemType::SolidState)
    return "SolidState";
  else if (type == Trk::DetectorElemType::Silicon)
    return "Silicon";
  else if (type == Trk::DetectorElemType::TRT)
    return "TRT";
  else if (type == Trk::DetectorElemType::Csc)
    return "Csc";
  else if (type == Trk::DetectorElemType::Mdt)
    return "Mdt";
  else if (type == Trk::DetectorElemType::Rpc)
    return "Rpc";
  else if (type == Trk::DetectorElemType::Tgc)
    return "Tgc";
  else if (type == Trk::DetectorElemType::sTgc)
    return "sTgc";
  else if (type == Trk::DetectorElemType::MM)
    return "Mm";
  return "Unknown";
}

◆ elementSurface()

const Trk::Surface & InDetDD::TRT_BarrelElement::elementSurface ( ) const

overrideprivatevirtual

return the surface of the element

Implements InDetDD::TRT_BaseElement.

Definition at line 158 of file TRT_BarrelElement.cxx.

{
  if (not m_surface) {
    m_surface.set(std::make_unique<Trk::PlaneSurface>(*this));
  }
  return *m_surface;
}

◆ getAbsoluteTransform()

const HepGeom::Transform3D InDetDD::TRT_BaseElement::getAbsoluteTransform ( int straw ) const

inherited

This is an alias to strawTransform(int straw)

Definition at line 42 of file TRT_BaseElement.cxx.

{
  return Amg::EigenTransformToCLHEP(strawTransform(straw));
}

◆ getCode()

const TRT_BarrelCode & InDetDD::TRT_BarrelElement::getCode ( ) const

Doomed (?):

◆ getConditionsData()

const TRT_BarrelConditions * InDetDD::TRT_BarrelElement::getConditionsData ( )

static

Returns a pointer to conditions data.

This includes information on dead and noisy wires, as well as wire sags.

Definition at line 67 of file TRT_BarrelElement.cxx.

{
  return nullptr;
}

◆ getDescriptor()

const TRT_BarrelDescriptor * InDetDD::TRT_BarrelElement::getDescriptor ( ) const

Returns a pointer to a descriptor, giving common information on module construction:

Definition at line 72 of file TRT_BarrelElement.cxx.

{
  return m_descriptor;
}

◆ identify()

virtual Identifier InDetDD::TRT_BaseElement::identify ( ) const

finaloverridevirtualinherited

identifier of this detector element:

Implements Trk::TrkDetElementBase.

◆ identifyHash()

virtual IdentifierHash InDetDD::TRT_BaseElement::identifyHash ( ) const

finaloverridevirtualinherited

identifier hash

Implements Trk::TrkDetElementBase.

◆ invalidate()

void InDetDD::TRT_BaseElement::invalidate ( )

inherited

Invalidate cache.

Definition at line 201 of file TRT_BaseElement.cxx.

{
  // Invalidate the caches
  // Call and barrel or endcap specific invalidation
  invalidateOther();
  // Its enough to delete and zero the caches.
  deleteCache();
}

◆ invalidateOther()

void InDetDD::TRT_BaseElement::invalidateOther ( ) const

inlineinherited

invalidate action on the cache

Definition at line 188 of file TRT_BaseElement.h.

188{};

◆ nextInPhi()

const TRT_BarrelElement * InDetDD::TRT_BarrelElement::nextInPhi ( ) const

Returns the next-in-phi detector element, or zero if none (forseeing gaps, in other words).

◆ nextInR()

const TRT_BarrelElement * InDetDD::TRT_BarrelElement::nextInR ( ) const

Returns the next-in-R detector element, or zero if none.

◆ normal() [1/2]

virtual const Amg::Vector3D & InDetDD::TRT_BaseElement::normal ( ) const

finaloverridevirtualinherited

Element Surface: normal of a straw layer.

Implements Trk::TrkDetElementBase.

◆ normal() [2/2]

const Amg::Vector3D & InDetDD::TRT_BaseElement::normal ( const Identifier & id ) const

finaloverridevirtualinherited

Normal of a straw.

(Not very meaningful).

Implements Trk::TrkDetElementBase.

Definition at line 100 of file TRT_BaseElement.cxx.

{
  // Not sure if the normal of the straw is ever used.
  // nor is there a well defined normal.
  // This wont be corrected for alignments.
  // Just return the element normal
  return normal();
}

◆ nStraws()

unsigned int InDetDD::TRT_BaseElement::nStraws ( ) const

inherited

Number of straws in the element.

◆ operator=()

const TRT_BarrelElement & InDetDD::TRT_BarrelElement::operator= ( const TRT_BarrelElement & right )

privatedelete

Illegal Operations:

◆ previousInPhi()

const TRT_BarrelElement * InDetDD::TRT_BarrelElement::previousInPhi ( ) const

Returns the previous-in-phi detector element, or zero if none (forseeing gaps, in other words).

◆ previousInR()

const TRT_BarrelElement * InDetDD::TRT_BarrelElement::previousInR ( ) const

Returns the next-in-R detector element, or zero if none.

◆ setNextInPhi()

void InDetDD::TRT_BarrelElement::setNextInPhi ( const TRT_BarrelElement * element )

Sets the next-in-phi detector.

Definition at line 77 of file TRT_BarrelElement.cxx.

{
  m_nextInPhi=element;
}

◆ setNextInR()

void InDetDD::TRT_BarrelElement::setNextInR ( const TRT_BarrelElement * element )

Sets the next-in-r detector.

Definition at line 87 of file TRT_BarrelElement.cxx.

{
  m_nextInR=element;
}

◆ setPreviousInPhi()

void InDetDD::TRT_BarrelElement::setPreviousInPhi ( const TRT_BarrelElement * element )

Sets the previous-in-phi detector.

Definition at line 82 of file TRT_BarrelElement.cxx.

{
  m_previousInPhi=element;
}

◆ setPreviousInR()

void InDetDD::TRT_BarrelElement::setPreviousInR ( const TRT_BarrelElement * element )

Sets the previous-in-r detector.

Definition at line 92 of file TRT_BarrelElement.cxx.

{
  m_previousInR=element;
}

◆ strawAxis()

Amg::Vector3D InDetDD::TRT_BaseElement::strawAxis ( int straw ) const

inherited

Straw axis.

Always in direction of increasing eta. +ve z direction in barrel (for both +ve and -ve half) Away from beam pipe in -ve z endcap, Towards beam pipe in +ve endcap.

Definition at line 165 of file TRT_BaseElement.cxx.

{
  return (strawTransform(straw).linear() * Amg::Vector3D::UnitZ() *
          strawDirection());
}

◆ strawBounds()

const Trk::SurfaceBounds & InDetDD::TRT_BarrelElement::strawBounds ( ) const

finaloverridevirtual

Surface bounds.

Implements InDetDD::TRT_BaseElement.

Definition at line 153 of file TRT_BarrelElement.cxx.

{
  return m_descriptor->strawBounds();
}

◆ strawCenter()

const Amg::Vector3D & InDetDD::TRT_BaseElement::strawCenter ( int straw ) const

inherited

Straw Surface: Local -> global transform of the straw via integer.

Definition at line 154 of file TRT_BaseElement.cxx.

{
  if (!m_strawSurfacesCache[straw]) {
    Identifier id = m_idHelper->straw_id(identify(), straw);
    createSurfaceCache(id);
  }
  // forward the transform of the cache
  return m_strawSurfacesCache[straw]->center();
}

◆ strawDirection()

int InDetDD::TRT_BarrelElement::strawDirection ( ) const

finaloverridevirtual

StrawDirection.

+1 if axis is in same direction as local coordinate, -1 otherwise.

Implements InDetDD::TRT_BaseElement.

Definition at line 231 of file TRT_BarrelElement.cxx.

{
  // Return +1 if the straw local axis is in the same direction as the z axis, -1 otherwise.
  // The straw axis by convention goes in the direction away from the readout.
  // So for -ve endcap this is the positive z direction (we return +1) and in the
  // +ve endcap its in the -ve z direction (we return -1).
  //
  return !(m_code.isPosZ()) ? +1 : -1;
}

◆ strawLength()

virtual const double & InDetDD::TRT_BarrelElement::strawLength ( ) const

finaloverridevirtual

Get the length of the straws (active length):

Implements InDetDD::TRT_BaseElement.

◆ strawSurface()

const Trk::StraightLineSurface & InDetDD::TRT_BaseElement::strawSurface ( int straw ) const

inherited

Straw Surface: access to the surface via integer.

Definition at line 132 of file TRT_BaseElement.cxx.

{
  if (!m_strawSurfaces[straw]) {
    // get the straw identifier to the given straw number and element identifier
    Identifier id = m_idHelper->straw_id(identify(), straw);
    createSurfaceCache(id);
  }
  return *(m_strawSurfaces[straw].get());
}

◆ strawTransform() [1/2]

const Amg::Transform3D & InDetDD::TRT_BaseElement::strawTransform ( int straw ) const

inherited

Straw Surface: Local -> global transform of the straw via integer.

Definition at line 143 of file TRT_BaseElement.cxx.

{
  if (!m_strawSurfacesCache[straw]) {
    Identifier id = m_idHelper->straw_id(identify(), straw);
    createSurfaceCache(id);
  }
  // forward the transform of the cache
  return m_strawSurfacesCache[straw]->transform();
}

◆ strawTransform() [2/2]

const Amg::Transform3D & InDetDD::TRT_BaseElement::strawTransform ( unsigned int straw ) const

inherited

Straw transform - fast access in array, in Tracking frame: Amg.

Straw Surface: access to the transform of individual straw in Tracking frame: Amg

Definition at line 89 of file TRT_BaseElement.cxx.

{
  if (!m_strawSurfacesCache[straw]) {
    Identifier id = m_idHelper->straw_id(identify(), straw);
    createSurfaceCache(id);
  }
  // forward the transform of the cache
  return m_strawSurfacesCache[straw]->transform();
}

◆ strawXPos()

double InDetDD::TRT_BarrelElement::strawXPos ( unsigned int i ) const

inline

Get X Position: DEPRECATED.

Please use starwCenter(i).x()

◆ strawYPos()

double InDetDD::TRT_BarrelElement::strawYPos ( unsigned int i ) const

inline

Get Y Position: DEPRECATED.

Please use starwCenter(i).y()

◆ strawZPos()

double InDetDD::TRT_BarrelElement::strawZPos ( unsigned int i ) const

inline

Get Z Position: (active center) DEPRECATED.

Please use starwCenter(i).z()

◆ surface() [1/2]

virtual const Trk::Surface & InDetDD::TRT_BaseElement::surface ( ) const

finaloverridevirtualinherited

Element Surface: access to the Surface (straw layer)

Implements Trk::TrkDetElementBase.

◆ surface() [2/2]

const Trk::Surface & InDetDD::TRT_BaseElement::surface ( const Identifier & id ) const

finaloverridevirtualinherited

Straw Surface: access to the surface via identifier.

Implements Trk::TrkDetElementBase.

Definition at line 48 of file TRT_BaseElement.cxx.

{
  int straw = m_idHelper->straw(id);
  if (!m_strawSurfaces[straw]) {
    createSurfaceCache(id);
  }
  return *(m_strawSurfaces[straw]);
}

◆ surfaces()

const std::vector< const Trk::Surface * > & InDetDD::TRT_BaseElement::surfaces ( ) const

inherited

Returns the full list of all detection surfaces associated to this detector element.

Definition at line 58 of file TRT_BaseElement.cxx.

{
  if (!m_surfaces.isValid()) {
    std::vector<const Trk::Surface*> tmp_surfaces;
    tmp_surfaces.reserve(nStraws());
    for (unsigned is = 0; is < nStraws(); ++is) {
      tmp_surfaces.push_back(&strawSurface(is));
    }
    m_surfaces.set(tmp_surfaces);
  }
  return *(m_surfaces.ptr());
}

◆ transform() [1/2]

virtual const Amg::Transform3D & InDetDD::TRT_BaseElement::transform ( ) const

finaloverridevirtualinherited

Element Surface: Get Transform of element in Tracking frame: Amg.

Implements Trk::TrkDetElementBase.

◆ transform() [2/2]

const Amg::Transform3D & InDetDD::TRT_BaseElement::transform ( const Identifier & id ) const

finaloverridevirtualinherited

Straw Surface: access to the transform of individual straw in Tracking frame: Amg.

Implements Trk::TrkDetElementBase.

Definition at line 78 of file TRT_BaseElement.cxx.

{
  int straw = m_idHelper->straw(id);
  if (!m_strawSurfacesCache[straw]) {
    createSurfaceCache(id);
  }
  // forward the transform of the cache
  return m_strawSurfacesCache[straw]->transform();
}

◆ type()

virtual TRT_BaseElement::Type InDetDD::TRT_BarrelElement::type ( ) const

finaloverridevirtual

Type information.

Implements InDetDD::TRT_BaseElement.

◆ updateAllCaches()

void InDetDD::TRT_BaseElement::updateAllCaches ( GeoAlignmentStore * alignStore = nullptr ) const

inherited

Update all caches.

Definition at line 220 of file TRT_BaseElement.cxx.

{
  // Strawlayer caches
  if (!m_surfaceCache.isValid()){
    createSurfaceCache(alignStore);
  }
  // Loop over all straws and request items that get cached.
  for (unsigned int iStraw = 0; iStraw < nStraws(); iStraw++) {
    Identifier strawId = m_idHelper->straw_id(identify(), iStraw);
    createSurfaceCache(strawId,alignStore);
  }
}

Definition at line 211 of file TRT_BaseElement.h.

211{};

◆ m_strawSurfacesCache

std::vector<CxxUtils::CachedUniquePtr<SurfaceCacheBase> > InDetDD::TRT_BaseElement::m_strawSurfacesCache {}

protectedinherited

helper element surface for the cache

Definition at line 212 of file TRT_BaseElement.h.

212{};

◆ m_surface

CxxUtils::CachedUniquePtr<Trk::Surface> InDetDD::TRT_BaseElement::m_surface

protectedinherited

Definition at line 209 of file TRT_BaseElement.h.

◆ m_surfaceCache

CxxUtils::CachedValue<SurfaceCache> InDetDD::TRT_BaseElement::m_surfaceCache

protectedinherited

Definition at line 215 of file TRT_BaseElement.h.

◆ m_surfaces

CxxUtils::CachedValue<std::vector<const Trk::Surface*> > InDetDD::TRT_BaseElement::m_surfaces

protectedinherited

Definition at line 214 of file TRT_BaseElement.h.

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

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Protected Attributes

Private Member Functions

Private Attributes

Detailed Description

Member Enumeration Documentation

◆ Type

Constructor & Destructor Documentation

◆ TRT_BarrelElement() [1/2]

◆ TRT_BarrelElement() [2/2]

◆ ~TRT_BarrelElement()

Member Function Documentation

◆ bounds() [1/2]

◆ bounds() [2/2]

◆ calculateLocalStrawTransform()

◆ calculateStrawTransform()

◆ center() [1/3]

◆ center() [2/3]

◆ center() [3/3]

◆ conditions()

◆ createSurfaceCache() [1/2]

◆ createSurfaceCache() [2/2]

◆ createSurfaceCacheHelper()

◆ defTransform()

◆ deleteCache()

◆ detectorType()

◆ detectorTypeString()

◆ elementSurface()

◆ getAbsoluteTransform()

◆ getCode()

◆ getConditionsData()

◆ getDescriptor()

◆ identify()

◆ identifyHash()

◆ invalidate()

◆ invalidateOther()

◆ nextInPhi()

◆ nextInR()

◆ normal() [1/2]

◆ normal() [2/2]

◆ nStraws()

◆ operator=()

◆ previousInPhi()

◆ previousInR()

◆ setNextInPhi()

◆ setNextInR()

◆ setPreviousInPhi()

◆ setPreviousInR()

◆ strawAxis()

◆ strawBounds()

◆ strawCenter()

◆ strawDirection()

◆ strawLength()

◆ strawSurface()

◆ strawTransform() [1/2]

◆ strawTransform() [2/2]

◆ strawXPos()

◆ strawYPos()

◆ strawZPos()

◆ surface() [1/2]

◆ surface() [2/2]

◆ surfaces()

◆ transform() [1/2]

◆ transform() [2/2]

◆ type()

◆ updateAllCaches()

Member Data Documentation

◆ m_code

◆ m_conditions

◆ m_descriptor

◆ m_id

◆ m_idHash

◆ m_idHelper

◆ m_nextInPhi

◆ m_nextInR

◆ m_nstraws

◆ m_previousInPhi