InDetDD::TRT_EndcapElement Class Reference

#include <TRT_EndcapElement.h>

Inheritance diagram for InDetDD::TRT_EndcapElement:

Collaboration diagram for InDetDD::TRT_EndcapElement:

Public Types
enum	Type { BARREL, ENDCAP }

Public Member Functions
	TRT_EndcapElement (const GeoVFullPhysVol *volume, const TRT_EndcapDescriptor *descriptor, bool isPositive, unsigned int wheelIndex, unsigned int strawLayIndex, unsigned int phiIndex, const TRT_ID *idHelper, const TRT_Conditions *conditions)
	Constructor. More...
	TRT_EndcapElement (const TRT_EndcapElement &right)
virtual	~TRT_EndcapElement ()
	Destructor: More...
virtual TRT_BaseElement::Type	type () const override final
	Type information: More...
virtual const double &	strawLength () const override
	Active straw length. More...
virtual int	strawDirection () const override final
	StrawDirection. More...
const TRT_EndcapDescriptor *	getDescriptor () const
	Returns a pointer to a descriptor, giving common information on module construction. More...
const TRT_EndcapElement *	nextInZ () const
	Next in Z: More...
const TRT_EndcapElement *	previousInZ () const
	Prev in Z: More...
void	setNextInZ (const TRT_EndcapElement *element)
	Set Next in Z. More...
void	setPreviousInZ (const TRT_EndcapElement *element)
	Set Previous in Z. More...
const TRT_EndcapCode &	getCode () const
	Doomed (??) More...
virtual const Trk::SurfaceBounds &	strawBounds () const override final
	the straw bounds More...
virtual Identifier	identify () const override final
	identifier of this detector element: More...
virtual IdentifierHash	identifyHash () const override final
	identifier hash More...
const GeoTrf::Transform3D &	defTransform () const
	Get Default Transform (of module in barrel, layer in endcap) from GeoModel before alignment corrections. More...
const HepGeom::Transform3D	getAbsoluteTransform (int straw) const
	This is an alias to strawTransform(int straw) More...
virtual const Trk::Surface &	surface () const override final
	Element Surface: access to the Surface (straw layer) More...
virtual const Trk::Surface &	surface (const Identifier &id) const override final
	Straw Surface: access to the surface via identifier. More...
virtual const Trk::SurfaceBounds &	bounds () const override final
	Straw layer bounds. More...
virtual const Trk::SurfaceBounds &	bounds (const Identifier &id) const override final
	Straw Surface: access to the bounds via Identifier. More...
virtual const Amg::Transform3D &	transform () const override final
	Element Surface: Get Transform of element in Tracking frame: Amg. More...
virtual const Amg::Transform3D &	transform (const Identifier &id) const override final
	Straw Surface: access to the transform of individual straw in Tracking frame: Amg. More...
virtual const Amg::Vector3D &	center () const override final
	Element Surface: center of a straw layer. More...
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() More...
virtual const Amg::Vector3D &	normal () const override final
	Element Surface: normal of a straw layer. More...
virtual const Amg::Vector3D &	normal (const Identifier &id) const override final
	Normal of a straw. More...
virtual Trk::DetectorElemType	detectorType () const override final
	TrkDetElementBase interface detectorTyoe. More...
const std::vector< const Trk::Surface * > &	surfaces () const
	Returns the full list of all detection surfaces associated to this detector element. More...
const Amg::Transform3D &	strawTransform (unsigned int straw) const
	Straw transform - fast access in array, in Tracking frame: Amg. More...
const Amg::Transform3D &	strawTransform (int straw) const
	Straw Surface: Local -> global transform of the straw via integer. More...
const Trk::StraightLineSurface &	strawSurface (int straw) const
	Straw Surface: access to the surface via integer. More...
const Amg::Vector3D &	strawCenter (int straw) const
	Straw Surface: Local -> global transform of the straw via integer. More...
Amg::Vector3D	strawAxis (int straw) const
	Straw axis. More...
unsigned int	nStraws () const
	Number of straws in the element. More...
void	invalidate ()
	Invalidate cache. More...
void	updateAllCaches (GeoAlignmentStore *alignStore=nullptr) const
	Update all caches. More...
const TRT_Conditions *	conditions () const
	Return the TRT_Conditions object associated to this Detector element. More...
void	createSurfaceCache (Identifier id, GeoAlignmentStore *alignStore=nullptr) const
	create the surface & surface cache for the straw More...
void	invalidateOther () const
	invalidate action on the cache More...
std::string	detectorTypeString () const
	Returns a string of the Detector element type. More...

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

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 More...
CxxUtils::CachedValue< std::vector< const Trk::Surface * > >	m_surfaces
CxxUtils::CachedValue< SurfaceCache >	m_surfaceCache

Private Member Functions
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. More...
HepGeom::Transform3D	calculateLocalStrawTransform (int straw) const
virtual const Trk::Surface &	elementSurface () const override
	return the surface of the element More...
virtual void	createSurfaceCache (GeoAlignmentStore *alignStore) const override
	create the cache for the element More...
SurfaceCache	createSurfaceCacheHelper (GeoAlignmentStore *alignStore) const
void	createSurfaceCache (Identifier id) const
	create the cache for the straw of identifier id More...
const TRT_EndcapElement &	operator= (const TRT_EndcapElement &right)=delete
void	deleteCache ()
	Helper method for cache dealing. More...

Private Attributes
TRT_EndcapCode	m_code
const TRT_EndcapDescriptor *	m_descriptor
const TRT_EndcapElement *	m_nextInZ
const TRT_EndcapElement *	m_previousInZ

Detailed Description

Extended class of a TRT_BaseElement to describe a readout elment in the endcap. It secifies the strawTransfrom methods by getting the information from GeoModel

The readout element in the EC is a wheel with straws radially placed on it.

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_EndcapElement.h.

Member Enumeration Documentation

Type

enum InDetDD::TRT_BaseElement::Type

inherited

Enumerator
BARREL
ENDCAP

Definition at line 56 of file TRT_BaseElement.h.

{BARREL, ENDCAP};

Constructor & Destructor Documentation

TRT_EndcapElement() [1/2]

InDetDD::TRT_EndcapElement::TRT_EndcapElement	(	const GeoVFullPhysVol *	volume,
		const TRT_EndcapDescriptor *	descriptor,
		bool	isPositive,
		unsigned int	wheelIndex,
		unsigned int	strawLayIndex,
		unsigned int	phiIndex,
		const TRT_ID *	idHelper,
		const TRT_Conditions *	conditions
	)

Constructor.

Definition at line 27 of file TRT_EndcapElement.cxx.

  :
 
  TRT_BaseElement(volume,
                  idHelper->layer_id((isPositive ? 2 : -2),
                                     phiIndex,
                                     wheelIndex,
                                     strawLayIndex),
                  idHelper,
                  conditions)
  , m_code(isPositive, wheelIndex, strawLayIndex, phiIndex)
  , m_descriptor(descriptor)
  , m_nextInZ(nullptr)
  , m_previousInZ(nullptr)
{
  m_nstraws = m_descriptor->nStraws();
  m_strawSurfaces.resize(m_nstraws);
  m_strawSurfacesCache.resize(m_nstraws);
}

TRT_EndcapElement() [2/2]

InDetDD::TRT_EndcapElement::TRT_EndcapElement

(

const TRT_EndcapElement &

right

)

Definition at line 54 of file TRT_EndcapElement.cxx.

  : TRT_BaseElement(right)
  , m_code(right.m_code)
  , m_descriptor(right.m_descriptor)
  , m_nextInZ(right.m_nextInZ)
  , m_previousInZ(right.m_previousInZ)
{
  m_nstraws = right.m_nstraws;
  m_strawSurfaces.resize(m_nstraws);
  m_strawSurfacesCache.resize(m_nstraws);
}

~TRT_EndcapElement()

InDetDD::TRT_EndcapElement::~TRT_EndcapElement ( )

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_EndcapElement::calculateLocalStrawTransform ( int  straw ) const

private

Definition at line 144 of file TRT_EndcapElement.cxx.

{
  const TRTCond::StrawDxContainer* container = conditions()->dxContainer();
  HepGeom::Transform3D rc;
  if (container) {
 
    // 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 side closest the beampipe.
 
    int bec = getCode().isPosZ() ? +2 : -2;
    int wheel = getCode().getWheelIndex();
    int phimodule = getCode().getPhiIndex();
    int strawlayer = getCode().getStrawLayerIndex();
    TRTCond::ExpandedIdentifier id =
      TRTCond::ExpandedIdentifier(bec,
                                  wheel,
                                  phimodule,
                                  strawlayer,
                                  straw,
                                  TRTCond::ExpandedIdentifier::STRAW);
 
    double dx1 = container->getDx1(id);
    double dx2 = container->getDx2(id);
    double ang = (dx2 - dx1) / strawLength();
    double dy = -1 * (dx2 + dx1) / 2.;
 
    // In the local straw frame:
    //   - the z-axis is along the straw and points toward the beampipe
    //   - the x-axis is along global-z and away from the interaction point
    //          (locX = globZ A-side / locX = -1 *gobZ C-side)
    //   - the y-axis is along global phi_hat direction determined by the
    //   other 2.
    //          (clockwise C-side, counter clockwise A-Side)
    rc = HepGeom::TranslateY3D(dy) * HepGeom::RotateX3D(ang);
  }
  return rc;
}

calculateStrawTransform()

HepGeom::Transform3D InDetDD::TRT_EndcapElement::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 100 of file TRT_EndcapElement.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).
  const GeoXF::Function* f = m_descriptor->getStrawTransform();
 
  if (f) {
    int istraw = m_code.isPosZ() ? straw : m_descriptor->nStraws() - 1 - straw;
 
    size_t offsetInto = m_descriptor->getStrawTransformOffset();
 
    return Amg::EigenTransformToCLHEP(
             getMaterialGeom()->getAbsoluteTransform(alignStore) *
             ((*f)(istraw + offsetInto))) *
           calculateLocalStrawTransform(straw);
 
  } else {
 
    // Will not work properly with alignments.
    std::cout << "ALTERNATIVE METHOD" << std::endl;
 
    double phi = m_descriptor->startPhi() + m_descriptor->strawPitch() * straw;
    double r = m_descriptor->innerRadius() + 0.5 * m_descriptor->strawLength();
    CLHEP::Hep3Vector pos(
      r * cos(phi),
      r * sin(phi),
      (Amg::EigenTransformToCLHEP(getMaterialGeom()->getAbsoluteTransform(alignStore)) *
       HepGeom::Point3D<double>())
        .z());
    CLHEP::HepRotation rot;
    // Axis (in local (0,0,1)) points towards beam axis.
    rot.rotateY(-0.5 * M_PI); // Make it point along -ve X.
    rot.rotateZ(phi);
    return HepGeom::Transform3D(rot, pos);
  }
}

center() [1/2]

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

finaloverridevirtualinherited

Element Surface: center of a straw layer.

Implements Trk::TrkDetElementBase.

center() [2/2]

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();
}

conditions()

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

inherited

Return the TRT_Conditions object associated to this Detector element.

createSurfaceCache() [1/3]

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

overrideprivatevirtual

create the cache for the element

Implements InDetDD::TRT_BaseElement.

Definition at line 199 of file TRT_EndcapElement.cxx.

{
 if (!m_surfaceCache.isValid()) {
    m_surfaceCache.set(createSurfaceCacheHelper(alignStore));
  }
  // create the surface if needed
  if (!m_surface) {
    elementSurface();
  }
}

createSurfaceCache() [2/3]

void InDetDD::TRT_EndcapElement::createSurfaceCache ( Identifier  id ) const

private

create the cache for the straw of identifier id

createSurfaceCache() [3/3]

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

inherited

create the surface & surface cache for the straw

Definition at line 161 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_EndcapElement::createSurfaceCacheHelper ( GeoAlignmentStore *  alignStore ) const

private

Definition at line 211 of file TRT_EndcapElement.cxx.

{
  // Calculate the surface
  double phiCenter = m_descriptor->startPhi() +
                     m_descriptor->strawPitch() * 0.5 * (nStraws() - 1);
  double phiHalfWidth = 0.5 * m_descriptor->strawPitch() * nStraws();
  double rMin = m_descriptor->innerRadius();
  double rMax = rMin + m_descriptor->strawLength();
 
  // The transform of the endcap is a translation in z for no
  // misalignement. For the -ve endcap there is also a 180deg rotation
  // around the y axis. getAbsoluteTransform() will also include the
  // misalignment.
  //
  // To get the transform of the element we have to first rotate
  // around z to the phi center of the element.  We want the local z
  // to point in the same direction for both endcaps (approximately
  // global z axis). For the negative endcap we therefore have to
  // rotate 180 CLHEP::deg around the Y axis.
 
  // We need to rotate to phi center before we apply the
  // misalignment. However, in the negative endcap the the phi
  // location is inverted (due to 180 rotation around y axis). This is
  // taken care of by the extra 180 CLHEP::deg rotation around Y that we do
  // to get the z axis pointing in the correct direction.
  auto transform =
    m_code.isPosZ()
      ? Amg::Transform3D((getMaterialGeom()->getAbsoluteTransform(alignStore) *
                          GeoTrf::RotateZ3D(phiCenter)))
      : Amg::Transform3D((getMaterialGeom()->getAbsoluteTransform(alignStore) *
                          GeoTrf::RotateY3D(180 * CLHEP::deg) *
                          GeoTrf::RotateZ3D(phiCenter)));
 
  // create the igredients and the cache
  auto center = Amg::Vector3D(transform.translation());
  auto bounds = std::make_unique<Trk::DiscBounds>(rMin, rMax, phiHalfWidth);
  auto normal = Amg::Vector3D(transform.rotation().col(2));
 
  return {transform, center, normal, std::move(bounds)};
}

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 200 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_EndcapElement::elementSurface ( ) const

overrideprivatevirtual

return the surface of the element

Implements InDetDD::TRT_BaseElement.

Definition at line 191 of file TRT_EndcapElement.cxx.

{
  if (not m_surface)
    m_surface.set(std::make_unique<Trk::DiscSurface>(*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_EndcapCode& InDetDD::TRT_EndcapElement::getCode

(

)

const

Doomed (??)

getConditionsData()

const TRT_EndcapConditions * InDetDD::TRT_EndcapElement::getConditionsData ( )

static

Returns a pointer to conditions data.

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

Definition at line 76 of file TRT_EndcapElement.cxx.

{
  return nullptr;
}

getDescriptor()

const TRT_EndcapDescriptor * InDetDD::TRT_EndcapElement::getDescriptor

(

)

const

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

Definition at line 82 of file TRT_EndcapElement.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 190 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.

{};

nextInZ()

const TRT_EndcapElement* InDetDD::TRT_EndcapElement::nextInZ

(

)

const

Next in Z:

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_EndcapElement& InDetDD::TRT_EndcapElement::operator= ( const TRT_EndcapElement &  right )

privatedelete

previousInZ()

const TRT_EndcapElement* InDetDD::TRT_EndcapElement::previousInZ

(

)

const

Prev in Z:

setNextInZ()

void InDetDD::TRT_EndcapElement::setNextInZ

(

const TRT_EndcapElement *

element

)

Set Next in Z.

Definition at line 88 of file TRT_EndcapElement.cxx.

{
  m_nextInZ = element;
}

setPreviousInZ()

void InDetDD::TRT_EndcapElement::setPreviousInZ

(

const TRT_EndcapElement *

element

)

Set Previous in Z.

Definition at line 94 of file TRT_EndcapElement.cxx.

{
  m_previousInZ = 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 154 of file TRT_BaseElement.cxx.

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

strawBounds()

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

finaloverridevirtual

the straw bounds

Implements InDetDD::TRT_BaseElement.

Definition at line 185 of file TRT_EndcapElement.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 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]->center();
}

strawDirection()

int InDetDD::TRT_EndcapElement::strawDirection ( ) const

finaloverridevirtual

StrawDirection.

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

Implements InDetDD::TRT_BaseElement.

Definition at line 253 of file TRT_EndcapElement.cxx.

{
  // Return +1 if the straw local axis is in the same direction as increasing
  // eta direction,
  //  -1 otherwise.
  // The straw axis by convention goes in the direction away from the readout.
  // This is towards the beam pipe. For +ve endcap it is what we want. For -ve
  // endcap it is oppposite.
  //
  //
  return (m_code.isPosZ()) ? +1 : -1;
}

strawLength()

const double & InDetDD::TRT_EndcapElement::strawLength ( ) const

overridevirtual

Active straw length.

Implements InDetDD::TRT_BaseElement.

Definition at line 70 of file TRT_EndcapElement.cxx.

{
  return m_descriptor->strawLength();
}

strawSurface()

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

inherited

Straw Surface: access to the surface via integer.

Definition at line 121 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 132 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();
}

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_EndcapElement::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 209 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);
  }
}

Member Data Documentation

m_code

TRT_EndcapCode InDetDD::TRT_EndcapElement::m_code

private

Definition at line 118 of file TRT_EndcapElement.h.

m_conditions

const TRT_Conditions* InDetDD::TRT_BaseElement::m_conditions =nullptr

protectedinherited

Definition at line 208 of file TRT_BaseElement.h.

m_descriptor

const TRT_EndcapDescriptor* InDetDD::TRT_EndcapElement::m_descriptor

private

Definition at line 119 of file TRT_EndcapElement.h.

m_id

Identifier InDetDD::TRT_BaseElement::m_id

protectedinherited

Definition at line 199 of file TRT_BaseElement.h.

m_idHash

IdentifierHash InDetDD::TRT_BaseElement::m_idHash

protectedinherited

Definition at line 200 of file TRT_BaseElement.h.

m_idHelper

const TRT_ID* InDetDD::TRT_BaseElement::m_idHelper =nullptr

protectedinherited

Definition at line 207 of file TRT_BaseElement.h.

m_nextInZ

const TRT_EndcapElement* InDetDD::TRT_EndcapElement::m_nextInZ

private

Definition at line 120 of file TRT_EndcapElement.h.

m_nstraws

unsigned int InDetDD::TRT_BaseElement::m_nstraws = 0

protectedinherited

Definition at line 206 of file TRT_BaseElement.h.

m_previousInZ

const TRT_EndcapElement* InDetDD::TRT_EndcapElement::m_previousInZ

private

Definition at line 121 of file TRT_EndcapElement.h.

m_strawSurfaces

std::vector<CxxUtils::CachedUniquePtr<Trk::StraightLineSurface> > InDetDD::TRT_BaseElement::m_strawSurfaces {}

protectedinherited

Definition at line 211 of file TRT_BaseElement.h.

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.

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.

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

• TRT_EndcapElement.h
• TRT_EndcapElement.cxx