RadialStripTopology Class Reference

#include <RadialStripTopology.h>

Inheritance diagram for RadialStripTopology:

Public Member Functions
float	angularWidth () const
float	centreToIntersection () const
virtual int	channel (const LocalPoint &) const
float	detHeight () const
virtual LocalError	localError (float strip, float stripErr2) const
virtual LocalError	localError (const MeasurementPoint &, const MeasurementError &) const
virtual float	localPitch (const LocalPoint &) const
virtual LocalPoint	localPosition (float strip) const
virtual LocalPoint	localPosition (const MeasurementPoint &) const
virtual float	localStripLength (const LocalPoint &) const
virtual MeasurementError	measurementError (const LocalPoint &, const LocalError &) const
virtual MeasurementPoint	measurementPosition (const LocalPoint &) const
virtual int	nearestStrip (const LocalPoint &) const
virtual int	nstrips () const
float	originToIntersection () const
float	phiOfOneEdge () const
virtual float	phiPitch (void) const
virtual float	pitch () const
	RadialStripTopology (int ns, float aw, float dh, float r, int yAx=1, float yMid=0.)
virtual float	strip (const LocalPoint &) const
virtual float	stripAngle (float strip) const
virtual float	stripLength () const
float	xOfStrip (int strip, float y) const
int	yAxisOrientation () const
float	yCentreOfStripPlane () const
float	yDistanceToIntersection (float y) const
float	yExtentOfStripPlane () const
virtual	~RadialStripTopology ()
Public Member Functions inherited from StripTopology
virtual LocalError	localError (float strip, float stripErr2, const Topology::LocalTrackPred &) const
	conversion taking also the angle from the predicted track state More...
virtual float	localPitch (const LocalPoint &lp, const Topology::LocalTrackAngles &) const
	conversion taking also the angle from the track state (LocalTrajectoryParameters) More...
virtual LocalPoint	localPosition (float strip, const Topology::LocalTrackPred &) const
	conversion taking also the predicted track state More...
virtual float	localStripLength (const LocalPoint &lp, const Topology::LocalTrackAngles &) const
	conversion taking also the angle from the track state (LocalTrajectoryParameters) More...
virtual float	strip (const LocalPoint &lp, const Topology::LocalTrackAngles &) const
	conversion taking also the angle from the track state (LocalTrajectoryParameters) More...
virtual	~StripTopology ()
Public Member Functions inherited from Topology
virtual int	channel (const LocalPoint &lp, const LocalTrackAngles &) const
	conversion taking also the angle from the track state More...
virtual LocalError	localError (const MeasurementPoint &mp, const MeasurementError &me, const LocalTrackPred &) const
	conversion taking also the angle from the predicted track state More...
virtual LocalPoint	localPosition (const MeasurementPoint &mp, const LocalTrackPred &) const
	conversion taking also the angle from the predicted track state More...
virtual MeasurementError	measurementError (const LocalPoint &lp, const LocalError &le, const LocalTrackAngles &) const
	conversion taking also the angle from the track state More...
virtual MeasurementPoint	measurementPosition (const LocalPoint &lp, const LocalTrackAngles &) const
	conversion taking also the angle from the track state More...
virtual	~Topology ()

Private Attributes
float	theAngularWidth
float	theCentreToIntersection
float	theDetHeight
int	theNumberOfStrips
float	thePhiOfOneEdge
int	theYAxisOrientation
float	yCentre

Friends
std::ostream &	operator<< (std::ostream &, const RadialStripTopology &)

Additional Inherited Members
Public Types inherited from Topology
typedef Point2DBase< double, LocalTag >	Local2DPoint
typedef Vector2D::MathVector	MathVector2D
typedef Basic2DVector< double >	Vector2D

Detailed Description

A StripTopology in which the component strips subtend a constant angular width, and, if projected, intersect at a point.

Author

Tim Cox

WARNING! Wherever 'float strip' is used the units of 'strip' are angular widths of each strip. The range is from 0.0 at the extreme edge of the 'first' strip at one edge of the detector, to nstrip*angular width at the other edge.
The centre of the first strip is at strip = 0.5
The centre of the last strip is at strip = 0.5 + (nstrip-1)
This is for consistency with CommonDet usage of 'float strip' (but where units are strip pitch rather than strip angular width.)

WARNING! If the mid-point along local y of the plane of strips does not correspond to the local coordinate origin, set the final ctor argument appropriately.

Definition at line 26 of file RadialStripTopology.h.

Constructor & Destructor Documentation

RadialStripTopology::RadialStripTopology	(	int	ns,
		float	aw,
		float	dh,
		float	r,
		int	yAx = 1,
		float	yMid = 0.
	)

Constructor from:

Parameters

ns	number of strips
aw	angular width of a strip
dh	detector height (usually 2 x apothem of TrapezoidalPlaneBounds)
r	radial distance from symmetry centre of detector to the point at which the outer edges of the two extreme strips (projected) intersect.
yAx	orientation of local y axis: 1 means pointing from the smaller side of the module to the larger side (along apothem), and -1 means in the opposite direction, i.e. from the larger side along the apothem to the smaller side. Default value is 1.
yMid	local y offset if mid-point of detector (strip plane) does not coincide with local origin. This decouples the extent of strip plane from the boundary of the detector in which the RST is embedded.

Definition at line 9 of file RadialStripTopology.cc.

References LogTrace, theAngularWidth, theNumberOfStrips, thePhiOfOneEdge, theYAxisOrientation, and yCentre.

                                                                                                 :
  theNumberOfStrips(ns), theAngularWidth(aw), 
  theDetHeight(dh), theCentreToIntersection(r),
  theYAxisOrientation(yAx), yCentre( yMid) {   
  // Angular offset of extreme edge of detector, so that angle is
  // zero for a strip lying along local y axis = long symmetry axis of plane of strips
  thePhiOfOneEdge = -(0.5*theNumberOfStrips) * theAngularWidth * yAx;
  
  LogTrace("RadialStripTopology") << "RadialStripTopology: constructed with"
        << " strips = " << ns
        << " width = " << aw << " rad "
        << " det_height = " << dh
        << " ctoi = " << r 
        << " phi_edge = " << thePhiOfOneEdge << " rad "
        << " y_ax_ori = " << theYAxisOrientation
    << " y_det_centre = " << yCentre 
        << "\n";
}    

virtual RadialStripTopology::~RadialStripTopology ( )

inlinevirtual

Destructor

Definition at line 48 of file RadialStripTopology.h.

{}

Member Function Documentation

float RadialStripTopology::angularWidth ( ) const

inline

Angular width of a each strip

Definition at line 169 of file RadialStripTopology.h.

References theAngularWidth.

Referenced by FWRecoGeometryESProducer::addCSCGeometry(), FWTGeoRecoGeometryESProducer::addCSCGeometry(), TrackerValidationVariables::fillHitQuantities(), StripCPE::fillParams(), localError(), localPitch(), OffsetRadialStripTopology::localPosition(), measurementError(), measurementPosition(), OffsetRadialStripTopology::OffsetRadialStripTopology(), phiPitch(), OffsetRadialStripTopology::strip(), strip(), OffsetRadialStripTopology::stripAngle(), stripAngle(), and ValidateGeometry::validateCSCLayerGeometry().

{ return theAngularWidth;}

float RadialStripTopology::centreToIntersection ( ) const

inline

Distance from the intersection of the projections of the extreme edges of the two extreme strips to the symmetry centre of the plane of strips.

Definition at line 191 of file RadialStripTopology.h.

References theCentreToIntersection.

Referenced by FWRecoGeometryESProducer::addCSCGeometry(), FWTGeoRecoGeometryESProducer::addCSCGeometry(), localError(), operator<<(), and ValidateGeometry::validateCSCLayerGeometry().

{ return theCentreToIntersection; }

int RadialStripTopology::channel ( const LocalPoint &  lp ) const

virtual

Channel number corresponding to a given LocalPoint.
This is effectively an integer version of strip(), with range 0 to nstrips-1.
LocalPoints outside the detector strip plane will be considered as contributing to the edge channels 0 or nstrips-1.

Implements Topology.

Reimplemented in OffsetRadialStripTopology, CSCUngangedStripTopology, and CSCGangedStripTopology.

Definition at line 28 of file RadialStripTopology.cc.

References min, strip(), and theNumberOfStrips.

Referenced by CSCUngangedStripTopology::channel().

{ return   std::min( int( strip(lp) ), theNumberOfStrips-1 ) ;}

float RadialStripTopology::detHeight ( ) const

inline

Length of long symmetry axis of plane of strips

Definition at line 179 of file RadialStripTopology.h.

References theDetHeight.

Referenced by TrackerValidationVariables::fillHitQuantities(), localError(), OffsetRadialStripTopology::localPosition(), localPosition(), localStripLength(), measurementError(), measurementPosition(), and operator<<().

{ return theDetHeight;}

LocalError RadialStripTopology::localError ( float  strip, float  stripErr2  ) const

virtual

LocalError for a pure strip measurement, where 'strip' is the (float) position (a 'phi' angle wrt y axis) and stripErr2 is the sigma-squared. Both quantities are expressed in units of theAngularWidth of a strip.

Implements StripTopology.

Definition at line 70 of file RadialStripTopology.cc.

References angularWidth(), centreToIntersection(), detHeight(), f, phi, funct::pow(), findQualityFiles::rr, stripAngle(), funct::tan(), groupFilesInBlocks::tt, and create_public_lumi_plots::xy.

                                                                             {
  const double
    phi(stripAngle(strip)), t1(std::tan(phi)), t2(t1*t1),
    // s1(std::sin(phi)), c1(std::cos(phi)),
    // cs(s1*c1), s2(s1*s1), c2(1-s2), // rotation matrix

    tt( stripErr2 * std::pow( centreToIntersection()*angularWidth() ,2.f) ), // tangential sigma^2   *c2
    rr( std::pow(detHeight(), 2.f) * (1.f/12.f) ),                                   // radial sigma^2( uniform prob density along strip)  *c2

    xx( tt + t2*rr  ),
    yy( t2*tt + rr  ),
    xy( t1*( rr - tt ) );
  
  return LocalError( xx, xy, yy );
}

LocalError RadialStripTopology::localError ( const MeasurementPoint &  mp, const MeasurementError &  me  ) const

virtual

LocalError for a given MeasurementPoint with known MeasurementError. This may be used in Kalman filtering and hence must allow possible correlations between the components.

Implements Topology.

Definition at line 86 of file RadialStripTopology.cc.

References angularWidth(), alignmentValidation::c1, centreToIntersection(), funct::cos(), fwrapper::cs, detHeight(), phi, dttmaxenums::R, findQualityFiles::rr, indexGen::s2, funct::sin(), stripAngle(), groupFilesInBlocks::tt, MeasurementError::uu(), MeasurementError::uv(), MeasurementError::vv(), PV2DBase< T, PVType, FrameType >::x(), create_public_lumi_plots::xy, PV2DBase< T, PVType, FrameType >::y(), and yAxisOrientation().

                                                                                                       {
  const double
    phi(stripAngle(mp.x())), s1(std::sin(phi)), c1(std::cos(phi)),
    cs(s1*c1), s2(s1*s1), c2(1-s2), // rotation matrix

    T( angularWidth() * ( centreToIntersection() + yAxisOrientation()*mp.y()*detHeight()) / c1 ), // tangential measurement unit (local pitch)
    R( detHeight()/ c1 ),  // radial measurement unit (strip length)
    tt( me.uu() * T*T ),   // tangential sigma^2
    rr( me.vv() * R*R   ), // radial sigma^2
    tr( me.uv() * T*R ),  
    
    xx(  c2*tt  +  2*cs*tr  +  s2*rr      ),
    yy(  s2*tt  -  2*cs*tr  +  c2*rr      ),
    xy( cs*( rr - tt )  +  tr*( c2 - s2 ) );

  return LocalError( xx, xy, yy );
}

float RadialStripTopology::localPitch ( const LocalPoint &  lp ) const

virtual

Pitch (strip width) at a given LocalPoint.
BEWARE: are you sure you really want to call this for a RadialStripTopology?

Implements StripTopology.

Definition at line 122 of file RadialStripTopology.cc.

References angularWidth(), funct::cos(), f, min, nstrips(), funct::pow(), funct::sin(), strip(), stripAngle(), PV3DBase< T, PVType, FrameType >::y(), and yDistanceToIntersection().

Referenced by StripCPE::fillParams(), and CSCLayerGeometry::stripPitch().

                                                                { 
 // The local pitch is the local x width of the strip at the local (x,y)
  const int istrip = std::min(nstrips(), static_cast<int>(strip(lp)) + 1); // which strip number
  const float fangle = stripAngle(static_cast<float>(istrip) - 0.5); // angle of strip centre
  return
    yDistanceToIntersection( lp.y() ) * std::sin(angularWidth()) /
    std::pow( std::cos(fangle-0.5f*angularWidth()), 2.f);
}

LocalPoint RadialStripTopology::localPosition ( float  strip ) const

virtual

LocalPoint on x axis for given 'strip' 'strip' is a float in units of the strip (angular) width

Implements StripTopology.

Reimplemented in OffsetRadialStripTopology.

Definition at line 52 of file RadialStripTopology.cc.

References originToIntersection(), stripAngle(), funct::tan(), and yAxisOrientation().

Referenced by TrackerValidationVariables::fillHitQuantities(), and OffsetRadialStripTopology::localPosition().

                                                               {
  return LocalPoint( yAxisOrientation() * originToIntersection() * tan( stripAngle(strip) ), 0 );
}

LocalPoint RadialStripTopology::localPosition ( const MeasurementPoint &  mp ) const

virtual

LocalPoint for a given MeasurementPoint
What's a MeasurementPoint?
In analogy with that used with TrapezoidalStripTopology objects, a MeasurementPoint is a 2-dim object.
The first dimension measures the angular position wrt central line of symmetry of detector, in units of strip (angular) widths (range 0 to total angle subtended by a detector).
The second dimension measures the fractional position along the strip (range -0.5 to +0.5).
BEWARE! The components are not Cartesian.

Implements Topology.

Reimplemented in OffsetRadialStripTopology.

Definition at line 56 of file RadialStripTopology.cc.

References detHeight(), stripAngle(), funct::tan(), PV2DBase< T, PVType, FrameType >::x(), vdt::x, detailsBasic3DVector::y, PV2DBase< T, PVType, FrameType >::y(), yAxisOrientation(), yCentreOfStripPlane(), and yDistanceToIntersection().

                                                                              {
  const float  // y = (L/cos(phi))*mp.y()*cos(phi) 
    y( mp.y()*detHeight()  +  yCentreOfStripPlane() ),
    x( yAxisOrientation() * yDistanceToIntersection( y ) * std::tan ( stripAngle( mp.x() ) ) );
  return LocalPoint( x, y );
}

float RadialStripTopology::localStripLength ( const LocalPoint &  lp ) const

virtual

Length of a strip passing through a given LocalPpoint

Implements StripTopology.

Definition at line 36 of file RadialStripTopology.cc.

References detHeight(), f, funct::pow(), mathSSE::sqrt(), PV3DBase< T, PVType, FrameType >::x(), PV3DBase< T, PVType, FrameType >::y(), and yDistanceToIntersection().

Referenced by TrackerValidationVariables::fillHitQuantities().

                                                                      {  
  return detHeight() * std::sqrt(1.f + std::pow( lp.x()/yDistanceToIntersection(lp.y()), 2.f) );
}

MeasurementError RadialStripTopology::measurementError ( const LocalPoint &  p, const LocalError &  e  ) const

virtual

Implements Topology.

Definition at line 104 of file RadialStripTopology.cc.

References angularWidth(), fwrapper::cs, detHeight(), f, funct::pow(), indexGen::s2, mathSSE::sqrt(), lumiQTWidget::t, PV3DBase< T, PVType, FrameType >::x(), LocalError::xx(), LocalError::xy(), PV3DBase< T, PVType, FrameType >::y(), yAxisOrientation(), yDistanceToIntersection(), and LocalError::yy().

Referenced by TrackerValidationVariables::fillHitQuantities().

                                                                                                      {
  const double
    yHitToInter(yDistanceToIntersection(p.y())),
    t(yAxisOrientation() * p.x() / yHitToInter),   // tan(strip angle) 
    cs(t/(1+t*t)), s2(t*cs), c2(1-s2),             // rotation matrix

    T2( 1./(std::pow(angularWidth(),2.f) * ( std::pow(p.x(),2.f) + std::pow(yHitToInter,2)) )), // 1./tangential measurement unit (local pitch) ^2
    R2( c2/std::pow(detHeight(),2.f) ),                                    // 1./ radial measurement unit (strip length) ^2

    uu(       ( c2*e.xx() - 2*cs*e.xy() + s2*e.yy() )   * T2 ),
    vv(       ( s2*e.xx() + 2*cs*e.xy() + c2*e.yy() )   * R2 ),
    uv( ( cs*( e.xx() - e.yy() ) + e.xy()*( c2 - s2 ) )  * std::sqrt (T2*R2) );
  
  return MeasurementError(uu, uv, vv);
}

MeasurementPoint RadialStripTopology::measurementPosition ( const LocalPoint &  lp ) const

virtual

Implements Topology.

Reimplemented in OffsetRadialStripTopology.

Definition at line 63 of file RadialStripTopology.cc.

References angularWidth(), detHeight(), phi, phiOfOneEdge(), PV3DBase< T, PVType, FrameType >::x(), PV3DBase< T, PVType, FrameType >::y(), yAxisOrientation(), yCentreOfStripPlane(), and yDistanceToIntersection().

Referenced by TrackerValidationVariables::fillHitQuantities(), and OffsetRadialStripTopology::measurementPosition().

                                                                                    {
  const float // phi is [pi/2 - conventional local phi], use atan2(x,y) rather than atan2(y,x)
    phi( yAxisOrientation() * std::atan2( lp.x(), yDistanceToIntersection( lp.y() ) ));
  return MeasurementPoint( yAxisOrientation()*( phi-phiOfOneEdge() ) / angularWidth(),
               ( lp.y() - yCentreOfStripPlane() )        / detHeight() );
}

int RadialStripTopology::nearestStrip ( const LocalPoint &  lp ) const

virtual

Nearest strip to given LocalPoint

Definition at line 30 of file RadialStripTopology.cc.

References max(), min, nstrips(), and strip().

Referenced by CSCLayerGeometry::nearestStrip().

{   return std::min( nstrips(), static_cast<int>( std::max(float(0), strip(lp)) ) + 1);}

virtual int RadialStripTopology::nstrips ( ) const

inlinevirtual

Total number of strips

Implements StripTopology.

Definition at line 130 of file RadialStripTopology.h.

References theNumberOfStrips.

Referenced by localPitch(), nearestStrip(), CSCLayerGeometry::numberOfStrips(), operator<<(), OffsetRadialStripTopology::strip(), and strip().

{ return theNumberOfStrips; }

float RadialStripTopology::originToIntersection ( ) const

inline

(y) distance from intersection of the projections of the strips to the local coordinate origin. Same as centreToIntersection() if symmetry centre of strip plane coincides with local origin.

Definition at line 198 of file RadialStripTopology.h.

References theCentreToIntersection, and yCentre.

Referenced by CSCStripTopology::equationOfStrip(), TrackerValidationVariables::fillHitQuantities(), localPosition(), OffsetRadialStripTopology::localPosition(), OffsetRadialStripTopology::strip(), OffsetRadialStripTopology::toLocal(), OffsetRadialStripTopology::toPrime(), and yDistanceToIntersection().

{ return (theCentreToIntersection - yCentre); }

float RadialStripTopology::phiOfOneEdge ( ) const

inline

Convenience function to access azimuthal angle of extreme edge of first strip measured relative to long symmetry axis of the plane of strips.

WARNING! This angle is measured clockwise from the local y axis which means it is in the conventional azimuthal phi plane, but azimuth is of course measured from local x axis not y. The range of this angle is -(full angle)/2 to +(full angle)/2.
where (full angle) = nstrips() * angularWidth().

Definition at line 212 of file RadialStripTopology.h.

References thePhiOfOneEdge.

Referenced by FWRecoGeometryESProducer::addCSCGeometry(), FWTGeoRecoGeometryESProducer::addCSCGeometry(), OffsetRadialStripTopology::localPosition(), measurementPosition(), operator<<(), OffsetRadialStripTopology::strip(), strip(), OffsetRadialStripTopology::stripAngle(), stripAngle(), and ValidateGeometry::validateCSCLayerGeometry().

{ return thePhiOfOneEdge; }

virtual float RadialStripTopology::phiPitch ( void  ) const

inlinevirtual

Phi pitch of each strip (= angular width!)

Definition at line 174 of file RadialStripTopology.h.

References angularWidth().

Referenced by operator<<(), and CSCLayerGeometry::stripPhiPitch().

{ return angularWidth(); }

float RadialStripTopology::pitch ( ) const

virtual

BEWARE: calling pitch() throws an exception.
Pitch is conventional name for width of something, but this is not sensible for a RadialStripTopology since strip widths vary with local y. Use localPitch(.) instead.

Implements StripTopology.

Definition at line 120 of file RadialStripTopology.cc.

{  throw Genexception("RadialStripTopology::pitch() called - makes no sense, use localPitch(.) instead."); return 0.;}

float RadialStripTopology::strip ( const LocalPoint &  lp ) const

virtual

Strip in which a given LocalPoint lies. This is a float which represents the fractional strip position within the detector.
Returns zero if the LocalPoint falls at the extreme low edge of the detector or BELOW, and float(nstrips) if it falls at the extreme high edge or ABOVE.

Implements StripTopology.

Reimplemented in OffsetRadialStripTopology.

Definition at line 45 of file RadialStripTopology.cc.

References angularWidth(), max(), min, nstrips(), phi, phiOfOneEdge(), PV3DBase< T, PVType, FrameType >::x(), PV3DBase< T, PVType, FrameType >::y(), yAxisOrientation(), and yDistanceToIntersection().

Referenced by CSCGangedStripTopology::channel(), channel(), localPitch(), nearestStrip(), and SiClusterTranslator::produce().

                                                           {
  const float   // phi is measured from y axis --> sign of angle is sign of x * yAxisOrientation --> use atan2(x,y), not atan2(y,x)
    phi( std::atan2( lp.x(), yDistanceToIntersection( lp.y() ) )),
    aStrip( ( phi - yAxisOrientation() * phiOfOneEdge() )/angularWidth());
  return  std::max(float(0), std::min( (float)nstrips(), aStrip ));
}

float RadialStripTopology::stripAngle ( float  strip ) const

virtual

Angle between strip and symmetry axis (=local y axis) for given strip.
This is like a phi angle but measured clockwise from y axis rather than counter clockwise from x axis. Note that 'strip' is a float with a continuous range from 0 to float(nstrips) to cover the whole detector, and the centres of strips correspond to half-integer values 0.5, 1.5, ..., nstrips-0.5 whereas values 1, 2, ... nstrips correspond to the upper phi edges of the strips.

Implements StripTopology.

Reimplemented in OffsetRadialStripTopology.

Definition at line 32 of file RadialStripTopology.cc.

References angularWidth(), phiOfOneEdge(), and yAxisOrientation().

Referenced by TrackerValidationVariables::fillHitQuantities(), localError(), localPitch(), localPosition(), and xOfStrip().

{ return   phiOfOneEdge() + yAxisOrientation() * strip * angularWidth() ;}

virtual float RadialStripTopology::stripLength ( ) const

inlinevirtual

Height of detector (= length of long symmetry axis of the plane of strips).

Implements StripTopology.

Definition at line 135 of file RadialStripTopology.h.

References theDetHeight.

Referenced by StripCPE::fillParams().

{ return theDetHeight; }

float RadialStripTopology::xOfStrip	(	int	strip,
		float	y
	)		const

Local x where centre of strip intersects input local y
'strip' should be in range 1 to nstrips()

Definition at line 40 of file RadialStripTopology.cc.

References stripAngle(), funct::tan(), yAxisOrientation(), and yDistanceToIntersection().

Referenced by CSCLayerGeometry::xOfStrip().

                                                            { 
  return   
    yAxisOrientation() * yDistanceToIntersection( y ) * std::tan( stripAngle(static_cast<float>(strip) - 0.5 ) );
}

int RadialStripTopology::yAxisOrientation ( ) const

inline

y axis orientation, 1 means detector width increases with local y

Definition at line 228 of file RadialStripTopology.h.

References theYAxisOrientation.

Referenced by FWRecoGeometryESProducer::addCSCGeometry(), FWTGeoRecoGeometryESProducer::addCSCGeometry(), localError(), localPosition(), measurementError(), measurementPosition(), operator<<(), strip(), stripAngle(), ValidateGeometry::validateCSCLayerGeometry(), xOfStrip(), and yDistanceToIntersection().

{ return theYAxisOrientation; }

float RadialStripTopology::yCentreOfStripPlane ( ) const

inline

Offset in local y between midpoint of detector (strip plane) extent and local origin

Definition at line 233 of file RadialStripTopology.h.

References yCentre.

Referenced by FWRecoGeometryESProducer::addCSCGeometry(), FWTGeoRecoGeometryESProducer::addCSCGeometry(), OffsetRadialStripTopology::localPosition(), localPosition(), measurementPosition(), operator<<(), ValidateGeometry::validateCSCLayerGeometry(), and CSCStripTopology::yLimitsOfStripPlane().

{ return yCentre; }

float RadialStripTopology::yDistanceToIntersection

(

float

y

)

const

Distance in local y from a hit to the point of intersection of projected strips

Definition at line 34 of file RadialStripTopology.cc.

References originToIntersection(), and yAxisOrientation().

Referenced by localPitch(), localPosition(), localStripLength(), measurementError(), measurementPosition(), strip(), and xOfStrip().

{ return   yAxisOrientation()*y + originToIntersection() ;}

float RadialStripTopology::yExtentOfStripPlane ( ) const

inline

y extent of strip plane

Definition at line 184 of file RadialStripTopology.h.

References theDetHeight.

Referenced by CSCStripTopology::yLimitsOfStripPlane().

{ return theDetHeight; } // same as detHeight()

Friends And Related Function Documentation

std::ostream& operator<< ( std::ostream &  os, const RadialStripTopology &  rst  )

friend

Definition at line 132 of file RadialStripTopology.cc.

                                                                            {
  os  << "RadialStripTopology " << std::endl
      << " " << std::endl
      << "number of strips          " << rst.nstrips() << std::endl
      << "centre to whereStripsMeet " << rst.centreToIntersection() << std::endl
      << "detector height in y      " << rst.detHeight() << std::endl
      << "angular width of strips   " << rst.phiPitch() << std::endl
      << "phi of one edge           " << rst.phiOfOneEdge() << std::endl
      << "y axis orientation        " << rst.yAxisOrientation() << std::endl
      << "y of centre of strip plane " << rst.yCentreOfStripPlane() << std::endl;
  return os;
}

Member Data Documentation

float RadialStripTopology::theAngularWidth

private

Definition at line 245 of file RadialStripTopology.h.

Referenced by angularWidth(), and RadialStripTopology().

float RadialStripTopology::theCentreToIntersection

private

Definition at line 247 of file RadialStripTopology.h.

Referenced by centreToIntersection(), and originToIntersection().

float RadialStripTopology::theDetHeight

private

Definition at line 246 of file RadialStripTopology.h.

Referenced by detHeight(), stripLength(), and yExtentOfStripPlane().

int RadialStripTopology::theNumberOfStrips

private

Definition at line 244 of file RadialStripTopology.h.

Referenced by channel(), nstrips(), and RadialStripTopology().

float RadialStripTopology::thePhiOfOneEdge

private

Definition at line 248 of file RadialStripTopology.h.

Referenced by phiOfOneEdge(), and RadialStripTopology().

int RadialStripTopology::theYAxisOrientation

private

Definition at line 249 of file RadialStripTopology.h.

Referenced by RadialStripTopology(), and yAxisOrientation().

float RadialStripTopology::yCentre

private

Definition at line 250 of file RadialStripTopology.h.

Referenced by originToIntersection(), RadialStripTopology(), and yCentreOfStripPlane().