CSCRadialStripTopology Class Reference

#include <CSCRadialStripTopology.h>

Inheritance diagram for CSCRadialStripTopology:

Public Member Functions
float	angularWidth () const override
float	centreToIntersection () const override
int	channel (const LocalPoint &) const override
	CSCRadialStripTopology (int ns, float aw, float dh, float r, float yAx=1.f, float yMid=0.)
float	detHeight () const override
LocalError	localError (float strip, float stripErr2) const override
LocalError	localError (const MeasurementPoint &, const MeasurementError &) const override
float	localPitch (const LocalPoint &) const override
LocalPoint	localPosition (float strip) const override
LocalPoint	localPosition (const MeasurementPoint &) const override
float	localStripLength (const LocalPoint &) const override
MeasurementError	measurementError (const LocalPoint &, const LocalError &) const override
MeasurementPoint	measurementPosition (const LocalPoint &) const override
int	nearestStrip (const LocalPoint &) const override
int	nstrips () const override
float	originToIntersection () const override
float	phiOfOneEdge () const override
float	phiPitch (void) const override
float	strip (const LocalPoint &) const override
float	stripAngle (float strip) const override
float	stripLength () const override
float	xOfStrip (int strip, float y) const override
float	yAxisOrientation () const override
float	yCentreOfStripPlane () const override
float	yDistanceToIntersection (float y) const override
float	yExtentOfStripPlane () const override
	~CSCRadialStripTopology () override
Public Member Functions inherited from RadialStripTopology
float	pitch () const final
	~RadialStripTopology () override
Public Member Functions inherited from StripTopology
virtual float	coveredStrips (const LocalPoint &lp1, const LocalPoint &lp2) const
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...
	~StripTopology () override
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
float	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

Definition at line 28 of file CSCRadialStripTopology.h.

Constructor & Destructor Documentation

CSCRadialStripTopology::CSCRadialStripTopology	(	int	ns,
		float	aw,
		float	dh,
		float	r,
		float	yAx = 1.f,
		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 7 of file CSCRadialStripTopology.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("CSCRadialStripTopology") << "CSCRadialStripTopology: 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";
}    

CSCRadialStripTopology::~CSCRadialStripTopology ( )

inlineoverride

Destructor

Definition at line 50 of file CSCRadialStripTopology.h.

References localError(), localPitch(), localPosition(), strip(), and stripAngle().

{}

Member Function Documentation

float CSCRadialStripTopology::angularWidth ( ) const

inlineoverridevirtual

Angular width of a each strip

Implements RadialStripTopology.

Definition at line 163 of file CSCRadialStripTopology.h.

References theAngularWidth.

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

{ return theAngularWidth;}

float CSCRadialStripTopology::centreToIntersection ( ) const

inlineoverridevirtual

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.

Implements RadialStripTopology.

Definition at line 185 of file CSCRadialStripTopology.h.

References theCentreToIntersection.

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

{ return theCentreToIntersection; }

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

overridevirtual

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 RadialStripTopology.

Reimplemented in OffsetRadialStripTopology, CSCUngangedStripTopology, and CSCGangedStripTopology.

Definition at line 26 of file CSCRadialStripTopology.cc.

References min(), strip(), and theNumberOfStrips.

Referenced by CSCUngangedStripTopology::channel(), and stripLength().

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

float CSCRadialStripTopology::detHeight ( ) const

inlineoverridevirtual

Length of long symmetry axis of plane of strips

Implements RadialStripTopology.

Definition at line 173 of file CSCRadialStripTopology.h.

References theDetHeight.

Referenced by localError(), OffsetRadialStripTopology::localPosition(), localPosition(), localStripLength(), measurementError(), and measurementPosition().

{ return theDetHeight;}

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

overridevirtual

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 RadialStripTopology.

Definition at line 68 of file CSCRadialStripTopology.cc.

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

Referenced by ~CSCRadialStripTopology().

                                                                                {
  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 CSCRadialStripTopology::localError ( const MeasurementPoint &  mp, const MeasurementError &  me  ) const

overridevirtual

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 RadialStripTopology.

Definition at line 84 of file CSCRadialStripTopology.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(), geometryCSVtoXML::xx, geometryCSVtoXML::xy, PV2DBase< T, PVType, FrameType >::y(), yAxisOrientation(), and geometryCSVtoXML::yy.

                                                                                                          {
  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 CSCRadialStripTopology::localPitch ( const LocalPoint &  lp ) const

overridevirtual

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

Implements RadialStripTopology.

Definition at line 119 of file CSCRadialStripTopology.cc.

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

Referenced by CSCLayerGeometry::stripPitch(), and ~CSCRadialStripTopology().

                                                                   { 
 // 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 CSCRadialStripTopology::localPosition ( float  strip ) const

overridevirtual

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

Implements RadialStripTopology.

Reimplemented in OffsetRadialStripTopology.

Definition at line 50 of file CSCRadialStripTopology.cc.

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

Referenced by OffsetRadialStripTopology::localPosition(), and ~CSCRadialStripTopology().

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

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

overridevirtual

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 RadialStripTopology.

Reimplemented in OffsetRadialStripTopology.

Definition at line 54 of file CSCRadialStripTopology.cc.

References detHeight(), stripAngle(), funct::tan(), x, PV2DBase< T, PVType, FrameType >::x(), 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 CSCRadialStripTopology::localStripLength ( const LocalPoint &  lp ) const

overridevirtual

Length of a strip passing through a given LocalPpoint

Implements RadialStripTopology.

Definition at line 34 of file CSCRadialStripTopology.cc.

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

Referenced by stripLength().

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

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

overridevirtual

Implements RadialStripTopology.

Definition at line 102 of file CSCRadialStripTopology.cc.

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

Referenced by stripLength().

                                                                                                         {
  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 CSCRadialStripTopology::measurementPosition ( const LocalPoint &  lp ) const

overridevirtual

Implements RadialStripTopology.

Reimplemented in OffsetRadialStripTopology.

Definition at line 61 of file CSCRadialStripTopology.cc.

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

Referenced by OffsetRadialStripTopology::measurementPosition(), and stripLength().

                                                                                       {
  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 CSCRadialStripTopology::nearestStrip ( const LocalPoint &  lp ) const

overridevirtual

Nearest strip to given LocalPoint

Implements RadialStripTopology.

Definition at line 28 of file CSCRadialStripTopology.cc.

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

Referenced by CSCLayerGeometry::nearestStrip(), and phiOfOneEdge().

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

int CSCRadialStripTopology::nstrips ( ) const

inlineoverridevirtual

Total number of strips

Implements RadialStripTopology.

Definition at line 124 of file CSCRadialStripTopology.h.

References theNumberOfStrips.

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

{ return theNumberOfStrips; }

float CSCRadialStripTopology::originToIntersection ( ) const

inlineoverridevirtual

(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.

Implements RadialStripTopology.

Definition at line 192 of file CSCRadialStripTopology.h.

References theCentreToIntersection, and yCentre.

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

{ return (theCentreToIntersection - yCentre); }

float CSCRadialStripTopology::phiOfOneEdge ( ) const

inlineoverridevirtual

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().

Implements RadialStripTopology.

Definition at line 206 of file CSCRadialStripTopology.h.

References nearestStrip(), thePhiOfOneEdge, xOfStrip(), and y.

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

{ return thePhiOfOneEdge; }

float CSCRadialStripTopology::phiPitch ( void  ) const

inlineoverridevirtual

Phi pitch of each strip (= angular width!)

Implements RadialStripTopology.

Definition at line 168 of file CSCRadialStripTopology.h.

References angularWidth().

Referenced by CSCLayerGeometry::stripPhiPitch().

{ return angularWidth(); }

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

overridevirtual

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 RadialStripTopology.

Reimplemented in OffsetRadialStripTopology.

Definition at line 43 of file CSCRadialStripTopology.cc.

References angularWidth(), SiStripPI::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 ~CSCRadialStripTopology().

                                                              {
  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 CSCRadialStripTopology::stripAngle ( float  strip ) const

overridevirtual

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 RadialStripTopology.

Reimplemented in OffsetRadialStripTopology.

Definition at line 30 of file CSCRadialStripTopology.cc.

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

Referenced by localError(), localPitch(), localPosition(), xOfStrip(), and ~CSCRadialStripTopology().

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

float CSCRadialStripTopology::stripLength ( ) const

inlineoverridevirtual

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

Implements RadialStripTopology.

Definition at line 129 of file CSCRadialStripTopology.h.

References channel(), localStripLength(), measurementError(), measurementPosition(), and theDetHeight.

{ return theDetHeight; }

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

overridevirtual

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

Implements RadialStripTopology.

Definition at line 38 of file CSCRadialStripTopology.cc.

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

Referenced by phiOfOneEdge(), and CSCLayerGeometry::xOfStrip().

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

float CSCRadialStripTopology::yAxisOrientation ( ) const

inlineoverridevirtual

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

Implements RadialStripTopology.

Definition at line 222 of file CSCRadialStripTopology.h.

References theYAxisOrientation.

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

{ return theYAxisOrientation; }

float CSCRadialStripTopology::yCentreOfStripPlane ( ) const

inlineoverridevirtual

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

Implements RadialStripTopology.

Definition at line 227 of file CSCRadialStripTopology.h.

References operator<<, yCentre, and yDistanceToIntersection().

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

{ return yCentre; }

float CSCRadialStripTopology::yDistanceToIntersection ( float  y ) const

overridevirtual

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

Implements RadialStripTopology.

Definition at line 32 of file CSCRadialStripTopology.cc.

References originToIntersection(), and yAxisOrientation().

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

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

float CSCRadialStripTopology::yExtentOfStripPlane ( ) const

inlineoverridevirtual

y extent of strip plane

Implements RadialStripTopology.

Definition at line 178 of file CSCRadialStripTopology.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 10 of file RadialStripTopology.cc.

Referenced by yCentreOfStripPlane().

                                                                            {
  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 CSCRadialStripTopology::theAngularWidth

private

Definition at line 239 of file CSCRadialStripTopology.h.

Referenced by angularWidth(), and CSCRadialStripTopology().

float CSCRadialStripTopology::theCentreToIntersection

private

Definition at line 241 of file CSCRadialStripTopology.h.

Referenced by centreToIntersection(), and originToIntersection().

float CSCRadialStripTopology::theDetHeight

private

Definition at line 240 of file CSCRadialStripTopology.h.

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

int CSCRadialStripTopology::theNumberOfStrips

private

Definition at line 238 of file CSCRadialStripTopology.h.

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

float CSCRadialStripTopology::thePhiOfOneEdge

private

Definition at line 242 of file CSCRadialStripTopology.h.

Referenced by CSCRadialStripTopology(), and phiOfOneEdge().

float CSCRadialStripTopology::theYAxisOrientation

private

Definition at line 243 of file CSCRadialStripTopology.h.

Referenced by CSCRadialStripTopology(), and yAxisOrientation().

float CSCRadialStripTopology::yCentre

private

Definition at line 244 of file CSCRadialStripTopology.h.

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