CSCWireTopology Class Reference

#include <CSCWireTopology.h>

Inheritance diagram for CSCWireTopology:

Public Member Functions
virtual int	channel (const LocalPoint &p) const
	CSCWireTopology (const CSCWireGroupPackage &wg, double yOfFirstWire, float wireAngleInDegrees)
	CSCWireTopology (const CSCWireTopology &)
std::pair< float, float >	equationOfWire (float wire) const
double	extentOfWirePlane () const
bool	insideYOfWirePlane (float y) const
double	lengthOfPlane () const
virtual LocalError	localError (const MeasurementPoint &, const MeasurementError &) const
virtual LocalPoint	localPosition (const MeasurementPoint &) const
virtual MeasurementError	measurementError (const LocalPoint &, const LocalError &) const
virtual MeasurementPoint	measurementPosition (const LocalPoint &) const
float	middleWireOfGroup (int wireGroup) const
double	narrowWidthOfPlane () const
int	nearestWire (const LocalPoint &lp) const
int	numberOfWireGroups () const
int	numberOfWires () const
int	numberOfWiresPerGroup (int wireGroup) const
CSCWireTopology &	operator= (const CSCWireTopology &)
float	restrictToYOfWirePlane (float y) const
double	wideWidthOfPlane () const
float	wireAngle () const
std::pair< LocalPoint, LocalPoint >	wireEnds (float wire) const
int	wireGroup (int wire) const
float	wirePitch () const
double	wireSpacing () const
std::vector< float >	wireValues (float wire) const
float	yOfWire (float wire, float x=0.) const
float	yOfWireGroup (int wireGroup, float x=0.) const
float	yResolution (int wireGroup=1) const
virtual	~CSCWireTopology ()
Public Member Functions inherited from WireTopology
virtual	~WireTopology ()
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
double	theAlignmentPinToFirstWire
CSCWireGeometry *	theWireGeometry
CSCWireGrouping *	theWireGrouping

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

Detailed Description

A concrete class derived from WireTopology, to handle wire (group) geometry functionality for endcap muon CSCs.

Author

Tim Cox

Definition at line 18 of file CSCWireTopology.h.

Constructor & Destructor Documentation

CSCWireTopology::~CSCWireTopology ( )

virtual

Definition at line 13 of file CSCWireTopology.cc.

References theWireGeometry, and theWireGrouping.

                                  { 
  delete theWireGrouping;
  delete theWireGeometry; 
}

CSCWireTopology::CSCWireTopology	(	const CSCWireGroupPackage &	wg,
		double	yOfFirstWire,
		float	wireAngleInDegrees
	)

Constructor from endcap muon CSC wire geometry specs

Definition at line 18 of file CSCWireTopology.cc.

References CSCWireGroupPackage::consecutiveGroups, CSCWireGroupPackage::lengthOfWirePlane, LogTrace, CSCWireGroupPackage::narrowWidthOfWirePlane, CSCWireGroupPackage::numberOfGroups, theWireGeometry, theWireGrouping, CSCWireGroupPackage::wideWidthOfWirePlane, CSCWireGroupPackage::wiresInEachGroup, CSCWireGroupPackage::wireSpacing, and wireSpacing().

                                                :
      theWireGrouping( 0 ), theWireGeometry( 0 ),
      theAlignmentPinToFirstWire( wg.alignmentPinToFirstWire / 10. ) {

     // Pass consecutiveGroups and wiresInConsecutiveGroups
     // directly on to theWireGrouping ctor. These vectors
     // are transient info and can go once ctor is complete.
         
  theWireGrouping = new CSCGangedWireGrouping( wg.consecutiveGroups,
                   wg.wiresInEachGroup, wg.numberOfGroups );

  const float zeroprecision = 1.E-06; // blur zero a bit, for comparisons

  float wireAngleInRadians = wireAngleInDegrees*degree;

  //@@ Conversion from mm to cm
  float wireSpacing = wg.wireSpacing   / 10.; // in cm
  float nw = wg.narrowWidthOfWirePlane / 10.; // in cm
  float ww = wg.wideWidthOfWirePlane   / 10.; // in cm
  float lw = wg.lengthOfWirePlane      / 10.; // in cm

   LogTrace("CSCWireTopology|CSC") <<  
       "CSCWireTopology constructing CSCWireGeometry with:\n" <<
       " wireSpacing = " << wireSpacing*10. << " (mm) " <<
       ", yOfFirstWire = " << yOfFirstWire << " (cm) " << 
     ", wireAngle = " << wireAngleInDegrees << " (deg) = " << wireAngleInRadians << " (rads)" <<
     ", extent: n, w, l = " << nw << ", " << ww << ", " << lw << " (cm)";

  if ( fabs(wireAngleInDegrees) > zeroprecision ) { 
    theWireGeometry = new CSCSlantedWireGeometry( wireSpacing, yOfFirstWire, nw, ww, lw, wireAngleInRadians );
  }
  else {
    theWireGeometry = new CSCNonslantedWireGeometry( wireSpacing, yOfFirstWire, nw, ww, lw );
  }
}

CSCWireTopology::CSCWireTopology

(

const CSCWireTopology &

mewt

)

Copy constructor

Definition at line 57 of file CSCWireTopology.cc.

References CSCWireGrouping::clone(), CSCWireGeometry::clone(), theWireGeometry, and theWireGrouping.

                                                              :
  theAlignmentPinToFirstWire(mewt.theAlignmentPinToFirstWire) {
  if (mewt.theWireGrouping) theWireGrouping = mewt.theWireGrouping->clone();
  else theWireGrouping = 0;
  if (mewt.theWireGeometry) theWireGeometry = mewt.theWireGeometry->clone();
  else theWireGeometry = 0;
  
}

Member Function Documentation

int CSCWireTopology::channel ( const LocalPoint &  p ) const

virtual

'channel' is wire group number from 1 to no. of groups. Return 0 if out-of-range or in a dead region

Implements Topology.

Definition at line 109 of file CSCWireTopology.cc.

References edmIntegrityCheck::group, CSCWireGeometry::nearestWire(), theWireGeometry, theWireGrouping, and CSCWireGrouping::wireGroup().

                                                        {
  int wire = theWireGeometry->nearestWire( p );
  int group = theWireGrouping->wireGroup( wire );
  return group; // 0 means out of range or dead region
}

std::pair< float, float > CSCWireTopology::equationOfWire

(

float

wire

)

const

Return slope and intercept of straight line representing a wire in 2-dim local coordinates.

The return value is a pair p with p.first = m, p.second = c, where y=mx+c.

Definition at line 132 of file CSCWireTopology.cc.

References CSCWireGeometry::equationOfWire(), and theWireGeometry.

Referenced by CSCLayerGeometry::intersectionOfStripAndWire(), and wireValues().

                                                                        {
  return theWireGeometry->equationOfWire( wire );
}

double CSCWireTopology::extentOfWirePlane ( ) const

inline

Extent of wire plane (width normal to wire direction).
Note that for ME11 this distance is not along local y!
cf. lengthOfPlane() which should be the same for all chambers but ME11.

Definition at line 173 of file CSCWireTopology.h.

References numberOfWires(), and wireSpacing().

                                   {
    return wireSpacing() * (numberOfWires() - 1) ; }

bool CSCWireTopology::insideYOfWirePlane

(

float

y

)

const

Returns true if arg falls within y limits of wire plane; false otherwise.

Definition at line 150 of file CSCWireTopology.cc.

References theWireGeometry, and CSCWireGeometry::yLimitsOfWirePlane().

Referenced by CSCLayerGeometry::intersectionOfStripAndWire(), and wireValues().

                                                        {
  // Returns true if arg falls within y limits of wire plane; false otherwise.
      
  std::pair<float, float> ylim = theWireGeometry->yLimitsOfWirePlane();

  if ( y < ylim.first ) {
    return false;
  }
  else if ( y > ylim.second ) {
    return false;
  }
  return true;
}

double CSCWireTopology::lengthOfPlane ( ) const

inline

Length/height of wire plane along long axis of trapezoid (local y direction)

Definition at line 107 of file CSCWireTopology.h.

References CSCWireGeometry::lengthOfPlane(), and theWireGeometry.

Referenced by TrackDetectorAssociator::getTAMuonChamberMatches().

                               {
    return theWireGeometry->lengthOfPlane(); }

LocalError CSCWireTopology::localError ( const MeasurementPoint &  , const MeasurementError &    ) const

virtual

Implements Topology.

Definition at line 91 of file CSCWireTopology.cc.

                                                      {
  edm::LogWarning("CSC") << "CSCWireTopology: localError unimplemented. Don't use it." << "\n";
  return LocalError();
}

LocalPoint CSCWireTopology::localPosition ( const MeasurementPoint &  ) const

virtual

Topology interface, but not implemented for CSCWireTopology (yet!)

Implements Topology.

Definition at line 86 of file CSCWireTopology.cc.

                                                                         {
  edm::LogWarning("CSC") << "CSCWireTopology: localPosition unimplemented. Don't use it." << "\n";
  return LocalPoint();
}

MeasurementError CSCWireTopology::measurementError ( const LocalPoint &  , const LocalError &    ) const

virtual

Implements Topology.

Definition at line 103 of file CSCWireTopology.cc.

                                                 {
  edm::LogWarning("CSC") << "CSCWireTopology: measurementError unimplemented. Don't use it." << "\n";
  return MeasurementError();
}

MeasurementPoint CSCWireTopology::measurementPosition ( const LocalPoint &  ) const

virtual

Implements Topology.

Definition at line 97 of file CSCWireTopology.cc.

                                                 {
  edm::LogWarning("CSC") << "CSCWireTopology: measurementPosition unimplemented. Don't use it." << "\n";
  return MeasurementPoint();
}

float CSCWireTopology::middleWireOfGroup ( int  wireGroup ) const

inline

Middle of wire-group. This is the central wire no. for a group with an odd no. of wires. This is a pseudo-wire no. for a group with an even no. of wires. Accordingly, it is non-integer.

Definition at line 148 of file CSCWireTopology.h.

References CSCWireGrouping::middleWireOfGroup(), theWireGrouping, wireGroup(), x, yOfWireGroup(), and yResolution().

Referenced by CSCLayerGeometry::middleWireOfGroup(), and yOfWireGroup().

                                                 {
    return theWireGrouping->middleWireOfGroup( wireGroup ); }

double CSCWireTopology::narrowWidthOfPlane ( ) const

inline

Width of wire plane at narrow end of trapezoid

Definition at line 95 of file CSCWireTopology.h.

References CSCWireGeometry::narrowWidthOfPlane(), and theWireGeometry.

Referenced by TrackDetectorAssociator::getTAMuonChamberMatches().

                                    {
    return theWireGeometry->narrowWidthOfPlane(); }

int CSCWireTopology::nearestWire ( const LocalPoint &  lp ) const

inlinevirtual

The nearest (virtual) wire to a given LocalPoint. Beware that this wire might not exist or be read out!

Implements WireTopology.

Definition at line 83 of file CSCWireTopology.h.

References CSCWireGeometry::nearestWire(), and theWireGeometry.

Referenced by CSCLayerGeometry::nearestWire().

                                              {
    return theWireGeometry->nearestWire( lp ); }

int CSCWireTopology::numberOfWireGroups ( ) const

inline

How many wire groups

Definition at line 127 of file CSCWireTopology.h.

References CSCWireGrouping::numberOfWireGroups(), and theWireGrouping.

Referenced by CSCLayerGeometry::numberOfWireGroups().

                                 {
    return theWireGrouping->numberOfWireGroups(); }

int CSCWireTopology::numberOfWires ( ) const

inlinevirtual

Wire group interface Total number of (virtual) wires. Some wires may not be implemented in the hardware. This is the number which would fill the region covered by wires, assuming the constant wire spacing.

Implements WireTopology.

Definition at line 121 of file CSCWireTopology.h.

References CSCWireGrouping::numberOfWires(), and theWireGrouping.

Referenced by extentOfWirePlane(), and CSCLayerGeometry::numberOfWires().

                            {
    return theWireGrouping->numberOfWires(); }

int CSCWireTopology::numberOfWiresPerGroup ( int  wireGroup ) const

inline

How many wires in a wiregroup

Definition at line 133 of file CSCWireTopology.h.

References CSCWireGrouping::numberOfWiresPerGroup(), and theWireGrouping.

Referenced by CSCLayerGeometry::numberOfWiresPerGroup().

                                                   {
    return theWireGrouping->numberOfWiresPerGroup( wireGroup ); }

CSCWireTopology & CSCWireTopology::operator=

(

const CSCWireTopology &

mewt

)

Assignment op

Definition at line 66 of file CSCWireTopology.cc.

References CSCWireGrouping::clone(), CSCWireGeometry::clone(), theAlignmentPinToFirstWire, theWireGeometry, and theWireGrouping.

                                                                         {
  if ( &mewt != this ) {
    delete theWireGrouping;
    if ( mewt.theWireGrouping ) 
      theWireGrouping = mewt.theWireGrouping->clone();
    else 
      theWireGrouping = 0;
    
    delete theWireGeometry;
    if ( mewt.theWireGeometry ) 
      theWireGeometry = mewt.theWireGeometry->clone();
    else 
      theWireGeometry = 0;

    theAlignmentPinToFirstWire = mewt.theAlignmentPinToFirstWire;
    
  }
  return *this;
}

float CSCWireTopology::restrictToYOfWirePlane

(

float

y

)

const

Reset input y to lie within bounds of wire plane at top and bottom.

Definition at line 136 of file CSCWireTopology.cc.

References theWireGeometry, y, and CSCWireGeometry::yLimitsOfWirePlane().

Referenced by CSCLayerGeometry::intersectionOfStripAndWire(), and wireValues().

                                                             {
  // Reset y to lie within bounds of wire plane at top and bottom.
  
  std::pair<float, float> ylim = theWireGeometry->yLimitsOfWirePlane();

  if ( y < ylim.first ) {
    y = ylim.first;
  }
  else if ( y > ylim.second ) {
    y = ylim.second;
  }
  return y;
}

double CSCWireTopology::wideWidthOfPlane ( ) const

inline

Width of wire plane at wide end of trapezoid

Definition at line 101 of file CSCWireTopology.h.

References theWireGeometry, and CSCWireGeometry::wideWidthOfPlane().

Referenced by TrackDetectorAssociator::getTAMuonChamberMatches().

                                  {
    return theWireGeometry->wideWidthOfPlane(); }

float CSCWireTopology::wireAngle ( ) const

inlinevirtual

The angle of the wires w.r.t local x axis (in radians)

Implements WireTopology.

Definition at line 76 of file CSCWireTopology.h.

References theWireGeometry, and CSCWireGeometry::wireAngle().

Referenced by FWRecoGeometryESProducer::addCSCGeometry(), TrackDetectorAssociator::getTAMuonChamberMatches(), ValidateGeometry::validateCSCLayerGeometry(), and CSCLayerGeometry::wireAngle().

                          { 
    return theWireGeometry->wireAngle(); }

std::pair< LocalPoint, LocalPoint > CSCWireTopology::wireEnds ( float  wire ) const

inline

Return local (x,y) coordinates of the two ends of a wire across the extent of the wire plane. The returned value is a pair of LocalPoints.

Definition at line 181 of file CSCWireTopology.h.

References theWireGeometry, and CSCWireGeometry::wireEnds().

                                                                 {
    return theWireGeometry->wireEnds( wire ); }

int CSCWireTopology::wireGroup ( int  wire ) const

inline

Wire group containing a given wire

Definition at line 139 of file CSCWireTopology.h.

References theWireGrouping, and CSCWireGrouping::wireGroup().

Referenced by middleWireOfGroup(), and CSCLayerGeometry::wireGroup().

                                {
    return theWireGrouping->wireGroup( wire ); }

float CSCWireTopology::wirePitch ( ) const

inlinevirtual

The wire pitch. This is the wire spacing but old-timers like the word 'pitch'.

Implements WireTopology.

Definition at line 70 of file CSCWireTopology.h.

References wireSpacing().

Referenced by CSCLayerGeometry::wirePitch().

                          {
    return static_cast<float>(wireSpacing()); }

double CSCWireTopology::wireSpacing ( ) const

inline

WireTopology interface The wire spacing (in cm)

Definition at line 63 of file CSCWireTopology.h.

References theWireGeometry, and CSCWireGeometry::wireSpacing().

Referenced by FWRecoGeometryESProducer::addCSCGeometry(), CSCWireTopology(), extentOfWirePlane(), ValidateGeometry::validateCSCLayerGeometry(), wirePitch(), and yResolution().

                             {
    return theWireGeometry->wireSpacing(); }

std::vector<float> CSCWireTopology::wireValues ( float  wire ) const

inline

Return mid-point of a wire in local coordinates, and its length across the chamber volume, in a vector as x, y, length

Definition at line 187 of file CSCWireTopology.h.

References equationOfWire(), insideYOfWirePlane(), restrictToYOfWirePlane(), theWireGeometry, CSCWireGeometry::wireValues(), and y.

Referenced by CSCLayerGeometry::lengthOfWireGroup(), and CSCLayerGeometry::localCenterOfWireGroup().

                                                  {
    return theWireGeometry->wireValues( wire ); }

float CSCWireTopology::yOfWire ( float  wire, float  x = 0.  ) const

inline

Local y of a given wire 'number' (float) at given x

Definition at line 89 of file CSCWireTopology.h.

References theWireGeometry, x, and CSCWireGeometry::yOfWire().

Referenced by TrackDetectorAssociator::getTAMuonChamberMatches(), and CSCLayerGeometry::yOfWire().

                                              {
    return theWireGeometry->yOfWire(wire,x); }

float CSCWireTopology::yOfWireGroup	(	int	wireGroup,
		float	x = 0.
	)		const

Extended interface which 'mixes' WireGrouping and WireGeometry info Local y of a given wire group at given x

Definition at line 115 of file CSCWireTopology.cc.

References middleWireOfGroup(), theWireGeometry, and CSCWireGeometry::yOfWire().

Referenced by middleWireOfGroup(), and CSCLayerGeometry::yOfWireGroup().

                                                                {
   float wire = middleWireOfGroup( wireGroup );
   return theWireGeometry->yOfWire( wire, x );
}

float CSCWireTopology::yResolution

(

int

wireGroup = 1

)

const

The measurement resolution from wire groups (in cm.) This approximates the measurement resolution in the local y direction but may be too small by a factor of up to 1.26 due to stripAngle contributions which are neglected here.

Definition at line 120 of file CSCWireTopology.cc.

References CSCWireGrouping::numberOfWiresPerGroup(), mathSSE::sqrt(), theWireGrouping, and wireSpacing().

Referenced by middleWireOfGroup(), and CSCLayerGeometry::yResolution().

                                                        {
  // Return the resolution in the wire group measurement (in cm).
  // To really be resolution in local y this should be scaled by Sin
  // factors involving strip and wire angles, and also add a contribution
  // from strip measurement (which is negligible w.r.t. wire resolution.)
  // These factors can increase the number here by up to 1.26.

  // Should be improvable for smaller partial wire groups

  return wireSpacing() * theWireGrouping->numberOfWiresPerGroup( wireGroup ) / sqrt(12.);
}

Member Data Documentation

double CSCWireTopology::theAlignmentPinToFirstWire

private

Definition at line 212 of file CSCWireTopology.h.

Referenced by operator=().

CSCWireGeometry* CSCWireTopology::theWireGeometry

private

Definition at line 210 of file CSCWireTopology.h.

Referenced by channel(), CSCWireTopology(), equationOfWire(), insideYOfWirePlane(), lengthOfPlane(), narrowWidthOfPlane(), nearestWire(), operator=(), restrictToYOfWirePlane(), wideWidthOfPlane(), wireAngle(), wireEnds(), wireSpacing(), wireValues(), yOfWire(), yOfWireGroup(), and ~CSCWireTopology().

CSCWireGrouping* CSCWireTopology::theWireGrouping

private

Definition at line 209 of file CSCWireTopology.h.

Referenced by channel(), CSCWireTopology(), middleWireOfGroup(), numberOfWireGroups(), numberOfWires(), numberOfWiresPerGroup(), operator=(), wireGroup(), yResolution(), and ~CSCWireTopology().