CSCWireGeometry Class Reference

#include <CSCWireGeometry.h>

Inheritance diagram for CSCWireGeometry:

Public Member Functions
virtual CSCWireGeometry *	clone () const =0
	CSCWireGeometry (double wireSpacing, double yOfFirstWire, double narrowWidthOfPlane, double wideWidthOfPlane, double lengthOfPlane)
std::pair< float, float >	equationOfWire (float wire) const
LocalPoint	intersection (float m1, float c1, float m2, float c2) const
double	lengthOfPlane () const
double	narrowWidthOfPlane () const
virtual int	nearestWire (const LocalPoint &lp) const =0
double	wideWidthOfPlane () const
virtual float	wireAngle () const =0
std::pair< LocalPoint, LocalPoint >	wireEnds (float wire) const
double	wireSpacing () const
std::vector< float >	wireValues (float wire) const
std::pair< float, float >	yLimitsOfWirePlane () const
double	yOfFirstWire () const
virtual float	yOfWire (float wire, float x=0.) const =0
virtual	~CSCWireGeometry ()

Private Attributes
double	theLengthOfPlane
double	theNarrowWidthOfPlane
double	theWideWidthOfPlane
double	theWireSpacing
double	theYOfFirstWire

Detailed Description

An ABC defining interface for geometry related to angle which wires of a detector modelled by a WireTopology make with the local x axis.

Author

Tim Cox

Definition at line 17 of file CSCWireGeometry.h.

Constructor & Destructor Documentation

virtual CSCWireGeometry::~CSCWireGeometry ( )

inlinevirtual

Definition at line 19 of file CSCWireGeometry.h.

{}

CSCWireGeometry::CSCWireGeometry ( double  wireSpacing, double  yOfFirstWire, double  narrowWidthOfPlane, double  wideWidthOfPlane, double  lengthOfPlane  )

inline

Constructor from wire spacing (in cm)

Definition at line 24 of file CSCWireGeometry.h.

                                                                                :
     theWireSpacing( wireSpacing ), theYOfFirstWire( yOfFirstWire ),
     theNarrowWidthOfPlane( narrowWidthOfPlane ), theWideWidthOfPlane( wideWidthOfPlane ),
     theLengthOfPlane( lengthOfPlane ) {}

Member Function Documentation

virtual CSCWireGeometry* CSCWireGeometry::clone ( ) const

pure virtual

Allow proper copying of derived classes via base pointer

Implemented in CSCNonslantedWireGeometry, and CSCSlantedWireGeometry.

Referenced by CSCWireTopology::CSCWireTopology(), and CSCWireTopology::operator=().

std::pair< float, float > CSCWireGeometry::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 176 of file CSCWireGeometry.cc.

Referenced by CSCWireTopology::equationOfWire().

LocalPoint CSCWireGeometry::intersection	(	float	m1,
		float	c1,
		float	m2,
		float	c2
	)		const

2D point of intersection of two straight lines defined by
y = m1*x + c1 and y = m2*x + c2
(in local coordinates x, y)

Definition at line 7 of file CSCWireGeometry.cc.

double CSCWireGeometry::lengthOfPlane ( ) const

inline

Extent of wire plane along long axis of trapezoid

Definition at line 57 of file CSCWireGeometry.h.

References theLengthOfPlane.

                               {
    return theLengthOfPlane; }

double CSCWireGeometry::narrowWidthOfPlane ( ) const

inline

Extent of wire plane at narrow end of trapezoid

Definition at line 45 of file CSCWireGeometry.h.

References theNarrowWidthOfPlane.

                                    {
    return theNarrowWidthOfPlane; }

virtual int CSCWireGeometry::nearestWire ( const LocalPoint &  lp ) const

pure virtual

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

Implemented in CSCNonslantedWireGeometry, and CSCSlantedWireGeometry.

Referenced by CSCWireTopology::channel().

double CSCWireGeometry::wideWidthOfPlane ( ) const

inline

Extent of wire plane at wide end of trapezoid

Definition at line 51 of file CSCWireGeometry.h.

References theWideWidthOfPlane.

                                  {
    return theWideWidthOfPlane; }

virtual float CSCWireGeometry::wireAngle ( ) const

pure virtual

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

Implemented in CSCNonslantedWireGeometry, and CSCSlantedWireGeometry.

std::pair< LocalPoint, LocalPoint > CSCWireGeometry::wireEnds

(

float

wire

)

const

Return 2-dim local coords of the two ends of a wire

The returned value is a pair of LocalPoints.

Definition at line 35 of file CSCWireGeometry.cc.

double CSCWireGeometry::wireSpacing ( ) const

inline

The spacing between wires (cm)

Definition at line 33 of file CSCWireGeometry.h.

References theWireSpacing.

Referenced by CSCSlantedWireGeometry::nearestWire(), CSCNonslantedWireGeometry::nearestWire(), CSCSlantedWireGeometry::yOfWire(), and CSCNonslantedWireGeometry::yOfWire().

                             {
    return theWireSpacing; }

std::vector< float > CSCWireGeometry::wireValues

(

float

wire

)

const

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 18 of file CSCWireGeometry.cc.

std::pair< float, float > CSCWireGeometry::yLimitsOfWirePlane

(

)

const

Return pair containing y extremes of wire-plane: p.first = low y, p.second= high y

This is supposed to approximate the 'sensitive' region covered by wires (and strips) but there is no sophisticated handling of edge effects, or attempt to estimate a precise region overlapped by both wires and strips.

Definition at line 197 of file CSCWireGeometry.cc.

Referenced by CSCWireTopology::insideYOfWirePlane(), and CSCWireTopology::restrictToYOfWirePlane().

double CSCWireGeometry::yOfFirstWire ( ) const

inline

The local y of the first wire

Definition at line 39 of file CSCWireGeometry.h.

References theYOfFirstWire.

Referenced by CSCNonslantedWireGeometry::nearestWire(), and CSCNonslantedWireGeometry::yOfWire().

                              {
    return theYOfFirstWire; }

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

pure virtual

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

Implemented in CSCNonslantedWireGeometry, and CSCSlantedWireGeometry.

Referenced by CSCWireTopology::yOfWireGroup().

Member Data Documentation

double CSCWireGeometry::theLengthOfPlane

private

Definition at line 119 of file CSCWireGeometry.h.

Referenced by lengthOfPlane().

double CSCWireGeometry::theNarrowWidthOfPlane

private

Definition at line 117 of file CSCWireGeometry.h.

Referenced by narrowWidthOfPlane().

double CSCWireGeometry::theWideWidthOfPlane

private

Definition at line 118 of file CSCWireGeometry.h.

Referenced by wideWidthOfPlane().

double CSCWireGeometry::theWireSpacing

private

Definition at line 115 of file CSCWireGeometry.h.

Referenced by wireSpacing().

double CSCWireGeometry::theYOfFirstWire

private

Definition at line 116 of file CSCWireGeometry.h.

Referenced by yOfFirstWire().