L1MuonPixelTrackFitter::Circle Class Reference

#include <L1MuonPixelTrackFitter.h>

Public Types
typedef Point3DBase< long double, GlobalTag >	Point
typedef Vector3DBase< long double, GlobalTag >	Vector

Public Member Functions
const Point &	center () const
	Circle ()
	Circle (const GlobalPoint &h1, const GlobalPoint &h2, double curvature)
const long double &	curvature () const
bool	isValid () const

Private Attributes
Point	theCenter
long double	theCurvature
bool	theValid

Detailed Description

Definition at line 29 of file L1MuonPixelTrackFitter.h.

Member Typedef Documentation

Point

typedef Point3DBase<long double, GlobalTag> L1MuonPixelTrackFitter::Circle::Point

Definition at line 32 of file L1MuonPixelTrackFitter.h.

Vector

typedef Vector3DBase<long double, GlobalTag> L1MuonPixelTrackFitter::Circle::Vector

Definition at line 31 of file L1MuonPixelTrackFitter.h.

Constructor & Destructor Documentation

Circle() [1/2]

L1MuonPixelTrackFitter::Circle::Circle ( )

inline

Definition at line 33 of file L1MuonPixelTrackFitter.h.

: theValid(false) {}

Circle() [2/2]

L1MuonPixelTrackFitter::Circle::Circle ( const GlobalPoint &  h1, const GlobalPoint &  h2, double  curvature  )

inline

Definition at line 34 of file L1MuonPixelTrackFitter.h.

                                                                           : theCurvature(curvature) {
      Point p1(h1);
      Point p2(h2);
      Vector dp = (p2 - p1) / 2.;
      int charge = theCurvature > 0 ? 1 : -1;
      Vector ec = charge * dp.cross(Vector(0, 0, 1)).unit();
      long double dist_tmp = 1. / theCurvature / theCurvature - dp.perp2();
      theValid = (dist_tmp > 0.);
      theCenter = p1 + dp + ec * sqrt(std::abs(dist_tmp));
    }

References funct::abs(), ALCARECOTkAlJpsiMuMu_cff::charge, Calorimetry_cff::dp, p1, p2, mathSSE::sqrt(), theCenter, theCurvature, and theValid.

Member Function Documentation

center()

const Point& L1MuonPixelTrackFitter::Circle::center ( ) const

inline

Definition at line 45 of file L1MuonPixelTrackFitter.h.

{ return theCenter; }

References theCenter.

Referenced by L1MuonPixelTrackFitter::valPhi(), and L1MuonPixelTrackFitter::valTip().

curvature()

const long double& L1MuonPixelTrackFitter::Circle::curvature ( ) const

inline

Definition at line 46 of file L1MuonPixelTrackFitter.h.

{ return theCurvature; }

References theCurvature.

isValid()

bool L1MuonPixelTrackFitter::Circle::isValid ( void  ) const

inline

Definition at line 44 of file L1MuonPixelTrackFitter.h.

{ return theValid; }

References theValid.

Referenced by ntupleDataFormat._Object::_checkIsValid(), and core.AutoHandle.AutoHandle::ReallyLoad().

Member Data Documentation

theCenter

Point L1MuonPixelTrackFitter::Circle::theCenter

private

Definition at line 51 of file L1MuonPixelTrackFitter.h.

Referenced by center(), and Circle().

theCurvature

long double L1MuonPixelTrackFitter::Circle::theCurvature

private

Definition at line 50 of file L1MuonPixelTrackFitter.h.

Referenced by Circle(), and curvature().

theValid

bool L1MuonPixelTrackFitter::Circle::theValid

private

Definition at line 49 of file L1MuonPixelTrackFitter.h.

Referenced by Circle(), and isValid().