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 27 of file L1MuonPixelTrackFitter.h.

Member Typedef Documentation

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

Definition at line 30 of file L1MuonPixelTrackFitter.h.

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

Definition at line 29 of file L1MuonPixelTrackFitter.h.

Constructor & Destructor Documentation

L1MuonPixelTrackFitter::Circle::Circle ( )

inline

Definition at line 31 of file L1MuonPixelTrackFitter.h.

: theValid(false) {}

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

inline

Definition at line 32 of file L1MuonPixelTrackFitter.h.

References DeDxDiscriminatorTools::charge(), Vector3DBase< T, FrameTag >::cross(), p1, p2, PV3DBase< T, PVType, FrameType >::perp2(), mathSSE::sqrt(), theCenter, theCurvature, and theValid.

                                                                          :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( fabs(dist_tmp ) );
    }

Member Function Documentation

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

inline

Definition at line 40 of file L1MuonPixelTrackFitter.h.

References theCenter.

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

{ return theCenter; }

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

inline

Definition at line 41 of file L1MuonPixelTrackFitter.h.

References theCurvature.

{ return theCurvature; }

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

inline

Definition at line 39 of file L1MuonPixelTrackFitter.h.

References theValid.

{ return theValid; }

Member Data Documentation

Point L1MuonPixelTrackFitter::Circle::theCenter

private

Definition at line 45 of file L1MuonPixelTrackFitter.h.

Referenced by center(), and Circle().

long double L1MuonPixelTrackFitter::Circle::theCurvature

private

Definition at line 44 of file L1MuonPixelTrackFitter.h.

Referenced by Circle(), and curvature().

bool L1MuonPixelTrackFitter::Circle::theValid

private

Definition at line 43 of file L1MuonPixelTrackFitter.h.

Referenced by Circle(), and isValid().