TPoint2D Class Reference

A class to represent a point in 2D. More...

#include <TPoint2D.h>

Public Member Functions
	TPoint2D ()
	Constructors.
	TPoint2D (double, double)
	TPoint2D (const HepPoint3D &)
	TPoint2D (const HepVector3D &)
virtual	~TPoint2D ()
	Destructor.
double	x (void) const
double	y (void) const
double	mag (void) const
double	mag2 (void) const
double	phi (void) const
double	x (double)
double	y (double)
double	dot (const TPoint2D &) const
double	cross (const TPoint2D &) const
TPoint2D	unit (void) const
TPoint2D	operator+ (const TPoint2D &) const
TPoint2D	operator- (const TPoint2D &) const
TPoint2D	operator- () const
bool	operator== (const TPoint2D &) const
	TPoint2D ()
	Constructors.
	TPoint2D (double, double)
	TPoint2D (const HepPoint3D &)
	TPoint2D (const HepVector3D &)
virtual	~TPoint2D ()
	Destructor.
double	x (void) const
double	y (void) const
double	mag (void) const
double	mag2 (void) const
double	phi (void) const
double	x (double)
double	y (double)
double	dot (const TPoint2D &) const
double	cross (const TPoint2D &) const
TPoint2D	unit (void) const
TPoint2D	operator+ (const TPoint2D &) const
TPoint2D	operator- (const TPoint2D &) const
TPoint2D	operator- () const
bool	operator== (const TPoint2D &) const

Detailed Description

A class to represent a point in 2D.

Definition at line 37 of file InstallArea/include/TrkReco/TrkReco/TPoint2D.h.

Constructor & Destructor Documentation

TPoint2D() [1/8]

TPoint2D::TPoint2D

(

)

Constructors.

Definition at line 19 of file TPoint2D.cxx.

                   {
    _p[0] = 0.;
    _p[1] = 0.;
}

Referenced by operator+(), operator-(), and unit().

TPoint2D() [2/8]

TPoint2D::TPoint2D	(	double	x,
		double	y
	)

Definition at line 24 of file TPoint2D.cxx.

                                     {
    _p[0] = x;
    _p[1] = y;
}

TPoint2D() [3/8]

TPoint2D::TPoint2D

(

const HepPoint3D &

a

)

Definition at line 29 of file TPoint2D.cxx.

                                       {
    _p[0] = a.x();
    _p[1] = a.y();
}

TPoint2D() [4/8]

TPoint2D::TPoint2D

(

const HepVector3D &

a

)

Definition at line 34 of file TPoint2D.cxx.

                                        {
    _p[0] = a.x();
    _p[1] = a.y();
}

~TPoint2D() [1/2]

TPoint2D::~TPoint2D ( )

virtual

Destructor.

Definition at line 39 of file TPoint2D.cxx.

                    {
}

TPoint2D() [5/8]

TPoint2D::TPoint2D

(

)

Constructors.

TPoint2D() [6/8]

TPoint2D::TPoint2D	(	double	,
		double
	)

TPoint2D() [7/8]

TPoint2D::TPoint2D

(

const HepPoint3D &

)

TPoint2D() [8/8]

TPoint2D::TPoint2D

(

const HepVector3D &

)

~TPoint2D() [2/2]

virtual TPoint2D::~TPoint2D ( )

virtual

Destructor.

Member Function Documentation

cross() [1/2]

double TPoint2D::cross ( const TPoint2D &  a ) const

inline

Definition at line 139 of file InstallArea/include/TrkReco/TrkReco/TPoint2D.h.

                                        {
    return _p[0] * a.y() - a.x() * _p[1];
}

Referenced by TTrackManager::salvageAssociateHits().

cross() [2/2]

double TPoint2D::cross

(

const TPoint2D &

)

const

dot() [1/2]

double TPoint2D::dot ( const TPoint2D &  a ) const

inline

Definition at line 133 of file InstallArea/include/TrkReco/TrkReco/TPoint2D.h.

                                      {
    return _p[0] * a.x() + _p[1] * a.y();
}

Referenced by TTrack::stereoHitForCurl(), and TTrack::szPosition().

dot() [2/2]

double TPoint2D::dot

(

const TPoint2D &

)

const

mag() [1/2]

double TPoint2D::mag ( void  ) const

inline

Definition at line 112 of file InstallArea/include/TrkReco/TrkReco/TPoint2D.h.

                        {
    return sqrt(_p[0] * _p[0] + _p[1] * _p[1]);
}

Referenced by TTrack::stereoHitForCurl(), and TTrack::szPosition().

mag() [2/2]

double TPoint2D::mag

(

void

)

const

mag2() [1/2]

double TPoint2D::mag2 ( void  ) const

inline

Definition at line 118 of file InstallArea/include/TrkReco/TrkReco/TPoint2D.h.

                         {
    return _p[0] * _p[0] + _p[1] * _p[1];
}

mag2() [2/2]

double TPoint2D::mag2

(

void

)

const

operator+() [1/2]

TPoint2D TPoint2D::operator+ ( const TPoint2D &  a ) const

inline

Definition at line 145 of file InstallArea/include/TrkReco/TrkReco/TPoint2D.h.

                                              {
    return TPoint2D(_p[0] + a.x(), _p[1] + a.y());
}

operator+() [2/2]

TPoint2D TPoint2D::operator+

(

const TPoint2D &

)

const

operator-() [1/4]

TPoint2D TPoint2D::operator- ( ) const

inline

Definition at line 157 of file InstallArea/include/TrkReco/TrkReco/TPoint2D.h.

                            {
    return TPoint2D(- _p[0], - _p[1]);
}

operator-() [2/4]

TPoint2D TPoint2D::operator-

(

)

const

operator-() [3/4]

TPoint2D TPoint2D::operator- ( const TPoint2D &  a ) const

inline

Definition at line 151 of file InstallArea/include/TrkReco/TrkReco/TPoint2D.h.

                                              {
    return TPoint2D(_p[0] - a.x(), _p[1] - a.y());
}

operator-() [4/4]

TPoint2D TPoint2D::operator-

(

const TPoint2D &

)

const

operator==() [1/2]

bool TPoint2D::operator== ( const TPoint2D &  a ) const

inline

Definition at line 163 of file InstallArea/include/TrkReco/TrkReco/TPoint2D.h.

                                               {
    if (a.x() == _p[0] && a.y() == _p[1]) return true;
    return false;
}

operator==() [2/2]

bool TPoint2D::operator==

(

const TPoint2D &

)

const

phi() [1/2]

double TPoint2D::phi ( void  ) const

inline

Definition at line 124 of file InstallArea/include/TrkReco/TrkReco/TPoint2D.h.

                        {
    if (_p[0] == 0.0 && _p[1] == 0.0) return 0.;
    double a = atan2(_p[1], _p[0]);
    if (a > 0) return a;
    return a + 2. * M_PI;
}

phi() [2/2]

double TPoint2D::phi

(

void

)

const

unit() [1/2]

TPoint2D TPoint2D::unit ( void  ) const

inline

Definition at line 170 of file InstallArea/include/TrkReco/TrkReco/TPoint2D.h.

                         {
    double sum2 = _p[0] * _p[0] + _p[1] * _p[1];
    if (sum2 == 0.) return TPoint2D(0., 0.);
    double sum = sqrt(sum2);
    return TPoint2D(_p[0] / sum, _p[1] / sum);
}

unit() [2/2]

TPoint2D TPoint2D::unit

(

void

)

const

x() [1/4]

double TPoint2D::x ( double  a )

inline

Definition at line 100 of file InstallArea/include/TrkReco/TrkReco/TPoint2D.h.

                    {
    return _p[0] = a;
}

x() [2/4]

double TPoint2D::x

(

double

)

x() [3/4]

double TPoint2D::x ( void  ) const

inline

Definition at line 88 of file InstallArea/include/TrkReco/TrkReco/TPoint2D.h.

                      {
    return _p[0];
}

Referenced by cross(), TLine2D::distance(), dot(), TLine2D::fit(), operator+(), operator-(), operator<<(), operator==(), TTrack::stereoHitForCurl(), and TPoint2D().

x() [4/4]

double TPoint2D::x

(

void

)

const

y() [1/4]

double TPoint2D::y ( double  a )

inline

Definition at line 106 of file InstallArea/include/TrkReco/TrkReco/TPoint2D.h.

                    {
    return _p[1] = a;
}

y() [2/4]

double TPoint2D::y

(

double

)

y() [3/4]

double TPoint2D::y ( void  ) const

inline

Definition at line 94 of file InstallArea/include/TrkReco/TrkReco/TPoint2D.h.

                      {
    return _p[1];
}

Referenced by cross(), TLine2D::distance(), dot(), TLine2D::fit(), operator+(), operator-(), operator<<(), operator==(), TTrack::stereoHitForCurl(), and TPoint2D().

y() [4/4]

double TPoint2D::y

(

void

)

const

---

The documentation for this class was generated from the following files:

• InstallArea/include/TrkReco/TrkReco/TPoint2D.h
• Reconstruction/TrkReco/TrkReco-00-08-59-patch4-slc6tag/TrkReco/TPoint2D.h
• TPoint2D.cxx