RVector2D Class Reference

#include <RVector2D.hh>

Inheritance diagram for RVector2D:

Public Member Functions
	RVector2D ()
	RVector2D (const Double_t x, const Double_t y)
	RVector2D (const Double_t p[])
	RVector2D (const TPoints &p)
	RVector2D (const RVector2D &p)
RVector2D &	operator= (const RVector2D &p)
RVector2D &	operator= (const TPoints &p)
virtual	~RVector2D ()
Double_t	X () const
Double_t	Y () const
Double_t	operator[] (const u_int n) const
RVector2D	operator+ () const
RVector2D	operator- () const
RVector2D	operator+= (const RVector2D &v)
RVector2D	operator-= (const RVector2D &v)
RVector2D	operator*= (const Double_t r)
RVector2D	operator/= (const Double_t r)
Double_t	operator* (const RVector2D &v) const
Double_t	operator^ (const RVector2D &v) const
RVector2D	operator+ (const RVector2D &v) const
RVector2D	operator- (const RVector2D &v) const
RVector2D	operator* (const Double_t r) const
RVector2D	operator/ (const Double_t r) const
Double_t	LengthSquare () const
Double_t	Length () const
RVector2D	Unit () const
Double_t	Angle (const RVector2D &v) const
Double_t	DistanceTo (const TPoints &p) const
Double_t	DistanceTo (const Double_t x, const Double_t y) const
	ClassDef (RVector2D, 0)

Static Public Attributes
static const RVector2D	null = RVector2D (0., 0.)
	Vecteur nul.
static const RVector2D	x = RVector2D (1., 0.)
	Vecteur unitaire x.
static const RVector2D	y = RVector2D (0., 1.)
	Vecteur unitaire y.
static const Double_t	zero = 1.e-10
	Limite de calcul (approximation du 0)

Private Member Functions
	GObject (RVector2D)

Detailed Description

Classe élargissant la classe ROOT TPoints avec des fonctions d'algèbre à 2 dimensions

Les classes RVector2D et RPoint2D sont strictement équivalentes.

Constructor & Destructor Documentation

RVector2D::RVector2D ( )

inline

Default constructor: null vector.

RVector2D::RVector2D ( const Double_t  x, const Double_t  y  )

inline

Constructor from coordinates.

Parameters

x	X coordinate
y	Y coordinate

RVector2D::RVector2D ( const Double_t  p[] )

inline

Constructor from coordinates array.

Parameters

p	coordinates array (at least of size 2)

RVector2D::RVector2D ( const TPoints &  p )

inline

Constructor from a TPoints object.

Parameters

p	point to copy

RVector2D::RVector2D ( const RVector2D &  p )

inline

Copy constructor.

Parameters

p	point to copy

RVector2D::~RVector2D ( )

inlinevirtual

Destructor.

Member Function Documentation

RVector2D::GObject ( RVector2D  )

private

Macro from GCpp library that defines the following functions:

• ClassName(): return the real class name of the object
• StaticClassName(): return the used class name of the object (that may be a base class of the real object).
• IsInstanceOf<T>(): return true if the current object is an instance of the template class name argument
• Clone(): return an allocated copy of the object.

RVector2D & RVector2D::operator=

(

const RVector2D &

p

)

Affectation operator.

Parameters

p	point to copy

RVector2D & RVector2D::operator=

(

const TPoints &

p

)

Affectation operator.

Parameters

p	point to copy

Double_t RVector2D::X ( ) const

inline

Get X coordinate.

Referenced by RContourBaseEllipse::GetAngle(), and RMatrix2D::RMatrix2D().

Double_t RVector2D::Y ( ) const

inline

Get Y coordinate.

Referenced by RContourBaseEllipse::GetAngle(), and RMatrix2D::RMatrix2D().

Double_t RVector2D::operator[]

(

const u_int

n

)

const

Operator []: if index is 0 or 1, returns X or Y, else it causes an error.

Parameters

n

index

RVector2D RVector2D::operator+ ( ) const

inline

Unary sign operator +.

RVector2D RVector2D::operator- ( ) const

inline

Unary sign operator -.

RVector2D RVector2D::operator+= ( const RVector2D &  v )

inline

Addition and affectation.

Parameters

v	operand vector

RVector2D RVector2D::operator-= ( const RVector2D &  v )

inline

Subtraction and affectation.

Parameters

v	operand vector

RVector2D RVector2D::operator*= ( const Double_t  r )

inline

Multiplication by scalar value and affectation.

Parameters

r	real value (scalar)

RVector2D RVector2D::operator/= ( const Double_t  r )

inline

Division by a scalar value and affectation.

Parameters

r	real value (scalar)

Double_t RVector2D::operator* ( const RVector2D &  v ) const

inline

Scalar product.

Parameters

v	operand vector

Double_t RVector2D::operator^ ( const RVector2D &  v ) const

inline

Vectorial product: in 2D, it computes the 2 vectors determinant.

Parameters

v	operand vector

RVector2D RVector2D::operator+ ( const RVector2D &  v ) const

inline

Vectors addition.

Parameters

v	operand vector

RVector2D RVector2D::operator- ( const RVector2D &  v ) const

inline

Vectors subtraction.

Parameters

v	operand vector

RVector2D RVector2D::operator* ( const Double_t  r ) const

inline

Multiplication by a scalar value.

Parameters

r	real value (scalar)

RVector2D RVector2D::operator/ ( const Double_t  r ) const

inline

Division by a scalar value.

Parameters

r	real value (scalar)

Double_t RVector2D::LengthSquare ( ) const

inline

Vector norm.

Double_t RVector2D::Length ( ) const

inline

Squared vector norm.

Referenced by RContourBaseEllipse::Compare(), RGContourEdit::DrawAssociatedObject(), and Unit().

RVector2D RVector2D::Unit ( ) const

inline

Unit vector.

References Length().

Double_t RVector2D::Angle

(

const RVector2D &

v

)

const

Get the angle (in rad) between current vector and the argument vector.

Parameters

v	argument vector

References zero.

Referenced by RContourBasePolygon::CheckPoint().

Double_t RVector2D::DistanceTo

(

const TPoints &

p

)

const

Return the distance between current point and another point p.

Parameters

p

point

Double_t RVector2D::DistanceTo	(	const Double_t	x,
		const Double_t	y
	)		const

Return the distance between current point and another point (x,y).

Parameters

x	coordinate
y	coordinate

References x, and y.

RVector2D::ClassDef	(	RVector2D	,
		0
	)

For ROOT dictionary.

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

• RVector2D.hh
• RVector2D.icc
• RVector2D.cpp