Attention

TVector2 is a legacy class. It is slower and worse for serialization than the recommended superior alternative ROOT::Math::XYVector.

More details can be found in the documentation of the Physics Vectors package.

TVector2 is a general two vector class, which can be used for the description of different vectors in 2D.

Definition at line 18 of file TVector2.h.

Public Types
typedef Double_t	Scalar

Public Types inherited from TObject
enum	{ kIsOnHeap = 0x01000000 , kNotDeleted = 0x02000000 , kZombie = 0x04000000 , kInconsistent = 0x08000000 , kBitMask = 0x00ffffff }

enum	{ kSingleKey = (1ULL << ( 0 )) , kOverwrite = (1ULL << ( 1 )) , kWriteDelete = (1ULL << ( 2 )) }

enum	EDeprecatedStatusBits { kObjInCanvas = (1ULL << ( 3 )) }

enum	EStatusBits { kCanDelete = (1ULL << ( 0 )) , kMustCleanup = (1ULL << ( 3 )) , kIsReferenced = (1ULL << ( 4 )) , kHasUUID = (1ULL << ( 5 )) , kCannotPick = (1ULL << ( 6 )) , kNoContextMenu = (1ULL << ( 8 )) , kInvalidObject = (1ULL << ( 13 )) }

Public Member Functions
	TVector2 ()
	Constructor.

	TVector2 (const TVector2 &)=default

	TVector2 (Double_t *s)
	Constructor.

	TVector2 (Double_t x0, Double_t y0)
	Constructor.

	~TVector2 () override

Double_t	DeltaPhi (const TVector2 &v) const

TClass *	IsA () const override

Double_t	Mod () const
	Return modulo of this vector.

Double_t	Mod2 () const

TVector2	Norm (const TVector2 &v) const

TVector2 &	operator*= (Double_t s)

Double_t	operator*= (TVector2 const &v)

TVector2 &	operator+= (TVector2 const &v)

TVector2 &	operator-= (TVector2 const &v)

TVector2 &	operator/= (Double_t s)

TVector2 &	operator= (TVector2 const &v)

TVector2	Ort () const

Double_t	Phi () const
	Return vector phi.

void	Print (Option_t *option="") const override
	This method must be overridden when a class wants to print itself.

TVector2	Proj (const TVector2 &v) const

Double_t	Px () const

Double_t	Py () const

TVector2	Rotate (Double_t phi) const
	Rotation by phi.

void	Set (const TVector2 &v)

void	Set (Double_t x0, Double_t y0)

void	Set (float x0, float y0)

void	SetMagPhi (Double_t mag, Double_t phi)
	Set vector using mag and phi.

void	SetX (Double_t x0)

void	SetY (Double_t y0)

void	Streamer (TBuffer &) override
	Stream an object of class TVector2.

void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)

TVector2	Unit () const
	Return module normalized to 1.

Double_t	X () const

Double_t	Y () const

Public Member Functions inherited from TObject
	TObject ()
	TObject constructor.

	TObject (const TObject &object)
	TObject copy ctor.

virtual	~TObject ()
	TObject destructor.

void	AbstractMethod (const char *method) const
	Use this method to implement an "abstract" method that you don't want to leave purely abstract.

virtual void	AppendPad (Option_t *option="")
	Append graphics object to current pad.

virtual void	Browse (TBrowser *b)
	Browse object. May be overridden for another default action.

ULong_t	CheckedHash ()
	Check and record whether this class has a consistent Hash/RecursiveRemove setup (*) and then return the regular Hash value for this object.

virtual const char *	ClassName () const
	Returns name of class to which the object belongs.

virtual void	Clear (Option_t *="")

virtual TObject *	Clone (const char *newname="") const
	Make a clone of an object using the Streamer facility.

virtual Int_t	Compare (const TObject *obj) const
	Compare abstract method.

virtual void	Copy (TObject &object) const
	Copy this to obj.

virtual void	Delete (Option_t *option="")
	Delete this object.

virtual Int_t	DistancetoPrimitive (Int_t px, Int_t py)
	Computes distance from point (px,py) to the object.

virtual void	Draw (Option_t *option="")
	Default Draw method for all objects.

virtual void	DrawClass () const
	Draw class inheritance tree of the class to which this object belongs.

virtual TObject *	DrawClone (Option_t *option="") const
	Draw a clone of this object in the current selected pad with: `gROOT->SetSelectedPad(c1)`.

virtual void	Dump () const
	Dump contents of object on stdout.

virtual void	Error (const char method, const char msgfmt,...) const
	Issue error message.

virtual void	Execute (const char method, const char params, Int_t *error=nullptr)
	Execute method on this object with the given parameter string, e.g.

virtual void	Execute (TMethod method, TObjArray params, Int_t *error=nullptr)
	Execute method on this object with parameters stored in the TObjArray.

virtual void	ExecuteEvent (Int_t event, Int_t px, Int_t py)
	Execute action corresponding to an event at (px,py).

virtual void	Fatal (const char method, const char msgfmt,...) const
	Issue fatal error message.

virtual TObject *	FindObject (const char *name) const
	Must be redefined in derived classes.

virtual TObject *	FindObject (const TObject *obj) const
	Must be redefined in derived classes.

virtual Option_t *	GetDrawOption () const
	Get option used by the graphics system to draw this object.

virtual const char *	GetIconName () const
	Returns mime type name of object.

virtual const char *	GetName () const
	Returns name of object.

virtual char *	GetObjectInfo (Int_t px, Int_t py) const
	Returns string containing info about the object at position (px,py).

virtual Option_t *	GetOption () const

virtual const char *	GetTitle () const
	Returns title of object.

virtual UInt_t	GetUniqueID () const
	Return the unique object id.

virtual Bool_t	HandleTimer (TTimer *timer)
	Execute action in response of a timer timing out.

virtual ULong_t	Hash () const
	Return hash value for this object.

Bool_t	HasInconsistentHash () const
	Return true is the type of this object is known to have an inconsistent setup for Hash and RecursiveRemove (i.e.

virtual void	Info (const char method, const char msgfmt,...) const
	Issue info message.

virtual Bool_t	InheritsFrom (const char *classname) const
	Returns kTRUE if object inherits from class "classname".

virtual Bool_t	InheritsFrom (const TClass *cl) const
	Returns kTRUE if object inherits from TClass cl.

virtual void	Inspect () const
	Dump contents of this object in a graphics canvas.

void	InvertBit (UInt_t f)

Bool_t	IsDestructed () const
	IsDestructed.

virtual Bool_t	IsEqual (const TObject *obj) const
	Default equal comparison (objects are equal if they have the same address in memory).

virtual Bool_t	IsFolder () const
	Returns kTRUE in case object contains browsable objects (like containers or lists of other objects).

R__ALWAYS_INLINE Bool_t	IsOnHeap () const

virtual Bool_t	IsSortable () const

R__ALWAYS_INLINE Bool_t	IsZombie () const

virtual void	ls (Option_t *option="") const
	The ls function lists the contents of a class on stdout.

void	MayNotUse (const char *method) const
	Use this method to signal that a method (defined in a base class) may not be called in a derived class (in principle against good design since a child class should not provide less functionality than its parent, however, sometimes it is necessary).

virtual Bool_t	Notify ()
	This method must be overridden to handle object notification (the base implementation is no-op).

void	Obsolete (const char method, const char asOfVers, const char *removedFromVers) const
	Use this method to declare a method obsolete.

void	operator delete (void *ptr)
	Operator delete.

void	operator delete (void ptr, void vp)
	Only called by placement new when throwing an exception.

void	operator delete[] (void *ptr)
	Operator delete [].

void	operator delete[] (void ptr, void vp)
	Only called by placement new[] when throwing an exception.

void *	operator new (size_t sz)

void *	operator new (size_t sz, void *vp)

void *	operator new[] (size_t sz)

void *	operator new[] (size_t sz, void *vp)

TObject &	operator= (const TObject &rhs)
	TObject assignment operator.

virtual void	Paint (Option_t *option="")
	This method must be overridden if a class wants to paint itself.

virtual void	Pop ()
	Pop on object drawn in a pad to the top of the display list.

virtual Int_t	Read (const char *name)
	Read contents of object with specified name from the current directory.

virtual void	RecursiveRemove (TObject *obj)
	Recursively remove this object from a list.

void	ResetBit (UInt_t f)

virtual void	SaveAs (const char filename="", Option_t option="") const
	Save this object in the file specified by filename.

virtual void	SavePrimitive (std::ostream &out, Option_t *option="")
	Save a primitive as a C++ statement(s) on output stream "out".

void	SetBit (UInt_t f)

void	SetBit (UInt_t f, Bool_t set)
	Set or unset the user status bits as specified in f.

virtual void	SetDrawOption (Option_t *option="")
	Set drawing option for object.

virtual void	SetUniqueID (UInt_t uid)
	Set the unique object id.

void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)

virtual void	SysError (const char method, const char msgfmt,...) const
	Issue system error message.

R__ALWAYS_INLINE Bool_t	TestBit (UInt_t f) const

Int_t	TestBits (UInt_t f) const

virtual void	UseCurrentStyle ()
	Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked.

virtual void	Warning (const char method, const char msgfmt,...) const
	Issue warning message.

virtual Int_t	Write (const char *name=nullptr, Int_t option=0, Int_t bufsize=0)
	Write this object to the current directory.

virtual Int_t	Write (const char *name=nullptr, Int_t option=0, Int_t bufsize=0) const
	Write this object to the current directory.

Static Public Member Functions
static TClass *	Class ()

static const char *	Class_Name ()

static constexpr Version_t	Class_Version ()

static const char *	DeclFileName ()

static Double_t	Phi_0_2pi (Double_t x)
	Returns phi angle in the interval [0,2*PI)

static Double_t	Phi_mpi_pi (Double_t x)
	Returns phi angle in the interval [-PI,PI)

Static Public Member Functions inherited from TObject
static TClass *	Class ()

static const char *	Class_Name ()

static constexpr Version_t	Class_Version ()

static const char *	DeclFileName ()

static Longptr_t	GetDtorOnly ()
	Return destructor only flag.

static Bool_t	GetObjectStat ()
	Get status of object stat flag.

static void	SetDtorOnly (void *obj)
	Set destructor only flag.

static void	SetObjectStat (Bool_t stat)
	Turn on/off tracking of objects in the TObjectTable.

Protected Attributes
Double_t	fX

Double_t	fY

Friends
Double_t	operator* (const TVector2 &, const TVector2 &)

TVector2	operator* (const TVector2 &, Double_t)

TVector2	operator* (Double_t, const TVector2 &)

TVector2	operator+ (const TVector2 &, const TVector2 &)

TVector2	operator+ (const TVector2 &, Double_t)

TVector2	operator+ (Double_t, const TVector2 &)

TVector2	operator- (const TVector2 &, const TVector2 &)

TVector2	operator- (const TVector2 &, Double_t)

TVector2	operator/ (const TVector2 &, Double_t)

Double_t	operator^ (const TVector2 &, const TVector2 &)

Additional Inherited Members
Protected Types inherited from TObject
enum	{ kOnlyPrepStep = (1ULL << ( 3 )) }

Protected Member Functions inherited from TObject
virtual void	DoError (int level, const char location, const char fmt, va_list va) const
	Interface to ErrorHandler (protected).

void	MakeZombie ()

#include <TVector2.h>

Inheritance diagram for TVector2:

[legend]

Member Typedef Documentation

◆ Scalar

typedef Double_t TVector2::Scalar

Definition at line 31 of file TVector2.h.

Constructor & Destructor Documentation

◆ TVector2() [1/4]

TVector2::TVector2 ( )

Constructor.

Definition at line 39 of file TVector2.cxx.

◆ TVector2() [2/4]

TVector2::TVector2 ( const TVector2 & )

default

◆ TVector2() [3/4]

TVector2::TVector2 ( Double_t * s )

Constructor.

Definition at line 48 of file TVector2.cxx.

◆ TVector2() [4/4]

TVector2::TVector2	(	Double_t	x0,
		Double_t	y0
	)

Constructor.

Definition at line 57 of file TVector2.cxx.

◆ ~TVector2()

TVector2::~TVector2 ( )

override

Definition at line 65 of file TVector2.cxx.

Member Function Documentation

◆ Class()

static TClass * TVector2::Class ( )

static

Returns: TClass describing this class

◆ Class_Name()

static const char * TVector2::Class_Name ( )

static

Returns: Name of this class

◆ Class_Version()

static constexpr Version_t TVector2::Class_Version ( )

inlinestaticconstexpr

Returns: Version of this class

Definition at line 108 of file TVector2.h.

◆ DeclFileName()

static const char * TVector2::DeclFileName ( )

inlinestatic

Returns: Name of the file containing the class declaration

Definition at line 108 of file TVector2.h.

◆ DeltaPhi()

Double_t TVector2::DeltaPhi ( const TVector2 & v ) const

inline

Definition at line 167 of file TVector2.h.

◆ IsA()

TClass * TVector2::IsA ( ) const

inlineoverridevirtual

Returns: TClass describing current object

Reimplemented from TObject.

Definition at line 108 of file TVector2.h.

◆ Mod()

Double_t TVector2::Mod ( ) const

Return modulo of this vector.

Definition at line 72 of file TVector2.cxx.

◆ Mod2()

Double_t TVector2::Mod2 ( ) const

inline

Definition at line 68 of file TVector2.h.

◆ Norm()

TVector2 TVector2::Norm ( const TVector2 & v ) const

inline

Definition at line 173 of file TVector2.h.

◆ operator*=() [1/2]

TVector2 & TVector2::operator*= ( Double_t s )

inline

Definition at line 122 of file TVector2.h.

◆ operator*=() [2/2]

Double_t TVector2::operator*= ( TVector2 const & v )

inline

Definition at line 120 of file TVector2.h.

◆ operator+=()

TVector2 & TVector2::operator+= ( TVector2 const & v )

inline

Definition at line 115 of file TVector2.h.

◆ operator-=()

TVector2 & TVector2::operator-= ( TVector2 const & v )

inline

Definition at line 116 of file TVector2.h.

◆ operator/=()

TVector2 & TVector2::operator/= ( Double_t s )

inline

Definition at line 123 of file TVector2.h.

◆ operator=()

TVector2 & TVector2::operator= ( TVector2 const & v )

inline

Definition at line 114 of file TVector2.h.

◆ Ort()

TVector2 TVector2::Ort ( ) const

inline

Definition at line 169 of file TVector2.h.

◆ Phi()

Double_t TVector2::Phi ( ) const

Return vector phi.

Definition at line 88 of file TVector2.cxx.

◆ Phi_0_2pi()

Double_t TVector2::Phi_0_2pi ( Double_t x )

static

Returns phi angle in the interval [0,2*PI)

Definition at line 96 of file TVector2.cxx.

◆ Phi_mpi_pi()

Double_t TVector2::Phi_mpi_pi ( Double_t x )

static

Returns phi angle in the interval [-PI,PI)

Definition at line 109 of file TVector2.cxx.

◆ Print()

void TVector2::Print ( Option_t * option = "" ) const

overridevirtual

This method must be overridden when a class wants to print itself.

Reimplemented from TObject.

Definition at line 160 of file TVector2.cxx.

◆ Proj()

TVector2 TVector2::Proj ( const TVector2 & v ) const

inline

Definition at line 171 of file TVector2.h.

◆ Px()

Double_t TVector2::Px ( ) const

inline

Definition at line 71 of file TVector2.h.

◆ Py()

Double_t TVector2::Py ( ) const

inline

Definition at line 72 of file TVector2.h.

◆ Rotate()

TVector2 TVector2::Rotate ( Double_t phi ) const

Rotation by phi.

Definition at line 122 of file TVector2.cxx.

◆ Set() [1/3]

void TVector2::Set ( const TVector2 & v )

inline

Definition at line 177 of file TVector2.h.

◆ Set() [2/3]

void TVector2::Set	(	Double_t	x0,
		Double_t	y0
	)

inline

Definition at line 178 of file TVector2.h.

◆ Set() [3/3]

void TVector2::Set	(	float	x0,
		float	y0
	)

inline

Definition at line 179 of file TVector2.h.

◆ SetMagPhi()

void TVector2::SetMagPhi	(	Double_t	mag,
		Double_t	phi
	)

Set vector using mag and phi.

Definition at line 130 of file TVector2.cxx.

◆ SetX()

void TVector2::SetX ( Double_t x0 )

inline

Definition at line 180 of file TVector2.h.

◆ SetY()

void TVector2::SetY ( Double_t y0 )

inline

Definition at line 181 of file TVector2.h.

◆ Streamer()

void TVector2::Streamer ( TBuffer & R__b )

overridevirtual

Stream an object of class TVector2.

Reimplemented from TObject.

Definition at line 139 of file TVector2.cxx.

◆ StreamerNVirtual()

void TVector2::StreamerNVirtual ( TBuffer & ClassDef_StreamerNVirtual_b )

inline

Definition at line 108 of file TVector2.h.

◆ Unit()

TVector2 TVector2::Unit ( ) const

Return module normalized to 1.

Definition at line 80 of file TVector2.cxx.

◆ X()

Double_t TVector2::X ( ) const

inline

Definition at line 73 of file TVector2.h.

◆ Y()

Double_t TVector2::Y ( ) const

inline

Definition at line 74 of file TVector2.h.

Friends And Related Symbol Documentation

◆ operator* [1/3]

Double_t operator*	(	const TVector2 &	v1,
		const TVector2 &	v2
	)

friend

Definition at line 155 of file TVector2.h.

◆ operator* [2/3]

TVector2 operator*	(	const TVector2 &	v,
		Double_t	s
	)

friend

Definition at line 147 of file TVector2.h.

◆ operator* [3/3]

TVector2 operator*	(	Double_t	s,
		const TVector2 &	v
	)

friend

Definition at line 151 of file TVector2.h.

◆ operator+ [1/3]

TVector2 operator+	(	const TVector2 &	v1,
		const TVector2 &	v2
	)

friend

Definition at line 127 of file TVector2.h.

◆ operator+ [2/3]

TVector2 operator+	(	const TVector2 &	v1,
		Double_t	bias
	)

friend

Definition at line 131 of file TVector2.h.

◆ operator+ [3/3]

TVector2 operator+	(	Double_t	bias,
		const TVector2 &	v1
	)

friend

Definition at line 135 of file TVector2.h.

◆ operator- [1/2]

TVector2 operator-	(	const TVector2 &	v1,
		const TVector2 &	v2
	)

friend

Definition at line 139 of file TVector2.h.

◆ operator- [2/2]

TVector2 operator-	(	const TVector2 &	v1,
		Double_t	bias
	)

friend

Definition at line 143 of file TVector2.h.

◆ operator/

TVector2 operator/	(	const TVector2 &	v,
		Double_t	s
	)

friend

Definition at line 159 of file TVector2.h.

◆ operator^

Double_t operator^	(	const TVector2 &	v1,
		const TVector2 &	v2
	)

friend

Definition at line 163 of file TVector2.h.

Member Data Documentation

◆ fX

Double_t TVector2::fX

protected

Definition at line 24 of file TVector2.h.

◆ fY

Double_t TVector2::fY

protected

Definition at line 25 of file TVector2.h.

Libraries for TVector2:

[legend]

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

math/physics/inc/TVector2.h
math/physics/src/TVector2.cxx

Public Types

Public Member Functions

Static Public Member Functions

Protected Attributes

Friends

Additional Inherited Members

Member Typedef Documentation

◆ Scalar

Constructor & Destructor Documentation

◆ TVector2() [1/4]

◆ TVector2() [2/4]

◆ TVector2() [3/4]

◆ TVector2() [4/4]

◆ ~TVector2()

Member Function Documentation

◆ Class()

◆ Class_Name()

◆ Class_Version()

◆ DeclFileName()

◆ DeltaPhi()

◆ IsA()

◆ Mod()

◆ Mod2()

◆ Norm()

◆ operator*=() [1/2]

◆ operator*=() [2/2]

◆ operator+=()

◆ operator-=()

◆ operator/=()

◆ operator=()

◆ Ort()

◆ Phi()

◆ Phi_0_2pi()

◆ Phi_mpi_pi()

◆ Print()

◆ Proj()

◆ Px()

◆ Py()

◆ Rotate()

◆ Set() [1/3]

◆ Set() [2/3]

◆ Set() [3/3]

◆ SetMagPhi()

◆ SetX()

◆ SetY()

◆ Streamer()

◆ StreamerNVirtual()

◆ Unit()

◆ X()

◆ Y()

Friends And Related Symbol Documentation

◆ operator* [1/3]

◆ operator* [2/3]

◆ operator* [3/3]

◆ operator+ [1/3]

◆ operator+ [2/3]

◆ operator+ [3/3]

◆ operator- [1/2]

◆ operator- [2/2]

◆ operator/

◆ operator^

Member Data Documentation

◆ fX

◆ fY