Class for two dimensional vector. More...

#include <vmath.h>

Collaboration diagram for Vector2< T >:

Public Member Functions
	Vector2 ()
	Creates and sets to (0,0) More...

	Vector2 (T nx, T ny)
	Creates and sets to (x,y) More...

	Vector2 (const Vector2< T > &src)
	Copy constructor. More...

template<class FromT >
	Vector2 (const Vector2< FromT > &src)
	Copy casting constructor. More...

template<class FromT >
Vector2< T > &	operator= (const Vector2< FromT > &rhs)
	Copy casting operator. More...

Vector2< T > &	operator= (const Vector2< T > &rhs)
	Copy operator. More...

T &	operator[] (int n)
	Array access operator. More...

const T &	operator[] (int n) const
	Constant array access operator. More...

Vector2< T >	operator+ (const Vector2< T > &rhs) const
	Addition operator. More...

Vector2< T >	operator- (const Vector2< T > &rhs) const
	Subtraction operator. More...

Vector2< T >	operator* (const Vector2< T > &rhs) const
	Multiplication operator. More...

Vector2< T >	operator/ (const Vector2< T > &rhs) const
	Division operator. More...

Vector2< T > &	operator+= (const Vector2< T > &rhs)
	Addition operator. More...

Vector2< T > &	operator-= (const Vector2< T > &rhs)
	Substraction operator. More...

Vector2< T > &	operator*= (const Vector2< T > &rhs)
	Multiplication operator. More...

Vector2< T > &	operator/= (const Vector2< T > &rhs)
	Division operator. More...

Vector2< T >	operator+ (T rhs) const
	Addition operator. More...

Vector2< T >	operator- (T rhs) const
	Subtraction operator. More...

Vector2< T >	operator* (T rhs) const
	Multiplication operator. More...

Vector2< T >	operator/ (T rhs) const
	Division operator. More...

Vector2< T > &	operator+= (T rhs)
	Addition operator. More...

Vector2< T > &	operator-= (T rhs)
	Subtraction operator. More...

Vector2< T > &	operator*= (T rhs)
	Multiplication operator. More...

Vector2< T > &	operator/= (T rhs)
	Division operator. More...

bool	operator== (const Vector2< T > &rhs) const
	Equality test operator. More...

bool	operator!= (const Vector2< T > &rhs) const
	Inequality test operator. More...

Vector2< T >	operator- () const
	Unary negate operator. More...

T	length () const
	Get length of vector. More...

void	normalize ()
	Normalize vector. More...

T	lengthSq () const
	Return square of length. More...

Vector2< T >	lerp (T fact, const Vector2< T > &r) const
	Linear interpolation of two vectors. More...

	operator T* ()
	Conversion to pointer operator. More...

	operator const T * () const
	Conversion to pointer operator. More...

std::string	toString () const
	Gets string representation. More...

Public Attributes
union {
T x
	First element of vector, alias for X-coordinate. More...

T s
	First element of vector, alias for S-coordinate. More...

};

union {
T y
	Second element of vector, alias for Y-coordinate. More...

T t
	Second element of vector, alias for T-coordinate. More...

};

Friends
std::ostream &	operator<< (std::ostream &lhs, const Vector2< T > &rhs)
	Output to stream operator. More...

Detailed Description

template<class T>
class Vector2< T >

Class for two dimensional vector.

There are three ways of accessing vector components. Let's have Vector2f v, you can either:

access as position(x,y) — v.x = v.y = 3;
access as texture coordinate (s,t) — v.s = v.t = 3;
access via operator[] — v[0] = v[1] = 3;

Constructor & Destructor Documentation

◆ Vector2() [1/4]

template<class T>

Vector2< T >::Vector2 ( )

inline

Creates and sets to (0,0)

◆ Vector2() [2/4]

template<class T>

Vector2< T >::Vector2	(	T	nx,
		T	ny
	)

inline

Creates and sets to (x,y)

Parameters

nx	initial x-coordinate value
ny	initial y-coordinate value

◆ Vector2() [3/4]

template<class T>

Vector2< T >::Vector2 ( const Vector2< T > & src )

inline

Copy constructor.

Parameters

src	Source of data for new created instance.

◆ Vector2() [4/4]

template<class T>

template<class FromT >

Vector2< T >::Vector2 ( const Vector2< FromT > & src )

inline

Copy casting constructor.

Parameters

src	Source of data for new created instance.

Member Function Documentation

◆ length()

template<class T>

T Vector2< T >::length ( ) const

inline

Get length of vector.

Returns: lenght of vector

◆ lengthSq()

template<class T>

T Vector2< T >::lengthSq ( ) const

inline

Return square of length.

Returns: length ^ 2

Note: This method is faster then length(). For comparison of length of two vector can be used just this value, instead of more expensive length() method.

◆ lerp()

template<class T>

Vector2<T> Vector2< T >::lerp	(	T	fact,
		const Vector2< T > &	r
	)		const

inline

Linear interpolation of two vectors.

Parameters

fact	Factor of interpolation. For translation from position of this vector to vector r, values of factor goes from 0.0 to 1.0.
r	Second Vector for interpolation

Note: However values of fact parameter are reasonable only in interval [0.0 , 1.0], you can pass also values outside of this interval and you can get result (extrapolation?)

◆ normalize()

template<class T>

void Vector2< T >::normalize ( )

inline

Normalize vector.

◆ operator const T *()

template<class T>

Vector2< T >::operator const T * ( ) const

inline

Conversion to pointer operator.

Returns: Constant Pointer to internally stored (in management of class Vector2<T>) used for passing Vector2<T> values to gl*2[fd] functions.

◆ operator T*()

template<class T>

Vector2< T >::operator T* ( )

inline

Conversion to pointer operator.

Returns: Pointer to internally stored (in management of class Vector2<T>) used for passing Vector2<T> values to gl*2[fd] functions.

◆ operator!=()

template<class T>

bool Vector2< T >::operator!= ( const Vector2< T > & rhs ) const

inline

Inequality test operator.

Parameters

rhs	Right hand side argument of binary operator.

Returns: not (lhs == rhs) :-P

◆ operator*() [1/2]

template<class T>

Vector2<T> Vector2< T >::operator* ( const Vector2< T > & rhs ) const

inline

Multiplication operator.

Parameters

rhs	Right hand side argument of binary operator.

◆ operator*() [2/2]

template<class T>

Vector2<T> Vector2< T >::operator* ( T rhs ) const

inline

Multiplication operator.

Parameters

rhs	Right hand side argument of binary operator.

◆ operator*=() [1/2]

template<class T>

Vector2<T>& Vector2< T >::operator*= ( const Vector2< T > & rhs )

inline

Multiplication operator.

Parameters

rhs	Right hand side argument of binary operator.

◆ operator*=() [2/2]

template<class T>

Vector2<T>& Vector2< T >::operator*= ( T rhs )

inline

Multiplication operator.

Parameters

rhs	Right hand side argument of binary operator.

◆ operator+() [1/2]

template<class T>

Vector2<T> Vector2< T >::operator+ ( const Vector2< T > & rhs ) const

inline

Addition operator.

Parameters

rhs	Right hand side argument of binary operator.

◆ operator+() [2/2]

template<class T>

Vector2<T> Vector2< T >::operator+ ( T rhs ) const

inline

Addition operator.

Parameters

rhs	Right hand side argument of binary operator.

◆ operator+=() [1/2]

template<class T>

Vector2<T>& Vector2< T >::operator+= ( const Vector2< T > & rhs )

inline

Addition operator.

Parameters

rhs	Right hand side argument of binary operator.

◆ operator+=() [2/2]

template<class T>

Vector2<T>& Vector2< T >::operator+= ( T rhs )

inline

Addition operator.

Parameters

rhs	Right hand side argument of binary operator.

◆ operator-() [1/3]

template<class T>

Vector2<T> Vector2< T >::operator- ( const Vector2< T > & rhs ) const

inline

Subtraction operator.

Parameters

rhs	Right hand side argument of binary operator.

◆ operator-() [2/3]

template<class T>

Vector2<T> Vector2< T >::operator- ( T rhs ) const

inline

Subtraction operator.

Parameters

rhs	Right hand side argument of binary operator.

◆ operator-() [3/3]

template<class T>

Vector2<T> Vector2< T >::operator- ( ) const

inline

Unary negate operator.

Returns: negated vector

◆ operator-=() [1/2]

template<class T>

Vector2<T>& Vector2< T >::operator-= ( const Vector2< T > & rhs )

inline

Substraction operator.

Parameters

rhs	Right hand side argument of binary operator.

◆ operator-=() [2/2]

template<class T>

Vector2<T>& Vector2< T >::operator-= ( T rhs )

inline

Subtraction operator.

Parameters

rhs	Right hand side argument of binary operator.

◆ operator/() [1/2]

template<class T>

Vector2<T> Vector2< T >::operator/ ( const Vector2< T > & rhs ) const

inline

Division operator.

Parameters

rhs	Right hand side argument of binary operator.

◆ operator/() [2/2]

template<class T>

Vector2<T> Vector2< T >::operator/ ( T rhs ) const

inline

Division operator.

Parameters

rhs	Right hand side argument of binary operator.

◆ operator/=() [1/2]

template<class T>

Vector2<T>& Vector2< T >::operator/= ( const Vector2< T > & rhs )

inline

Division operator.

Parameters

rhs	Right hand side argument of binary operator.

◆ operator/=() [2/2]

template<class T>

Vector2<T>& Vector2< T >::operator/= ( T rhs )

inline

Division operator.

Parameters

rhs	Right hand side argument of binary operator.

◆ operator=() [1/2]

template<class T>

template<class FromT >

Vector2<T>& Vector2< T >::operator= ( const Vector2< FromT > & rhs )

inline

Copy casting operator.

Parameters

rhs	Right hand side argument of binary operator.

◆ operator=() [2/2]

template<class T>

Vector2<T>& Vector2< T >::operator= ( const Vector2< T > & rhs )

inline

Copy operator.

Parameters

rhs	Right hand side argument of binary operator.

◆ operator==()

template<class T>

bool Vector2< T >::operator== ( const Vector2< T > & rhs ) const

inline

Equality test operator.

Parameters

rhs	Right hand side argument of binary operator.

Note: Test of equality is based of threshold EPSILON value. To be two values equal, must satisfy this condition | lhs.x - rhs.y | < EPSILON, same for y-coordinate.

◆ operator[]() [1/2]

template<class T>

T& Vector2< T >::operator[] ( int n )

inline

Array access operator.

Parameters

n	Array index

Returns: For n = 0, reference to x coordinate, else reference to y y coordinate.

◆ operator[]() [2/2]

template<class T>

const T& Vector2< T >::operator[] ( int n ) const

inline

Constant array access operator.

Parameters

n	Array index

Returns: For n = 0, reference to x coordinate, else reference to y y coordinate.

◆ toString()

template<class T>

std::string Vector2< T >::toString ( ) const

inline

Gets string representation.

Friends And Related Function Documentation

◆ operator<<

template<class T>

std::ostream& operator<<	(	std::ostream &	lhs,
		const Vector2< T > &	rhs
	)

friend

Output to stream operator.

Parameters

lhs	Left hand side argument of operator (commonly ostream instance).
rhs	Right hand side argument of operator.

Returns: Left hand side argument - the ostream object passed to operator.

Member Data Documentation

◆ @1

union { ... }

◆ @3

union { ... }

◆ s

template<class T>

T Vector2< T >::s

First element of vector, alias for S-coordinate.

For textures notation.

◆ t

template<class T>

T Vector2< T >::t

Second element of vector, alias for T-coordinate.

For textures notation.

◆ x

template<class T>

T Vector2< T >::x

First element of vector, alias for X-coordinate.

◆ y

template<class T>

T Vector2< T >::y

Second element of vector, alias for Y-coordinate.

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

src/vmath.h

Public Member Functions

Public Attributes

Friends

Detailed Description

template<class T> class Vector2< T >

Constructor & Destructor Documentation

◆ Vector2() [1/4]

◆ Vector2() [2/4]

◆ Vector2() [3/4]

◆ Vector2() [4/4]

Member Function Documentation

◆ length()

◆ lengthSq()

◆ lerp()

◆ normalize()

◆ operator const T *()

◆ operator T*()

◆ operator!=()

◆ operator*() [1/2]

◆ operator*() [2/2]

◆ operator*=() [1/2]

◆ operator*=() [2/2]

◆ operator+() [1/2]

◆ operator+() [2/2]

◆ operator+=() [1/2]

◆ operator+=() [2/2]

◆ operator-() [1/3]

◆ operator-() [2/3]

◆ operator-() [3/3]

◆ operator-=() [1/2]

◆ operator-=() [2/2]

◆ operator/() [1/2]

◆ operator/() [2/2]

◆ operator/=() [1/2]

◆ operator/=() [2/2]

◆ operator=() [1/2]

◆ operator=() [2/2]

◆ operator==()

◆ operator[]() [1/2]

◆ operator[]() [2/2]

◆ toString()

Friends And Related Function Documentation

◆ operator<<

Member Data Documentation

◆ @1

◆ @3

◆ s

◆ t

◆ x

◆ y

template<class T>
class Vector2< T >