#include <openvdb/math/Vec2.h>

Inherits Tuple< 2, T >.

Public Types
using	value_type = T

using	ValueType = T

Public Member Functions
	Vec2 ()=default
	Trivial constructor, the vector is NOT initialized. More...

	Vec2 (T val)
	Construct a vector all of whose components have the given value. More...

	Vec2 (T x, T y)
	Constructor with two arguments, e.g. Vec2f v(1,2,3);. More...

template<typename Source >
	Vec2 (Source *a)
	Constructor with array argument, e.g. float a[2]; Vec2f v(a);. More...

template<typename Source >
	Vec2 (const Tuple< 2, Source > &t)
	Conversion constructor. More...

template<typename Other >
	Vec2 (Other val, typename std::enable_if< std::is_arithmetic< Other >::value, Conversion >::type=Conversion{})
	Construct a vector all of whose components have the given value, which may be of an arithmetic type different from this vector's value type. More...

T &	x ()
	Reference to the component, e.g. v.x() = 4.5f;. More...

T &	y ()

T	x () const
	Get the component, e.g. float f = v.y();. More...

T	y () const

T &	operator() (int i)
	Alternative indexed reference to the elements. More...

T	operator() (int i) const
	Alternative indexed constant reference to the elements,. More...

T *	asPointer ()

const T *	asPointer () const

const Vec2< T > &	init (T x=0, T y=0)

const Vec2< T > &	setZero ()
	Set "this" vector to zero. More...

template<typename Source >
const Vec2< T > &	operator= (const Vec2< Source > &v)
	Assignment operator. More...

bool	operator== (const Vec2< T > &v) const
	Equality operator, does exact floating point comparisons. More...

bool	operator!= (const Vec2< T > &v) const
	Inequality operator, does exact floating point comparisons. More...

bool	eq (const Vec2< T > &v, T eps=static_cast< T >(1.0e-7)) const
	Test if "this" vector is equivalent to vector v with tolerance of eps. More...

Vec2< T >	operator- () const
	Negation operator, for e.g. v1 = -v2;. More...

template<typename T0 , typename T1 >
const Vec2< T > &	add (const Vec2< T0 > &v1, const Vec2< T1 > &v2)

template<typename T0 , typename T1 >
const Vec2< T > &	sub (const Vec2< T0 > &v1, const Vec2< T1 > &v2)

template<typename T0 , typename T1 >
const Vec2< T > &	scale (T0 scalar, const Vec2< T1 > &v)

template<typename T0 , typename T1 >
const Vec2< T > &	div (T0 scalar, const Vec2< T1 > &v)

T	dot (const Vec2< T > &v) const
	Dot product. More...

T	length () const
	Length of the vector. More...

T	lengthSqr () const

const Vec2< T > &	exp ()

const Vec2< T > &	log ()

T	sum () const
	Return the sum of all the vector components. More...

T	product () const
	Return the product of all the vector components. More...

bool	normalize (T eps=static_cast< T >(1.0e-8))
	this = normalized this More...

Vec2< T >	unit (T eps=0) const
	return normalized this, throws if null vector More...

Vec2< T >	unit (T eps, T &len) const
	return normalized this and length, throws if null vector More...

Vec2< T >	unitSafe () const
	return normalized this, or (1, 0) if this is null vector More...

template<typename S >
const Vec2< T > &	operator*= (S scalar)
	Multiply each element of this vector by scalar. More...

template<typename S >
const Vec2< T > &	operator*= (const Vec2< S > &v1)
	Multiply each element of this vector by the corresponding element of the given vector. More...

template<typename S >
const Vec2< T > &	operator/= (S scalar)
	Divide each element of this vector by scalar. More...

template<typename S >
const Vec2< T > &	operator/= (const Vec2< S > &v1)
	Divide each element of this vector by the corresponding element of the given vector. More...

template<typename S >
const Vec2< T > &	operator+= (S scalar)
	Add scalar to each element of this vector. More...

template<typename S >
const Vec2< T > &	operator+= (const Vec2< S > &v1)
	Add each element of the given vector to the corresponding element of this vector. More...

template<typename S >
const Vec2< T > &	operator-= (S scalar)
	Subtract scalar from each element of this vector. More...

template<typename S >
const Vec2< T > &	operator-= (const Vec2< S > &v1)
	Subtract each element of the given vector from the corresponding element of this vector. More...

T	component (const Vec2< T > &onto, T eps=static_cast< T >(1.0e-8)) const

Vec2< T >	projection (const Vec2< T > &onto, T eps=static_cast< T >(1.0e-8)) const

Vec2< T >	getArbPerpendicular () const

T	operator[] (int i) const

T &	operator[] (int i)

std::string	str () const

void	write (std::ostream &os) const

void	read (std::istream &is)

bool	isNan () const
	True if a Nan is present in this tuple. More...

bool	isInfinite () const
	True if an Inf is present in this tuple. More...

bool	isFinite () const
	True if no Nan or Inf values are present. More...

bool	isZero () const
	True if all elements are exactly zero. More...

Compatibility
These are mostly for backwards compability with functions that take old-style Vs (which are just arrays).
void	toV (S *v) const
	Copies this tuple into an array of a compatible type. More...

value_type *	asV ()
	Exposes the internal array. Be careful when using this function. More...

value_type const *	asV () const
	Exposes the internal array. Be careful when using this function. More...

Static Public Member Functions
static unsigned	numRows ()

static unsigned	numColumns ()

static unsigned	numElements ()

static Vec2< T >	zero ()
	Predefined constants, e.g. Vec2f v = Vec2f::xNegAxis();. More...

static Vec2< T >	ones ()

Static Public Attributes
static const int	size

Protected Attributes
T	mm [SIZE]

Member Typedef Documentation

using value_type = T

using ValueType = T

Constructor & Destructor Documentation

Vec2 ( )

default

Trivial constructor, the vector is NOT initialized.

Note: destructor, copy constructor, assignment operator and move constructor are left to be defined by the compiler (default)

Vec2 ( T val )

inlineexplicit

Construct a vector all of whose components have the given value.

Vec2	(	T	x,
		T	y
	)

inline

Constructor with two arguments, e.g. Vec2f v(1,2,3);.

Vec2 ( Source * a )

inline

Constructor with array argument, e.g. float a[2]; Vec2f v(a);.

Vec2 ( const Tuple< 2, Source > & t )

inlineexplicit

Conversion constructor.

Vec2	(	Other	val,
		typename std::enable_if< std::is_arithmetic< Other >::value, Conversion >::type	= `Conversion{}`
	)

inlineexplicit

Construct a vector all of whose components have the given value, which may be of an arithmetic type different from this vector's value type.

Type conversion warnings are suppressed.

Member Function Documentation

const Vec2<T>& add	(	const Vec2< T0 > &	v1,
		const Vec2< T1 > &	v2
	)

inline

this = v1 + v2 "this", v1 and v2 need not be distinct objects, e.g. v.add(v1,v);

T* asPointer ( )

inline

const T* asPointer ( ) const

inline

value_type* asV ( )

inlineinherited

Exposes the internal array. Be careful when using this function.

value_type const* asV ( ) const

inlineinherited

Exposes the internal array. Be careful when using this function.

T component	(	const Vec2< T > &	onto,
		T	eps = `static_cast<T>(1.0e-8)`
	)		const

inline

Returns the scalar component of v in the direction of onto, onto need not be unit. e.g float c = Vec2f::component(v1,v2);

const Vec2<T>& div	(	T0	scalar,
		const Vec2< T1 > &	v
	)

inline

T dot ( const Vec2< T > & v ) const

inline

Dot product.

bool eq	(	const Vec2< T > &	v,
		T	eps = `static_cast<T>(1.0e-7)`
	)		const

inline

Test if "this" vector is equivalent to vector v with tolerance of eps.

const Vec2<T>& exp ( )

inline

Return a reference to itsef after the exponent has been applied to all the vector components.

Vec2<T> getArbPerpendicular ( ) const

inline

Return an arbitrary unit vector perpendicular to v Vector v must be a unit vector e.g. v.normalize(); Vec2f n = Vec2f::getArbPerpendicular(v);

const Vec2<T>& init	(	T	x = `0`,
		T	y = `0`
	)

inline

"this" vector gets initialized to [x, y, z], calling v.init(); has same effect as calling v = Vec2::zero();

bool isFinite ( ) const

inlineinherited

True if no Nan or Inf values are present.

bool isInfinite ( ) const

inlineinherited

True if an Inf is present in this tuple.

bool isNan ( ) const

inlineinherited

True if a Nan is present in this tuple.

bool isZero ( ) const

inlineinherited

True if all elements are exactly zero.

T length ( ) const

inline

Length of the vector.

T lengthSqr ( ) const

inline

Squared length of the vector, much faster than length() as it does not involve square root

const Vec2<T>& log ( )

inline

Return a reference to itself after log has been applied to all the vector components.

bool normalize ( T eps = static_cast<T>(1.0e-8) )

inline

this = normalized this

static unsigned numColumns ( )

inlinestatic

static unsigned numElements ( )

inlinestatic

static unsigned numRows ( )

inlinestatic

static Vec2<T> ones ( )

inlinestatic

bool operator!= ( const Vec2< T > & v ) const

inline

Inequality operator, does exact floating point comparisons.

T& operator() ( int i )

inline

Alternative indexed reference to the elements.

T operator() ( int i ) const

inline

Alternative indexed constant reference to the elements,.

const Vec2<T>& operator*= ( S scalar )

inline

Multiply each element of this vector by scalar.

const Vec2<T>& operator*= ( const Vec2< S > & v1 )

inline

Multiply each element of this vector by the corresponding element of the given vector.

const Vec2<T>& operator+= ( S scalar )

inline

Add scalar to each element of this vector.

const Vec2<T>& operator+= ( const Vec2< S > & v1 )

inline

Add each element of the given vector to the corresponding element of this vector.

Vec2<T> operator- ( ) const

inline

Negation operator, for e.g. v1 = -v2;.

const Vec2<T>& operator-= ( S scalar )

inline

Subtract scalar from each element of this vector.

const Vec2<T>& operator-= ( const Vec2< S > & v1 )

inline

Subtract each element of the given vector from the corresponding element of this vector.

const Vec2<T>& operator/= ( S scalar )

inline

Divide each element of this vector by scalar.

const Vec2<T>& operator/= ( const Vec2< S > & v1 )

inline

Divide each element of this vector by the corresponding element of the given vector.

const Vec2<T>& operator= ( const Vec2< Source > & v )

inline

Assignment operator.

bool operator== ( const Vec2< T > & v ) const

inline

Equality operator, does exact floating point comparisons.

T operator[] ( int i ) const

inlineinherited

T& operator[] ( int i )

inlineinherited

T product ( ) const

inline

Return the product of all the vector components.

Vec2<T> projection	(	const Vec2< T > &	onto,
		T	eps = `static_cast<T>(1.0e-8)`
	)		const

inline

Return the projection of v onto the vector, onto need not be unit e.g. Vec2f v = Vec2f::projection(v,n);

void read ( std::istream & is )

inlineinherited

const Vec2<T>& scale	(	T0	scalar,
		const Vec2< T1 > &	v
	)

inline

this = scalar*v, v need not be a distinct object from "this", e.g. v.scale(1.5,v1);

const Vec2<T>& setZero ( )

inline

Set "this" vector to zero.

std::string str ( ) const

inlineinherited

Returns: string representation of Classname

const Vec2<T>& sub	(	const Vec2< T0 > &	v1,
		const Vec2< T1 > &	v2
	)

inline

this = v1 - v2 "this", v1 and v2 need not be distinct objects, e.g. v.sub(v1,v);

T sum ( ) const

inline

Return the sum of all the vector components.

void toV ( S * v ) const

inlineinherited

Copies this tuple into an array of a compatible type.

Vec2<T> unit ( T eps = 0 ) const

inline

return normalized this, throws if null vector

Vec2<T> unit	(	T	eps,
		T &	len
	)		const

inline

return normalized this and length, throws if null vector

Vec2<T> unitSafe ( ) const

inline

return normalized this, or (1, 0) if this is null vector

void write ( std::ostream & os ) const

inlineinherited

T& x ( )

inline

Reference to the component, e.g. v.x() = 4.5f;.

T x ( ) const

inline

Get the component, e.g. float f = v.y();.

T& y ( )

inline

T y ( ) const

inline

static Vec2<T> zero ( )

inlinestatic

Predefined constants, e.g. Vec2f v = Vec2f::xNegAxis();.

Member Data Documentation

T mm[SIZE]

protectedinherited

const int size

staticinherited

Public Types

Public Member Functions

Static Public Member Functions

Static Public Attributes

Protected Attributes

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation