Vec2< T, STRIDE, SPACE > Struct Template Reference

#include <vec2.h>

Detailed Description

template<typename T, Int STRIDE = 1, typename SPACE = void>
struct maxon::Vec2< T, STRIDE, SPACE >

A vector consisting of two components X and Y.

Public Types

template<typename U >
using Rebind = Vec2< U, STRIDE, SPACE >
 
using VectorStrideType = std::integral_constant< Int, STRIDE >
 
using ValueType = T
 
using ValueTypeParam = typename ByValueParam< T >::type
 
using Unstrided = Vec2< T, 1, SPACE >
 
using BoolType = decltype(T()==T())
 

Public Member Functions

constexpr Vec2 ()
 
constexpr Vec2 (ValueTypeParam in)
 
constexpr Vec2 (ValueTypeParam ix, ValueTypeParam iy)
 
template<typename T2 , Int S2>
constexpr Vec2 (const Vec2< T2, S2, SPACE > &v)
 
template<Int S2>
constexpr Vec2 (const Vec2< T, S2, SPACE > &v)
 
template<typename T2 , Int S2>
constexpr Vec2 (const Vec3< T2, S2 > &v)
 
constexpr Vec2 (ENUM_DONT_INITIALIZE v)
 
constexpr MAXON_IMPLICIT Vec2 (const typename std::conditional< STRIDE==1, DummyParamType, Vec2 >::type &src)
 
Vec2operator= (const typename std::conditional< STRIDE==1, DummyParamType, Vec2 >::type &src)
 
T & operator[] (Int l)
 
ValueTypeParam operator[] (Int l) const
 
template<typename T2 , Int S2>
Vec2operator+= (const Vec2< T2, S2, SPACE > &v)
 
Vec2operator+= (const Vec2 &v)
 
template<typename T2 , Int S2>
Vec2operator-= (const Vec2< T2, S2, SPACE > &v)
 
Vec2operator-= (const Vec2 &v)
 
template<typename T2 , Int S2>
Vec2operator*= (const Vec2< T2, S2, SPACE > &v)
 
Vec2operator*= (const Vec2 &v)
 
Vec2operator*= (ValueTypeParam s)
 
Vec2operator/= (ValueTypeParam s)
 
constexpr Unstrided operator* (ValueTypeParam s) const
 
template<typename S >
constexpr Vec2< typename MultiplicativePromotion< T, S, STD_IS_REPLACEMENT(scalar, S)>::type, 1, SPACE > operator* (S s) const
 
constexpr Unstrided operator/ (ValueTypeParam s) const
 
constexpr Unstrided operator* (const Vec2 &v) const
 
constexpr Unstrided operator+ (const Vec2 &v) const
 
constexpr Unstrided operator- (const Vec2 &v) const
 
constexpr Unstrided operator- () const
 
template<typename T2 , Int S2>
constexpr BoolType operator== (const Vec2< T2, S2, SPACE > &v) const
 
constexpr BoolType operator== (const Vec2 &v) const
 
template<typename T2 , Int S2>
constexpr BoolType operator!= (const Vec2< T2, S2, SPACE > &v) const
 
constexpr BoolType operator!= (const Vec2 &v) const
 
constexpr BoolType operator<= (const Vec2 &v) const
 
constexpr BoolType operator>= (const Vec2 &v) const
 
constexpr BoolType operator< (const Vec2 &v) const
 
constexpr BoolType operator> (const Vec2 &v) const
 
constexpr HashInt GetHashCode () const
 
UniqueHash GetUniqueHashCode () const
 
BoolType IsEqual (const Vec2 &other, ValueTypeParam epsilon) const
 
constexpr BoolType IsZero () const
 
void SetZero ()
 
constexpr T GetAverage () const
 
constexpr T GetSum () const
 
void ClampMin (const Vec2 &other=Vec2())
 
void ClampMax (const Vec2 &other)
 
constexpr Unstrided Clamp01 () const
 
GetLength () const
 
constexpr T GetSquaredLength () const
 
Unstrided GetNormalized () const
 
Unstrided operator! () const
 
void Normalize ()
 
String ToString (const FormatStatement *formatStatement=nullptr) const
 
constexpr T GetMin () const
 
constexpr T GetMax () const
 
constexpr Unstrided GetRightRotated (Int rots) const
 
template<typename T2 >
Vec2operator*= (const Mat2< T2 > &m)
 

Static Public Member Functions

static MAXON_ATTRIBUTE_FORCE_INLINE const Vec2DefaultValue ()
 

Public Attributes

union {
   T   x
 
   T   _xpadding [STRIDE]
 
}; 
 
union {
   T   y
 
   T   _ypadding [STRIDE]
 
}; 
 

Friends

constexpr friend Unstrided operator* (ValueTypeParam s, const Vec2 &v)
 
constexpr friend T Dot (const Vec2 &v1, const Vec2 &v2)
 
Unstrided Abs (const Vec2 &v1)
 
template<typename T2 , Int S2>
constexpr friend MultiplicativePromotion< T, T2 >::type Dot (const Vec2 &v1, const Vec2< T2, S2, SPACE > &v2)
 
constexpr friend Unstrided Min (const Vec2 &a, const Vec2 &other)
 
constexpr friend Unstrided Max (const Vec2 &a, const Vec2 &other)
 
void SetMin (Vec2 &a, const Vec2 &other)
 
void SetMax (Vec2 &a, const Vec2 &other)
 
GetAngle (const Vec2 &v1, const Vec2 &v2)
 
constexpr friend Unstrided Cross (const Vec2 &v1)
 

Member Typedef Documentation

◆ Rebind

using Rebind = Vec2<U, STRIDE, SPACE>

◆ VectorStrideType

using VectorStrideType = std::integral_constant<Int, STRIDE>

◆ ValueType

using ValueType = T

◆ ValueTypeParam

using ValueTypeParam = typename ByValueParam<T>::type

◆ Unstrided

using Unstrided = Vec2<T, 1, SPACE>

◆ BoolType

using BoolType = decltype(T() == T())

The type returned by comparisons. If the template argument for T is a SIMD type, this will be a SIMD type, too, which contains the per-element results.

Constructor & Destructor Documentation

◆ Vec2() [1/8]

constexpr Vec2 ( )
constexpr

Initializes all vector components with 0.0.

◆ Vec2() [2/8]

constexpr Vec2 ( ValueTypeParam  in)
explicitconstexpr

Initializes all vector components with a scalar.

◆ Vec2() [3/8]

constexpr Vec2 ( ValueTypeParam  ix,
ValueTypeParam  iy 
)
explicitconstexpr

Initializes all vector components individually.

◆ Vec2() [4/8]

constexpr Vec2 ( const Vec2< T2, S2, SPACE > &  v)
explicitconstexpr

Initializes components from another 2d vector.

◆ Vec2() [5/8]

constexpr Vec2 ( const Vec2< T, S2, SPACE > &  v)
constexpr

Initializes components from another 2d vector.

◆ Vec2() [6/8]

constexpr Vec2 ( const Vec3< T2, S2 > &  v)
explicitconstexpr

Initializes components from a 3d vector. The z-component of v is ignored.

◆ Vec2() [7/8]

constexpr Vec2 ( ENUM_DONT_INITIALIZE  v)
explicitconstexpr

Skips initialization of vector (for better speed)

◆ Vec2() [8/8]

constexpr MAXON_IMPLICIT Vec2 ( const typename std::conditional< STRIDE==1, DummyParamType, Vec2< T, STRIDE, SPACE > >::type src)
constexpr

When STRIDE is not 1, we have to provide copy constructor and operator because the default ones would also copy the padding. When STRIDE is 1, we want to avoid to declare them (because then the type wouldn't be trivially copyable any longer), so we use DummyParamType for the parameter in that case.

Member Function Documentation

◆ operator=()

Vec2& operator= ( const typename std::conditional< STRIDE==1, DummyParamType, Vec2< T, STRIDE, SPACE > >::type src)

Copies the source vector.

Parameters
[in]srcSource vector.
Returns
*this.

◆ operator[]() [1/2]

T& operator[] ( Int  l)

Accesses vector component: index 0 is 'x', index 1 is 'y'. All other values must not be used and will crash.

◆ operator[]() [2/2]

ValueTypeParam operator[] ( Int  l) const

Accesses vector component: index 0 is 'x', index 1 is 'y'. All other values must not be used and will crash.

◆ operator+=() [1/2]

Vec2& operator+= ( const Vec2< T2, S2, SPACE > &  v)

Adds two vectors.

◆ operator+=() [2/2]

Vec2& operator+= ( const Vec2< T, STRIDE, SPACE > &  v)

Adds a vector. We repeat the function template as non-template function, this allows the usage in contexts where the parameter is not a vector itself, but something with a conversion operator to a vector.

Parameters
[in]vVector to be added.
Returns
*this.

◆ operator-=() [1/2]

Vec2& operator-= ( const Vec2< T2, S2, SPACE > &  v)

Subtracts two vectors.

◆ operator-=() [2/2]

Vec2& operator-= ( const Vec2< T, STRIDE, SPACE > &  v)

Subtracts a vector. We repeat the function template as non-template function, this allows the usage in contexts where the parameter is not a vector itself, but something with a conversion operator to a vector.

Parameters
[in]vVector to be substracted from this.
Returns
*this.

◆ operator*=() [1/4]

Vec2& operator*= ( const Vec2< T2, S2, SPACE > &  v)

Multiplies two vectors component-wise.

◆ operator*=() [2/4]

Vec2& operator*= ( const Vec2< T, STRIDE, SPACE > &  v)

Multiplies with vector component-wise. We repeat the function template as non-template function, this allows the usage in contexts where the parameter is not a vector itself, but something with a conversion operator to a vector.

Parameters
[in]vVector to be multiplied with.
Returns
*this.

◆ operator*=() [3/4]

Vec2& operator*= ( ValueTypeParam  s)

Multiplies each vector component by a scalar.

◆ operator/=()

Vec2& operator/= ( ValueTypeParam  s)

Divides each vector component by a scalar. The passed argument is checked for 0.0.

◆ operator*() [1/3]

constexpr Unstrided operator* ( ValueTypeParam  s) const
constexpr

Multiplies each vector component by a scalar.

◆ operator*() [2/3]

constexpr Vec2<typename MultiplicativePromotion<T, S, STD_IS_REPLACEMENT(scalar, S)>::type, 1, SPACE> operator* ( s) const
constexpr

Multiplies each vector component by a scalar.

◆ operator/()

constexpr Unstrided operator/ ( ValueTypeParam  s) const
constexpr

Divides each vector component by a scalar. The scalar value is tested for 0.0.

◆ operator*() [3/3]

constexpr Unstrided operator* ( const Vec2< T, STRIDE, SPACE > &  v) const
constexpr

Multiplies two vectors component-wise.

◆ operator+()

constexpr Unstrided operator+ ( const Vec2< T, STRIDE, SPACE > &  v) const
constexpr

Adds two vectors.

◆ operator-() [1/2]

constexpr Unstrided operator- ( const Vec2< T, STRIDE, SPACE > &  v) const
constexpr

Subtracts vector v2 from v1.

◆ operator-() [2/2]

constexpr Unstrided operator- ( ) const
constexpr

Negates vector v.

◆ operator==() [1/2]

constexpr BoolType operator== ( const Vec2< T2, S2, SPACE > &  v) const
constexpr

Equality operator. We repeat the function template as non-template function, this allows the usage in contexts where the parameter is not a vector itself, but something with a conversion operator to a vector

Parameters
[in]vComparison vector.
Returns
True if this and v are equal, otherwise false.

◆ operator==() [2/2]

constexpr BoolType operator== ( const Vec2< T, STRIDE, SPACE > &  v) const
constexpr

Equality operator. We repeat the function template as non-template function, this allows the usage in contexts where the parameter is not a vector itself, but something with a conversion operator to a vector

Parameters
[in]vComparison vector.
Returns
True if this and v are equal, otherwise false.

◆ operator!=() [1/2]

constexpr BoolType operator!= ( const Vec2< T2, S2, SPACE > &  v) const
constexpr

Inequality operator.

Parameters
[in]vComparison vector.
Returns
False if this and v are equal, otherwise true.

◆ operator!=() [2/2]

constexpr BoolType operator!= ( const Vec2< T, STRIDE, SPACE > &  v) const
constexpr

Inequality operator. We repeat the function template as non-template function, this allows the usage in contexts where the parameter is not a vector itself, but something with a conversion operator to a vector

Parameters
[in]vComparison vector.
Returns
False if this and v are equal, otherwise true.

◆ operator<=()

constexpr BoolType operator<= ( const Vec2< T, STRIDE, SPACE > &  v) const
constexpr

Compares this vector with v. Note that this doesn't define a total order but just a partial order, so for a pair of vectors it can happen that neither {v <= w} nor {v >= w}.

Parameters
[in]vComparison vector.
Returns
True if this.c <= v.c for all components c of the vectors, false otherwise.

◆ operator>=()

constexpr BoolType operator>= ( const Vec2< T, STRIDE, SPACE > &  v) const
constexpr

Compares this vector with v. Note that this doesn't define a total order but just a partial order, so for a pair of vectors it can happen that neither {v <= w} nor {v >= w}.

Parameters
[in]vComparison vector.
Returns
True if this.c >= v.c for all components c of the vectors, false otherwise.

◆ operator<()

constexpr BoolType operator< ( const Vec2< T, STRIDE, SPACE > &  v) const
constexpr

Compares this vector with v. Note that this doesn't define a total order but just a partial order, so for a pair of vectors it can happen that neither {v < w} nor {v > w} nor {v == w}. Also note that {v < w} is not the same as {v <= w && v != w}.

Parameters
[in]vComparison vector.
Returns
True if this.c < v.c for all components c of the vectors, false otherwise.

◆ operator>()

constexpr BoolType operator> ( const Vec2< T, STRIDE, SPACE > &  v) const
constexpr

Compares this vector with v. Note that this doesn't define a total order but just a partial order, so for a pair of vectors it can happen that neither {v < w} nor {v > w} nor {v == w}. Also note that {v > w} is not the same as {v >= w && v != w}.

Parameters
[in]vComparison vector.
Returns
True if this.c > v.c for all components c of the vectors, false otherwise.

◆ GetHashCode()

constexpr HashInt GetHashCode ( ) const
constexpr

Returns the hash code of the vector (used for hash maps and comparisons).

Returns
The vector's hash code.

◆ GetUniqueHashCode()

UniqueHash GetUniqueHashCode ( ) const

◆ IsEqual()

BoolType IsEqual ( const Vec2< T, STRIDE, SPACE > &  other,
ValueTypeParam  epsilon 
) const

Tests component-wise if the difference is no bigger than 'epsilon'.

◆ IsZero()

constexpr BoolType IsZero ( ) const
constexpr

Checks if each component is zero.

◆ SetZero()

void SetZero ( )

Sets all components to zero.

◆ GetAverage()

constexpr T GetAverage ( ) const
constexpr

Calculates the average value of 'x', 'y' and 'z'.

◆ GetSum()

constexpr T GetSum ( ) const
constexpr

Calculates the sum of 'x', 'y' and 'z'.

◆ ClampMin()

void ClampMin ( const Vec2< T, STRIDE, SPACE > &  other = Vec2< T, STRIDE, SPACE >())

Set the minimum of each component.

◆ ClampMax()

void ClampMax ( const Vec2< T, STRIDE, SPACE > &  other)

Set the maximum of each component.

◆ Clamp01()

constexpr Unstrided Clamp01 ( ) const
constexpr

Returns a vector that is clamped to the range [0.0 .. 1.0].

◆ GetLength()

T GetLength ( ) const

Returns the length of the vector.

◆ GetSquaredLength()

constexpr T GetSquaredLength ( ) const
constexpr

Returns the squared length of the vector.

◆ GetNormalized()

Unstrided GetNormalized ( ) const

Returns a normalized vector, so that GetLength(vector)==1.0.

◆ operator!()

Unstrided operator! ( ) const

Returns a normalized vector, so that GetLength(vector)==1.0.

◆ Normalize()

void Normalize ( )

Normalizes this vector, so that GetLength()==1.0.

◆ ToString()

String ToString ( const FormatStatement formatStatement = nullptr) const

Returns a readable string of the content.

Parameters
[in]formatStatementNullptr or additional formatting instruction. See also Formatting Floating point values.
Returns
The converted result.

◆ GetMin()

constexpr T GetMin ( ) const
constexpr

Returns the minimum of 'x' and 'y'.

◆ GetMax()

constexpr T GetMax ( ) const
constexpr

Returns the maximum of 'x' and 'y'.

◆ GetRightRotated()

constexpr Unstrided GetRightRotated ( Int  rots) const
constexpr

Returns a vector where the components have been rotated to the right (in the usual (x, y)-representation). E.g., with a value of 1 for rots, the result will be (y, x).

Parameters
[in]rotsNumber of rotations, may be negative. The result depends only on the number modulo 2.
Returns
Vector with rotated components.

◆ operator*=() [4/4]

Vec2& operator*= ( const Mat2< T2 > &  m)

Transforms point by a matrix.

◆ DefaultValue()

static MAXON_ATTRIBUTE_FORCE_INLINE const Vec2& DefaultValue ( )
static

Returns a default value of the vector (see defaultvalue.h for more details).

Returns
A default value of the vector.

Friends And Related Function Documentation

◆ operator*

constexpr friend Unstrided operator* ( ValueTypeParam  s,
const Vec2< T, STRIDE, SPACE > &  v 
)
friend

Multiplies each vector component by a scalar.

◆ Dot [1/2]

constexpr friend T Dot ( const Vec2< T, STRIDE, SPACE > &  v1,
const Vec2< T, STRIDE, SPACE > &  v2 
)
friend

Calculates dot product of v1 and v2.

◆ Abs

Unstrided Abs ( const Vec2< T, STRIDE, SPACE > &  v1)
friend

returns the vector with absolute value for each entry

Parameters
[in]v1input vector to work on
Returns
component wise absolute value vector of input vector

◆ Dot [2/2]

constexpr friend MultiplicativePromotion<T, T2>::type Dot ( const Vec2< T, STRIDE, SPACE > &  v1,
const Vec2< T2, S2, SPACE > &  v2 
)
friend

Calculates dot product of v1 and v2.

◆ Min

constexpr friend Unstrided Min ( const Vec2< T, STRIDE, SPACE > &  a,
const Vec2< T, STRIDE, SPACE > &  other 
)
friend

Calculates the minimum of each component.

◆ Max

constexpr friend Unstrided Max ( const Vec2< T, STRIDE, SPACE > &  a,
const Vec2< T, STRIDE, SPACE > &  other 
)
friend

Calculates the maximum of each component.

◆ SetMin

void SetMin ( Vec2< T, STRIDE, SPACE > &  a,
const Vec2< T, STRIDE, SPACE > &  other 
)
friend

Set the minimum of each component.

◆ SetMax

void SetMax ( Vec2< T, STRIDE, SPACE > &  a,
const Vec2< T, STRIDE, SPACE > &  other 
)
friend

Set the maximum of each component.

◆ GetAngle

T GetAngle ( const Vec2< T, STRIDE, SPACE > &  v1,
const Vec2< T, STRIDE, SPACE > &  v2 
)
friend

Calculates angle (in radians) between v1 and v2.

◆ Cross

constexpr friend Unstrided Cross ( const Vec2< T, STRIDE, SPACE > &  v1)
friend

Calculates the cross product of a 2d vector. This is the vector (Y, -X), i.e., the clockwise rotation by 90 degrees.

Member Data Documentation

◆ x

T x

◆ _xpadding

T _xpadding[STRIDE]

◆ 

union { ... }

◆ y

T y

◆ _ypadding

T _ypadding[STRIDE]

◆ 

union { ... }