SqrMat2< V > Struct Template Reference

#include <matrix2d.h>

Detailed Description

template<typename V>
struct maxon::SqrMat2< V >

General 2×2 matrix template consisting of two column vectors v1, v2.

Public Types

using VectorStrideType = typename V::VectorStrideType
 
using ValueType = typename V::ValueType
 
using ValueTypeParam = typename ByValueParam< ValueType >::type
 
using BoolType = typename V::BoolType
 

Public Member Functions

constexpr SqrMat2 ()
 
constexpr SqrMat2 (const V &v1_in, const V &v2_in)
 
template<typename V2 >
constexpr SqrMat2 (const SqrMat2< V2 > &m)
 
constexpr SqrMat2 (ENUM_DONT_INITIALIZE v)
 
constexpr void SetIdentity ()
 
V & operator[] (Int idx)
 
const V & operator[] (Int idx) const
 
template<typename V2 >
constexpr SqrMat2< typename MultiplicativePromotion< V, typename V2::ValueType >::typeoperator* (const SqrMat2< V2 > &m2) const
 
template<typename T , Int S>
constexpr Vec2< typename MultiplicativePromotion< ValueType, T >::type, 1 > operator* (const Vec2< T, S > &v) const
 
constexpr SqrMat2 operator* (ValueTypeParam s) const
 
constexpr SqrMat2 operator/ (ValueTypeParam s) const
 
constexpr SqrMat2 operator+ (const SqrMat2 &m2) const
 
constexpr SqrMat2 operator- (const SqrMat2 &m2) const
 
constexpr BoolType operator== (const SqrMat2 &other) const
 
constexpr BoolType operator!= (const SqrMat2 &other) const
 
constexpr ValueType Det () const
 
constexpr SqrMat2 operator~ () const
 
constexpr void Normalize ()
 
constexpr SqrMat2 GetNormalized () const
 
constexpr SqrMat2operator*= (const V &v)
 
constexpr SqrMat2operator*= (ValueTypeParam r)
 
String ToString (const FormatStatement *formatStatement=nullptr) const
 
constexpr MAXON_OPERATOR_HASH (SqrMat2, v1, v2)
 

Public Attributes

v1
 
v2
 

Friends

constexpr friend SqrMat2 operator* (ValueTypeParam s, const SqrMat2 &m)
 

Member Typedef Documentation

◆ VectorStrideType

using VectorStrideType = typename V::VectorStrideType

◆ ValueType

using ValueType = typename V::ValueType

◆ ValueTypeParam

◆ BoolType

using BoolType = typename V::BoolType

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

Constructor & Destructor Documentation

◆ SqrMat2() [1/4]

constexpr SqrMat2 ( )
constexpr

Default constructor, creates an identity matrix.

◆ SqrMat2() [2/4]

constexpr SqrMat2 ( const V &  v1_in,
const V &  v2_in 
)
constexpr

Initializes matrix from individual components.

◆ SqrMat2() [3/4]

constexpr SqrMat2 ( const SqrMat2< V2 > &  m)
explicitconstexpr

Initializes matrix from another matrix.

◆ SqrMat2() [4/4]

constexpr SqrMat2 ( ENUM_DONT_INITIALIZE  v)
explicitconstexpr

Skips initialization of matrix (for better speed)

Member Function Documentation

◆ SetIdentity()

constexpr void SetIdentity ( )
constexpr

Sets this matrix to an identity matrix.

◆ operator[]() [1/2]

V& operator[] ( Int  idx)

Array (subscript) operator for index access to the matrix components.

Parameters
[in]idxElement index (if it's out of bounds you will get an error in debug code only, otherwise it will crash).
Returns
Matrix component.

◆ operator[]() [2/2]

const V& operator[] ( Int  idx) const

Array (subscript) operator for const index access to the matrix components.

Parameters
[in]idxElement index (if it's out of bounds you will get an error in debug code only, otherwise it will crash).
Returns
Matrix component.

◆ operator*() [1/3]

constexpr SqrMat2<typename MultiplicativePromotion<V, typename V2::ValueType>::type> operator* ( const SqrMat2< V2 > &  m2) const
constexpr

Multiplies two matrices. The rule is m1 AFTER m2 If you transform a point with the result matrix this is identical to first transforming with m2 and then with m1

◆ operator*() [2/3]

constexpr Vec2<typename MultiplicativePromotion<ValueType, T>::type, 1> operator* ( const Vec2< T, S > &  v) const
constexpr

Transforms a point by a matrix.

◆ operator*() [3/3]

constexpr SqrMat2 operator* ( ValueTypeParam  s) const
constexpr

Scales all matrix components by a scalar value.

◆ operator/()

constexpr SqrMat2 operator/ ( ValueTypeParam  s) const
constexpr

Divides all matrix components by a scalar value. If s is 0.0 an identity matrix will be returned.

◆ operator+()

constexpr SqrMat2 operator+ ( const SqrMat2< V > &  m2) const
constexpr

Adds two matrices component-wise.

◆ operator-()

constexpr SqrMat2 operator- ( const SqrMat2< V > &  m2) const
constexpr

Subtracts two matrices component-wise.

◆ operator==()

constexpr BoolType operator== ( const SqrMat2< V > &  other) const
constexpr

Equality operator.

Parameters
[in]otherComparison matrix.
Returns
True if this and other are equal, otherwise false.

◆ operator!=()

constexpr BoolType operator!= ( const SqrMat2< V > &  other) const
constexpr

Inequality operator.

Parameters
[in]otherComparison matrix.
Returns
False if this and other are equal, otherwise true.

◆ Det()

constexpr ValueType Det ( ) const
constexpr

Computes the determinant of this matrix.

◆ operator~()

constexpr SqrMat2 operator~ ( ) const
constexpr

Calculates the inverse matrix If no inverse can be calculated the result is the Identity matrix

◆ Normalize()

constexpr void Normalize ( )
constexpr

Normalizes the length of all three axes.

◆ GetNormalized()

constexpr SqrMat2 GetNormalized ( ) const
constexpr

Returns this matrix with all axis vectors normalized.

◆ operator*=() [1/2]

constexpr SqrMat2& operator*= ( const V &  v)
constexpr

Scales each axis by the respective components of the passed vector.

◆ operator*=() [2/2]

constexpr SqrMat2& operator*= ( ValueTypeParam  r)
constexpr

Scales each axis by the scalar.

◆ 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.

◆ MAXON_OPERATOR_HASH()

constexpr MAXON_OPERATOR_HASH ( SqrMat2< V >  ,
v1  ,
v2   
)
constexpr

Friends And Related Function Documentation

◆ operator*

constexpr friend SqrMat2 operator* ( ValueTypeParam  s,
const SqrMat2< V > &  m 
)
friend

Scales all matrix components by a scalar value.

Member Data Documentation

◆ v1

V v1

The X axis.

◆ v2

V v2

The Y axis.