MR::Matrix3< T > Struct Template Reference

#include <MRMesh/MRMatrix3.h>

Classes
struct	QR
	returns 3 Euler angles, assuming this is a rotation matrix composed as follows: R=R(z)*R(y)*R(x) More...

Public Types
using	ValueType = T
using	VectorType = Vector3<T>

Public Member Functions
constexpr	Matrix3 () noexcept
constexpr	Matrix3 (const Vector3< T > &x, const Vector3< T > &y, const Vector3< T > &z)
	initializes matrix from its 3 rows
template<typename U>
	MR_REQUIRES_IF_SUPPORTED (!std::is_same_v< T, U >) const expr explicit Matrix3(const Matrix3< U > &m)
constexpr const Vector3< T > &	operator[] (int row) const noexcept
	row access
constexpr Vector3< T > &	operator[] (int row) noexcept
constexpr Vector3< T >	col (int i) const noexcept
	column access
constexpr T	trace () const noexcept
	computes trace of the matrix
constexpr T	normSq () const noexcept
	compute sum of squared matrix elements
constexpr auto	norm () const noexcept
constexpr T	det () const noexcept
	computes determinant of the matrix
constexpr Matrix3< T > inverse() const noexcept MR_REQUIRES_IF_SUPPORTED(!std constexpr Matrix3< T >	transposed () const noexcept
	computes inverse matrix

Static Public Member Functions
static constexpr Matrix3	zero () noexcept
static constexpr Matrix3	identity () noexcept
static constexpr Matrix3	scale (T s) noexcept
	returns a matrix that scales uniformly
static constexpr Matrix3	scale (T sx, T sy, T sz) noexcept
	returns a matrix that has its own scale along each axis
static constexpr Matrix3	scale (const Vector3< T > &s) noexcept
static constexpr Matrix3	fromColumns (const Vector3< T > &x, const Vector3< T > &y, const Vector3< T > &z) noexcept

Public Attributes
Vector3< T >	x { 1, 0, 0 }
	rows, identity matrix by default
Vector3< T >	y { 0, 1, 0 }
Vector3< T >	z { 0, 0, 1 }

Static Public Attributes
static constexpr Matrix3 static rotation(const Vector3< T > &axis, T angle) noexcept MR_REQUIRES_IF_SUPPORTED(std constexpr Matrix3 static rotation(const Vector3< T > &from, const Vector3< T > &to) noexcept MR_REQUIRES_IF_SUPPORTED(std constexpr Matrix3 static rotationFromEuler(const Vector3< T > &eulerAngles) noexcept MR_REQUIRES_IF_SUPPORTED(std constexpr Matrix3 static approximateLinearRotationMatrixFromEuler(const Vector3< T > &eulerAngles) noexcept MR_REQUIRES_IF_SUPPORTED(std constexpr Matrix	fromRows )(const Vector3< T > &x, const Vector3< T > &y, const Vector3< T > &z) noexcept
	creates matrix representing rotation around given axis on given angle

Friends
QR qr() const noexcept MR_REQUIRES_IF_SUPPORTED(!std friend constexpr bool	operator== (const Matrix3< T > &a, const Matrix3< T > &b)
	decompose this matrix on the product Q*R, where Q is orthogonal and R is upper triangular
constexpr bool	operator!= (const Matrix3< T > &a, const Matrix3< T > &b)
constexpr auto	operator+ (const Matrix3< T > &a, const Matrix3< T > &b) -> Matrix3< decltype(std::declval< T >()+std::declval< T >())>
	NOTE: We use std::declval() in the operators below because libclang 18 in our binding generator is bugged and chokes on decltyping a.x and such. TODO fix this when we update libclang.
constexpr auto	operator- (const Matrix3< T > &a, const Matrix3< T > &b) -> Matrix3< decltype(std::declval< T >() - std::declval< T >())>
constexpr auto	operator* (T a, const Matrix3< T > &b) -> Matrix3< decltype(std::declval< T >() *std::declval< T >())>
constexpr auto	operator* (const Matrix3< T > &b, T a) -> Matrix3< decltype(std::declval< T >() *std::declval< T >())>
constexpr auto	operator/ (Matrix3< T > b, T a) -> Matrix3< decltype(std::declval< T >()/std::declval< T >())>
constexpr Matrix3< T > &	operator+= (Matrix3< T > &a, const Matrix3< T > &b)
constexpr Matrix3< T > &	operator-= (Matrix3< T > &a, const Matrix3< T > &b)
constexpr Matrix3< T > &	operator*= (Matrix3< T > &a, T b)
constexpr Matrix3< T > &	operator/= (Matrix3< T > &a, T b)
constexpr auto	operator* (const Matrix3< T > &a, const Vector3< T > &b) -> Vector3< decltype(dot(std::declval< Vector3< T > >(), std::declval< Vector3< T > >()))>
	x = a * b
constexpr auto	operator* (const Matrix3< T > &a, const Matrix3< T > &b) -> Matrix3< decltype(dot(std::declval< Vector3< T > >(), std::declval< Vector3< T > >()))>
	product of two matrices
std::ostream &	operator<< (std::ostream &s, const Matrix3 &mat)
std::istream &	operator>> (std::istream &s, Matrix3 &mat)

Related Symbols
(Note that these are not member symbols.)
template<typename T>
auto	dot (const Matrix3< T > &a, const Matrix3< T > &b) -> decltype(dot(a.x, b.x))
	double-dot product: x = a : b
template<typename T>
Matrix3< T >	outer (const Vector3< T > &a, const Vector3< T > &b)
	x = a * b^T

Detailed Description

template<typename T>
struct MR::Matrix3< T >

arbitrary 3x3 matrix

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

• MRMesh/MRMatrix3.h