#include <nnm.hpp>

Public Member Functions
constexpr	Transform2 ()
template<typename Other>
constexpr	Transform2 (const Transform2< Other > &transform)
constexpr	Transform2 (const Matrix3< Real > &matrix)
constexpr Real	trace () const
constexpr Real	determinant () const
constexpr Transform2	unchecked_inverse () const
constexpr std::optional< Transform2 >	inverse () const
constexpr bool	valid () const
constexpr bool	affine () const
constexpr Basis2< Real >	basis () const
constexpr Vector2< Real >	translation () const
constexpr Transform2	translate (const Vector2< Real > &offset) const
constexpr Transform2	translate_local (const Vector2< Real > &offset) const
Transform2	rotate (const Real angle) const
Transform2	rotate_local (const Real angle) const
constexpr Transform2	scale (const Vector2< Real > &factor) const
constexpr Transform2	scale_local (const Vector2< Real > &factor) const
constexpr Transform2	shear_x (const Real factor) const
constexpr Transform2	shear_x_local (const Real factor) const
constexpr Transform2	shear_y (const Real factor) const
constexpr Transform2	shear_y_local (const Real factor) const
constexpr Transform2	transform (const Transform2 &by) const
constexpr Transform2	transform_local (const Transform2 &by) const
constexpr bool	approx_equal (const Transform2 &other) const
constexpr const Vector3< Real > &	at (const uint8_t column) const
constexpr Vector3< Real > &	at (const uint8_t column)
constexpr const Real &	at (const uint8_t column, const uint8_t row) const
constexpr Real &	at (const uint8_t column, const uint8_t row)
constexpr const Vector3< Real > &	operator[] (const uint8_t column) const
constexpr Vector3< Real > &	operator[] (const uint8_t column)
constexpr bool	operator== (const Transform2 &other) const
constexpr bool	operator!= (const Transform2 &other) const
constexpr bool	operator< (const Transform2 &other) const

Static Public Member Functions
static constexpr Transform2	from_basis_translation (const Basis2< Real > &basis, const Vector2< Real > &translation)
static constexpr Transform2	from_basis (const Basis2< Real > &basis)
static constexpr Transform2	from_translation (const Vector2< Real > &translation)
static Transform2	from_rotation (const Real angle)
static constexpr Transform2	from_scale (const Vector2< Real > &factor)
static constexpr Transform2	from_shear_x (const Real factor)
static constexpr Transform2	from_shear_y (const Real factor)

Public Attributes
Matrix3< Real >	matrix

Detailed Description

template<typename Real>
class nnm::Transform2< Real >

Two-dimensional transformation matrix.

Template Parameters

Real	Floating-point type.

Constructor & Destructor Documentation

◆ Transform2() [1/3]

template<typename Real>

nnm::Transform2< Real >::Transform2 ( )

inlineconstexpr

Initialize with identity.

◆ Transform2() [2/3]

template<typename Real>

template<typename Other>

nnm::Transform2< Real >::Transform2 ( const Transform2< Other > & transform )

inlineexplicitconstexpr

Cast from other transform type.

Template Parameters

Other Other transform type.

Parameters

transform Transform to cast from.

◆ Transform2() [3/3]

template<typename Real>

nnm::Transform2< Real >::Transform2 ( const Matrix3< Real > & matrix )

inlineexplicitconstexpr

Initialize from 3x3 matrix. No validation is done.

Parameters

matrix 3x3 matrix.

Member Function Documentation

◆ affine()

template<typename Real>

bool nnm::Transform2< Real >::affine ( ) const

inlinenodiscardconstexpr

If the transform is affine. A transform is affine if all lines remain straight and parallel lines are preserved.

Returns: True if affine, false otherwise.

◆ approx_equal()

template<typename Real>

bool nnm::Transform2< Real >::approx_equal ( const Transform2< Real > & other ) const

inlinenodiscardconstexpr

Element-wise approximately equal.

Parameters

other Other transform.

Returns: True if approximately equal, false otherwise.

◆ at() [1/4]

template<typename Real>

Vector3< Real > & nnm::Transform2< Real >::at ( const uint8_t column )

inlineconstexpr

Reference to column

Parameters

column Column.

Returns: Reference.

◆ at() [2/4]

template<typename Real>

const Vector3< Real > & nnm::Transform2< Real >::at ( const uint8_t column ) const

inlinenodiscardconstexpr

Constant reference to column at index.

Parameters

column Column.

Returns: Constant reference.

◆ at() [3/4]

template<typename Real>

Real & nnm::Transform2< Real >::at	(	const uint8_t	column,
		const uint8_t	row )

inlineconstexpr

Reference to element at column and row.

Parameters

column	Column.
row	Row.

Returns: Reference.

◆ at() [4/4]

template<typename Real>

const Real & nnm::Transform2< Real >::at	(	const uint8_t	column,
		const uint8_t	row ) const

inlinenodiscardconstexpr

Constant reference to element at column and row.

Parameters

column	Column.
row	Row.

Returns: Constant reference.

◆ basis()

template<typename Real>

Basis2< Real > nnm::Transform2< Real >::basis ( ) const

inlinenodiscardconstexpr

Two-dimensional basis sub-matrix.

Returns: Basis.

◆ determinant()

template<typename Real>

Real nnm::Transform2< Real >::determinant ( ) const

inlinenodiscardconstexpr

Determinant.

Returns: Result.

◆ from_basis()

template<typename Real>

constexpr Transform2 nnm::Transform2< Real >::from_basis ( const Basis2< Real > & basis )

inlinestaticconstexpr

Transform with basis.

Parameters

basis Basis.

Returns: Result.

◆ from_basis_translation()

template<typename Real>

constexpr Transform2 nnm::Transform2< Real >::from_basis_translation	(	const Basis2< Real > &	basis,
		const Vector2< Real > &	translation )

inlinestaticconstexpr

Transform from two-dimensional basis and two-dimension translation. No validation is done.

Parameters

basis	Basis.
translation	Translation.

Returns: Result.

◆ from_rotation()

template<typename Real>

Transform2 nnm::Transform2< Real >::from_rotation ( const Real angle )

inlinestatic

Transform with rotation.

Parameters

angle Angle in radians.

Returns: Result.

◆ from_scale()

template<typename Real>

constexpr Transform2 nnm::Transform2< Real >::from_scale ( const Vector2< Real > & factor )

inlinestaticconstexpr

Transform with scale.

Parameters

factor Scale factor.

Returns: Result.

◆ from_shear_x()

template<typename Real>

constexpr Transform2 nnm::Transform2< Real >::from_shear_x ( const Real factor )

inlinestaticconstexpr

Transform with shear along x-axis.

Parameters

factor Factor.

Returns: Result.

◆ from_shear_y()

template<typename Real>

constexpr Transform2 nnm::Transform2< Real >::from_shear_y ( const Real factor )

inlinestaticconstexpr

Transform with shear along y-axis.

Parameters

factor factor.

Returns: Result.

◆ from_translation()

template<typename Real>

constexpr Transform2 nnm::Transform2< Real >::from_translation ( const Vector2< Real > & translation )

inlinestaticconstexpr

Transform with translation

Parameters

translation Translation

Returns: Result.

◆ inverse()

template<typename Real>

std::optional< Transform2 > nnm::Transform2< Real >::inverse ( ) const

inlinenodiscardconstexpr

Inverse which returns null if there is none.

Returns: Inverse if there is one, null if not.

◆ operator!=()

template<typename Real>

bool nnm::Transform2< Real >::operator!= ( const Transform2< Real > & other ) const

inlinenodiscardconstexpr

Element-wise inequality.

Parameters

other Other transform.

Returns: True if not equal, false otherwise.

◆ operator<()

template<typename Real>

bool nnm::Transform2< Real >::operator< ( const Transform2< Real > & other ) const

inlinenodiscardconstexpr

Lexicographical comparison between elements.

Parameters

other Other transform.

Returns: True if less than, false otherwise.

◆ operator==()

template<typename Real>

bool nnm::Transform2< Real >::operator== ( const Transform2< Real > & other ) const

inlinenodiscardconstexpr

Element-wise equality.

Parameters

other Other transform.

Returns: True if equal, false otherwise.

◆ operator[]() [1/2]

template<typename Real>

Vector3< Real > & nnm::Transform2< Real >::operator[] ( const uint8_t column )

inlineconstexpr

Reference to column at index.

Parameters

column Column.

Returns: Reference.

◆ operator[]() [2/2]

template<typename Real>

const Vector3< Real > & nnm::Transform2< Real >::operator[] ( const uint8_t column ) const

inlinenodiscardconstexpr

Constant reference to column at index.

Parameters

column Column.

Returns: Constant reference.

◆ rotate()

template<typename Real>

Transform2 nnm::Transform2< Real >::rotate ( const Real angle ) const

inlinenodiscard

Rotate by angle.

Parameters

angle Angle in radians.

Returns: Result.

◆ rotate_local()

template<typename Real>

Transform2 nnm::Transform2< Real >::rotate_local ( const Real angle ) const

inlinenodiscard

Local rotate by angle.

Parameters

angle Angle in radians.

Returns: Result.

◆ scale()

template<typename Real>

Transform2 nnm::Transform2< Real >::scale ( const Vector2< Real > & factor ) const

inlinenodiscardconstexpr

Scale by factor.

Parameters

factor Scale factor.

Returns: Result.

◆ scale_local()

template<typename Real>

Transform2 nnm::Transform2< Real >::scale_local ( const Vector2< Real > & factor ) const

inlinenodiscardconstexpr

Local scale by factor.

Parameters

factor Scale factor.

Returns: Result.

◆ shear_x()

template<typename Real>

Transform2 nnm::Transform2< Real >::shear_x ( const Real factor ) const

inlinenodiscardconstexpr

Shear along x-axis.

Parameters

factor factor.

Returns: Result.

◆ shear_x_local()

template<typename Real>

Transform2 nnm::Transform2< Real >::shear_x_local ( const Real factor ) const

inlinenodiscardconstexpr

Local shear along x-axis.

Parameters

factor Factor.

Returns: Result.

◆ shear_y()

template<typename Real>

Transform2 nnm::Transform2< Real >::shear_y ( const Real factor ) const

inlinenodiscardconstexpr

Shear along y-axis.

Parameters

factor Factor.

Returns: Result.

◆ shear_y_local()

template<typename Real>

Transform2 nnm::Transform2< Real >::shear_y_local ( const Real factor ) const

inlinenodiscardconstexpr

Local shear along y-axis.

Parameters

factor Factor.

Returns: Result.

◆ trace()

template<typename Real>

Real nnm::Transform2< Real >::trace ( ) const

inlinenodiscardconstexpr

Trace which is the sum of the matrix diagonal.

Returns: Result.

◆ transform()

template<typename Real>

Transform2 nnm::Transform2< Real >::transform ( const Transform2< Real > & by ) const

inlinenodiscardconstexpr

Transform by another transform.

Parameters

by	Transform to transform by.

Returns: Result.

◆ transform_local()

template<typename Real>

Transform2 nnm::Transform2< Real >::transform_local ( const Transform2< Real > & by ) const

inlinenodiscardconstexpr

Local transform by another transform.

Parameters

by	Transform to transform by.

Returns: Result.

◆ translate()

template<typename Real>

Transform2 nnm::Transform2< Real >::translate ( const Vector2< Real > & offset ) const

inlinenodiscardconstexpr

Translate.

Parameters

offset Offset.

Returns: Result.

◆ translate_local()

template<typename Real>

Transform2 nnm::Transform2< Real >::translate_local ( const Vector2< Real > & offset ) const

inlinenodiscardconstexpr

Local translate.

Parameters

offset Offset.

Returns: Result.

◆ translation()

template<typename Real>

Vector2< Real > nnm::Transform2< Real >::translation ( ) const

inlinenodiscardconstexpr

Translation of the transform.

Returns: Resulting two-dimensional translation vector.

◆ unchecked_inverse()

template<typename Real>

Transform2 nnm::Transform2< Real >::unchecked_inverse ( ) const

inlinenodiscardconstexpr

Inverse without checking if there is one.

Returns: Result.

◆ valid()

template<typename Real>

bool nnm::Transform2< Real >::valid ( ) const

inlinenodiscardconstexpr

If the transform is valid.

Returns: True if valid, false otherwise.

Member Data Documentation

◆ matrix

template<typename Real>

Matrix3<Real> nnm::Transform2< Real >::matrix

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

include/nnm/nnm.hpp

Public Member Functions

Static Public Member Functions

Public Attributes

Detailed Description

Constructor & Destructor Documentation

◆ Transform2() [1/3]

◆ Transform2() [2/3]

◆ Transform2() [3/3]

Member Function Documentation

◆ affine()

◆ approx_equal()

◆ at() [1/4]

◆ at() [2/4]

◆ at() [3/4]

◆ at() [4/4]

◆ basis()

◆ determinant()

◆ from_basis()

◆ from_basis_translation()

◆ from_rotation()

◆ from_scale()

◆ from_shear_x()

◆ from_shear_y()

◆ from_translation()

◆ inverse()

◆ operator!=()

◆ operator<()

◆ operator==()

◆ operator[]() [1/2]

◆ operator[]() [2/2]

◆ rotate()

◆ rotate_local()

◆ scale()

◆ scale_local()

◆ shear_x()

◆ shear_x_local()

◆ shear_y()

◆ shear_y_local()

◆ trace()

◆ transform()

◆ transform_local()

◆ translate()

◆ translate_local()

◆ translation()

◆ unchecked_inverse()

◆ valid()

Member Data Documentation

◆ matrix