StevEngine::Utilities::Matrix4 Class Reference

4x4 matrix for 3D transformations More...

#include <utilities/Matrix4.hpp>

Public Member Functions
	Matrix4 (double data[4][4])
	Create matrix from raw 4x4 array.
	Matrix4 (const Vector4 &row1, const Vector4 &row2, const Vector4 &row3, const Vector4 &row4)
	Create matrix from row vectors.
	Matrix4 (const Matrix4 &matrix)
	Copy constructor.
	Matrix4 (double v)
	Create matrix filled with value.
	Matrix4 ()
	Create identity matrix.
Vector4	GetRow (int i) const
	Get row vector.
Vector4	GetColumn (int i) const
	Get column vector.
double	GetDeterminant () const
	Calculate matrix determinant.
Matrix4 &	Inverse ()
	Invert this matrix.
Matrix4 &	Transpose ()
	Transpose this matrix.
Matrix4 &	operator= (const Matrix4 &other)
	Assignment.
Matrix4	operator* (const Matrix4 &matrix) const
	Matrix multiplication.
Vector3	operator* (const Vector3 &point) const
	Point transformation.
Matrix4	operator* (const double &value) const
	Scalar multiplication.
Matrix4	operator/ (const double &value) const
	Scalar division.
bool	operator== (const Matrix4 &other) const
	Equality comparison.
	operator std::string () const
	Convert to string.
const float *	data () const
	Get raw float array.

Static Public Member Functions
static Matrix4	Inverse (const Matrix4 &matrix)
	Create inverse of matrix.
static Matrix4	Transpose (const Matrix4 &matrix)
	Create transpose of matrix.
static Matrix4	FromTranslation (const Vector3 &position)
	Create translation matrix.
static Matrix4	FromRotation (const Quaternion &rotation)
	Create rotation matrix.
static Matrix4	FromScale (const Vector3 &scale)
	Create scale matrix.
static Matrix4	FromTranslationRotationScale (const Vector3 &position, const Quaternion &rotation, const Vector3 &scale)
	Create combined TRS matrix.
static Matrix4	FromOrthographic (float width, float height, float clipNear, float clipFar)
	Create orthographic projection.
static Matrix4	FromOrthographic (float left, float right, float bottom, float top, float clipNear, float clipFar)
	Create orthographic projection with bounds.
static Matrix4	FromPerspective (float fovx, float aspect, float clipNear, float clipFar)
	Create perspective projection.

Static Public Attributes
static const Matrix4	identity
	Identity matrix.
static const Matrix4	zero = Matrix4(0.0)
	Zero matrix.

Detailed Description

4x4 matrix for 3D transformations

Implements common matrix operations for 3D transformations including translation, rotation, scaling, and projection matrices.

Constructor & Destructor Documentation

Matrix4() [1/4]

StevEngine::Utilities::Matrix4::Matrix4

(

double

data[4][4]

)

Create matrix from raw 4x4 array.

Parameters

data	4x4 array of values

Matrix4() [2/4]

StevEngine::Utilities::Matrix4::Matrix4	(	const Vector4 &	row1,
		const Vector4 &	row2,
		const Vector4 &	row3,
		const Vector4 &	row4 )

Create matrix from row vectors.

Parameters

row1	First row vector
row2	Second row vector
row3	Third row vector
row4	Fourth row vector

Matrix4() [3/4]

StevEngine::Utilities::Matrix4::Matrix4

(

const Matrix4 &

matrix

)

Copy constructor.

Parameters

matrix

Matrix to copy

Matrix4() [4/4]

StevEngine::Utilities::Matrix4::Matrix4

(

double

v

)

Create matrix filled with value.

Parameters

v	Value to fill with

Member Function Documentation

FromOrthographic() [1/2]

Matrix4 StevEngine::Utilities::Matrix4::FromOrthographic ( float left, float right, float bottom, float top, float clipNear, float clipFar )

static

Create orthographic projection with bounds.

Parameters

left	Left bound
right	Right bound
bottom	Bottom bound
top	Top bound
clipNear	Near clip plane
clipFar	Far clip plane

Returns

Orthographic projection matrix

FromOrthographic() [2/2]

Matrix4 StevEngine::Utilities::Matrix4::FromOrthographic ( float width, float height, float clipNear, float clipFar )

static

Create orthographic projection.

Parameters

width	View width
height	View height
clipNear	Near clip plane
clipFar	Far clip plane

Returns

Orthographic projection matrix

FromPerspective()

Matrix4 StevEngine::Utilities::Matrix4::FromPerspective ( float fovx, float aspect, float clipNear, float clipFar )

static

Create perspective projection.

Parameters

fovx	Horizontal field of view in degrees
aspect	Aspect ratio (width/height)
clipNear	Near clip plane
clipFar	Far clip plane

Returns

Perspective projection matrix

FromRotation()

Matrix4 StevEngine::Utilities::Matrix4::FromRotation ( const Quaternion & rotation )

static

Create rotation matrix.

Parameters

rotation

Rotation quaternion

Returns

Rotation matrix

FromScale()

Matrix4 StevEngine::Utilities::Matrix4::FromScale ( const Vector3 & scale )

static

Create scale matrix.

Parameters

scale

Scale vector

Returns

Scale matrix

FromTranslation()

Matrix4 StevEngine::Utilities::Matrix4::FromTranslation ( const Vector3 & position )

static

Create translation matrix.

Parameters

position

Translation vector

Returns

Translation matrix

FromTranslationRotationScale()

Matrix4 StevEngine::Utilities::Matrix4::FromTranslationRotationScale ( const Vector3 & position, const Quaternion & rotation, const Vector3 & scale )

static

Create combined TRS matrix.

Parameters

position	Translation
rotation	Rotation
scale	Scale

Returns

Combined transformation matrix

GetColumn()

Vector4 StevEngine::Utilities::Matrix4::GetColumn

(

int

i

)

const

Get column vector.

Parameters

i	Column index (0-3)

Returns

Column as Vector4

GetDeterminant()

double StevEngine::Utilities::Matrix4::GetDeterminant

(

)

const

Calculate matrix determinant.

Returns

Determinant value

GetRow()

Vector4 StevEngine::Utilities::Matrix4::GetRow

(

int

i

)

const

Get row vector.

Parameters

i	Row index (0-3)

Returns

Row as Vector4

Inverse() [1/2]

Matrix4 & StevEngine::Utilities::Matrix4::Inverse

(

)

Invert this matrix.

Returns

Reference to this

Inverse() [2/2]

Matrix4 StevEngine::Utilities::Matrix4::Inverse ( const Matrix4 & matrix )

static

Create inverse of matrix.

Parameters

matrix

Matrix to invert

Returns

Inverted matrix

Transpose() [1/2]

Matrix4 & StevEngine::Utilities::Matrix4::Transpose

(

)

Transpose this matrix.

Returns

Reference to this

Transpose() [2/2]

Matrix4 StevEngine::Utilities::Matrix4::Transpose ( const Matrix4 & matrix )

static

Create transpose of matrix.

Parameters

matrix

Matrix to transpose

Returns

Transposed matrix

Member Data Documentation

identity

const Matrix4 StevEngine::Utilities::Matrix4::identity

static

Initial value:

= Matrix4(
        Vector4(1,0,0,0),
        Vector4(0,1,0,0),
        Vector4(0,0,1,0),
        Vector4(0,0,0,1)
    )

Identity matrix.

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

• utilities/Matrix4.hpp
• utilities/Matrix4.cpp