active::geometry::Matrix4x4 Class Reference

A 4x4 matrix class. More...

#include <Matrix4x4.h>

Public Types
using	row_t = std::array<double, 4>
using	base_t = std::array<row_t, 4>
using	Unique = std::unique_ptr<Matrix4x4>
	Unique pointer.
using	Shared = std::shared_ptr<Matrix4x4>
	Shared pointer.
using	Option = std::optional<Matrix4x4>
	Optional.

Public Member Functions
	Matrix4x4 ()
	Matrix4x4 (double a1, double b1, double c1, double d1, double a2, double b2, double c2, double d2, double a3, double b3, double c3, double d3, double a4, double b4, double c4, double d4)
Matrix4x4 &	operator= (const Matrix4x4 &source)
bool	operator== (const Matrix4x4 &ref) const
bool	operator!= (const Matrix4x4 &ref) const
Matrix4x4	operator* (const Matrix4x4 &ref) const
Matrix4x4 &	operator*= (const Matrix4x4 &ref)
row_t	operator[] (unsigned short index)
double &	operator() (unsigned short row, unsigned short col)
const double &	operator() (unsigned short row, unsigned short col) const
Matrix4x4	getInverse () const
double	getDeterminant () const

Static Public Member Functions
static Matrix4x4	createXRotate (const double &angle)
static Matrix4x4	createYRotate (const double &angle)
static Matrix4x4	createZRotate (const double &angle)
static Matrix4x4	createScale (const double &x, const double &y, const double &z)
static Matrix4x4	createTranslate (const double &x, const double &y, const double &z)
static Matrix4x4	createIdentity ()

Protected Member Functions
Matrix3x3	getSubmatrix (unsigned short row, unsigned short col) const

Detailed Description

A 4x4 matrix class.

Constructor & Destructor Documentation

Matrix4x4() [1/2]

Matrix4x4::Matrix4x4

(

)

Constructor

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Matrix4x4() [2/2]

Matrix4x4::Matrix4x4	(	double	a1,
		double	b1,
		double	c1,
		double	d1,
		double	a2,
		double	b2,
		double	c2,
		double	d2,
		double	a3,
		double	b3,
		double	c3,
		double	d3,
		double	a4,
		double	b4,
		double	c4,
		double	d4 )

Constructor

Member Function Documentation

createIdentity()

Matrix4x4 Matrix4x4::createIdentity ( )

static

Create an identity matrix

Returns

The requested identity matrix

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createScale()

Matrix4x4 Matrix4x4::createScale ( const double & x, const double & y, const double & z )

static

Create a scaling matrix

Parameters

x	The scale in the x axis
y	The scale in the y axis
z	The scale in the z axis

Returns

The requested scaling matrix

createTranslate()

Matrix4x4 Matrix4x4::createTranslate ( const double & x, const double & y, const double & z )

static

Create a translation matrix

Parameters

x	The offset in the x axis
y	The offset in the y axis
z	The offset in the z axis

Returns

The requested transformation matrix

createXRotate()

Matrix4x4 Matrix4x4::createXRotate ( const double & angle )

static

Create a rotation matrix about the x axis

Parameters

angle

The rotation angle

Returns

The requested rotation matrix

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createYRotate()

Matrix4x4 Matrix4x4::createYRotate ( const double & angle )

static

Create a rotation matrix about the y axis

Parameters

angle

The rotation angle

Returns

The requested rotation matrix

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createZRotate()

Matrix4x4 Matrix4x4::createZRotate ( const double & angle )

static

Create a rotation matrix about the z axis

Parameters

angle

The rotation angle

Returns

The requested rotation matrix

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getDeterminant()

double Matrix4x4::getDeterminant

(

)

const

Get the determinant

Returns

The matrix determinant

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getInverse()

Matrix4x4 Matrix4x4::getInverse

(

)

const

Get the inverse matrix (or identity if none exists)

Returns

An inverse matrix

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getSubmatrix()

Matrix3x3 Matrix4x4::getSubmatrix ( unsigned short row, unsigned short col ) const

protected

Get the requested submatrix

Parameters

row	Row position
col	Column position

Returns

The requested submatrix

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operator!=()

bool Matrix4x4::operator!=

(

const Matrix4x4 &

ref

)

const

Inequality operator

Parameters

ref	The object to compare

Returns

True if the objects are not identical

operator()() [1/2]

double & active::geometry::Matrix4x4::operator() ( unsigned short row, unsigned short col )

inline

Checked subscript method

Parameters

row	The required row
col	The required column

Returns

The value at the specified position

operator()() [2/2]

const double & active::geometry::Matrix4x4::operator() ( unsigned short row, unsigned short col ) const

inline

Checked subscript method

Parameters

row	The required row
col	The required column

Returns

The value at the specified position

operator*()

Matrix4x4 Matrix4x4::operator*

(

const Matrix4x4 &

ref

)

const

Multiplication operator

Parameters

ref	The matrix to multiply this by

Returns

The result

operator*=()

Matrix4x4 & Matrix4x4::operator*=

(

const Matrix4x4 &

ref

)

Multiplication with assignment operator

Parameters

ref	The matrix to multiply this by

Returns

A reference to this

operator=()

Matrix4x4 & Matrix4x4::operator=

(

const Matrix4x4 &

source

)

Assignment operator

Parameters

source

The object to copy

Returns

A reference to this

operator==()

bool Matrix4x4::operator==

(

const Matrix4x4 &

ref

)

const

Equality operator

Parameters

ref	The object to compare

Returns

True if the objects are identical

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operator[]()

row_t active::geometry::Matrix4x4::operator[] ( unsigned short index )

inline

Unchecked subscript method

Parameters

index

An index into the matrix

Returns

The value at the specified index

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

• /Users/rwessel/Documents/Development/ActiveLib/Active/Geometry/Matrix4x4.h
• /Users/rwessel/Documents/Development/ActiveLib/Active/Geometry/Matrix4x4.cpp