Matrix Class Reference
[System]

Four-by-four matrix with multiplication and inversion. More...

#include <Matrix.hpp>

List of all members.

Public Member Functions
	Matrix ()
	Matrix (float a0, float a1, float a2, float a3, float b0, float b1, float b2, float b3, float c0, float c1, float c2, float c3, float d0, float d1, float d2, float d3)
float	getDeterminant () const
int	getColumns () const
Matrix	getInverse () const
int	getRows () const
int	getSize () const
Matrix	getTranspose () const
float &	operator() (int i, int j)
float	operator() (int i, int j) const
void	print ()
void	set (float array[16])
void	toArray (float *array)
Protected Member Functions
Matrix	getSubmatrix (int i, int j) const
float	det (int n) const
Private Member Functions
	Matrix (int size)
Private Attributes
float	arr [4][4]
int	size
Friends
Matrix	operator* (const Matrix &A, const Matrix &B)
Vector	operator* (const Matrix &A, const Vector &B)

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Detailed Description

Four-by-four matrix with multiplication and inversion.

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Constructor & Destructor Documentation

Matrix

(

)

Creates the identity matrix.

Matrix	(	float	a0,
		float	a1,
		float	a2,
		float	a3,
		float	b0,
		float	b1,
		float	b2,
		float	b3,
		float	c0,
		float	c1,
		float	c2,
		float	c3,
		float	d0,
		float	d1,
		float	d2,
		float	d3
	)

Creates a matrix from explicit values.

Matrix

(

int

size

)

[private]

Creates an uninitialized matrix

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Member Function Documentation

float det

(

int

n

)

const [protected]

Calculate the determinant of a part of the matrix.

int getColumns

(

)

const [inline]

Returns:

the number of columns

float getDeterminant

(

)

const [inline]

Calculate the determinant of the entire matrix.

Matrix getInverse

(

)

const

Get the inverse of this matrix.

int getRows

(

)

const [inline]

Returns:

the number of rows.

Matrix getSubmatrix	(	int	i,
		int	j
	)			const [protected]

Returns:

a new matrix with row i and column j deleted.

Matrix getTranspose

(

)

const

Returns:

matrix with rows and columns switched.

float operator()	(	int	i,
		int	j
	)			const

Returns one of the elements in the matrix.

float & operator()	(	int	i,
		int	j
	)

Returns one of the elements in the matrix.

void print

(

)

Pretty prints the matrix to standard out.

void set

(

float

array[16]

)

Sets the Matrix from values in the array (column-major order).

void toArray

(

float *

array

)

Puts the matrix into a single-subscript array (column-major order).

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Friends And Related Function Documentation

Vector operator*	(	const Matrix &	A,
		const Vector &	B
	)			[friend]

Multiplies a matrix with a vector.

Matrix operator*	(	const Matrix &	A,
		const Matrix &	B
	)			[friend]

Multiplies two matrices together.

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

• Matrix.hpp
• Matrix.cpp