OpenOrienteering::Matrix Class Reference

Dynamically sized matrix of doubles. More...

#include <matrix.h>

Public Member Functions
	Matrix ()
	Constructs a 0x0 matrix. More...
	Matrix (const Matrix &other)
	Copy constructor. More...
	Matrix (int n, int m)
	Constructs a nxm matrix. More...
	~Matrix ()
	Destructs the matrix. More...
void	save (QXmlStreamWriter &xml, const QString &role) const
	Saves the matrix in xml format with the given value of the role attribute. More...
void	load (QXmlStreamReader &xml)
	Loads the matrix in xml format. More...
int	getRows () const
	Returns the number of rows. More...
int	getCols () const
	Returns the number of columns. More...
Matrix &	operator= (const Matrix &other)
	Assignment. More...
void	setSize (int n, int m)
	Changes the size of the matrix. More...
void	setTo (double v)
	Sets all matrix elements to v. More...
void	set (int i, int j, double v)
	Sets a matrix element. More...
double	get (int i, int j) const
	Returns a matrix element. More...
void	swapRows (int a, int b)
	Exchanges the rows with indices a and b. More...
void	subtract (const Matrix &b, Matrix &out) const
	Component-wise subtraction. More...
void	add (const Matrix &b, Matrix &out) const
	Component-wise addition. More...
void	multiply (double b, Matrix &out) const
	Multiplication with scalar factor. More...
void	multiply (const Matrix &b, Matrix &out) const
	Matrix multiplication. More...
void	transpose (Matrix &out)
	Matrix transpose. More...
double	determinant () const
	Calculates the determinant. More...
bool	invert (Matrix &out) const
	Tries to inverts the matrix. More...
void	print () const
	Outputs the matrix to stdout for debugging purposes. More...

Detailed Description

Dynamically sized matrix of doubles.

Constructor & Destructor Documentation

Matrix() [1/3]

OpenOrienteering::Matrix::Matrix ( )

inline

Constructs a 0x0 matrix.

Matrix() [2/3]

OpenOrienteering::Matrix::Matrix ( const Matrix &  other )

inline

Copy constructor.

Matrix() [3/3]

OpenOrienteering::Matrix::Matrix ( int  n, int  m  )

inline

Constructs a nxm matrix.

~Matrix()

OpenOrienteering::Matrix::~Matrix ( )

inline

Destructs the matrix.

Member Function Documentation

add()

void OpenOrienteering::Matrix::add ( const Matrix &  b, Matrix &  out  ) const

inline

Component-wise addition.

determinant()

double OpenOrienteering::Matrix::determinant

(

)

const

Calculates the determinant.

get()

double OpenOrienteering::Matrix::get ( int  i, int  j  ) const

inline

Returns a matrix element.

getCols()

int OpenOrienteering::Matrix::getCols ( ) const

inline

Returns the number of columns.

getRows()

int OpenOrienteering::Matrix::getRows ( ) const

inline

Returns the number of rows.

invert()

bool OpenOrienteering::Matrix::invert

(

Matrix &

out

)

const

Tries to inverts the matrix.

Returns true if successful.

load()

void OpenOrienteering::Matrix::load

(

QXmlStreamReader &

xml

)

Loads the matrix in xml format.

multiply() [1/2]

void OpenOrienteering::Matrix::multiply ( double  b, Matrix &  out  ) const

inline

Multiplication with scalar factor.

multiply() [2/2]

void OpenOrienteering::Matrix::multiply ( const Matrix &  b, Matrix &  out  ) const

inline

Matrix multiplication.

operator=()

Matrix& OpenOrienteering::Matrix::operator= ( const Matrix &  other )

inline

Assignment.

print()

void OpenOrienteering::Matrix::print

(

)

const

Outputs the matrix to stdout for debugging purposes.

save()

void OpenOrienteering::Matrix::save	(	QXmlStreamWriter &	xml,
		const QString &	role
	)		const

Saves the matrix in xml format with the given value of the role attribute.

set()

void OpenOrienteering::Matrix::set ( int  i, int  j, double  v  )

inline

Sets a matrix element.

setSize()

void OpenOrienteering::Matrix::setSize ( int  n, int  m  )

inline

Changes the size of the matrix.

If the new size is different to the old, all matrix elements will be reset to zero.

setTo()

void OpenOrienteering::Matrix::setTo ( double  v )

inline

Sets all matrix elements to v.

subtract()

void OpenOrienteering::Matrix::subtract ( const Matrix &  b, Matrix &  out  ) const

inline

Component-wise subtraction.

swapRows()

void OpenOrienteering::Matrix::swapRows ( int  a, int  b  )

inline

Exchanges the rows with indices a and b.

transpose()

void OpenOrienteering::Matrix::transpose ( Matrix &  out )

inline

Matrix transpose.

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

• src/util/matrix.h (1adacff on 28 Jan 2018)
• src/util/matrix.cpp (1adacff on 28 Jan 2018)