Geom::Matrix Class Reference

The Matrix class. More...

Public Member Functions
	Matrix ()
	Matrix (Matrix const &m)
	Matrix (Coord c0, Coord c1, Coord c2, Coord c3, Coord c4, Coord c5)
	Matrix (Scale const &sm)
	Matrix (Rotate const &r)
	Matrix (Translate const &tm)
Matrix &	assign (Coord const *array)
Coord *	copyto (Coord *array) const
Coord	descrim () const
Coord	descrim2 () const
Coord	det () const
double	expansion () const
double	expansionX () const
double	expansionY () const
Matrix	inverse () const
bool	is_rotation (double const eps=Geom_EPSILON) const
bool	is_scale (double const eps=Geom_EPSILON) const
bool	is_translation (Coord const eps=Geom_EPSILON) const
bool	is_uniform_scale (double const eps=Geom_EPSILON) const
Matrix &	operator*= (Matrix const &other)
Matrix &	operator*= (Scale const &other)
Matrix &	operator*= (Translate const &other)
Matrix &	operator= (Matrix const &m)
Coord &	operator[] (int const i)
Coord	operator[] (int const i) const
void	set_identity ()
void	set_translation (Point const &loc)
void	set_x_axis (Point const &vec)
void	set_y_axis (Point const &vec)
bool	test_identity () const
Point	translation () const
Point	x_axis () const
Point	y_axis () const

Detailed Description

The Matrix class.

For purposes of multiplication, points should be thought of as row vectors

to be right-multiplied by transformation matrices of the form

(so the columns of the matrix correspond to the columns (elements) of the result, and the rows of the matrix correspond to columns (elements) of the "input").

Constructor & Destructor Documentation

Geom::Matrix::Matrix ( )

explicit

Geom::Matrix::Matrix

(

Matrix const &

m

)

Geom::Matrix::Matrix	(	Coord	c0,
		Coord	c1,
		Coord	c2,
		Coord	c3,
		Coord	c4,
		Coord	c5
	)

Geom::Matrix::Matrix ( Scale const &  sm )

explicit

Geom::Matrix::Matrix ( Rotate const &  r )

explicit

Geom::Matrix::Matrix ( Translate const &  tm )

explicit

Member Function Documentation

Matrix& Geom::Matrix::assign

(

Coord const *

array

)

Coord* Geom::Matrix::copyto

(

Coord *

array

)

const

Coord Geom::Matrix::descrim

(

)

const

Coord Geom::Matrix::descrim2

(

)

const

Coord Geom::Matrix::det

(

)

const

double Geom::Matrix::expansion

(

)

const

double Geom::Matrix::expansionX

(

)

const

double Geom::Matrix::expansionY

(

)

const

Matrix Geom::Matrix::inverse

(

)

const

bool Geom::Matrix::is_rotation

(

double const

eps = Geom_EPSILON

)

const

bool Geom::Matrix::is_scale

(

double const

eps = Geom_EPSILON

)

const

bool Geom::Matrix::is_translation

(

Coord const

eps = Geom_EPSILON

)

const

bool Geom::Matrix::is_uniform_scale

(

double const

eps = Geom_EPSILON

)

const

Matrix& Geom::Matrix::operator*=

(

Matrix const &

other

)

Matrix& Geom::Matrix::operator*=

(

Scale const &

other

)

Matrix& Geom::Matrix::operator*=

(

Translate const &

other

)

Matrix& Geom::Matrix::operator=

(

Matrix const &

m

)

Coord& Geom::Matrix::operator[]

(

int const

i

)

Coord Geom::Matrix::operator[]

(

int const

i

)

const

void Geom::Matrix::set_identity

(

)

void Geom::Matrix::set_translation

(

Point const &

loc

)

void Geom::Matrix::set_x_axis

(

Point const &

vec

)

void Geom::Matrix::set_y_axis

(

Point const &

vec

)

bool Geom::Matrix::test_identity

(

)

const

Point Geom::Matrix::translation

(

)

const

Point Geom::Matrix::x_axis

(

)

const

Point Geom::Matrix::y_axis

(

)

const