matrix2.h File Reference

#include "GeomExport.h"
#include "point2.h"
#include "point3.h"
#include <iosfwd>

Classes
class	Matrix2

Functions
Matrix2	RotateMatrix (float angle)
Matrix2	TransMatrix (const Point2 &p)
Matrix2	ScaleMatrix (const Point2 &s)
Matrix2	Inverse (const Matrix2 &M)
Point2	operator* (const Matrix2 &A, const Point2 &V)
Point2	operator* (const Point2 &V, const Matrix2 &A)
Point2	VectorTransform (const Matrix2 &M, const Point2 &V)

Function Documentation

RotateMatrix()

Matrix2 RotateMatrix

(

float

angle

)

Remarks

Builds an identity matrix and sets the rotation components based on the specified angle.

Parameters:

float angle

Specifies the angle of rotation.

Returns

A new Matrix2 object with the specified rotation angle.

TransMatrix()

Matrix2 TransMatrix

(

const Point2 &

p

)

Remarks

Builds an identity matrix and sets the specified translation components.

Parameters:

const Point2& p

Specifies the translation.

Returns

A new Matrix2 object with the specified translation.

ScaleMatrix()

Matrix2 ScaleMatrix

(

const Point2 &

s

)

Remarks

Builds an identity matrix and sets the specified scaling components.

Parameters:

const Point2& s

Specifies the scale factors.

Returns

A new Matrix2 object with the specified scale.

Inverse()

Matrix2 Inverse

(

const Matrix2 &

M

)

Remarks

Returns the inverse of the specified Matrix2.

Parameters:

const Matrix2& M

Specifies the matrix to return the inverse of.

Returns

The inverse of the specified Matrix2.

operator*() [1/2]

Point2 operator*	(	const Matrix2 &	A,
		const Point2 &	V
	)

Remarks

Transforms the specified Point2 with the specified Matrix2.

Parameters:

const Matrix2& A

The matrix to transform the point with.

const Point2& V

The point to transform.

Returns

The transformed Point2.

operator*() [2/2]

Point2 operator*	(	const Point2 &	V,
		const Matrix2 &	A
	)

Remarks

Transforms the specified Point2 with the specified Matrix2.

Parameters:

const Point2& V

The point to transform. const Matrix2& A

The matrix to transform the point with.

Returns

The transformed Point2.

VectorTransform()

Point2 VectorTransform	(	const Matrix2 &	M,
		const Point2 &	V
	)

Remarks

This method transforms a 2D point by a 2x3 matrix. This is analogous to the 3D case.

Parameters:

const Matrix2& M

The matrix to transform the point with.

const Point2& V

The point to transform.

Returns

The transformed Point2.