Matrix2D Class Reference

The matrix of transformation in a two-dimensional space. More...

Public Member Functions
	Matrix2D ()
	The default constructor.
self	Shift (number x, number y)
	Shifts the matrix.
self	Rotate (Point2D point, number angle)
	Rotates the matrix.
self	Scale (Point2D point, number xScale, number yScale)
	Scales the matrix.
self	Transform (Matrix2D matrix)
	Transforms according to the matrix.
self	Invert ()
	Inverts matrix.
Matrix2D	Clone ()
	Returns a copy of the object.
boolean	operator== (Matrix2D other)
	Checks for equality.
boolean	operator~= (Matrix2D other)
	Checks for inequality.

Detailed Description

The matrix of transformation in a two-dimensional space.

Member Function Documentation

Rotate()

self Rotate	(	Point2D	point,
		number	angle )

Rotates the matrix.

Parameters

point	Center of rotation.
angle	The angle in radians.

Scale()

self Scale	(	Point2D	point,
		number	xScale,
		number	yScale )

Scales the matrix.

Parameters

point	Shift point.
xScale	The X scale factor.
yScale	The Y scale factor.