Mat23 (Nape Physics Library)

type: class

2D Matrix class representing affine transformations:

Note that in AS3, flash.geom.Matrix has 'b' and 'c' swapped! so if you are converting between flash.geom.Matrix and nape.geom.Mat23 you should use the methods provided to avoid any mistakes with this.

Static Methods

Create a Mat23 matrix from a given AS3 flash.geom.Matrix.

Construct a Mat23 representing a clockwise rotation.

Construct a Mat23 representing a scaling

Construct a Mat23 representing a translation

Constructor

Construct new Mat23.

Instance Properties

The (1,1) entry in Mat23:

The (1,2) entry in Mat23:

The (2,1) entry in Mat23:

The (2,2) entry in Mat23:

(readonly) The determinant of this matrix.

The (1,3) entry in Mat23 which represents x translation

The (2,3) entry in Mat23 which represents y translation

Instance Methods

Concatenate matrices (left-multiplication), returning new Mat23.

Produce copy of this Mat23

Determine if matrix is equiorthogonal

Equiorthogonalise matrix.

Compute the inverse of this matrix, returning the inverse in a new

Perform inverse transformation with Vec2, returning new Vec2.

Determine if matrix is orthogonal

Orthogonalise matrix.

Reset matrix to identity.

Set values of matrix from another.

Set values of matrix from numbers.

Determine if the matrix is singular.

Create an AS3 flash.geom.Matrix from this Mat23.

Transform a Vec2 by this matrix in new Vec2.

Compute the transpose of this matrix, returning the transpose in a new

nape.geom.Mat23

Static Methods

static function fromMatrix(matrix:flash.geom.Matrix):Mat23

static function rotation(angle:Float):Mat23

static function scale(sx:Float, sy:Float):Mat23

static function translation(tx:Float, ty:Float):Mat23

Constructor

Instance Properties

var a : Float = 1

var b : Float = 0

var c : Float = 0

var d : Float = 1

readonly var determinant : Float = 1

var tx : Float = 0

var ty : Float = 0

Instance Methods

function concat(matrix:Mat23):Mat23

function copy():Mat23

function equiorthogonal():Bool

function equiorthogonalise():Mat23

function inverse():Mat23

function inverseTransform(point:Vec2, noTranslation:Bool = false, weak:Bool = null):Vec2

function orthogonal():Bool

function orthogonalise():Mat23

inline function reset():Mat23

function set(matrix:Mat23):Mat23

function setAs(a:Float = 1, b:Float = 0, c:Float = 0, d:Float = 1, tx:Float = 0, ty:Float = 0):Mat23

function singular():Bool

function toMatrix(output:flash.geom.Matrix = null):flash.geom.Matrix

function transform(point:Vec2, noTranslation:Bool = false, weak:Bool = null):Vec2

function transpose():Mat23