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Matrix

Represents a 3x3 transformation matrix in the following form:

a c e ( b d f ) 0 0 1

a number

The a (1, 1) member of the matrix.

b number

The b (2, 1) member of the matrix.

c number

The c (1, 2) member of the matrix.

d number

The d (2, 2) member of the matrix.

e number

The e (1, 3) member of the matrix.

f number

The f (2, 3) member of the matrix.

Constructors

Matrix (a?: number, b?: number, c?: number, d?: number, e?: number, f?: number)

Creates a transformation matrix with the specified parameters.

Parameters

a? number

The a (1, 1) member of the matrix.

b? number

The b (2, 1) member of the matrix.

c? number

The c (1, 2) member of the matrix.

d? number

The d (2, 2) member of the matrix.

e? number

The e (1, 3) member of the matrix.

f? number

The f (2, 3) member of the matrix.

Methods

clone

Creates a new instance with the same element values.

Returns

Matrix - A new Matrix instance with the same element values.

equals

Compares this matrix with another instance.

Parameters

other Matrix

The matrix instance to compare with.

Returns

boolean true if the matrix elements match. Otherwise, returns false.

multiplyCopy

Multiplies the matrix by another one and returns the result as a new instance. The current instance elements are not altered.

Parameters

matrix Matrix

The matrix to multiply by.

Returns

Matrix - The result of the multiplication.

round

Rounds the matrix elements to the specified number of fractional digits.

Parameters

digits number

The number of fractional digits.

Returns

Matrix - The current matrix instance.

toArray

Returns the matrix elements as an [a, b, c, d, e, f] array.

Parameters

digits? number

The number of fractional digits.

Returns

number[] - An array representation of the matrix.

toString

Formats the matrix elements as a string.

Parameters

digits? number

The number of fractional digits.

separator? string

The separator to place between elements.

Returns

string - A string representation of the matrix. For example, "1, 0, 0, 1, 0, 0".

rotate

Creates a transformation matrix for rotation with the specified parameters.

Parameters

angle number

The angle of rotation in decimal degrees. Measured in a clockwise direction with 0 (zero) pointing "right". Negative values or values greater than 360 are normalized.

x number

The center of rotation on the X axis.

y number

The center of rotation on the Y axis.

Returns

Matrix - The transformation matrix for the specified rotation.

scale

Creates a transformation matrix for the scale with the specified parameters.

Parameters

scaleX number

The scale factor on the X axis.

scaleY number

The scale factor on the Y axis.

Returns

Matrix - The transformation matrix for the specified scale.

translate

Creates a transformation matrix for the translation with the specified parameters.

Parameters

x number

The distance to translate along the X axis.

y number

The distance to translate along the Y axis.

Returns

Matrix - The transformation matrix for the specified translation.

unit

Returns the unit (identity) transformation matrix.

Returns

Matrix - The unit (identity) matrix.