Transformation

A utility class for building transformation matrices.

Constructors

Transformation

(matrix?: Matrix)

Creates a transformation from the specified matrix, if any.

Parameters

matrix?

Matrix

The initial transformation matrix.

Methods

addObserver
Adds an observer to be notified for changes.
Parameters observer GeometryObserver The observer to add.
Returns Transformation The current Arc instance.

clone
Creates a new instance with the same transformation matrix.
Returns Transformation A new Transformation instance with the same matrix.

equals
Compares this transformation with another instance.
Parameters other Transformation The transformation to compare with.
Returns boolean true if the transformation matrix is the same. Otherwise, returns false.

matrix
Gets the current transformation matrix for this transformation.
Returns Matrix The current transformation matrix.

multiply
Multiplies the transformation by another one. The underlying transformation matrix is updated in-place.
Parameters transformation Transformation The transformation to multiply by.
Returns Transformation The current Transformation instance.

observers
Returns the list of observers.
Returns GeometryObserver[] The current observers.

removeObserver
Stops notifying the specified observer for changes.
Parameters observer GeometryObserver The observer to remove.
Returns Transformation The current Arc instance.

resume
Resumes the notification to all observers for changes.
Returns Transformation The current Arc instance.

rotate
Sets the 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. center Point | number[] The center of rotation.
Returns Transformation The current transformation instance.

scale
Sets scale with the specified parameters.
Parameters scaleX number The scale factor on the X axis. scaleY number The scale factor on the Y axis. origin? Point | number[] The scale origin. Defaults to [0, 0].
Returns Transformation The current Transformation instance.

suspend
Suspends the change notifications to all observers.
Returns Transformation The current Arc instance.

translate
Sets 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 Transformation The current transformation instance.