Chapter 275: MotionPathPlugin.getAlignMatrix()

Core Idea

Returns a Matrix2D for aligning one element to another, accounting for all (even nested) transforms — apply it to move fromElement so a chosen point on it lines up with a chosen point on toElement.

Reference Tables

Parameter	Type	Description
fromElement	Element | window	element to be aligned
toElement	Element | window	element to align with
fromOrigin	Array (optional)	progress point on fromElement, e.g. [0.5, 0.5] (center)
toOrigin	Array | String	corresponding point on toElement

Returns: Matrix2D (has an apply() method to convert any point).

Connects To

• Align transformOrigin of two elements (Helper): a practical use case built on similar matrix math.