animateShape

Move a shape to a new position/rotation/opacity over time.

Every frame is written with history: "ignore", and one stopping point is marked before the animation starts — so an animation is a single undo step that lands on the *destination*, not a hundred steps ending wherever the user happened to press undo.

Only the numeric top-level fields are interpolated; anything else in the partial (props, meta, parent) is applied once, at the start, because there is no general way to interpolate an arbitrary prop.