Play with 6 different shape combinations with the size bounded to be tangent with each other.
You can animate position and rotation while the sizes automatically scale to maintain their tangency toward the controller shape.
This collection of shape combinations has a shape (B) with an expression on its size property that keeps it always tangent to the controller shape (A). With these compositions you can create beautiful and even complex shape animations with the satisfying effect given by them never breaking tangency, while doing it by hand would be nearly impossible (I tried).
You can freely animate position, rotation, and size of the controller shapes.
On the bounded shapes you can animate the position, only in some cases the rotation, and never the size because the size is "parented" to the other shape.
Remember to animate the size property, not the scale property, to maintain the tangent bond.
Each composition has a different shape combination and they all behave differently. To understand how they work, just play around a little bit and you'll see it's very easy to understand and use.
