parenting doesn't work

[Suraiya A]

Hello,

I want to animate a sun ray with an arrowhead. Everything is good. But I can not attach the arrow head with the ray body. I parented the head but it stands still. It should move too. Why does not it move?

Thank you.

[Mylenium]

Again a misunderstanding about layers vs. shape layer groups similar to your other post. Parenting connects layers. For anything more you have to use pickwhip expressions. The arrowhead won't follow the wave motion, though. For that you'd need a proper expression that mimics the sine wave.

Mylenium 

[Suraiya A]

oh no! How can I learn elaborately about the differences between shape layer vs layer in AE? Thank you.

[Suraiya A]

Thank you sooooooooooooooo much. Never heard of sin wave expression. Now I know a new thing. Can not wait to learn about it. Thank you.