• Adobe After Effects Expressions

  rotating and collating animation

  Posted by Rudy Manning on July 8, 2009 at 8:33 pm

  I’m trying to have these icons rotating on a center axis while keeping it’s original Y-Axis stay the same. Also I”m trying to get the icons to scale up as the come to a stop. I’ve tried a couple different things but it’s getting hairy and I have more icons to add.

  Here is a movie sample and a png for reference. Can someone help?

  https://www.pastillastudio.com/pastilla/sample/

  Dan Ebberts replied 16 years, 10 months ago 2 Members · 3 Replies
• 3 Replies

• 

  Dan Ebberts

  July 9, 2009 at 12:40 am

  I think I’d parent the icons to nulls located at the center of rotation. Then give each icon this counter-rotation expression:

  -parent.transform.rotation

  and something like this for scale:

  minSpeed = 0;
  maxSpeed = 700;
  minScale = [50,50];
  maxScale = [125,125];

  s = parent.transform.rotation.speed;
  linear(s,minSpeed,maxSpeed,maxScale,minScale)

  Dan
• 

  Rudy Manning

  July 9, 2009 at 12:57 am

  thank you so much! One more quick question. The rotation works perfectly. I just need
  to figure out the scale part now.

  I put this on my icon on the scale property/
• 

  Dan Ebberts

  July 9, 2009 at 5:27 am

  Yes, but you probably need to adjust the four values at the top to get it to work with your setup.

  DAn

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