• Adobe After Effects Expressions

  Scaling expression

  Posted by Kevin Reiner on October 18, 2006 at 3:24 am

  This should be a simple expression, but I can’t make it work correctly.

  I have two identical circles. I want to make a scaling effect that when one circle is scaled up, the other circle scales down at the same rate, and then vice versa. So that there is always one big circle and one small circle. I keep getting caught up on the fact that negative values just flip flop the image. (did any of that make sense?)

  Anyone have any clues?

  Thanks in advance,
  Reins

  Julian Sixx replied 19 years, 10 months ago 3 Members · 2 Replies
• 2 Replies

• 

  Mike Clasby

  October 18, 2006 at 3:51 am

  This from Dan should be what you want:

  s = 10000/comp(“Comp name”).layer(“layer 1”).scale[0];
  [s,s]

  Just plugin your layer and comp names (you probably figured that out already). Great expression.
• 

  Julian Sixx

  October 18, 2006 at 3:53 am

  Hi
  pickwhip the scale proberty from C1 to C2.You should have sth. like this now
  thisComp.layer(“Solid”).transform.scale

  now add value- in front of it
  value-thisComp.layer(“Solid”).transform.scale

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