• Adobe After Effects Expressions

  Mirroning position

  Posted by Fabio Santos on April 4, 2016 at 2:44 pm

  Hello everyone!

  I have a square in a comp and a circle in other comp. In Main comp, I have a null object to control the position of square and I using the cod bellow, inside the square’s comp.

  L=comp(“man”).layer(“C_feet_rgt”);
  P=value+L.toWorld(L.anchorPoint);
  parent.fromWorld(P);

  When I change the position of square working with the null object in the Main comp, I’d like to circle moves to oposite position of the square.

  How can I mirror the position of a circle?

  Thanks

  Miguel De mendoza replied 10 years, 5 months ago 2 Members · 1 Reply
• 1 Reply

• 

  Miguel De mendoza

  April 4, 2016 at 3:03 pm

  You have to set a reference point on the axis you want to be the center of the mirror. I.E if you want to mirror this objects arround the middle of the comp in the x axis you can write something like this:
  
//in the square
L=comp("man").layer("C_feet_rgt");
center = [comp("man").width /2, 0]
P= center + value+L.toWorld(L.anchorPoint) ;
parent.fromWorld(P);

  //In the circle
L=comp("man").layer("C_feet_rgt");
center = [comp("man").width /2, 0];
squarePos = comp("squareComp").layer("squareLayer").position
P= center - squarePos ;
parent.fromWorld(P);

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