• Adobe After Effects Expressions

  Scale Linked to X and Y sliders at the same time?

  Posted by Ian Thomson on October 16, 2008 at 9:16 pm

  temp=effect("Separate XYZ Position") ("X Position")+100;
  
  if(temp<0) temp *= -1;
  
  [temp,temp,temp]

  Hello again!

  I got some excellent help for linking a layer Scale property to a slider and keeping the results positive, https://forums.creativecow.net/readpost/227/11350

  Now my more complicated question is this; is it possible to link scale to separate sliders (X position) and (Y position) and both have them affect the scale equally?

  Basically what we’re trying to do is Pan footage (X/Y) and have it automatically scale/crop to fit the comp. Some clips require panning X, some Y, Some both.

  Is it possible to link scale to 2 different values? Or is there a better way to go about this sort of thing?

  Any help here Highly appreciated!!!
  Thanks,
  -Ian

  Brendan Mccullough replied 17 years, 7 months ago 2 Members · 1 Reply
• 1 Reply

• 

  Brendan Mccullough

  October 16, 2008 at 11:44 pm

  x=effect("Separate XYZ Position") ("X Position")+100;
  y=effect("Separate XYZ Position") ("Y Position")+100;
  if(x<0) x *= -1;
  if(y<0) y *= -1;
  if(x>y) [x,x];
  else [y,y];
  

  You can’t have it link to two values at the same time, but what if it was selective? This example only uses the greater of the two values…

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