• Adobe After Effects Expressions

  Change the width only in the horizontal direction by slider

  Posted by Arti Krakow on January 15, 2018 at 7:24 pm

  Hello guys,

  could you help me please with one expression which i can’t figure out?
  I have an animated bar with text in another layer and I would like to change the width of the bar only in the horizontal direction by slider and only between keyframes 3 and 4 (the static part of the animation). For now, the first part of expression works great, but the second part doesn`t, width remains the same until the end of the animation. I’m a newbie in Java, so can you someone help me?

  Thank you in advance

  Arti

  if (numKeys >=6 ) {
t1 = key(2).time;
t2 = key(3).time;
slider = thisComp.layer("Controls").effect("Scale width")("Slider");
v1 = [value[0], value[1]];
v2 = [slider, value[1]];
easeOut(time, t1, t2, v1, v2);
} else if (numKeys >=6){
t4 = key(4).time;
t5 = key(5).time;
slider = thisComp.layer("Controls").effect("Scale width")("Slider");
easeIn(time, t4, t5, v1, v2)
}

  Arti Krakow replied 8 years, 3 months ago 2 Members · 2 Replies
• 2 Replies

• 

  Matt Volp

  January 23, 2018 at 4:02 am

  Try this (untested):
  
  slider = thisComp.layer(“Controls”).effect(“Scale width”)(“Slider”);
  t1 = key(2).time;
  t2 = key(3).time;
  t4 = key(4).time;
  t5 = key(5).time;
  v1 = [value[0], value[1]];
  v2 = [slider, value[1]];

  if (numKeys >=6 )
  easeOut(time, t1, t2, v1, v2);
  else
  easeIn(time, t4, t5, v1, v2)

  Matt
• 

  Arti Krakow

  January 23, 2018 at 4:05 pm

  Hello, thank you for your help, but your expression isn`t work. But today I finally figured out this problem. This script is works great for me.

  Thanks

  AK

  slider = thisComp.layer("Controls").effect("Scale width")("Slider");
t1 = key(2).time;
t2 = key(3).time;
t4 = key(4).time;
t5 = key(5).time;
v1 = [value[0], value[1]];
v2 = [slider, value[1]];
v3 = [slider, value[1]];
v4 = [value[1], value[1]];
if (time < key(4).time) { easeOut(time, t1, t2, v1, v2); } else if (time < key(5).time) { easeIn(time, t4, t5, v3, v4) } else [key(6).time, value[1]];

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