• Adobe After Effects Expressions

  a vinyl roation and arrow reapting

  Posted by Tielman Dewaele on October 3, 2007 at 1:25 pm

  Heyla,

  I was wandering/curious of its posible to do this:

  I have an arrow(3d) and one vinyl(3d) or lp(whatever its called in english) and counting nrs(3d).

  The arrow fades-in at 2.10
  i used:
  loopOut(type = “cycle”, numKeyframes = 0)

  I want it to stop repeating it at 5 seconds.
  How would i do this.

  The nrs fades-in at 2.10
  They are counting till 50.000, stops at 5 seconds as well.
  Is there away to link these to eachother?

  I now its easy tokeyframe, but ill have to make 10 more.
  The counting will be less or more, the timeline wil be less or more(depending on more text=more seconds)

  Also i want the vinyl to stop at the same time when arrow stops.
  (didnt used expression so far)

  Text counter used:

  startTime = 2; //seconds
  endTime = 5; //seconds
  beginCount = 0;
  endCount = 50000;
  hasCommas = true;
  //–dont modify below here—————-
  function addCommas ( s ){
  if( s.length <= 3 ) return s; else return s.substring(0 , 3) + "," + addCommas(s.substring(3, s.length)); } function reverse( s ){ newStr = ""; for(i = s.length-1; i >= 0; i–)
  newStr += s.charAt(i)
  return newStr;
  }

  val = Math.round (linear(time, startTime, endTime, beginCount, endCount) );
  if( hasCommas )
  reverse (addCommas(reverse( val + “” )))
  else
  val

  (got it from motionworks)

  Anybody that can help me?

  Thanks

  T.

  MacPRo intel quad core 2 G RAM
  External Maxtor & Iomega disks
  AE 7.0, CS PSD & AI
  FCP 5.1 studio
  C4d R10

  Kevin Camp replied 18 years, 10 months ago 2 Members · 1 Reply
• 1 Reply

• 

  Kevin Camp

  October 3, 2007 at 2:08 pm

  something like this may work for you:

  endTime = 5 // end time in seconds;
  if (time < endTime) { loopOut(); }else{ value; } you could link the endTime variable to a slider on a null, then link your other end time variables to the same slider, thus linking all your end time values together. so your first line might look something like this: endTime = thisComp.layer("Null 1").effect("Slider Control")("Slider"); the stop point in the loop will be abrupt, and it will 'jump' to the last keyframed value. this can be acounted for if needed, or avoided if anticipated in the loop keyframe timing. Kevin Camp Designer – KCPQ, KMYQ & KRCW

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