• Adobe After Effects Expressions

  Counting Expresson not working.

  Posted by John Cuevas on February 15, 2012 at 7:58 pm

  I add this expression to my Source text and I keep recieving an “invalid numeric result(divide by zero?) error.

  If I change the “myNum = time” no error, it displays time + percent. Also if I just link to the slider, no error, my number is displayed.

  It’s not that I can’t just put a percent sign behind the counter, I want to know why this isn’t working

  Thanks,

  myNum = effect("Slider Control")("Slider");
myNum + "%"


  Johnny Cuevas, Editor
  Thinkck.com

  “I have not failed 700 times. I have succeeded in proving that those 700 ways will not work. When I have eliminated the ways that will not work, I will find the way that will work.”
  —THOMAS EDISON on inventing the light bulb.

  John Cuevas replied 14 years, 6 months ago 2 Members · 2 Replies
• 2 Replies

• 

  Dan Ebberts

  February 15, 2012 at 8:33 pm

  Sometimes the expression engine doesn’t automatically convert expression control objects to values and you have to explicitly tell it to do so, like this:

  myNum = effect(“Slider Control”)(“Slider”).value;
  myNum + “%”

  This is another way to fix it:

  myNum = effect(“Slider Control”)(“Slider”);
  “” + myNum + “%”

  Apparently forcing the string conversion (with the “”) also causes the value to be retrieved.

  Dan
• 

  John Cuevas

  February 15, 2012 at 8:36 pm

  Thank you Dan, that was driving me nuts. Good thing to remember for the future.

  Johnny Cuevas, Editor
  Thinkck.com

  “I have not failed 700 times. I have succeeded in proving that those 700 ways will not work. When I have eliminated the ways that will not work, I will find the way that will work.”
  —THOMAS EDISON on inventing the light bulb.

Reply to this Discussion! Login or Sign Up