• Adobe After Effects Expressions

  Reposition text anchor point depending on characters

  Posted by Yan Trudel on July 7, 2017 at 1:57 pm

  I dont know if I can call it a problem because it works, but being someone who still only dabbles a bit in AE expressions I was hoping maybe to optimize or “fool proof” some code.

  I have a text layer that has to be aligned at the bottom, even when there are line breaks. I found this great post on the Adobe forums that solved that problem ( https://forums.adobe.com/thread/1065178 ). (Thanks Dan!).

  But since I needed my text to not move at all, I added an expression to shift the Anchor point according to the presence of certain characters on text line 1 if there is only 1 line, and on line 2 if there are 2 lines of text. Since the text is all caps, only these characters seem problematic : Q $ Ç ; ,

  Everything seems to work fine, but was wondering if there was a chance any of this could backfire in certain situations?

  Position :
myComp = comp("Comp - Titre")  
myLayer = thisLayer;
myRect = myLayer.sourceRectAtTime(0,false);
myPos = transform.position;
s = transform.scale;
myY = myPos[1] + ((myRect.top + myRect.height)*s[1]/100);
deltaY = myComp.height - myY;
(myPos + [0,deltaY]);

  Anchor Point :
  Px=transform.anchorPoint[0];
  Py=transform.anchorPoint[1];

  txt = comp("Control_HUB").layer("TITRE").text.sourceText;
  Lignes = txt.split(/\n|\r/).length;
  LDeux = txt.split("\r");

  C = 1;
  Q = 1;
  Pv = 1;
  V = 1;
  D = 1;

  if (Lignes > 1)
  {
  LDeux = txt.split("\r")[1];
  C = LDeux.split("ç").length;
  Q = LDeux.split("q").length;
  V = LDeux.split(",").length;
  Pv = LDeux.split(";").length;
  D = LDeux.split("$").length;

   if(C>1 || Q>1 || V>1 || Pv>1)
  {
  Py=Py-21;
  }

   else if(D>1)
  {
  Py=Py-15;
  }

    else
      Py=Py;
  }

  else if (Lignes == 1)
  {
  LDeux = txt.split("\r")[0];
  C = LDeux.split("ç").length;
  Q = LDeux.split("q").length;
  V = LDeux.split(",").length;
  Pv = LDeux.split(";").length;
  D = LDeux.split("$").length;

   if(C>1 || Q>1 || V>1 || Pv>1)
  {
  Py=Py-21;
  }

   else if(D>1)
  {
  Py=Py-15;
  }

    else
      Py=Py;
  }

  [Px,Py];


  Yan Trudel replied 9 years ago 1 Member · 0 Replies
• 0 Replies

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