Join the discord to talk film and animation, any time, anywhere!
https://discord.gg/cpmVBQ2

Suport me on Patreon!
http://patreon.com/maxwellridgeway

Download the Expression + Project file here
http://www.mediafire.com/file/l8tfti56vpl3twz/Scale_Text.zip

Expressions (There's three, First one is the main one.)

margin = 50;
text_width = thisComp.layer("Text").sourceRectAtTime().width;
text_height = thisComp.layer("Text").sourceRectAtTime().height;
box_width = text_width + margin*2;
box_height = text_height + margin*2;
[box_width, box_height]

text_height = thisComp.layer("Text").sourceRectAtTime().height;
[0, text_height/2]

t = thisComp.layer("Text");
tRect = t.sourceRectAtTime(time,false);
tUL = t.toComp([tRect.left,tRect.top]);
tLR = t.toComp([tRect.left+tRect.width,tRect.top+tRect.height]);
tCenter = (tUL + tLR)/2
myRect = sourceRectAtTime(time,false);
myUL = toComp([myRect.left,myRect.top]);
myLR = toComp([myRect.left+myRect.width,myRect.top+myRect.height]);
myCenter = (myUL + myLR)/2
delta = myCenter …