[Dan Ebberts]

If you apply the expression to a slider, for example, I guess you try smoothing that result in another slider, with something like this:

s = effect("Data Slider")("Slider");
s.smooth(.2,5)

[Dan Ebberts]

I think in order to craft the rotation expression you’d have to know how to detect the triggering event (which I guess might be the end of the position animation), but to do that, we’d have to know exactly how you’re accomplishing that animation.

[Dan Ebberts]

I’d start with something like this maybe:

data = footage("test json.json").sourceData;
dataRate = 30;
idx = clamp(Math.round(time*dataRate),0,data.length-1);
x = data[idx].x;
y = data[idx].y;
[x,y]

[Dan Ebberts]

Can you post a simple example project file where scaling causes this issue?

[Dan Ebberts]

How are you animating the opacity and position?

[Dan Ebberts]

I don’t think there’s any way to do that. An alternative might be to create a pseudo effect, which would allow you to define the slider range and apply the slider via a .ffx file, but you’d have to define the range when you create the pseudo effect, not when you run the script.

[Dan Ebberts]

I set it up, and the animation of Text layer B is pretty much what I’d expect, based on what’s happening to the width of Text layer A as the animation unfolds. Maybe you could post a screen shot of your settings and maybe a shot of the graph editor for Text layer B’s position?

[Dan Ebberts]

Try this:

var comp = app.project.activeItem;
var props = comp.selectedProperties;
for (var i = 0; i < props.length; i++) {
	if (props[i].matchName == "ADBE Vector Group"){
		props[i].property("ADBE Vectors Group").addProperty("ADBE Vector Filter - Trim");
	}
}

[Dan Ebberts]

You could certainly do it, but you’d probably have to collect all the linear() results into some sort of accumulator variable (I’m guessing–I’m still not picturing how you would actually use it).

[Dan Ebberts]

It depends on what you mean exactly. Maybe something like this:

freq = 3;
amplitude = 50;
decay = 6;
easeTime = 1;
if (time >= inPoint){
  val = amplitude*Math.sin(freq*time*2*Math.PI)/Math.exp(decay*(time-inPoint));
  easeIn(time,0,easeTime,0,val)
}
else{value}