[Marticus Kilverticus]

So long as youre only going between 2 keyframes, make a new slider somwhere with your width on it, then apply this to the strokes width:

width = (pickwhip to a new number slider);
linear(0,10,0,width)

That just replaces 10 with your new sliders value.

[Marticus Kilverticus]

Many thanks Alex!
That was nearly right, just needed another reference to the layer at the start! Phew! 😀

opa = thisComp.layer("Col A Row 1").transform.opacity //reference layers opacity

opa.valueAtTime(linear(slider,0,1,opa.key(1).time,opa.key(opa.numKeys).time))

[Marticus Kilverticus]

It’s good, thank you!

But I’m struggling to grab the keyframe information from a different layer when using the normal reference methods. How do I target my “opa” correctly in this instance below?

row = effect("Row")("Slider");
drop = thisComp.layer("CTRL").effect("Drop")("Slider");
thedrop = linear(drop,row-1,row,0,1); //converts row vs drop to 0 to 1
opa = thisComp.layer("Col A Row 1").transform.opacity //reference layers opacity

valueAtTime(linear(thedrop,0,1,key(1).time,key(numKeys).time))

[Marticus Kilverticus]

Yep, adding .value to the referenced angle did it. Would love to know why!

Either way, lesson learnt, thanks Dan

[Marticus Kilverticus]

I get that, but the angles have been manually set to exactly the same value and I still get the same result…

[Marticus Kilverticus]

percent = thisComp.layer(“map layer”).effect(“Stroke”)(“End”);
t = linear(percent,0,100,key(1).time,key(numKeys).time)
valueAtTime(t)

Thanks, this is a great help in handling acceleration across animated paths with multiple points!
Only issue; it totally breaks auto orient to path ☹ Any rotation solution to this?

[Marticus Kilverticus]

Firstly make sure the letters in your original text layer aren’t overlapping.
Then go into the Particle Look settings for that group and enable Multi Object.
Then mess around with the X Displace setting.

[Marticus Kilverticus]

I know this is a late reply, but I just had this happen in AE2018 (but not in 2017).
It happened in a completely fresh project with no animations.

The solution was to drop down into the text layer settings and change the Fill & Stroke to anything other than the default setting.