[Navarro Parker]

Hey, I’m getting an error: expression results must be of dimension 2, not 1

Here’s a test project file to illustrate the original problem (for anyone wondering):

https://www.mediafire.com/download/bk0grfxawg0059w/3Dnull-looparound.aep

[Navarro Parker]

And how about decrementing by -1?

[Navarro Parker]

Sure… why not use the index! 🙂

[Navarro Parker]

I’m having trouble getting this to work.

My layer markers are on the same text layer as the expression. But the starting number isn’t incrementing when it hits a marker.

c = thisLayer;
count = 10;
for (i = 1; i <= c.marker.numKeys; i++){
if (c.marker.key(i).time > time) break;
if (c.marker.key(i).comment == "3") count++;
}
count

[Navarro Parker]

What’s the expression to check if a null is behind the camera?

[Navarro Parker]

Yup, that does it! Thank you!

[Navarro Parker]

I see… so it’s like a range mapper! Cool.

If I needed to reverse the process (I forgot I had the rotation already pickwhipped to a null), would it look like:

tp = *pickwhip rotation*
linear(tp,0,360,0,100)

[Navarro Parker]

Hi Dan!

I ran into a tiny problem with this expression. It doesn’t respect the number of leading zeros with negative numbers.

[Navarro Parker]

It doesn’t look like it’s countacting the first parent’s rotation. When I parent the text layer initially, it gains a rotation of 18° (base on the parent).

Then adding the expression makes it match up with it’s first parent 18° off. It’s not staying horizontal.

I subtracted 18 at the end of the expression to fix it. But that’s more of a band-aid than a fix.

-radiansToDegrees(Math.atan2(v[1],v[0])) - 18

[Navarro Parker]

Brilliant as always! Thank you! …and you might want to check your email 😉