Cancelling parent scaling in child

[Guest]

Any tips on getting a child to cancel out the scaling of its parent?  The parent in this case scales X and Y differently, And I can't figure out how to anti-scale the child so it doesn't stretch.

On the child, I'm trying to do an inverse proportion. (But this obviously applies it to both X and Y the same). Not sure sure how to call specific X or Y scale.

s = thisComp.layer("Parent").transform.scale;

[(1/s)]

Is giving me a scalar error (?)

[Dan Ebberts]

Try this:

s = parent.transform.scale/100;
[value[0]/s[0],value[1]/s[1]]

Dan

[Navarro Parker]

As always... brilliant! Thank you very much!

I keep thinking variables can only store one number, not a set of numbers that can be selectively plucked out of a series.  Would the programmy term be plucking an element out of a matrix (or is it array?)

If it was a 3D layer, it would be [value[0]/s[0],value[1]/s[1],value[2]/s[2]], right?

[Dan Ebberts]

Yes, arrays, and yes on the 3D version.

Dan

[Navarro Parker]

Hey Dan!

I trotted this expression out again, but now I'm getting an error in CC 2014. Any ideas? My parent is scaled non-proportionally 100%,75%

Here's what the child has in the scale parameter:

s = parent.transform.scale/100;

[value[0]/s[0],value[1]/s[1]]

[Dan Ebberts]

I just tried it in CC 2014 with the parent at 100,75 and it works fine for me. I'm not sure what the problem could be.

Dan

[Navarro Parker]

I'm using shape layers for both parent and child. Would that be an issue?

(And thanks for the super quick reply!)

[Dan Ebberts]

Using shape layers doesn't appear to make a difference.

>Also, where is Line 0??

Maybe you've managed to confuse the expression engine.

Dan

[Navarro Parker]

Aha! I figured it out. I was animating the parent from 0% to 75%. The 0 was causing a div by zero error. I changed it to .001% and the expression works now!

[Navarro Parker]

Also, where is Line 0??