x y expressions

[Ryan Hill]

Okay. I’m afraid I don’t have AE infront of me right now, so I’m missing a lot of details, but…

A position is represented as a list of two values.
[x,y]

So to access just the X value, you go postion[0] and for the y value, you use position[1].

So, what you’ll want will look something like

[thisComp.layer(“audiolayer”),value[1]]

But like I said, I might have the syntax wrong, because I don’t have AE in front of me. It could be:
(thisComp.layer(“audiolayer”),value[1])

CHeck this while you’re at it:
https://www.creativecow.net/cgi-bin/page_wrapper.cgi?forumid=&page=/articles/bassett_doug/connections/index.html

[Mike Clasby]

Pickwhip the layer’s position to the channel slider in the Audio Amplitude Layer, by Alt clicking the position stop watch (layer to be moved by the sound)
then pickwhip that to the slider of the channel you want in the Audio Amplitude Layer. You get a position expression like this:

temp = thisComp.layer(“Audio Amplitude”).effect(“Left Channel”)(“Slider”);
[temp, temp]

Change the bottom line to:

value + [0,temp,0]

This is from an earlier post:

Name: Dan Ebberts
Date: Aug 11, 2004 at 9:07 am
Subject: Re: I want my expression to effect only one axis of a layer’s position

Start here if you suffer from expression-transgression:
https://www.motionscript.com/
https://www.jjgifford.com/expressions/index.html

[Criis Daw]

Thabk you both for your help.. i will try it now

[Criis Daw]

HEY HEY hEY it works !!!!!!!!!!!!!!!!
let the revolutuion begin

how do you change it to move on the x axis??

thanks

[Mike Clasby]

Change the last line to this:

value + [temp, 0, 0]

Actually I just realized the last line is set up for 3D [x, y, z],
so to wiggle on the z (if 3D button is on) would be:

value + [0, 0, temp]