var i = index;
var r = thisComp.layer("Ctrl").effect("r")("スライダー");//円周の半径
var sp = thisComp.layer("Ctrl").effect("degrees")("スライダー");//角度の設定
var x = Math.sin(degreesToRadians(sp*i))*r;
var y = 0;//高さは任意
var z = Math.cos(degreesToRadians(sp*i))*r;
[x,y,z]+value;