In a throwback to Points Along A Line from several years back, here's a quick expression for ya-- "Point on a Circle." Straightforward, yeah? Yeah.
var offsetAmount = [0, 0]; var circleRadius = 100; var targetAngle = 0; var x = offsetAmount + circleRadius * Math.cos(targetAngle); var y = offsetAmount + circleRadius * Math.sin(targetAngle); [x, y]
The first three lines are just setting up the circle & any offset; how big is it, and where on the circle do we want the point to be? In the preset, these will be linked to controllers so you can pick a layer to orbit around, and easily control the angle & radius.
This is super simple-- check it out!