Ai Create Inset Rectangles and Ellipses

InsetShapesCompoundPath.jsx

// Create inset rectangles and ellipses and place into compound path

var doc = app.activeDocument;
var al = doc.activeLayer;

// type of path
// var type = "rectangle"
var pathType = "ellipse";

// amount of inset paths (max: 4)
var paths = 3;

// set outside path size (points)
var width = 360;
var height = 360;

// set inset amount (points)
var inset = 18;

// create color
var newColor = new RGBColor();
newColor.red = 0;
newColor.green = 0;
newColor.blue = 0;

// make compound path
var cp = al.compoundPathItems.add();

// make paths and insert in compound path
var path, pathInset, pathW, pathH;
for (var i = 0; i < paths + 1; i++) {
  // calculate path size and position
  pathInset = inset * i;
  pathW = width - i * inset * 2;
  pathH = width - i * inset * 2;
  // create the path
  var path =
    pathType == "rectangle"
      ? al.pathItems.rectangle(-pathInset, pathInset, pathW, pathH)
      : al.pathItems.ellipse(-pathInset, pathInset, pathW, pathH);
  // name path and set specs
  path.name = "Path " + (i + 1);
  path.move(cp, ElementPlacement.PLACEATBEGINNING);
  path.evenodd = true;
  path.fillColor = newColor;
  path.stroked = false;
}