box.setXWithoutUpdatingParentsSize(x);
// --- update position of subtree - begin ---
for (final Object o : box.getOp().getSucceedingElements()) {
final GraphWrapperIDTuple gwIDt = (GraphWrapperIDTuple) o;
final GraphBox box2 = operatorgraph.getBoxes().get(
gwIDt.getOperator());
if (levels.get(box2.getOp()) > level) {
updateXWithoutUpdatingParentsSize(operatorgraph, box2, levels,
level, box2.getX() + offset, visited);
}
}