this.start = queue.getStartPoint();
this.startPoint = queue.getStartPoint();
	public void insertBefore(PolylineQueue queue) {		this.start = queue.getStartPoint();		Iterator i = queue.getElementIterator();		int x = 0;		while (i.hasNext()) {			DXFEntity e = (DXFEntity) i.next();			this.elements.add(x, e);			x++;		}	}