public EllipseComponent[] getEllipses() {
		int n = getNumberOfInstances(EllipseComponent.class);
		EllipseComponent[] l = new EllipseComponent[n];
		n = 0;
		synchronized (layerBasket) {
			for (Layered c : layerBasket) {
				if (c instanceof EllipseComponent)
					l[n++] = (EllipseComponent) c;
			}
		}
		return l;
	}