Iterator it = iterator(); while (it.hasNext()) { if (((OMGeometry) it.next()).isVisible()) { return true;
synchronized (graphics) { Iterator it = iterator(); while (it.hasNext()) { if (((OMGeometry) it.next()).isVisible()) { return true; }
    public boolean isVisible() {	Iterator it = iterator();	while (it.hasNext()) {	    if (((OMGeometry) it.next()).isVisible()) {		return true;	    }	}	return false;    }