if (Debug.debugging("animationtester")) { Debug.output("AnimationTester.manageGraphics with " + nodes.size() + " node(s)."); }
    public void manageGraphics() {//      Debug.message("animationtester", "AnimationTester.manageGraphics");        Projection p = getProjection();        Iterator it = nodes.iterator();        while (it.hasNext()) {            GLPoint point = (GLPoint) it.next();            point.moveRandomly(factor);            point.generate(p);        }        OMGraphicHandler receiver = getReceiver();        if (receiver != null) {            receiver.setList(nodes);        }    }