Logarithmic scale problem

public void mouseClicked (MouseEvent e)

  {

    if (SwingUtilities.isRightMouseButton (e))

      return;

    if(pointerAdded)

        return;



    //These return the x,y position on the screen or screen location
    int x = e.getX ();

    int y = e.getY ();


    // Translates a screen location to a Java2D point. 
    Point2D p = translateScreenToJava2D (new Point (x, y));


    //create Plot object
    XYPlot plot = getChart ().getXYPlot ();

    
    //get the chart renderer

    ChartRenderingInfo info = getChartRenderingInfo(); 


    //The area where the clicked occured
    Rectangle2D dataArea = info.getPlotInfo().getDataArea(); 




    //Get the plot coordinates of where the event ocurrs
    double xx = plot.getDomainAxis ().java2DToValue (p.getX (), dataArea, plot.getDomainAxisEdge ());


    double yy = plot.getRangeAxis ().java2DToValue (p.getY (), dataArea, plot.getRangeAxisEdge ());


   
 

    //Add the custom annotation

     CircleDrawer cd = new CircleDrawer(

            Color.RED, Color.BLACK , new BasicStroke(1.0f), null);

    
 

    XYAnnotation bestBid = new XYDrawableAnnotation(

    		xx, yy, 11, 11, cd

        );

    


    this.renderer.addAnnotation(bestBid);

    pointerAdded = true;

    repaint ();

  }