public static final boolean DEFAULT_CROSSHAIR_VISIBLE = false;

    /** The default crosshair stroke. */
    public static final Stroke DEFAULT_CROSSHAIR_STROKE 
        = DEFAULT_GRIDLINE_STROKE;

    /** The default crosshair paint. */
    public static final Paint DEFAULT_CROSSHAIR_PAINT = Color.blue;

    /** The resourceBundle for the localization. */
    protected static ResourceBundle localizationResources = 
        ResourceBundle.getBundle("org.jfree.chart.plot.LocalizationBundle");

    /** The plot orientation. 
     *  vertical = notch down
     *  horizontal = notch right
     */
    private PlotOrientation orientation;

    /** The dataset. */
    private WaferMapDataset dataset;