afreechart/src/main/java/org/afree/chart/axis/PeriodAxis.java
/**
     * Draws the tick marks for a vertical axis.
     *
     * @param canvas  the graphics device.
     * @param state  the axis state.
     * @param dataArea  the data area.
     * @param edge  the edge.
     */
Draws the tick marks for a vertical axis.
@param canvas  the graphics device.
@param state  the axis state.
@param dataArea  the data area.
@param edge  the edge.
Draws the tick marks for a vertical axis . @param canvas the graphics device . @param state the axis state . @param dataArea the data area . @param edge the edge .
protected void drawTickMarksVertical(Canvas canvas, AxisState state,
                                         RectShape dataArea,
                                         RectangleEdge edge) {
    }
protected void drawTickMarksVertical ( Canvas canvas , AxisState state , RectShape dataArea , RectangleEdge edge ) { }
Draws the tick marks for a vertical axis.
Draws the tick marks for a vertical axis .
// FIXME:  implement this...