Bug 207036 [Regression] The chart in an old report design can not be rendered [13]
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/render/AxesRenderer.java
}
		else
		{
			if ( ya.length % 2 == 1 )
			{
				rt = ya[ya.length / 2];
			}
			else
			{
				int x = ya.length / 2;
				rt = ( ya[x] + ya[x - 1] ) / 2;
			}
		}
		return above ? ( rt - height - gap ) : ( rt + gap );
	}
	/**
	 * Renders all marker ranges associated with all axes (base and orthogonal)
	 * in the plot Marker ranges are drawn immediately (not rendered as
	 * deferred) at an appropriate Z-order immediately after the plot background
	 * is drawn.
	 * 
	 * @param oaxa
	 *            An array containing all axes
	 * @param boPlotClientArea
	 *            The bounds of the actual client area
	 * 
	 * @throws RenderingException
	 */
	private final void renderMarkerRanges( OneAxis[] oaxa,
			Bounds boPlotClientArea ) throws ChartException