Bug 169566 Chart Marker Line is above the Series Line
If I'm adding a marker line in a Chart this line is above the Series lines. The series line should above the marker line
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/render/AxesRenderer.java
}
		return null;
	}
	/**
	 * Returns the panning offset for 3D engine.
	 */
	protected Location getPanningOffset( )
	{
		if ( isDimension3D( ) )
		{
			
			return ( (PlotWith3DAxes) oComputations ).getPanningOffset( );
		}
		return null;
	}
	/**
	 * Gets current model Axis
	 * 
	 * @return Returns the axis associated with current renderer.
	 */
	public final Axis getAxis( )
	{
		return ax;
	}
	/**
	 * Gets current internal primary orthogonal OneAxis
	 * 
	 * @return internal OneAxis
	 */
	protected final OneAxis getInternalOrthogonalAxis( )