Bug 212291 SWT Chart render engine always uses 96 DPI(Display) resolution
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/computation/withaxes/PlotWithAxes.java
* @throws IllegalArgumentException
	 */
	public abstract ISeriesRenderingHints getSeriesRenderingHints(
			SeriesDefinition sdOrthogonal, Series seOrthogonal )
			throws ChartException, IllegalArgumentException;
	/**
	 * @throws IllegalArgumentException
	 * @throws ChartException
	 */
	abstract void buildAxes( ) throws IllegalArgumentException, ChartException;
	/**
	 * 
	 * @return
	 */
	public final AllAxes getAxes( )
	{
		return aax;
	}
	/**
	 * @return
	 */
	public final RunTimeContext getRunTimeContext( )
	{
		return rtc;
	}
	/**
	 * 
	 * @return
	 */
	public final IDisplayServer getDisplayServer( )