Bug 208373 Auto resize Chart to have a single axis without blank
When Chart is within Cross tab, chart axis image should have a single axis only, but there may be much blank in other area. Chart engine should auto resize the image to have the axis with fit size. Meanwhile, report engine should not set size for chart image.
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/computation/withaxes/PlotWith2DAxes.java
);
			aax.defineOverlay( i, oaxOverlayOrthogonal );
		}
		
		
		ssl = StackedSeriesLookup.create( cwa, rtc );
	}
	/**
	 * This method pulls out the 'min' and 'max' value for all datasets
	 * associated with a single axis using the custom data source processor
	 * implementation
	 * 
	 * @param ax
	 *            The orthogonal axis for which the min/max values are being
	 *            computed
	 * @param iType
	 *            The renderer's axis data type
	 * 
	 * @return
	 */
	private final Object getMinMax( Axis ax, int iType ) throws ChartException,
			IllegalArgumentException
	{
		final Series[] sea = ax.getRuntimeSeries( );
		final int iSeriesCount = sea.length;
		Series se;
		DataSet ds;
		Object oV1, oV2, oMin = null, oMax = null;
		PluginSettings ps = PluginSettings.instance( );