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.reportitem/src/org/eclipse/birt/chart/reportitem/ChartReportItemUtil.java
return false;
		}
		String yGroupExpr = null;
		if ( orthSeriesDefinition.getQuery( ) != null )
		{
			yGroupExpr = orthSeriesDefinition.getQuery( ).getDefinition( );
		}
		
		return yGroupExpr != null && !"".equals( yGroupExpr ); 
	}
	
	/**
	 * Check if base series grouping is defined.
	 * 
	 * @param baseSD
	 * @return
	 */
	public static boolean baseGroupingDefined(SeriesDefinition baseSD) {
		if ( baseSD.getGrouping( ) != null && baseSD.getGrouping( ).isEnabled( ) )
		{
			return true;
		}
		
		return false;
	}
	
	/**
	 * Check if current chart has defined grouping.
	 * 
	 * @param cm