Bug 211773 Legend entries overlap
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/computation/LegendBuilder.java
if ( legendData.bMinSliceApplied
					&& Arrays.binarySearch( legendData.filteredMinSliceEntry,
							pos ) >= 0 )
			{
				continue;
			}
			String lgtext = String.valueOf( obj );
			if ( fs != null )
			{
				try
				{
					lgtext = ValueFormatter.format( obj,
							fs,
							rtc.getULocale( ),
							null );
				}
				catch ( ChartException e )
				{
					
				}
			}
			la.getCaption( ).setValue( lgtext );
			itm.reuse( la, legendData.maxWrappingSize );
			BoundingBox bb = null;
			try
			{
				bb = Methods.computeBox( xs, IConstants.ABOVE, la, 0, 0 );
			}
			catch ( IllegalArgumentException uiex )
			{