Bug 312761 It makes no difference changing the series labels position in Radar chart.[13]
chart/org.eclipse.birt.chart.ui/src/org/eclipse/birt/chart/ui/util/ChartUIUtil.java
{
			Series series = sdList.get( i ).getDesignTimeSeries( );
			EList<Query> ddList = series.getDataDefinition( );
			if ( ddList.size( ) == 0 )
			{
				return false;
			}
			
			int[] validIndex = getSeriesUIProvider( series ).validationIndex( series );
			for ( int j = 0; j < validIndex.length; j++ )
			{
				int vi = validIndex[j];
				if ( vi >= 0 && vi < ddList.size( ) )
				{
					String query = ddList.get( vi ).getDefinition( );
					if ( query == null || query.length( ) == 0 )
					{
						return false;
					}
				}
			}
		}
		return true;
	}
	/**
	 * Synchronize runtime series with design series.
	 * 
	 * @param chart
	 */
	public static void syncRuntimeSeries( Chart chart )