Bug 312761 It makes no difference changing the series labels position in Radar chart.[13]
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/model/type/impl/PieSeriesImpl.java
@Override
	public Object eGet( int featureID, boolean resolve, boolean coreType )
	{
		switch ( featureID )
		{
			case TypePackage.PIE_SERIES__EXPLOSION :
				return getExplosion( );
			case TypePackage.PIE_SERIES__EXPLOSION_EXPRESSION :
				return getExplosionExpression( );
			case TypePackage.PIE_SERIES__TITLE :
				return getTitle( );
			case TypePackage.PIE_SERIES__TITLE_POSITION :
				return getTitlePosition( );
			case TypePackage.PIE_SERIES__LEADER_LINE_ATTRIBUTES :
				return getLeaderLineAttributes( );
			case TypePackage.PIE_SERIES__LEADER_LINE_STYLE :
				return getLeaderLineStyle( );
			case TypePackage.PIE_SERIES__LEADER_LINE_LENGTH :
				return getLeaderLineLength( );
			case TypePackage.PIE_SERIES__SLICE_OUTLINE :
				return getSliceOutline( );
			case TypePackage.PIE_SERIES__RATIO :
				return getRatio( );
			case TypePackage.PIE_SERIES__ROTATION :
				return getRotation( );
			case TypePackage.PIE_SERIES__CLOCKWISE :
				return isClockwise( );
		}
		return super.eGet( featureID, resolve, coreType );
	}