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
super.eUnset( featureID );
	}
	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public boolean eIsSet( int featureID )
	{
		switch ( featureID )
		{
			case TypePackage.PIE_SERIES__EXPLOSION :
				return isSetExplosion( );
			case TypePackage.PIE_SERIES__EXPLOSION_EXPRESSION :
				return EXPLOSION_EXPRESSION_EDEFAULT == null ? explosionExpression != null
						: !EXPLOSION_EXPRESSION_EDEFAULT.equals( explosionExpression );
			case TypePackage.PIE_SERIES__TITLE :
				return title != null;
			case TypePackage.PIE_SERIES__TITLE_POSITION :
				return isSetTitlePosition( );
			case TypePackage.PIE_SERIES__LEADER_LINE_ATTRIBUTES :
				return leaderLineAttributes != null;
			case TypePackage.PIE_SERIES__LEADER_LINE_STYLE :
				return isSetLeaderLineStyle( );
			case TypePackage.PIE_SERIES__LEADER_LINE_LENGTH :
				return isSetLeaderLineLength( );
			case TypePackage.PIE_SERIES__SLICE_OUTLINE :
				return sliceOutline != null;
			case TypePackage.PIE_SERIES__RATIO :