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
eNotify( new ENotificationImpl( this,
					Notification.SET,
					TypePackage.PIE_SERIES__CLOCKWISE,
					oldClockwise,
					clockwise,
					!oldClockwiseESet ) );
	}
	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void unsetClockwise( )
	{
		boolean oldClockwise = clockwise;
		boolean oldClockwiseESet = clockwiseESet;
		clockwise = CLOCKWISE_EDEFAULT;
		clockwiseESet = false;
		if ( eNotificationRequired( ) )
			eNotify( new ENotificationImpl( this,
					Notification.UNSET,
					TypePackage.PIE_SERIES__CLOCKWISE,
					oldClockwise,
					CLOCKWISE_EDEFAULT,
					oldClockwiseESet ) );
	}
	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated