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
/**
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * @generated
	 */
	public void setLeaderLineLength( double newLeaderLineLength )
	{
		double oldLeaderLineLength = leaderLineLength;
		leaderLineLength = newLeaderLineLength;
		boolean oldLeaderLineLengthESet = leaderLineLengthESet;
		leaderLineLengthESet = true;
		if ( eNotificationRequired( ) )
			eNotify( new ENotificationImpl( this,
					Notification.SET,
					TypePackage.PIE_SERIES__LEADER_LINE_LENGTH,
					oldLeaderLineLength,
					leaderLineLength,
					!oldLeaderLineLengthESet ) );
	}
	/**
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * @generated
	 */
	public void unsetLeaderLineLength( )
	{
		double oldLeaderLineLength = leaderLineLength;
		boolean oldLeaderLineLengthESet = leaderLineLengthESet;
		leaderLineLength = LEADER_LINE_LENGTH_EDEFAULT;
		leaderLineLengthESet = false;
		if ( eNotificationRequired( ) )
			eNotify( new ENotificationImpl( this,