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
*/
	public void setLeaderLineAttributes( LineAttributes newLeaderLineAttributes )
	{
		if ( newLeaderLineAttributes != leaderLineAttributes )
		{
			NotificationChain msgs = null;
			if ( leaderLineAttributes != null )
				msgs = ( (InternalEObject) leaderLineAttributes ).eInverseRemove( this,
						EOPPOSITE_FEATURE_BASE
								- TypePackage.PIE_SERIES__LEADER_LINE_ATTRIBUTES,
						null,
						msgs );
			if ( newLeaderLineAttributes != null )
				msgs = ( (InternalEObject) newLeaderLineAttributes ).eInverseAdd( this,
						EOPPOSITE_FEATURE_BASE
								- TypePackage.PIE_SERIES__LEADER_LINE_ATTRIBUTES,
						null,
						msgs );
			msgs = basicSetLeaderLineAttributes( newLeaderLineAttributes, msgs );
			if ( msgs != null )
				msgs.dispatch( );
		}
		else if ( eNotificationRequired( ) )
			eNotify( new ENotificationImpl( this,
					Notification.SET,
					TypePackage.PIE_SERIES__LEADER_LINE_ATTRIBUTES,
					newLeaderLineAttributes,
					newLeaderLineAttributes ) );
	}
	/**