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/util/LiteralHelper.java
return new NameSet( prefix, suffix, new String[]{
				Position.ABOVE_LITERAL.getName( ),
				Position.BELOW_LITERAL.getName( ),
		} );
	}
	private static NameSet getInoutPositionSet( )
	{
		String prefix = "Position."; 
		String suffix = ".displayName"; 
		return new NameSet( prefix, suffix, new String[]{
				Position.INSIDE_LITERAL.getName( ),
				Position.OUTSIDE_LITERAL.getName( ),
		} );
	}
	
	private static NameSet getNotOutPositionSet( )
	{
		String prefix = "Position."; 
		String suffix = ".displayName"; 
		return new NameSet( prefix, suffix, new String[]{
				Position.ABOVE_LITERAL.getName( ),
				Position.BELOW_LITERAL.getName( ),
				Position.INSIDE_LITERAL.getName( ),
				Position.LEFT_LITERAL.getName( ),
				Position.RIGHT_LITERAL.getName( ),
		} );
	}
	private static NameSet getFullPositionSet( )
	{
		String prefix = "Position.";