Bug 171533 Pie chart legends are truncated
This only happens with a title for the legend. There is a small bug in the layout algorithm that causes the clipping in such case.
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/computation/LegendBuilder.java
if ( bMinSliceDefined
				&& bPaletteByCategory
				&& cm instanceof ChartWithoutAxes )
		{
			calculateExtraLegend( cm, rtc, legendData );
		}
		double[] size = null;
		
		if ( orientation.getValue( ) == Orientation.VERTICAL )
		{
			if ( bPaletteByCategory )
			{
				size = computeVerticalByCategory( xs,
						cm,
						rtc,
						itm,
						la,
						legendData );
			}
			else if ( direction.getValue( ) == Direction.TOP_BOTTOM )
			{
				size = computeVerticalByTopBottomValue( xs,
						cm,
						seda,
						rtc,
						itm,
						la,
						legendData );
			}
			else if ( direction.getValue( ) == Direction.LEFT_RIGHT )