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
/**
	 * The constructor.
	 */
	public LegendBuilder( )
	{
	}
	/**
	 * Computes the size of the legend. Note the computation relies on the title
	 * size, so the title block must be layouted first before this.
	 * 
	 * @param lg
	 * @param sea
	 * 
	 * @throws GenerationException
	 */
	public final Size compute( IDisplayServer xs, Chart cm,
			SeriesDefinition[] seda, RunTimeContext rtc ) throws ChartException
	{
		
		
		
		
		final Legend lg = cm.getLegend( );
		LegendData legendData = new LegendData( );
		if ( !lg.isSetOrientation( ) )
		{
			throw new ChartException( ChartEnginePlugin.ID,
					ChartException.GENERATION,
					"exception.legend.orientation.horzvert", 
					Messages.getResourceBundle( xs.getULocale( ) ) );