Bug 211773 Legend entries overlap
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/computation/LegendBuilder.java
{
				throw new ChartException( ChartEnginePlugin.ID,
						ChartException.GENERATION,
						"exception.illegal.rendering.orientation", 
						new Object[]{
							orientation
						},
						Messages.getResourceBundle( xs.getULocale( ) ) );
			}
			if ( size == null )
			{
				return SizeImpl.create( 0, 0 );
			}
			double dWidth = size[0], dHeight = size[1];
			if ( iTitlePos != -1 )
			{
				double shadowness = 3 * legendData.dScale;
				switch ( iTitlePos )
				{
					case Position.ABOVE :
					case Position.BELOW :
						dHeight += titleBounding.getHeight( ) + 2 * shadowness;
						dWidth = Math.max( dWidth, titleBounding.getWidth( ) +
								2 *
								shadowness );
						break;
					case Position.LEFT :
					case Position.RIGHT :
						dWidth += titleBounding.getWidth( ) + 2 * shadowness;
						dHeight = Math.max( dHeight,