Bug 211773 Legend entries overlap
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/computation/LegendBuilder.java
size = computeHorizalByTopBottomValue( xs,
							cm,
							seda,
							rtc,
							itm,
							la,
							legendData );
				}
				else if ( direction.getValue( ) == Direction.LEFT_RIGHT )
				{
					size = computeHorizalByLeftRightValue( xs,
							cm,
							seda,
							rtc,
							itm,
							la,
							legendData );
				}
				else
				{
					throw new ChartException( ChartEnginePlugin.ID,
							ChartException.GENERATION,
							"exception.illegal.rendering.direction", 
							new Object[]{
								direction
							},
							Messages.getResourceBundle( xs.getULocale( ) ) );
				}
			}
			else