Bug 211773 Legend entries overlap
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/computation/LegendBuilder.java
break;
				case Position.ABOVE :
				case Position.BELOW :
					if ( legendData.dAvailableHeight > dMaxLegendHeight )
					{
						legendData.dAvailableHeight = dMaxLegendHeight;
					}
					break;
			}
			
			boolean bMinSliceDefined = false;
			if ( cm instanceof ChartWithoutAxes )
			{
				bMinSliceDefined = ( (ChartWithoutAxes) cm ).isSetMinSlice( );
				legendData.sMinSliceLabel = ( (ChartWithoutAxes) cm ).getMinSliceLabel( );
				if ( legendData.sMinSliceLabel == null ||
						legendData.sMinSliceLabel.length( ) == 0 )
				{
					legendData.sMinSliceLabel = IConstants.UNDEFINED_STRING;
				}
				else
				{
					legendData.sMinSliceLabel = rtc.externalizedMessage( legendData.sMinSliceLabel );
				}
			}
			
			if ( bMinSliceDefined &&
					bPaletteByCategory &&
					cm instanceof ChartWithoutAxes )
			{