Bug 179913 Meter Chart color by categories with null values does not work correctly [0001]
Description: Meter Chart color by categories with null values does not work correctly. Build number: 2.2.0.v20070329-1055 Steps to reproduce: 1. New a Meter Chart with values as follows: Moto, null; Nokia, 58; null, 66; Benq, null. 2. In "Format Chart" tab, select "Series" node, choose "Color by Categories". 3. Preview. Expected result: 1. The needle which shows the second value should take the second color. 2. There should be four in the legend area and the third name is null. Actual result: 1. The needle which shows the second value should take the first color. 2. There should be three in the legend area. Error log: N/A
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/computation/LegendBuilder.java
}
					}
				}
				
				
				if ( !hasOptionalGrouping & isStack )
				{
					
					needInvert = !needInvert;
				}
				if ( needInvert )
				{
					liha = invertLegendItems( liha );
				}
			}
			
			LegendLayoutHints lilh = new LegendLayoutHints( SizeImpl.create( dWidth,
					dHeight ),
					titleSize,
					legendData.bMinSliceApplied,
					legendData.sMinSliceLabel,
					liha );
			rtc.setLegendLayoutHints( lilh );
		}
		sz = SizeImpl.create( dWidth, dHeight );
		return sz;
	}
	
	private void calculateExtraLegend( Chart cm, RunTimeContext rtc,
			LegendData legendData ) throws ChartException