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
}
				dDeltaHeight = legendData.insCa.getTop( )
						+ dFHeight
						+ legendData.insCa.getBottom( );
				if ( cm.getLegend( ).isShowValue( ) )
				{
					DataSetIterator dsiBase = null;
					try
					{
						dsiBase = new DataSetIterator( se.getDataSet( ) );
					}
					catch ( Exception ex )
					{
						throw new ChartException( ChartEnginePlugin.ID,
								ChartException.GENERATION,
								ex );
					}
					
					if ( dsiBase.hasNext( ) )
					{
						obj = dsiBase.next( );
						
						while ( !isValidValue( obj ) && dsiBase.hasNext( ) )
						{
							obj = dsiBase.next( );
						}
						String valueText = String.valueOf( obj );
						if ( fs != null )
						{
							try