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
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, titleBounding.getHeight( )
							+ 2
							* shadowness );
					break;
			}
		}
		itm.dispose( ); 
		if ( rtc != null )
		{
			List legendItems = legendData.legendItems;
			LegendItemHints[] liha = (LegendItemHints[]) legendItems.toArray( new LegendItemHints[legendItems.size( )] );
			if ( liha.length > 1 )
			{
				
				boolean needInvert = false;
				
				if ( cm instanceof ChartWithAxes )
				{
					needInvert = ( (ChartWithAxes) cm ).isTransposed( );
				}