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
lgTitle,
						0,
						0 );
			}
			catch ( IllegalArgumentException uiex )
			{
				throw new ChartException( ChartEnginePlugin.ID,
						ChartException.RENDERING,
						uiex );
			}
			iTitlePos = lg.getTitlePosition( ).getValue( );
			
			if ( rtc.isRightToLeft( ) )
			{
				if ( iTitlePos == Position.LEFT )
				{
					iTitlePos = Position.RIGHT;
				}
				else if ( iTitlePos == Position.RIGHT )
				{
					iTitlePos = Position.LEFT;
				}
			}
			double shadowness = 3 * legendData.dScale;
			switch ( iTitlePos )
			{
				case Position.ABOVE :
				case Position.BELOW :
					legendData.dAvailableHeight -= titleBounding.getHeight( )
							+ 2