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
private double dSafeSpacing;
		private double dEllipsisWidth;
		private List legendItems = new ArrayList( );
		private Insets insCa;
		private String sMinSliceLabel;
	}
	private static final String ELLIPSIS_STRING = "..."; 
	private Size sz;
	/**
	 * The constructor.
	 */
	public LegendBuilder( )
	{
	}
	/**
	 * Computes the size of the legend. Note the computation relies on the title
	 * size, so the title block must be layouted first before this.
	 * 
	 * @param lg
	 * @param sea
	 * 
	 * @throws GenerationException
	 */
	public final Size compute( IDisplayServer xs, Chart cm,
			SeriesDefinition[] seda, RunTimeContext rtc ) throws ChartException
	{