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
new Point( dWidth - dDeltaWidth, dExtraHeight ),
							dFWidth,
							dFHeight,
							la.getCaption( ).getValue( ),
							dsiBase.size( ) ) );
				}
			}
			else
			{
				dHeight = Math.max( dFHeight, dHeight );
				dWidth += dDeltaWidth;
				columnList.add( new LegendItemHints( LEGEND_MINSLICE_ENTRY,
						new Point( dWidth - dDeltaWidth, dExtraHeight ),
						dFWidth,
						dFHeight,
						la.getCaption( ).getValue( ),
						dsiBase.size( ) ) );
			}
		}
		
		dRowHeight = dHeight + legendData.dVerticalReservedSpace;
		if ( dExtraHeight + dRowHeight > legendData.dAvailableHeight
				+ legendData.dSafeSpacing )
		{
			dHeight = -legendData.dVerticalReservedSpace;
		}
		else
		{
			legendData.legendItems.addAll( columnList );
		}