Bug 188029 Top face is missing in Area chart of 2D+ with negative values
Top face is missing in Area chart of 2D+ with negative values. Please see attached screenshot.
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/computation/withaxes/StackedSeriesLookup.java
}
						else
						
						
						{
							sg = new StackGroup( -1 ); 
							
							
							alSGCopies.add( sg );
							ssl.htSeriesToStackGroup.put( se, sg );
							sg.addSeries( se ); 
						}
					}
				}
				else
				
				{
					for ( int k = 0; k < iSeriesCount; k++ ) 
					
					
					{
						se = (Series) alSeries.get( k );
						dsi = new DataSetIterator( se.getDataSet( ) );
						iDataSetCount = dsi.size( );
						if ( ssl.iCachedUnitCount == 0 )
						{
							ssl.iCachedUnitCount = iDataSetCount;
						}
						else if ( ssl.iCachedUnitCount != iDataSetCount )
						{