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/PlotWith2DAxes.java
double dY = 0, dY1 = dY, dY2 = dY;
				final boolean bTicksAbove = ( iTickStyle & TICK_ABOVE ) == TICK_ABOVE;
				final boolean bTicksBelow = ( iTickStyle & TICK_BELOW ) == TICK_BELOW;
				final double dAppliedXAxisPlotSpacing = dXAxisPlotSpacing;
				if ( laAxisTitle.isVisible( ) )
				{
					final String sPreviousValue = laAxisTitle.getCaption( )
							.getValue( );
					laAxisTitle.getCaption( )
							.setValue( rtc.externalizedMessage( sPreviousValue ) );
					dAxisTitleThickness = computeBox( ids,
							iTitleLocation,
							laAxisTitle,
							0,
							0 ).getHeight( );
					laAxisTitle.getCaption( ).setValue( sPreviousValue );
				}
				
				
				
				
				
				
				if ( iv.getType( ) == IntersectionValue.MAX ) 
				
				
				{
					dY = dBlockStart;