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
oaData = getMinMax( axPrimaryBase, iAxisType );
		}
		else if ( ( iAxisType & DATE_TIME ) == DATE_TIME )
		{
			oaData = getMinMax( axPrimaryBase, iAxisType );
		}
		DataSetIterator dsi = ( oaData instanceof DataSetIterator ) ? (DataSetIterator) oaData
				: new DataSetIterator( oaData, iAxisType );
		oaData = null;
		dStart = ( aax.areAxesSwapped( ) ) ? dY + dH : dX;
		dEnd = ( aax.areAxesSwapped( ) ) ? dY : dStart + dW;
		int iDirection = AUTO;
		scPrimaryBase = AutoScale.computeScale( ids,
				oaxPrimaryBase,
				dsi,
				iAxisType,
				dStart,
				dEnd,
				sc,
				axPrimaryBase.getFormatSpecifier( ),
				rtc,
				iDirection,
				1,
				iMarginPercent );
		
		oaxPrimaryBase.set( scPrimaryBase );
		
		AutoScale scPrimaryOrthogonal = null;
		OneAxis oaxPrimaryOrthogonal = aax.getPrimaryOrthogonal( );
		iAxisType = getAxisType( axPrimaryOrthogonal );