Bug 210635 Incorrect preview of chart after reverse categories.
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/computation/withaxes/PlotWith2DAxes.java
* @param bo
	 * 
	 */
	public final void compute( Bounds bo ) throws ChartException,
			IllegalArgumentException
	{
		bo = bo.scaledInstance( dPointToPixel ); 
		dSeriesThickness = ( ids.getDpiResolution( ) / 72d )
				* cwa.getSeriesThickness( );
		
		double dX = bo.getLeft( ) + insCA.getLeft( );
		double dY = bo.getTop( ) + insCA.getTop( );
		double dW = bo.getWidth( ) - insCA.getLeft( ) - insCA.getRight( );
		double dH = bo.getHeight( ) - insCA.getTop( ) - insCA.getBottom( );
		iDimension = getDimension( cwa.getDimension( ) );
		dXAxisPlotSpacing = cwa.getPlot( ).getHorizontalSpacing( )
				* dPointToPixel; 
		dYAxisPlotSpacing = cwa.getPlot( ).getVerticalSpacing( )
				* dPointToPixel; 
		if ( iDimension == TWO_5_D )
		{
			dY += dSeriesThickness;
			dH -= dSeriesThickness;
			dW -= dSeriesThickness;
			bo.setHeight( dH );
			bo.setTop( dY );
			bo.setWidth( dW );
		}
		
		if ( aax.getOverlayCount( ) > 0 )