Bug 210635 Incorrect preview of chart after reverse categories.
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/computation/withaxes/PlotWith2DAxes.java
{
			dBaseZero = scBase.getStart( ) + scBase.getStartShift( );
		}
		if ( scBase.getType( ) == TEXT || oaxBase.isCategoryScale( ) )
		{
			iUnitCount--;
			if ( oaxBase.isTickBwtweenCategories( ) )
			{
				iUnitCount--;
			}
		}
		double dX = 0, dY = 0;
		Location lo;
		final int iBaseCount = dsiDataBase.size( );
		final int iOrthogonalCount = dsiDataOrthogonal.size( );
		DataPointHints[] dpa = null;
		
		if ( iBaseCount != iOrthogonalCount )
		{
			logger.log( ILogger.INFORMATION,
					Messages.getString( "exception.base.orthogonal.inconsistent.count", 
							new Object[]{
									new Integer( iBaseCount ),
									new Integer( iOrthogonalCount )
							},
							rtc.getULocale( ) ) );
		}
		else
		{
			dpa = new DataPointHints[iBaseCount];