Bug 212371 [Regression] Auto-scale does not work correctly and gridline is not shown anymore when run the attached java file [13]
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/computation/withaxes/AutoScale.java
{
				df = computeDecimalFormat( dAxisValue, dAxisStep );
			}
			final NumberDataElement nde = NumberDataElementImpl.create( 0 );
			for ( int i = 0; i < da.size( ); i++ )
			{
				
				
				
				nde.setValue( dAxisValue );
				try
				{
					sText = ValueFormatter.format( nde,
							fs,
							rtc.getULocale( ),
							df );
				}
				catch ( ChartException dfex )
				{
					logger.log( dfex );
					sText = NULL_STRING;
				}
				if ( iLabelLocation == ABOVE || iLabelLocation == BELOW )
				{
					x = da.getCoordinate( i ) * dZoomFactor;
				}
				else if ( iLabelLocation == LEFT || iLabelLocation == RIGHT )
				{
					y = da.getCoordinate( i ) * dZoomFactor;
				}