Bug 212291 SWT Chart render engine always uses 96 DPI(Display) resolution
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/render/AxesRenderHelper.java
if ( bRenderAxisLabels )
			{
				nde.setValue( dAxisValue );
				try
				{
					sText = ValueFormatter.format( nde,
							fs,
							ax.getRunTimeContext( ).getULocale( ),
							df );
				}
				catch ( ChartException dfex )
				{
					logger.log( dfex );
					sText = IConstants.NULL_STRING;
				}
				la.getCaption( ).setValue( sText );
			}
		}
		public void initialize( ) throws ChartException
		{
			dAxisValue = Methods.asDouble( sc.getMinimum( ) ).doubleValue( );
			dAxisStep = Methods.asDouble( sc.getStep( ) ).doubleValue( );
			if ( fs == null )
			{
				df = sc.computeDecimalFormat( dAxisValue, dAxisStep );
			}
		}
	}
	private final class DatetimeAxisTypeComputation implements