Bug 212291 SWT Chart render engine always uses 96 DPI(Display) resolution
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/computation/withaxes/PlotWith2DAxes.java
{
					dPercentMax = 100;
				}
				dAxisMin = dPercentMin;
				dAxisMax = dPercentMax;
			}
			if ( ( iType & LOGARITHMIC ) == LOGARITHMIC )
			{
				dAxisMin = 1;
			}
			oMin = new Double( dAxisMin );
			oMax = new Double( dAxisMax );
		}
		
		
		if ( oMin == null && oMax == null )
		{
			if ( iType == DATE_TIME )
			{
				int year = Calendar.getInstance( ).get( Calendar.YEAR );
				oMin = new CDateTime( year, 1, 1 );
				oMax = new CDateTime( year, 12, 31 );
			}
			else if ( ( iType & NUMERICAL ) == NUMERICAL )
			{
				if ( ( iType & PERCENT ) == PERCENT )
				{
					oMin = new Double( 0 );
					oMax = new Double( 100 );
				}