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
axOverlay = aax.getOverlay( i );
			la = axOverlay.getLabel( );
			scOA = axOverlay.getScale( );
			scOA.setEndPoints( scOA.getStart( )
					- scOA.getStartShift( )
					* iDirection, scOA.getEnd( )
					+ scOA.getEndShift( )
					* iDirection );
			dStart = sc.getStart( );
			dEnd = sc.getEnd( );
			scOA.setEndPoints( dStart, dEnd );
			scOA.computeTicks( ids,
					la,
					axOverlay.getLabelPosition( ),
					aax.getOrientation( ),
					dStart,
					dEnd,
					false,
					null );
			if ( !scOA.isStepFixed( ) )
			{
				oaMinMax = scOA.getMinMax( );
				while ( !scOA.checkFit( ids, la, axOverlay.getLabelPosition( ) ) )
				{
					if ( !scOA.zoomOut( ) )
					{
						break;
					}
					scOA.updateAxisMinMax( oaMinMax[0], oaMinMax[1] );
					scOA.computeTicks( ids,