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
DataSetIterator dsiDataBase = scBase.getData( );
		Object oDataOrthogonal;
		DataSetIterator dsiDataOrthogonal = getTypedDataSet( seOrthogonal,
				oaxOrthogonal.getScale( ).getType( ) );
		double dOrthogonalZero = 0;
		if ( ( scOrthogonal.getType( ) & NUMERICAL ) == NUMERICAL )
		{
			dOrthogonalZero = getLocation( scOrthogonal, 0 );
		}
		else
		{
			dOrthogonalZero = scOrthogonal.getStart( );
		}
		double dBaseZero = 0;
		if ( ( scBase.getType( ) & NUMERICAL ) == IConstants.NUMERICAL
				&& !oaxBase.isCategoryScale( ) )
		{
			dBaseZero = getLocation( scBase, 0 );
		}
		else if ( oaxBase.isTickBwtweenCategories( ) )
		{
			dBaseZero = scBase.getStart( );
		}
		else
		{
			dBaseZero = scBase.getStart( ) + scBase.getStartShift( );
		}
		if ( scBase.getType( ) == TEXT || oaxBase.isCategoryScale( ) )
		{
			iUnitCount--;