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/PlotWithAxes.java
{
				dY1 -= dXAxisTitleThickness;
			}
			else if ( iXTitleLocation == BELOW )
			{
				dY2 += dXAxisTitleThickness;
			}
			
			if ( dY1 < dBlockY )
			{
				final double dDelta = ( dBlockY - dY1 );
				dY1 = dBlockY;
				dY += dDelta;
				dY2 += dDelta;
			}
			double dDeltaY1 = dY - dY1;
			double dDeltaY2 = dY2 - dY;
			
			dXAxisLabelsThickness = 0; 
			if ( iXLabelLocation == ABOVE )
			{
				
				dXAxisLabelsThickness = dY2 - dY1;
			}
			else if ( iXLabelLocation == BELOW )
			{
				
				dY2 = ( dY + dAppliedXAxisPlotSpacing );
				dXAxisLabelsThickness = dY2 - dY1;
			}