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
if ( dX2 > dBlockX + dBlockWidth )
				{
					final Object[] oaMinMax = scX.getMinMax( );
					boolean bForceBreak = false;
					
					
					
					
					
					do
					{
						
						
						scX.setEndPoints( scX.getStart( ) - scX.getStartShift( ),
								scX.getEnd( ) + scX.getEndShift( ) ); 
						scX.resetShifts( );
						
						
						double[] da = scX.getEndPoints( );
						double dT_RI = dX2 - ( dBlockX + dBlockWidth ); 
						
						
						if ( scX.getDirection( ) == BACKWARD )
						{
							double dAMin_AMax = da[0] - da[1];
							double dAMin_RI = Math.abs( dX - da[1] );
							double dDelta = Math.abs( dT_RI / dAMin_RI )
									* dAMin_AMax;