Bug 212291 SWT Chart render engine always uses 96 DPI(Display) resolution
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/render/AxesRenderer.java
{
					final StructureSource iSource = ( oParent instanceof Legend )
							? ( StructureSource.createSeries( se ) )
							: ( WrappedStructureSource.createSeriesDataPoint( se,
									dph ) );
					final InteractionEvent iev = (InteractionEvent) ( (EventObjectCache) ipr ).getEventObject( iSource,
							InteractionEvent.class );
					Trigger tg;
					for ( int t = 0; t < elTriggers.size( ); t++ )
					{
						tg = TriggerImpl.copyInstance( (Trigger) elTriggers.get( t ) );
						this.processTrigger( tg, iSource );
						iev.addTrigger( tg );
					}
					iev.setHotSpot( preCopy );
					ipr.enableInteraction( iev );
				}
			}
		}
	}
	/**
	 * Renders all marker lines (and labels at requested positions) associated
	 * with every axis in the plot Note that marker lines are drawn immediately
	 * (not rendered as deferred) at the appropriate Z-order
	 * 
	 * @param oaxa
	 * @param boPlotClientArea
	 * 
	 * @throws RenderingException
	 */