Bug 212291 SWT Chart render engine always uses 96 DPI(Display) resolution
chart/org.eclipse.birt.chart.device.swt/src/org/eclipse/birt/chart/device/swt/SwtRendererImpl.java
else if ( pre instanceof AreaRenderEvent )
		{
			final Bounds bo = ( (AreaRenderEvent) pre ).getBounds( );
			for ( int i = 0; i < tga.length; i++ )
			{
				tc = tga[i].getCondition( );
				al = (ArrayList) _lhmAllTriggers.get( tc );
				if ( al == null )
				{
					al = new ArrayList( 4 ); 
					_lhmAllTriggers.put( tc, al );
				}
				al.add( new RegionAction( iev.getStructureSource( ),
						bo,
						tga[i].getAction( ),
						dTranslateX,
						dTranslateY,
						dScale,
						clipping ) );
			}
		}
		
		clipping.dispose( );
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.chart.event.IPrimitiveRenderer#drawArea(org.eclipse.birt.chart.event.AreaRenderEvent)
	 */
	public void drawArea( AreaRenderEvent are ) throws ChartException