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
(org.eclipse.birt.chart.model.attribute.Image) flBackground );
			}
		}
		finally
		{
			pt.dispose( );
		}
		
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.chart.event.IPrimitiveRenderer#drawPolygon(org.eclipse.birt.chart.event.PolygonRenderEvent)
	 */
	public void drawPolygon( PolygonRenderEvent pre ) throws ChartException
	{
		iv.modifyEvent( pre );
		
		final LineAttributes lia = pre.getOutline( );
		if ( !validateLineAttributes( pre.getSource( ), lia ) )
		{
			return;
		}
		
		final Color cFG = (Color) validateEdgeColor( lia.getColor( ),
				pre.getBackground( ),
				_ids );
		if ( cFG == null )
		{
			return;