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
final Bounds bo = are.getBounds( );
				final Rectangle r = new Rectangle( (int) ( ( bo.getLeft( ) + dTranslateX ) * dScale ),
						(int) ( ( bo.getTop( ) + dTranslateY ) * dScale ),
						(int) ( bo.getWidth( ) * dScale ),
						(int) ( bo.getHeight( ) * dScale ) );
				fillPathGradient( pt, (Gradient) flBackground, r );
			}
			else if ( flBackground instanceof org.eclipse.birt.chart.model.attribute.Image )
			{
				fillPathImage( pt,
						(org.eclipse.birt.chart.model.attribute.Image) flBackground );
			}
		}
		finally
		{
			pt.dispose( );
		}
		
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.chart.event.IPrimitiveRenderer#drawOval(org.eclipse.birt.chart.event.OvalRenderEvent)
	 */
	public void drawOval( OvalRenderEvent ore ) throws ChartException
	{
		iv.modifyEvent( ore );
		
		
		final LineAttributes lia = ore.getOutline( );