final double dScale = getDevice( ).getDisplayServer( ) .getDpiResolution( ) / 72d;
final double dScale = getDeviceScale( );
	protected void renderBlock( IPrimitiveRenderer ipr, Block b, Object oSource )			throws ChartException	{		final double dScale = getDevice( ).getDisplayServer( )				.getDpiResolution( ) / 72d;		final RectangleRenderEvent rre = (RectangleRenderEvent) ( (EventObjectCache) ipr ).getEventObject( oSource,				RectangleRenderEvent.class );		rre.updateFrom( b, dScale );		ipr.fillRectangle( rre );		ipr.drawRectangle( rre );	}