final Bounds bo = getPlotBounds( ).adjustedInstance( getPlotInsets( ) );
final Bounds bo = getAdjustedPlotBounds( false );
	public final Location getPanningOffset( )	{		final Bounds bo = getPlotBounds( ).adjustedInstance( getPlotInsets( ) );		double xOff = bo.getLeft( );		double yOff = bo.getTop( );		// TODO read from custom panning setting		return LocationImpl.create( xOff, yOff );	}