ResourceBundle.getBundle( Messages.ENGINE, rtc.getLocale( ) ) ) );
ResourceBundle.getBundle( Messages.ENGINE, rtc.getULocale( ).toLocale( ) ) ) );
	public final double getUnitSize( )	{		if ( daTickCoordinates == null )		{			throw new RuntimeException( new ChartException( ChartEnginePlugin.ID,					ChartException.COMPUTATION,					"exception.unit.size.failure", //$NON-NLS-1$ 					ResourceBundle.getBundle( Messages.ENGINE, rtc.getLocale( ) ) ) );		}		return Math.abs( daTickCoordinates[1] - daTickCoordinates[0] );	}