private List _sim;
    private ListIterator _iter;
    private Timer _simTimer;
<<<<<<< HEAD
    private EdgeDirection _edgeType;
=======
    private boolean _shift = false;
>>>>>>> 9dcbe823686cd2165d081f9947b5fb0ccd0639e6

    /**
     * Creates new form MainFram

    private List _sim;
    private ListIterator _iter;
    private Timer _simTimer;
    private EdgeDirection _edgeType;
    private boolean _shift = false;


    /**
     * Creates new form MainFram