this.label = new String(label);
this.label = label;
    public Node(String label, int index, int shape, int menu, int color) {	super();	this.label = new String(label);	this.index = index;	this.shape = shape;	this.menu = menu;	this.color = NodeColor.colorOf(color);	this.length = length;	this.width = width;	initOM();    }