/*************************************************************************** Title: GraphBrowser/DummyVertex.java ID: $Id: DummyVertex.java,v 1.1 1997/08/05 22:07:35 berghofe Exp $ Author: Stefan Berghofer, TU Muenchen Copyright 1997 TU Muenchen This class represents a dummy vertex, which is used to simplify the layout algorithm. ***************************************************************************/ package GraphBrowser; import java.util.*; import java.awt.*; class DummyVertex extends Vertex { public boolean isDummy() {return true;} public Object clone() { Vertex ve=new DummyVertex(); ve.setX(getX());ve.setY(getY()); return ve; } public int leftX() { return getX(); } public int rightX() { return getX(); } public void draw(Graphics g) {} }