Getting Started

Links

http://jung.sourceforge.net/

Alternatives

http://www.ubietylab.net/ubigraph/ UbiGraph is a tool for visualizing dynamic graphs.

Maven

<dependency>
  <groupId>jung</groupId>
  <artifactId>jung</artifactId>
  <version>1.7.6</version>
</dependency>

Sample

package com.sample;

import java.io.IOException;

import javax.swing.JFrame;

import edu.uci.ics.jung.graph.Graph;
import edu.uci.ics.jung.graph.Vertex;
import edu.uci.ics.jung.graph.decorators.StringLabeller;
import edu.uci.ics.jung.graph.decorators.StringLabeller.UniqueLabelException;
import edu.uci.ics.jung.graph.impl.DirectedSparseGraph;
import edu.uci.ics.jung.graph.impl.DirectedSparseVertex;
import edu.uci.ics.jung.visualization.FRLayout;
import edu.uci.ics.jung.visualization.PluggableRenderer;
import edu.uci.ics.jung.visualization.VisualizationViewer;

import edu.uci.ics.jung.graph.impl.DirectedSparseEdge;
import edu.uci.ics.jung.io.PajekNetWriter;

public class Sample {

    public static void main(String[] args) throws UniqueLabelException,
            IOException {

        PluggableRenderer renderer = new PluggableRenderer();
        Graph graph = getGraph(renderer);
        FRLayout layout = new FRLayout(graph);
        VisualizationViewer viewer = new VisualizationViewer(layout, renderer);

        JFrame jf = new JFrame();
        jf.getContentPane().add(viewer);
        jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        jf.pack();
        jf.setVisible(true);
    }

    public static Graph getGraph(PluggableRenderer renderer)
            throws UniqueLabelException, IOException {
        Graph graph = new DirectedSparseGraph();
        StringLabeller labeller = StringLabeller.getLabeller(graph);
        renderer.setVertexStringer(labeller);
        addNodes(graph, labeller);

        save(graph, labeller);

        return graph;
    }

    public static void addNodes(Graph graph, StringLabeller labeller)
            throws UniqueLabelException {
        Vertex node1 = graph.addVertex(new DirectedSparseVertex());
        labeller.setLabel(node1, "Joe");
        Vertex node2 = graph.addVertex(new DirectedSparseVertex());
        labeller.setLabel(node2, "Barry");
        Vertex node3 = graph.addVertex(new DirectedSparseVertex());
        labeller.setLabel(node3, "Martin");

        graph.addEdge(new DirectedSparseEdge(node1, node2));
        graph.addEdge(new DirectedSparseEdge(node1, node3));
    }

    public static void save(Graph graph, StringLabeller labeller)
            throws IOException {
        new PajekNetWriter().save(graph, "test-graph.pajek", labeller, null);
    }
}