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Sample programs using Graph Visualization.
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/*
 * Copyright (c) 2003, The JUNG Authors
 * All rights reserved.
 *
 * This software is open-source under the BSD license; see either "license.txt"
 * or https://github.com/tomnelson/jungrapht-visualization/blob/master/LICENSE for a description.
 *
 */
package org.jungrapht.samples;

import java.awt.*;
import java.util.stream.IntStream;
import javax.swing.*;
import org.jgrapht.Graph;
import org.jgrapht.graph.DefaultGraphType;
import org.jgrapht.graph.builder.GraphTypeBuilder;
import org.jgrapht.util.SupplierUtil;
import org.jungrapht.visualization.VisualizationViewer;
import org.jungrapht.visualization.layout.algorithms.EiglspergerLayoutAlgorithm;
import org.jungrapht.visualization.layout.model.LayoutModel;

/**
 * A demo that shows a minimal visualization configuration
 *
 * Use the mouse wheel to scale Use Mouse Button 1 to pan Use CTRL-Mouse Button 1 to select
 * (select individual vertices/edges or drag a rectangular area to select contained vertices)
 *
 * @author Tom Nelson
 */
public class MinimalEiglsperger {

  private MinimalEiglsperger() {

    VisualizationViewer vv =
        VisualizationViewer.builder(createGraph())
            .viewSize(new Dimension(700, 700))
            .layoutAlgorithm(EiglspergerLayoutAlgorithm.builder().build())
            .build();

    LayoutModel layoutModel = vv.getVisualizationModel().getLayoutModel();
    vv.setVertexToolTipFunction(v -> v + " p:" + layoutModel.apply(v));
    // create a frame to hold the graph visualization
    final JFrame frame = new JFrame();
    frame.getContentPane().add(vv.getComponent());
    frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
    frame.pack();
    frame.setVisible(true);
  }

  public static void main(String[] args) {
    new MinimalEiglsperger();
  }

  private Graph createGraph() {
    Graph graph =
        GraphTypeBuilder.forGraphType(DefaultGraphType.dag())
            .edgeSupplier(SupplierUtil.createIntegerSupplier())
            .buildGraph();

    IntStream.rangeClosed(0, 10).forEach(graph::addVertex);
    graph.addEdge(0, 1);
    graph.addEdge(3, 0);
    graph.addEdge(0, 4);
    graph.addEdge(4, 5);
    graph.addEdge(5, 3);
    graph.addEdge(2, 1);
    graph.addEdge(4, 1);
    graph.addEdge(8, 2);
    graph.addEdge(3, 8);
    graph.addEdge(6, 7);
    graph.addEdge(7, 5);
    graph.addEdge(0, 9);
    graph.addEdge(9, 8);
    graph.addEdge(7, 6);
    graph.addEdge(6, 5);
    graph.addEdge(4, 2);
    graph.addEdge(5, 4);
    graph.addEdge(4, 10);
    graph.addEdge(10, 4);

    return graph;
  }
}