Examples of org.graphstream.graph.Graph

org.graphstream.graph.Graph

omething with node } With implicit genericity offers by Graph, this can be done easier:

 Graph g = ... ; g.setNodeFactory( new MyNodeFactory() ); g.addNode("root"); MyNode n = g.getNode("root"); for( MyNode node : g.getEachNode() ) { // Do something with node }

Graph elements (nodes and edges) can be accessed using their identifier or their index. Each node / edge has a unique string identifier assigned when the element is created. Each element has an automatically maintained unique index between 0 and {@link #getNodeCount()} - 1 or {@link #getEdgeCount()} -1. When a new element is added, its index is getNodeCount() - 1 or getEdgeCount() - 1. When an element is removed, the element with the biggest index takes its place. Unlike identifiers, indices can change when the graph is modified, but they are always successive. A loop of the form

 for (int i = 0; i < g.getNodeCount(); i++) { Node node = g.getNode(i); // Do something with node }

will always iterate on all the nodes of g.

    testSmallFile();
  }
  
  public void testDynFile() {
    try {
      Graph graph = new MultiGraph("Dynamic !");
      FileSourceGML source = new FileSourceGML();
      
      graph.addAttribute("ui.quality");
      graph.addAttribute("ui.antialias");
      graph.display();
      source.addSink(graph);
      source.begin(TestSourceGML.class.getResourceAsStream("dynamic.gml"));
      int step = 0;
      while(source.nextStep()) {
        System.err.printf("Step %d%n", step);

    } catch(Exception e) {}
  }
  
  public void testBigFile() {
    try {
      Graph graph = new MultiGraph("foo");
      FileSourceGML source = new FileSourceGML();


      graph.addAttribute("ui.quality");
      graph.addAttribute("ui.antialias");
      graph.addAttribute("ui.stylesheet", "node { text-size:8; text-color: #0008; text-alignment: at-right; } edge { text-size:8; text-color: #0008; }");
      graph.display(false);
      source.addSink(graph);
      source.begin(TestSourceGML.class.getResourceAsStream("example2.sif.gml"));
      while(source.nextEvents()) {}
      source.end();
    }

Examples of org.graphstream.graph.Graph

Related Classes of org.graphstream.graph.Graph