Package prefuse.data

Examples of prefuse.data.Graph$Listener

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    /**
     * @see prefuse.action.Action#run(double)
     */
    public void run(double frac) {
        Graph g = (Graph)m_vis.getGroup(m_group);
        initSchema(g.getNodes());
       
        Point2D anchor = getLayoutAnchor();
        NodeItem n = getLayoutRoot();
        layout(n,anchor.getX(),anchor.getY());
    }
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    /**
     * @see prefuse.action.Action#run(double)
     */
    public void run(double frac) {
        Graph g = (Graph)m_vis.getGroup(m_group);
        initSchema(g.getNodes());
       
        Arrays.fill(m_depths, 0);
        m_maxDepth = 0;
       
        Point2D a = getLayoutAnchor();
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    /**
     * @see prefuse.action.Action#run(double)
     */
    public void run(double frac) {
        Graph g = (Graph)m_vis.getGroup(m_group);
        initSchema(g.getNodes());
       
        m_origin = getLayoutAnchor();
        NodeItem n = getLayoutRoot();
        Params np = (Params)n.get(PARAMS);
       
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    /**
     * @see prefuse.action.Action#run(double)
     */
    public void run(double frac) {
        Graph g = (Graph)m_vis.getGroup(m_group);
        Rectangle2D bounds = super.getLayoutBounds();
        init(g, bounds);

        for (int curIter=0; curIter < maxIter; curIter++ ) {

            // Calculate repulsion
            for (Iterator iter = g.nodes(); iter.hasNext();) {
                NodeItem n = (NodeItem)iter.next();
                if (n.isFixed()) continue;
                calcRepulsion(g, n);
            }

            // Calculate attraction
            for (Iterator iter = g.edges(); iter.hasNext();) {
                EdgeItem e = (EdgeItem) iter.next();
                calcAttraction(e);
            }

            for (Iterator iter = g.nodes(); iter.hasNext();) {
                NodeItem n = (NodeItem)iter.next();
                if (n.isFixed()) continue;
                calcPositions(n,bounds);
            }

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    /**
     * @see prefuse.action.Action#run(double)
     */
    public void run(double frac) {
        Graph g = (Graph)m_vis.getGroup(m_group);
        initSchema(g.getNodes());
       
        Point2D anchor = getLayoutAnchor();
        NodeItem n = getLayoutRoot();
        layout(n,anchor.getX(),anchor.getY());
    }
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    /**
     * @see prefuse.action.Action#run(double)
     */
    public void run(double frac) {
        Graph g = (Graph)m_vis.getGroup(m_group);
        initSchema(g.getNodes());
       
        Arrays.fill(m_depths, 0);
        m_maxDepth = 0;
       
        Point2D a = getLayoutAnchor();
        m_ax = a.getX();
        m_ay = a.getY();
       
        NodeItem root = getLayoutRoot();
        Params rp = getParams(root);

  g.getSpanningTree(root);
       
        // do first pass - compute breadth information, collect depth info
        firstWalk(root, 0, 1);
       
        // sum up the depth info
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     */
    private void computeAreas(NodeItem root) {
        int leafCount = 0;
       
        // ensure area data column exists
        Graph g = (Graph)m_vis.getGroup(m_group);
        TupleSet nodes = g.getNodes();
        nodes.addColumns(AREA_SCHEMA);
       
        // reset all sizes to zero
        Iterator iter = new TreeNodeIterator(root);
        while ( iter.hasNext() ) {
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     * number of nodes
     * @param n the number of nodes
     * @return a graph with n nodes and no edges
     */
    public static Graph getNodes(int n) {
        Graph g = new Graph();
        g.getNodeTable().addColumns(LABEL_SCHEMA);
       
        for ( int i=0; i < n; i++ ) {
            Node node = g.addNode();
            node.setString(LABEL, String.valueOf(i));
        }
        return g;
    }
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     * number of satellite nodes.
     * @param n the number of points of the star
     * @return a "star" graph with n points, for a total of n+1 nodes
     */
    public static Graph getStar(int n) {
        Graph g = new Graph();
        g.getNodeTable().addColumns(LABEL_SCHEMA);
       
        Node r = g.addNode();
        r.setString(LABEL, "0");
       
        for ( int i=1; i <= n; ++i ) {
            Node nn = g.addNode();
            nn.setString(LABEL, String.valueOf(i));
            g.addEdge(r, nn);
        }
        return g;
    }
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     * is a neighbor of every other node.
     * @param n the number of nodes in the graph
     * @return a clique of size n
     */
    public static Graph getClique(int n) {
        Graph g = new Graph();
        g.getNodeTable().addColumns(LABEL_SCHEMA);
       
        Node nodes[] = new Node[n];
        for ( int i = 0; i < n; ++i ) {
            nodes[i] = g.addNode();
            nodes[i].setString(LABEL, String.valueOf(i));
        }
        for ( int i = 0; i < n; ++i ) {
            for ( int j = i; j < n; ++j )
                if ( i != j )
                    g.addEdge(nodes[i], nodes[j]);
        }
        return g;
    }
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