Examples with GraphModel org.gephi.graph.api.GraphModel used on opensource projects

Example 46 with GraphModel

use of org.gephi.graph.api.GraphModel in project gephi by gephi.

the class GraphDensityNGTest method testCompleteGraphDensity.

@Test
public void testCompleteGraphDensity() {
    GraphModel graphModel = GraphGenerator.generateCompleteUndirectedGraph(5);
    Graph graph = graphModel.getGraph();
    GraphDensity d = new GraphDensity();
    double density = d.calculateDensity(graph, false);
    assertEquals(density, 1.0);
}

Example 47 with GraphModel

use of org.gephi.graph.api.GraphModel in project gephi by gephi.

the class GraphDensityNGTest method testDirectedCyclicGraphDensity.

@Test
public void testDirectedCyclicGraphDensity() {
    GraphModel graphModel = GraphGenerator.generateCyclicDirectedGraph(5);
    DirectedGraph graph = graphModel.getDirectedGraph();
    GraphDensity d = new GraphDensity();
    double density = d.calculateDensity(graph, true);
    assertEquals(density, 0.25);
}

Example 48 with GraphModel

use of org.gephi.graph.api.GraphModel in project gephi by gephi.

the class GraphDistanceNGTest method testSpecial1UndirectedGraphCloseness.

@Test
public void testSpecial1UndirectedGraphCloseness() {
    GraphModel graphModel = Lookup.getDefault().lookup(GraphController.class).getGraphModel();
    UndirectedGraph undirectedGraph = graphModel.getUndirectedGraph();
    Node node1 = graphModel.factory().newNode("0");
    Node node2 = graphModel.factory().newNode("1");
    Node node3 = graphModel.factory().newNode("2");
    Node node4 = graphModel.factory().newNode("3");
    Node node5 = graphModel.factory().newNode("4");
    Node node6 = graphModel.factory().newNode("5");
    Node node7 = graphModel.factory().newNode("6");
    undirectedGraph.addNode(node1);
    undirectedGraph.addNode(node2);
    undirectedGraph.addNode(node3);
    undirectedGraph.addNode(node4);
    undirectedGraph.addNode(node5);
    undirectedGraph.addNode(node6);
    undirectedGraph.addNode(node7);
    Edge edge12 = graphModel.factory().newEdge(node1, node2, false);
    Edge edge13 = graphModel.factory().newEdge(node1, node3, false);
    Edge edge14 = graphModel.factory().newEdge(node1, node4, false);
    Edge edge15 = graphModel.factory().newEdge(node1, node5, false);
    Edge edge16 = graphModel.factory().newEdge(node1, node6, false);
    Edge edge27 = graphModel.factory().newEdge(node2, node7, false);
    Edge edge37 = graphModel.factory().newEdge(node3, node7, false);
    Edge edge47 = graphModel.factory().newEdge(node4, node7, false);
    Edge edge57 = graphModel.factory().newEdge(node5, node7, false);
    Edge edge67 = graphModel.factory().newEdge(node6, node7, false);
    undirectedGraph.addEdge(edge12);
    undirectedGraph.addEdge(edge13);
    undirectedGraph.addEdge(edge14);
    undirectedGraph.addEdge(edge15);
    undirectedGraph.addEdge(edge16);
    undirectedGraph.addEdge(edge27);
    undirectedGraph.addEdge(edge37);
    undirectedGraph.addEdge(edge47);
    undirectedGraph.addEdge(edge57);
    undirectedGraph.addEdge(edge67);
    GraphDistance d = new GraphDistance();
    d.initializeStartValues();
    UndirectedGraph hierarchicalUndirectedGraph = graphModel.getUndirectedGraph();
    HashMap<Node, Integer> indicies = d.createIndiciesMap(hierarchicalUndirectedGraph);
    HashMap<String, double[]> metricsMap = (HashMap) d.calculateDistanceMetrics(graphModel.getGraph(), indicies, false, false);
    double[] closeness = metricsMap.get(GraphDistance.CLOSENESS);
    int index7 = indicies.get(node7);
    double res = 1.0 / 1.1667;
    double diff = 0.01;
    assertEquals(closeness[index7], res, TOLERANCE);
}

Example 49 with GraphModel

use of org.gephi.graph.api.GraphModel in project gephi by gephi.

the class GraphDistanceNGTest method testDirectedStarOutGraphCloseness.

@Test
public void testDirectedStarOutGraphCloseness() {
    GraphModel graphModel = Lookup.getDefault().lookup(GraphController.class).getGraphModel();
    DirectedGraph directedGraph = graphModel.getDirectedGraph();
    Node firstNode = graphModel.factory().newNode("0");
    directedGraph.addNode(firstNode);
    for (int i = 1; i <= 5; i++) {
        Node currentNode = graphModel.factory().newNode(((Integer) i).toString());
        directedGraph.addNode(currentNode);
        Edge currentEdge = graphModel.factory().newEdge(firstNode, currentNode);
        directedGraph.addEdge(currentEdge);
    }
    GraphDistance d = new GraphDistance();
    d.initializeStartValues();
    HashMap<Node, Integer> indicies = d.createIndiciesMap(graphModel.getGraph());
    HashMap<String, double[]> metricsMap = (HashMap) d.calculateDistanceMetrics(graphModel.getGraph(), indicies, true, false);
    double[] closeness = metricsMap.get(GraphDistance.CLOSENESS);
    Node n1 = directedGraph.getNode("0");
    Node n6 = directedGraph.getNode("5");
    int index1 = indicies.get(n1);
    int index6 = indicies.get(n6);
    assertEquals(closeness[index1], 1.0, TOLERANCE);
    assertEquals(closeness[index6], 0.0, TOLERANCE);
}

Example 50 with GraphModel

use of org.gephi.graph.api.GraphModel in project gephi by gephi.

the class GraphDistanceNGTest method testNullGraphRadius.

@Test
public void testNullGraphRadius() {
    GraphModel graphModel = GraphGenerator.generateNullUndirectedGraph(5);
    GraphDistance d = new GraphDistance();
    d.initializeStartValues();
    UndirectedGraph undirectedGraph = graphModel.getUndirectedGraph();
    HashMap<Node, Integer> indicies = d.createIndiciesMap(undirectedGraph);
    d.calculateDistanceMetrics(graphModel.getGraph(), indicies, false, false);
    double radius = d.getRadius();
    assertEquals(radius, 0.0, TOLERANCE);
}