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

Example 26 with Graph

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

the class DegreeNGTest method testNullGraphDegree.

@Test
public void testNullGraphDegree() {
    GraphModel graphModel = GraphGenerator.generateNullUndirectedGraph(5);
    Graph graph = graphModel.getGraph();
    Node n = graph.getNode("1");
    Degree d = new Degree();
    int degree = d.calculateDegree(graph, n);
    double avDegree = d.calculateAverageDegree(graph, false, false);
    assertEquals(degree, 0);
    assertEquals(avDegree, 0.0);
}

Example 27 with Graph

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

the class DegreeNGTest method testStarGraphDegree.

@Test
public void testStarGraphDegree() {
    GraphModel graphModel = GraphGenerator.generateStarUndirectedGraph(5);
    Graph graph = graphModel.getGraph();
    Node n1 = graph.getNode("0");
    Node n2 = graph.getNode("1");
    Degree d = new Degree();
    int degree1 = d.calculateDegree(graph, n1);
    int degree2 = d.calculateDegree(graph, n2);
    double avDegree = d.calculateAverageDegree(graph, false, false);
    double expectedAvDegree = 1.6667;
    double diff = Math.abs(avDegree - expectedAvDegree);
    assertEquals(degree1, 5);
    assertEquals(degree2, 1);
    assertTrue(diff < 0.001);
}

Example 28 with Graph

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

the class EigenvectorCentrality method execute.

/**
     *
     * @param graphModel
     */
@Override
public void execute(GraphModel graphModel) {
    isDirected = graphModel.isDirected();
    isCanceled = false;
    Graph graph;
    if (isDirected) {
        graph = graphModel.getDirectedGraphVisible();
    } else {
        graph = graphModel.getUndirectedGraphVisible();
    }
    execute(graph);
}

Example 29 with Graph

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

the class ClusteringCoefficientNGTest method testStarGraphClusteringCoefficient.

@Test
public void testStarGraphClusteringCoefficient() {
    GraphModel graphModel = GraphGenerator.generateStarUndirectedGraph(5);
    Graph graph = graphModel.getGraph();
    ClusteringCoefficient cc = new ClusteringCoefficient();
    cc.setDirected(false);
    ArrayWrapper[] network = new ArrayWrapper[6];
    int[] triangles = new int[6];
    double[] nodeClustering = new double[6];
    HashMap<String, Double> results = cc.computeClusteringCoefficient(graph, network, triangles, nodeClustering, false);
    double avClusteringCoefficient = results.get("clusteringCoefficient");
    assertEquals(avClusteringCoefficient, 0.0);
}

Example 30 with Graph

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

the class DegreeNGTest method testOneNodeDegree.

@Test
public void testOneNodeDegree() {
    GraphModel graphModel = GraphGenerator.generateNullUndirectedGraph(1);
    Graph graph = graphModel.getGraph();
    Node n = graph.getNode("0");
    Degree d = new Degree();
    int degree = d.calculateDegree(graph, n);
    assertEquals(degree, 0);
}