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

Example 11 with GraphModel

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

the class DegreeNGTest method testDirectedPathGraphDegree.

@Test
public void testDirectedPathGraphDegree() {
    GraphModel graphModel = GraphGenerator.generatePathDirectedGraph(2);
    DirectedGraph graph = graphModel.getDirectedGraph();
    Node n1 = graph.getNode("0");
    Node n2 = graph.getNode("1");
    Degree d = new Degree();
    int inDegree1 = d.calculateInDegree(graph, n1);
    int inDegree2 = d.calculateInDegree(graph, n2);
    int outDegree1 = d.calculateOutDegree(graph, n1);
    double avDegree = d.calculateAverageDegree(graph, true, false);
    assertEquals(inDegree1, 0);
    assertEquals(inDegree2, 1);
    assertEquals(outDegree1, 1);
    assertEquals(avDegree, 0.5);
}

Example 12 with GraphModel

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

the class DegreeNGTest method testSelfLoopDirectedGraphDegree.

@Test
public void testSelfLoopDirectedGraphDegree() {
    GraphModel graphModel = GraphGenerator.generateSelfLoopDirectedGraph(1);
    DirectedGraph graph = graphModel.getDirectedGraph();
    Node n = graph.getNode("0");
    Degree d = new Degree();
    assertEquals(d.calculateDegree(graph, n), 2);
    assertEquals(d.calculateInDegree(graph, n), 1);
    assertEquals(d.calculateOutDegree(graph, n), 1);
}

Example 13 with GraphModel

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

the class EigenvectorCentralityNGTest method testNullGraphEigenvectorCentrality.

@Test
public void testNullGraphEigenvectorCentrality() {
    GraphModel graphModel = GraphGenerator.generateNullUndirectedGraph(5);
    UndirectedGraph graph = graphModel.getUndirectedGraph();
    EigenvectorCentrality ec = new EigenvectorCentrality();
    ec.setDirected(false);
    double[] centralities = new double[5];
    HashMap<Integer, Node> indicies = new HashMap();
    HashMap<Node, Integer> invIndicies = new HashMap();
    ec.fillIndiciesMaps(graph, centralities, indicies, invIndicies);
    ec.calculateEigenvectorCentrality(graph, centralities, indicies, invIndicies, false, 100);
    Node n2 = graph.getNode("1");
    int index = invIndicies.get(n2);
    double ec2 = centralities[index];
    assertEquals(ec2, 0.0);
}

Example 14 with GraphModel

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

the class EigenvectorCentralityNGTest method testTwoConnectedNodesEigenvectorCentrality.

@Test
public void testTwoConnectedNodesEigenvectorCentrality() {
    GraphModel graphModel = GraphGenerator.generateCompleteUndirectedGraph(2);
    UndirectedGraph graph = graphModel.getUndirectedGraph();
    EigenvectorCentrality ec = new EigenvectorCentrality();
    double[] centralities = new double[2];
    HashMap<Integer, Node> indicies = new HashMap();
    HashMap<Node, Integer> invIndicies = new HashMap();
    ec.fillIndiciesMaps(graph, centralities, indicies, invIndicies);
    ec.calculateEigenvectorCentrality(graph, centralities, indicies, invIndicies, false, 100);
    Node n1 = graph.getNode("0");
    int index = invIndicies.get(n1);
    double ec1 = centralities[index];
    assertEquals(ec1, 1.0);
}

Example 15 with GraphModel

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

the class EigenvectorCentralityNGTest method testOneNodeEigenvectorCentrality.

@Test
public void testOneNodeEigenvectorCentrality() {
    GraphModel graphModel = GraphGenerator.generateNullUndirectedGraph(1);
    UndirectedGraph graph = graphModel.getUndirectedGraph();
    EigenvectorCentrality ec = new EigenvectorCentrality();
    double[] centralities = new double[1];
    HashMap<Integer, Node> indicies = new HashMap();
    HashMap<Node, Integer> invIndicies = new HashMap();
    ec.fillIndiciesMaps(graph, centralities, indicies, invIndicies);
    ec.calculateEigenvectorCentrality(graph, centralities, indicies, invIndicies, false, 100);
    Node n1 = graph.getNode("0");
    int index = invIndicies.get(n1);
    double ec1 = centralities[index];
    assertEquals(ec1, 0.0);
}