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

Example 41 with GraphModel

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

the class GraphDistanceNGTest method testStarGraphAvPathLength.

@Test
public void testStarGraphAvPathLength() {
    GraphModel graphModel = GraphGenerator.generateStarUndirectedGraph(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 averageDegree = d.getPathLength();
    double res = 1.6667;
    double diff = Math.abs(averageDegree - res);
    assertEquals(averageDegree, res, TOLERANCE);
}

Example 42 with GraphModel

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

the class GraphDensityNGTest method testSelfLoopNodeDensity.

@Test
public void testSelfLoopNodeDensity() {
    GraphModel graphModel = Lookup.getDefault().lookup(GraphController.class).getGraphModel();
    UndirectedGraph undirectedGraph = graphModel.getUndirectedGraph();
    Node currentNode = graphModel.factory().newNode("0");
    undirectedGraph.addNode(currentNode);
    Edge currentEdge = graphModel.factory().newEdge(currentNode, currentNode, false);
    undirectedGraph.addEdge(currentEdge);
    Graph graph = graphModel.getGraph();
    GraphDensity d = new GraphDensity();
    double density = d.calculateDensity(graph, false);
    assertEquals(density, Double.POSITIVE_INFINITY);
}

Example 43 with GraphModel

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

the class GraphDensityNGTest method testDirectedPathGraphDensity.

@Test
public void testDirectedPathGraphDensity() {
    GraphModel graphModel = GraphGenerator.generatePathDirectedGraph(2);
    DirectedGraph graph = graphModel.getDirectedGraph();
    GraphDensity d = new GraphDensity();
    double density = d.calculateDensity(graph, true);
    assertEquals(density, 0.5);
}

Example 44 with GraphModel

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

the class GraphDensityNGTest method testCyclicGraphDensity.

@Test
public void testCyclicGraphDensity() {
    GraphModel graphModel = GraphGenerator.generateCyclicUndirectedGraph(6);
    Graph graph = graphModel.getGraph();
    GraphDensity d = new GraphDensity();
    double density = d.calculateDensity(graph, false);
    assertEquals(density, 0.4);
}

Example 45 with GraphModel

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

the class GraphDensityNGTest method testDirectedCompleteGraphDensity.

@Test
public void testDirectedCompleteGraphDensity() {
    GraphModel graphModel = GraphGenerator.generateCompleteDirectedGraph(5);
    DirectedGraph graph = graphModel.getDirectedGraph();
    GraphDensity d = new GraphDensity();
    double density = d.calculateDensity(graph, true);
    assertEquals(density, 1.0);
}