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

Example 36 with GraphModel

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

the class GraphDistanceNGTest method testTwoConnectedNodesAvPathLength.

@Test
public void testTwoConnectedNodesAvPathLength() {
    GraphModel graphModel = GraphGenerator.generatePathUndirectedGraph(2);
    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();
    assertEquals(averageDegree, 1.0, TOLERANCE);
}

Example 37 with GraphModel

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

the class GraphDistanceNGTest method testCyclic5GraphBetweenness.

@Test
public void testCyclic5GraphBetweenness() {
    GraphModel graphModel = GraphGenerator.generateCyclicUndirectedGraph(5);
    GraphDistance d = new GraphDistance();
    d.initializeStartValues();
    UndirectedGraph undirectedGraph = graphModel.getUndirectedGraph();
    HashMap<Node, Integer> indicies = d.createIndiciesMap(undirectedGraph);
    HashMap<String, double[]> metricsMap = (HashMap) d.calculateDistanceMetrics(graphModel.getGraph(), indicies, false, false);
    double[] betweenness = metricsMap.get(GraphDistance.BETWEENNESS);
    Node n4 = undirectedGraph.getNode("3");
    int index4 = indicies.get(n4);
    assertEquals(betweenness[index4], 1.0, TOLERANCE);
}

Example 38 with GraphModel

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

the class GraphDistanceNGTest method testCompleteGraphRadius.

@Test
public void testCompleteGraphRadius() {
    GraphModel graphModel = GraphGenerator.generateCompleteUndirectedGraph(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, 1.0, TOLERANCE);
}

Example 39 with GraphModel

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

the class GraphDistanceNGTest method testNullGraphBetweenness.

@Test
public void testNullGraphBetweenness() {
    GraphModel graphModel = GraphGenerator.generateNullUndirectedGraph(5);
    GraphDistance d = new GraphDistance();
    d.initializeStartValues();
    UndirectedGraph undirectedGraph = graphModel.getUndirectedGraph();
    HashMap<Node, Integer> indicies = d.createIndiciesMap(undirectedGraph);
    HashMap<String, double[]> metricsMap = (HashMap) d.calculateDistanceMetrics(graphModel.getGraph(), indicies, false, false);
    double[] betweenness = metricsMap.get(GraphDistance.BETWEENNESS);
    Node n1 = undirectedGraph.getNode("0");
    int index1 = indicies.get(n1);
    assertEquals(betweenness[index1], 0.0, TOLERANCE);
}

Example 40 with GraphModel

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

the class GraphDistanceNGTest method testDirectedPathGraphBetweenness.

@Test
public void testDirectedPathGraphBetweenness() {
    GraphModel graphModel = GraphGenerator.generatePathDirectedGraph(4);
    GraphDistance d = new GraphDistance();
    d.initializeStartValues();
    DirectedGraph directedGraph = graphModel.getDirectedGraph();
    HashMap<Node, Integer> indicies = d.createIndiciesMap(graphModel.getGraph());
    HashMap<String, double[]> metricsMap = (HashMap) d.calculateDistanceMetrics(graphModel.getGraph(), indicies, true, false);
    double[] betweenness = metricsMap.get(GraphDistance.BETWEENNESS);
    Node n2 = directedGraph.getNode("1");
    int index2 = indicies.get(n2);
    assertEquals(betweenness[index2], 2.0, TOLERANCE);
}