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

Example 46 with Node

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

the class ConnectedComponentsNGTest method testSpecial1UndirectedGraphConnectedComponents.

@Test
public void testSpecial1UndirectedGraphConnectedComponents() {
    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");
    undirectedGraph.addNode(node1);
    undirectedGraph.addNode(node2);
    undirectedGraph.addNode(node3);
    undirectedGraph.addNode(node4);
    undirectedGraph.addNode(node5);
    Edge edge12 = graphModel.factory().newEdge(node1, node2, false);
    Edge edge14 = graphModel.factory().newEdge(node1, node4, false);
    Edge edge23 = graphModel.factory().newEdge(node2, node3, false);
    Edge edge25 = graphModel.factory().newEdge(node2, node5, false);
    Edge edge35 = graphModel.factory().newEdge(node3, node5, false);
    Edge edge43 = graphModel.factory().newEdge(node4, node3, false);
    Edge edge51 = graphModel.factory().newEdge(node5, node1, false);
    Edge edge54 = graphModel.factory().newEdge(node5, node4, false);
    undirectedGraph.addEdge(edge12);
    undirectedGraph.addEdge(edge14);
    undirectedGraph.addEdge(edge23);
    undirectedGraph.addEdge(edge25);
    undirectedGraph.addEdge(edge35);
    undirectedGraph.addEdge(edge43);
    undirectedGraph.addEdge(edge51);
    undirectedGraph.addEdge(edge54);
    UndirectedGraph graph = graphModel.getUndirectedGraph();
    ConnectedComponents c = new ConnectedComponents();
    HashMap<Node, Integer> indicies = c.createIndiciesMap(graph);
    LinkedList<LinkedList<Node>> components = c.computeWeeklyConnectedComponents(graph, indicies);
    assertEquals(components.size(), 1);
}

Example 47 with Node

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

the class ConnectedComponentsNGTest method testNullGraphWeeklyConnectedComponents.

@Test
public void testNullGraphWeeklyConnectedComponents() {
    GraphModel graphModel = GraphGenerator.generateNullUndirectedGraph(5);
    UndirectedGraph graph = graphModel.getUndirectedGraph();
    Node n0 = graph.getNode("0");
    Node n1 = graph.getNode("1");
    Node n2 = graph.getNode("2");
    Node n3 = graph.getNode("3");
    Node n4 = graph.getNode("4");
    ConnectedComponents c = new ConnectedComponents();
    HashMap<Node, Integer> indicies = new HashMap<>();
    indicies.put(n0, 0);
    indicies.put(n1, 1);
    indicies.put(n2, 2);
    indicies.put(n3, 3);
    indicies.put(n4, 4);
    LinkedList<LinkedList<Node>> components = c.computeWeeklyConnectedComponents(graph, indicies);
    assertEquals(components.size(), 5);
}

Example 48 with Node

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

the class ConnectedComponentsNGTest method testSpecial2UndirectedGraphConnectedComponents.

@Test
public void testSpecial2UndirectedGraphConnectedComponents() {
    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");
    Node node8 = graphModel.factory().newNode("7");
    Node node9 = graphModel.factory().newNode("8");
    undirectedGraph.addNode(node1);
    undirectedGraph.addNode(node2);
    undirectedGraph.addNode(node3);
    undirectedGraph.addNode(node4);
    undirectedGraph.addNode(node5);
    undirectedGraph.addNode(node6);
    undirectedGraph.addNode(node7);
    undirectedGraph.addNode(node8);
    undirectedGraph.addNode(node9);
    Edge edge12 = graphModel.factory().newEdge(node1, node2, false);
    Edge edge23 = graphModel.factory().newEdge(node2, node3, false);
    Edge edge45 = graphModel.factory().newEdge(node4, node5, false);
    Edge edge56 = graphModel.factory().newEdge(node5, node6, false);
    Edge edge64 = graphModel.factory().newEdge(node6, node4, false);
    Edge edge75 = graphModel.factory().newEdge(node7, node5, false);
    undirectedGraph.addEdge(edge12);
    undirectedGraph.addEdge(edge23);
    undirectedGraph.addEdge(edge45);
    undirectedGraph.addEdge(edge56);
    undirectedGraph.addEdge(edge64);
    undirectedGraph.addEdge(edge75);
    UndirectedGraph graph = graphModel.getUndirectedGraph();
    ConnectedComponents c = new ConnectedComponents();
    HashMap<Node, Integer> indicies = c.createIndiciesMap(graph);
    LinkedList<LinkedList<Node>> components = c.computeWeeklyConnectedComponents(graph, indicies);
    int componentNumber3 = c.getComponentNumber(components, node3);
    int componentNumber4 = c.getComponentNumber(components, node4);
    int componentNumber7 = c.getComponentNumber(components, node7);
    int componentNumber8 = c.getComponentNumber(components, node8);
    assertEquals(components.size(), 4);
    assertEquals(componentNumber4, componentNumber7);
    assertNotEquals(componentNumber3, componentNumber8);
}

Example 49 with Node

use of org.gephi.graph.api.Node 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);
}

Example 50 with Node

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

the class GraphDistanceNGTest method testDirectedPathGraphDiameter.

@Test
public void testDirectedPathGraphDiameter() {
    GraphModel graphModel = GraphGenerator.generatePathDirectedGraph(4);
    GraphDistance d = new GraphDistance();
    d.initializeStartValues();
    UndirectedGraph undirectedGraph = graphModel.getUndirectedGraph();
    HashMap<Node, Integer> indicies = d.createIndiciesMap(undirectedGraph);
    d.calculateDistanceMetrics(graphModel.getGraph(), indicies, true, false);
    double diameter = d.getDiameter();
    assertEquals(diameter, 3.0, TOLERANCE);
}