Module org.jgrapht.core
Package org.jgrapht.generate

Class ScaleFreeGraphGenerator<V,E>

java.lang.Object
org.jgrapht.generate.ScaleFreeGraphGenerator<V,E>
Type Parameters:
V - the graph vertex type
E - the graph edge type
All Implemented Interfaces:
GraphGenerator<V,E,V>
public class ScaleFreeGraphGenerator<V,E> extends Object implements GraphGenerator<V,E,V>
Generates directed or undirected scale-free network of any size. Scale-free network is a connected graph, where degrees of vertices are distributed in unusual way. There are many vertices with small degrees and only small amount of vertices with big degrees.
Author:
Ilya Razenshteyn

  • Constructor Details

    • ScaleFreeGraphGenerator

      public ScaleFreeGraphGenerator(int size)
      Constructor
      Parameters:
      size - number of vertices to be generated

    • ScaleFreeGraphGenerator

      public ScaleFreeGraphGenerator(int size, long seed)
      Constructor
      Parameters:
      size - number of vertices to be generated
      seed - initial seed for the random generator

    • ScaleFreeGraphGenerator

      public ScaleFreeGraphGenerator(int size, Random rng)
      Constructor
      Parameters:
      size - number of vertices to be generated
      rng - the random number generator

  • Method Details

    • generateGraph

      public void generateGraph(Graph<V,E> target, Map<String,V> resultMap)
      Generates scale-free network with size passed to the constructor.
      Specified by:
      generateGraph in interface GraphGenerator<V,E,V>
      Parameters:
      target - receives the generated edges and vertices; if this is non-empty on entry, the result will be a disconnected graph since generated elements will not be connected to existing elements
      resultMap - unused parameter, can be null