org.jgrapht.experimental
Class UniformRandomGraphGenerator

java.lang.Object
  extended by org.jgrapht.experimental.UniformRandomGraphGenerator
All Implemented Interfaces:
GraphGenerator

public class UniformRandomGraphGenerator
extends Object
implements GraphGenerator

UniformRandomGraphGenerator generates a uniform random graph of any size. A uniform random graph contains edges chosen independently uniformly at random from the set of all possible edges.

Since:
Sep 13, 2004
Author:
Michael Behrisch

Constructor Summary
UniformRandomGraphGenerator(int numVertices, int numEdges)
          Construct a new UniformRandomGraphGenerator.
 
Method Summary
 void generateGraph(Graph target, VertexFactory vertexFactory, Map resultMap)
          Generate a graph structure.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

UniformRandomGraphGenerator

public UniformRandomGraphGenerator(int numVertices,
                                   int numEdges)
Construct a new UniformRandomGraphGenerator.

Parameters:
numVertices - number of vertices to be generated
numEdges - number of edges to be generated
Throws:
IllegalArgumentException
Method Detail

generateGraph

public void generateGraph(Graph target,
                          VertexFactory vertexFactory,
                          Map resultMap)
Description copied from interface: GraphGenerator
Generate a graph structure. The topology of the generated graph is dependent on the implementation. For graphs in which not all vertices share the same automorphism equivalence class, the generator may produce a labeling indicating the roles played by generated elements. This is the purpose of the resultMap parameter. For example, a generator for a wheel graph would designate a hub vertex. Role names used as keys in resultMap should be declared as public static final Strings by implementation classes.

Specified by:
generateGraph in interface GraphGenerator
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
vertexFactory - called to produce new vertices
resultMap - if non-null, receives implementation-specific mappings from String roles to graph elements (or collections of graph elements)
See Also:
GraphGenerator.generateGraph(org.jgrapht.Graph, org.jgrapht.VertexFactory, java.util.Map)


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