TreeMeasurer (JGraphT : a free Java graph library)

java.lang.Object
- org.jgrapht.alg.shortestpath.TreeMeasurer<V,E>

Type Parameters:

V - the graph vertex type

E - the graph edge type
```
public class TreeMeasurer<V,E>
extends Object
```
Algorithm class which computes a number of distance related metrics for trees.

Author:

Alexandru Valeanu

- Constructor Summary
  
  Constructors
  Constructor Description
  
  TreeMeasurer(Graph<V,E> graph)
  Constructs a new instance of TreeMeasurer.
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  Set<V> getGraphCenter()
  Compute the graph center.
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - TreeMeasurer
```
public TreeMeasurer(Graph<V,E> graph)
```
    Constructs a new instance of TreeMeasurer.
    
    Parameters:
    
    graph - input graph
    
    Throws:
    
    NullPointerException - if graph is null
- Method Detail
  - getGraphCenter
```
public Set<V> getGraphCenter()
```
    Compute the graph center. The center of a graph is the set of vertices of graph eccentricity equal to the graph radius.
    Note: The input graph must be undirected.
    
    Returns:
    
    the graph center
    
    Throws:
    
    IllegalArgumentException - if graph is not undirected