graph/test/degree_centrality.cpp

122 lines
3.1 KiB
C++

// (C) Copyright 2007-2009 Andrew Sutton
//
// Use, modification and distribution are subject to the
// Boost Software License, Version 1.0 (See accompanying file
// LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
#include <vector>
#include <boost/graph/undirected_graph.hpp>
#include <boost/graph/directed_graph.hpp>
#include <boost/graph/degree_centrality.hpp>
#include <boost/graph/exterior_property.hpp>
using namespace std;
using namespace boost;
// useful types
// number of vertices in the graph
static const unsigned N = 5;
template <typename Graph>
void build_graph(Graph& g,
vector<typename graph_traits<Graph>::vertex_descriptor>& v)
{
// add vertices
for(size_t i = 0; i < N; ++i) {
v[i] = add_vertex(g);
}
// add edges
add_edge(v[0], v[1], g);
add_edge(v[1], v[2], g);
add_edge(v[2], v[0], g);
add_edge(v[3], v[4], g);
add_edge(v[4], v[0], g);
}
template <typename Graph>
void test_undirected()
{
typedef typename graph_traits<Graph>::vertex_descriptor Vertex;
typedef exterior_vertex_property<Graph, unsigned> CentralityProperty;
typedef typename CentralityProperty::container_type CentralityContainer;
typedef typename CentralityProperty::map_type CentralityMap;
Graph g;
vector<Vertex> v(N);
build_graph(g, v);
CentralityContainer cents(num_vertices(g));
CentralityMap cm(cents, g);
all_degree_centralities(g, cm);
BOOST_ASSERT(cm[v[0]] == 3);
BOOST_ASSERT(cm[v[1]] == 2);
BOOST_ASSERT(cm[v[2]] == 2);
BOOST_ASSERT(cm[v[3]] == 1);
BOOST_ASSERT(cm[v[4]] == 2);
}
template <typename Graph>
void test_influence()
{
typedef typename graph_traits<Graph>::vertex_descriptor Vertex;
typedef exterior_vertex_property<Graph, unsigned> CentralityProperty;
typedef typename CentralityProperty::container_type CentralityContainer;
typedef typename CentralityProperty::map_type CentralityMap;
Graph g;
vector<Vertex> v(N);
build_graph(g, v);
CentralityContainer cents(num_vertices(g));
CentralityMap cm(cents, g);
all_influence_values(g, cm);
BOOST_ASSERT(cm[v[0]] == 1);
BOOST_ASSERT(cm[v[1]] == 1);
BOOST_ASSERT(cm[v[2]] == 1);
BOOST_ASSERT(cm[v[3]] == 1);
BOOST_ASSERT(cm[v[4]] == 1);
}
template <typename Graph>
void test_prestige()
{
typedef typename graph_traits<Graph>::vertex_descriptor Vertex;
typedef exterior_vertex_property<Graph, unsigned> CentralityProperty;
typedef typename CentralityProperty::container_type CentralityContainer;
typedef typename CentralityProperty::map_type CentralityMap;
Graph g;
vector<Vertex> v(N);
build_graph(g, v);
CentralityContainer cents(num_vertices(g));
CentralityMap cm(cents, g);
all_prestige_values(g, cm);
BOOST_ASSERT(cm[v[0]] == 2);
BOOST_ASSERT(cm[v[1]] == 1);
BOOST_ASSERT(cm[v[2]] == 1);
BOOST_ASSERT(cm[v[3]] == 0);
BOOST_ASSERT(cm[v[4]] == 1);
}
int
main(int, char *[])
{
typedef undirected_graph<> Graph;
typedef directed_graph<> Digraph;
test_undirected<Graph>();
test_influence<Digraph>();
test_prestige<Digraph>();
}