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/* -*- mode: C -*- */
/*
IGraph library.
Copyright (C) 2009-2021 The igraph development team
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA
*/
#ifndef IGRAPH_PATHS_H
#define IGRAPH_PATHS_H
#include "igraph_constants.h"
#include "igraph_datatype.h"
#include "igraph_decls.h"
#include "igraph_error.h"
#include "igraph_iterators.h"
#include "igraph_matrix.h"
#include "igraph_types.h"
#include "igraph_vector.h"
#include "igraph_vector_list.h"
__BEGIN_DECLS
IGRAPH_EXPORT igraph_error_t igraph_diameter(const igraph_t *graph, igraph_real_t *res,
igraph_integer_t *from, igraph_integer_t *to,
igraph_vector_int_t *vertex_path, igraph_vector_int_t *edge_path,
igraph_bool_t directed, igraph_bool_t unconn);
IGRAPH_EXPORT igraph_error_t igraph_diameter_dijkstra(const igraph_t *graph,
const igraph_vector_t *weights,
igraph_real_t *res,
igraph_integer_t *from,
igraph_integer_t *to,
igraph_vector_int_t *vertex_path,
igraph_vector_int_t *edge_path,
igraph_bool_t directed,
igraph_bool_t unconn);
IGRAPH_EXPORT igraph_error_t igraph_distances_cutoff(const igraph_t *graph, igraph_matrix_t *res,
const igraph_vs_t from, const igraph_vs_t to,
igraph_neimode_t mode, igraph_real_t cutoff);
IGRAPH_EXPORT igraph_error_t igraph_distances(const igraph_t *graph, igraph_matrix_t *res,
const igraph_vs_t from, const igraph_vs_t to,
igraph_neimode_t mode);
IGRAPH_EXPORT igraph_error_t igraph_distances_bellman_ford(const igraph_t *graph,
igraph_matrix_t *res,
const igraph_vs_t from,
const igraph_vs_t to,
const igraph_vector_t *weights,
igraph_neimode_t mode);
IGRAPH_EXPORT igraph_error_t igraph_distances_dijkstra_cutoff(const igraph_t *graph,
igraph_matrix_t *res,
const igraph_vs_t from,
const igraph_vs_t to,
const igraph_vector_t *weights,
igraph_neimode_t mode,
igraph_real_t cutoff);
IGRAPH_EXPORT igraph_error_t igraph_distances_dijkstra(const igraph_t *graph,
igraph_matrix_t *res,
const igraph_vs_t from,
const igraph_vs_t to,
const igraph_vector_t *weights,
igraph_neimode_t mode);
IGRAPH_EXPORT igraph_error_t igraph_distances_johnson(const igraph_t *graph,
igraph_matrix_t *res,
const igraph_vs_t from,
const igraph_vs_t to,
const igraph_vector_t *weights);
IGRAPH_EXPORT igraph_error_t igraph_distances_floyd_warshall(const igraph_t *graph,
igraph_matrix_t *res,
const igraph_vector_t *weights,
igraph_neimode_t mode);
IGRAPH_EXPORT IGRAPH_DEPRECATED igraph_error_t igraph_shortest_paths(const igraph_t *graph, igraph_matrix_t *res,
const igraph_vs_t from, const igraph_vs_t to,
igraph_neimode_t mode);
IGRAPH_EXPORT IGRAPH_DEPRECATED igraph_error_t igraph_shortest_paths_bellman_ford(const igraph_t *graph,
igraph_matrix_t *res,
const igraph_vs_t from,
const igraph_vs_t to,
const igraph_vector_t *weights,
igraph_neimode_t mode);
IGRAPH_EXPORT IGRAPH_DEPRECATED igraph_error_t igraph_shortest_paths_dijkstra(const igraph_t *graph,
igraph_matrix_t *res,
const igraph_vs_t from,
const igraph_vs_t to,
const igraph_vector_t *weights,
igraph_neimode_t mode);
IGRAPH_EXPORT IGRAPH_DEPRECATED igraph_error_t igraph_shortest_paths_johnson(const igraph_t *graph,
igraph_matrix_t *res,
const igraph_vs_t from,
const igraph_vs_t to,
const igraph_vector_t *weights);
IGRAPH_EXPORT igraph_error_t igraph_get_shortest_paths(const igraph_t *graph,
igraph_vector_int_list_t *vertices,
igraph_vector_int_list_t *edges,
igraph_integer_t from, const igraph_vs_t to,
igraph_neimode_t mode,
igraph_vector_int_t *parents,
igraph_vector_int_t *inbound_edges);
IGRAPH_EXPORT igraph_error_t igraph_get_shortest_paths_bellman_ford(const igraph_t *graph,
igraph_vector_int_list_t *vertices,
igraph_vector_int_list_t *edges,
igraph_integer_t from,
igraph_vs_t to,
const igraph_vector_t *weights,
igraph_neimode_t mode,
igraph_vector_int_t *parents,
igraph_vector_int_t *inbound_edges);
IGRAPH_EXPORT igraph_error_t igraph_get_shortest_paths_dijkstra(const igraph_t *graph,
igraph_vector_int_list_t *vertices,
igraph_vector_int_list_t *edges,
igraph_integer_t from,
igraph_vs_t to,
const igraph_vector_t *weights,
igraph_neimode_t mode,
igraph_vector_int_t *parents,
igraph_vector_int_t *inbound_edges);
IGRAPH_EXPORT igraph_error_t igraph_get_shortest_path(const igraph_t *graph,
igraph_vector_int_t *vertices,
igraph_vector_int_t *edges,
igraph_integer_t from,
igraph_integer_t to,
igraph_neimode_t mode);
IGRAPH_EXPORT igraph_error_t igraph_get_shortest_path_bellman_ford(const igraph_t *graph,
igraph_vector_int_t *vertices,
igraph_vector_int_t *edges,
igraph_integer_t from,
igraph_integer_t to,
const igraph_vector_t *weights,
igraph_neimode_t mode);
IGRAPH_EXPORT igraph_error_t igraph_get_shortest_path_dijkstra(const igraph_t *graph,
igraph_vector_int_t *vertices,
igraph_vector_int_t *edges,
igraph_integer_t from,
igraph_integer_t to,
const igraph_vector_t *weights,
igraph_neimode_t mode);
IGRAPH_EXPORT igraph_error_t igraph_get_all_shortest_paths(const igraph_t *graph,
igraph_vector_int_list_t *vertices,
igraph_vector_int_list_t *edges,
igraph_vector_int_t *nrgeo,
igraph_integer_t from, const igraph_vs_t to,
igraph_neimode_t mode);
IGRAPH_EXPORT igraph_error_t igraph_get_all_shortest_paths_dijkstra(const igraph_t *graph,
igraph_vector_int_list_t *vertices,
igraph_vector_int_list_t *edges,
igraph_vector_int_t *nrgeo,
igraph_integer_t from, igraph_vs_t to,
const igraph_vector_t *weights,
igraph_neimode_t mode);
IGRAPH_EXPORT igraph_error_t igraph_average_path_length(const igraph_t *graph,
igraph_real_t *res, igraph_real_t *unconn_pairs,
igraph_bool_t directed, igraph_bool_t unconn);
IGRAPH_EXPORT igraph_error_t igraph_average_path_length_dijkstra(const igraph_t *graph,
igraph_real_t *res, igraph_real_t *unconn_pairs,
const igraph_vector_t *weights,
igraph_bool_t directed, igraph_bool_t unconn);
IGRAPH_EXPORT igraph_error_t igraph_path_length_hist(const igraph_t *graph, igraph_vector_t *res,
igraph_real_t *unconnected, igraph_bool_t directed);
IGRAPH_EXPORT igraph_error_t igraph_global_efficiency(const igraph_t *graph, igraph_real_t *res,
const igraph_vector_t *weights,
igraph_bool_t directed);
IGRAPH_EXPORT igraph_error_t igraph_local_efficiency(const igraph_t *graph, igraph_vector_t *res,
const igraph_vs_t vids,
const igraph_vector_t *weights,
igraph_bool_t directed, igraph_neimode_t mode);
IGRAPH_EXPORT igraph_error_t igraph_average_local_efficiency(const igraph_t *graph, igraph_real_t *res,
const igraph_vector_t *weights,
igraph_bool_t directed, igraph_neimode_t mode);
IGRAPH_EXPORT igraph_error_t igraph_eccentricity(const igraph_t *graph,
igraph_vector_t *res,
igraph_vs_t vids,
igraph_neimode_t mode);
IGRAPH_EXPORT igraph_error_t igraph_eccentricity_dijkstra(const igraph_t *graph,
const igraph_vector_t *weights,
igraph_vector_t *res,
igraph_vs_t vids,
igraph_neimode_t mode);
IGRAPH_EXPORT igraph_error_t igraph_radius(const igraph_t *graph, igraph_real_t *radius,
igraph_neimode_t mode);
IGRAPH_EXPORT igraph_error_t igraph_graph_center(const igraph_t *graph,
igraph_vector_int_t *res,
igraph_neimode_t mode);
IGRAPH_EXPORT igraph_error_t igraph_pseudo_diameter(const igraph_t *graph,
igraph_real_t *diameter,
igraph_integer_t vid_start,
igraph_integer_t *from,
igraph_integer_t *to,
igraph_bool_t directed,
igraph_bool_t unconn);
IGRAPH_EXPORT igraph_error_t igraph_pseudo_diameter_dijkstra(const igraph_t *graph,
const igraph_vector_t *weights,
igraph_real_t *diameter,
igraph_integer_t vid_start,
igraph_integer_t *from,
igraph_integer_t *to,
igraph_bool_t directed,
igraph_bool_t unconn);
IGRAPH_EXPORT igraph_error_t igraph_get_all_simple_paths(const igraph_t *graph,
igraph_vector_int_t *res,
igraph_integer_t from,
const igraph_vs_t to,
igraph_integer_t cutoff,
igraph_neimode_t mode);
IGRAPH_EXPORT igraph_error_t igraph_random_walk(const igraph_t *graph,
const igraph_vector_t *weights,
igraph_vector_int_t *vertices,
igraph_vector_int_t *edges,
igraph_integer_t start,
igraph_neimode_t mode,
igraph_integer_t steps,
igraph_random_walk_stuck_t stuck);
IGRAPH_EXPORT igraph_error_t igraph_get_k_shortest_paths(const igraph_t *graph,
const igraph_vector_t *weights,
igraph_vector_int_list_t *vertex_paths,
igraph_vector_int_list_t *edge_paths,
igraph_integer_t k,
igraph_integer_t from,
igraph_integer_t to,
igraph_neimode_t mode);
IGRAPH_EXPORT igraph_error_t igraph_spanner(const igraph_t *graph,
igraph_vector_int_t *spanner,
igraph_real_t stretch,
const igraph_vector_t *weights);
IGRAPH_EXPORT igraph_error_t igraph_get_widest_paths(const igraph_t *graph,
igraph_vector_int_list_t *vertices,
igraph_vector_int_list_t *edges,
igraph_integer_t from,
igraph_vs_t to,
const igraph_vector_t *weights,
igraph_neimode_t mode,
igraph_vector_int_t *parents,
igraph_vector_int_t *inbound_edges);
IGRAPH_EXPORT igraph_error_t igraph_get_widest_path(const igraph_t *graph,
igraph_vector_int_t *vertices,
igraph_vector_int_t *edges,
igraph_integer_t from,
igraph_integer_t to,
const igraph_vector_t *weights,
igraph_neimode_t mode);
IGRAPH_EXPORT igraph_error_t igraph_widest_path_widths_floyd_warshall(const igraph_t *graph,
igraph_matrix_t *res,
const igraph_vs_t from,
const igraph_vs_t to,
const igraph_vector_t *weights,
igraph_neimode_t mode);
IGRAPH_EXPORT igraph_error_t igraph_widest_path_widths_dijkstra(const igraph_t *graph,
igraph_matrix_t *res,
const igraph_vs_t from,
const igraph_vs_t to,
const igraph_vector_t *weights,
igraph_neimode_t mode);
IGRAPH_EXPORT igraph_error_t igraph_voronoi(const igraph_t *graph,
igraph_vector_int_t *membership,
igraph_vector_t *distances,
const igraph_vector_int_t *generators,
const igraph_vector_t *weights,
igraph_neimode_t mode,
igraph_voronoi_tiebreaker_t tiebreaker);
IGRAPH_EXPORT igraph_error_t igraph_expand_path_to_pairs(igraph_vector_int_t *path);
IGRAPH_EXPORT igraph_error_t igraph_vertex_path_from_edge_path(
const igraph_t *graph, igraph_integer_t start,
const igraph_vector_int_t *edge_path, igraph_vector_int_t *vertex_path,
igraph_neimode_t mode
);
/* Deprecated functions: */
IGRAPH_EXPORT IGRAPH_DEPRECATED igraph_error_t igraph_random_edge_walk(const igraph_t *graph,
const igraph_vector_t *weights,
igraph_vector_int_t *edgewalk,
igraph_integer_t start,
igraph_neimode_t mode,
igraph_integer_t steps,
igraph_random_walk_stuck_t stuck);
__END_DECLS
#endif
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