pgRouting extends the PostGIS/PostgreSQL geospatial database to provide geospatial routing and other network analysis functionality.

This is the manual for pgRouting v3.0.0-alpha.

The pgRouting Manual is licensed under a Creative Commons Attribution-Share Alike 3.0 License. Feel free to use this material any way you like, but we ask that you attribute credit to the pgRouting Project and wherever possible, a link back to http://pgrouting.org. For other licenses used in pgRouting see the Licensing page.

Reference

pgr_version - Get pgRouting’s version information. pgr_full_version - Get pgRouting’s details of version.

- pgr_createTopology - to create a topology based on the geometry.
- pgr_createVerticesTable - to reconstruct the vertices table based on the source and target information.
- pgr_analyzeGraph - to analyze the edges and vertices of the edge table.
- pgr_analyzeOneWay - to analyze directionality of the edges.
- pgr_nodeNetwork -to create nodes to a not noded edge table.

All Pairs - Family of Functions

- pgr_floydWarshall - Floyd-Warshall’s Algorithm
- pgr_johnson- Johnson’s Algorithm

- pgr_aStar - A* algorithm for the shortest path.
- pgr_aStarCost - Get the aggregate cost of the shortest paths.
- pgr_aStarCostMatrix - Get the cost matrix of the shortest paths.

Bidirectional A* - Family of functions

- pgr_bdAstar - Bidirectional A* algorithm for obtaining paths.
- pgr_bdAstarCost - Bidirectional A* algorithm to calculate the cost of the paths.
- pgr_bdAstarCostMatrix - Bidirectional A* algorithm to calculate a cost matrix of paths.

Bidirectional Dijkstra - Family of functions

- pgr_bdDijkstra - Bidirectional Dijkstra algorithm for the shortest paths.
- pgr_bdDijkstraCost - Bidirectional Dijkstra to calculate the cost of the shortest paths
- pgr_bdDijkstraCostMatrix - Bidirectional Dijkstra algorithm to create a matrix of costs of the shortest paths.

Components - Family of functions

- pgr_connectedComponents - Connected components of an undirected graph.
- pgr_strongComponents - Strongly connected components of a directed graph.
- pgr_biconnectedComponents - Biconnected components of an undirected graph.
- pgr_articulationPoints - Articulation points of an undirected graph.
- pgr_bridges - Bridges of an undirected graph.

Contraction - Family of functions

Dijkstra - Family of functions

- pgr_dijkstra - Dijkstra’s algorithm for the shortest paths.
- pgr_dijkstraCost - Get the aggregate cost of the shortest paths.
- pgr_drivingDistance - Use pgr_dijkstra to calculate catchament information.
- pgr_KSP - Use Yen algorithm with pgr_dijkstra to get the K shortest paths.

- pgr_maxFlow - Only the Max flow calculation using Push and Relabel algorithm.
- pgr_boykovKolmogorov - Boykov and Kolmogorov with details of flow on edges.
- pgr_edmondsKarp - Edmonds and Karp algorithm with details of flow on edges.
- pgr_pushRelabel - Push and relabel algorithm with details of flow on edges.
- Applications
- pgr_edgeDisjointPaths - Calculates edge disjoint paths between two groups of vertices.
- pgr_maxCardinalityMatch - Calculates a maximum cardinality matching in a graph.

pgr_KSP - K-Shortest Path

pgr_trsp - Turn Restriction Shortest Path (TRSP) - Turn Restriction Shortest Path (TRSP)

- pgr_TSP - When input is given as matrix cell information.
- pgr_TSPeuclidean - When input are coordinates.

- pgr_drivingDistance - Driving Distance based on Dijkstra’s algorithm
- pgr_primDD - Driving Distance based on Prim’s algorithm
- pgr_kruskalDD - Driving Distance based on Kruskal’s algorithm
- Post pocessing
- pgr_alphaShape - Alpha shape computation

- pgRouting 3.0.0 Release Notes
- pgRouting 2.6.3 Release Notes
- pgRouting 2.6.2 Release Notes
- pgRouting 2.6.1 Release Notes
- pgRouting 2.6.0 Release Notes
- pgRouting 2.5.5 Release Notes
- pgRouting 2.5.4 Release Notes
- pgRouting 2.5.3 Release Notes
- pgRouting 2.5.2 Release Notes
- pgRouting 2.5.1 Release Notes
- pgRouting 2.5.0 Release Notes
- pgRouting 2.4.2 Release Notes
- pgRouting 2.4.1 Release Notes
- pgRouting 2.4.0 Release Notes
- pgRouting 2.3.2 Release Notes
- pgRouting 2.3.1 Release Notes
- pgRouting 2.3.0 Release Notes
- pgRouting 2.2.4 Release Notes
- pgRouting 2.2.3 Release Notes
- pgRouting 2.2.2 Release Notes
- pgRouting 2.2.1 Release Notes
- pgRouting 2.2.0 Release Notes
- pgRouting 2.1.0 Release Notes
- pgRouting 2.0.1 Release Notes
- pgRouting 2.0.0 Release Notes
- pgRouting 1.x Release Notes

Indices and tables