Stable Proposed Functions¶

Warning

Proposed functions for next mayor release.

They are not officially in the current release.
They will likely officially be part of the next mayor release:
- The functions make use of ANY-INTEGER and ANY-NUMERICAL
- Name might not change. (But still can)
- Signature might not change. (But still can)
- Functionality might not change. (But still can)
- pgTap tests have being done. But might need more.
- Documentation might need refinement.

As part of the Dijkstra - Family of functions

pgr_dijkstraCostMatrix - proposed Use pgr_dijkstra to calculate a cost matrix.
pgr_dijkstraVia - Proposed - Use pgr_dijkstra to make a route via vertices.

Families

aStar - Family of functions

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

Bidirectional A* - Family of functions

pgr_bdAstar - Bidirectional A* algorithm for obtaining paths.
pgr_bdAstarCost - Proposed - Bidirectional A* algorithm to calculate the cost of the paths.
pgr_bdAstarCostMatrix - proposed - 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 - Proposed - Bidirectional Dijkstra to calculate the cost of the shortest paths
pgr_bdDijkstraCostMatrix - proposed - Bidirectional Dijkstra algorithm to create a matrix of costs of the shortest paths.

Flow - Family of functions

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

withPoints - Family of functions

pgr_withPoints - Proposed - Route from/to points anywhere on the graph.
pgr_withPointsCost - Proposed - Costs of the shortest paths.
pgr_withPointsCostMatrix - proposed - Costs of the shortest paths.
pgr_withPointsKSP - Proposed - K shortest paths.
pgr_withPointsDD - Proposed - Driving distance.

categories

Cost - Category

Cost Matrix - Category

pgr_KSP - Driving Distance based on pgr_dijkstra
pgr_withPointsKSP - Proposed - Driving Distance based on pgr_dijkstra

Experimental Functions¶

Warning

Experimental functions

They are not officially of the current release.
They likely will not be officially be part of the next release:
- The functions might not make use of ANY-INTEGER and ANY-NUMERICAL
- Name might change.
- Signature might change.
- Functionality might change.
- pgTap tests might be missing.
- Might need c/c++ coding.
- May lack documentation.
- Documentation if any might need to be rewritten.
- Documentation examples might need to be automatically generated.
- Might need a lot of feedback from the comunity.
- Might depend on a proposed function of pgRouting
- Might depend on a deprecated function of pgRouting

Contraction - Family of functions - Reduce network size using contraction techniques

pgr_contractGraph - Experimental - Reduce network size using contraction techniques

Graph Analysis

pgr_labelGraph - Experimental - Analyze / label subgraphs within a network

Components - Family of functions - Analyze components within a graph

pgr_connectedComponents - Experimental - Return the connected components of an undirected graph
pgr_strongComponents - Experimental - Return the strongly connected components of a directed graph
pgr_biconnectedComponents - Experimental - Return the biconnected components of an undirected graph
pgr_articulationPoints - Experimental - Return the articulation points of an undirected graph
pgr_bridges - Experimental - Return the bridges of an undirected graph

VRP

Graph Transformation

pgr_lineGraph - Experimental

See Also¶

Indices and tables