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Feb
1
comment Modifying an algorithm in pgRouting or creating a new routing algorithm [PostGIS using OSM Data]
You best contact the pgRouting developer mailing list to ask this question. There has been a lot of work recently to refactor the routing algorithms and results will be published as version 2.2. We're very happy to get pull requests through Github as well, if you make some improvements: pgrouting.org/support.html Look at the link to find the mailing list and Github repository. The chance to reach pgRouting developers here (except me) is rather low.
Jan
28
comment Problems using pgr_fromAtoB - postgresql error
The functioned is a stored procedure and the error may be misleading. It's not really clear to me, why this error happens, but looking at your table I can see that your geometry is "MULTILINESTRING", which is either not necessary, or if you really have multi-geometries, it's a problem. It's better to make sure, that your geometry is LINESTRING. Eventually that's the issue.
Jan
23
comment Unable to install pgrouting for postgres 9.3.5/postgis 2.1.7
Ubuntu 14.10 support has ended, see fridge.ubuntu.com/2015/07/03/… . Launchpad does not allow to build (upload) packages for unsupported releases, so pgRouting packages for 14.10 are not maintained anymore either.
Jan
20
revised Direction and Routing services in CartoDB API
this question doesn't ask about pgRouting
Jan
14
answered Select a subset of a PostGis table
Jan
5
comment osm2pgrouting fails silently when loading California (large) data
The 2.0 release of pgRouting uses pgr_createTopology() to create the topology. The 2.1 release uses OSM's "original" topology and does not run a pgRouting function, and it should not stop due to insufficient memory anymore. My guess is, that there is some data issue, that is not related to size. Have you tried a country larger than California?
Jan
5
comment Replicate routing behavior
pgRouting is an extension for PostgreSQL and adds additional functions for shortest path search. To learn how to use it, you may want to start with the workshop: workshop.pgrouting.org After that you should know about the terminology.
Jan
2
comment osm2pgrouting fails silently when loading California (large) data
Which version of osm2pgrouting do you use?
Dec
11
revised Is Sandy Springs, GA actually Atlanta, GA (ambiguous cities while geocoding)?
this has nothing to do with pgRouting
Dec
9
answered What is an undirected graph with cost and reverse cost?
Dec
7
comment GeoServer Sql view setup error?
Have you tried a query also directly with pgAdmin3 or the psql console?
Nov
22
answered Retrieving the data from PgRouting
Nov
18
comment PgRouting function to return the route geometry based on multiple stops(via)
If your function returns only route geometries for start and end, then there is eventually no route found. Have you tried it once with the workshop data (I assume you followed the pgRouting workshop).
Nov
12
answered Multiple queries in pgrouting (length as result)
Nov
2
answered How to aggregate pgr_dijkstra results by attribute?
Oct
13
comment pgr_dijkstra doesn't return when cost values are low
Are you sure, there is a path between your start and end point not selecting records with negative costs? Because negative costs will be treated as one-way street with no access in this direction.
Oct
6
comment pgr_dijkstra return values in lat/long
Your coordinate reference system needs to be lat/lon. This is the case if you have WGS84 for example.
Oct
6
answered pgr_dijkstra return values in lat/long
Oct
4
revised I import map from file osm.pbf using osm2po. Why the low speed function call pgr_dijkstra in database Postgresql?
make source code readable
Oct
4
answered I import map from file osm.pbf using osm2po. Why the low speed function call pgr_dijkstra in database Postgresql?