pgRouting extends the PostGIS / PostgreSQL geospatial database to provide geospatial routing functionality.

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21 views

Assign_vertex_id function does not exist

I would like to add unique start/end nodes for each feature in my road network. I ran across some posts referencing the pgrouting assign_vertex_id function, which appears to do exactly what I want, ...
3
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1answer
833 views

How to draw a simple bus network that works with pgRouting?

What I'm I doing wrong? I've created a new shape layer for lines, I've enabled snapping with 5 map units for that layer. When I draw a line between two of the stops I get a purple marker when I'm at ...
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2answers
1k views

How to find the best route through multiple points?

I am using postgreSQL, postGIS and pgrouting. Now I am really confused on how am I going to find the shortest path between multiple points. I know how to find it between two points through dijkstra ...
3
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2answers
468 views

How to install pgrouting from source on CentOS 6.3?

I'm running into a problem once I try [cmake_dir]/bin/cmake . I get these errors: Boost headers were found here: /usr/include Output directory for libraries is set to sh: ...
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1answer
117 views

Calculating from a location to another location (calculation must be on a line/road path)

I'm using QGIS. I'm new. I have a CSV file, with the source point (the_geom) and destination point (the_geom). I have a road network already imported into PostGIS with pgRouting, and I need to have ...
3
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1answer
1k views

How to use the pgRouting TSP function?

For more than two days I'm trying to make the TSP algorithm work in PostgreSQL/PostGIS. My problem seems to occur when I'm trying to take into account the road network for TSP algorithm. I know that ...
3
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1answer
524 views

How to route on a Shapefile?

We use shp.file in our VB6 to run tracking system. Now we want to convert it into the navigation system, which requires doing the route analysis on shp.file. The route is drawn in shp.file Usually, ...
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1answer
2k views

pgRouting for postgresql 9.0?

Is pgRouting 1.05 compatible with postgresql9.0 Win32? I am a newbie, and I have spent three days trying to build it for postgresql9.0, but without success in the end. Thanks. Yes, you are right. I ...
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2answers
756 views

PostGIS + pgRouting: Adding dummy links to a road network and performing routing analysis

I'm a beginner when it comes to postgis and pgrouting development. For a project I'm working on and a bit of the algorithm: I have a polygon layer that represents zones I have a line layer that ...
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2answers
99 views

Can pgr_dijkstra use a boolean column for routing?

I want to use Dijkstra algorithm. I would like to have the algorithm find a route based on a boolean traffic column, using only roads where the boolean column value is true. The code below does not ...
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218 views

If do not want to use pgRouting then what?

Good evening fellow GISers, I am interested in creating an online routing application. So supposing I have all the data I want into a postGIS database and loaded onto GeoServer and I am willing to ...
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2k views

Problem with running PostgreSQL 9.3 after installing pgRouting

I have PostgreSQL 9.3 installed on the server. It worked just fine. I also had a webservice which connected to a database. That also worked like a charm. Later, I decided to install and use pgRouting. ...
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1answer
321 views

nearest facility with pgrouting

I have a postgres table of students with lat, lon and geom, , and a table of schools with the same, and a table of roads that has been converted to nodes. I'm trying to find the driving distance to ...
3
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2answers
342 views

adding geometries to a source, target table for multiple rows in pgrouting

I am having an issue trying to perform the pgr_dijkstra algorithm and getting back a line in my table for multiple rows. I have a table that has a columns of source, target node id's but I cannot ...
3
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2answers
115 views

How to deal with Roundabouts in PgRouting

Can anybody guide me to to deal with roundabouts in pgrouting?? I have some roundabouts in my road network and when i try to make route from one point to another, it gives me wrong direction where it ...
3
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1answer
276 views

How can I move along a line (or path)?

Given a line (street, railroad, river...) I want to simulate a moviment inside this line. Example: See this picture: Say I'm in "Nagqu" and want to move to "Kunlunqial". In a time (t=0) I'm in ...
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1answer
271 views

Get Multiple Shortest Path using PgRouting in One Query

I am trying to get multiple shortest path using A* Algorithm available in PgRouting. I referred Solution given by UnderDark ( Link of the Stakoverflow Post ) . But it is not giving me proper Output. ...
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3answers
504 views

How Does Directed and has_reverse_cost Arguments when set to [true, false] and [true, true] Affect Routing?

What will be the difference on the routing behaviour when I try to play with the directed and has_reverse_cost arguments on all the three routing algorithms? Example: the following SQL queries give ...
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2answers
429 views

Reinventing the wheel: Public Transit System

I'm building a public transit service in South Africa, and I initially started the project on PHP and MySQL. I've managed to get far with the simple stack, with: Routing algorithm in PHP Data ...
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1answer
108 views

How to check that a point is outside of a route?

I am newbie in PostGIS and also GIS particularly. I need to check that a vehicle is outside of a route. This route has been defined in advance, and of course it stores in a table: RROUTEDETAIL. This ...
3
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1answer
568 views

How to create a QGIS road style for OSM data?

I am trying to use qgis to visualize the shortest path algorithm's result. I managed to import the osm map into qgis But I think it looks kind of different. I was referring to this link and she ...
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2answers
650 views

How can I identify oneways at pgrouting

I have set pgrouting and inserted my data with osm2pgrouting . I would like to know how can I find out which way is one way. Also I read that if I assign the reverse_cost of an one way to -1 only ...
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1answer
4k views

What is the difference between Astar and Dijkstra algorithms in Pgrouting?

I would like to know what is the difference between A* algorithm and Dijkstra at finding the shortest path at pgrouting. Which one is faster ,has better performance and returns better results. Also ...
3
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1answer
335 views

How to get point file in 5km Buffer of route generated in pgrouting

I am using pgrouting to get shortest route. Now i want to get point that comes in buffer of 5km along router.Point is other shape file. route is using road shape so any one give me idea for same.
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2answers
857 views

How to use pgRouting's dijkstra_sp_delta_directed with WHERE clause?

Right now I am using PgRouting for vehicle routing and I have problem with Dijkstra shortest path. My query is: SELECT * FROM shortest_path('SELECT gid AS id, source::int4 AS source, ...
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1answer
400 views

Is there an open source directions webclient for pgRouting like the directions API from Google?

I am looking for an open source webclient with (Google) directions functionality (like draggable lines to create extra waypoints) based on an pgrouting database (with an osm2pgrouting topology). I ...
3
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1answer
457 views

dijkstra_sp_directed() not returning valid paths

I think I have found a major issue with pgrouting. I hope I am just doing something wrong due to my inexperience. I am plotting the following query using OpenLayers. select transform(the_geom, ...
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21 views

Create an optimised path between nodes avoiding polygons entities

I have nodes as a shapefile representing seaports. I have the linear cost of shipping for every pair of seaport (specific shipping cost to go from one node to another node). I want to find a way to ...
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35 views

How to quickly get coverage of multiple services at once using pgrouting driving distance

I'm trying to get some useful information out of openstreetmap data to choose where to rent an apartment in my city. I used osm2pgrouting and osm2pgsql to get OSM data into my postgis database. So far ...
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85 views

A* pgRouting issue with x1,y1 and x2,y2 values

I am trying to use the A* algorithm in a topology I have made in PostgreSQL. I can fill the x1,y1 and x2,y2 the latitude/longitude, but I have read that the same version has problems with ...
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1answer
199 views

Using OpenStreetMap for simulation of commuter routes

I'm seeking some advice on how to build a simulation based on OpenStreetMap Data for my masterthesis. My knowledge of spatial data is very limited, since I come from another field of science, namely ...
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1answer
291 views

pgRouting Dijkstra returns wrong [duplicate]

I've just observed something quite odd. I have created a table with data for routing, and this table contains data for a graph over six different hour conditions. So when performing shortest_path, I ...
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98 views

How to PGRoute from OpenLayers via PostGIS/PostgreSQL [duplicate]

I need to route a shortest distance for a map which I have loaded from a PostgreSQL by means of JSON file. I can project the map in my browser and I can identify the linestrings. For a particular ...
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397 views

Is there a way to start the route on pgrouting from a coordinate that is not a node?

After execute all steps from this pgRouting tutorial, now I have a map that creates and displays routes, but as the routing methods rely on parameters representing vertex Ids that was created using ...
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156 views

Create a consistent topology using pgrouting

I'm developing an application that needs routing information for certain cities. First, I downloaded a openstreetmap datafile (*.osm) and then I imported it into a postgreSQL database using ...
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344 views

Shortest distance from pgrouting with cost not being length: optimal solution

I'm using pgrouting shortest_path_astar with a complicated cost function. It gives back the edges, vertices and costs. I would like to get the total distance of this shortest path (i.e., the sum of ...
2
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3answers
471 views

Is it possible to make a routable graph from Polygons?

I would like to know if it is possible to make a graph with pgrouting 1.05 on polygons. What I mean is that I have to make a graph on a database without roads but with polygon geometry. I would like ...
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2answers
152 views

Does PostGIS/pgrouting actually come with street info?

I've been looking at getting a new GIS setup going, involving QGIS/PostgreSQL/PostGIS/pgrouting, and so far it has been relatively easy. One thing I want to be able to do is to work out travel times, ...
2
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2answers
313 views

QGIS Contour plugin: Creating complex isolines leads to isolated areas

I use the contour plugin (v1.1) within QGIS 2.4 to create contour lines. I have streets with different travel costs. I observe problems for streets with low travel costs if they are surrounded by ...
2
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2answers
4k views

Calculating many shortest paths with pgRouting

I 145013 Danish addresses, and 10 big cities in Denmark as points in QGIS. Furthermore, I have four vector layers that connect all the points. They are small roads, main roads, freeways and ferry ...
2
votes
1answer
399 views

PostgreSQL / PgRouting syntax error

My question is about Postgres/PgRouting syntax, when I wrote query like this: SELECT * FROM shortest_path('SELECT gid AS id, source::int4 AS source, target::int4 AS target, ...
2
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2answers
109 views

I import map from file osm.pbf using osm2po. Why the low speed function call pgr_dijkstra in database Postgresql?

Good day! I import map from file russia.osm.pbf using osm2po. Why the low speed function call pgr_dijkstra in database Postgresql (>2 minute)? My steps: java -Xmx6g -jar osm2po-core-5.0.0-signed.jar ...
2
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2answers
253 views

How to create more networking osm

Using localhost page generated by osm2po roteamente noticed that the link is made to link even disabling snapping. Logically thought to create more nodes in the network, but how can I do this ...
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2answers
373 views

Keeping up to date with OSM changes in pgRouting

I'm working on a routing application using OSM and pgRouting. I'm only interested in a subset of data, mostly North America (performance was difficult for large amounts of data, so don't want to use ...
2
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1answer
2k views

openlayers 3 pgrouting: unable to get lat/long by clicking on the map

I followed all the steps from the pgrouting workshop using pg routing 2.0 and geoserver 2.5 from this site http://workshop.pgrouting.org/ . I can generate an itinerary in QGis by requesting Postgres ...
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2answers
924 views

Doubts about how pgRouting topology is built and how flexible it is

I'm learning pgRouting, to validate if it can be used in a project. I have several doubts. Mostly related with how could I "fill the gap" between the "bricks" it provides and the real world ...
2
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2answers
393 views

Why does Driving distance of pgRouting return disconnected results?

I am trying the driving distance function of pgRouting 2.0 beta, with an extract of OSM data. The problem i have is illustrated on the following image : On this picture i try to get all the ways ...
2
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1answer
1k views

pgRouting: unable to execute routing_core.sql

I'm unable to execute the routing_core.sql, receiving following error. I'm using pgAdmin III, Windows 7, PostgreSQL 9.1, PostGIS 2.0. ERROR: could not load library "C:/Program ...
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4answers
674 views

Any pgrouting enabled hosting providers?

I am really interested if any of you know about a hosting provider that offers postgis & pgrouting pre-installed? If not, can I just go ahead and purchase a linode hosting account and do all the ...
2
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1answer
38 views

Select a subset of a PostGis table

I'm using a big table imported by a *.shp file of the city of San Diego. When I run pgr_dijkstra it takes more or less 5000ms, even for small distances. I was thinking, in order to improve ...