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

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How to deal with direction in pgr_ksp (K shortest path)?

I am working on a android app for navigation with PostGIS and pgrouting. I have implemented pgr_dijkstra and its working fine. I am not considering direction in routing at this point and just want ...
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48 views

qGIS' Database Manager “Load as New Layer” Option Not Working

I'm trying to visualize some of my database queries on qGIS. I run a valid SQL query which returns a subset of my table that should be easily loaded as a layer. I then check "Load as new layer," ...
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2answers
143 views

pgr_dijkstra working but pgr_ksp but returning anything for the same params

The following returns a route as expected. SELECT seq, id1 AS node, id2 AS edge, cost, b.the_geom as the_geom FROM pgr_dijkstra(' SELECT gid AS id, source::integer, target::integer, ...
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2answers
63 views

Can 'Source' and 'Target' in the roads table for routing be duplicate?

I am using pgr_ksp for finding multiple paths for single source and destination. I am wondering if 'source' and 'target' in a roads table are unique or not. because when i am doing routing on my road ...
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1answer
68 views

ST_Union to merge tables containing lines?

I have to build a street network with Postgis that will be used with pgrouting. I have two tables: 1) the_network (182 lines): is a MULTILINESTRING table. Having columns road_name (varchar) / ...
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1answer
60 views

PGR_CreateTopology maintain Source and Target ID's

Is there a way to set the 'source' and 'target' manually and not have it overridden in PGR_CreateTopology()? I have a predefined node ID's (INODE, JNODE) in my table which is the same to a other ...
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1answer
76 views

Wrong order to the path

I have a query which i use to find a route between two points . Even though the route is displayed good on the map the order i get from pgrouting is wrong the query is this one SELECT rt.gid, ...
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1answer
239 views

pgrouting shortest path result in wrong order

I am using the Dijkstra shortest path algorithm to plot a route between two points using the latest version of pgrouting in postgresql 9.1 with postGIS 2.0.1. I am able to get a correct result ...
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1answer
116 views

Enabling driving distance in Pgrouting

I would like to enable pgr_drivingDistance function fo Pgrouting. I followed this manual: http://pgrouting.org/docs/1.x/install.html, but I can't execute the last step: psql -U postgres -f ...
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2answers
323 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
35 views

(Pgrouting) Finding the best path within some maximal length

Is it possible to find the best path (where cost is not length) with the length limit? For example, find the best path that is shorter than 10km? I currently use pgr_astar from Pgrouting to find the ...
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1answer
60 views

How to know why a pgRouting function returns “FAIL”?

I am getting a "FAIL" message back when executing pgr_createTopology on a particular table, but the reason is not obvious. Is there any way to know precisely why the function is failing? Perhaps some ...
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3answers
2k views

How to emulate Google Maps driving directions using pgRouting?

Would like to emulate google maps' driving directions functionality but use pgRouting instead. google's data over the project area & scale is quite a bit off so we want to use our own transport ...
0
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1answer
24 views

pgrouting crashes and restarts the postgresql server when searching for endpoints in 2 disjoints graphs

I have >apt-show-versions postgresql-9.1-pgrouting postgresql-9.1-pgrouting/precise uptodate 2.0.0-release-ppa1~precise2 Whenever I do a search ...
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42 views

Problem running the pgr_trsp algorithm from pgrouting

I was studying the pgRouting Documentation 2.0. I was trying to run the pgr_trsp algorithm as shown in the tutorial: SELECT seq, id1 AS node, id2 AS edge, cost FROM pgr_trsp('SELECT id, source, ...
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136 views

travel survey multi stop routing problem

I have a travel diary survey dataset that I am attempting to transform into more useful information. Currently, the data comes in the format of: Survey# , PlaceVisited#, TravelMode, TripPurpose, ...
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1answer
122 views

Multi-modal public transport Routing using pgrouting or opentripplanner

I need multi-modal public transport routing for my iPhone app and also to solve a TSP problem. I have been researching and I am unable to make a decision whether I should go with pgrouting or ...
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125 views

create minimal spanning tree using table of distances between nodes rather than TSP

I am working on a transportation (linear programming) problem. Each potential solution also requires checking the distance of approx 20,000 routes with 5 to 15 nodes per route. Calculating the ...
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106 views

Some help installing pgrouting_dd on mac os x

I hope someone may be able to help me but i've been grapling for hours trying to install pgrouting with Driving Time to no success. I have been able to build pg routing no problem. However if i ...
3
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0answers
268 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 ...
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68 views

pgrouting shortestpathfromAtoB multiple pairs

I've got to solve a shortest path problem between multiple location pairs. E.g.: A to B C to D E to F etc. These pairs are stored in a table routing_basis like hkey; A; a.lat; a.lon; B; b.lat; b.lon ...
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2answers
165 views

Unable to implement pgrouting(plugin) pgr_astar routing algorithm (shortest path) [duplicate]

I have been working on a project for indoor navigation. I made the floorplan of the building and road-map for routing purposes as shp files (using JOSM, making GeoJSON and then converting to shp file ...
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1answer
122 views

pgrouting unexpected output

Thats my ways.shp file. I loaded this to PostgreSQL DB using PostGIS shape file loader. I ran pgr_anlayzeGraph() on it and found it had a lot of isolated segments. Next I ran pgr_nodeNetwork() to ...
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1answer
50 views

How to add Routing Table Query-Result on pgrouting?

I've followed the pgrouting latest workshop http://workshop.pgrouting.org. I wanted to know how to add the routing table query-result into my webpage directly after the route showed up? regards
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3answers
173 views

What is gid in OpenStreetMap data model?

I'm using an old code written by an ex-fellow and I wonder what is GID in OSM? The gid is basically used everywhere. The project uses PostGIS and PgRouting. Any pointers to that? I know this is a ...
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1answer
68 views

Migrating to Pgrouting pgr_dijkstra?

I have a system that uses shortest_path function pgrouting 1.x. At the moment, I want to migrate to pgrouting 2. And I assume the equivalent function to shortest_path is pgr_dijkstra. (Correct?) When ...
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123 views

how to add polylines(routes from public transport) on postgresql(pgrouting) with GUI

After searching a several long time... i decide to ask here for help, im currently using ubuntu 12.04(because of compatibility) with postgresql 9.1, postgis2, pgrouting2 and qgis2.2 i need ...
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2answers
585 views

Does pgRouting support turn-by-turn routing? [duplicate]

I have route list as result of pgRouting with street names. How to get messages "Turn left", "Go along" etc ... Can pgRouting do this or I need some other source and which?
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38 views

problems using GRASS v.net and v.net.allpairs

I am using GRASS 6.4.3, and I am trying to use it to do network analysis. I have a line shapefile and a point shapefile, and here is my code(I take v.net.allpairs as my reference): v.net tc_bf25 ...
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21 views

pgrouting - possible to find route through points rather than links? [duplicate]

Probably a daft question, but... I've been looking at using pgrouting to analyse paths between start/end points, but this analysis seems only to find routes through links (edges). Is there any way ...
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36 views

display route from database(postgresql) on

For first part: Link i have postgresql9.1,postgis2,pgrouting2 and qgis2.2 this is the second part of what i need to do: Search in a database (postgresql with pgrouting) for a line from public ...
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84 views

Change The OpenLayers 3 script into openlayers 2.13

Hi all I want to change the code from pgrouting latest workshop which is used the Openlayers 3 beta to Openlayers 2.13 The code is in here http://workshop.pgrouting.org/chapters/ol3_client.html I ...
3
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2answers
1k views

How to get started with pgRouting and OSM?

I have followed these instructions to install postgresql and pgrouting on our ubuntu server: ...
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10 views

Prepare OSM file for PGROUTING use [duplicate]

Well I am new in the GIS World :p well I have a webGIS to realise and I want use OpenStreetMap. well the region I need wasn't vectorised so I modified it with JOSM ( Added Roads and buildings) and ...
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1answer
78 views

pgr_pointsaspolygon returns a self intersecting polygon which does not cover underlying points

I am using pgrouting 2.0 library to create an alpha shape around my set of points. It works nearly perfect but I have a case where pgr_pointsaspolygon returns a self intersecting polygon which does ...
0
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1answer
83 views

Routing result not showed up [closed]

I'm following the http://workshop.pgrouting.org/ but my routing result not showed up at all, like the picture below: my firebug also didn't give me an error, I'm using geoserver 2.4.2, postgresql ...
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1answer
80 views

How to use osm2po to solve TSP

I've got a TSP to solve. I created a routable street graph using osm2po and imported the result to PostGIS. On my PG db I installed the pgrouting extension (over PGAdmin3 GUI --> right click ...
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1answer
158 views

Shortest Path Dijkstra

I would like to calculate the shortest path with dijkstra algorithm. sample query SELECT seq, id1 AS node, id2 AS edge, cost FROM pgr_dijkstra(' SELECT gid AS id, ...
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99 views

Traversing all possible road routes

I have created a topology from OSM data and would like to simulate a car driving every possible route along the map. The purpose is to "survey" the osm data as if in a car. My ultimate objective is to ...
0
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2answers
1k views

PostgreSQL function does not exist

I have PostgreSQL 9.2 with Pgrouting extension, but when I want to call a function(pgrouting) does not work. Id like to compute the shortest path between two point. SELECT gid, AsText(the_geom) AS ...
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0answers
42 views

How can I build a network from a latitude, longitude points? [closed]

How can I build a network from a latitude, longitude points? I have some points(latitude and longitude) and i wish to build my network based on this points.
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0answers
259 views

pgrouting php problem “pg_fetch_result(): Unable to jump to row 0 on PostgreSQL result index 3”

I'm trying to build a simple routing web-app using pgrouting, followed some tutorial and the latest workshop. Because I'm using PostgreSQL 9.3(x64), Postgis 2.1.1, and pgrouting 2.0 so I did some ...
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0answers
85 views

Maximum number of points in a linestring?

I have a database (in Postgres/PostGIS) of GPS points recorded all over a rail network. The only data available is the lat/long coords of each point (no timestamps, links between points, or anything ...
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1answer
66 views

Can I use Point as the geom type in pgrouting?

in my table i have the field geom(POINT, srid) and its populated, this table also have the source an target field witch is blank(just like pgrouting guide). I tried the function pgr_createTopology() ...
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3answers
239 views

Why mobile routing is so fast?

Why my mobile GPS routing calculates routes almost instantly and using pgRouting in my robust PC is so time costly ? EDIT: My test: In my cellphone (Android 4.2.2 - 1G RAM - Dual core - Arm v9) I ...
0
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1answer
35 views

pgrouting download link not working

I am trying to download pgrouting but the download links are not working. I have tried many links but no link is working. can you please help me in this regard. will be thankful
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2answers
121 views

How to add other column into pgrouting query result in pgAdmin output pane?

I'm working on my final research project now and I'm a new user in pgrouting. Is there any chances to add another column name to display in the output pane? I'd like to add road name column so that I ...
0
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2answers
165 views

Problem Importing shapefile into postgresql with simple geometries

I have a Line Type shapefiles to be imported to postgis database on my postgresql, I'm using the SHP loader, I checked the "Generate simple geometries instead of MULTI Geometries" options so that the ...
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0answers
39 views

Create a single line from a resultset of line segments

How can I create a single line using the line segments geometry found in each row in resultset? I followed this tutorial: http://anitagraser.com/2013/07/06/pgrouting-2-0-for-windows-quick-guide/ I ...
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135 views

Problem with pgRouting and pgr_createTopology

I follow this tutorial: http://anitagraser.com/2013/07/06/pgrouting-2-0-for-windows-quick-guide/ and create a graph using OSM data (planet_osm_roads table). All goes with no error, but searching ...