OpenStreetMap is a collaborative project to create a free editable map of the world. The data is free, and free of legal and technical restrictions. OpenStreetMap is often shorted to OSM.

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39
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8answers
11k views

Creating drive time polygons using open source tools

Is anyone using open source tools and/or data to generate drive time polygons that radiate out from a given location? For example, I have used ESRI products like Network Analyst and Business Analyst ...
38
votes
3answers
21k views

EPSG 3857 or 4326 for GoogleMaps, OpenStreetMap and Leaflet

The discussion at What is the difference between WGS84 and EPSG4326? shows that 4326 is just the EPSG identifier of WGS84.. Wikipedia entries for Google Maps and OpenStreetMap shows that they both ...
33
votes
6answers
9k views

Downloading OpenStreetMap Data

Is there a straightforward way to download data from OpenStreetMap (OSM)? Using North America as an example, I realize Cloudmade (http://downloads.cloudmade.com/north_america) and geofabrik ...
26
votes
11answers
12k views

How would I draw and visualize custom maps based on OSM data?

I would like to be able to use openstreetmap data for a specific region as a source and "draw" from that the map of infrastructure improvements - mostly roads. I want it to be self-hosted (not ...
26
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3answers
1k views

OpenStreetMap content in commercial applications

I was considering the use of the OpenStreetMap API to retrieve vector features and combine them with other source data through a commercial tool. However, OpenStreetMap uses the Creative Commons ...
25
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6answers
1k views

OpenStreetMap or Google Map Maker: where should I donate and volunteer my geographical knowledge?

I definitely know a lot about the places I visit and want to share it with everyone. I want to know if donating and volunteering at OpenStreetMap—which is where I have been helping—is a waste of time: ...
23
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5answers
9k views

Optimizing osm2pgsql imports for OSM data

I'm currently building an instance on EC2 on which to import the entire Planet.osm snapshot of the whole Earth's worth of data for some projects we're working on. I've spun up a large Ubuntu x64 ...
19
votes
6answers
3k views

Creating a small web-mapping/map-tiling service

I am looking for a small-scale and easy way to present one or more polygon shapefiles online (on a municipal website without any existing map-server infrastructure, to be precise). Right now, I'm ...
18
votes
4answers
13k views

How do I load OSM vector data in QGIS 2.x?

In QGIS 1.8 I used the openstreetmap plugin to request data from the server, or open a .osm XML file, which produced 3 layers (polygons, polylines and points) in QGIS. This was great (give or take the ...
17
votes
3answers
739 views

Where to get street data in an importable format?

I don't want to use WMS layers, but to actually store the data in my local server, where can I find street data from the world?
17
votes
7answers
5k views

Are there open access terrain tiles with a permissive license like OSM?

Are there open access terrain pyramidal map tiles with a permissive usage license like OpenStreetMap's? I'm building aviation-related maps with Polymaps and need a good raster basemap. The Google ...
16
votes
6answers
1k views

What's the most promising application (use) of OpenStreetMap data?

In some areas OSM data is very complete and has a level of detail not seen in closed data sources. Another distinguishing factor is that it contains the knowledge of the people who live in that areas. ...
16
votes
3answers
1k views

Is there an opensource way of making 'streetview' panoramas?

I'm interested in making streetview panoramas and am curious if there are any opensource approaches that I should consider for both making and publishing these panoramas. I've been playing with the ...
15
votes
5answers
3k views

Standard SLDs for OpenStreetMaps?

We have downloaded OSM data for our region and loaded them into PostGIS using osm2pgsql. So far so good. On top we have GeoServer and we would like to expose the OSM data using WMS. We would as well ...
14
votes
1answer
735 views

How to detect roads from satellite images?

OpenStreetMap has announced a Bing API to detect roads. I want to know what is the theory behind road detection and if there is any open source tool that do that.
13
votes
2answers
1k views

How to overcome field truncation when converting OSM to shapefile with QGIS?

I am trying to convert an OpenStreetMap file into a shapefile, but I am having problems with the "tags" field being cut-off after 80 characters. With QGIS 1.4, I use the OpenStreetMap plugin to 'Load ...
12
votes
7answers
12k views

What GIS application can open and use .osm files?

A quick question that I don't see an answer to elsewhere: if I download a .osm dataset from Planet.osm (for example) which GIS applications could consume/display this data without translation? For ...
12
votes
5answers
1k views

Quality of free geodata compared to commercial sources

What are the sources of excellent geo-location data as possessed by Google Maps ? I am wondering that, even with large amount of volunteer work involved, why is OSM data not comparable to theirs in ...
11
votes
5answers
5k views

Libraries to render vector-based maps in the browser

Is there a open source JavaScript library like leaflet or openlayer which can be used in a web or mobile application and loads vector-based maps instead of images? I only need the road information and ...
11
votes
5answers
3k views

How do you convert OSM XML to geojson?

I want to take the XML output of a Xapi query and display it using leaflet or polymaps. How can I do that? Is there an easy way to convert XML to geojson
11
votes
5answers
2k views

Speeding up OpenStreetMap PostGIS querying

I have OpenStreetMap data for the Netherlands loaded into a PostGIS database (PostgreSQL 8.3 / PostGIS 1.3.3) using the osmosis schema. This means all tags are stored in a hstore field. In addition to ...
11
votes
3answers
8k views

Creating a custom OpenStreetMap tile server

I'd like to create a map tile server based on the entire OSM planet database for a project I'm working on. I've worked with a couple of guides to try getting something up and running, but haven't ...
11
votes
3answers
604 views

How to add offsets to the route?

Edited: I want to ilustrate my question. Suppose that you're in "Point A" and want to go to "Point B". This points wouldn't be in "at_2po_4pgr" table cause aren't source/targets nodes. Then, I ...
11
votes
3answers
451 views

How to deal with versioning in OpenStreetMap?

The topic of managing geospatial data in a more general sense has come up before here. The topic of versioning was mentioned there as well, but not really dealt with. Traditional geospatial data ...
10
votes
3answers
6k views

Simple way to have an offline web based map?

My goal is to have a world map embedded in a web page, but without access to the internet. Preferrably only a set of tiles in combination with some slippy map js-lib. Storage space is not really an ...
10
votes
2answers
10k views

How to Add OSM Layer to QGIS

How can i add OSM layer in QGIS? The help says there is an OSM plugin i can use. But i don't see it the list of plugins. Or maybe there is a WMS URL for OSM i can use? QGIS version ...
10
votes
4answers
816 views

Open Street Map and PostgreSQL what do I exactly need?

I make my first steps in the GIS world and everything is very new for me even if I work on a "huge" project (ie: for a single programmer) very related to maps. My project needs to know informations ...
10
votes
1answer
888 views

Conflate (merge) private shapefile data with OSM data

Background Downloaded Alberta OSM data from Geofabrik and have it running on a private Linux server using PostgreSQL 9.1, PostGIS 2.0, Mapnik 2.1.0, osm2pgsql, Apache 2, mod_tile, renderd, and ...
9
votes
2answers
4k views

Cutting up a shape file into smaller parts

I've downloaded the 350MB coastline shape file from Openstreetmap, but I really would like to work with a small part of them, is there a way to generate a shapefile of a small area. I'm using MacOSX ...
9
votes
3answers
824 views

How is raw OSM data processed for openstreetmap.org

Can anyone provide insight into how OSM data is processed or rendered for www.openstreetmap.org? A specific example... I extracted data from a recent planet.osm PostGIS dataset for an area in ...
9
votes
3answers
524 views

What's the best way to implement routing through areas such as parking lots?

I'm using OSM2PO to route for walking directions and I've noticed a lot of the OSM walking paths are not ideally setup. For example there are many paths which get divided up by parking lots, which ...
9
votes
1answer
153 views

How to get the contributors on Open Street Map

I have put my osm file in base thanks to osm2pgsql and I am looking a way to get the contributor list. I have searched in my database and haven't found so much... and the osm wiki about the osm2pgsql ...
9
votes
4answers
5k views

Where can I download OpenStreetMap data by geographic region?

I want to use OpenStreetMap data for an ArcEngine application I'm working on, and I need the data to be stored locally. I don't want to download the entire planet.osm file, but rather by state, ...
9
votes
2answers
1k views

Is there a WFS for OSM data?

Is there a WFS for OSM data?
9
votes
1answer
2k views

Reverse Geocoding Libraries

I'm new to GIS and mapping services. Can anyone tell me what my options are for reverse-geocoding libraries, other than nominatim? I'm most likely going to be working with OpenStreetMap data. So ...
8
votes
4answers
3k views

Rendering custom OpenStreetMaps style (land=white, water=black): do I need a dedicated computer just to do this?

EDIT: My goal is NOT to use OpenStreetMap or cloudmade as a web map. I described exactly what I want ("a full, rasterized set of tiles for the entire world at zoom=10 (around 68 Gigapixels, ...
8
votes
5answers
313 views

Tools for (semi) automated woodland tracing from satelite images

I'm trying to draw woodlands in OpenStreetMap, using Yahoo sattelite images. JOSM editor has some plugins that try to automate the process - you have to click inside the area and the plugin finds the ...
8
votes
4answers
453 views

Openstreetmap of a specific city of USA

I want to get the osm of a specific city of USA. I can only get the whole state now. But how can I get the osm data for a specific city.
8
votes
2answers
2k views

How to convert OSM Data to PostgreSQL for Routing Purposes?

I'm creating a routing application using OpenStreetMap. Currently, my task is to convert the data from an OSM file to PostgreSQL. I read about osm2pgsql, but the problem is it says there that ...
8
votes
2answers
1k views

Is there service for exporting georeferenced OpenStreetMap (OSM) maps in GeoTiff format?

Is there a service available for exporting georeferenced OpenStreetMap (OSM) maps in the GeoTiff format?
8
votes
2answers
622 views

How do I rotate the OSM map before printing?

What is the simplest way to rotate and render Openstreetmap data, and still get a nice render? For example Toronto, would fit best rotated slightly on a page in landscape mode, so the northern ...
8
votes
1answer
439 views

Where are the address ranges in Open Street Map?

I recall coming across some OSM initiative that was proposing to put US address ranges in the data using TIGER (I think). However, I have seen no such ranges in any of the data I have looked at so ...
7
votes
4answers
2k views

Looking for geodata of Europe's major roads

As stated in the title, I'm currently looking for a shapefile/other geodata source of Europe's major roads (highways). If anybody knows a free datasource (or a possibility to extract that data from ...
7
votes
3answers
2k views

How to find a point half way between two other points?

I'm working on implementing the OSM Mobile Binary format for map data, and because it uses a 16 bit delta for each point along a way, it cannot represent a way if there is a large distance between two ...
7
votes
4answers
7k views

How to build tile server from Openstreetmap data for beginner?

I am a beginner at GIS and I am developing a Java Application which needs a map. (The map would specifically be of just one city in the Philippines.) I have researched on different ways to do this and ...
7
votes
2answers
2k views

How to generate an image from OSM on command line?

Is there a GNU/Linux command line tool that allows to generate an image file from OSM, preferably as an SVG?
7
votes
4answers
1k views

Data visualisation from OSM planet

In a similar idea to http://flowingdata.com/2010/05/25/world-atlas-of-flickr-geotaggers/ and http://flowingdata.com/2010/05/25/map-of-where-toursists-flock/ I would like to extract OSM planet data, ...
7
votes
1answer
1k views

What are the advantages of pgSQL+PostGIS+pgRouting over a simple MySQL+handwritten routing algorithms?

Goal: To have a routable set of roads in a database and to have a software that can calculate the shortest path (e.g. simple Dijkstra) through this set in a reasonable amount of time (up to 2 ...
7
votes
2answers
2k views

What is the effective and legal way to get map tiles for the size of 2 or 3 states?

I would like to get map tiles possibly from Open Street Map (yes I am aware about tile usage policy and would not like to breach that) or other source for the purpose to serve it as offline maps to ...
7
votes
2answers
2k views

How is EPSG:4326 data 'projected' in a 2D map?

I like to think I'm relatively well-versed in datums, projections, and coordinate reference systems, so if this is a stupid question I will suffer eternal shame. OpenStreetMap data is stored in WGS84 ...