Template:Infobox Website OpenStreetMap (OSM) is a collaborative project to create free editable maps. The maps are created using data from portable GPS devices and other free sources. Users can also create new routes or update existing ones using the given editing tools.
The map data and rendered maps are licensed under Creative Commons Attribution-ShareAlike 2.0 license
The makers of OpenStreetMap are aiming for a wiki-like approach to map editing. Inspired by sites such as Wikipedia, the map display features a prominent 'Edit' tab, taking the user to a simple editing interface.
Also in keeping with wiki concepts, the back-end data structures include a full revision history.
OpenStreetMap was founded in July 2004 by Steve Coast. In April 2006 OSM began a process of transforming itself into a foundation.
- "The OpenStreetMap Foundation is an international non-profit organisation dedicated to encouraging the growth, development and distribution of free geospatial data and to providing geospatial data for anybody to use and share."
In July 2007, the OSM Foundation held the first OSM international conference, named "The State of the Map".
The map data in the system so far has mostly been built from scratch, through a collaborative mapping process. This normally begins with users uploading data onto OSM from their handheld GPS units or by tracing from aerial imagery (where permission is given). This is followed by a manual editing process, creating "nodes" and "ways", and tagging these with key-value pairs to represent information about the different types of street, names of the streets etc.
Yahoo! aerial imagery agreement Edit
A special agreement has been made with Yahoo! to allow OpenStreetMap to make use of their vertical aerial imagery. The online editing tools are permitted to display the imagery as an overlay, and OpenStreetMap contributors may create their vector based maps as a derived work, released with an free and open license.
- Nodes are points with a geographic position
- Ways are groups of nodes, representing a polyline or polygon
- Relationships are groups of nodes and ways which can be assigned certain properties
- Tags can be applied to nodes, ways or relationships and consist of name=value pairs
Up to version 0.4 of its protocol, an intermediate element between nodes and ways (segments) was also used.
GPS and Data CollectionEdit
- GPSBabel - convert tracklogs
- AFTrack - Symbian 60v3 for Nokia mobile 'phones live tracking and routing software, from version 1.03 onwards
- BSGPS - Windows CE tracking software
- Online Ajax-style OpenLayers-based slippy map interface. Displaying map tiles rendered by:
- Marble free and open source geographical map application using OSM for KDE.
- Kosmos - a lightweight open source OSM map rendering application, designed for rendering maps interactively and for setting up a local tile map server.
- OSMMap - Desktop Tool for browsing the OSM Maps (using Mapnik and Osmarender)
- Phone and GPS displays
- GPS tracklogs recorded by people out walking, cycling, and driving, combined with their notes and photos from the journey
- Local knowledge
- Public domain sources:
- Satellite and aerial images
- Ability to derive maps from Yahoo! Maps imagery
- Contributed datasets
- AND Automotive Navigation Data data for Netherlands, China, India
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