2014-07-28 FE Suffolk Introduction to OpenStreetMap

Presentation I gave to FE Suffolk introducing OpenStreetMap

Transcript

1. 28th July 2014 FE Suffolk: Introduction to OpenStreetMap Shaun McDonald! @smsm1
2. Show of hands
3. Have you heard of OpenStreetMap before?
4. Have you edited OpenStreetMap before?
5. Have you used OpenStreetMap data as a developer?
6. Do you use OSM maps as an end user?
7. About Me ❖ Came across OpenStreetMap back in March 2007! ❖ Started editing in Edinburgh! ❖ Moved to London to work for CloudMade in April 2008! ❖ Wrote significant portion of API 0.6! ❖ Helped run various mapping parties and conferences over the years! ❖ Moved to Ipswich to work for ITO World in June 2012
8. Why OpenStreetMap? ❖ Started by Steve Coast in 2004 after problems with cost of geo data from the Ordnance Survey! ❖ Licensing problems for what the data could be used for, thus innovation stifled! ❖ Custom rendering for specialist maps! ❖ Custom routing engines! ❖ Offline maps! ❖ Fabric
15. OpenWhateverMap.org
16. Real world OSM usage
17. CycleStreets ❖ First journey planner for cyclists in the UK! ❖ Available on the web, mobile, apps, and API for developers! ❖ Integrated into various cycle campaign organisations and local authority websites! ❖ http://www.cyclestreets.net/ ! ❖ http://cycle.st/j40333132
18. cycle.travel ❖ News about cycling! ❖ Route information! ❖ Journey planning with draggable routes! ❖ Can download route to GPS or print out itinerary! ❖ Custom map style similar to OS map
19. Haiti ❖ Disaster relief! ❖ Remote mapping! ❖ Obtaining imagery! ❖ Humanitarian OpenStreetMap Team (HOT) formed shortly afterward for future disasters! ❖ @hotosm! ❖ http://hot.openstreetmap.org/ ! ❖ http://vimeo.com/9182869
20. Bus stop timetable posters ❖ ITO World produce web tools for creating bus stop timetable posters! ❖ Used in Norfolk, and various other regions! ❖ Map of the area around the bus stop is useful for people getting off the bus
21. Splash Maps ❖ Problems with licensing Ordnance Survey data! ❖ Comes from the problem of travelling with paper maps getting wet and hard to fold! ❖ Use a combination of Open Ordnance Survey and OpenStreetMap data! ❖ http://www.splashmaps.net/
22. Foursquare ❖ In March 2012, Foursquare switched to using OSM through MapBox! ❖ Google Maps introduced charging for bigger users of their maps! ❖ https://foursquare.com/about/osm ! ❖ https://www.mapbox.com/blog/ foursquare-switches-mapbox-streets- openstreetmap/
23. Data Model
24. Data Model: Nodes ❖ Single points! ❖ Examples:! ❖ Bus stops, Stations! ❖ Bicycle parking, playgrounds, benches! ❖ Post boxes! ❖ Places! ❖ Shops, offices, restaurants, cafes! ❖ Traffic lights, traffic calming
25. Data model: Ways ❖ Lines and areas (closed ways)! ❖ Examples:! ❖ Roads, paths, ferry routes! ❖ Building outlines! ❖ Car parks, playgrounds! ❖ Rivers, lakes, coastline! ❖ Forest, fields, parks
26. Data model: Relations ❖ Ordered collections of nodes, ways, and relations! ❖ Examples:! ❖ Bicycle, walking, bus routes! ❖ Complex buildings e.g. courtyards! ❖ Turn restrictions! ❖ Multipolygons
27. Data model: Tags ❖ Tags are on all nodes, way, relations and changesets! ❖ Key/value pairs! ❖ Maximum of 255 characters! ❖ http://www.osm.org/way/170636121
28. Data model: Changesets ❖ Groups of changes grouped together! ❖ Not atomic like source control! ❖ Diff uploads are atomic however! ❖ Includes a comment so that others know where you got the data from or what changes you have made and potentially why
29. Data model: Notes ❖ Completely separate data structure.! ❖ Similar to a bug tracker for software, but instead for the map data! ❖ API available to integrate viewing and creation in your own site
30. Editing OpenStreetMap data
31. Editing cycle Spot error or missing data in OSM Collect data from the ground! or from local knowledge Change the data in an editor and upload/save See the changes appear on maps ❖ http://learnosm.org/en/
32. Data collection ❖ Pen and paper! ❖ http://walking-papers.org/ ! ❖ GPS (phone or dedicated)! ❖ Mobile phone! ❖ Camera! ❖ Video! ❖ Audio
33. Editing OSM: iD ❖ Newest mainstream editor! ❖ Default editor! ❖ Javascript based! ❖ Simplest for beginners! ❖ Don’t need to worry 
 about data model! ❖ Localised presets
34. Editing OSM: Potlatch 2 ❖ Previous default editor! ❖ Adobe Flash based! ❖ Still has some advanced features that are not available elsewhere
35. Editing OSM: JOSM ❖ Desktop editor! ❖ Java! ❖ Aimed at advanced users! ❖ People used to GIS packages may find it easier to use
36. Editing OSM: Vespucci ❖ Android mobile editor! ❖ Ideal for small on the ground edits! ❖ Uses JOSM presets! ❖ Actively being developed and becoming easier to use
37. Editing OSM: Go Map! ❖ iOS editor! ❖ Ideal for small on the ground edits! ❖ Can be used by beginners
38. Mapillary ❖ Started early 2014! ❖ Open licensed variant of Google StreetView that anyone can contribute to ! ❖ Images licensed as Creative Commons Attribution-ShareAlike! ❖ Can derive data to enter into OpenStreetMap
39. Opening hours ❖ Tool to help with getting the time based tags correct! ❖ Some editors have tools to help you! ❖ Can then create maps which only show places that are currently open (or will be open when you get there)
41. Using OSM data in your own projects
42. Map Tiles ❖ Slippy maps are made up of lots of 256x256 PNG images tiled together! ❖ JS libraries such as OpenLayers and Leaflet use the images to produce the map! ❖ Small personal project or prototype can use the main OSM tiles! ❖ Some tile providers such as MapQuest and MapBox! ❖ Run your own tile server! ❖ http://switch2osm.org/ ! ❖ http://wiki.osm.org/wiki/Tile_usage_policy
43. Geocoding ❖ Where is Ipswich? Where are the cafes in Ipswich?! ❖ Reverse geocoding: Where am I?! ❖ Nominatim is the main OSM software providing geocoding! ❖ Commercial providers of geocoding using pure OSM, or mix of OSM and other data sources
44. Routing ❖ How do I get from A to B?! ❖ Many options for running your own service, can create custom weightings! ❖ Many different service providers! ❖ Different modes of transport! ❖ Different preferences for the journey
45. Editing API ❖ For editing OSM data! ❖ Can use for creating and commenting on notes from your own site! ❖ XML based! ❖ http://wiki.osm.org/wiki/API_v0.6! ❖ API version 0.7 is in the works
46. Planet file and extracts ❖ Can download all of the data in the world from planet.osm.org ! ❖ Various extracts available to country or county level from other providers! ❖ Minutely, hourly and daily diffs available
47. Overpass ❖ API to easily extract OSM data with queries! ❖ XML commands to choose which data to extract! ❖ http://wiki.openstreetmap.org/wiki/ Overpass_API
48. Taginfo ❖ Information about tags in the OSM data! ❖ Various country variants, including Great Britain
49. Questions? Shaun McDonald! shaun@shaunmcdonald.me.uk! @smsm1
50. Photo Acknowledgements ❖ All photos/screenshots my own, or otherwise mentioned! ❖ https://www.flickr.com/photos/merille/8076026375 - Hands in air! ❖ https://www.flickr.com/photos/smsm1/9096807300/ - Presenter! ❖ http://hot.openstreetmap.org/updates/ 2011-03-15_haiti_osm_mapping_for_japan_and_libya - HOT team