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OpenStreetMap for GIS Pros - Local Authority Edition

OpenStreetMap for GIS Pros - Local Authority Edition

A shorter version of my 'OpenStreetMap for GIS Pros' workshop for the Irish Local Authority GIS Manager's meeting, March 2014.


Richard Cantwell

March 06, 2014


  1. An Introduction to OpenStreetMap for GIS Professionals richard.cantwell@gamma.ie Local Authority

    GIS Managers Meeting – March 2014
  2. Rule 1: Respect Copyright

  3. opendatacommons.org/licenses/odbl/summary/

  4. opendatacommons.org/licenses/odbl/summary/

  5. Vs creativecommons.org

  6. Map contains data Copyright NavTeq

  7. Map contains data Copyright NavTeq

  8. Map contains data Copyright NavTeq

  9. © Stan Openshaw

  10. None
  11. How OSM represents data in GIS Terms: Nodes / Ways

    / Relations Key / Value pairs TagInfo
  12. Geographic Information is represented as: Nodes Point Ways Line Closed

    Line Area (Polygon) eg. Roundabouts Relations Multi (Point / Line / Polygon) eg. Bus Routes / Inner Rings
  13. Tagging: Key / Value Pairs

  14. Tagging: Key / Value Pairs

  15. Motorway National Primary National Secondary Regional Local Primary Access Tagging:

    International Standards / Local Implementations
  16. Tagging: Key / Value Pairs

  17. Tagging: Oversight, not moderation

  18. Tagging: Oversight, not moderation

  19. Consuming: Tiles, Files and API’s: The OSM ‘Stack’ Tiles –

    your own and/or others Files – Downloads, Databases API’s – OverPass Turbo
  20. Edit Store Render Consume Store Analyse

  21. Tiles

  22. wiki.openstreetmap.org/wiki/Tile_usage_policy OSM Tile Usage Policy

  23. maps.stamen.com/watercolor

  24. www.mapbox.com/blog/interactive-woodcut-map

  25. www.thunderforest.com

  26. MapInfo - .xml and .TAB files

  27. Why make your own? Tile Usage Policy You’re in control:

    Design and Content Need tiles in EPSG:27700? 29903? Having OSM Data in a Database enables a lot of things You will learn a lot
  28. www.switch2osm.org

  29. Files

  30. Entire Planet downloadable (~500GB uncompressed) planet.openstreetmap.org

  31. Processed data downloads & services www.geofabrik.de

  32. download.geofabrik.de Including pre-configured Shapefiles (reduced featureset)

  33. None
  34. None
  35. None
  36. None
  37. API's

  38. None
  39. None
  40. None
  41. None
  42. None
  43. Extract Raw Data – Embedded in a map <div> on

    a web page map.addLayers([ make_layer("http://overpass-api.de/api/interpreter?data= node[amenity=pub](bbox);out+skel; (way[amenity=pub](bbox);node(w););out+skel;", “Blue") ]);
  44. Extract Raw Data – Embedded in a map <div> on

    a web page map.addLayers([ make_layer("http://overpass- api.de/api/interpreter?data=node[amenity=pub](bbox);out+skel;", "blue"), ]);
  45. What can you do for OSM? Talk to the community.

    Provide ( free) data if possible: • Road classifications. • Speed limits. • etc
  46. Next OSM Meetup: Dublin, Sat 8th March: www.tog.ie

  47. Some 'Takeaways‘ License Check obligations if mixing data Data Model

    Area / Multipolygon handling is complex Usage Policies Desktop prob not an issue. Server, web different Build Your Own No apt-get install tileserver Yet Shapefiles Easy, not complete Postgis Starting point for many possibilities Data APIs Great for snapshots in geojson or POI webpages Data vs Services Is OSM commoditising data? Is that bad?
  48. This slide deck is available at: speakerdeck.com/manaboutcouch Thank you. Any

    Questions? Richard Cantwell @ManAboutCouch richard.cantwell@gamma.ie