4. AN INTRODUCTION TO OPENSTREETMAP
What's OpenStreetMap(OSM)?
AWikipedia-style platform for maps – open, transparentand
editable byanyone with adesire to do so.
Started in 2004, its builtbyacommunityof mappers that
contribute and maintain free geographic dataof the entire planet
through collaboration.
13. WHAT DO I MAP?
AnythingthatPhysicallyExists!
Roads, trails, cafés, railwaystations, buildings, lakes, etc.,.
Startwith your schoolor college or anyplace where you have
been
Take alook atthe presentmappingin India-
Join HOT(Humanitarian OpenStreetMap Team) -Mappingfor
humanitarian response and economic development.
http://wiki.openstreetmap.org/wiki/India
14. INTRODUCTION TO MAPPING
Whatdo we need?
How do we do?
How the OSM datais structured -Geometryand Tags.
And there are three ways of editingOSM -
1. Usingaerialimagery
2. UsingGPS data(*.gpx) from trackingapps through ground
survey
3. Importingexistinggeodatawhich is compatible with
ODBl(Open Database License) to OSM.
15. WHAT DO WE NEED?
GPS enabled smartphone with trackingapp for ground survey.
Osm registered account.
Tools to convertexistinggeodataif importingis to be done.
16. HOW DO WE DO?
Register and verifyaaccountin osm.
Use anyof these popular GUI editors are:
1. iD -web-based HTML5 editor(easyone)
2. JOSM -Javabased desktop editor(advanced editor)
3. Poltach -Flash-based web editor(notcommonlyused now)
Upload the datato OSM.
17. OSM DATA STRUCTURE
1. Geometry--
Node(Point): Used for mappingPoints of Interest(POIs). Ex:
Cafe's, Shop, etc.,.
Ways: Used for mappingRoads, Rivers, etc.,.
Area: Used for mappingRegionalboundaries, Buildings,
Forests, etc.,.
2. Tags --
Representhow datais saved in OSM.
Theyare atype of key-value pair
Ex: amenity:cafe, name:Coffee day, landuse:forest, etc.,.
18. MAPPING USING OSMTRACKER GPS DATA
InstallOSMTracker app(Available on
Fdroid) to your GPS-enabled smartphone
and turn on GPS
Starttrackingbytakingnote or pic or voice
rec.
Once the trackingis done, save itand export
the track to gpx format
Copythe gpx file to the machine or upload
directlyto osm for editing.
20. STARTING EDITING
1. Go to
2. Sign up and confirm email.
3. Sign in to
4. Open the uploaded track and zoom to your area
5. Click on Editto startediting.
osm.org
osm.org
21. EDIT USING ID
Tracks and notes are shown in pink
Trace the wayand add proper nodes.
23. LEARN MORE
learnosm.org/en
Beginner guide to OSM
OSM Wiki
OSM Help Forums
OpenGeoData
IRC (InternetRelayChat) #osm
OSM Map Features
OSM Tags
--Mainlinglists Indian OSM list