OpenStreetMap in Ghana @ SFD 2015
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CC-BY-SA 4.0 OpenStreetMap in Ghana Enock Seth Nyamador GIS Enthusiast and Open Data advocate Twitter : @Enock4seth
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Transcript of OpenStreetMap in Ghana @ SFD 2015
CC-BY-SA 4.0
OpenStreetMap in GhanaEnock Seth Nyamador
GIS Enthusiast and Open Data advocate
Twitter : @Enock4seth
What is a mapping to you ?
OpenStreetMap
Wikipedia of Maps
OPEN DATA
Open Licensed
Map the world from scratch!
(no copying)
Open Database License (ODbL)
● Open Database License (OdbL)● Free as in FREEDOM● Free to edit● Collaborative
How ?● Local knowledge● Tracing aerial imagery (Bing, MapBox, etc)● Imports● GPS traces● Someone puts it there, and others look at it and
confirm that it is correct
Tags● Using key = value pair to define map features● amenity = fuel
● building = yes
● highway = residential
● Landuse = farm
● http://wiki.openstreetmap.org/wiki/Map_Features
Elements
● Node● Ways● Relation
Node● Latitude and Longitude● Node ID● ATM, Post Office, Bar, Pub etc.
Ways● Linear● Closed● Area● Used for ; roads, buildings, etc
Relation● Used to model logical or geographic relations
between objects● To define routes, administration boundaries
Participate● Online
– OpenStreetMap Editors ; iD, Potlatch, JOSM– IOS – Go Maps, OSMTracker, OpenMaps– Android – OSMTracker, OSMDroid– GPS device
● Offline– fieldpapers.org
Editing OpenStreetMap● ID
● Potlatch
● JOSM
What can I map?
Anything that physically exists and is permanent
Recording dataNames of streets
Types of streets (trunk, residential, motorway)
One-way restrictions
Footpaths, tracks, pedestrian, rivers, railways
Parks, woodland, industrial areas, cemeteries
POI (pubs, cash machines, post offices,
post boxes, bus stops, toilets, supermarkets, restaurants, monuments, hotels, picnic sites, barriers, light houses, piers, sports centres, petrol stations, playgrounds, cinemas, car parks, universities, tourist information, etc etc etc
Who uses OpenStreetMap data?
Using OpenStreetMap
● MAPS.ME
● OSMAnd
How can I use this data ?● Data is stored as XML (open)
● Convertible to: postGIS, SHP, geoJSON & more
OpenStreetMap Ghana● Small community of OSMers● To create Free detailed and up to date maps● Join us :
– [email protected]– twitter.com/osmghana– facebook.com/openstreetmapghana
OpenStreetMap Use Cases● Humanitarian OpenStreetMap Team (HOT)● 2010 Haiti Earthquake ● 2014 Ebola virus epidemic in West Africa● 2015 Nepal earthquake● Ramani Huria, Dar Es Salaam● Etc...
Is that all ?
No !
Thank YouEnock Seth Nyamador
GIS Enthusiast and Open Data advocate
Twitter : @Enock4seth
