Geonames Dr. Harry Chen CMSC 491S/691S April 2, 2008

Agenda Key Geonames features Try-it-yourself

Key Geonames features

Try-it-yourself

Geonames Project Free geographical database Over 8 million geographical names Over 6.5 million unique features Licensed under a Creative Commons Attribution license Founded by Marc Wick

Free geographical database

Over 8 million geographical names

Over 6.5 million unique features

Licensed under a Creative Commons Attribution license

Founded by Marc Wick

Data Source Geonames combines and consolidates the geographical data published by more than dozen government agencies (not limited to the US gov. agencies) Also includes data from commerical web services and sites (e.g., hotels.com, diytravel). Postal codes of different countries

Geonames combines and consolidates the geographical data published by more than dozen government agencies (not limited to the US gov. agencies)

Also includes data from commerical web services and sites (e.g., hotels.com, diytravel).

Postal codes of different countries

Search Geonames

Geonames Map View

Building Applications Using Geonames Geonames provides Web service interface for querying geospatial data Call using HTTP-Get Output format: XML, JSON, CVS, TXT, RSS Full text search http://ws.geonames.org/search?q=[query ] http://ws.geonames.org/search?q=maryland API doc http://www.geonames.org/export/ws-overview.html

Geonames provides Web service interface for querying geospatial data

Call using HTTP-Get

Output format: XML, JSON, CVS, TXT, RSS

Full text search

http://ws.geonames.org/search?q=[query ]

http://ws.geonames.org/search?q=maryland

API doc

http://www.geonames.org/export/ws-overview.html

Use Geonames in Wiki-style Any user can contribute to the existing Geonames database You can add/edit new geonames records You can also tag geonames records Let’s try this together…

Any user can contribute to the existing Geonames database

You can add/edit new geonames records

You can also tag geonames records

Let’s try this together…