Geonames

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Geonames

  1. 1. Geonames Dr. Harry Chen CMSC 491S/691S April 2, 2008
  2. 2. Agenda <ul><li>Key Geonames features </li></ul><ul><li>Try-it-yourself </li></ul>
  3. 3. Geonames Project <ul><li>Free geographical database </li></ul><ul><ul><li>Over 8 million geographical names </li></ul></ul><ul><ul><li>Over 6.5 million unique features </li></ul></ul><ul><li>Licensed under a Creative Commons Attribution license </li></ul><ul><li>Founded by Marc Wick </li></ul>
  4. 4. Data Source <ul><li>Geonames combines and consolidates the geographical data published by more than dozen government agencies (not limited to the US gov. agencies) </li></ul><ul><li>Also includes data from commerical web services and sites (e.g., hotels.com, diytravel). </li></ul><ul><li>Postal codes of different countries </li></ul>
  5. 5. Search Geonames
  6. 6. Geonames Map View
  7. 7. Building Applications Using Geonames <ul><li>Geonames provides Web service interface for querying geospatial data </li></ul><ul><ul><li>Call using HTTP-Get </li></ul></ul><ul><ul><li>Output format: XML, JSON, CVS, TXT, RSS </li></ul></ul><ul><li>Full text search </li></ul><ul><ul><li>http://ws.geonames.org/search?q=[query ] </li></ul></ul><ul><ul><li>http://ws.geonames.org/search?q=maryland </li></ul></ul><ul><li>API doc </li></ul><ul><ul><li>http://www.geonames.org/export/ws-overview.html </li></ul></ul>
  8. 8. Use Geonames in Wiki-style <ul><li>Any user can contribute to the existing Geonames database </li></ul><ul><li>You can add/edit new geonames records </li></ul><ul><li>You can also tag geonames records </li></ul><ul><li>Let’s try this together… </li></ul>

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