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Open Source Map APIs

Open Source Map APIs. Yahoo, Google, Microsoft. Yahoo Map API. http://developer.yahoo.com/maps/index.html Must have a Yahoo ID Application ID specific to application Simple API AJAX or Flash Implementation 50,000 queries per day limit Traffic API Geocoding API 5000 queries per day

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Open Source Map APIs

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  1. Open Source Map APIs Yahoo, Google, Microsoft http://aims.jocogov.org

  2. Yahoo Map API • http://developer.yahoo.com/maps/index.html • Must have a Yahoo ID • Application ID specific to application • Simple API • AJAX or Flash Implementation • 50,000 queries per day limit • Traffic API • Geocoding API • 5000 queries per day • Local Search API • Example: • http://theurer.cc/maps/y/ http://aims.jocogov.org

  3. Google Map API • http://www.google.com/apis/maps/ • Must have a Google ID • Application ID specific to a folder (subfolders are cascaded) • Geocoding • 50,000 queries per day limit • Add polylines or polygons • Example: • http://www.chicagocrime.org/map/ http://aims.jocogov.org

  4. Microsoft Virtual Earth • http://msdn.microsoft.com/library/default.asp?url=/library/en-us/VEMapControl/HTML/Introduction.asp • Licensing????? • Can access oblique imagery if available • Access to routes/driving directions • Geocoding • Add polylines and polygons • Interactive SDK • http://dev.live.com/virtualearth/sdk/ • Example: • http://www.johnlscott.com/ http://aims.jocogov.org

  5. Examples • Leawood Crime Data • http://maps.jocogov.org/yahootest/main.aspx • Johnson County Employees • RSS Feeds • Batch Geocoding http://aims.jocogov.org

  6. Conclusions • Advantages • Free • Easy • Standard/recognizable format • Some value added options (traffic, weather, etc) • Geocode outside of county boundaries • Embed interactive map into a webpage • Disadvantages • Speed (potentially slower) • Little layer control • Potentially out of date base layers • Could change to fee based service http://aims.jocogov.org

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