Google Geocoder

The ScipBe.Common.Geocoding namespace contains the GoogleGeoCoder class. This class uses the Google Maps Geocoding HTTP REST service to retrieve geographical data like the latitude and longitude of a given address.

Check out one of my articles where I describe the implementation of this GoogleGeoCoder class.

• Using the Google Maps HTTP geocoding service
  

Class diagram:

C# examples:

GoogleGeoCoder geoCoder = new GoogleGeoCoder("A Google Maps API key");
IGeoData geoData = geoCoder.GetGeoData("Street City Country");
if (geoData.Status == GeoStatusCode.Success)
{
  Console.WriteLine(geoData.Accuracy);
  Console.WriteLine("{0}:{1}", geoData.Coordinate.Longitude, geoData.Coordinate.Latitude);
}

GoogleGeoCoder geoCoder = new GoogleGeoCoder("A Google Maps API key");
IGeoData geoData = geoCoder.GetGeoData("Street City Country");
if (geoData.Status == GeoStatusCode.Success)
{
  Console.WriteLine(geoData.Accuracy);
  Console.WriteLine("Address = {0}", geoData.Address);
  Console.WriteLine("Thoroughfare = {0}", geoData.ThoroughfareName);
  Console.WriteLine("Locality = {0}", geoData.DependentLocalityName);
  Console.WriteLine("Administrative area = {0}", geoData.AdministrativeAreaName);
  Console.WriteLine("Country = {0}", geoData.CountryNameCode);
  Console.WriteLine("{0}:{1}", geoData.Coordinate.Longitude, geoData.Coordinate.Latitude);
}

GoogleGeoCoder geoCoder = new GoogleGeoCoder("A Google Maps API key");
geoCoder.GeoListCompleted += new GeoListCompletedEventHandler(geoCoder_GeoListCompleted);
geoCoder.GetGeoListAsync("Street City Country");
 
void geoCoder_GeoListCompleted(object sender, IEnumerable<IGeoData> geoList)
{
  if ((geoList.Count() > 0) && (geoList.First().Status == GeoStatusCode.Success))
  {
    foreach (var geoData in geoList)
    {
      Console.WriteLine("Address = {0}", geoData.Address);
      Console.WriteLine("Country = {0}", geoData.CountryNameCode);
      Console.WriteLine("Coordinates = {0}:{1}", geoData.Coordinate.Longitude, geoData.Coordinate.Latitude);
    }
  }
} 

Copyrights and distribution

• These components are open source (Mozilla Public License 1.1) and may be freely distributed.
• The author doesn't give a warranty for error free running of these components and he doesn't give any support.
• See source code and help file for more information about the classes, interfaces, properties, methods, events, ...

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Google Geocoder

• Contents: Components with sources and help file (C#, .NET 3.5, Visual Studio 2008)
• Version: 1.1 (2008-12-20)
• File size: 75.82 Kb
• Author: Stefan Cruysberghs

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