private static GeocodePoint GetGeoDataFromVirtualEarth(string geoString)
{
GeocodePoint geocodePoint = null;
try
{
var geoServiceUrl = string.Format(GeoCodeApi, geoString);
var client = new WebClient();
var str = client.DownloadString(geoServiceUrl);
var xml = XElement.Parse(str);
geocodePoint = new GeocodePoint();
var pointNode = xml.Descendants(VeNameSpace + "Point").FirstOrDefault();
var latNode = pointNode != null?pointNode.Descendants(VeNameSpace + "Latitude").FirstOrDefault() : null;
var lonNode = pointNode != null?pointNode.Descendants(VeNameSpace + "Longitude").FirstOrDefault() : null;
if (latNode != null && lonNode != null)
{
geocodePoint.Latitude = double.Parse(latNode.Value);
geocodePoint.Longitude = double.Parse(lonNode.Value);
}
}
catch
{
}
return(geocodePoint);
}
public static Tuple <bool, string> IsCloRegion(string locationId)
{
if (!CloLocationDatas.Any())
{
BuildCoordinateTable();
}
Tuple <bool, string> tuple = new Tuple <bool, string>(false, string.Empty);
if (locationId.Contains("us:postal:"))
{
locationId = locationId.Replace("us:postal:", "");
}
bool isCloRegion = CloLocations.Contains(locationId);
if (isCloRegion)
{
foreach (CloGeocodepoint cloGeocodepoint in cloGeocodepoints)
{
if (cloGeocodepoint.LocationId == locationId)
{
tuple = IsCloRegion(cloGeocodepoint.GeocodePoint.Latitude, cloGeocodepoint.GeocodePoint.Longitude);
break;
}
}
}
if (!isCloRegion && !NonCloLocations.Contains(locationId))
{
GeocodePoint geocodePoint = GetGeoDataFromVirtualEarth(locationId);
if (geocodePoint != null)
{
tuple = IsCloRegion(geocodePoint.Latitude, geocodePoint.Longitude);
if (tuple.Item1)
{
cloGeocodepoints.Add(new CloGeocodepoint()
{
LocationId = locationId,
GeocodePoint = geocodePoint
});
CloLocations.Add(locationId);
}
else
{
NonCloLocations.Add(locationId);
}
}
else
{
Console.WriteLine("Unable to determine Lat,Lon for location {0}", locationId);
}
}
return(tuple);
}