/// <summary>
/// Finds bus stops matching the area specified by center location and radius.
/// </summary>
/// <param name="pos">Position</param>
/// <param name="radius">Rectangular search "radius" in kilometers</param>
/// <returns>Array of Stop objects</returns>
public static async Task <Stop[]> FindStopsByLocationAsync(BasicPosition pos, int radius)
{
var box = MapExtensions.GetBoundingBox(pos, radius);
var left = (int)(box.MinPoint.Longitude * 3600000);
var right = (int)(box.MaxPoint.Longitude * 3600000);
var top = (int)(box.MaxPoint.Latitude * 3600000);
var bottom = (int)(box.MinPoint.Latitude * 3600000);
var content = new StringContent("left=" + left + "&bottom=" + bottom + "&right=" + right + "&top=" + top);
var response = await _client.PostAsync(_geoUrl, content);
var locationInfo = await DeserializeAsync <LocationInfo>(response);
return(locationInfo.Stops);
}