/// <summary>
/// Instructs this dialer to convert a single HK1980 coords to a WCS84 coords.
/// </summary>
/// <param name="incoming"></param>
public async void DialForConversion(GCS_HK1980 incoming)
{
if (!IsReady)
{
throw new InvalidOperationException("Dialer is still being used.");
}
state = DialState.BUSY;
const string target = "http://www.geodetic.gov.hk/transform/v2?";
const string geoStdParams = "inSys=hkgrid&outSys=wgsgeog&";
string northingParam = "n=" + incoming.Northing + "&";
string eastingParam = "e=" + incoming.Easting + "&";
string fullTarget = target + geoStdParams + northingParam + eastingParam;
string responseString = await Client.GetStringAsync(fullTarget);
GCS_WCS84_Raw rawObject = JsonConvert.DeserializeObject <GCS_WCS84_Raw>(responseString);
Result = (GCS_WCS84)rawObject;
state = DialState.DONE;
}
/// <summary>
/// Formally retrieves the result of the conversion, and releases this dialer for other use.
/// </summary>
/// <returns></returns>
public GCS_WCS84 RetrieveResult()
{
state = DialState.READY;
return(Result);
}