public static double speedKMPerhour(GPSHistoryData nowpos , GPSHistoryData prepos)
{
double distance = postionToDistanceM(prepos, nowpos);
TimeSpan ts = (nowpos.Datetime - prepos.Datetime);
if (ts.TotalSeconds != 0)
{
return (distance / ts.TotalSeconds) * ((double)60 * (double)60)/(double)1000;
}
else
{
return -1;
}
}
//緯度と経度から最寄駅のリストを検索する
//路線ごとに異なる駅と判断します
public List<ClosestStation> requestStationList(GPSHistoryData postion)
{
String baseurl = "http://express.heartrails.com/api/json?method=getStations";
String x = postion.Longitude.ToString();
String y = postion.Latitude.ToString();
String url = baseurl + "&x=" + x + "&y=" + y;
var req = WebRequest.Create(url);
var res = req.GetResponse();
ClosestStationResult closeststaion;
using (res)
{
using (var resStream = res.GetResponseStream())
{
var serializer = new DataContractJsonSerializer(typeof(ClosestStationResult));
closeststaion = (ClosestStationResult)serializer.ReadObject(resStream);
}
}
return ClosestStationResultConvertToClosestStationList(closeststaion);
}
public GPSFormatHistoryData(GPSHistoryData gpshistroydata, double speed)
: base(gpshistroydata.Datetime, gpshistroydata.Latitude, gpshistroydata.Longitude)
{
this.speed = speed;
}