internal double GetDistanceTo(MyGeocoordinate myGeocoordinate)
{
if (double.IsNaN(this.Latitude) || double.IsNaN(this.Longitude) || double.IsNaN(myGeocoordinate.Latitude) || double.IsNaN(myGeocoordinate.Longitude))
{
throw new ArgumentException("Argument_LatitudeOrLongitudeIsNotANumber");
}
else
{
double latitude = this.Latitude * 0.0174532925199433;
double longitude = this.Longitude * 0.0174532925199433;
double num = myGeocoordinate.Latitude * 0.0174532925199433;
double longitude1 = myGeocoordinate.Longitude * 0.0174532925199433;
double num1 = longitude1 - longitude;
double num2 = num - latitude;
double num3 = Math.Pow(Math.Sin(num2 / 2), 2) + Math.Cos(latitude) * Math.Cos(num) * Math.Pow(Math.Sin(num1 / 2), 2);
double num4 = 2 * Math.Atan2(Math.Sqrt(num3), Math.Sqrt(1 - num3));
double num5 = 6376500 * num4;
return num5;
}
}
void locator_PositionChanged(Geolocator sender, PositionChangedEventArgs args)
{
Geoposition position = null;
var task = Task.Run(async () =>
{
position = await sender.GetGeopositionAsync(new TimeSpan(0, 0, 0, 0, 200), new TimeSpan(0, 0, 3));
var a = 1;
});
task.Wait();
//Definice MyPosition vlastní náhradní třídou pro geopozici a uložení šířky a délky do jejích property.
MyGeocoordinate coord = new MyGeocoordinate();
coord.Latitude = position.Coordinate.Point.Position.Latitude;
coord.Longitude = position.Coordinate.Point.Position.Longitude;
if (coord != null)
{
MyPosition = coord;
}
//nastavení času aktualizace
LastPositionTime = DateTime.Now;
#if WINDOWS_APP
CoreApplication.MainView.CoreWindow.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
//Výpočet vzdálenosti vůči všm stanicím.
_gpsService.SetPosition();
});
#endif
#if WINDOWS_PHONE_APP
//Výpočet vzdálenosti vůči všm stanicím.
_gpsService.SetPosition();
#endif
}
/// <summary>
/// Load station positions from xml file
/// </summary>
private void LoadPositions()
{
StationPositions = new Dictionary<string, MyGeocoordinate>();
XDocument d = XDocument.Load("SampleData/Positions.xml");
var list = from c in d.Descendants("location")
select c;
string name;
MyGeocoordinate gc;
foreach (var l in list)
{
gc = new MyGeocoordinate();
name = l.Attribute("id").Value;
gc.Latitude = Double.Parse(l.Attribute("x").Value, CultureInfo.InvariantCulture.NumberFormat);
gc.Longitude = Double.Parse(l.Attribute("y").Value, CultureInfo.InvariantCulture.NumberFormat);
StationPositions.Add(name, gc);
}
}
