private async void ShowThisLocationAsync(object sender, RoutedEventArgs e)
{
var accesStatus = await Geolocator.RequestAccessAsync();
switch (accesStatus)
{
case GeolocationAccessStatus.Allowed:
//Here we get the user's position using C++
var cPlusPlusClass = new CppProj.Class1();
var position = await cPlusPlusClass.ReturnPosition();
Geopoint thisLocation = position.Coordinate.Point;
double lat = thisLocation.Position.Latitude;
double lon = thisLocation.Position.Longitude;
double speed = (double)position.Coordinate.Speed;
if (double.IsNaN(speed))
{
speed = 0.0;
}
AddMarkerUserPos(thisLocation, "Lat: " + lat.ToString() +
"\n" + " Long: " + lon.ToString() +
"\n" + "Speed: " + speed.ToString());
MapControl1.Center = thisLocation;
MapControl1.ZoomLevel = 17;
MapControl1.LandmarksVisible = true;
Converters converter = new Converters();
CheckpointsClient checkPoint = new CheckpointsClient
{
RouteID = routeId.ToString(),
Latitude = converter.FromDoubleToString(lat),
Longitude = converter.FromDoubleToString(lon),
CPDateTime = DateTime.Now
};
RequestHandler handler = new RequestHandler();
await handler.PostDataToAPI(checkPoint);
break;
case GeolocationAccessStatus.Denied:
break;
case GeolocationAccessStatus.Unspecified:
break;
}
}
public async Task PostDataToAPI(CheckpointsClient checkpointToPost)
{
using (var client = RouteHttpClient.GetRequest())
{
StringContent content = new StringContent(JsonConvert.SerializeObject(checkpointToPost), Encoding.UTF8, "application/json");
HttpResponseMessage response = await client.PostAsync("api/Checkpoints", content);
if (!response.IsSuccessStatusCode)
{
throw new Exception((int)response.StatusCode + "-" + response.StatusCode.ToString());
}
}
}
private async void UpdatePosition()
{
var accesStatus = await Geolocator.RequestAccessAsync();
switch (accesStatus)
{
case GeolocationAccessStatus.Allowed:
Geolocator geolocator = new Geolocator();
Geoposition position = await geolocator.GetGeopositionAsync();
Geopoint thisLocation = position.Coordinate.Point;
path.Add(thisLocation);
double lat = thisLocation.Position.Latitude;
double lon = thisLocation.Position.Longitude;
ShowPath();
Converters converter = new Converters();
CheckpointsClient checkPoint = new CheckpointsClient
{
RouteID = routeId.ToString(),
Latitude = converter.FromDoubleToString(lat),
Longitude = converter.FromDoubleToString(lon),
CPDateTime = DateTime.Now
};
RequestHandler handler = new RequestHandler();
await handler.PostDataToAPI(checkPoint);
break;
case GeolocationAccessStatus.Denied:
break;
case GeolocationAccessStatus.Unspecified:
break;
}
}
public double ComputeSpeed(CheckpointsClient cp1, CheckpointsClient cp2)
{
var pos1 = new BasicGeoposition()
{
Latitude = Convert.ToDouble(cp1.Latitude),
Longitude = Convert.ToDouble(cp1.Longitude)
};
var pos2 = new BasicGeoposition()
{
Latitude = Convert.ToDouble(cp2.Latitude),
Longitude = Convert.ToDouble(cp2.Longitude)
};
double R = 6371;
double dLat = ToRadian(pos2.Latitude - pos1.Latitude);
double dLon = ToRadian(pos2.Longitude - pos1.Longitude);
double a = Math.Sin(dLat / 2) * Math.Sin(dLat / 2) +
Math.Cos(this.ToRadian(pos1.Latitude)) * Math.Cos(this.ToRadian(pos2.Latitude)) *
Math.Sin(dLon / 2) * Math.Sin(dLon / 2);
double c = 2 * Math.Asin(Math.Min(1, Math.Sqrt(a)));
double d = (R * c) * 1000;
return(d / Math.Abs(((cp1.CPDateTime.Second + cp1.CPDateTime.Minute * 60 + cp1.CPDateTime.Hour * 3600) -
(cp2.CPDateTime.Second + cp2.CPDateTime.Minute * 60 + cp2.CPDateTime.Hour * 3600))));
}
