private async Task<GeoCoordinate> ShowMyCurrentLocationOnTheMap()
{
// Get my current location.
Geolocator myGeolocator = new Geolocator();
Geoposition myGeoposition = await myGeolocator.GetGeopositionAsync();
myGeocoordinate = myGeoposition.Coordinate;
wayPoints.Add(new GeoCoordinate(myGeocoordinate.Latitude, myGeocoordinate.Longitude));
//GeoCoordinate myxGeocoordinate = new GeoCoordinate(47.6785619, -122.1311156);
myGeoCoordinate =
CoordinateConverter.ConvertGeocoordinate(myGeocoordinate);
// Make my current location the center of the Map.
this.mapPostItinerary.Center = myGeoCoordinate;
this.mapPostItinerary.ZoomLevel = 16;
// Create a MapOverlay to contain the circle.
startPointOverlay = MarkerDraw.DrawCurrentMapMarker(myGeoCoordinate);
// Create a MapLayer to contain the MapOverlay.
myLocationLayer = new MapLayer();
myLocationLayer.Add(startPointOverlay);
// Add the MapLayer to the Map.
mapPostItinerary.Layers.Add(myLocationLayer);
return myGeoCoordinate;
}
//###################################################################################################################
//################################################## Constructor ####################################################
//###################################################################################################################
public GeolocationSample (DateTimeOffset _startDateTime, Geocoordinate geocoordinate)
{
this.MeasurementTime = geocoordinate.Timestamp.Subtract(_startDateTime);
this.Latitude = geocoordinate.Point.Position.Latitude;
this.Longitude = geocoordinate.Point.Position.Longitude;
this.Altitude = geocoordinate.Point.Position.Altitude;
this.Accuracy = geocoordinate.Accuracy;
this.Speed = geocoordinate.Speed.HasValue ? geocoordinate.Speed.Value : 0d;
}
async static void InitialPosition(Sensor sensor)
{
try
{
var geopos = await sensor.GetGeopositionAsync();
position = geopos.Coordinate;
}
catch { }
}
private void AddMapIcon(Geocoordinate location, String name)
{
//Add an mapicon for the given location
MapIcon mapIcon = new MapIcon();
mapIcon.Location = location.Point;
mapIcon.NormalizedAnchorPoint = new Point(0.5, 1.0);
mapIcon.Title = name;
InputMap.MapElements.Add(mapIcon);
}
public async Task<GoogleCivicAddress> ResolveAddressAsync(Geocoordinate coordinate)
{
if (coordinate == null)
throw new ArgumentNullException("coordinate");
var url = string.Format(CultureInfo.InvariantCulture, "http://maps.googleapis.com/maps/api/geocode/xml?latlng={0},{1}&sensor=true", coordinate.Latitude, coordinate.Longitude);
var wc = new HttpClient { Timeout = TimeSpan.FromSeconds(30) };
var result = await wc.GetStringAsync(url);
return ParseResult(result);
}
public static GeoCoordinate ConvertGeocoordinateGreen(Geocoordinate geocoordinate)
{
return new GeoCoordinate
(
geocoordinate.Latitude,
geocoordinate.Longitude,
geocoordinate.Altitude ?? Double.NaN,
geocoordinate.Accuracy,
geocoordinate.AltitudeAccuracy ?? Double.NaN,
geocoordinate.Speed ?? Double.NaN,
geocoordinate.Heading ?? Double.NaN
);
}
public static GeoCoordinate ConvertGeocoordinate(Geocoordinate geocoordinate)
{
return new GeoCoordinate
(
geocoordinate.Point.Position.Latitude,
geocoordinate.Point.Position.Longitude,
geocoordinate.Point.Position.Altitude,
geocoordinate.Accuracy,
geocoordinate.AltitudeAccuracy ?? double.NaN,
geocoordinate.Speed ?? double.NaN,
geocoordinate.Heading ?? double.NaN
);
}
public static GeoCoordinate convertidirGeocoordinate(Geocoordinate geocoordenada)//Metodo que convierte de Geocoordinate a GeoCoordinate
{
return new GeoCoordinate
(
geocoordenada.Latitude,
geocoordenada.Longitude,
geocoordenada.Altitude ?? Double.NaN,
geocoordenada.Accuracy,
geocoordenada.AltitudeAccuracy ?? Double.NaN,
geocoordenada.Speed ?? Double.NaN,
geocoordenada.Heading ?? Double.NaN
);
}
public static async Task<IEnumerable<ItemViewModel>> GeoSearchAsync(Geocoordinate coordinate)
{
var position = coordinate.Point.Position;
var orderByFilter = $"geo.distance(LOCATION, geography'POINT({position.Longitude} {position.Latitude})')";
var searchParameters = new SearchParameters()
{
Filter = "FEATURE_CLASS eq 'Trail'",
OrderBy = new[]
{
orderByFilter
}
};
return await DoSearchAsync("*", searchParameters);
}
public static Coordinate Create(Geocoordinate underlayed)
{
var c = new Coordinate();
try { c.Alt = Convert.ToInt32(underlayed.Altitude); }
catch { };
try { c.HDOP = Convert.ToInt32(underlayed.Accuracy); }
catch { };
try { c.Course = Convert.ToInt32(underlayed.Heading); }
catch { };
try { c.Lat = underlayed.Latitude; }
catch { };
try { c.Lon = underlayed.Longitude; }
catch { };
try { c.Speed = underlayed.Speed.GetValueOrDefault(0); }
catch { };
try { c.Timestamp = Convert.ToInt32(underlayed.Timestamp.UtcDateTime.Subtract(new DateTime(1970, 1, 1)).TotalSeconds); }
catch { };
return c;
}
/// <returns>Returns null if exited Stationary modus, else returns Report Interval in milliseconds (lazy or aggressive)</returns>
public double? GetNewReportInterval(Position newPosition)
{
if (_previousPosition == null) // first position-update in stationary, always aggresive
{
_previousPosition = newPosition;
return _stationaryPollingIntervalAggresive.TotalMilliseconds;
}
var distance = GetDistanceToStationary(newPosition);
if (distance > _stationaryRadius)
{
// exit stationary
_stationaryPosition = null;
_stationaryGeocoordinate = null;
return null;
}
var percentage = distance / _stationaryRadius;
return percentage < 0.5 ? _stationaryPollingIntervalLazy.TotalMilliseconds : _stationaryPollingIntervalAggresive.TotalMilliseconds;
}
public static async Task<IEnumerable<ItemViewModel>> GeoSearchAsync(Geocoordinate coordinate, string filter = null)
{
var position = coordinate.Point.Position;
var orderByFilter = $"geo.distance(LOCATION, geography'POINT({position.Longitude} {position.Latitude})')";
var searchParameters = new SearchParameters()
{
Filter = CreateFilter(filter),
OrderBy = new[]
{
orderByFilter
},
Facets = new[]
{
FacetName
}
};
return await DoSearchAsync("*", searchParameters);
}
public static GeoCoordinate ToGeoCoordinate(this Geocoordinate geocoordinate)
{
if (geocoordinate == null)
{
return(null);
}
GeoCoordinate geoCoordinate = new GeoCoordinate()
{
// Per MSDN, http://msdn.microsoft.com/en-us/library/ee808821.aspx (not in the invidual properties, but rather this constructor)
// Altitude, Course and Speed and VerticalAccuracy, if unknown, they are supposed to be NaN.
Altitude = geocoordinate.Altitude ?? double.NaN,
Course = geocoordinate.Heading ?? double.NaN,
HorizontalAccuracy = geocoordinate.Accuracy,
Latitude = geocoordinate.Latitude,
Longitude = geocoordinate.Longitude,
Speed = geocoordinate.Speed ?? double.NaN,
VerticalAccuracy = geocoordinate.AltitudeAccuracy ?? double.NaN,
};
return(geoCoordinate);
}
public GpxCoordinate( Geocoordinate Position, DateTime Time )
{
this.Position = Position;
this.Time = Time;
}
public void ExitStationary()
{
_stationaryGeocoordinate = null;
}
public static double GetDistanceTo(this Geocoordinate a, Geocoordinate b)
{
return EarthRadiusInMeters * 2 * Math.Asin(Math.Min(1, Math.Sqrt((Math.Pow(Math.Sin((DiffRadian(a.Latitude, b.Latitude)) / 2.0), 2.0)
+ Math.Cos(ToRadian(a.Latitude)) * Math.Cos(ToRadian(b.Latitude)) * Math.Pow(Math.Sin((DiffRadian(a.Longitude, b.Longitude)) / 2.0), 2.0)))));
}
private MvxGeoLocation CreateLocation(Geocoordinate coordinate)
{
var position = new MvxGeoLocation { Timestamp = coordinate.Timestamp };
var coords = position.Coordinates;
// TODO - allow nullables - https://github.com/slodge/MvvmCross/issues/94
coords.Altitude = coordinate.Altitude ?? 0.0;
coords.Latitude = coordinate.Latitude;
coords.Longitude = coordinate.Longitude;
coords.Speed = coordinate.Speed ?? 0.0;
coords.Accuracy = coordinate.Accuracy;
coords.AltitudeAccuracy = coordinate.AltitudeAccuracy ?? double.MaxValue;
return position;
}
protected override void OnNavigatedTo(System.Windows.Navigation.NavigationEventArgs e)
{
if (!IsolatedStorageSettings.ApplicationSettings.Contains("LocationConsent"))
{
MessageBoxResult result =
MessageBox.Show("This app accesses your phone's location. Is that ok?",
"Location",
MessageBoxButton.OKCancel);
IsolatedStorageSettings.ApplicationSettings["LocationConsent"] = (result == MessageBoxResult.OK);
IsolatedStorageSettings.ApplicationSettings.Save();
}
if ((bool)IsolatedStorageSettings.ApplicationSettings["LocationConsent"])
{
geolocator = new Geolocator();
geolocator.DesiredAccuracy = PositionAccuracy.High;
geolocator.MovementThreshold = 1; // The units are meters.
geolocator.StatusChanged += (sender, args) =>
{
status = args.Status;
ShowLoc();
};
geolocator.PositionChanged += (sender, args) =>
{
coordinate = args.Position.Coordinate;
ShowLoc();
};
}
if (Motion.IsSupported)
{
motion = new Motion();
motion.TimeBetweenUpdates = TimeSpan.FromMilliseconds(20);
motion.CurrentValueChanged += (sender, e2) => CurrentValueChanged(e2.SensorReading);
// Try to start the Motion API.
try
{
motion.Start();
}
catch (Exception)
{
MessageBox.Show("unable to start the Motion API.");
}
}
Appointments appointments = new Appointments();
appointments.SearchCompleted += (sender, e2) =>
{
DateList.ItemsSource = e2.Results.OrderBy(p => p.StartTime);
Waiter(false);
};
appointments.SearchAsync(DateTime.Now, DateTime.Now.AddDays(7), null);
}
public GeocoordinateModel(Geocoordinate geocoordinate)
{
this.GeoCoordinate = geocoordinate.ToGeoCoordinate();
this.Timestamp = geocoordinate.Timestamp.UtcDateTime;
}
private void PraseCityUsingBaiduAPI(Geocoordinate geocoordinate)
{
string url = string.Format(@"http://api.map.baidu.com/geocoder/v2/?ak={0}&location={1},{2}&output=json",
Configmanager.BAIDUMAP_APPKEY, geocoordinate.Point.Position.Latitude, geocoordinate.Point.Position.Longitude);
FormAction GeocodingBaiDuAction = new FormAction(url);
GeocodingBaiDuAction.Run(false);
GeocodingBaiDuAction.FormActionCompleted += (result, ss) =>
{
/*
{"status":0,"result":{"location":{"lng":121.34878897239,"lat":31.219452183508},"formatted_address":"上海市闵行区仙霞西路地道","business":"华漕,虹桥机场","addressComponent":{"city":"上海市","country":"中国","direction":"","distance":"","district":"闵行区","province":"上海市","street":"仙霞西路地道","street_number":"","country_code":0},"poiRegions":[{"direction_desc":"\u5185","name":"\u4e0a\u6d77\u8679\u6865\u673a\u573a"}],"sematic_description":"上海虹桥机场内,许浦港东119米","cityCode":289}}
*/
JToken jtoken = JToken.Parse(result);
string status = jtoken["status"].ToString();
if (string.Equals(status, "0"))
{
string city = jtoken["result"]["addressComponent"]["city"].ToString().Replace("市", "");
//Save the Located City
AppSettings.Intance.LocationCity = city;
}
};
}
public void StartStationary(Position stationaryPosition, Geocoordinate geocoordinate)
{
_stationaryPosition = stationaryPosition;
_stationaryGeocoordinate = geocoordinate;
}
// Events --------
// Geolocation
void onGeolocationChanged(Geolocator sender, PositionChangedEventArgs args)
{
//Debug.WriteLine("AdMob.onGeolocationChanged: Called longitude=" + args.Position.Coordinate.Longitude +
// ", latitude=" + args.Position.Coordinate.Latitude);
geocoordinate = args.Position.Coordinate;
}
private async Task getCurrentLocation()
{
//Request the current location with the geolocator
var accessStatus = await Geolocator.RequestAccessAsync();
//Check the response type
switch (accessStatus)
{
case GeolocationAccessStatus.Allowed:
//Getting location is enabled
Summary.Text = "Locating your current position...";
Geoposition pos = await geolocator.GetGeopositionAsync();
currentLocation = pos.Coordinate;
Summary.Text = "Location found, make an route";
Error.Text = "";
//Zooming to current location
InputMap.Center = currentLocation.Point;
InputMap.ZoomLevel = 8;
break;
case GeolocationAccessStatus.Denied:
//Getting location is disabled, show a link to the settings
Summary.Text = "";
Hyperlink link = new Hyperlink();
Summary.Inlines.Add(new Run()
{
Text = "Access to current location denied."
});
Summary.Inlines.Add(new LineBreak());
Summary.Inlines.Add(new Run()
{
Text = "Check your "
});
link.Inlines.Add(new Run()
{
Text = "location settings",
Foreground = new SolidColorBrush(Colors.White)
});
link.NavigateUri = new Uri("ms-settings:privacy-location");
Summary.Inlines.Add(link);
break;
case GeolocationAccessStatus.Unspecified:
Summary.Text = "An unexpected problem occured";
break;
}
}
/// <summary>
/// Event handler for StatusChanged events. It is raised when the
/// location status in the system changes.
/// </summary>
/// <param name="sender">Geolocator instance</param>
/// <param name="e">Statu data</param>
async private void OnStatusChanged(Geolocator sender, StatusChangedEventArgs e)
{
await CoreApplication.MainView.CoreWindow.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
GeolocationPin.Status = e.Status;
switch (e.Status)
{
case PositionStatus.Ready:
// Location platform is providing valid data.
ShowStatus("Geolocation is ready", StatusType.Info, 5, 0);
break;
case PositionStatus.Initializing:
// Location platform is attempting to acquire a fix.
ShowStatus("Initializing");
break;
case PositionStatus.NoData:
// Location platform could not obtain location data.
ShowStatus("No data", StatusType.Error, 5, 0);
break;
case PositionStatus.Disabled:
// The permission to access location data is denied by the user or other policies.
ShowStatus("Disabled", StatusType.Error, 5, 0);
// Show message to the user to go to location settings
//LocationDisabledMessage.Visibility = Visibility.Visible;
// Clear cached location data if any
CurrentPosition = null;
break;
case PositionStatus.NotInitialized:
// The location platform is not initialized. This indicates that the application
// has not made a request for location data.
ShowStatus("Not initialized");
break;
case PositionStatus.NotAvailable:
// The location platform is not available on this version of the OS.
ShowStatus("Not available", StatusType.Error, 5, 0);
break;
default:
ShowStatus("Unknown", StatusType.Error, 5, 0);
GeolocationPin.Status = PositionStatus.NoData;
break;
}
});
}
private string GetCoordinateString(Geocoordinate geocoordinate)
{
string positionString = string.Format("纬度: {0:0.0000}, 经度: {1:0.0000}, 误差: {2}m",
geocoordinate.Latitude, geocoordinate.Longitude, geocoordinate.Accuracy);
latitude = geocoordinate.Latitude;
longitude = geocoordinate.Longitude;
return positionString;
}
async private void PositionChanged(Geolocator sender, PositionChangedEventArgs e)
{
//Event only gets called when geolocator has a location found
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
//Updating current location
currentLocation = e.Position.Coordinate;
//Updating mapicon of the current location
for (int i = 0; i < InputMap.MapElements.Count; i++)
{
if (InputMap.MapElements[i] is MapIcon)
{
MapIcon icon = (MapIcon)InputMap.MapElements[i];
if (icon.Title.Equals(nameCurrentLocation))
{
InputMap.MapElements.Remove(icon);
break;
}
}
}
AddMapIcon(currentLocation, nameCurrentLocation);
});
}
private UpdateScaledDistanceFilterResult UpdateScaledDistanceFilter(double? currentAvgSpeed, Geocoordinate geocoordinate)
{
var result = new UpdateScaledDistanceFilterResult(_scaledDistanceFilter.HasValue ? _scaledDistanceFilter.Value : 0);
var lastPosition = _positionPath.GetLastPosition();
result.Distance = lastPosition.DinstanceToPrevious;
if (!lastPosition.Speed.HasValue || !currentAvgSpeed.HasValue)
{
_scaledDistanceFilter = _distanceFilter;
return result;
}
if (lastPosition.DinstanceToPrevious.HasValue && (lastPosition.DinstanceToPrevious.Value < _distanceFilter || lastPosition.DinstanceToPrevious.Value < _stationaryRadius))
{
// too little movement, start Stationary and/or skip this position update
if (lastPosition.DinstanceToPrevious.Value < _stationaryRadius)
{
_stationaryManager.StartStationary(lastPosition, geocoordinate);
result.StartStationary = true;
}
result.SkipPositionBecauseOfDistance = true;
return result;
}
result.NewScaledDistanceFilter = CalculateNewScaledDistanceFilter(currentAvgSpeed.Value);
_scaledDistanceFilter = result.NewScaledDistanceFilter;
return result;
}
/// <summary>
/// Parses geocoordinate retrieved from JS in form of colon-separated string
/// </summary>
/// <param name="serializedGeoposition">Serialized, colon-separated position</param>
/// <returns>Geocoordinate</returns>
private static Geocoordinate ParseGeocoordinate(string serializedPosition)
{
var dataSplit = serializedPosition.Split(':');
var latitude = double.Parse(dataSplit[0], CultureInfo.InvariantCulture);
var longitude = double.Parse(dataSplit[1], CultureInfo.InvariantCulture);
double?altitude = null;
if (double.TryParse(dataSplit[2], NumberStyles.Float, CultureInfo.InvariantCulture, out double parsedAltitude))
{
altitude = parsedAltitude;
}
double?altitudeAccuracy = null;
if (double.TryParse(dataSplit[3], NumberStyles.Float, CultureInfo.InvariantCulture, out double parsedAltitudeAccuracy))
{
altitudeAccuracy = parsedAltitudeAccuracy;
}
var accuracy = double.Parse(dataSplit[4], CultureInfo.InvariantCulture);
double?heading = null;
if (double.TryParse(dataSplit[5], NumberStyles.Float, CultureInfo.InvariantCulture, out var parsedHeading))
{
heading = parsedHeading;
}
double?speed = null;
if (double.TryParse(dataSplit[6], NumberStyles.Float, CultureInfo.InvariantCulture, out var parsedSpeed))
{
speed = parsedSpeed;
}
var timestamp = DateTimeOffset.UtcNow;
if (long.TryParse(dataSplit[7], NumberStyles.Integer, CultureInfo.InvariantCulture, out var parsedTimestamp))
{
timestamp = DateTimeOffset.FromUnixTimeMilliseconds(parsedTimestamp);
}
var geocoordinate = new Geocoordinate(
latitude,
longitude,
accuracy,
timestamp,
point: new Geopoint(
new BasicGeoposition {
Longitude = longitude, Latitude = latitude, Altitude = altitude ?? 0
},
AltitudeReferenceSystem.Ellipsoid, //based on https://www.w3.org/TR/geolocation-API/
Wgs84SpatialReferenceId), //based on https://en.wikipedia.org/wiki/Spatial_reference_system
altitude: altitude,
altitudeAccuracy: altitudeAccuracy,
heading: heading,
speed: speed);
return(geocoordinate);
}
/// <summary>
/// Event handler for PositionChanged events. It is raised when
/// a location is available for the tracking session specified.
/// </summary>
/// <param name="sender">Geolocator instance</param>
/// <param name="e">Position data</param>
async private void OnPositionChanged(Geolocator sender, PositionChangedEventArgs e)
{
await CoreApplication.MainView.CoreWindow.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
if (e.Position == null)
{
ShowStatus("No Data", StatusType.Error, 5, 0);
}
else
{
CurrentPosition = e.Position.Coordinate;
}
});
}
public static XLocation ConvertXLocation(Geocoordinate geocoordinate, XLocation existing)
{
geocoordinate.CopyProperties(existing);
return existing;
}
void _sendUpdate(Geocoordinate currentPosition = null, double accuracy = 0)
{
if (currentPosition != null)
{
CurrentLocation = LocationHelpers.ConvertXLocation(currentPosition, CurrentLocation);
CurrentLocation.IsResolved = true;
}
else
{
CurrentLocation.IsResolved = false;
}
if (accuracy != 0)
{
CurrentLocation.Accuracy = Convert.ToInt32(accuracy);
}
_fire();
}
public double GetDistanceTo(Geocoordinate other)
{
return _location.GetDistanceTo(new GeoCoordinate(other.Latitude, other.Longitude));
}