/// <summary>
/// Add a temporary geometry to the map
/// </summary>
/// <param name="screenPt"></param>
public void AddTempPoint(Mapsui.UI.Forms.Position screenPt)
{
if (CanAddMapGeometry)
{
if (TempCoordinates.Count == 0)
{
MessagingCenter.Send <MapPageVM>(this, "SelectGeometryType");
}
if (Map.Layers[Map.Layers.Count - 1] == TempLayer)
{
Map.Layers.Remove(TempLayer);
}
var mapPt = new Mapsui.Geometries.Point(Convert.ToDouble(screenPt.Longitude), Convert.ToDouble(screenPt.Latitude));
if (GeometryType == "Punkt")
{
TempCoordinates = new List <Mapsui.Geometries.Point>()
{
mapPt
};
}
else if (GeometryType == "Polygon" && TempCoordinates.Count > 0)
{
var prevCoords = new List <Mapsui.Geometries.Point>(TempCoordinates);
if (TempCoordinates.Count == 1)
{
//Complete the polygon
TempCoordinates.Add(TempCoordinates[0]);
}
TempCoordinates.Insert(TempCoordinates.Count - 1, mapPt);
}
else
{
TempCoordinates.Add(mapPt);
}
TempLayer = MapModel.CreateTempLayer(TempCoordinates);
Map.Layers.Insert(Map.Layers.Count, TempLayer);
(SaveGeomCommand as Command).ChangeCanExecute();
}
}
/// <summary>
/// Initialisation
/// </summary>
/// <param name="mapView"></param>
/// <param name="GPSButton"></param>
/// <param name="AddMapGeometryButton"></param>
/// <param name="navigation"></param>
public MapPageVM(Mapsui.UI.Forms.MapView mapView, Button GPSButton, Button AddMapGeometryButton, INavigation navigation)
{
GPSButtonCommand = new Command(GPSButtonPressed, GPSActivated);
LayersButtonCommand = new LayersButtonCommand(this);
CancelGeomCommand = new Command(CancelNewGeom, CanCancelNewGeom);
SaveGeomCommand = new Command(SaveNewGeom, CanSaveNewGeom);
SaveMapCommand = new Command(SaveMaps, CanSaveMaps);
AddMapGeometryCommand = new Command(AllowAddNewGeom, AllowAddNewGeomButtonActivated);
CancelSaveCommand = new Command(CancelSave, AllowCancelSave);
CanAddMapGeometry = false;
Navigation = navigation;
VMGPSButton = GPSButton;
VMGeomEditButton = AddMapGeometryButton;
VMGeomEditButton.BackgroundColor = (Color)Application.Current.Resources["BioDivGrey"];
GeometryType = String.Empty;
Connectivity.ConnectivityChanged += Connectivity_ConnectivityChanged;
ConfigureMap();
mapView.Map = Map;
mapView.Refresh();
mapView.IsNorthingButtonVisible = false;
mapView.IsMyLocationButtonVisible = false;
mapView.IsZoomButtonVisible = false;
mapView.MyLocationLayer.IsMoving = true;
mapView.MyLocationFollow = false;
mapView.RotationLock = true;
mapView.MyLocationEnabled = true;
mapView.Info += MapOnInfo;
OSAppTheme currentTheme = Application.Current.RequestedTheme;
if (currentTheme == OSAppTheme.Dark)
{
mapView.Map.BackColor = Mapsui.Styles.Color.Black;
}
else
{
mapView.Map.BackColor = Mapsui.Styles.Color.White;
}
VMMapView = mapView;
VMMapView.TouchMove += MapView_TouchMove;
VMMapView.ViewportInitialized += VMMapView_ViewportInitialized;
TempCoordinates = new List <Mapsui.Geometries.Point>();
var positionLat = Preferences.Get("LastPositionLatitude", 47.36);
var positionLong = Preferences.Get("LastPositionLongitude", 8.54);
Mapsui.Geometries.Point centre = new Mapsui.Geometries.Point(positionLong, positionLat);
var sphericalMercatorCoordinate = SphericalMercator.FromLonLat(centre.X, centre.Y);
VMMapView.MyLocationLayer.UpdateMyLocation(new Mapsui.UI.Forms.Position(centre.Y, centre.X), false);
VMMapView.Map.Limiter = new ViewportLimiterKeepWithin
{
PanLimits = new BoundingBox(SphericalMercator.FromLonLat(-180, -90), SphericalMercator.FromLonLat(180, 90))
};
try
{
MapLayers = MapModel.MakeArrayOfLayers();
}
catch (Exception e)
{
Console.WriteLine(e);
}
finally
{
Map.Widgets.Add(new Mapsui.Widgets.ScaleBar.ScaleBarWidget(Map)
{
TextAlignment = Mapsui.Widgets.Alignment.Center, HorizontalAlignment = Mapsui.Widgets.HorizontalAlignment.Left, VerticalAlignment = Mapsui.Widgets.VerticalAlignment.Bottom
});
}
MessagingCenter.Subscribe <Application, string>(App.Current, "TileSaved", (sender, arg1) =>
{
SaveCountText = (string)arg1;
});
SaveCountText = String.Empty;
MessagingCenter.Subscribe <Application>(App.Current, "PermissionsChanged", (sender) =>
{
Device.BeginInvokeOnMainThread(() =>
{
GPSButtonCommand.ChangeCanExecute();
});
});
MessagingCenter.Subscribe <MapPageVM>(this, "ShapeDrawingUndone", (sender) =>
{
RefreshShapes();
TempLayer = MapModel.CreateTempLayer(TempCoordinates);
Map.Layers.Insert(Map.Layers.Count, TempLayer);
//SaveGeomCommand.ChangeCanExecute();
});
DeviceDisplay.MainDisplayInfoChanged += HandleRotationChange;
}
