private async void HandleWatchPositionReceived(object sender, GeolocationEventArgs e)
{
LastWatchPositionResult = e.GeolocationResult;
if (LastWatchPositionResult.IsSuccess)
{
var latlng = LastWatchPositionResult.Position.ToLeafletLatLng();
var marker = new Marker(latlng, null);
if (WatchPath is null)
{
WatchMarkers = new List <Marker> {
marker
};
WatchPath = new Polyline(WatchMarkers.Select(m => m.LatLng), new PolylineOptions());
await WatchPath.BindToJsRuntime(JSRuntime);
await WatchPath.AddTo(WatchMap);
}
else
{
WatchMarkers.Add(marker);
await WatchPath.AddLatLng(latlng);
}
await marker.BindToJsRuntime(JSRuntime);
await marker.AddTo(WatchMap);
}
StateHasChanged();
}
public async void ShowCurrentPosition()
{
if (CurrentPositionMarker != null)
{
await CurrentPositionMarker.Remove();
}
CurrentPositionResult = await GeolocationService.GetCurrentPosition();
if (CurrentPositionResult.IsSuccess)
{
CurrentPositionMarker = new Marker(
CurrentPositionResult.Position.ToLeafletLatLng(), null
);
await CurrentPositionMarker.AddTo(PositionMap);
}
StateHasChanged();
}
protected async void AddMarkerAtMapCenter()
{
var mapCentre = await PositionMap.GetCenter();
var marker = new Marker(mapCentre, new MarkerOptions
{
Keyboard = MarkerViewModel.Keyboard,
Title = MarkerViewModel.Title,
Alt = MarkerViewModel.Alt,
ZIndexOffset = MarkerViewModel.ZIndexOffset,
Opacity = MarkerViewModel.Opacity,
RiseOnHover = MarkerViewModel.RiseOnHover,
RiseOffset = MarkerViewModel.RiseOffset,
});
await marker.AddTo(PositionMap);
}