private void navigationHelper_LoadState(object sender, LoadStateEventArgs e)
{
//Load desired places from user selection
var grItems = e.NavigationParameter as IEnumerable <SampleDataItem>;
if (grItems != null)
{
foreach (var item in grItems)
{
var pos = item.Position.Split(",".ToCharArray(), StringSplitOptions.RemoveEmptyEntries);
var key = pos[0].Trim() + pos[1].Trim();
if (!VisitedPlaces.ContainsKey(key))
{
Place p = new Place
{
Name = item.Title,
Address = item.Description,
DisplayName = item.Title + Environment.NewLine + item.Description,
Latitude = Convert.ToDouble(pos[0].Trim()),
Longitude = Convert.ToDouble(pos[1].Trim())
};
VisitedPlaces[key] = p;
ProbableVisitedPlaces.Add(p);
}
}
}
locTimer.Stop();
locTimer.Start();
}
private async Task LoadDataFromRuntimeLocationTrack()
{
foreach (var vplace in Util.UserProfileData.ProbableVisitedPlaces)
{
if (!VisitedPlaces.ContainsKey(vplace.UniqueId))
{
VisitedPlaces[vplace.UniqueId] = vplace;
(VisitedPlaces[vplace.UniqueId] as Place).DisplayName = (VisitedPlaces[vplace.UniqueId] as Place).Address;
ProbableVisitedPlaces.Insert(0, VisitedPlaces[vplace.UniqueId] as Place);
//refresh the map to show best possible route
await ShowBestPossibleRoutes();
}
}
}
private async Task ShowBestPossibleRoutes()
{
try
{
//Show best possible route path
if (Util.UserProfileData.CurrentPlace != null)
{
await MapViewer.InvokeScriptAsync("Reset", null);
List <KeyValuePair <double, string> > places = new List <KeyValuePair <double, string> >();
foreach (var item in ProbableVisitedPlaces)
{
places.Add(new KeyValuePair <double, string>(
CalculateDistance(Util.UserProfileData.StartPlace.Latitude, Util.UserProfileData.StartPlace.Longitude, item.Latitude, item.Longitude), item.UniqueId));
}
var maxdistance = places.Max(p => p.Key);
var destinationUniqueId = places.Where(p => p.Key == maxdistance).Select(p => p.Value).First();
var destination = ProbableVisitedPlaces.First(p => p.UniqueId == destinationUniqueId);
var waypoints = ProbableVisitedPlaces.Where(p => p.UniqueId != Util.UserProfileData.StartPlace.UniqueId && p.UniqueId != destinationUniqueId);
foreach (var point in waypoints)
{
await MapViewer.InvokeScriptAsync("createWayPoints", new string[] { point.Latitude.ToString(), point.Longitude.ToString(), point.DisplayName });
}
await MapViewer.InvokeScriptAsync("calcRoute", new string[] { Util.UserProfileData.StartPlace.Latitude.ToString(),
Util.UserProfileData.StartPlace.Longitude.ToString(), destination.Latitude.ToString(), destination.Longitude.ToString(),
Util.UserProfileData.StartPlace.Address, destination.DisplayName });
}
}
catch (Exception ex)
{
Util.HandleMessage("Map direction couldn't be loaded", ex.ToString(), "Error");
}
}