private void mapItemButton_Click(object sender, RoutedEventArgs e)
{
var mapItemButton = sender as Button;
PointOfCustomRoute currMapItem = mapItemButton?.DataContext as PointOfCustomRoute;
if (currMapItem != null)
{
int ind = MyMapVM.PointList.IndexOf(currMapItem);
MyMapVM.PointList.RemoveAt(ind);
if (ind == 0)
{
myMap.MapElements.Remove(_lastPolyline);
MyMapVM.PointList.Clear();
MyMapVM.IsRouting = false;
return;
}
DrawPolyline();
if (ind != MyMapVM.PointList.Count)
{
double delta = MyMapVM.PointList[ind].CurrentLenght - MyMapVM.PointList[ind - 1].CurrentLenght -
PointOfCustomRoute.GetDistance(MyMapVM.PointList[ind], MyMapVM.PointList[ind - 1]);
for (int i = ind; i < MyMapVM.PointList.Count; i++)
{
MyMapVM.PointList[i].CurrentLenght -= delta;
}
}
}
}
public static double GetDistance(PointOfCustomRoute p1, PointOfCustomRoute p2)
{
//Y=atan{sqrt(a+(b-c)^2)/(d+e)}
double lat1 = p1.Location.Position.Latitude * Math.PI / 180;
double long1 = p1.Location.Position.Longitude * Math.PI / 180;
double lat2 = p2.Location.Position.Latitude * Math.PI / 180;
double long2 = p2.Location.Position.Longitude * Math.PI / 180;
double a = Math.Pow(Math.Cos(lat2) * Math.Sin(long2 - long1), 2);
double b = Math.Cos(lat1) * Math.Sin(lat2);
double c = Math.Sin(lat1) * Math.Cos(lat2) * Math.Cos(long2 - long1);
double d = Math.Sin(lat1) * Math.Sin(lat2);
double e = Math.Cos(lat1) * Math.Cos(lat2) * Math.Cos(long2 - long1);
double Y = Math.Atan(Math.Sqrt(a + Math.Pow(b - c, 2)) / (d + e));
return(RADIUS_EARTH * Y / 1000);
}
private void myMap_MapTapped(MapControl sender, MapInputEventArgs args)
{
if (MyMapVM.IsRouting)
{
Debug.WriteLine(String.Format(args.Location.Position.Latitude + " " + args.Location.Position.Longitude));
PointOfCustomRoute currPoint = new PointOfCustomRoute()
{
Location = args.Location,
NormalizedAnchorPoint = new Point(0.5, 0.93)
};
if (MyMapVM.PointList.Count != 0)
{
currPoint.CurrentLenght = MyMapVM.PointList.Last().CurrentLenght +
PointOfCustomRoute.GetDistance(MyMapVM.PointList.Last(), currPoint);
}
MyMapVM.PointList.Add(currPoint);
DrawPolyline();
}
}
