private async void CalculateRouteToDisplay()
{
// Clear map routes
Map.Routes.Clear();
// Get list of all longitude and latitude values from our Stops
List <BasicGeoposition> allLongitudesAndLatitudes = new List <BasicGeoposition>();
foreach (var stop in Stops)
{
allLongitudesAndLatitudes.Add(new BasicGeoposition()
{
Latitude = decimal.ToDouble(stop.Latitude),
Longitude = decimal.ToDouble(stop.Longitude)
});
}
if (allLongitudesAndLatitudes.Count >= 2)
{
var route = await mapService.CalculateRoute(allLongitudesAndLatitudes);
if (route != null)
{
route.RouteColor = Colors.Yellow;
route.OutlineColor = Colors.Black;
Map.Routes.Add(route);
}
SetBounds(route);
}
}
/// <summary>
/// This function takes in a list of geopositions, and tells the map
/// service to create a route using this list. Existing routes on the
/// map are cleared.
/// </summary>
/// <param name="stopLocations"></param>
private async void ReDrawRoute(List <BasicGeoposition> stopLocations)
{
// Clear routes from Map
Map.Routes.Clear();
var route = await mapService.CalculateRoute(stopLocations);
if (route != null)
{
route.RouteColor = Colors.Yellow;
route.OutlineColor = Colors.Black;
Map.Routes.Add(route);
}
// Set the view of the map to encompass all of the route
RetrieveBoundingBox(route.Route.BoundingBox);
}