private async Task <BingRouteResource> ComputeRoute(BingGeocodePoint start, BingGeocodePoint end)
{
RestRequest request = new RestRequest($"Routes/Driving", Method.GET);
request.AddParameter("wp.0", $"{start.coordinates[0]},{start.coordinates[1]}", ParameterType.QueryString);
request.AddParameter("wp.1", $"{end.coordinates[0]},{end.coordinates[1]}", ParameterType.QueryString);
request.AddParameter("routeAttributes", "routePath", ParameterType.QueryString);
request.AddParameter("distanceUnit", "mi", ParameterType.QueryString);
request.AddParameter("tl", _config.BingTolerance.ToString(), ParameterType.QueryString);
request.AddParameter("key", _config.BingKey, ParameterType.QueryString);
var result = await _bingClient.ExecuteTaskAsync <string>(request);
if (!result.IsSuccessful)
{
throw new Exception($"Failed to find address with error {result.StatusCode}");
}
string json = result.Data;
JObject jobj = JsonConvert.DeserializeObject <JObject>(json);
BingRouteResult obj = jobj.ToObject <BingRouteResult>();
BingRouteResource res = obj.resourceSets[0].resources[0];
return(res);
}
void CalculateRoute(BingTravelMode mode)
{
if (isBusy)
{
return;
}
isBusy = true;
var waypoints = new[] { new RouteWaypoint(StartingAddress, StartingLocation), new RouteWaypoint(DestinationAddress, DestinationLocation) };
var unit = DistanceMeasureUnit.Mile;
var optimization = BingRouteOptimization.MinimizeTime;
RouteService.CalculateRouteAsync(waypoints, unit, optimization, mode).ContinueWith(t => {
if (t.Result.ResultCode == RequestResultCode.Success && t.Result.RouteResults.Count > 0)
{
BingRouteResult route = t.Result.RouteResults.First();
if (route.Legs.Count > 0)
{
BingRouteLeg leg = route.Legs.First();
IsWalkingAvailable = (leg.Distance > maximumWalkingDistance) ? false : true;
GeoPoint startLocation = leg.Itinerary.First().Location;
GeoPoint endLocation = leg.Itinerary.Last().Location;
CenterPoint = new GeoPoint((startLocation.Latitude + endLocation.Latitude) / 2, (startLocation.Longitude + endLocation.Longitude) / 2);
ActiveItinerary = leg.Itinerary.Select(item => new ItineraryItemViewModel(item)).ToList();
}
}
isBusy = false;
}, TaskScheduler.FromCurrentSynchronizationContext());
}
void ExtractItineraryItems(BingRouteResult result)
{
ItineraryItems.Clear();
foreach (BingRouteLeg leg in result.Legs)
{
foreach (BingItineraryItem item in leg.Itinerary)
{
ItineraryItems.Add(item);
}
}
}
public void ProcessRouteResult(BingRouteResult result)
{
if (result != null)
{
ExtractItineraryItems(result);
routePath = result.RoutePath;
}
else
{
routePath = null;
}
CalculatePathDistance();
}