protected override async Task <List <Coordinate>?> ExecuteRequestAsync(
List <Coordinate> coordinates,
CancellationToken cancellationToken)
{
var request = new SnapToRoadRequest
{
BingMapsKey = APIKey,
IncludeSpeedLimit = false,
IncludeTruckSpeedLimit = false,
Interpolate = true,
SpeedUnit = SpeedUnitType.MPH,
TravelMode = TravelModeType.Driving,
Points = coordinates.Select(p => p.ToBingMapsCoordinate()).ToList()
};
var result = await request.Execute();
if (result.StatusCode != 200)
{
Logger?.Error <string>("Snap to road request failed, message was '{0}'", result.StatusDescription);
return(null);
}
var retVal = new List <Coordinate>();
foreach (var resourceSet in result.ResourceSets)
{
var snapResponses = resourceSet.Resources
.Where(r => r is SnapToRoadResponse)
.Cast <SnapToRoadResponse>()
.ToList();
if (!snapResponses.Any())
{
Logger?.Error("Snap to request did not return usable results");
return(null);
}
foreach (var snapResponse in snapResponses)
{
retVal.AddRange(snapResponse.SnappedPoints
.Select(p => new Coordinate(p))
);
}
}
return(retVal);
}
/// <summary>
/// Demostrates how to make an Snap to Road Request.
/// </summary>
private void SnapToRoadBtn_Clicked(object sender, RoutedEventArgs e)
{
var r = new SnapToRoadRequest()
{
Points = new List <Coordinate>()
{
new Coordinate(47.590868, -122.336729),
new Coordinate(47.601604, -122.336042),
new Coordinate(47.60849, -122.34241),
new Coordinate(47.610568, -122.345064)
},
IncludeSpeedLimit = true,
IncludeTruckSpeedLimit = true,
Interpolate = true,
SpeedUnit = SpeedUnitType.MPH,
TravelMode = TravelModeType.Driving,
BingMapsKey = BingMapsKey
};
ProcessRequest(r);
}
