private void RecalculateLength(RouteDTO route)
{
var length = 0d;
foreach (var s in DistanceHelpers.SplitFeatureIntoLineSegments(route.Data.Coordinates))
{
length += DistanceHelpers.DistanceBetweenCoordinates(s.Item1, s.Item2);
}
route.Info.Length = Math.Round(length, 2);
}
public static RouteDTO PathToRoute(List <RouteFeature> path, PointPosition startPosition, PointPosition endPosition)
{
var sortedFeatures = SortFeatures(path, startPosition, endPosition);
var routeDto = new RouteDTO
{
Data = new RouteDataDTO
{
Type = "LineString",
Coordinates = sortedFeatures.SelectMany(x =>
x.Data.Coordinates.Select(y => new[] { y.Longitude, y.Latitude })
.ToArray()).ToArray()
},
Info = new RouteInfoDTO
{
Length = 0
//Length = Math.Round(path.Sum(x => (double) x.Data.Properties["lenght"]), 2)
//TODO fix
}
};
var routeJson = routeDto.ToGeoJson();
var firstFeature = sortedFeatures.First();
var lastFeature = sortedFeatures.Last();
var firstFeatureJson = FeaturesToGeojsonHelper.ToGeojson(new [] { firstFeature.Data.Coordinates.Select(x => x.ToDoubleArray()).ToArray() });
var lastFeatureJson = FeaturesToGeojsonHelper.ToGeojson(new [] { lastFeature.Data.Coordinates.Select(x => x.ToDoubleArray()).ToArray() });
//var distanceToStartFeature = DistanceHelpers.CalcualteDistanceToFeature(
// firstFeature.Data.Coordinates.Select(x => x.ToDoubleArray()).ToArray(), startPosition.ToDoubleArray());
var projectionOnStartFeature = DistanceHelpers.GetProjectionOnFeature(
firstFeature.Data.Coordinates.Select(x => x.ToDoubleArray()).ToArray(),
startPosition.ToDoubleArray());
var distanceToStartProjection =
DistanceHelpers.DistanceBetweenCoordinates(projectionOnStartFeature.Item2,
startPosition.ToDoubleArray());
if ((
distanceToStartProjection != DistanceHelpers.DistanceBetweenCoordinates(startPosition.ToDoubleArray(),
firstFeature.Data.Coordinates.First().ToDoubleArray()) &&
distanceToStartProjection != DistanceHelpers.DistanceBetweenCoordinates(startPosition.ToDoubleArray(),
firstFeature.Data.Coordinates.Last().ToDoubleArray())
) ||
(distanceToStartProjection == DistanceHelpers.DistanceBetweenCoordinates(
startPosition.ToDoubleArray(),
firstFeature.Data.Coordinates.Last().ToDoubleArray()))
)
{
//var projectionResult = DistanceHelpers.GetProjectionOnFeature(
// firstFeature.Data.Coordinates.Select(x => x.ToDoubleArray()).ToArray(),
// startPosition.ToDoubleArray());
var result = new List <double[]> {
projectionOnStartFeature.Item2
};
var index = Array.FindIndex(routeDto.Data.Coordinates,
x => x.SequenceEqual(projectionOnStartFeature.Item1.Item1));
result.AddRange(routeDto.Data.Coordinates.Skip(index + 1));
routeDto.Data.Coordinates = result.ToArray();
}
var projectionOnEndFeature = DistanceHelpers.GetProjectionOnFeature(
lastFeature.Data.Coordinates.Select(x => x.ToDoubleArray()).ToArray(),
endPosition.ToDoubleArray());
var distanceToEndProjection =
DistanceHelpers.DistanceBetweenCoordinates(projectionOnEndFeature.Item2,
endPosition.ToDoubleArray());
if ((distanceToEndProjection != DistanceHelpers.DistanceBetweenCoordinates(endPosition.ToDoubleArray(),
lastFeature.Data.Coordinates.First().ToDoubleArray()) &&
distanceToEndProjection != DistanceHelpers.DistanceBetweenCoordinates(endPosition.ToDoubleArray(),
lastFeature.Data.Coordinates.Last().ToDoubleArray()))
||
(distanceToEndProjection == DistanceHelpers.DistanceBetweenCoordinates(
endPosition.ToDoubleArray(),
lastFeature.Data.Coordinates.First().ToDoubleArray()))
)
{
//var projectionResult = DistanceHelpers.GetProjectionOnFeature(
// lastFeature.Data.Coordinates.Select(x => x.ToDoubleArray()).ToArray(), endPosition.ToDoubleArray());
var index = Array.FindIndex(routeDto.Data.Coordinates,
x => x.SequenceEqual(projectionOnEndFeature.Item1.Item2));
var result = routeDto.Data.Coordinates.Take(index).ToList();
result.Add(projectionOnEndFeature.Item2);
routeDto.Data.Coordinates = result.ToArray();
}
return(routeDto);
}