static void Main(string[] args)
{
// make sure the output is logged to console.
OsmSharp.Logging.Log.Enable();
OsmSharp.Logging.Log.RegisterListener(new OsmSharp.WinForms.UI.Logging.ConsoleTraceListener());
var nwbDump = @"C:\work\via\data\NWB\nwb.dump";
// load data.
OsmSharp.Logging.Log.TraceEvent("Nederlands.Test", OsmSharp.Logging.TraceEventType.Information,
string.Format("Loading {0}...", nwbDump));
var serializer = new LiveEdgeFlatfileSerializer();
IBasicRouterDataSource <LiveEdge> nwbGraph = null;
using (var stream = new FileInfo(nwbDump).OpenRead())
{
nwbGraph = serializer.Deserialize(stream);
}
NWBMapping.BAANSUBSRT = "BST_CODE";
BasicRouter.MaxSettles = 65536;
// create test case.
var testCase = new GeoCoordinate[]
{
new GeoCoordinate(51.95833631000295f, 4.946079254150391f),
new GeoCoordinate(51.94288923910573f, 4.954748153686523f)
};
// create encoder.
var encoder = ReferencedNWBEncoder.CreateBinary(nwbGraph);
// build line location from shortest path.
OsmSharp.Routing.Route route;
var line = encoder.BuildLineLocationFromShortestPath(testCase[0], testCase[1], out route);
var lineJson = line.ToFeatures().ToGeoJson(); // create geojson to view output.
// encode the line location.
var encoded = encoder.Encode(line);
// create decoder.
var decoder = ReferencedNWBDecoder.CreateBinary(nwbGraph);
// decode line location.
var decodedLine = decoder.Decode(encoded);
var decodedLineJson = line.ToFeatures().ToGeoJson(); // create geojson to view output.
}
public void DecodeReferencedPointAlongLineLocation()
{
var delta = 0.0001;
// build the location to decode.
var location = new PointAlongLineLocation();
location.First = new LocationReferencePoint();
location.First.Coordinate = new Coordinate()
{
Latitude = 49.60597, Longitude = 6.12829
};
location.First.DistanceToNext = 92;
location.First.FuntionalRoadClass = FunctionalRoadClass.Frc2;
location.First.FormOfWay = FormOfWay.MultipleCarriageWay;
location.First.LowestFunctionalRoadClassToNext = FunctionalRoadClass.Frc2;
location.First.Bearing = 203;
location.Last = new LocationReferencePoint();
location.Last.Coordinate = new Coordinate()
{
Latitude = 49.60521, Longitude = 6.12779
};
location.Last.DistanceToNext = 10;
location.Last.FuntionalRoadClass = FunctionalRoadClass.Frc2;
location.Last.FormOfWay = FormOfWay.MultipleCarriageWay;
location.Last.Bearing = 23;
location.PositiveOffsetPercentage = (float)((28.0 / 92.0) * 100.0);
location.Orientation = Orientation.NoOrientation;
location.SideOfRoad = SideOfRoad.Left;
// build a graph to decode onto.
var tags = new TagsTableCollectionIndex();
var graphDataSource = new DynamicGraphRouterDataSource <LiveEdge>(tags);
var vertex1 = graphDataSource.AddVertex(49.60597f, 6.12829f);
var vertex2 = graphDataSource.AddVertex(49.60521f, 6.12779f);
graphDataSource.AddEdge(vertex1, vertex2, new LiveEdge()
{
Distance = 10,
Forward = true,
Tags = tags.Add(new TagsCollection(
Tag.Create(NWBMapping.BAANSUBSRT, "VBD"),
Tag.Create(NWBMapping.WEGBEHSRT, "R"),
Tag.Create(NWBMapping.WEGNUMMER, string.Empty),
Tag.Create(NWBMapping.RIJRICHTNG, string.Empty),
Tag.Create(NWBMapping.HECTOLTTR, string.Empty)))
}, null);
graphDataSource.AddEdge(vertex2, vertex1, new LiveEdge()
{
Distance = 10,
Forward = true,
Tags = tags.Add(new TagsCollection(
Tag.Create(NWBMapping.BAANSUBSRT, "VBD"),
Tag.Create(NWBMapping.WEGBEHSRT, "R"),
Tag.Create(NWBMapping.WEGNUMMER, string.Empty),
Tag.Create(NWBMapping.RIJRICHTNG, string.Empty),
Tag.Create(NWBMapping.HECTOLTTR, string.Empty)))
}, null);
// decode the location
var graph = new BasicRouterDataSource <LiveEdge>(graphDataSource);
var decoder = new PointAlongLineDecoder();
var router = new BasicRouter();
var mainDecoder = new ReferencedNWBDecoder(graph, new BinaryDecoder());
var referencedDecoder = new ReferencedPointAlongLineDecoder(mainDecoder, decoder);
var referencedLocation = referencedDecoder.Decode(location);
// confirm result.
Assert.IsNotNull(referencedLocation);
Assert.IsNotNull(referencedLocation.Route.Edges);
Assert.IsNotNull(referencedLocation.Route.Edges[0]);
Assert.AreEqual(vertex1, referencedLocation.Route.Vertices[0]);
Assert.AreEqual(vertex2, referencedLocation.Route.Vertices[1]);
var longitudeReference = (location.Last.Coordinate.Longitude - location.First.Coordinate.Longitude) * (location.PositiveOffsetPercentage.Value / 100.0) + location.First.Coordinate.Longitude;
var latitudeReference = (location.Last.Coordinate.Latitude - location.First.Coordinate.Latitude) * (location.PositiveOffsetPercentage.Value / 100.0) + location.First.Coordinate.Latitude;
Assert.AreEqual(longitudeReference, referencedLocation.Longitude, delta);
Assert.AreEqual(latitudeReference, referencedLocation.Latitude, delta);
}