/// <summary>
/// Converts this line location to features.
/// </summary>
public static FeatureCollection ToFeatures(this ReferencedLine line, RouterDb routerDb)
{
var featureCollection = new FeatureCollection();
// build coordinates list.
var coordinates = new List <Itinero.LocalGeo.Coordinate>();
for (var i = 0; i < line.Edges.Length; i++)
{
var edge = routerDb.Network.GetEdge(line.Edges[i]);
List <Itinero.LocalGeo.Coordinate> shape = null;
if (i == 0 && line.Vertices[0] == Itinero.Constants.NO_VERTEX)
{ // shape from startlocation -> vertex1.
if (line.Edges.Length == 1)
{ // only 1 edge, shape from startLocation -> endLocation.
shape = line.StartLocation.ShapePointsTo(routerDb, line.EndLocation);
shape.Insert(0, line.StartLocation.LocationOnNetwork(routerDb));
shape.Add(line.EndLocation.LocationOnNetwork(routerDb));
}
else
{ // just get shape to first vertex.
shape = line.StartLocation.ShapePointsTo(routerDb, line.Vertices[1]);
shape.Insert(0, line.StartLocation.LocationOnNetwork(routerDb));
shape.Add(routerDb.Network.GetVertex(line.Vertices[1]));
}
}
else if (i == line.Edges.Length - 1 && line.Vertices[line.Vertices.Length - 1] == Itinero.Constants.NO_VERTEX)
{ // shape from second last vertex -> endlocation.
shape = line.EndLocation.ShapePointsTo(routerDb, line.Vertices[line.Vertices.Length - 2]);
shape.Reverse();
shape.Insert(0, routerDb.Network.GetVertex(line.Vertices[line.Vertices.Length - 2]));
shape.Add(line.EndLocation.LocationOnNetwork(routerDb));
}
else
{ // regular 2 vertices and edge.
shape = routerDb.Network.GetShape(routerDb.Network.GetEdge(line.Edges[i]));
if (line.Edges[i] < 0)
{
shape.Reverse();
}
}
if (shape != null)
{
if (coordinates.Count > 0)
{
coordinates.RemoveAt(coordinates.Count - 1);
}
for (var j = 0; j < shape.Count; j++)
{
coordinates.Add(shape[j]);
}
}
var tags = new AttributeCollection();
tags.AddOrReplace(routerDb.EdgeProfiles.Get(edge.Data.Profile));
tags.AddOrReplace(routerDb.EdgeMeta.Get(edge.Data.MetaId));
tags.AddOrReplace("edge_id", edge.IdDirected().ToInvariantString());
var table = tags.ToAttributes();
featureCollection.Add(new Feature(new LineString(shape.ToCoordinates().ToArray()), table));
coordinates.Clear();
}
var positiveLocation = line.GetPositiveOffsetLocation(routerDb).ToGeoAPICoordinate();
featureCollection.Add(new Feature(new Point(positiveLocation), (new AttributeCollection(new Attribute("type", "positive_offset_location"))).ToAttributes()));
var negativeLocation = line.GetNegativeOffsetLocation(routerDb).ToGeoAPICoordinate();
featureCollection.Add(new Feature(new Point(negativeLocation), (new AttributeCollection(new Attribute("type", "negative_offset_location"))).ToAttributes()));
return(featureCollection);
}