/// <summary>
/// Gets a feature representing the edge with the given id.
/// </summary>
public static Feature GetFeatureForEdge(this RouterDb routerDb, uint edgeId)
{
var edge = routerDb.Network.GetEdge(edgeId);
var edgeAttributes = new Itinero.Attributes.AttributeCollection(routerDb.EdgeMeta.Get(edge.Data.MetaId));
edgeAttributes.AddOrReplace(routerDb.EdgeProfiles.Get(edge.Data.Profile));
var geometry = new LineString(routerDb.Network.GetShape(edge).ToCoordinatesArray());
var attributes = edgeAttributes.ToAttributesTable();
attributes.AddAttribute("id", edge.Id.ToInvariantString());
attributes.AddAttribute("distance", edge.Data.Distance.ToInvariantString());
return(new Feature(geometry, attributes));
}
/// <summary>
/// Gets all features inside the given bounding box.
/// </summary>
public static FeatureCollection GetFeaturesIn(this RouterDb db, float minLatitude, float minLongitude,
float maxLatitude, float maxLongitude, bool includeEdges = true, bool includeVertices = true)
{
var features = new FeatureCollection();
var vertices = Itinero.Algorithms.Search.Hilbert.HilbertExtensions.Search(db.Network.GeometricGraph, minLatitude, minLongitude,
maxLatitude, maxLongitude);
var edges = new HashSet <long>();
var edgeEnumerator = db.Network.GetEdgeEnumerator();
foreach (var vertex in vertices)
{
if (includeVertices)
{
features.Add(db.GetFeatureForVertex(vertex));
}
if (includeEdges)
{
edgeEnumerator.MoveTo(vertex);
edgeEnumerator.Reset();
while (edgeEnumerator.MoveNext())
{
if (edges.Contains(edgeEnumerator.Id))
{
continue;
}
edges.Add(edgeEnumerator.Id);
var edgeAttributes = new Itinero.Attributes.AttributeCollection(db.EdgeMeta.Get(edgeEnumerator.Data.MetaId));
edgeAttributes.AddOrReplace(db.EdgeProfiles.Get(edgeEnumerator.Data.Profile));
var geometry = new LineString(db.Network.GetShape(edgeEnumerator.Current).ToCoordinatesArray());
var attributes = edgeAttributes.ToAttributesTable();
attributes.AddAttribute("id", edgeEnumerator.Id.ToInvariantString());
attributes.AddAttribute("distance", edgeEnumerator.Data.Distance.ToInvariantString());
features.Add(new Feature(geometry,
attributes));
}
}
}
return(features);
}
/// <summary>
/// Gets all features.
/// </summary>
public static FeatureCollection GetFeatures(this RouterDb db)
{
var network = db.Network;
var features = new FeatureCollection();
var edges = new HashSet <long>();
var edgeEnumerator = network.GetEdgeEnumerator();
for (uint vertex = 0; vertex < network.VertexCount; vertex++)
{
var vertexLocation = network.GeometricGraph.GetVertex(vertex);
var attributes = new AttributesTable();
attributes.AddAttribute("id", vertex.ToInvariantString());
features.Add(new Feature(new Point(vertexLocation.ToCoordinate()),
attributes));
edgeEnumerator.MoveTo(vertex);
edgeEnumerator.Reset();
while (edgeEnumerator.MoveNext())
{
if (edges.Contains(edgeEnumerator.Id))
{
continue;
}
edges.Add(edgeEnumerator.Id);
var edgeAttributes = new Itinero.Attributes.AttributeCollection(db.EdgeMeta.Get(edgeEnumerator.Data.MetaId));
edgeAttributes.AddOrReplace(db.EdgeProfiles.Get(edgeEnumerator.Data.Profile));
var geometry = new LineString(network.GetShape(edgeEnumerator.Current).ToCoordinatesArray());
attributes = edgeAttributes.ToAttributesTable();
attributes.AddAttribute("id", edgeEnumerator.Id.ToInvariantString());
attributes.AddAttribute("distance", edgeEnumerator.Data.Distance.ToInvariantString());
var tags = db.GetProfileAndMeta(edgeEnumerator.Data.Profile, edgeEnumerator.Data.MetaId);
features.Add(new Feature(geometry,
attributes));
}
}
return(features);
}
