/// <summary>
/// Gets the edge represented by the given directed id.
/// </summary>
public static RoutingEdge GetEdge(this RoutingNetwork graph, long directedEdgeId)
{
if (directedEdgeId == 0)
{
throw new ArgumentOutOfRangeException("directedEdgeId");
}
uint edgeId;
if (directedEdgeId > 0)
{
edgeId = (uint)directedEdgeId - 1;
}
else
{
edgeId = (uint)((-directedEdgeId) - 1);
}
return(graph.GetEdge(edgeId));
}
/// <summary>
/// Merges vertex2 into vertex1.
/// </summary>
public static void MergeVertices(this RoutingNetwork network, uint vertex1, uint vertex2)
{
// get and save edge for vertex2.
var vertex2Edges = new List <RoutingEdge>(network.GetEdgeEnumerator(vertex2));
// remove edges.
network.RemoveEdges(vertex2);
// add edges.
for (var i = 0; i < vertex2Edges.Count; i++)
{
if (!vertex2Edges[i].DataInverted)
{ // not inverted, add as vertex1 -> to.
network.AddEdge(vertex1, vertex2Edges[i].To, vertex2Edges[i].Data, vertex2Edges[i].Shape);
}
else
{ // inverted, add as to -> vertex1.
network.AddEdge(vertex2Edges[i].To, vertex1, vertex2Edges[i].Data, vertex2Edges[i].Shape);
}
}
}
/// <summary>
/// Gets the shape points including the two vertices.
/// </summary>
public static List <Coordinate> GetShape(this RoutingNetwork graph, RoutingEdge edge)
{
var points = new List <Coordinate>();
points.Add(graph.GetVertex(edge.From));
var shape = edge.Shape;
if (shape != null)
{
if (edge.DataInverted)
{
shape = shape.Reverse();
}
var shapeEnumerator = shape.GetEnumerator();
shapeEnumerator.Reset();
while (shapeEnumerator.MoveNext())
{
points.Add(shapeEnumerator.Current);
}
}
points.Add(graph.GetVertex(edge.To));
return(points);
}
/// <summary>
/// Gets all edges starting at this edges.
/// </summary>
public static List <RoutingEdge> GetEdges(this RoutingNetwork network, uint vertex)
{
return(new List <RoutingEdge>(network.GetEdgeEnumerator(vertex)));
}
/// <summary>
/// Adds a new edge.
/// </summary>
public static uint AddEdge(this RoutingNetwork network, uint vertex1, uint vertex2, Edges.EdgeData data,
params Coordinate[] shape)
{
return(network.AddEdge(vertex1, vertex2, data, new ShapeEnumerable(shape)));
}
/// <summary>
/// Returns the location on the network.
/// </summary>
public static Coordinate LocationOnNetwork(this RoutingNetwork network, uint edgeId, ushort offset)
{
return(network.GeometricGraph.LocationOnGraph(edgeId, offset));
}
internal EdgeEnumerator(RoutingNetwork network, GeometricGraph.EdgeEnumerator enumerator)
{
_network = network;
_enumerator = enumerator;
}
