public void AddEdge(TVertex origin, TVertex destination, TEdge edge)
{
if (origin == null)
{
throw new ArgumentNullException(nameof(origin));
}
if (destination == null)
{
throw new ArgumentNullException(nameof(destination));
}
if (edge == null)
{
throw new ArgumentNullException(nameof(edge));
}
if (!VertexConnectionCollections.ContainsKey(origin))
{
AddVertex(origin);
}
if (!VertexConnectionCollections.ContainsKey(destination))
{
AddVertex(destination);
}
VertexConnectionCollections[origin].AddSuccessor(destination, edge);
VertexConnectionCollections[destination].AddPredecessor(origin, edge);
}
public IEnumerable <TVertex> SuccessorVertices(TVertex vertex)
{
if (vertex == null)
{
throw new ArgumentNullException(nameof(vertex));
}
if (!VertexConnectionCollections.ContainsKey(vertex))
{
throw new ArgumentException();
}
return(VertexConnectionCollections[vertex].SuccessorVertices);
}
public int Outdegree(TVertex vertex)
{
if (vertex == null)
{
throw new ArgumentNullException(nameof(vertex));
}
if (!VertexConnectionCollections.ContainsKey(vertex))
{
throw new ArgumentException();
}
return(VertexConnectionCollections[vertex].Outdegree);
}
public IEnumerable <IUnweightedEndpoint <TVertex> > AdjacentEndpoints(TVertex vertex)
{
if (vertex == null)
{
throw new ArgumentNullException(nameof(vertex));
}
if (!VertexConnectionCollections.ContainsKey(vertex))
{
throw new ArgumentException();
}
return(VertexConnectionCollections[vertex].AdjacentEndpoints);
}
public IEnumerable <TEdge> IncidentEdges(TVertex vertex)
{
if (vertex == null)
{
throw new ArgumentNullException(nameof(vertex));
}
if (!VertexConnectionCollections.ContainsKey(vertex))
{
throw new ArgumentException();
}
return(VertexConnectionCollections[vertex].IncidentEdges);
}
public IEnumerable <IWeightedEndpoint <TVertex, TEdge> > SuccessorEndpoints(TVertex vertex)
{
if (vertex == null)
{
throw new ArgumentNullException(nameof(vertex));
}
if (!VertexConnectionCollections.ContainsKey(vertex))
{
throw new ArgumentException();
}
return(VertexConnectionCollections[vertex].SuccessorEndpoints);
}
public IEnumerable <TEdge> IncidentEdgesConnecting(TVertex origin, TVertex destination)
{
if (origin == null)
{
throw new ArgumentNullException(nameof(origin));
}
if (destination == null)
{
throw new ArgumentNullException(nameof(destination));
}
if (!VertexConnectionCollections.ContainsKey(origin))
{
throw new ArgumentException();
}
if (!VertexConnectionCollections.ContainsKey(destination))
{
throw new ArgumentException();
}
return(VertexConnectionCollections[origin].IncidentEdgesConnecting(destination));
}