public IEnumerable <GdbObjectReference> GetIncidentEdges(GdbObjectReference nodeFeatureRef)
{
int nodeIndex;
if (!NodeIndexesByNodeReference.TryGetValue(nodeFeatureRef, out nodeIndex))
{
yield break;
}
foreach (GdbObjectReference edgeRef in GetIncidentEdges(nodeIndex))
{
yield return(edgeRef);
}
}
/// <summary>
/// The <see cref="NodeIndexesByNodeReference"/> allows for a correlation of the node
/// feature's GdbObjectReference with the Node.
/// This can be used to include the junction features in a linear network into the graph.
/// </summary>
/// <param name="nodeFeature"></param>
/// <returns>The index of the added node.</returns>
public int AddNodeFeatureRef([NotNull] IFeature nodeFeature)
{
IPoint nodeLocation = (IPoint)nodeFeature.Shape;
int nodeIndex;
if (!TryGetNodeIndex(nodeLocation, out nodeIndex))
{
List <AdjacentNode> adjacentNodes;
nodeIndex = AddNode(nodeLocation, out adjacentNodes);
}
NodeIndexesByNodeReference.Add(new GdbObjectReference(nodeFeature), nodeIndex);
return(nodeIndex);
}
