/// <summary>
/// Iterate all components of the vertexId.
/// </summary>
/// <param name="tree"> The MTG. </param>
/// <param name="vertexId"> The vertex from which the iteration begins. </param>
/// <returns> Iterator on components of the MTG starting from a vertex. </returns>
public IEnumerable <int> MtgIterator(mtg tree, int vertexId)
{
Dictionary <int, bool> visited = new Dictionary <int, bool>();
visited.Add(vertexId, true);
int complexId = vertexId;
int maxScale = tree.MaxScale();
yield return(vertexId);
foreach (int vertex in tree.ComponentRootsAtScale(complexId, maxScale))
{
foreach (int vid in IterativePreOrder(tree, vertex))
{
foreach (int node in ScaleIterator(tree, vid, complexId, visited))
{
yield return(node);
}
}
}
}
