public KKLayoutAlgorithm(Graph visitedGraph, IDictionary <Vertex, Point> vertexPositions,
                          KKLayoutParameters oldParameters)
     : base(visitedGraph, vertexPositions, oldParameters)
 {
 }
 public KKLayoutAlgorithm(Graph visitedGraph, KKLayoutParameters oldParameters)
     : this(visitedGraph, null, oldParameters)
 {
 }