public static Dictionary <SymmetryType, int> GetSymmetries(this Tableau tableau, NodePair nodePair)
{
return(tableau.Shape.SymmetryTransformations
.Where(symmetry =>
nodePair.Node1.Coordinates == symmetry.Transform(nodePair.Node2.Coordinates) &&
nodePair.Node2.Coordinates == symmetry.Transform(nodePair.Node1.Coordinates))
.GroupBy(symmetry => symmetry.SymmetryType)
.ToDictionary(
group => group.Key,
group => group.Count()));
}
public abstract Func <Step, IEnumerable <byte[]> > GetEquivalentPathsDelegate(NodePair nodePair);