public PathEdge Splice(PathEdge other)
{
IAtom intersection = GetIntersection(other.atoms);
List <IAtom> newAtoms = new List <IAtom>(atoms);
if (atoms[0] == intersection)
{
newAtoms.Reverse();
}
if (other.atoms[0] == intersection)
{
for (int i = 1; i < other.atoms.Count; i++)
{
newAtoms.Add(other.atoms[i]);
}
}
else
{
for (int i = other.atoms.Count - 2; i >= 0; i--)
{
newAtoms.Add(other.atoms[i]);
}
}
if (!IsRealPath(newAtoms))
{
return(null);
}
return(new PathEdge(newAtoms));
}
private static IEnumerable <PathEdge> SpliceEdges(List <PathEdge> edges)
{
for (int i = 0; i < edges.Count; i++)
{
for (int j = i + 1; j < edges.Count; j++)
{
PathEdge splice = edges[j].Splice(edges[i]);
if (splice != null)
{
yield return(splice);
}
}
}
yield break;
}