protected override void Do()
{
edges = stitcher.FindClosestEdgePair(cycles[0], cycles[1]);
}
private Directions JoinTwoCycles(Directions firstCycle, Directions secondCycle, EdgePair edges)
{
var firstRoute = firstCycle.GetRoute(edges.FirstCycleEdge);
var secondRoute = secondCycle.GetRoute(edges.SecondCycleEdge);
var closest = graph.PickClosestPoint(firstRoute.From, edges.SecondCycleEdge.Vertices);
firstCycle.AddRoute(firstRoute.From, closest);
var otherEndOfSecondRoute = secondRoute.From.Equals(secondRoute.To) ? secondRoute.To : secondRoute.Points.Single(p => !p.Equals(closest));
firstCycle.AddRoute(otherEndOfSecondRoute, firstRoute.To);
firstCycle.Merge(secondCycle);
firstCycle.RemoveRoute(firstRoute);
firstCycle.RemoveRoute(secondRoute);
return firstCycle;
}