Exemplo n.º 1
0
        public static (double, BidirectionalGraph <string, EquatableEdge <string> >) Get(UndirectedGraph <int, Edge <int> > graph)
        {
            var tsp = new tsp();

            foreach (var v in graph.Vertices)
            {
                tsp.AddVertex(v);
            }
            foreach (var e in graph.Edges)
            {
                tsp.AddUndirectedEdge(e.Source, e.Target, 1.0);
            }

            var algorithm = new TSP <string, EquatableEdge <string>, BidirectionalGraph <string, EquatableEdge <string> > >(tsp.Graph, tsp.GetWeightsFunc());

            algorithm.Compute();
            return(algorithm.BestCost, algorithm.ResultPath);
        }
Exemplo n.º 2
0
        public static (double, BidirectionalGraph <string, TaggedEdge <string, string> >) Get(UndirectedGraph <string, TaggedEdge <string, string> > graph)
        {
            var tsp = new tsp();

            foreach (var v in graph.Vertices)
            {
                tsp.AddVertex(v);
            }
            foreach (var e in graph.Edges)
            {
                tsp.AddUndirectedEdge(e.Source, e.Target, double.Parse(e.Tag));
            }

            var weightFunc = tsp.GetWeightsFunc();
            var algorithm  = new TSP <string, EquatableEdge <string>, BidirectionalGraph <string, EquatableEdge <string> > >(tsp.Graph, weightFunc);

            algorithm.Compute();

            var path = algorithm.ResultPath;

            if (path != null)
            {
                var results = new results();
                foreach (var v in path.Vertices)
                {
                    results.AddVertex(v);
                }
                foreach (var e in path.Edges)
                {
                    results.AddDirectedEdge(e.Source, e.Target, weightFunc(e));
                }
                return(algorithm.BestCost, results.Graph);
            }
            else
            {
                return(algorithm.BestCost, null);
            }
        }