public static void TestCase3x3() { // 1. Create a graph CGraph mgraph = CGraph.CreateGraph(); CGraphNode x1 = mgraph.CreateGraphNode <CGraphNode>("1"); CGraphNode x2 = mgraph.CreateGraphNode <CGraphNode>("2"); CGraphNode x3 = mgraph.CreateGraphNode <CGraphNode>("3"); CGraphNode x4 = mgraph.CreateGraphNode <CGraphNode>("4"); CGraphNode x5 = mgraph.CreateGraphNode <CGraphNode>("5"); CGraphNode x6 = mgraph.CreateGraphNode <CGraphNode>("6"); CGraphNode x7 = mgraph.CreateGraphNode <CGraphNode>("7"); CGraphNode x8 = mgraph.CreateGraphNode <CGraphNode>("8"); CGraphNode x9 = mgraph.CreateGraphNode <CGraphNode>("9"); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(x1, x2, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(x2, x1, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(x1, x5, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(x5, x1, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(x1, x4, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(x4, x1, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(x2, x4, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(x4, x2, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(x2, x3, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(x3, x2, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(x2, x6, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(x6, x2, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(x2, x5, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(x5, x2, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(x3, x5, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(x5, x3, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(x3, x6, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(x6, x3, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(x4, x5, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(x5, x4, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(x4, x7, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(x7, x4, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(x4, x8, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(x8, x4, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(x5, x6, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(x6, x5, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(x5, x7, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(x7, x5, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(x5, x8, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(x8, x5, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(x5, x9, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(x9, x5, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(x6, x8, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(x8, x6, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(x6, x9, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(x9, x6, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(x7, x8, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(x8, x7, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(x8, x9, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(x9, x8, GraphType.GT_DIRECTED); // 2. Associate weights with the edges of the graph CGraphQueryInfo <int, int, int> weights = new CGraphQueryInfo <int, int, int>(mgraph, 255); weights.CreateInfo(x1, x2, 1); weights.CreateInfo(x2, x1, 1); weights.CreateInfo(x1, x5, 1); weights.CreateInfo(x5, x1, 1); weights.CreateInfo(x1, x4, 1); weights.CreateInfo(x4, x1, 1); weights.CreateInfo(x2, x4, 3); weights.CreateInfo(x4, x2, 3); weights.CreateInfo(x2, x3, 1); weights.CreateInfo(x3, x2, 1); weights.CreateInfo(x2, x6, 3); weights.CreateInfo(x6, x2, 3); weights.CreateInfo(x2, x5, 1); weights.CreateInfo(x5, x2, 1); weights.CreateInfo(x3, x5, 3); weights.CreateInfo(x5, x3, 3); weights.CreateInfo(x3, x6, 1); weights.CreateInfo(x6, x3, 1); weights.CreateInfo(x4, x5, 1); weights.CreateInfo(x5, x4, 1); weights.CreateInfo(x4, x7, 1); weights.CreateInfo(x7, x4, 1); weights.CreateInfo(x4, x8, 3); weights.CreateInfo(x8, x4, 3); weights.CreateInfo(x5, x6, 1); weights.CreateInfo(x6, x5, 1); weights.CreateInfo(x5, x7, 3); weights.CreateInfo(x7, x5, 3); weights.CreateInfo(x5, x8, 1); weights.CreateInfo(x8, x5, 1); weights.CreateInfo(x5, x9, 3); weights.CreateInfo(x9, x5, 3); weights.CreateInfo(x6, x8, 3); weights.CreateInfo(x8, x6, 3); weights.CreateInfo(x6, x9, 1); weights.CreateInfo(x9, x6, 1); weights.CreateInfo(x7, x8, 1); weights.CreateInfo(x8, x7, 1); weights.CreateInfo(x8, x9, 1); weights.CreateInfo(x9, x8, 1); // 3. Run the BellmanFord algorithm BellmanFord bl = new BellmanFord(mgraph, x1, 255); bl.FindAllPairsShortestPaths(); // 4. Print Paths BellmanFordQueryInfo shortestPath = new BellmanFordQueryInfo(mgraph, bl); CIt_GraphNodes i = new CIt_GraphNodes(mgraph); CIt_GraphNodes j = new CIt_GraphNodes(mgraph); Dictionary <CGraphNode, Dictionary <CGraphNode, Path> > paths = shortestPath.ShortestPaths(); for (i.Begin(); !i.End(); i.Next()) { Console.WriteLine(); for (j.Begin(); !j.End(); j.Next()) { Console.WriteLine(); if (i.M_CurrentItem != j.M_CurrentItem) { Console.Write(paths[i.M_CurrentItem][j.M_CurrentItem]); } } } }
public static void BookExampleTestcase() { // 1. Create a graph CGraph mgraph = CGraph.CreateGraph(); CGraphNode x = mgraph.CreateGraphNode <CGraphNode>("x"); CGraphNode y = mgraph.CreateGraphNode <CGraphNode>("y"); CGraphNode z = mgraph.CreateGraphNode <CGraphNode>("z"); CGraphNode t = mgraph.CreateGraphNode <CGraphNode>("t"); CGraphNode s = mgraph.CreateGraphNode <CGraphNode>("s"); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(t, x, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(t, y, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(t, z, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(x, t, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(y, x, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(y, z, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(z, x, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(z, s, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(s, t, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(s, y, GraphType.GT_DIRECTED); // 2. Associate weights with the edges of the graph CGraphQueryInfo <int, int, int> weights = new CGraphQueryInfo <int, int, int>(mgraph, 255); weights.CreateInfo(y, x, -3); weights.CreateInfo(x, t, -2); weights.CreateInfo(t, x, 5); weights.CreateInfo(z, x, 7); weights.CreateInfo(y, z, 9); weights.CreateInfo(t, y, 8); weights.CreateInfo(t, z, -4); weights.CreateInfo(s, t, 6); weights.CreateInfo(s, y, 7); weights.CreateInfo(z, s, 2); // 3. Run the BellmanFord algorithm BellmanFord bl = new BellmanFord(mgraph, s, 255); bl.FindAllPairsShortestPaths(); // 4. Print Paths CGraphQueryInfo <int, int, Dictionary <CGraphNode, Dictionary <CGraphNode, Path> > > shortestPath = new CGraphQueryInfo <int, int, Dictionary <CGraphNode, Dictionary <CGraphNode, Path> > >(mgraph, bl); CIt_GraphNodes i = new CIt_GraphNodes(mgraph); CIt_GraphNodes j = new CIt_GraphNodes(mgraph); Dictionary <CGraphNode, Dictionary <CGraphNode, Path> > paths = (Dictionary <CGraphNode, Dictionary <CGraphNode, Path> >)(shortestPath.Info()); for (i.Begin(); !i.End(); i.Next()) { Console.WriteLine(); for (j.Begin(); !j.End(); j.Next()) { Console.WriteLine(); if (i.M_CurrentItem != j.M_CurrentItem) { Console.Write(paths[i.M_CurrentItem][j.M_CurrentItem]); } } } }
static void Main(string[] args) { // 1. Create a graph CGraph mgraph = CGraph.CreateGraph(); CGraphNode x = mgraph.CreateGraphNode <CGraphNode>("x"); CGraphNode y = mgraph.CreateGraphNode <CGraphNode>("y"); CGraphNode z = mgraph.CreateGraphNode <CGraphNode>("z"); CGraphNode t = mgraph.CreateGraphNode <CGraphNode>("t"); CGraphNode s = mgraph.CreateGraphNode <CGraphNode>("s"); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(t, x, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(t, y, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(t, z, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(x, t, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(y, x, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(y, z, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(z, x, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(z, s, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(s, t, GraphType.GT_DIRECTED); mgraph.AddGraphEdge <CGraphEdge, CGraphNode>(s, y, GraphType.GT_DIRECTED); // 2. Associate weights with the edges of the graph CGraphQueryInfo <int, int, int> weights = new CGraphQueryInfo <int, int, int>(mgraph, 255); weights.CreateInfo(y, x, -3); weights.CreateInfo(x, t, -2); weights.CreateInfo(t, x, 5); weights.CreateInfo(z, x, 7); weights.CreateInfo(y, z, 9); weights.CreateInfo(t, y, 8); weights.CreateInfo(t, z, -4); weights.CreateInfo(s, t, 6); weights.CreateInfo(s, y, 7); weights.CreateInfo(z, s, 2); mgraph.RegisterGraphPrinter(new CGraphVizPrinter(mgraph)); // The graph uses the registered printers to print the graph to the specified output mgraph.Generate(@"D:\MyPrivateWork\MyApps\MyApplications\EDUFLEX\GraphLibrary\TestSerialization\bin\Debug\test.dot", true); BinaryFormatter saver = new BinaryFormatter(); XmlSerializer xmlsaver = new XmlSerializer(typeof(CGraph)); using (Stream stream = new FileStream("graph.g", FileMode.Create, FileAccess.Write)) { saver.Serialize(stream, mgraph); } CGraph deserializedGraph; using (Stream stream = new FileStream("graph.g", FileMode.Open, FileAccess.Read)) { deserializedGraph = (CGraph)saver.Deserialize(stream); } deserializedGraph.RegisterGraphPrinter(new CGraphVizPrinter(mgraph)); // The graph uses the registered printers to print the graph to the specified output deserializedGraph.Generate(@"D:\MyPrivateWork\MyApps\MyApplications\EDUFLEX\GraphLibrary\TestSerialization\bin\Debug\regentest.dot", true); using (Stream stream = new FileStream("graph.xml", FileMode.Create, FileAccess.Write)) { xmlsaver.Serialize(stream, mgraph); } }