public void Test3Vertices()
{
// build graph.
var graph = new DirectedMetaGraph(ContractedEdgeDataSerializer.Size,
ContractedEdgeDataSerializer.MetaSize);
graph.AddEdge(0, 1, 100, null, Constants.NO_VERTEX);
graph.AddEdge(1, 0, 100, null, Constants.NO_VERTEX);
graph.AddEdge(1, 2, 100, null, Constants.NO_VERTEX);
graph.AddEdge(2, 1, 100, null, Constants.NO_VERTEX);
graph.Compress();
// contract graph.
var hierarchyBuilder = new Itinero.Algorithms.Contracted.Dual.HierarchyBuilder(graph,
new DykstraWitnessCalculator(graph.Graph, int.MaxValue));
hierarchyBuilder.Run();
// check edges.
var edges01 = graph.GetEdgeEnumerator(0).FirstOrDefault(x => x.Neighbour == 1);
Assert.IsNotNull(edges01);
var edge10 = graph.GetEdgeEnumerator(1).FirstOrDefault(x => x.Neighbour == 0);
Assert.IsNull(edge10);
var edge12 = graph.GetEdgeEnumerator(1).FirstOrDefault(x => x.Neighbour == 0);
Assert.IsNull(edge12);
var edges21 = graph.GetEdgeEnumerator(2).FirstOrDefault(x => x.Neighbour == 1);
Assert.IsNotNull(edges21);
}
public void TestUncontractedWitnessed()
{
// build graph.
var graph = new DirectedMetaGraph(ContractedEdgeDataSerializer.Size,
ContractedEdgeDataSerializer.MetaSize);
graph.AddEdge(0, 1, 100, null, Constants.NO_VERTEX);
graph.AddEdge(1, 0, 100, null, Constants.NO_VERTEX);
graph.AddEdge(1, 2, 100, null, Constants.NO_VERTEX);
graph.AddEdge(2, 1, 100, null, Constants.NO_VERTEX);
graph.AddEdge(1, 3, 10, null, Constants.NO_VERTEX);
graph.AddEdge(3, 1, 10, null, Constants.NO_VERTEX);
graph.AddEdge(3, 2, 10, null, Constants.NO_VERTEX);
graph.AddEdge(2, 3, 10, null, Constants.NO_VERTEX);
graph.Compress();
// contract graph.
var hierarchyBuilder = new Itinero.Algorithms.Contracted.Dual.HierarchyBuilder(graph,
new DykstraWitnessCalculator(graph.Graph, int.MaxValue));
hierarchyBuilder.ContractedFactor = 0;
hierarchyBuilder.DepthFactor = 0;
hierarchyBuilder.Run();
var edge = graph.GetEdgeEnumerator(0).FirstOrDefault(x => x.Neighbour == 1);
Assert.IsNotNull(edge);
var edgeData = ContractedEdgeDataSerializer.Deserialize(edge.Data[0], edge.MetaData[0]);
Assert.AreEqual(100, edgeData.Weight);
Assert.AreEqual(null, edgeData.Direction);
Assert.AreEqual(Constants.NO_VERTEX, edgeData.ContractedId);
edge = graph.GetEdgeEnumerator(2).FirstOrDefault(x => x.Neighbour == 1);
Assert.IsNotNull(edge);
edgeData = ContractedEdgeDataSerializer.Deserialize(edge.Data[0], edge.MetaData[0]);
Assert.AreEqual(100, edgeData.Weight);
Assert.AreEqual(null, edgeData.Direction);
Assert.AreEqual(Constants.NO_VERTEX, edgeData.ContractedId);
edge = graph.GetEdgeEnumerator(2).FirstOrDefault(x => x.Neighbour == 3);
Assert.IsNotNull(edge);
edgeData = ContractedEdgeDataSerializer.Deserialize(edge.Data[0], edge.MetaData[0]);
Assert.AreEqual(10, edgeData.Weight);
Assert.AreEqual(null, edgeData.Direction);
Assert.AreEqual(Constants.NO_VERTEX, edgeData.ContractedId);
edge = graph.GetEdgeEnumerator(3).FirstOrDefault(x => x.Neighbour == 1);
Assert.IsNotNull(edge);
edgeData = ContractedEdgeDataSerializer.Deserialize(edge.Data[0], edge.MetaData[0]);
Assert.AreEqual(10, edgeData.Weight);
Assert.AreEqual(null, edgeData.Direction);
Assert.AreEqual(Constants.NO_VERTEX, edgeData.ContractedId);
}
public void TestPentagonAugmented()
{
// build graph.
var graph = new DirectedMetaGraph(ContractedEdgeDataSerializer.Size,
ContractedEdgeDataSerializer.DynamicAugmentedFixedSize);
graph.AddEdge(0, 1, 100, null, Constants.NO_VERTEX, 50, 1000);
graph.AddEdge(1, 0, 100, null, Constants.NO_VERTEX, 50, 1000);
graph.AddEdge(1, 2, 100, null, Constants.NO_VERTEX, 50, 1000);
graph.AddEdge(2, 1, 100, null, Constants.NO_VERTEX, 50, 1000);
graph.AddEdge(2, 3, 100, null, Constants.NO_VERTEX, 50, 1000);
graph.AddEdge(3, 2, 100, null, Constants.NO_VERTEX, 50, 1000);
graph.AddEdge(3, 4, 100, null, Constants.NO_VERTEX, 50, 1000);
graph.AddEdge(4, 3, 100, null, Constants.NO_VERTEX, 50, 1000);
graph.AddEdge(4, 0, 100, null, Constants.NO_VERTEX, 50, 1000);
graph.AddEdge(0, 4, 100, null, Constants.NO_VERTEX, 50, 1000);
graph.Compress();
// contract graph.
var weightHandler = new WeightHandler(null);
var hierarchyBuilder = new Itinero.Algorithms.Contracted.Dual.HierarchyBuilder <Weight>(graph,
new DykstraWitnessCalculator <Weight>(graph.Graph, weightHandler, int.MaxValue), weightHandler);
hierarchyBuilder.ContractedFactor = 0;
hierarchyBuilder.DepthFactor = 0;
hierarchyBuilder.Run();
// check edges.
var edges01 = graph.GetEdgeEnumerator(0).FirstOrDefault(x => x.Neighbour == 1);
Assert.IsNotNull(edges01);
var edges10 = graph.GetEdgeEnumerator(1).FirstOrDefault(x => x.Neighbour == 0);
Assert.IsNull(edges10);
var edges12 = graph.GetEdgeEnumerator(1).FirstOrDefault(x => x.Neighbour == 2);
Assert.IsNull(edges12);
var edges21 = graph.GetEdgeEnumerator(2).FirstOrDefault(x => x.Neighbour == 1);
Assert.IsNotNull(edges21);
var edges23 = graph.GetEdgeEnumerator(2).FirstOrDefault(x => x.Neighbour == 3);
Assert.IsNotNull(edges23);
var edges32 = graph.GetEdgeEnumerator(3).FirstOrDefault(x => x.Neighbour == 2);
Assert.IsNull(edges32);
var edges34 = graph.GetEdgeEnumerator(3).FirstOrDefault(x => x.Neighbour == 4);
Assert.IsNull(edges34);
var edges43 = graph.GetEdgeEnumerator(4).FirstOrDefault(x => x.Neighbour == 3);
Assert.IsNotNull(edges43);
var edges40 = graph.GetEdgeEnumerator(4).FirstOrDefault(x => x.Neighbour == 0);
Assert.IsNull(edges40);
var edges04 = graph.GetEdgeEnumerator(0).FirstOrDefault(x => x.Neighbour == 4);
Assert.IsNotNull(edges04);
var edges41 = graph.GetEdgeEnumerator(4).FirstOrDefault(x => x.Neighbour == 1);
Assert.IsNotNull(edges41);
var edges14 = graph.GetEdgeEnumerator(1).FirstOrDefault(x => x.Neighbour == 4);
Assert.IsNull(edges14);
var edges31 = graph.GetEdgeEnumerator(3).FirstOrDefault(x => x.Neighbour == 1);
Assert.IsNotNull(edges31);
var edges13 = graph.GetEdgeEnumerator(1).FirstOrDefault(x => x.Neighbour == 3);
Assert.IsNull(edges13);
}