public void TestSparseRemoval1()
{
// use one edge definition everywhere.
var edge = new Edge();
edge.Forward = true;
edge.Tags = 1;
var graph = new Graph<Edge>();
uint vertex1 = graph.AddVertex(0, 0);
uint vertex2 = graph.AddVertex(1, 1);
uint vertex3 = graph.AddVertex(2, 2);
graph.AddEdge(vertex1, vertex2, edge, null);
graph.AddEdge(vertex2, vertex1, edge, null);
graph.AddEdge(vertex2, vertex3, edge, null);
graph.AddEdge(vertex3, vertex2, edge, null);
// execute pre-processor.
var preProcessor = new GraphSimplificationPreprocessor(graph);
preProcessor.Start();
// test resulting graph.
Assert.AreEqual(2, graph.VertexCount);
Assert.AreEqual(1, graph.GetEdges(1).ToKeyValuePairs().Length);
Assert.AreEqual(2, graph.GetEdges(1).ToKeyValuePairs()[0].Key);
Assert.AreEqual(1, graph.GetEdges(2).ToKeyValuePairs().Length);
Assert.AreEqual(1, graph.GetEdges(2).ToKeyValuePairs()[0].Key);
}
public void TestSparseRemoval1Routing()
{
// use one edge definition everywhere.
var tagsIndex = new TagsIndex();
var tags = new TagsCollection(new Tag("highway","residential"));
var edge = new Edge();
edge.Forward = true;
edge.Tags = tagsIndex.Add(tags);
var graph = new Graph<Edge>();
uint vertex1 = graph.AddVertex(51.267797f, 4.8013623f);
uint vertex2 = graph.AddVertex(51.267702f, 4.8013396f);
uint vertex3 = graph.AddVertex(51.267592f, 4.8013024f);
graph.AddEdge(vertex1, vertex2, edge, null);
graph.AddEdge(vertex2, vertex3, edge, null);
graph.AddEdge(vertex3, vertex2, edge, null);
// save vertex coordinates for later use.
float latitude, longitude;
graph.GetVertex(vertex1, out latitude, out longitude);
var vertex1Coordinate = new GeoCoordinate(latitude, longitude);
graph.GetVertex(vertex2, out latitude, out longitude);
var vertex2Coordinate = new GeoCoordinate(latitude, longitude);
graph.GetVertex(vertex3, out latitude, out longitude);
var vertex3Coordinate = new GeoCoordinate(latitude, longitude);
// execute pre-processor.
var preProcessor = new GraphSimplificationPreprocessor(graph);
preProcessor.Start();
// create router.
var source = new RouterDataSource<Edge>(
graph, tagsIndex);
var router = Router.CreateFrom(source, new OsmRoutingInterpreter());
// test some basic routing requests.
// 1 -> 3: 1 -> 2 -> 3.
var resolved1 = router.Resolve(Vehicle.Car, vertex1Coordinate);
var resolved3 = router.Resolve(Vehicle.Car, vertex3Coordinate);
var route = router.Calculate(Vehicle.Car, resolved1, resolved3);
// verify the simple route result.
Assert.IsNotNull(route);
Assert.AreEqual(3, route.Segments.Length);
Assert.AreEqual(vertex1Coordinate.Latitude, route.Segments[0].Latitude);
Assert.AreEqual(vertex1Coordinate.Longitude, route.Segments[0].Longitude);
Assert.AreEqual(vertex2Coordinate.Latitude, route.Segments[1].Latitude);
Assert.AreEqual(vertex2Coordinate.Longitude, route.Segments[1].Longitude);
Assert.AreEqual(vertex3Coordinate.Latitude, route.Segments[2].Latitude);
Assert.AreEqual(vertex3Coordinate.Longitude, route.Segments[2].Longitude);
// 1 -> 2: 1 -> 2.
router = Router.CreateFrom(source, new OsmRoutingInterpreter());
resolved1 = router.Resolve(Vehicle.Car, vertex1Coordinate);
var resolved2 = router.Resolve(Vehicle.Car, vertex2Coordinate);
route = router.Calculate(Vehicle.Car, resolved1, resolved2);
// verify the simple route result.
Assert.IsNotNull(route);
Assert.AreEqual(2, route.Segments.Length);
Assert.AreEqual(vertex1Coordinate.Latitude, route.Segments[0].Latitude);
Assert.AreEqual(vertex1Coordinate.Longitude, route.Segments[0].Longitude);
Assert.AreEqual(vertex2Coordinate.Latitude, route.Segments[1].Latitude);
Assert.AreEqual(vertex2Coordinate.Longitude, route.Segments[1].Longitude);
}
public void TestSparseRemoval2()
{
// use one edge definition everywhere.
var edge = new Edge();
edge.Forward = true;
edge.Tags = 1;
var graph = new Graph<Edge>();
uint vertex1 = graph.AddVertex(0, 0);
uint vertex2 = graph.AddVertex(1, 1);
uint vertex3 = graph.AddVertex(2, 2);
uint vertex4 = graph.AddVertex(3, 3);
uint vertex5 = graph.AddVertex(4, 4);
uint vertex6 = graph.AddVertex(5, 5);
graph.AddEdge(vertex1, vertex2, edge, null); // 1 <-> 2
graph.AddEdge(vertex2, vertex1, edge, null); // 1 <-> 2
graph.AddEdge(vertex2, vertex3, edge, null); // 2 <-> 3
graph.AddEdge(vertex3, vertex2, edge, null); // 2 <-> 3
graph.AddEdge(vertex3, vertex4, edge, null); // 3 <-> 4
graph.AddEdge(vertex4, vertex3, edge, null); // 3 <-> 4
graph.AddEdge(vertex4, vertex5, edge, null); // 4 <-> 5
graph.AddEdge(vertex5, vertex4, edge, null); // 4 <-> 5
graph.AddEdge(vertex3, vertex6, edge, null); // 3 <-> 6
graph.AddEdge(vertex6, vertex3, edge, null); // 3 <-> 6
// execute pre-processor.
var preProcessor = new GraphSimplificationPreprocessor(graph);
preProcessor.Start();
// test resulting graph.
Assert.AreEqual(4, graph.VertexCount);
Assert.AreEqual(1, graph.GetEdges(1).ToKeyValuePairs().Length);
Assert.AreEqual(2, graph.GetEdges(1).ToKeyValuePairs()[0].Key);
Assert.AreEqual(3, graph.GetEdges(2).ToKeyValuePairs().Length);
Assert.IsTrue(graph.GetEdges(2).ToKeyValuePairs().Any(x => x.Key == 1));
Assert.IsTrue(graph.GetEdges(2).ToKeyValuePairs().Any(x => x.Key == 3));
Assert.IsTrue(graph.GetEdges(2).ToKeyValuePairs().Any(x => x.Key == 4));
Assert.AreEqual(1, graph.GetEdges(3).ToKeyValuePairs().Length);
Assert.AreEqual(2, graph.GetEdges(3).ToKeyValuePairs()[0].Key);
Assert.AreEqual(1, graph.GetEdges(4).ToKeyValuePairs().Length);
Assert.AreEqual(2, graph.GetEdges(4).ToKeyValuePairs()[0].Key);
}