/// <summary>
/// Returns a new router.
/// </summary>
/// <param name="interpreter"></param>
/// <param name="embeddedName"></param>
/// <param name="contract"></param>
/// <returns></returns>
public override Router BuildRouter(IOsmRoutingInterpreter interpreter, string embeddedName, bool contract)
{
if (_data == null)
{
_data = new Dictionary<string, DynamicGraphRouterDataSource<LiveEdge>>();
}
DynamicGraphRouterDataSource<LiveEdge> data = null;
if (!_data.TryGetValue(embeddedName, out data))
{
var tagsIndex = new TagsTableCollectionIndex();
// do the data processing.
data = new DynamicGraphRouterDataSource<LiveEdge>(tagsIndex);
var targetData = new LiveGraphOsmStreamTarget(
data, interpreter, tagsIndex, new Vehicle[] { Vehicle.Car }, false);
var dataProcessorSource = new XmlOsmStreamSource(
Assembly.GetExecutingAssembly().GetManifestResourceStream(string.Format(
"OsmSharp.Test.Unittests.{0}", embeddedName)));
var sorter = new OsmStreamFilterSort();
sorter.RegisterSource(dataProcessorSource);
targetData.RegisterSource(sorter);
targetData.Pull();
_data[embeddedName] = data;
}
return Router.CreateLiveFrom(data, new Dykstra(), interpreter);
}
/// <summary>
/// Tests preprocessing data from a PBF file.
/// </summary>
/// <param name="name"></param>
/// <param name="pbfFile"></param>
public static void TestPreprocessing(string name, string pbfFile)
{
FileInfo testFile = new FileInfo(string.Format(@".\TestFiles\{0}", pbfFile));
Stream stream = testFile.OpenRead();
var progress = new OsmStreamFilterProgress();
progress.RegisterSource(new PBFOsmStreamSource(stream));
var performanceInfo = new PerformanceInfoConsumer("LivePreProcessor", 20000);
performanceInfo.Start();
performanceInfo.Report("Pulling from {0}...", testFile.Name);
var tagsIndex = new TagsTableCollectionIndex(); // creates a tagged index.
// read from the OSM-stream.
// var memoryGraph = new MemoryMappedGraph<LiveEdge>(1000000, @"c:\temp\");
var memoryData = new DynamicGraphRouterDataSource<LiveEdge>(tagsIndex);
var targetData = new LiveGraphOsmStreamTarget(memoryData, new OsmRoutingInterpreter(), tagsIndex);
targetData.RegisterSource(progress);
targetData.Pull();
stream.Dispose();
performanceInfo.Stop();
// make sure the router is still here after GC to note the memory difference.
OsmSharp.Logging.Log.TraceEvent("LivePreProcessor", Logging.TraceEventType.Information, memoryData.ToString());
memoryData = null;
GC.Collect();
}
/// <summary>
/// Tests routing from a serialized routing file.
/// </summary>
/// <param name="name"></param>
/// <param name="stream"></param>
/// <param name="testCount"></param>
public static void TestRouting(string name, Stream stream, int testCount)
{
var vehicle = Vehicle.Car;
var tagsIndex = new TagsTableCollectionIndex(); // creates a tagged index.
// read from the OSM-stream.
var source = new OsmSharp.Osm.Streams.Filters.OsmStreamFilterProgress();
source.RegisterSource(new OsmSharp.Osm.PBF.Streams.PBFOsmStreamSource(stream));
var data = CHEdgeGraphOsmStreamTarget.Preprocess(source,
new OsmRoutingInterpreter(), vehicle);
var router = new CHRouter();
var performanceInfo = new PerformanceInfoConsumer("CHRouting");
performanceInfo.Start();
performanceInfo.Report("Routing {0} routes...", testCount);
var successCount = 0;
var totalCount = testCount;
var latestProgress = -1.0f;
while (testCount > 0)
{
var from = (uint)OsmSharp.Math.Random.StaticRandomGenerator.Get().Generate(data.VertexCount - 1) + 1;
var to = (uint)OsmSharp.Math.Random.StaticRandomGenerator.Get().Generate(data.VertexCount - 1) + 1;
var route = router.Calculate(data, from, to);
if(route != null)
{
successCount++;
}
testCount--;
// report progress.
var progress = (float)System.Math.Round(((double)(totalCount - testCount) / (double)totalCount) * 100);
if (progress != latestProgress)
{
OsmSharp.Logging.Log.TraceEvent("CHRouting", TraceEventType.Information,
"Routing... {0}%", progress);
latestProgress = progress;
}
}
performanceInfo.Stop();
OsmSharp.Logging.Log.TraceEvent("CHRouting", OsmSharp.Logging.TraceEventType.Information,
string.Format("{0}/{1} routes successfull!", successCount, totalCount));
}
/// <summary>
/// Builds a raw router to compare against.
/// </summary>
/// <returns></returns>
public void BuildDykstraRouter(string embeddedName,
IOsmRoutingInterpreter interpreter)
{
var tagsIndex = new TagsTableCollectionIndex();
// do the data processing.
var data = new DynamicGraphRouterDataSource<LiveEdge>(tagsIndex);
var targetData = new LiveGraphOsmStreamTarget(
data, interpreter, tagsIndex, new Vehicle[] { Vehicle.Car });
var dataProcessorSource = new XmlOsmStreamSource(
Assembly.GetExecutingAssembly().GetManifestResourceStream(embeddedName));
var sorter = new OsmStreamFilterSort();
sorter.RegisterSource(dataProcessorSource);
targetData.RegisterSource(sorter);
targetData.Pull();
// initialize the router.
_referenceRouter = Router.CreateLiveFrom(data, new Dykstra(), interpreter);
}
/// <summary>
/// Returns a new router.
/// </summary>
/// <param name="interpreter"></param>
/// <param name="embeddedName"></param>
/// <param name="contract"></param>
/// <returns></returns>
public override Router BuildRouter(IOsmRoutingInterpreter interpreter, string embeddedName, bool contract)
{
if (_data == null)
{
_data = new Dictionary<string, DynamicGraphRouterDataSource<CHEdgeData>>();
}
DynamicGraphRouterDataSource<CHEdgeData> data = null;
if (!_data.TryGetValue(embeddedName, out data))
{
var tagsIndex = new TagsTableCollectionIndex();
// do the data processing.
data = new DynamicGraphRouterDataSource<CHEdgeData>(tagsIndex);
var targetData = new CHEdgeGraphOsmStreamTarget(
data, interpreter, tagsIndex, Vehicle.Car);
var dataProcessorSource = new XmlOsmStreamSource(
Assembly.GetExecutingAssembly().GetManifestResourceStream(string.Format(
"OsmSharp.Test.Unittests.{0}", embeddedName)));
var sorter = new OsmStreamFilterSort();
sorter.RegisterSource(dataProcessorSource);
targetData.RegisterSource(sorter);
targetData.Pull();
if (contract)
{
// do the pre-processing part.
var witnessCalculator = new DykstraWitnessCalculator();
var preProcessor = new CHPreProcessor(data,
new EdgeDifference(data, witnessCalculator), witnessCalculator);
preProcessor.Start();
}
_data[embeddedName] = data;
}
return Router.CreateCHFrom(data, new CHRouter(), interpreter);
}
/// <summary>
/// Executes the CH contractions while verifying each step.
/// </summary>
/// <param name="stream"></param>
public void DoTestCHSparseVerifiedContraction(Stream stream)
{
_pathsBeforeContraction = new Dictionary<uint, Dictionary<uint, Dictionary<uint, PathSegment<long>>>>();
_interpreter = new OsmRoutingInterpreter();
var tagsIndex = new TagsTableCollectionIndex();
// do the data processing.
_data = new DynamicGraphRouterDataSource<CHEdgeData>(new MemoryDirectedGraph<CHEdgeData>(), tagsIndex);
var targetData = new CHEdgeGraphOsmStreamTarget(
_data, _interpreter, tagsIndex, Vehicle.Car);
var dataProcessorSource = new XmlOsmStreamSource(stream);
var sorter = new OsmStreamFilterSort();
sorter.RegisterSource(dataProcessorSource);
targetData.RegisterSource(sorter);
targetData.Pull();
// do the pre-processing part.
var witnessCalculator = new DykstraWitnessCalculator();
var preProcessor = new CHPreProcessor(_data,
new EdgeDifferenceContractedSearchSpace(_data, witnessCalculator), witnessCalculator);
preProcessor.OnBeforeContractionEvent += new CHPreProcessor.VertexDelegate(pre_processor_OnBeforeContractionEvent);
preProcessor.OnAfterContractionEvent += new CHPreProcessor.VertexDelegate(pre_processor_OnAfterContractionEvent);
preProcessor.Start();
}
/// <summary>
/// Tests routing from a serialized routing file.
/// </summary>
/// <param name="name"></param>
/// <param name="stream"></param>
/// <param name="box"></param>
/// <param name="testCount"></param>
public static void TestRouting(string name, Stream stream,
GeoCoordinateBox box, int testCount)
{
var vehicle = Vehicle.Car;
var tagsIndex = new TagsTableCollectionIndex(); // creates a tagged index.
// read from the OSM-stream.
var data = CHEdgeGraphOsmStreamTarget.Preprocess(
new OsmSharp.Osm.PBF.Streams.PBFOsmStreamSource(stream),
new OsmRoutingInterpreter(), vehicle);
var router = Router.CreateCHFrom(data, new CHRouter(), new OsmRoutingInterpreter());
var performanceInfo = new PerformanceInfoConsumer("CHRouting");
performanceInfo.Start();
performanceInfo.Report("Routing {0} routes...", testCount);
int successCount = 0;
int totalCount = testCount;
float latestProgress = -1;
while (testCount > 0)
{
var from = box.GenerateRandomIn();
var to = box.GenerateRandomIn();
var fromPoint = router.Resolve(vehicle, from);
var toPoint = router.Resolve(vehicle, to);
if (fromPoint != null && toPoint != null)
{
Route route = null;
try
{
route = router.Calculate(vehicle, fromPoint, toPoint);
}
catch
{
}
if (route != null)
{
successCount++;
}
}
testCount--;
// report progress.
float progress = (float)System.Math.Round(((double)(totalCount - testCount) / (double)totalCount) * 100);
if (progress != latestProgress)
{
OsmSharp.Logging.Log.TraceEvent("CHRouting", TraceEventType.Information,
"Routing... {0}%", progress);
latestProgress = progress;
}
}
performanceInfo.Stop();
OsmSharp.Logging.Log.TraceEvent("CHRouting", OsmSharp.Logging.TraceEventType.Information,
string.Format("{0}/{1} routes successfull!", successCount, totalCount));
}
