private Engine()
{
if (string.IsNullOrWhiteSpace(PbfDataFilePath))
{
throw new NullReferenceException("PbfDataFilePath must be set.");
}
if (!File.Exists(PbfDataFilePath))
{
throw new NullReferenceException("PbfDataFilePath '" + PbfDataFilePath + "' does not exist.");
}
// keeps a memory-efficient version of the osm-tags.
var tagsIndex = new OsmTagsIndex();
// creates a routing interpreter. (used to translate osm-tags into a routable network)
var interpreter = new OsmRoutingInterpreter();
// create a routing datasource, keeps all processed osm routing data.
var osmData = new MemoryRouterDataSource<SimpleWeighedEdge>(tagsIndex);
// load data into this routing datasource.
Stream osmPbfData = new FileInfo(PbfDataFilePath).OpenRead(); // for example moscow!
using (osmPbfData)
{
var targetData = new
SimpleWeighedDataGraphProcessingTarget(
osmData, interpreter, osmData.TagsIndex, VehicleEnum.Car);
// replace this with PBFdataProcessSource when having downloaded a PBF file.
var dataProcessorSource = new
PBFDataProcessorSource(osmPbfData);
// pre-process the data.
var stopwatch = new Stopwatch();
stopwatch.Start();
var sorter = new DataProcessorFilterSort();
sorter.RegisterSource(dataProcessorSource);
targetData.RegisterSource(sorter);
targetData.Pull();
stopwatch.Stop();
}
// create the router object: there all routing functions are available.
router = new Router<SimpleWeighedEdge>(
osmData, interpreter, new DykstraRoutingLive(osmData.TagsIndex));
}
/// <summary>
/// Initializes a new instance of the <see cref="Engine"/> class.
/// </summary>
protected Engine()
{
// keeps a memory-efficient version of the osm-tags.
var tagsIndex = new OsmTagsIndex();
// creates a routing interpreter. (used to translate osm-tags into a routable network)
interpreter = new OsmRoutingInterpreter();
// create a routing datasource, keeps all processed osm routing data.
var osmData = new MemoryRouterDataSource <SimpleWeighedEdge>(tagsIndex);
// load data into this routing datasource.
var fileSource = HostingEnvironment.MapPath("~/App_Data/Manchester.osm.pbf");
Stream osmXmlData = new FileInfo(fileSource).OpenRead(); // for example moscow!
using (osmXmlData)
{
var targetData = new SimpleWeighedDataGraphProcessingTarget(
osmData,
interpreter,
osmData.TagsIndex,
VehicleEnum.Car);
// replace this with PBFdataProcessSource when having downloaded a PBF file.
var dataProcessorSource = new
OsmSharp.Osm.Data.PBF.Raw.Processor.PBFDataProcessorSource(osmXmlData);
// pre-process the data.
var sorter = new DataProcessorFilterSort();
sorter.RegisterSource(dataProcessorSource);
targetData.RegisterSource(sorter);
targetData.Pull();
}
// create the router object: there all routing functions are available.
router = new Router <SimpleWeighedEdge>(
osmData,
interpreter,
new DykstraRoutingLive(osmData.TagsIndex));
}
/// <summary>
/// Initializes a new instance of the <see cref="Engine"/> class.
/// </summary>
protected Engine()
{
// keeps a memory-efficient version of the osm-tags.
var tagsIndex = new OsmTagsIndex();
// creates a routing interpreter. (used to translate osm-tags into a routable network)
interpreter = new OsmRoutingInterpreter();
// create a routing datasource, keeps all processed osm routing data.
var osmData = new MemoryRouterDataSource<SimpleWeighedEdge>(tagsIndex);
// load data into this routing datasource.
var fileSource = HostingEnvironment.MapPath("~/App_Data/Manchester.osm.pbf");
Stream osmXmlData = new FileInfo(fileSource).OpenRead(); // for example moscow!
using (osmXmlData)
{
var targetData = new SimpleWeighedDataGraphProcessingTarget(
osmData,
interpreter,
osmData.TagsIndex,
VehicleEnum.Car);
// replace this with PBFdataProcessSource when having downloaded a PBF file.
var dataProcessorSource = new
OsmSharp.Osm.Data.PBF.Raw.Processor.PBFDataProcessorSource(osmXmlData);
// pre-process the data.
var sorter = new DataProcessorFilterSort();
sorter.RegisterSource(dataProcessorSource);
targetData.RegisterSource(sorter);
targetData.Pull();
}
// create the router object: there all routing functions are available.
router = new Router<SimpleWeighedEdge>(
osmData,
interpreter,
new DykstraRoutingLive(osmData.TagsIndex));
}
/// <summary>
/// Calculates a route to test on.
/// </summary>
/// <param name="from"></param>
/// <param name="to"></param>
/// <returns></returns>
private OsmSharpRoute Calculate(GeoCoordinate from, GeoCoordinate to)
{
if (_router == null)
{
var interpreter = new OsmRoutingInterpreter();
var tagsIndex = new OsmTagsIndex();
// do the data processing.
var memoryData =
new DynamicGraphRouterDataSource<SimpleWeighedEdge>(tagsIndex);
var targetData = new SimpleWeighedDataGraphProcessingTarget(
memoryData, interpreter, memoryData.TagsIndex, VehicleEnum.Car);
var dataProcessorSource = new XmlDataProcessorSource(
Assembly.GetExecutingAssembly().GetManifestResourceStream(
"OsmSharp.UnitTests.test_instructions.osm"));
var sorter = new DataProcessorFilterSort();
sorter.RegisterSource(dataProcessorSource);
targetData.RegisterSource(sorter);
targetData.Pull();
_router = new Router<SimpleWeighedEdge>(
memoryData, interpreter, new DykstraRoutingLive(memoryData.TagsIndex));
}
RouterPoint fromPoint = _router.Resolve(VehicleEnum.Car, from);
RouterPoint toPoint = _router.Resolve(VehicleEnum.Car, to);
return _router.Calculate(VehicleEnum.Car, fromPoint, toPoint);
}
/// <summary>
/// Prepares the router.
/// </summary>
private void PrepareRouter()
{
#if DEBUG
OsmSharp.Tools.Output.OutputStreamHost.RegisterOutputStream(
new OsmSharp.Tools.Output.DebugOutputStream());
#endif
// initialize the interpreters.
_interpreter =
new OsmRoutingInterpreter();
string file = OperationProcessor.Settings["pbf_file"];
var tagsIndex = new OsmTagsIndex(new ObjectTable<OsmTagsIndex.OsmTags>(true));
// do the data processing.
var data = new DynamicGraphRouterDataSource<SimpleWeighedEdge>(tagsIndex);
var targetData = new SimpleWeighedDataGraphProcessingTarget(
data, _interpreter, data.TagsIndex, VehicleEnum.Car);
var dataProcessorSource = new PBFDataProcessorSource((new FileInfo(
file)).OpenRead());
var progressSource = new ProgressDataProcessorSource(dataProcessorSource);
targetData.RegisterSource(progressSource);
targetData.Pull();
_data = data; // only set the data property here now after pre-processing!
}
