/// <summary>
/// Loads all OSM data in the given bounding box by using routable tiles.
/// </summary>
/// <param name="db">The routerdb to fill.</param>
/// <param name="box">The bounding box to fetch tiles for.</param>
/// <param name="keepGlobalIds">Flag to keep the global ids.</param>
/// <param name="baseUrl">The base url of the routeable tile source.</param>
/// <param name="vehicleCache">The vehicle cache to use.</param>
public static void LoadOsmDataFromTiles(this RouterDb db, Box box, string baseUrl = TileParser.BaseUrl, bool keepGlobalIds = true, VehicleCache vehicleCache = null)
{
// build the tile range.
var tileRange = new TileRange(box, Zoom);
// build the vehicle cache.
if (vehicleCache == null)
{
vehicleCache = new VehicleCache(db.GetSupportedVehicles().ToArray());
}
// get all the tiles and build the routerdb.
var globalIdMap = db.ExtractGlobalIds();
db.Network.GeometricGraph.Graph.MarkAsMulti(); // when loading data we need a multigraph.
var tiles = tileRange.ToList();
for (var t = 0; t < tiles.Count; t++)
{
var tile = tiles[t];
Logger.Log(nameof(RouterDbExtensions), Logging.TraceEventType.Information,
$"Loading tile {t+1}/{tiles.Count}: {tile}({tile.LocalId})");
db.AddOsmTile(globalIdMap, tile, vehicleCache, baseUrl);
}
// keep global ids if it's a requirement.
if (keepGlobalIds)
{
db.AddOrUpdateGlobalIds(globalIdMap);
}
// sort the network.
db.Sort();
// optimize the network by applying simplifications.
db.OptimizeNetwork();
// compress the network.
db.Compress();
}
public TileRangeEnumerator(TileRange tileRange)
{
_tileRange = tileRange;
_x = uint.MaxValue;
_y = uint.MaxValue;
}