/// <summary>
/// Registers the source.
/// </summary>
public virtual void RegisterSource(OsmStreamSource source, bool filterNonRoutingTags)
{
if (filterNonRoutingTags)
{ // add filtering.
var eventsFilter = new OsmSharp.Streams.Filters.OsmStreamFilterDelegate();
eventsFilter.MoveToNextEvent += (osmGeo, param) =>
{
if (osmGeo.Type == OsmGeoType.Way)
{
// normalize tags, reduce the combination of tags meaning the same thing.
var tags = osmGeo.Tags.ToAttributes();
var normalizedTags = new AttributeCollection();
if (!DefaultTagNormalizer.Normalize(tags, normalizedTags, _vehicleCache))
{ // invalid data, no access, or tags make no sense at all.
return(osmGeo);
}
// rewrite tags and keep whitelisted meta-tags.
osmGeo.Tags.Clear();
foreach (var tag in normalizedTags)
{
osmGeo.Tags.Add(tag.Key, tag.Value);
}
foreach (var tag in tags)
{
if (_vehicleCache.Vehicles.IsOnMetaWhiteList(tag.Key))
{
osmGeo.Tags.Add(tag.Key, tag.Value);
}
}
}
return(osmGeo);
};
eventsFilter.RegisterSource(source);
base.RegisterSource(eventsFilter);
}
else
{ // no filtering.
base.RegisterSource(source);
}
}
/// <summary>
/// Loads a routing network created from OSM data.
/// </summary>
public static void LoadOsmData(this RouterDb db, IEnumerable <OsmGeo> source, bool allCore = false, bool processRestrictions = false, bool normalizeTags = true,
ITagNormalizer tagNormalizer = null, IEnumerable <ITwoPassProcessor> processors = null, params Itinero.Osm.Vehicles.Vehicle[] vehicles)
{
if (!db.IsEmpty)
{
throw new ArgumentException("Can only load a new routing network into an empty router db.");
}
if (normalizeTags && tagNormalizer == null)
{
tagNormalizer = new DefaultTagNormalizer();
}
// load the data.
var target = new Streams.RouterDbStreamTarget(db,
vehicles, tagNormalizer, allCore, processRestrictions: processRestrictions, normalizeTags: normalizeTags, processors: processors);
target.RegisterSource(source);
target.Pull();
// sort the network.
db.Sort();
}
