/// <summary>
/// Registers a source and also allows a given action on all objects coming from this source.
/// </summary>
public static void RegisterSource(this IOsmStreamTarget target, IEnumerable <OsmGeo> source, Action <OsmGeo> channel)
{
var filter = new OsmStreamFilterDelegate();
filter.RegisterSource(source);
filter.MoveToNextEvent = (osmGeo, param) =>
{
channel(osmGeo);
return(osmGeo);
};
target.RegisterSource(filter);
}
/// <summary>
/// Registers a source but keeps only the objects that satify a given condition.
/// </summary>
public static void RegisterSource(this IOsmStreamTarget target, IEnumerable <OsmGeo> source, Func <OsmGeo, bool> keep)
{
var filter = new OsmStreamFilterDelegate();
filter.RegisterSource(source);
filter.MoveToNextEvent = (osmGeo, param) =>
{
if (keep(osmGeo))
{
return(osmGeo);
}
return(null);
};
target.RegisterSource(filter);
}
/// <summary>
/// Registers a source on this target.
/// </summary>
public static void RegisterSource(this IOsmStreamTarget target, IEnumerable <OsmGeo> source)
{
target.RegisterSource(new OsmEnumerableStreamSource(source));
}
