/// <inheritdoc cref="IOverpassApi"/>
public OsmNode[] GetOsmNodes(OSMPointsLayer osmLayer, Area area)
{
string query = _queryBuilder.BuildQueryForNodes(osmLayer, area.YStart, area.YEnd, area.XStart, area.XEnd);
var nodes = LoadNodesFromOverpass(query);
return(CleanFromToFarAwayEntries(nodes, area.Center, osmLayer.MaxDistanceToCity, osmLayer.MaxDistaToTag).ToArray());
}
public string BuildQuery(OSMPointsLayer osmLayer, double latitude, double longitude, double maxDistance = 0)
{
if (osmLayer == null)
{
return("");
}
var nodesToLoad = GetNodesToLoad(osmLayer, maxDistance);
return(BuildQueryForNodes(nodesToLoad.ToArray(), latitude, longitude));
}
/// <inheritdoc cref="IOverpassApi"/>
public OsmNode[] GetOsmNodes(OSMPointsLayer osmLayer, double latitudeStart, double latitudeEnd, double longitudeStart, double longitudeEnd)
{
Area area = new Area();
area.XStart = longitudeStart;
area.XEnd = longitudeEnd;
area.YStart = latitudeStart;
area.YEnd = latitudeEnd;
return(GetOsmNodes(osmLayer, area));
}
/// <inheritdoc cref="IOverpassApi"/>
public OsmNode[] GetOsmNodes(OSMPointsLayer osmLayer, PointLatLng point, int maxDistance)
{
PointLatLng start = WSG84Math.GetDestinationPoint(point, 315, maxDistance);
PointLatLng end = WSG84Math.GetDestinationPoint(point, 135, maxDistance);
Area area = new Area();
area.XStart = start.Longitude;
area.YStart = start.Latitude;
area.XEnd = end.Longitude;
area.YEnd = end.Latitude;
return(GetOsmNodes(osmLayer, area));
}
public string BuildQueryForNodes(OSMPointsLayer osmLayer, double latitudeStart, double latitudeEnd, double longitudeStart, double longitudeEnd)
{
if (osmLayer == null)
{
return("");
}
double latitude = latitudeStart + (latitudeEnd - latitudeStart) / 2;
double longitude = longitudeStart + (longitudeEnd - longitudeStart) / 2;
double maxDistanceInMeters = WSG84Math.GetDistanceInMeters(latitudeStart, longitudeStart, latitudeEnd, longitudeEnd);
var nodesToLoad = GetNodesToLoad(osmLayer, maxDistanceInMeters);
return(BuildQueryForNodes(nodesToLoad.ToArray(), latitude, longitude));
}
private IEnumerable <Tuple <string, string, int> > GetNodesToLoad(OSMPointsLayer osmLayer, double maxDistanceInMeters = 0)
{
int maxDistanceToCity = (int)maxDistanceInMeters;
if (osmLayer.MaxDistanceToCity > 0)
{
maxDistanceToCity = osmLayer.MaxDistanceToCity;
}
int maxDistanceToTag = (int)maxDistanceInMeters;
if (osmLayer.MaxDistaToTag > 0)
{
maxDistanceToTag = osmLayer.MaxDistaToTag;
}
if (osmLayer.CityTypeCity)
{
yield return(new Tuple <string, string, int>("place", "city", maxDistanceToCity));
}
if (osmLayer.CityTypeTown)
{
yield return(new Tuple <string, string, int>("place", "town", maxDistanceToCity));
}
if (osmLayer.CityTypeSuburb)
{
yield return(new Tuple <string, string, int>("place", "suburb", maxDistanceToCity));
}
if (osmLayer.CityTypeVillage)
{
yield return(new Tuple <string, string, int>("place", "village", maxDistanceToCity));
}
if (osmLayer.CityTypeNeighbourhood)
{
yield return(new Tuple <string, string, int>("place", "neighbourhood", maxDistanceToCity));
}
foreach (var nodeTag in osmLayer.NodeTags)
{
yield return(new Tuple <string, string, int>(nodeTag.Key, nodeTag.Value, maxDistanceToTag));
}
}
public void TestGetCities()
{
var client = new OverpassApi();
OSMPointsLayer layer = new OSMPointsLayer();
layer.CityTypeNeighbourhood = true;
layer.CityTypeCity = true;
layer.CityTypeSuburb = true;
layer.CityTypeTown = true;
layer.CityTypeVillage = true;
layer.MaxDistanceToCity = 40000;
layer.MaxDistaToTag = 2000;
var result = client.GetOsmNodes(layer, new PointLatLng(51.4894273, 9.1421818), 10000);
//if the city isn't found, it throws an exception -> Test failed :-)
result.First(x => x.Name.Equals("Warburg"));
result.First(x => x.Name.Equals("Nörde"));
result.First(x => x.Name.Equals("Hohenwepel"));
result.First(x => x.Name.Equals("Menne"));
}
/// <inheritdoc cref="IOverpassApi"/>
public OsmNode[] GetOsmNodes(OSMPointsLayer layer, double latitude, double longitude, int maxDistance)
{
return(GetOsmNodes(layer, new PointLatLng(latitude, longitude), maxDistance));
}
