/// <summary>
/// Interprets an OSM-object and returns the corresponding geometry.
/// </summary>
public override FeatureCollection Interpret(ICompleteOsmGeo osmObject)
{
// DISCLAIMER: this is a very very very simple geometry interpreter and
// contains hardcoded all relevant tags.
var collection = new FeatureCollection();
if (osmObject == null)
{
return(collection);
}
TagsCollectionBase tags;
switch (osmObject.Type)
{
case OsmGeoType.Node:
var newCollection = new TagsCollection(
osmObject.Tags);
newCollection.RemoveKey("FIXME");
newCollection.RemoveKey("node");
newCollection.RemoveKey("source");
if (newCollection.Count > 0)
{ // there is still some relevant information left.
collection.Add(new Feature(new Point((osmObject as Node).GetCoordinate()),
TagsAndIdToAttributes(osmObject)));
}
break;
case OsmGeoType.Way:
tags = osmObject.Tags;
if (tags == null)
{
return(collection);
}
bool isArea = false;
if ((tags.ContainsKey("building") && !tags.IsFalse("building")) ||
(tags.ContainsKey("landuse") && !tags.IsFalse("landuse")) ||
(tags.ContainsKey("amenity") && !tags.IsFalse("amenity")) ||
(tags.ContainsKey("harbour") && !tags.IsFalse("harbour")) ||
(tags.ContainsKey("historic") && !tags.IsFalse("historic")) ||
(tags.ContainsKey("leisure") && !tags.IsFalse("leisure")) ||
(tags.ContainsKey("man_made") && !tags.IsFalse("man_made")) ||
(tags.ContainsKey("military") && !tags.IsFalse("military")) ||
(tags.ContainsKey("natural") && !tags.IsFalse("natural")) ||
(tags.ContainsKey("office") && !tags.IsFalse("office")) ||
(tags.ContainsKey("place") && !tags.IsFalse("place")) ||
(tags.ContainsKey("public_transport") && !tags.IsFalse("public_transport")) ||
(tags.ContainsKey("shop") && !tags.IsFalse("shop")) ||
(tags.ContainsKey("sport") && !tags.IsFalse("sport")) ||
(tags.ContainsKey("tourism") && !tags.IsFalse("tourism")) ||
(tags.ContainsKey("waterway") && !tags.IsFalse("waterway")) ||
(tags.ContainsKey("wetland") && !tags.IsFalse("wetland")) ||
(tags.ContainsKey("water") && !tags.IsFalse("water")) ||
(tags.ContainsKey("aeroway") && !tags.IsFalse("aeroway")))
{ // these tags usually indicate an area.
isArea = true;
}
if (tags.IsTrue("area"))
{ // explicitly indicated that this is an area.
isArea = true;
}
else if (tags.IsFalse("area"))
{ // explicitly indicated that this is not an area.
isArea = false;
}
// check for a closed line if area.
var coordinates = (osmObject as CompleteWay).GetCoordinates();
if (isArea && coordinates.Count > 1 &&
!coordinates[0].Equals2D(coordinates[coordinates.Count - 1]))
{ // not an area, first and last coordinate do not match.
Logger.Log("DefaultFeatureInterpreter", TraceEventType.Warning, "{0} is supposed to be an area but first and last coordinates do not match.",
osmObject.ToInvariantString());
}
else if (!isArea && coordinates.Count < 2)
{ // not a linestring, needs at least two coordinates.
Logger.Log("DefaultFeatureInterpreter", TraceEventType.Warning, "{0} is supposed to be a linestring but has less than two coordinates.",
osmObject.ToInvariantString());
}
else if (isArea && coordinates.Count < 4)
{ // not a linearring, needs at least four coordinates, with first and last identical.
Logger.Log("DefaultFeatureInterpreter", TraceEventType.Warning, "{0} is supposed to be a linearring but has less than four coordinates.",
osmObject.ToInvariantString());
}
else
{
if (isArea)
{ // area tags leads to simple polygon
var lineairRing = new Feature(new LinearRing(coordinates.
ToArray <Coordinate>()), TagsAndIdToAttributes(osmObject));
collection.Add(lineairRing);
}
else
{ // no area tag leads to just a line.
var lineString = new Feature(new LineString(coordinates.
ToArray <Coordinate>()), TagsAndIdToAttributes(osmObject));
collection.Add(lineString);
}
}
break;
case OsmGeoType.Relation:
var relation = (osmObject as CompleteRelation);
tags = relation.Tags;
if (tags == null)
{
return(collection);
}
if (tags.TryGetValue("type", out var typeValue))
{ // there is a type in this relation.
if (typeValue == "multipolygon" || typeValue == "linearring")
{ // this relation is a multipolygon.
var feature = this.InterpretMultipolygonRelation(relation);
if (feature != null)
{ // add the geometry.
collection.Add(feature);
}
}
else if (typeValue == "boundary" && tags.Contains("boundary", "administrative"))
{ // this relation is a boundary.
var feature = this.InterpretMultipolygonRelation(relation);
if (feature != null)
{ // add the geometry.
collection.Add(feature);
}
}
}
break;
default:
throw new ArgumentOutOfRangeException();
}
return(collection);
}
public override FeatureCollection Interpret(ICompleteOsmGeo osmObject)
{
FeatureCollection featureCollection = new FeatureCollection();
if (osmObject != null)
{
switch (osmObject.Type)
{
case CompleteOsmType.Node:
TagsCollection tagsCollection = new TagsCollection((IEnumerable <Tag>)osmObject.Tags);
string key1 = "FIXME";
tagsCollection.RemoveKey(key1);
string key2 = "node";
tagsCollection.RemoveKey(key2);
string key3 = "source";
tagsCollection.RemoveKey(key3);
if (tagsCollection.Count > 0)
{
featureCollection.Add(new Feature((Geometry) new Point((osmObject as Node).Coordinate), (GeometryAttributeCollection) new SimpleGeometryAttributeCollection((IEnumerable <Tag>)osmObject.Tags)));
break;
}
break;
case CompleteOsmType.Way:
TagsCollectionBase tags = osmObject.Tags;
bool flag = false;
if (tags.ContainsKey("building") && !tags.IsFalse("building") || tags.ContainsKey("landuse") && !tags.IsFalse("landuse") || (tags.ContainsKey("amenity") && !tags.IsFalse("amenity") || tags.ContainsKey("harbour") && !tags.IsFalse("harbour")) || (tags.ContainsKey("historic") && !tags.IsFalse("historic") || tags.ContainsKey("leisure") && !tags.IsFalse("leisure") || (tags.ContainsKey("man_made") && !tags.IsFalse("man_made") || tags.ContainsKey("military") && !tags.IsFalse("military"))) || (tags.ContainsKey("natural") && !tags.IsFalse("natural") || tags.ContainsKey("office") && !tags.IsFalse("office") || (tags.ContainsKey("place") && !tags.IsFalse("place") || tags.ContainsKey("power") && !tags.IsFalse("power")) || (tags.ContainsKey("public_transport") && !tags.IsFalse("public_transport") || tags.ContainsKey("shop") && !tags.IsFalse("shop") || (tags.ContainsKey("sport") && !tags.IsFalse("sport") || tags.ContainsKey("tourism") && !tags.IsFalse("tourism")))) || (tags.ContainsKey("waterway") && !tags.IsFalse("waterway") || tags.ContainsKey("wetland") && !tags.IsFalse("wetland") || (tags.ContainsKey("water") && !tags.IsFalse("water") || tags.ContainsKey("aeroway") && !tags.IsFalse("aeroway"))))
{
flag = true;
}
if (tags.IsTrue("area"))
{
flag = true;
}
else if (tags.IsFalse("area"))
{
flag = false;
}
if (flag)
{
Feature feature = new Feature((Geometry) new LineairRing((osmObject as CompleteWay).GetCoordinates().ToArray <GeoCoordinate>()), (GeometryAttributeCollection) new SimpleGeometryAttributeCollection((IEnumerable <Tag>)tags));
featureCollection.Add(feature);
break;
}
Feature feature1 = new Feature((Geometry) new LineString((osmObject as CompleteWay).GetCoordinates().ToArray <GeoCoordinate>()), (GeometryAttributeCollection) new SimpleGeometryAttributeCollection((IEnumerable <Tag>)tags));
featureCollection.Add(feature1);
break;
case CompleteOsmType.Relation:
CompleteRelation relation = osmObject as CompleteRelation;
string str;
if (relation.Tags.TryGetValue("type", out str))
{
if (str == "multipolygon")
{
Feature feature2 = this.InterpretMultipolygonRelation(relation);
if (feature2 != null)
{
featureCollection.Add(feature2);
break;
}
break;
}
int num = str == "boundary" ? 1 : 0;
break;
}
break;
}
}
return(featureCollection);
}
/// <summary>
/// Interprets an OSM-object and returns the corresponding geometry.
/// </summary>
/// <param name="osmObject"></param>
/// <returns></returns>
public override GeometryCollection Interpret(CompleteOsmGeo osmObject)
{
// DISCLAIMER: this is a very very very simple geometry interpreter and
// contains hardcoded all relevant tags.
GeometryCollection collection = new GeometryCollection();
TagsCollectionBase tags;
if (osmObject != null)
{
switch (osmObject.Type)
{
case CompleteOsmType.Node:
TagsCollection newCollection = new TagsCollection(
osmObject.Tags);
newCollection.RemoveKey("FIXME");
newCollection.RemoveKey("node");
newCollection.RemoveKey("source");
if (newCollection.Count > 0)
{ // there is still some relevant information left.
collection.Add(new Point((osmObject as CompleteNode).Coordinate));
}
break;
case CompleteOsmType.Way:
tags = osmObject.Tags;
bool isArea = false;
if ((tags.ContainsKey("building") && !tags.IsFalse("building")) ||
(tags.ContainsKey("landuse") && !tags.IsFalse("landuse")) ||
(tags.ContainsKey("amenity") && !tags.IsFalse("amenity")) ||
(tags.ContainsKey("harbour") && !tags.IsFalse("harbour")) ||
(tags.ContainsKey("historic") && !tags.IsFalse("historic")) ||
(tags.ContainsKey("leisure") && !tags.IsFalse("leisure")) ||
(tags.ContainsKey("man_made") && !tags.IsFalse("man_made")) ||
(tags.ContainsKey("military") && !tags.IsFalse("military")) ||
(tags.ContainsKey("natural") && !tags.IsFalse("natural")) ||
(tags.ContainsKey("office") && !tags.IsFalse("office")) ||
(tags.ContainsKey("place") && !tags.IsFalse("place")) ||
(tags.ContainsKey("power") && !tags.IsFalse("power")) ||
(tags.ContainsKey("public_transport") && !tags.IsFalse("public_transport")) ||
(tags.ContainsKey("shop") && !tags.IsFalse("shop")) ||
(tags.ContainsKey("sport") && !tags.IsFalse("sport")) ||
(tags.ContainsKey("tourism") && !tags.IsFalse("tourism")) ||
(tags.ContainsKey("waterway") && !tags.IsFalse("waterway")) ||
(tags.ContainsKey("wetland") && !tags.IsFalse("wetland")) ||
(tags.ContainsKey("water") && !tags.IsFalse("water")) ||
(tags.ContainsKey("aeroway") && !tags.IsFalse("aeroway")))
{ // these tags usually indicate an area.
isArea = true;
}
if (tags.IsTrue("area"))
{ // explicitly indicated that this is an area.
isArea = true;
}
else if (tags.IsFalse("area"))
{ // explicitly indicated that this is not an area.
isArea = false;
}
if (isArea)
{ // area tags leads to simple polygon
LineairRing lineairRing = new LineairRing((osmObject as CompleteWay).GetCoordinates().ToArray <GeoCoordinate>());
lineairRing.Attributes = new SimpleGeometryAttributeCollection(tags);
collection.Add(lineairRing);
}
else
{ // no area tag leads to just a line.
LineString lineString = new LineString((osmObject as CompleteWay).GetCoordinates().ToArray <GeoCoordinate>());
lineString.Attributes = new SimpleGeometryAttributeCollection(tags);
collection.Add(lineString);
}
break;
case CompleteOsmType.Relation:
CompleteRelation relation = (osmObject as CompleteRelation);
tags = relation.Tags;
string typeValue;
if (tags.TryGetValue("type", out typeValue))
{ // there is a type in this relation.
if (typeValue == "multipolygon")
{ // this relation is a multipolygon.
Geometry geometry = this.InterpretMultipolygonRelation(relation);
if (geometry != null)
{ // add the geometry.
collection.Add(geometry);
}
}
else if (typeValue == "boundary")
{ // this relation is a boundary.
}
}
break;
}
}
return(collection);
}
/// <summary>
/// Interprets an OSM-object and returns the corresponding geometry. Returns null on a failure.
/// </summary>
public Geometry Interpret(ICompleteOsmGeo osmObject)
{
// DISCLAIMER: this is a very very very simple geometry interpreter and
// contains hardcoded all relevant tags.
if (osmObject == null)
{
return(null);
}
switch (osmObject.Type)
{
case OsmGeoType.Node:
var newCollection = new TagsCollection(
osmObject.Tags);
newCollection.RemoveKey("FIXME");
newCollection.RemoveKey("node");
newCollection.RemoveKey("source");
if (newCollection.Count > 0)
{ // there is still some relevant information left.
return(new Point((osmObject as OsmSharp.Node).GetCoordinate()));
}
break;
case OsmGeoType.Way:
if (osmObject.Tags == null || osmObject.Tags.Count == 0)
{
return(null);
}
bool isArea = false;
// check for a closed line if area.
var coordinates = (osmObject as CompleteWay).GetCoordinates();
if (coordinates.Count > 1 && coordinates[0].Equals2D(coordinates[coordinates.Count - 1]))
{ // This might be an area, or just a line that ends where it starts. Look at tags to decide.
if (osmObject.Tags.ContainsAnyKey(areaTags)) //These tags normally default to an area regardless of the value provided.
{
isArea = true;
}
string areaVal = "";
if (osmObject.Tags.TryGetValue("area", out areaVal))
{ // explicitly indicated that this is or isn't an area.
isArea = areaVal == "true";
}
}
if (!isArea && coordinates.Count < 2)
{ // not a linestring, needs at least two coordinates.
}
else if (isArea && coordinates.Count < 4)
{ // not a linearring, needs at least four coordinates, with first and last identical.
}
else
{
if (isArea)
{ // area tags leads to simple polygon
return(new LinearRing(coordinates.ToArray()));
}
else
{ // no area tag leads to just a line.
return(new LineString(coordinates.ToArray()));
}
}
break;
case OsmGeoType.Relation:
var relation = (osmObject as CompleteRelation);
if (relation.Tags == null || relation.Tags.Count == 0)
{
return(null);
}
if (relation.Tags.TryGetValue("type", out var typeValue))
{ // there is a type in this relation.
if (typeValue == "multipolygon" || typeValue == "linearring")
{ // this relation is a multipolygon.
return(InterpretMultipolygonRelationNoRecursion(relation));
}
else if (typeValue == "boundary" && relation.Tags.Contains("boundary", "administrative"))
{ // this relation is a boundary.
return(InterpretMultipolygonRelationNoRecursion(relation));
}
}
break;
default:
throw new ArgumentOutOfRangeException();
}
return(null);
}
