private static Position FetchCoordinates(JArray arr, PositionType hint)
{
if (arr == null || arr.Count <= 0)
{
return((Position)null);
}
if (arr[0].Type != JTokenType.Array)
{
try
{
return(new Position(Extensions.Value <double>((IEnumerable <JToken>)arr[0]), Extensions.Value <double>((IEnumerable <JToken>)arr[1]), hint));
}
catch
{
}
return((Position)null);
}
PositionSet positionSet = new PositionSet(hint);
foreach (JToken jtoken in arr)
{
if (jtoken != null && jtoken.Type == JTokenType.Array)
{
Position position = GeoJsonUtils.FetchCoordinates(jtoken as JArray);
if (position != null)
{
positionSet.Positions.Add(position);
}
}
}
return((Position)positionSet);
}
public static JObject ToGeoJson(IGeometry2 <double> geom)
{
if (geom is Geometry2Bag <double> )
{
return(GeoJsonUtils.ToGeoJson(geom as Geometry2Bag <double>));
}
if (geom is PolygonBag2 <double> )
{
return(GeoJsonUtils.ToGeoJson(geom as PolygonBag2 <double>));
}
if (geom is Polygon2 <double> )
{
return(GeoJsonUtils.ToGeoJson(geom as Polygon2 <double>));
}
if (geom is Polyline2 <double> )
{
return(GeoJsonUtils.ToGeoJson(geom as Polyline2 <double>));
}
if (geom is PolylineBag2 <double> )
{
return(GeoJsonUtils.ToGeoJson(geom as PolylineBag2 <double>));
}
if (geom is Point2 <double> )
{
return(GeoJsonUtils.ToGeoJson(geom as Point2 <double>));
}
if (geom is PointBag2 <double> )
{
return(GeoJsonUtils.ToGeoJson(geom as PointBag2 <double>));
}
return((JObject)null);
}
public static JObject ParseGeoJson(string json)
{
JObject o = JToken.Parse(json) as JObject;
if (o != null)
{
return(GeoJsonUtils.ExtractGeoJson(o));
}
return((JObject)null);
}
public static IGeometry2 <double> ParseGeometry(string json)
{
JObject o = GeoJsonUtils.ParseGeoJson(json);
if (o != null)
{
return(GeoJsonUtils.ExtractGeometry(o));
}
return(null);
}
public static JObject ToGeoJson(Geometry2Bag <double> geom)
{
if (geom == null)
{
return((JObject)null);
}
JObject jobject = new JObject();
jobject.Add("type", (JToken) new JValue("GeometryCollection"));
JArray jarray = new JArray();
jobject.Add("geometries", (JToken)jarray);
foreach (IGeometry2 <double> geometry in geom)
{
JToken jtoken;
if (geometry is PolygonBag2 <double> )
{
jtoken = (JToken)GeoJsonUtils.ToGeoJson(geometry as PolygonBag2 <double>);
}
else if (geometry is Polygon2 <double> )
{
jtoken = (JToken)GeoJsonUtils.ToGeoJson(geometry as Polygon2 <double>);
}
else if (geometry is Polyline2 <double> )
{
jtoken = (JToken)GeoJsonUtils.ToGeoJson(geometry as Polyline2 <double>);
}
else if (geometry is PolylineBag2 <double> )
{
jtoken = (JToken)GeoJsonUtils.ToGeoJson(geometry as PolylineBag2 <double>);
}
else if (geometry is Point2 <double> )
{
jtoken = (JToken)GeoJsonUtils.ToGeoJson(geometry as Point2 <double>);
}
else
{
if (!(geometry is PointBag2 <double>))
{
return(null);
}
jtoken = (JToken)GeoJsonUtils.ToGeoJson(geometry as PointBag2 <double>);
}
if (jtoken == null)
{
return(null);
}
jarray.Add(jtoken);
}
return(jobject);
}
private static Position FetchCoordinates(JArray arr)
{
return(GeoJsonUtils.FetchCoordinates(arr, PositionType.Unknown));
}
public static JObject ExtractGeoJson(JObject o)
{
if (o != null)
{
JToken jtoken1 = o["type"];
JObject jobject1 = (JObject)null;
if (jtoken1 != null && jtoken1.Type == JTokenType.String)
{
string str = jtoken1.ToString();
if (!string.IsNullOrEmpty(str))
{
if ("Point" == str || "Polygon" == str || ("LineString" == str || "MultiLineString" == str) || ("MultiPoint" == str || "MultiPolygon" == str || "GeometryCollection" == str))
{
return(o);
}
JToken jtoken2 = o["crs"];
if (jtoken2 != null && jtoken2.Type == JTokenType.Object)
{
jobject1 = jtoken2 as JObject;
}
if ("Feature" == str)
{
JToken jtoken3 = o["geometry"];
if (jtoken3 != null && jtoken3.Type == JTokenType.Object)
{
o = GeoJsonUtils.ExtractGeoJson(jtoken3 as JObject);
if (o != null)
{
if (jobject1 != null)
{
JToken jtoken4 = o["crs"];
if (jtoken4 == null || jtoken4.Type == JTokenType.None || jtoken4.Type == JTokenType.Null)
{
o.Add("crs", (JToken)jobject1);
}
}
return(o);
}
}
}
else if ("FeatureCollection" == str)
{
JToken jtoken3 = o["features"];
if (jtoken3 != null && jtoken3.Type == JTokenType.Array)
{
JArray jarray1 = jtoken3 as JArray;
if (jarray1 != null && jarray1.Count > 0)
{
JArray jarray2 = new JArray();
JObject jobject2 = new JObject();
jobject2.Add("type", (JToken)"GeometryCollection");
jobject2.Add("geometries", (JToken)jarray2);
if (jobject1 != null)
{
jobject2.Add("crs", (JToken)jobject1);
}
foreach (JToken jtoken4 in jarray1)
{
if (jtoken4 != null && jtoken4.Type == JTokenType.Object)
{
JToken jtoken5 = (JToken)GeoJsonUtils.ExtractGeoJson(jtoken4 as JObject);
if (jtoken5 != null)
{
jarray2.Add(jtoken5);
}
}
}
return(jobject2);
}
}
}
}
}
}
return((JObject)null);
}
public static IGeometry2 <double> ExtractGeometry(JObject o)
{
IGeometry2 <double> geometry1 = null;
o = GeoJsonUtils.ExtractGeoJson(o);
if (o != null)
{
JObject jobject = (JObject)null;
string str1 = (string)null;
KeyValuePair <string, JObject> crs = GeoJsonUtils.GetCrs(o);
if (crs.Key != null)
{
jobject = crs.Value;
str1 = crs.Key;
}
JToken jtoken1 = o["type"];
if (jtoken1 != null && jtoken1.Type == JTokenType.String)
{
string str2 = jtoken1.ToString();
if (!string.IsNullOrEmpty(str2))
{
string str3 = str2;
if (str3 == "Feature")
{
JToken jtoken2 = o["geometry"];
if (jtoken2 == null || jtoken2.Type != JTokenType.Object)
{
return(null);
}
JObject o1 = jtoken2 as JObject;
if (jobject != null)
{
o1["crs"] = (JToken)jobject;
}
return(GeoJsonUtils.ExtractGeometry(o1));
}
if (str3 == "FeatureCollection")
{
JToken jtoken2 = o["features"];
if (jtoken2 != null && jtoken2.Type == JTokenType.Array)
{
JArray jarray = (JArray)jtoken2;
List <IGeometry2 <double> > list = new List <IGeometry2 <double> >();
foreach (JToken jtoken3 in jarray)
{
if (jtoken3 != null && jtoken3.Type == JTokenType.Object)
{
JObject o1 = jtoken2 as JObject;
if (jobject != null && o1["crs"] == null)
{
o1["crs"] = (JToken)jobject;
}
IGeometry2 <double> geometry2 = GeoJsonUtils.ExtractGeometry(o1);
if (geometry2 == null)
{
return(null);
}
list.Add(geometry2);
}
}
//return (Geometry)(Geometry.DefaultFactory.CreateGeometryCollection((IGeometry[])list.ToArray()) as GeometryCollection);
return(null); //right now we can't handle mixed geometry types
}
}
else if (str3 == "GeometryCollection")
{
JToken jtoken2 = o["geometries"];
if (jtoken2 != null && jtoken2.Type == JTokenType.Array)
{
JArray jarray = (JArray)jtoken2;
List <IGeometry2 <double> > list = new List <IGeometry2 <double> >();
foreach (JToken jtoken3 in jarray)
{
if (jtoken3 != null && jtoken3.Type == JTokenType.Object)
{
JObject o1 = jtoken2 as JObject;
if (jobject != null && o1["crs"] == null)
{
o1["crs"] = (JToken)jobject;
}
IGeometry2 <double> geometry2 = GeoJsonUtils.ExtractGeometry(o1);
if (geometry2 == null)
{
return(null);
}
list.Add(geometry2);
}
}
//return (Geometry)(Geometry.DefaultFactory.CreateGeometryCollection((IGeometry[])list.ToArray()) as GeometryCollection);
return(null); //right now we can't handle mixed geometry types
}
}
else
{
JToken jtoken2 = o["coordinates"];
if (jtoken2 != null && jtoken2.Type == JTokenType.Array)
{
JArray arr = jtoken2 as JArray;
if (arr != null)
{
if ("Point" == str2)
{
geometry1 = GeometryUtils.BuildPoint(GeoJsonUtils.FetchCoordinates(arr, PositionType.Point));
}
else if ("MultiPoint" == str2)
{
geometry1 = GeometryUtils.BuildMultiPoint(GeoJsonUtils.FetchCoordinates(arr, PositionType.MultiPoint));
}
else if ("LineString" == str2)
{
geometry1 = GeometryUtils.BuildLineString(GeoJsonUtils.FetchCoordinates(arr, PositionType.LineString));
}
else if ("MultiLineString" == str2)
{
geometry1 = GeometryUtils.BuildMultiLineString(GeoJsonUtils.FetchCoordinates(arr, PositionType.MultiLineString));
}
else if ("Polygon" == str2)
{
geometry1 = GeometryUtils.BuildPolygon(GeoJsonUtils.FetchCoordinates(arr, PositionType.Polygon));
}
else if ("MultiPolygon" == str2)
{
geometry1 = GeometryUtils.BuildMultiPolygon(GeoJsonUtils.FetchCoordinates(arr, PositionType.MultiPolygon));
}
//if (geometry1 != null && jobject != null)
// geometry1.UserData = (object)str1; //TODO - deal with the JTable issue
return(geometry1);
}
}
}
}
}
}
return(null);
}
