/// <summary>
/// Reads GeoJson and returns the geometry.
/// </summary>
/// <param name="jsonReader"></param>
/// <returns></returns>
internal static Geometry ReadGeometry(JsonReader jsonReader)
{
var geometryType = string.Empty;
var coordinates = new List <object>();
List <Geometry> geometries = null;
while (jsonReader.Read())
{
if (jsonReader.TokenType == JsonToken.EndObject)
{ // end of geometry.
break;
}
if (jsonReader.TokenType == JsonToken.PropertyName)
{
if ((string)jsonReader.Value == "type")
{ // the geometry type.
geometryType = jsonReader.ReadAsString();
}
else if ((string)jsonReader.Value == "geometries")
{ // the geometries if a geometry collection.
geometries = GeoJsonConverter.ReadGeometryArray(jsonReader);
}
else if ((string)jsonReader.Value == "coordinates")
{ // the coordinates.
jsonReader.Read(); // move to first array start.
coordinates = GeoJsonConverter.ReadCoordinateArrays(jsonReader);
}
}
}
// data has been read, instantiate the actual object.
switch (geometryType)
{
case "Point":
return(GeoJsonConverter.BuildPoint(coordinates));
case "LineString":
return(GeoJsonConverter.BuildLineString(coordinates));
case "Polygon":
return(GeoJsonConverter.BuildPolygon(coordinates));
case "MultiPoint":
return(GeoJsonConverter.BuildMultiPoint(coordinates));
case "MultiLineString":
return(GeoJsonConverter.BuildMultiLineString(coordinates));
case "MultiPolygon":
return(GeoJsonConverter.BuildMultiPolygon(coordinates));
case "GeometryCollection":
return(GeoJsonConverter.BuildGeometryCollection(geometries));
}
throw new Exception(string.Format("Unknown geometry type: {0}", geometryType));
}
/// <summary>
/// Builds the geometry from the given coordinates.
/// </summary>
/// <param name="coordinates"></param>
/// <returns></returns>
internal static MultiPolygon BuildMultiPolygon(List <object> coordinates)
{
if (coordinates == null)
{
throw new ArgumentNullException();
}
if (coordinates.Count >= 1)
{
var polygons = new List <Polygon>();
foreach (List <object> coordinates1 in coordinates)
{
polygons.Add(GeoJsonConverter.BuildPolygon(coordinates1));
}
return(new MultiPolygon(polygons));
}
throw new Exception("Invalid coordinate collection.");
}
internal static MultiPolygon BuildMultiPolygon(List <object> coordinates)
{
if (coordinates == null)
{
throw new ArgumentNullException();
}
if (coordinates.Count < 1)
{
throw new Exception("Invalid coordinate collection.");
}
List <Polygon> polygonList = new List <Polygon>();
foreach (List <object> coordinate in coordinates)
{
polygonList.Add(GeoJsonConverter.BuildPolygon(coordinate));
}
return(new MultiPolygon((IEnumerable <Polygon>)polygonList));
}
internal static Geometry ReadGeometry(JsonReader jsonReader)
{
string s = string.Empty;
List <object> coordinates = new List <object>();
List <Geometry> geometries = (List <Geometry>)null;
while (jsonReader.Read() && jsonReader.TokenType != JsonToken.EndObject)
{
if (jsonReader.TokenType == JsonToken.PropertyName)
{
if ((string)jsonReader.Value == "type")
{
s = jsonReader.ReadAsString();
}
else if ((string)jsonReader.Value == "geometries")
{
geometries = GeoJsonConverter.ReadGeometryArray(jsonReader);
}
else if ((string)jsonReader.Value == "coordinates")
{
jsonReader.Read();
coordinates = GeoJsonConverter.ReadCoordinateArrays(jsonReader);
}
}
}
// ISSUE: reference to a compiler-generated method
long stringHash = s.GetHashCode();// \u003CPrivateImplementationDetails\u003E.ComputeStringHash(s);
if (stringHash <= 2386032169U)
{
if ((int)stringHash != 1547714260)
{
if ((int)stringHash != 2050635977)
{
if ((int)stringHash == -1908935127 && s == "Polygon")
{
return((Geometry)GeoJsonConverter.BuildPolygon(coordinates));
}
}
else if (s == "MultiLineString")
{
return((Geometry)GeoJsonConverter.BuildMultiLineString(coordinates));
}
}
else if (s == "MultiPolygon")
{
return((Geometry)GeoJsonConverter.BuildMultiPolygon(coordinates));
}
}
else if (stringHash <= 3786658501U)
{
if ((int)stringHash != -600749884)
{
if ((int)stringHash == -508308795 && s == "GeometryCollection")
{
return((Geometry)GeoJsonConverter.BuildGeometryCollection(geometries));
}
}
else if (s == "MultiPoint")
{
return((Geometry)GeoJsonConverter.BuildMultiPoint(coordinates));
}
}
else if ((int)stringHash != -358027471)
{
if ((int)stringHash == -200799438 && s == "LineString")
{
return((Geometry)GeoJsonConverter.BuildLineString(coordinates));
}
}
else if (s == "Point")
{
return((Geometry)GeoJsonConverter.BuildPoint(coordinates));
}
throw new Exception(string.Format("Unknown geometry type: {0}", (object)s));
}
