/// <summary>
/// Generates GeoJson for the given feature.
/// </summary>
/// <param name="feature"></param>
public static string ToGeoJson(this Feature feature)
{
if (feature == null) { throw new ArgumentNullException("feature"); }
var jsonWriter = new JTokenWriter();
GeoJsonConverter.Write(jsonWriter, feature);
return jsonWriter.Token.ToString();
}
private JToken CreateJToken(JsonReader reader, JsonContract contract)
{
ValidationUtils.ArgumentNotNull(reader, "reader");
if (contract != null)
{
if (contract.UnderlyingType == typeof(JRaw))
return JRaw.Create(reader);
if (reader.TokenType == JsonToken.Null
&& !(contract.UnderlyingType == typeof(JValue) || contract.UnderlyingType == typeof(JToken)))
return null;
}
JToken token;
using (JTokenWriter writer = new JTokenWriter())
{
writer.WriteToken(reader);
token = writer.Token;
}
return token;
}
private JToken CreateJObject(JsonReader reader)
{
ValidationUtils.ArgumentNotNull(reader, "reader");
// this is needed because we've already read inside the object, looking for metadata properties
using (JTokenWriter writer = new JTokenWriter())
{
writer.WriteStartObject();
do
{
if (reader.TokenType == JsonToken.PropertyName)
{
string propertyName = (string)reader.Value;
do
{
if (!reader.Read())
break;
} while (reader.TokenType == JsonToken.Comment);
if (CheckPropertyName(reader, propertyName))
continue;
writer.WritePropertyName(propertyName);
writer.WriteToken(reader, true, true);
}
else if (reader.TokenType == JsonToken.Comment)
{
// eat
}
else
{
writer.WriteEndObject();
return writer.Token;
}
} while (reader.Read());
throw JsonSerializationException.Create(reader, "Unexpected end when deserializing object.");
}
}
/// <summary>
/// Generates GeoJson for the given geometry collection.
/// </summary>
/// <param name="geometryCollection"></param>
public static string ToGeoJson(this MultiPoint geometryCollection)
{
if (geometryCollection == null) { throw new ArgumentNullException("geometryCollection"); }
var jsonWriter = new JTokenWriter();
GeoJsonConverter.Write(jsonWriter, geometryCollection);
return jsonWriter.Token.ToString();
}
/// <summary>
/// Generates GeoJson for this geometry.
/// </summary>
/// <param name="geometry"></param>
/// <returns></returns>
public static string ToGeoJson(this LineString geometry)
{
if (geometry == null) { throw new ArgumentNullException("geometry"); }
var jsonWriter = new JTokenWriter();
GeoJsonConverter.Write(jsonWriter, geometry);
return jsonWriter.Token.ToString();
}
