private bool TryWriteCircle(object shape, out string result)
{
if (_shapeConverter.CanConvert(ObjectType.Circle) &&
_shapeConverter.GetObjectType(shape) == ObjectType.Circle)
{
var circle = _shapeConverter.FromCircle(shape);
result = string.Format(CultureInfo.InvariantCulture, "CIRCLE({0:F9} {1:F9} d={2:F9})", circle[0], circle[1], circle[2]);
return(true);
}
result = default(string);
return(false);
}
public bool TryWriteFeature(JsonWriter writer, object value, JsonSerializer serializer)
{
if (!_shapeConverter.CanConvert(ObjectType.Feature))
{
return(false);
}
ObjectType geomType = _shapeConverter.GetObjectType(value);
if (geomType != ObjectType.Feature)
{
return(false);
}
writer.WriteStartObject();
writer.WritePropertyName("type");
writer.WriteValue(Enum.GetName(typeof(ObjectType), ObjectType.Feature));
object id;
Dictionary <string, object> props;
var geometry = _shapeConverter.FromFeature(value, out id, out props);
if (id != null)
{
writer.WritePropertyName("id");
serializer.Serialize(writer, id);
}
if (props != null && props.Count > 0)
{
writer.WritePropertyName("properties");
serializer.Serialize(writer, props);
}
writer.WritePropertyName("geometry");
serializer.Serialize(writer, geometry);
writer.WriteEndObject();
return(true);
}
private void AppendGeometry(StringBuilder builder, object geometry)
{
var type = _shapeConverter.GetObjectType(geometry);
if (type == ObjectType.Point)
{
AppendPoint(builder, geometry);
return;
}
//if (_settings.LinearRing)
//{
// var linearRing = geometry as LinearRing;
// if (linearRing != null)
// {
// AppendLinearRing(builder, linearRing);
// return;
// }
//}
if (type == ObjectType.LineString)
{
AppendLineString(builder, geometry);
return;
}
//if (_settings.Triangle)
//{
// var triangle = geometry as Triangle;
// if (triangle != null)
// {
// AppendTriangle(builder, triangle);
// return;
// }
//}
if (type == ObjectType.Polygon)
{
AppendPolygon(builder, geometry);
return;
}
if (type == ObjectType.MultiPoint)
{
AppendMultiPoint(builder, geometry);
return;
}
if (type == ObjectType.MultiLineString)
{
AppendMultiLineString(builder, geometry);
return;
}
if (type == ObjectType.MultiPolygon)
{
AppendMultiPolygon(builder, geometry);
return;
}
if (type == ObjectType.GeometryCollection)
{
AppendGeometryCollection(builder, geometry);
return;
}
throw new SerializationException("Geometry of type '" + geometry.GetType().Name + "' is not supported");
}