public bool TryWriteGeometry(JsonWriter writer, object value, JsonSerializer serializer)
{
ObjectType geomType = _shapeConverter.GetObjectType(value);
if (!_shapeConverter.CanConvert(geomType))
{
return(false);
}
switch (geomType)
{
case ObjectType.Point:
case ObjectType.LineString:
case ObjectType.Polygon:
case ObjectType.MultiPoint:
case ObjectType.MultiLineString:
case ObjectType.MultiPolygon:
break;
default:
return(false);
}
writer.WriteStartObject();
writer.WritePropertyName("type");
writer.WriteValue(Enum.GetName(typeof(ObjectType), geomType));
writer.WritePropertyName("coordinates");
switch (geomType)
{
case ObjectType.Point:
WriteJsonCoordinate(writer, _shapeConverter.FromPoint(value));
break;
case ObjectType.LineString:
WriteJsonCoordinates(writer, _shapeConverter.FromLineString(value));
break;
case ObjectType.MultiPoint:
WriteJsonCoordinates(writer, _shapeConverter.FromMultiPoint(value));
break;
case ObjectType.Polygon:
WriteJsonCoordinatesEnumerable(writer, _shapeConverter.FromPolygon(value));
break;
case ObjectType.MultiLineString:
WriteJsonCoordinatesEnumerable(writer, _shapeConverter.FromMultiLineString(value));
break;
case ObjectType.MultiPolygon:
WriteJsonCoordinatesEnumerable2(writer, _shapeConverter.FromMultiPolygon(value));
break;
}
writer.WriteEndObject();
return(true);
}
private void AppendLineString(StringBuilder builder, object lineString)
{
var ls = _shapeConverter.FromLineString(lineString);
builder.Append("LINESTRING");
AppendDimensions(builder, GetDimensions(ls));
builder.Append(" ");
AppendLineStringInner(builder, ls);
}
public bool TryWriteGeo(JsonWriter writer, object value, JsonSerializer serializer)
{
var route = value as Route;
if (route != null)
{
writer.WriteStartObject();
writer.WritePropertyName("__geo");
writer.WriteStartObject();
writer.WritePropertyName("type");
writer.WriteValue("Route");
if (route.Metadata.Count > 0)
{
writer.WritePropertyName("metadata");
serializer.Serialize(writer, route.Metadata);
}
writer.WriteEndObject();
writer.WritePropertyName("type");
writer.WriteValue(Enum.GetName(typeof(ObjectType), ObjectType.LineString));
writer.WritePropertyName("coordinates");
WriteJsonCoordinates(writer, _shapeConverter.FromLineString(route.ToLineString()));
writer.WriteEndObject();
return(true);
}
var track = value as Track;
if (track != null)
{
writer.WriteStartObject();
writer.WritePropertyName("__geo");
writer.WriteStartObject();
writer.WritePropertyName("type");
writer.WriteValue("Track");
if (track.Metadata.Count > 0)
{
writer.WritePropertyName("metadata");
serializer.Serialize(writer, track.Metadata);
}
writer.WritePropertyName("times");
writer.WriteStartArray();
foreach (var segment in track.Segments)
{
writer.WriteStartArray();
foreach (var fix in segment.Fixes)
{
writer.WriteValue(fix.TimeUtc);
}
writer.WriteEndArray();
}
writer.WriteEndArray();
writer.WriteEndObject();
writer.WritePropertyName("type");
writer.WriteValue(Enum.GetName(typeof(ObjectType), ObjectType.LineString));
writer.WritePropertyName("coordinates");
WriteJsonCoordinates(writer, _shapeConverter.FromLineString(track.ToLineString()));
writer.WriteEndObject();
return(true);
}
return(false);
}