private bool TryReadCircle(string value, out object result)
{
if (!_shapeConverter.CanConvert(ObjectType.Circle))
{
result = null;
return(false);
}
var match = Regex.Match(value,
@"Circle \s* \( \s* ([+-]?(?:\d+\.?\d*|\d*\.?\d+)) \s+ ([+-]?(?:\d+\.?\d*|\d*\.?\d+)) \s+ d=([+-]?(?:\d+\.?\d*|\d*\.?\d+)) \s* \)",
RegexOptions.IgnorePatternWhitespace | RegexOptions.IgnoreCase);
if (match.Success)
{
result = _shapeConverter.ToCircle(new double[]
{
double.Parse(match.Groups[1].Value, CultureInfo.InvariantCulture),
double.Parse(match.Groups[2].Value, CultureInfo.InvariantCulture),
double.Parse(match.Groups[3].Value, CultureInfo.InvariantCulture)
});
return(true);
}
result = null;
return(false);
}
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);
}