toJson method

@override Map<String, dynamic> toJson()

Implementation

@override
Map<String, dynamic> toJson() {
  final json = <String, dynamic>{};

  void addIfPresent(String fieldName, dynamic value) {
    if (value != null) {
      json[fieldName] = value;
    }
  }

  addIfPresent('circle-radius', circleRadius);
  addIfPresent('circle-color', circleColor);
  addIfPresent('circle-blur', circleBlur);
  addIfPresent('circle-opacity', circleOpacity);
  addIfPresent('circle-translate', circleTranslate);
  addIfPresent('circle-translate-anchor', circleTranslateAnchor);
  addIfPresent('circle-pitch-scale', circlePitchScale);
  addIfPresent('circle-pitch-alignment', circlePitchAlignment);
  addIfPresent('circle-stroke-width', circleStrokeWidth);
  addIfPresent('circle-stroke-color', circleStrokeColor);
  addIfPresent('circle-stroke-opacity', circleStrokeOpacity);
  addIfPresent('circle-sort-key', circleSortKey);
  addIfPresent('visibility', visibility);
  return json;
}