toJson method

Implementation

Map toJson(){
  Map result = {};

  if (faceIndex != null) result.addAll({"faceIndex": faceIndex});
  if (landmarks != null) result.addAll({"landmarks": landmarks});
  if (faceRect != null) result.addAll({"faceRect": faceRect});
  if (rotationAngle != null) result.addAll({"rotationAngle": rotationAngle});
  if (thumbnail != null) result.addAll({"thumbnail": thumbnail});

  return result;
}