fieldsToJson method

@override Map<String, Object?> fieldsToJson()

Subtype-specific JSON fields, merged into the tagged map.

Implementation

@override
Map<String, Object?> fieldsToJson() => {
  'angle': angle.toJson(),
  'range': range.toJson(),
  'axis': axis,
  if (axisBind != null) 'axisBind': axisBind,
};