toOptionsJSON method

Implementation

@override
void toOptionsJSON(StringBuffer buffer) {
  super.toOptionsJSON(buffer);

  if (background != null) {
    buffer.write('"background":[');
    for (var item in background!) {
      buffer.writeAll([item.toJSON(), ','], '');
    }
    buffer.write('],');
  }
  if (center != null) {
    buffer.write('"center":[');
    for (var item in center!) {
      buffer.writeAll([jsonEncode(item), ','], '');
    }
    buffer.write('],');
  }
  if (endAngle != null) {
    buffer.writeAll(['"endAngle":', endAngle, ','], '');
  }
  if (innerSize != null) {
    buffer.writeAll(['"innerSize":', jsonEncode(innerSize), ','], '');
  }
  if (size != null) {
    buffer.writeAll(['"size":', jsonEncode(size), ','], '');
  }
  if (startAngle != null) {
    buffer.writeAll(['"startAngle":', startAngle, ','], '');
  }
}