toOptionsJSON method

Implementation

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

  if (borderColor != null) {
    buffer.writeAll(['"borderColor":', jsonEncode(borderColor), ','], '');
  }
  if (borderDashStyle != null) {
    buffer.writeAll(
        ['"borderDashStyle":', jsonEncode(borderDashStyle), ','], '');
  }
  if (borderWidth != null) {
    buffer.writeAll(['"borderWidth":', borderWidth, ','], '');
  }
  if (color != null) {
    buffer.writeAll(['"color":', jsonEncode(color), ','], '');
  }
  if (colorVariation != null) {
    buffer.writeAll(['"colorVariation":', colorVariation?.toJSON(), ','], '');
  }
  if (dataLabels != null) {
    buffer.writeAll(['"dataLabels":', dataLabels?.toJSON(), ','], '');
  }
  if (layoutAlgorithm != null) {
    buffer.writeAll(
        ['"layoutAlgorithm":', jsonEncode(layoutAlgorithm), ','], '');
  }
  if (layoutStartingDirection != null) {
    buffer.writeAll([
      '"layoutStartingDirection":',
      jsonEncode(layoutStartingDirection),
      ','
    ], '');
  }
  if (level != null) {
    buffer.writeAll(['"level":', level, ','], '');
  }
}