fill method
Implementation
@override
OpSet fill(List<PointD> points) {
final HatchFiller hatchFiller = HatchFiller(_config);
final FillerConfig rotatedConfig = _config.copyWith(
hachureAngle: _config.hachureAngle + 90,
);
final HatchFiller rotatedHatchFiller = HatchFiller(rotatedConfig);
final OpSet first = hatchFiller.fill(points);
final OpSet second = rotatedHatchFiller.fill(points);
return OpSet(
type: OpSetType.fillSketch,
ops: [...first.ops, ...second.ops],
);
}