public sealed override IStyleData Calculate(MarkupLine line, ITrajectory trajectory, MarkupLOD lod) => line is MarkupStopLine stopLine?Calculate(stopLine, trajectory, lod) : new MarkupStyleParts();
public override IEnumerable <MarkupStyleDash> Calculate(MarkupLine line, ILineTrajectory trajectory) => line is MarkupStopLine stopLine?Calculate(stopLine, trajectory) : new MarkupStyleDash[0];