public Line LineToSpeckle(LineSegment3d line)
        {
            var _line = new Line(PointToSpeckle(line.StartPoint), PointToSpeckle(line.EndPoint), ModelUnits);

            _line.length = line.Length;
            _line.domain = IntervalToSpeckle(line.GetInterval());
            _line.bbox   = BoxToSpeckle(line.OrthoBoundBlock);
            return(_line);
        }