minute_lines.dart

void _drawMinutesLine(Canvas canvas) {
    for (int minute = 1; minute <= Constants.numberOfMinutes; minute++) {
      final double _theta = Constants.angleBetweenEachMinuteLine * minute;
      final double _radiusOfInnerPoint = _getInnerPointRadiusOfMinuteLine(minute);

      final Offset _extremePoint =
          GetOffset.getOffsetWithRadiusAndTheta(radius: _minuteLineExtremePointRadius, theta: _theta);
      final Offset _innerPoint = GetOffset.getOffsetWithRadiusAndTheta(radius: _radiusOfInnerPoint, theta: _theta);
      
      canvas.drawLine(_extremePoint, _innerPoint, _paint);
    }
  }