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Hull and Outfitting

Specifying How Arcs and Circles are Represented

  • Last UpdatedNov 24, 2025
  • 1 minute read

Most plotters are unable to plot true circular arcs and instead represent them by a series of straight lines (chords). The more chords used, the closer the approximation to a true arc.

By default, a complete circle is represented in a plot by 90 chords.

  • To specify a different representation, use the following option:

    ARCSize integer

    Where: integer = The number of chords per complete circle. This must be in the range 12 to 175.

    For example, ARCS 120 will plot smoother arcs than the default setting; ARCS 25 will plot less smooth arcs, but will reduce the plotting time.

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