**Surfaces** | S | Set of surfaces for averaging | Surface |

**Weights** | W | Collection of weights for each surface | Number |

**Refit** | R | Optional Refit match method.
(No Integer or 0 = Off, Integer greater than 0 = On and surface degree of refit)
If an integer greater than zero, Refit match method is used if possible. When input surfaces are refit their control points are redistributed, added to, and removed from based on the surfaces curvature and the input integer degree, while trying to maintain their shapes. Refit results in tighter shaped averages, with curvature based control point distribution. | Integer |

**Point Sample** | P | Optional Point Sample match method.
(No Integer or 0 = Off, Integer greater than 0 = On and amount of sample points)
If an integer greater than zero, Point Sample match method is used. When input surfaces are sampled their control points are recreated by equally dividing the surface by the input integer point count. Point Sample results in looser shaped averages, with uniform control point distribution. | Integer |