Curve Nomenclature

Transverse Sections are identified along the horizontal axis.

• By their relative distance from the station origin on a scale defined by the user.

• By the distance in units (meters, millimeters, feet or inches) from the origin, that means, their constant dimension.

• By the frame number.

Waterlines are identified by the distance in units from the baseline along the vertical Z-axis, for example, the 3 meter Waterline.

Buttocks are identified by the distance in units from the centreline along the athwartships Y-axis, for example, the 5 meter Buttock.

Knuckle, tangent, point line, construction line, camber and sheer line curves and patches are identified by an alphanumeric name of up to eight characters. The name must begin with an alphabetical character, for example, TRANSOM, T1, A1234, CHINE,

Diagonals are identified by an alphanumeric name of up to eight characters. The name must begin with an alphabetic character, for example, DIAGONAL, D1. The name must also be typed when a diagonal view is requested, for example, VIEW Diagonal D1.

Decks are identified in the same way as knuckles, tangents, with an alphanumeric name of up to six characters. Individual deck frames are identified by the alphanumeric deck name and their positions along the x-axis as for sections.

Angle curve names are derived from their associated knuckle or tangent curve and the line-set for which they are defined. See the CREATE ANGLE command in the appendix.