PIAS Manual  2021
Program for the Integral Approach of Shipdesign
Legacy UI

This menu contains deprecated functionality. For normal use of Fairway these functions do not have to be applied — it is even advised not to use them — so this chapter can be skipped.

In this chapter reference is made to “old manual”, which is a Fairway manual from before 2012. The terminology in those days differs slighly from the present; the present ‘curve’ used to be called a ‘line segment’, and the ‘polycurve’ from today was called a ‘line’ in those days.

Alphanumerical manipulation

With this polycurves can be manipulated on a purely alphanumerical level. These operations are only applicable for a single solid, which can be set in the `single selected' cell of the menu [Object management].

This option is deprecated, but still will continue to exist. For the reason that exceptionally it may be handy to be able to browse through points and curves in detail, and that is accomodated by this option. However, for regular use of Fairway this option, and consequently also this manual section, is irrelevant.
Alphanumerical manipulation
1.Edit frames
2.Edit waterlines
3.Edit buttocks
4.Edit diagonals
5.Edit lines in arbitrary planes
6.Edit general 3D lines (deck, chines etc.)

After selecting one of these options an input window appears, where for all polycurves of the selected type, and which are presentin the selected solid, is displayed:

Name of the polycurve
Freely to be entered aor modified.
Here you can see, or enter whether the polycurve is a chine. If a line is defined as a chine, then the lines that are generared afterwards and that intersect this chine, will get a knuckle at this intersection. (please also refer to chine in Lines).
The location of the polycurve is displayed. The location of a frame is the distance from the aft perpendicular to the considered frame. The location of waterlines is the distance from the base to the considered waterline and for a buttock the location is the distance from mid-ship to the considered buttock. The location of a diagonal is the perpendicular distance from the base line to the intersection of the considered diagonal and the centerline. The location of polycurves in a arbitrary planes or of 3D lines are not displayed.
Here the user can toggle the visibility of the line in the GUI, please also see Polycurve visibility.
Plate boundary
here it can be specified whether a line is a plate boundary: a butt or a seam. This information will be used for the automatic generation of plates.
Phantom face
Here it can be specified whether the adjacent face is a phantom face, where we refer to Phantom face for its definition. In this alphanumerical menu, a phantom face is selected by specifying at which side the the polycurve it is located. Where this `side' is defined as the left side or right side, if one would walk on the polycurve in its order, at the outside of the hull surface. As a rule, the order of the deckline is from aft to forward, so the phantom face is located at the left side, because if we would be walking on the deck edge we would have centerline and deck at the left hand side. Please also refer to the definition of left and right in Lines. Here, in the alphanumerical window, only a single phatom face can be defined, contrary to the GUI which supports multiple phantom faces.
Please see Polycurve locked.
Please see Construction Water Line (CWL).
Deck at side
Please see Deck at side.

The menu bar contains a number of supporting functions. Their functionality is nowadays not relevant anymore, if neccessary elucidation can be found in the old manual, in the section titled "Main menu option 1: Alphanumerical manipulation". The same applies for the window with the polycurve points and weight factors, which can be entered by pressing <Enter> (or <leftmousebutton doubleclick>) with the text cursor located on the desired polycurve.