Model-building tools

In order to perform hydrostatic calculations, it is necessary to create a geometrical model of the ship hull in question. If tank loads and/or damage are to be considered, the appropriate internal spaces must be modeled as well.

The geometrical models consist of one or more series of cross- sectional curves. GHS comes with powerful model-building tools which facilitate a variety of means of entering the data which define these curves:

Section Editor is a graphical CAD-like tool for creating or modifying sectional curves. It provides for direct entry of offsets (in several unit formats) an well as easy keyboard drawing. It also interfaces to digitizers through ADI drivers. This tool is most often used to create hull models, though it may be applied to other parts of the model, such as tanks, as sell.
Part Maker is a powerful, yet easily-used, command-oriented tool for creating any part of the model. It is especially suited to creating external appendages and internal tanks. It incorporates a graphical display facility which allows every aspect of the geometrical model to be examined graphically on the screen and printer.
Model Converter imports geometrical data from non-GHS formats, including DXF. It also exports from the GHS format to DXF and other formats.
Hull Maker is an alternative tool for generating barge hulls. Unlike Section Editor and Part Maker, it creates an entire hull model from a parametric specification.