Utilizing Legacy Data

The geometry definition used in Hydrostatics and Hydrodynamics is radically different from that used in versions V1.x and V2.x and in SFOLDS. Whereas these earlier versions used a 9 point patch definition called the GDS file, Calc has been updated to work on a superior triangular facet definition. Notwithstanding this, existing GDS files can still be analyzed in the latest version of Calc. By selecting FILE \ IMPORT \ GEOMETRY FILE from the Calc menu, a dialog appears from which you are able to select the file that contains the desired geometry model. Actually the file that is being imported can be either a GDS file, a FCT file, or a CMP file, the latter being produced by the Initial Design Spaces module.

Note:
In M1 versions of Calc, the GDS file was transformed into a faceted definition. This is no longer the case, as data is now stored and analyzed in the same way as SFOLDS and V1.x and V2.x versions of Calc.

You can also select FILE \ IMPORT \ HCL FILE and in which case Calc will assume that it is a complete data file, then termed an HCL file, from an earlier Calc design. The HCL format can also be used as a convenient means of setting-up certain data such as deck edge, openings and profile points.

The method of establishing the new design, prior to the importation of the GDS file, varies depending on which Calc version or SFOLDS the design is to be derived from. The various methods are described below.