GHS Geometry (.gf, .gft) import/export

GHS geometry (.gf and .gft) files are used to analyze floating vessels (boats, ships, docks).

Import

To open, import, insert, and attach a file as a worksession

From the File menu, click Open or Import.
In the Open dialog box, select the supported file type.
If the import can be configured, click the Options button to specify import settings.
Click Open, or press Enter.
When Rhino opens a non-3dm model, the title bar reflects the name of the model that was opened. When the model is saved for the first time, this model name is entered as the file name.

Style

Mesh

Import the data in the geometry file as a set of meshes.

Body View

Generate 2-D body sections.

Plan View

Generate a 2-D plan (top down) view.

Profile View

Generate a 2-D profile (from side) view.

Wire Frame

Generate 3-D polylines from data in the geometry file.

Attach GHS Data to Meshes

Add GHS geometry file information to the meshes generated on import. This includes all of the hull and tank information (contents, permeability, sounding tubes). This is the same information embedded with the AttachGHSData command.

This is an option only available with the Mesh import option. Using the other modes will contain only the geometry, not the GHS data.

Remove collinear points

Simplify imported polylines by removing collinear points. If three point along a station all lay on the same line, the middle point will be removed.

When a GHS file is imported using the mesh option, it is possible that the mesh may not have the exactly correct join information. You can edit the mesh with the mesh editing commands.

Always use these settings. Do not show this dialog again.

To turn the message back on

Click the Options button in the appropriate Save, Export, Open, Import, or Insert dialog box.

Creating a GHS file is a two-step process

Use the AttachGHSData command to define portions of the hull.
Save or export the data to a GHS file format.

To save a GHS Geometry file

From the File menu, click Export Selected or Save As.
Note: Before saving a GHS Geometry file, GHS data needs to be associated the surfaces or meshes through the AttachGHSData command.
In the Files of type box, select GHS Geometry File (*.gf).
In the File name box, select or type a file name.
Specify what is to be saved.
Save Small
Save geometry only

GHS Part Maker File (PM)

A GHS Part Maker file is a script that is processed by the Part Maker application to create or modify a GHS geometry file. In many cases this is a better alternative than the straight GHS Geometry File export because the script can be modified with a plain text editor such as Notepad to include additional geometric information.