Basic Compartment Generation

The method, Slice, we will follow to generate a basic compartment, is to specify a point within the compartment and let Surface/Compartment automatically select the nearest limits. This will speed up the process of defining the compartment.

Note:
However, that in the event that Surface/Compartment 'guesses' a boundary incorrectly, we can edit the definition of the compartment (as we did for an internal) by selecting the appropriate limit.

This method involves the use of Slice mode in graphics views. This particular viewing mode has been created to simplify visualization of bulkhead placements, and compartmentation generation. It is however not a prerequisite for compartment generation as other methods are available.

To locate a position within a compartment we require two orthogonal views, for example one starboard and one bow. Open two other graphics windows via the menu item: WINDOW \ NEW GRAPHICS WINDOW, then move and resize the graphics windows you have, to look something like the arrangement shown in Figure 3:4 below.

Figure 3:4. Suggested graphics view arrangement.

Ensure that the two appropriate windows are set to display the bow orientation (select BOW from the pop-up menu) and starboard orientation (select STARBOARD from the pop-up menu) orientations. Now these two windows must be set to Slice mode, by selecting the Slice option in the Modes page of the graphics view’s Options dialog, (pop-up menu item OPTIONS...). In this mode, the graphics views show the vessel as if it had been sliced at the specified planar position. These positions can be specified in the X, Y and Z edit fields in the Slice Positions panel of the Modes page.

1. Open the Compartment Editor dialog (menu: COMPARTMENTATION \ COMPARTMENTS \ EDITOR...). Set the dialog mode to Create and select the Basic page. In the Creation Method panel, select the option Slice.

2. Now enter relevant values, for the compartment to be created, into the edit fields, ID (no more than 8 characters and must not contain any spaces), Title (long description), and Permeabilities. Two permeabilities can be set, Structural (to take account of structural permeability, for 2% structural allowance set permeability to 98) and Damage (used in damage calculations).

   Note:
   A Category can be selected from the defined set, see Compartment Categories.

3. The red cross-hairs in the two orthogonal graphics windows, are used to define the location within the compartment to be defined. Thus they must be moved to the correct position before clicking the Apply button on the Basic page of the Compartment Editor dialog. This is done either by:

   • interactively moving a cross-hair - use the Left Mouse button (to select the red cross-hairs) and while holding the button down, move the mouse to drag them, or alternatively

   • open the Options Dialog, (graphics window pop-up menu: OPTIONS...) and enter the required positions in the X, Y and Z edit fields in the Slice Positions panel of the Modes page. Click OK to close the dialog and effect the change.

4. This process (steps 2 and 3; note that the Slice option will remain selected) can be repeated to generate all your compartments.

The other creation methods available are Predefined and Interactive, which still require step 2 above but differ in the selection of the constraints. for further information see Compartment Editor Dialog Basic Page.