Triton BathyPro - Manual (Page 78)

BathyPro processes your XTF file(s).
2. From the main menu, choose Project → Save.
BathyPro saves your project file having the same file name as your XTF
file but having a file extension of DTM.
3. From the main menu, choose Project → Exit.
BathyPro exits.
The file you saved can be reopened whenever you choose — perhaps,
for instance, if you decide later to work some more on that project
(adding, deleting, reprocessing files, etc.). Bear in mind that any DTM you
save is a composite profile of the set of files you added to your project. An
implication of this fact is that you can’t use just any old, previously saved
DTM as a container for a new project — the DTM you use always refers
to the specific XTF, XYZ in ASCII format, or DDS_VIF Grid files that were
(or that are about to be) processed in Bathy Pro.
Volume Computations
As an optional convenience, BathyPro has a function to calculate volumes
implied by the contents of DDS_VIF files. That is, the difference between two
DDS_VIF files represents a volume, such as occurs as a result of a before-and-
after dredge survey. Bathy Pro operator can use the Volume function to derive
volumetric differences, in cubic meters, between two DDS_VIF files. The
resulting delta is saved in a third DDS_VIF file.
To calculate a volumetric delta between two DDS_VIF files
1. From the BathyPro main menu, choose Volume → Volume
Computation Settings….
The system displays the Settings Volume Computation Parameters dialog
box (Figure 41).
June 2004 BathyPro User’s Manual
78