Triton Isis Manual do Utilizador descarregar pdf (Página 247)

June 2004 Isis® Sonar User's Manual, Volume 1

233

If you use (enable) slant range, make sure the seafloor bottom is

being tracked correctly. Otherwise, you might not get acceptable

results in your displayed imagery. See 10.7.2 (“Bottom Track and

TVG”on page 258).

10.1.1 Down

In the Down subtype, imagery scrolls from top to bottom and is called a

vertical waterfall. This is the default in Isis.

10.1.2 Across

A waterfall that scrolls its imagery from left to right in its window is called a

horizontal waterfall. Across-scrolling windows are also well-suited for

displaying single-channel subbottom imagery (for example, 3.5 kHz or chirp

subbottom). You can instruct Isis to correct the display of any subbottom

channel for variations in towfish depth. Refer to

‘Depth Delay and

Duration’ (8.2) for details.

Note: If you press [End] while a waterfall is running, it moves to the

end of the file and stops. It is not in Pause mode; it is in end-of-

file mode. It will not restart if you press [spacebar],

even if At

End of File→Go Back to Start has been enabled from the File

menu. To restart the file, press [PageDown], or press [Home], or

choose At End of File→Go to Next File in Time (if another file

already had been loaded), or choose File→ Open and re-open the

file to restart it.

Chapter 10: Using the Window Menu

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Triton Isis Manual do Utilizador Página 247