2 other processing options, 1 navigation and attitude processing, 2 merge lines – Triton Bathymetry User Manual

Page 27: 3 add lines, 5 remove lines, 6 re-build using, 7 edit gsf using

Advertising
background image

Page 23

5.2 Other Processing Options

Presented here are a few optional processing tools:

5.2.1 Navigation and Attitude Processing

The BathyOne processing wizard is limited for processing navigation data since the user
has no feedback to see how well the processing worked and whether it was too much or not
enough. Perspective also has a new Attitude Editor that allows the user to apply simple
filters to remove spikes and to manually flag points as bad.

For more advance processing, Perspective allows the user to export the navigation and
attitude data to a text file for external processing, great for re-tracking AUV surveys!

5.2.2 Merge Lines

Some sonars or users automatically end their survey lines so they do not grow too large.
For processing, it is often preferred to have the small line segments merged into one line.
This can be done before creating a mosaic using the

Merge

Line toolbar button.

5.2.3 Add Lines

After a grid file is created, additional survey lines can be added using this tool. This is
very useful for multiple day surveys. As new lines are completed they can be processed
and added to the existing grid while the survey progresses. To launch the

Add Lines

tool,

right-click on the bathymetry DTM or CUBE layer in the file tree.

5.2.5 Remove Lines

It is also possible to remove lines from an existing mosaic. This is found by right-clicking
on the survey file in the bathymetry DTM or CUBE layer in the file tree.

5.2.6 Re-build Using

Allows the user to change processing parameters, and re-apply beam flags or used beam
flags from 2D Swath and 3D Area editing. When selected, a dialog pops up asking whether
to use the beam flags in the existing GSF files (will apply edits made), use backup GSF
files to re-create the grid, or create new GSF files with new beam flags (provides option
for saving existing GSFs to backup location).

5.2.7 Edit GSF Using

Similar to Rebuild Using but limits what changes can be made to processing parameters,
and re-creates the grid using beam flags set during 2D Swath and 3D Area editing.

Advertising