Oceanic SAMM, Руководство пользователя

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SAMM User Manual
14
3 The Graphical User Interface
Before viewing or acquiring data, take a moment to familiarize yourself with the SAMM GUI
(Figure 3). The SAMM interface has a main toolbar, a mosaic window, a status bar, and
ancillary windows with controls which will appear in the sidebar. Some elements are specific to
the acquisition or playback modes. Each element of the GUI is described in a section below.
Figure 3. Graphical User Interface
3.1 Mosaic Window
The multilayer interactive mosaic window shows a geocoded graphic of the geocoded data, plus
any loaded background charts and images. SAMM layers processed sonar data over a
background (navigational chart or aerial imagery) as raw data are collected or loaded. Sections
of the survey track that have been processed from the raw data are referred to as
swaths . All of
the swaths from a survey are referred to as the mosaic , or the processed dataset. The
procedure of drawing the swaths in the mosaic window is called mosaicking the swaths. SAMM
only logs or records data when in acquisition mode, not in playback mode, but mosaics swaths
in both acquisition and playback mode.
In playback and acquisition mode, a green outlined polygon represents the vessel. For
sidescan systems the scan should appear to either side of the vessel, adjusted for any offsets.
For forward look systems a section of the sonar data shown in the plan position indicator (PPI)
will appear. The PPI is a pie-shaped “flashlight” view of the sonar data, also found in the
Forward Look window. Pink outlined crosshairs represent the positions of the GPS antenna and
the sonar head.

To see the vessel, data, GPS and sonar head positions, zoom out by rolling your mouse
wheel toward you, clicking the Zoom out icon on the toolbar, pressing the - key, or using
a two finger scroll away from you on a laptop track pad.
Toolbar
Side
bar
Status Bar
Mosaic Window
Waterfall Window
Contacts Window