Oceanic SAMM User Manual
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Contents
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SAMM User Manual143 The Graphical User InterfaceBefore 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, andancillary windows with controls which will appear in the sidebar. Some elements are specific tothe acquisition or playback modes. Each element of the GUI is described in a section below.Figure 3. Graphical User Interface3.1 Mosaic WindowThe multilayer interactive mosaic window shows a geocoded graphic of the geocoded data, plusany loaded background charts and images. SAMM layers processed sonar data over abackground (navigational chart or aerial imagery) as raw data are collected or loaded. Sectionsof the survey track that have been processed from the raw data are referred to as swaths. All ofthe swaths from a survey are referred to as the mosaic, or the processed dataset. Theprocedure of drawing the swaths in the mosaic window is called mosaicking the swaths. SAMMonly logs or records data when in acquisition mode, not in playback mode, but mosaics swathsin both acquisition and playback mode.In playback and acquisition mode, a green outlined polygon represents the vessel. Forsidescan 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 theForward Look window. Pink outlined crosshairs represent the positions of the GPS antenna andthe sonar head. To see the vessel, data, GPS and sonar head positions, zoom out by rolling your mousewheel toward you, clicking the Zoom out icon on the toolbar, pressing the - key, or usinga two finger scroll away from you on a laptop track pad.ToolbarSidebarStatus BarMosaic WindowWaterfall WindowContacts Window |
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