Hello, A question to anyone out there who has experience using Vertical Mapper for displaying 3D images of the seafloor:
My problem is this: I can create grids of sounding data to show seafloor relief (derived from multibeam or single-beam data files), however, when I want to display this data with drape files (i.e. airphotos) it appears in the 3D viewer as if the seafloor is raised above the ground. My data for the sounding depths is negative, so why doesn't it appear to 'sink' below the airphoto (which I would presume should be defaulted to ground level; or 'zero'). I can't seem to get any of my drape files (charts, air photos, etc.) to display so the sounding depths appear to be 'below' them. Any suggestions, or am I out of luck? Thanks, Scott
