Sub-bottom and multibeam data may be ran simultaneously but that does not necessarily mean that files are written out at the same instances. For example, let's say the multibeam files were written out automatically every 30 min. Then which sub-bottom file(s) belongs to that multibeam file?
Using “jview -navlook” I was first manually trying to match a whole bunch of sub-bottom and multibeam data but this soon become really annoying. The “FindMatchingNav” script takes care of this now. All you do is give it the nav-file you want to match and the path to a decnav folder where you suspect the matching decnav files live. Matching decnav files will then be printed on screen.
FindMatchingNav file.nav project/system/decnav/
This does assume you have the decnav-files organized per day-of-year fashion (as is done default with most of our projects). The script uses getSOLEOL which I've made to return unix timestamps of the first and last nav fix.
Get FindMatchingNav here.
Get getSOLEOL here.
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