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NMEA Sailboat perfo...
 

NMEA Sailboat performance data to polar/strip charts and more  

 

fogmachine
(@fogmachine)
Active Member
Joined: 2 years ago
Posts: 6
November 15, 2019 3:55 pm  

It's become easy to record NMEA data on racing sailboats so I've written some code in an attempt to make the data useful. polarize processes NMEA-0183 or NMEA-2000 data files into polar graphs, strip charts, gpx track files, spreadsheets with leg-by-leg, board-by-board, and minute-by-minute breakdowns.

Relive past races! See if instruments read the same on both tacks (ours don't)! Compare measured performance to your ORR certificate!

Check it out: Polarize on GitHub

Not a fancy app - requires command line use, Python3 and a few external Python libraries.

1573851312-Mayan_aggregate_polars.png

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Dan Corcoran
(@dan-corcoran)
Eminent Member
Joined: 2 years ago
Posts: 31
November 21, 2019 5:43 pm  

Can Expedition Strip chart logs be used as input?


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fogmachine
(@fogmachine)
Active Member
Joined: 2 years ago
Posts: 6
November 21, 2019 6:22 pm  

I don't have Expedition so I've no idea what format they're in. Overall, the strip charts are cooked from raw data; if Expedition can save its raw NMEA input streams then Polarize should be able to process them.


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