OpenMag

[rgleason]

From Sean 2015 in:
https://github.com/seandepagnier/openmag
an impressive amount of math.

There is some documentation attached.
I think this is for open source instrumentation.

Perhaps Sean can explain in a little detail

[seandepagnier]

this repository is very old and has little to do with boats. For magnetometer calibration look at the pypilot repository:

http://github.com/pypilot/pypilot