Dirk Hohndel dirk at hohndel.org
Sun Jan 13 16:30:13 PST 2013

Jan Schubert <Jan.Schubert at GMX.li> writes:

> This adds support to display MOD, EAD, AND and EADD in the mouse over dialog:
> - MOD: Maximum Operation Depth based on a configurable limit
> - EAD: Equivalent Air Depth considering N2 and (!) O2 narcotic
> - END: Equivalent Nitrogen (Narcotic) Depth considering just N2 narcotic
> (ignoring O2)
> - EADD: Equivalent Air Density Depth
> Please note that some people and even diving organisations have opposite definitions for EAD and END. Considering A stands for Air, lets choose the above. And considering N for Nitrogen it also fits in this scheme.
> This patch moves N2_IN_AIR from deco.c to dive.h as this is already used in several places and might be useful for future use also. It also respecifies N2_IN_AIR to a more
> correct value of 78,084%, the former one also included all other gases than oxygen appearing in air. If someone needs to use the former value it would be more correct to use 1-O2_IN_AIR instead.
> Signed-off-by: Jan Schubert / Jan.Schubert at GMX.li

This still didn't apply cleanly but I made it work.
Maybe I broke something when I did that - but I can't seem to make sense
of the numbers it displays. Especially EADD. It's 0 for a while and then
suddenly jumps to >2000m and slowly decreases (but non-monotonic) from


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