From 23ce727e62c5670ca30c487fc9fd52eb25883de5 Mon Sep 17 00:00:00 2001 From: Dirk Hohndel Date: Sun, 13 Jan 2013 16:24:58 -0800 Subject: Add support for MOD, EAD, AND and EADD in the mouse over display - 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@GMX.li Signed-off-by: Dirk Hohndel --- dive.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'dive.h') diff --git a/dive.h b/dive.h index 19a1768cb..c53e19404 100644 --- a/dive.h +++ b/dive.h @@ -11,6 +11,13 @@ #include #include +#define O2_IN_AIR 0.20942 +#define N2_IN_AIR 0.78084 // has been set to 0.7902 before to ignore other components of air +#define O2_DENSITY 1.429 // Gramm/Liter +#define N2_DENSITY 1.251 +#define HE_DENSITY 0.1786 + + /* * Some silly typedefs to make our units very explicit. * -- cgit v1.2.3-70-g09d2