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VPMB in profile: deepest ceiling occurs just after bottom time

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This lets us calculate deco_time for real dives closer to the planner value.

Signed-off-by: Rick Walsh <rickmwalsh@gmail.com>
This commit is contained in:
Rick Walsh 2017-11-02 21:26:30 +11:00 • committed by Robert C. Helling
parent 4a727c64d9
commit e365cac54e
1 changed files with 4 additions and 2 deletions
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6
core/profile.c
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@ -1085,8 +1085,10 @@ void calculate_deco_information(struct dive *dive, struct divecomputer *dc, stru
deco_time = pi->maxtime + final_tts - time_deep_ceiling;
else if (time_clear_ceiling > 0)
/* Consistent with planner, deco_time ends after ascending (20s @9m/min from 3m)
at end of whole minute after clearing ceiling */
deco_time = ROUND_UP(time_clear_ceiling, 60) + 20 - time_deep_ceiling;
* at end of whole minute after clearing ceiling. The deepest ceiling when planning a dive
* comes typically 10-60s after the end of the bottom time, so add 20s to the calculated
* deco time. */
deco_time = ROUND_UP(time_clear_ceiling - time_deep_ceiling + 20, 60) + 20;
vpmb_next_gradient(deco_time, surface_pressure / 1000.0);
final_tts = 0;
last_ndl_tts_calc_time = 0;