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VPM-B ceiling outside of planner: over-estimate deco_time on first iteration

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This means the iterations converge from an over-estimate, consistent with
planning VPM-B dives

Signed-off-by: Rick Walsh <rickmwalsh@gmail.com>
This commit is contained in:
Rick Walsh 2017-10-29 17:47:09 +11:00 committed by Robert C. Helling
parent eb62ced8a1
commit f2535995f0
1 changed files with 4 additions and 2 deletions
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6
core/profile.c
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@ -1028,9 +1028,11 @@ void calculate_deco_information(struct dive *dive, struct divecomputer *dc, stru
if (first_iteration) {
nuclear_regeneration(t1);
vpmb_start_gradient();
/* For CVA calculations, start by guessing deco time = dive time remaining */
/* For CVA calculations, deco time = dive time remaining is a good guess,
but we want to over-estimate deco_time for the first iteration so it
converges correctly, so add 30min*/
if (!in_planner())
deco_time = pi->maxtime - t1;
deco_time = pi->maxtime - t1 + 1800;
vpmb_next_gradient(deco_time, surface_pressure / 1000.0);
}
}