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Fix profile and average depth for freedives

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Freedives can easily exceed the assumed ascent/descent rate, which
results in wacky dive profiles.  Add a check to make the ascent and
descent fit within the duration of the dive.
This commit is contained in:
Mikko Rasa
2012-08-29 19:10:26 +03:00
parent 9d46581913
commit d6b50e30e4
2 changed files with 7 additions and 4 deletions
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9
dive.c
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@@ -478,11 +478,12 @@ struct dive *fixup_dive(struct dive *dive)
int asc_desc_time = depth*60/9000;
int duration = dive->duration.seconds;
/* Protect against insane dives - make mean be half of max */
if (duration <= asc_desc_time) {
/* Some sanity checks against insane dives */
if (duration < 2)
duration = 2;
asc_desc_time = 1;
}
if (asc_desc_time * 2 >= duration)
asc_desc_time = duration/2;
dive->meandepth.mm = depth*(duration-asc_desc_time)/duration;
return dive;
}