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Break out of TTS calculation for deco longer than 2h

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If you have a serious deco obligation TTS is not meaningful
anyhow so don't compute it for the profile. In particular not
without gas changes.

Signed-off-by: Robert C. Helling <helling@atdotde.de>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This commit is contained in:
Robert C. Helling 2015-10-12 22:34:15 +02:00 • committed by Dirk Hohndel
parent 1c7bc14af9
commit f1550c1a86
1 changed files with 7 additions and 3 deletions
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10
profile.c
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@ -19,6 +19,9 @@
//#define DEBUG_GAS 1
#define MAX_PROFILE_DECO 7200
int selected_dive = -1; /* careful: 0 is a valid value */
unsigned int dc_number = 0;
@ -778,18 +781,17 @@ static void calculate_ndl_tts(struct plot_data *entry, struct dive *dive, double
surface_pressure, dive, 1), deco_stepsize);
int ascent_depth = entry->depth;
/* at what time should we give up and say that we got enuff NDL? */
const int max_ndl = 7200;
int cylinderindex = entry->cylinderindex;
/* If we don't have a ceiling yet, calculate ndl. Don't try to calculate
* a ndl for lower values than 3m it would take forever */
if (next_stop == 0) {
if (entry->depth < 3000) {
entry->ndl = max_ndl;
entry->ndl = MAX_PROFILE_DECO;
return;
}
/* stop if the ndl is above max_ndl seconds, and call it plenty of time */
while (entry->ndl_calc < max_ndl && deco_allowed_depth(tissue_tolerance_calc(dive, depth_to_bar(entry->depth, dive)), surface_pressure, dive, 1) <= 0) {
while (entry->ndl_calc < MAX_PROFILE_DECO && deco_allowed_depth(tissue_tolerance_calc(dive, depth_to_bar(entry->depth, dive)), surface_pressure, dive, 1) <= 0) {
entry->ndl_calc += time_stepsize;
add_segment(depth_to_bar(entry->depth, dive),
&dive->cylinder[cylinderindex].gasmix, time_stepsize, entry->o2pressure.mbar, dive, prefs.bottomsac);
@ -821,6 +823,8 @@ static void calculate_ndl_tts(struct plot_data *entry, struct dive *dive, double
entry->stoptime_calc += time_stepsize;
entry->tts_calc += time_stepsize;
if (entry->tts_calc > MAX_PROFILE_DECO)
break;
add_segment(depth_to_bar(ascent_depth, dive),
&dive->cylinder[cylinderindex].gasmix, time_stepsize, entry->o2pressure.mbar, dive, prefs.decosac);