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authorGravatar Linus Torvalds <torvalds@linux-foundation.org>2013-02-24 10:50:18 -0800
committerGravatar Dirk Hohndel <dirk@hohndel.org>2013-02-24 11:09:52 -0800
commit6d548d20285bce74f1a75f2623d55094871c1a81 (patch)
tree014695b2b03927e6251e72a40bec7c545b1ac1e2 /dives/sac-test.xml
parentf4bf16d5db5151a9b1a2fc1523ec930baf98e9b3 (diff)
downloadsubsurface-6d548d20285bce74f1a75f2623d55094871c1a81.tar.gz
Correctly calculate SAC rate in the presense of surface events
This assumes that you are not breathing your cylinders while at the surface, which may or may not be correct, but is usually the right thing. Regardless, we're better off giving a conservative (higher) SAC rate estimate for a diver that breathes his cylinder at the surface too than giving an artificially low one because the diver ended up using his snorkel and we didn't take that into account. NOTE! This basically calculates a better duration and average depth than the ones we end up showing in the dive list. Maybe we should actually show this "no-surface-time" duration and average depth instead of the ones we do show? That's a separate question, though. Added a test-case for the surface case to the sac-test.xml dives. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Diffstat (limited to 'dives/sac-test.xml')
-rw-r--r--dives/sac-test.xml19
1 files changed, 19 insertions, 0 deletions
diff --git a/dives/sac-test.xml b/dives/sac-test.xml
index b5f0149bb..14ee3f17b 100644
--- a/dives/sac-test.xml
+++ b/dives/sac-test.xml
@@ -46,5 +46,24 @@ We have exactly 100 ATM of gas in 15l of cylinder, average 20m for 25min</notes>
<sample time='25:00 min' depth='0.0 m' />
</divecomputer>
</dive>
+<dive number='4' date='2013-02-24' time='12:26:04' duration='25:00 min'>
+ <location>SAC test dive 3</location>
+ <notes>SAC should be 20l/min (0.7063 cuft/min)
+This adds a 5-minute surface time to the middle of the dive.
+We have exactly 100 ATM of gas in 15l of cylinder, average 20m for 25min</notes>
+ <cylinder size='10 l' description='10l' start='202.6 bar' end='101.3 bar' />
+ <cylinder size='5 l' description='10l' start='202.6 bar' end='101.3 bar' />
+ <divecomputer>
+ <event time='22:00 min' name='gaschange' />
+ <depth max='20.0 m' mean='10.0 m' />
+ <sample time='0:00 min' depth='0.0 m' />
+ <sample time='5:00 min' depth='20.0 m' />
+ <sample time='10:00 min' depth='40.0 m' />
+ <sample time='15:00 min' depth='0.0 m' />
+ <sample time='20:00 min' depth='0.0 m' />
+ <sample time='25:00 min' depth='40.0 m' />
+ <sample time='30:00 min' depth='0.0 m' />
+ </divecomputer>
+</dive>
</dives>
</divelog>