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Fix missing pressure plot at start of the dive in some situations

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In some situations we could end up with no sample pressure and no
interpolated pressure at time = 0. This is now fixed.

Fix notes in test dive the exposed the issue.

Also change the code in create_plot_info to keep the number of samples and
the number of corresponding pi entries in separate variables. This avoids
future changes from breaking if they assume they can access
dive->sample[nr_samples - 1] (which is a reasonable assumption to make).

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This commit is contained in:
Dirk Hohndel 2011-11-04 15:34:30 -07:00
parent 93d07f631a
commit 4b735521e2
2 changed files with 14 additions and 10 deletions
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2
dives/test8.xml
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@ -5,7 +5,7 @@
<temperature air='27.0 C' water='26.0 C' />
<location>8th test dive, with samples</location>
<notes>SAC should be 0.93 cuft/min or 26.2 l/min
Tank pressure plotted incorrectly (issues with first sample of first tank).
Tank pressure plotted correctly (linear approximation)
Descent light green
First Ascent red, second orange, third yellow, last green
</notes>