By drawing oversize dots for each data point, dots were overlapping such that
the change in tissue presssure wasn't displayed at the right time - typically
out by 1-2 minutes, depending on dive duration.
Drawing a line between discrete points, the data points don't overlap and
change in tissue pressure is displayed at the right time.
Signed-off-by: Rick Walsh <rickmwalsh@gmail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
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