Suggestions for a few planner features

[Krzysztof Arentowicz]

Hi,

First of all, a big Thank You for Subsurface 3.0  to all of you.

After spending some time playing with dive planner I thought of a few
features that I find quite useful in other deco sw I use and I think it
would be a good idea to have similar functionality implemented also in
Subsurface:

1. it should be possible to configure last deco stop depth. While diving
in sea it is a common practice to plan last deco stop on 6m as it is
often impossible to maintain depth of 3m because of sea conditions.

2. there should be an option to add some extra time to deco stops on
which gas change is to take place.

3. it should be possible to configure different max ascent rates
depending on depth, to allow faster ascent on deeper part of the dive
and slower during shallow part. (eg 9m/min below 21m and 6m/min above
21m). The same goes for descent. (IIRC vplanner uses 15m/min until 60m,
18m/min until 150m and 24m/min below that)

4. current planner behavior is that dive profile is drawn simply by
connecting user defined points, so if I want to plan, say, a 45m/30min
dive I need to actually enter 2 segments: 45m/3min and 45m/27min where
the first one determines my descent speed. This allows for totally crazy
profiles like getting down to a few hundred meters in a minute.
Teleportation is cool but I don't think we're there yet with current
diving technology :)
I think it would make more sense to enter just a single depth/time
coordinate and let the planner interpret this as "I want to get to
'depth' as fast as possible given currently defined ascent/descent rates
and stay on this depth until 'time' is reached "

What do you think?

Thanks,
--
Krzysztof Arentowicz