Compute deco algorithms [was Re: Any people here with deco dives?]

[Lutz Vieweg]

On 11/12/2012 02:06 PM, Henrik Brautaset Aronsen wrote:
> I just thought of a fun feature: Being able to graph the deco profile
> based on existing depth/time/gas data.

Fun, yes, but that feature would necessarily suffer from the same error
source that Suunto's SDM suffers from: Samples are usually recorded
less frequent than numerical computations are done inside the DC,
and at least in the case of Suunto's SDM that is enough to let the
model computation "after the fact" differ very visibly from what was
computed during the dive.

> That way we could look at the differences between e.g. RGBM, Bühlmann
> and VPM with various agressivity settings for a given dive.

I haven't seen RGBM being published. Bühlmann certainly is.
For VPM-B, there exists a relatively recent open source
Java implementation:
http://webspace.webring.com/people/fv/vpmopen/

Since RGBM seems to be only a lesser-computational-effort derivative
of VPM, anyway, I guess it would not be missed too much.

Regards,

Lutz Vieweg