[PATCH 2/2] Add initial rudimentary no-fly time calculation

[Robert C. Helling]

On Fri, 8 Feb 2013, Robert C. Helling wrote:

>
> Hmm.
> [...]
> Hmm.
>
> There was about an hour between typing these two Hmms in which I convinced 
> myself that a) what you write is indeed the case for the current code and b) 
> I still think that it should be as I said earlier.
>
> This worries me a lot (regarding correctness of the deco calculation) and I 
> will look into this.
>
> Just not now, as I have some real work to do before the weekend comes. I hope 
> to find some time tonight, if not over the weekend.

[swearword]. I couldn't leave it alone and spend my whole afternoon on it. 
I did some analytical calculations to find expressions for maximal tissue 
loadings at flying pressure, computed the derivative w.r.t. gf_low, 
convinced myself that it is negative...wrote some debugging code (see 
attachment, but don't use, it produces tons of printout).

Then I found the problem: tissue_tolerance_calc() assumes to find the 
surface pressure as

double surface = dive->dc.surface_pressure.mbar / 1000.0;

Except that seems not to be set, at least it always reads a 0.0. Where 
should that be set? Shall we always set it to 1013mbar or do we do 
something better?

Best
Robert

-- 
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Robert C. Helling     Elite Master Course Theoretical and Mathematical Physics
                       Scientific Coordinator
 		      Ludwig Maximilians Universitaet Muenchen, Dept. Physik
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