[PATCH] VPM-B: Calculate first_stop_pressure before starting ascent

[Robert C. Helling]

Hi,

> On 22 Aug 2015, at 07:15, Rick Walsh <rickmwalsh at gmail.com> wrote:
> 
> To show what this actually does to the calculated profiles, I have made a new column on the Google docs spreadsheet Robert set up.
> 
> This gets the calculated profiles noticeably closer to those calculated by other software, except for the multi-level dive (20m for 10min, then drop to 60m for 30min).  I think the small difference might be related to use of Schreiner vs Haldane equations in the change in levels, but could be wrong.
> 
> Note that this change alters the first_stop_pressure used for the Boyle's law compensation.  The way the profile is calculated, if we get to that depth but can ascend to the next, then we do.
> 

another excellent catch by Rick! Dirk, I think this patch did not yet make it into master.

I have to admit, I had considered testing this way to determine the first stop pressure as well (which should get first_ceiling_pressure to be more accurate) but dismissed the idea as too crazy. But the computed profiles prove me wrong.

In case that was needed:

ACK.

Best
Robert
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