On Tue, Jul 15, 2014 at 10:26 AM, Robert Helling <hell...@atdotde.de> wrote:
> > On 15.07.2014, at 07:14, Miika Turkia <miika.tur...@gmail.com> wrote: > > There is something wrong currently with the calculation of tissue > saturation. It looks like the earlier dive is getting cumulative saturation > from the later dive. Clearly visible when you open the XML and switch > between the dives. There is also a spike on the start of the earlier dive > as show on screenshot. > > This is with the beta release (and master). > > I have added a test XML to demonstrate the issue. dives/test20.xml with > the same dive repeated again the next day. > > miika > > > Miika, > > TL;DR: Works as designed. > > I believe this is fine. It is the outcome of the problem with “negative > slope” that we had a few weeks ago. The point is that gradient factors are > not really well defined during the early descent phase of the dive (as > GFlow is defined to apply at the depth of the first stop but there is not > really a first stop when you just entered the water). > > For a longer explanation, see my commit message for > e38a473a4d9119b86e5484a03dbf2cafdb8d145c > (and also some posts to the mailing list I wrote in connection with it) > > If you think, we need to explain this to our users, I could try to write > something for the manual (or alternatively: a web page to which the manual > could point). But unlikely this week as it’s super busy at work. > The main problem is that the accumulated tissue saturation is shown on the dive on day one. If you compare the tissue graph on these two dives, the day two dive shows less saturation on the early part of the dive (around 5 minutes) than the dive on the previous day. The visual glitch was just an extra oddity I noticed. miika
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