Recreational planning with Subsurface?

[Jan Mulder]

On 25-01-18 11:28, Robert Helling wrote:
> Hi,
> 
>> On 25. Jan 2018, at 10:16, Rick Walsh <rickmwalsh at gmail.com 
>> <mailto:rickmwalsh at gmail.com>> wrote:
>>
>>     2) Even more important, at the bottom it says that the dive
>>     requires 1245 litres of gas, more than is in the cylinder. But
>>     this is wrong because the 12 litre 232 bar cylinder takes 2784 litres.
>>
>>
>> That looks like a bug. I'm guessing the calculation here assumes the 
>> starting pressure was zero. If you don't enter a starting pressure, 
>> the planner should assume cylinder working pressure.
> 
> I am not sure I would call this a bug. If there is no starting pressure 
> we simply don’t know how much gas we have, so we cannot base any 
> calculation on this. One could argue that the starting pressure should 
> be initialised with the working pressure and I just pushed a commit to 
> that amount but I am not sure that it’s obvious we want this.
> 
> The other problem I will look into later today.

And I just found an endless loop related to no starting pressure and 
rec. mode, but not sure why (yet).

I start "plan", clear 4 unused cylinders, change to a small 10L 
cylinder, and when clearing the start pressure it loops forever.

--jan