RFC: PSCR dive plots: Part 1

Willem Ferguson willemferguson at zoology.up.ac.za
Mon Mar 12 07:58:18 PDT 2018


After Anton's current PR dealing with PSCR code has been pulled, I plan, 
as a SECOND step, to incorporate (again) the display of OC_pO2 with the 
PSCR pO2 graph. OC-equivalent pO2 has a role very similar to setpoint 
for CCR dives. It allows the evaluation of the pO2 drop over the gas 
injector, probably the most important gas management activity for PSCR. 
Taking into account Anton's strong preference that the setpoint variable 
should not be abused for PSCR dive profiles, my plan would be:

1) Create a new PartialPressureGasitem element, starting with the qt 
diveplotmodel and using createPPgas() in profilewidget2.cpp

2) Contol its display by setting its setVisible attribute.

Does this sound like a useful approach at all? In this way the setpoint 
variable is not involved at all.

The THIRD step would then be to implement bailout events and display gas 
pressures as a function of whether the diver is on the loop or on 
bailout. This would probably affect the CCR code as well. There is a 
separate thread (part 2) on this topic on this mail list.

Does this approach appear at least semi-useful?

Kind regards,

willem



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