Dive computer reported ceiling

[Tim Wootton]

Hi,

I'm seeing a (red) DC reported ceiling on the graph display of one of my
dives (this is agrees with the DC, it was a deco dive), but I dont see
any info for ndl or stop depth in the .xml file, just time depth and
occasional temp. Where does this info for the DC ceiling come from? Is
it a calculation because the DC doesn’t provide it? If so why does it
differ from the calculated (grey) ceiling with default GF?

cheers,

Tim