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"Ground" altitude reads lower than "Sea" altitude while over ocean


WhereAreTheBathrooms

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Reported Version: v0.2.0 (latest) | Mods: none | Can replicate without mods? Yes 
OS: Windows 10 Home 64-bit (10.0, Build 19045) | CPU: AMD Ryzen 7 7800X3D 8-Core Processor (16 CPUs) | GPU: NVIDIA GeForce RTX 4090 | RAM32978 MB

 

Severity: Medium, could conceivably cause disaster but hasn't for me so far

Frequency: low? so far? I've only noticed it once but I've also only looked properly at the altimeter once, so it could be happening all the time for all I know

Description: See in the attached video, while my craft is orbiting above Kerbin's seas, I expect to see ground and sea altimeter display the same value, the craft's height above sea level, or, alternatively, the ground altimeter should show a higher value than the sea altimeter, reflecting the craft's height above the sea floor (would be weird but at least makes sense). Instead I see the ground altimeter displaying a lower number than the sea altimeter, suggesting I am above ground - judging by the way it rises and then falls, hilly or mountainous ground. However you can see my craft is orbiting above the ocean, so this doesn't make sense. Am I being dense and missing something obvious?

 

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Edited by Spicat
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  • 2 weeks later...

Reported Version: v0.2.0 (latest) | Mods: none | Can replicate without mods? Yes 
OS: Windows 10 | CPU: AMD Phenom(tm) II X6 1055T Processor 2.80 GHz | GPU: NVIDIA GeForce RTX 2070 SUPER | RAM24.0 GB

 

While orbiting Kerbin, the ground-relative altitude displays a lower value than sea-relative altitude while the craft is obviously over open ocean, implying that the craft is closer to the ground than to the ocean surface. I think the seafloor's terrain altitude is being treated as positive instead of negative.

Sea elevation displays 71827 m:

cWh3DPR.jpg

Ground elevation displays 70095 m at the same instant:

JepvURB.jpg

Often the ground elevation will even display values below 70 km even though the craft is totally in space.

Edited by The Space Peacock
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If this is reading distance from the seafloor, I feel like this might actually be useful behavior? I'm imagining it could be good for submersibles, etc, knowing distance from seafloor. Maybe if the UI highlighted it better.

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3 hours ago, BlackholeKS said:

If this is reading distance from the seafloor, I feel like this might actually be useful behavior? I'm imagining it could be good for submersibles, etc, knowing distance from seafloor. Maybe if the UI highlighted it better.

I believe it is, it's just doing it backwards.

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