As there is an achievement "dive below 14km" is was trying to find the deepest point in the ocean without google. My idea was just use Vizzy. All i need is there. So my program simply wrote into flight log the following stats:
while(true){
1 Text "ASL-ASF # ASL # ASF"
2 Ocean depth (ASL-ASF) in whole meters
3 ASL in whole meters
4 ASF in whole meters
5 wait a second
}
The program itself works fine, but above 27km ASL all the three altitudes start being the same.
As you can see in screenshot middle. Last useful ocean depth is -669m - the difference from 27570m ASF to 26901m ASL. While climbing up, every data point after is 0.
AGL does the same.
Ok the ASL vs AGL has a solution with a vector, but theres no solution for ASF. Gozinya is talking about this in his Terrain Mapper Video as AGF-ASL=TerrainHeight is not working when getting up: https://www.youtube.com/watch?v=niG3v8l1GeM