i'm bringing this here from a discord server... for two reasons, actually... one is for a more permanent record and the other is to get more feed back from others that may know a/the answer and not be on the discord server where i first posted... so here we go...
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i'm trying to figure out why i cannot see all the buildings at EGLL from 22 nm... i can see most of the buildings except the tower and the large one to the east (right side) between the runways and closer to 09R/27L that has parking around it... in the past it has been found that, for some reason, folks have had an xml file for some building and they have gone in and set an artificial viewing distance limitation... i can't find one for this building, though... it looks like the building is defined in the EGLL.btg.gz in Terrain... the tower is in Objects, though... so i don't understand (1) why folks artifically limit the distance an object can be seen from and (2) why i cannot see the tower and the building at the east end of the closest runway in the following picture...
the arrow is pointing to where the eastern building is located that i'm talking about not seeing from this distance... the FOV is about 8 degrees... straight line distance from this altitude is about 22 nm...
i've moved in to about 18nm and some more OSM buildings closer to me have popped in... i'm moving on in until that building i'm talking about shows up...
it pops in at 17.5nm distance... hang on while i get another screen shot...
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believe it or not, i'm actually hovering over EGKK... well, i was until i moved closer to EGLL to get the building to pop into view... the view angle also dropped me to 12000 feet from 15000 where i had been while over EGKK... this was/is not a cloud or weather limited visibility problem... while i can now see the building i was talking about, i still cannot see the control tower...