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Flatten gone wrong

S

smithte

Messages
337
Country
ireland
Hi.

Im using sbuilder to create a flatten for my airport scenery. Just to test i used a flatten of 500m (the surreounding altitude is 74m) and it worked except for my scenery itself which stayed at 74m. Any suggestions as to why this happened?

Do mi have to raise my scnery up manually to 500m aswell so it sits on top of it??

Thanks

Terry
 
Hello,

I am not sure to what you refer to as "your scenery". If your scenery consists, say, of library objects, there are 2 possibilities:

a) you placed the objects with AGL = True. Then there is no problem. The objects will get on top of the terrain. If you change the terrain altitude, the objects go with it.

b) you placed the objects with AGL = False. In this case the positioning of your objects is referred to the sea level. The situation is like that you describe.

In addition to this, airport, runways, etc, have altitudes that are also referred to sea level. Please be more specific with regard to the type of scenery that you are referring to.

Best Regards, Luis
 
Thanks for the reply. iv created scnery in gmax for Dublin airport ireland which consists of custom runways,taxiways,aprons etc and all the buildings. Iv made a huge flatten polygon, however the whole area within the airport perimeter remains at the same altitude.

Terry
 
Hello,

It seems that your gmax scenery has an absolute altitude. I am no expert on the gmax modeller. I hope someone enters this discussion and gives us an answer.

Best Regards, Luis
 
smithte said:
...Iv made a huge flatten polygon, however the whole area within the airport perimeter remains at the same altitude.

Terry
Click to expand...

Just to be sure, as it is not mentioned, but did you exclude the original flatten? If not, the second will not take effect, I do believe.
 
Not attempting to parse your words, but excluding an airport can mean different things. Airport being the runways, taxiways, aprons, etc. The Airport Background Flatten controls the height. If you do not exclude the default Airport Background Flatten, then any subsequent Airport Background Flatten will have no effect.
 
Hm,

is there an AFCAD File with the high of 74 Meter?

Than you must change the AFCAD
 
Thats it i thnk,

there is an afcad with a height of 74m also. I deleted it and no problems.

Thanks a lot

TERRY
 
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