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Correctly positioned ground files

M

Montefiore

Messages
3
Hello!

Firstly, apologies for my bad English.

After reading the WIKI about making ground polygons with the help of GMAX and FS2002 game pack. I managed to tweak the ASM file and ground was presented precisely in FS( no flickering, shadows etc). So no problem with that.

The next part is to position ground files exactly to the correct coordinates. The makemdl (telling the coordinates) isn't quite handy, when I have for example 4 different ground files, which I want to be side by side, so the apron lines and taxiways are showing correctly. What is the solution and programs to do that.

I have positioned different 3D objects with EZ-Scenery, but with the tweaked ASM file, which give me direct bgl to use in FS, it's not usable.


Best Wishes!
 
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Hi,

Maybe you want to share your tricks with us? I think more people have this question.

What you probably would have to do is calculate the different lat/lon positions to get your 4 tiles lined up exactly. That will require a little bit of math. The formula's that can be used for that are here on the forums. Is that the approach you took as well?

For smaller airports it is probably better to put everything in one GMax scene (and thus one file). But for big airports that would kill performance to much.
 
Hi Arno!

Thank you for answering. Exactly I was calculating lat/lon positions, but made it a little more easier for me. Firstly I positioned ground files in FS with the help of object placer program. To do that and to show up in the library, I exported ground files with gamepack 2004.

So I positioned my files, wright down FS coordinates (made some changes to the FS9.CFG to show degrees, minutes and seconds) and divided seconds with 60 to get correct lat/lon positions when exporting with makemdl now with fs2002 gamepack (ex. N47.24.56.9138 => N47.24.94856333).

Obviously there are some easier and more wiser way to do that, but that worked for me.

So all worked well when I was exporting files separately (ex. photo.bgl, noise.bgl and apron.bgl), they were in correct positions, but something happened when I was using different layers in a single bgl. I did all as described in the tutorial, but my taxiway was moved 15 meters away from correct position.

I was using previously calculated coordinates and my bottom (photo) layer as a ASM file header and every other layers SCALE_AGL command reference points. Is there some sort hint to give, where to look, I think there is something with my header in ASM file.

Best Wishes!
 
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Hello:

A fascinating idea!


I'm curious if ground tiles as scenery objects exported and compiled into FS scenery libraries can be placed using an FS live preview tool such as EZ Scenery (EZS) /Instant Scenery (IS) in FS9, and IS, FSX SDK "Mission" Object Placer, or whisplacer in FSX?

Would one also have to create a separate preview version in order for the ground tiles scenery objects to be seen in FS using the live preview program?

I assume one would also have to create thumbnail bitmaps in order to display same in the pick lists of such objects in the Object Placer app?


Regarding precision placement using math and the usual SDK approach, these might prove to be interesting related threads:

http://www.fsdeveloper.com/forum/showthread.php?t=2007
http://www.fsdeveloper.com/forum/showthread.php?t=9783


Hope this helps! :)

GaryGB
 
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