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JABBGL Did Not Work For Me ??

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Tried to lower airport KLBE but did not work using JABBGL. The program showed the initial elevation properly. Subsequently it showed the new elevation ok. Th AB file was also updated, at least by the indication of the date/time stamp. Any suggestions?FS2004/FS9.1 windows XP SP2Dick Boley @KLBE

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Hello Dick,It is not clear whether you have also created a new flatten file.And, when you say that it does not work, could you please describe exactly the results in Flight Simulator?Best regards.Luis

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After using JABBGL the level of the airport remains the same and the aircraft continue to set properly upon the airport's surface. I am assuming that the program is supposed to change the elevation of the airport which would cause the overall flattened area defined by Microsoft to change in elevation. I am probably wrong.I want to lower a default airport by 50 feet. Maybe this is not the correct tool.I guess that I could use a flatten and make sure that it was at a higher priority than the regional files. Tracing a new flatten is a pain.Regards,Dick Boley @KLBE

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Hello Dick,You have a number of options: - draw a new flatten using a terrain design tool. I use Ground2K4 and connect to FS, then just slew over the terrain to draw a new shape for the flatten; - decompile the FL (flatten) file and change the altitude for that particular flatten. The FL file is very small and it is easy to find any particular airport's flatten; - a combination of the above two methods. I drew a new flatten in Ground2K4, then decompiled the FL, removed the old flatten, and inserted my new Ground2K4 flatten with a different shape and altitude; - or, use Steve Greenwood's terrain utilities to make a new flatten.I suppose that if you modify the AP altitude, then you must also either provide a new flatten or modify the FL file. The AP file seems to define the altitude of the runways, ramps, starting locations, etc. while the FL is the polygon underlying the airport that keeps it all level ("flat").Best regards.Luis

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What tool is currently recommended for decompiling these BGLs?Thanks,Dick Boley @KLBE

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For the AP9xxyy0.bgl -- NewBGLAnalyzeFor the FL9xxyy0.bgl -- LWMViewerAlso needed, FS9 BGLComp sdk to recompile the XML filesLudowise's TDFHeaders.inc and TDFMacros.inc , and FS2002 BGLCcompiler from the sdk.As indicated, the purpose of JABBGL is to fix the case where thealtitude in the AP

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Thanks for all the info. Since JABBGL only changes the AP file I now understand the problem. Again thanks everyone.Dick Boley @KLBE

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>What tool is currently recommended for decompiling theseHi Dick,You can open (append to a new project) the FLxxxx.BGL LWM file with SB. Then you can change the properties (altitude) of the flatten polygon and compile again.Regards, Luis

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