BGLViewer for FSX BGL files.

[Patrick Germain]

Hi folks !

This is an application (.NET) I wrote to dump the content of a BGL file (and interpret the data), based on the wiki page http://fsdeveloper.com/wiki/index.php?title=BGL_File_Format that I'm trying to update a s much as I can.
Attached is the zip file (exe + dlls + config file) and a snapshot of the screen.

Enjoy!

PS : See also https://www.fsdeveloper.com/forum/threads/bglviewer-for-fsx-bgl-files.432840/post-885474 for FS2020

 

[ollyau]

That's really cool -- thanks!

 

[scruffyduck]

Hi Patrick

I assume BglViewer.exe is a windows gui app. However when I try to execute it I get a busy cursor for a second but nothing displays.

 

[Patrick Germain]

Hi Jon
The app is compiled for .NET 4.5
Also ensure that you have all 3 files : BglViewer.exe, PGFSBgl.dll and BglViewer.exe.config.

 

[scruffyduck]

Well I have all those and I get no dialog - sorry.

 

[Patrick Germain]

Well I found an issue . I'll post an update soon

 

[scruffyduck]

OK - no worries

 

[Patrick Germain]

I posted a new version - Downloaded it in a new folder locally and ran it. No issue.
Can you try it ?

 

[scruffyduck]

Yep - that one works for me Patrick - thanks

 

[Patrick Germain]

Cool - Thanks for testing !

 

[NoNewMessages]

Oh, the irony of it all! Just ran the revised version, because the initial version would crash. Went to look at APX05240.bgl in \0003 and was scrolling the HI01 airport listing and I got ....

an "Out of Memory" crash!!! But Hey! The FPS were really steady.

I have VS2013E installed and I believe it's up to date 4.5 Net stuff.

 

[Patrick Germain]

Yep - Was able to reproduce as well. I suspect that this comes from the continuous sliding of the scroll bar (although it takes a while to reproduce). However when you scroll page by page it seems to behave correctly.
I'll work on it.
Thanks for reporting it.

 

[mgh]

I have a functioning .bgl file including airspaces boundaries within FSX. Your application reports "Discrepency found in section size" and then fails.

BglAnalyseX disasembles it correctly.

 

[Patrick Germain]

Updated version 1.0.1.2

- Fix the scrolling problem
- Remove the "Discrepency..." error.

Note that Discrepency in size is found when the size value (at offset 0x10 of the section) is not equal not the number of subsections (offset 0x08) multiplied by the subsection size (defined at offset 0x04).

 

[mgh]

I've now loaded it but what it tell me about my boundary bgl?

 

[Patrick Germain]

Some sections (like Boundary, Geopol, some of Sceneryobjects) are not yet implemented in the app (remember it's version 1.0).
Most of the time, it's because I don't have sample BGL to work with.
Now if you have an example of a boundary file, please feel free to upload it so I can start working with it and update the app.
Thanks.

 

[mgh]

I don't quite understand what the purpose of your application is? I can compile an .xml file using BGLcomp to create a .bgl file. I can then disassemble the .bgl file using BGLAnalyzeX (or something similar) back to a .xml file.

Am I missing something?

 

[scruffyduck]

Yes - it handles CVX files which the current crop of decompilers don't. Whether that is useful to you or not is something else

 

[pfabian]

Now if you have an example of a boundary file, please feel free to upload it so I can start working with it and update the app.
Thanks.

Supposing you mean airspace boundaries, here is an old project of mine, though I think BGLs are FS9 format - but you can just recompile from XMLs. I think.
https://drive.google.com/file/d/0B24RJoq1Nf63TjNCRHozcVl0c1k/view?usp=sharing

 

[mgh]

From Google, I understand that a CVX file is a Canvas Drawing File, developed by ACD Systems(?) A quck check of my FSX PC shows I don't have any CVX files on it.

I still don't what is the purpose of this application to FSX?