Re: Required software to convert BTG to any standard file format

Frederic Bouvier wrote:

>Quoting senthil kumar :
>
>  
>
>>Hai,
>>
>>                I am using FlightGear-0.9.4. I have an query, Is there any
>>software available to convert btg file format to any other standard file
>>format?
>>    
>>
>
>Dale Edmons has some success in hacking fgsd to convert .btg scenery files to
>the SPX format supported by the simulators of his company. He didn't published
>his code though
>
>-Fred
>  
>
I'm not against publishing it if I can get it okay'd from the original 
manufacture.  All the documents say the stuff is proprietary etc....  
But, I haven't even contacted them yet... (Evans & Sutherland).

What I did was use write_bin() and write_ascii() (in SimGear) for a 
guide line on how the data is formatted and just wrote the code to 
output in the format I needed (SPX-200).  I'm looking into a way to 
convert the .btg files into something Plib can understand (maybe a 
write_ssg()).  This would possibly give us the ability to output stuff 
in many different output formats.  I've just started looking into this 
and don't know if it'll work yet.

To convert the files I use Fred's FlightGear Scenery Designer software 
to select the tiles I want to output.  He has include an Ascii version 
of my stuff in the with-CGAL-3 branch of the code.  If nothing else, you 
can export in Ascii format and get a little bit of an idea of the .btg 
format if you grab and build FGSD.  See:

    http://fgsd.sourceforge.net

Is there any specific format you need?  Are you interested in 1) 
terrain, 2) airports, 3) objects/building, or 4)all of the above?


Dale

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