Re: New data for use in FlightGear

I made 32 *.arr.gz files from the data I have.  The files had a size
between 20k and 78k, but when I tried to convert them to *.btg.gz
files, they were all about 200 bytes.  I'm not sure if I did something
wrong.  I followed the html pages instructions for making the terrain,
but I'm not using any airport data.  I didn't have the file listed in
the instructions in my FlightGear base package.

Upon comparing with the original data, I think I had my format wrong. 
I changed it to the following:

latitude_arcseconds longitude_arcseconds
301 3 151 3
151 data posts on this line
350 more lines of data with 151 data posts each


Chris



On Tue, 8 Mar 2005 08:15:15 -0600, Chris Riegel <[email protected]> wrote:
> I want to use some data I have to make terrain files for FlightGear.
> The data is only for one geo-cell ( 1 deg lat by 1 deg long ), and
> from the looks of things, the borders of the data in the *.arr files
> overlap, so I was thinking of not using the data for the adjacent
> geo-cells.  Is it true that if the borders don't overlap, it could
> confuse FlightGear?
> 
> Anyhow, I looked at the how the DEM files were being broken up from
> the DEM-30 standard files.  For the geo-cell I'm interested in, it
> outputs 32 *.arr.gz files (4 longitude files by 8 latitude files).  I
> was going to try to sneak my data into the *.arr.gz files.  My data
> for the one geo-cell contains 1201x1201 posts with a separation of 8
> arcseconds.  So I was going to keep the names of the *.arr.gz files
> the same, and format the data in the files like so:
> 
> latitude_arcseconds longitude_arcseconds
> 151 8 301 8
> 301 data posts on this line
> 150 more lines of data with 301 data posts each
> 
> If I break up the data like as described above, place it in a
> DEM-3/wAAAnBB/wCCCnDD folder and run the fgfs-tools-server and
> fgfs-tools-client, should I get output data that FlightGear can read?
> Is my formatting incorrect?
> 
> Any insights are greatly appreciated.
>

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