[Xastir] Format for .geo files

[Tom Russo]

".geo" files are not for referencing geopdfs, they're for georeferencing
images in PNG or JPG format (like a scanned image or something).

Geopdfs are newer than any map type coded into Xastir, and there is no
native support for them at all.

You can, however, convert geopdfs to GeoTIFF format, and they'll work just fine.
Since they have georeferencing information in the file already, you need no
other additional files to do this.

However, you do have to convert the file using a script called "geopdf2gtiff.pl"
in the Xastir "scripts" directory, and this script requires that you have
GDAL installed (it uses gdalinfo, gdalwarp, and the "rgb2pct.py" script 
provided by GDAL).


On Wed, Apr 20, 2022 at 10:40:00AM -0400, we recorded a bogon-computron collision of the <rufus.rizzo78 at gmail.com> flavor, containing:
> I'm working on getting USGS offline maps, and I'm having problems bringing
> them up in Xastir.  Is there a format documented for the indexing of the
> maps?
> 
> The link in the documentation is broken:
> http://data.geocomm.com/quadindex/
> 
> I've got the USGS index files that point to the Geopdfs, and can convert
> them so they will work like the link mentions, but I'm unsure how to format
> them.
> 
> If I can get it working I can share my script.
> 
> Thanks!
> 
> Riley
> Kf4emz
> _______________________________________________
> Xastir mailing list
> Xastir at lists.xastir.org
> http://xastir.org/mailman/listinfo/xastir

-- 
Tom Russo    KM5VY
Tijeras, NM  

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