[Xastir] US Topo GeoPDF?

Tom Hayward esarfl at gmail.com
Mon Mar 19 12:51:05 EDT 2012


Replies to three messages below...

On Sun, Mar 18, 2012 at 18:41, Tom Russo <russo at bogodyn.org> wrote:
> If your files have all been renamed from the original USGS file names, and
> they don't have associated FGD files, then you have to generate them yourself.
> There are four lines in the FGD file that tell what the north, south, east and
> west neatlines lat/lons are, and Xastir uses those to clip off the collar.

Thanks for the reminder. I did this with my WA quads a few years ago.
I'm living in CO now and trying to get all those quads downloaded and
configured. This is the step I was missing. I might write a wiki page
describing acquisition and configuration of USGS DRG quads when I'm
done.


On Mon, Mar 19, 2012 at 08:23, Fred Hillhouse <fmhillhouse at comcast.net> wrote:
> With the correct decoding, the SlippyTiles can be accessed from the National
> Map.

Are you suggesting adding National Map support to Xastir, similar to
the online osm tiles feature? If we are lucky, maybe the tile specs
are the same! I don't think the USGS wants their tiles being used with
other services, but I haven't asked.

Alternatively, you can get seamless USGS Topo tiles from an ESRI tile
server. Looking at the license, I think it would be fully compatible
with Xastir as long as we don't exceed the transaction limit. The tile
format is Google/Bing--is this the same as OSM/Mapnik?


On Mon, Mar 19, 2012 at 10:08, Curt, WE7U <curt.we7u at gmail.com> wrote:
> My dream formats:  geoTIFF base rasters for topo and aerial views, plus ESRI
> Shapefile vector files for the rest.  Given those formats any GIS program
> worth its salt (and Xastir) can turn on/off layers at will and tile
> everthing together into a contiguous map.  Actually, can skip the topo lines
> on the basemap and give those to us as a Shapefile vector map as well, then
> everything will scale beautifully.

This was my goal yesterday, but I haven't got everything working yet.
I still need to generate the fgd files for my USGS quad DRGs (base
layer). I would like to overlay OSM street and trail data (from
Cloudmade shapefiles), but Xastir wouldn't list them in the map index!
After indexing new maps and restarting Xastir, all I can see is the
directory. I have some older Tiger shapefiles working, so I don't
understand why the Cloudmade shapefiles aren't in Xastir's map list.


Tom KD7LXL



More information about the Xastir mailing list