I took a peek at this a while back and came to the conclusion that it wasn't as useful as tiling the seamless server because a) it has older data and b) is harder to work with.
But it's there, so there's no harm in using it. I think it'd probably make more sense to use a tilecache/stache plugin than to grab each "tiled GeoTIFF" and run gdal2tiles on it. I can take a peek at it later tonight if no one else does. On Mon, Jun 6, 2011 at 12:09 PM, Josh Doe <j...@joshdoe.com> wrote: > Has anyone used the USGS High Resolution Orthoimagery available via > the Tiled Data Distribution System (TDDS)? The Seamless data is what > is available via the USGS WMS servers as described on the wiki, > however there's a great deal of imagery which is not on this service: > http://orthoimagery.cr.usgs.gov/dispatches/PRODUCT_Orthos.html > > At least for my area, the imagery from the Tiled service is far > superior to what is available on the Seamless service (via WMS). > However, this imagery can only be obtained by getting download URLs > from their website or via a SOAP service, which results in a ZIP file > containing the requested tile. In my case the tile was a GeoTIFF, but > other formats may be possible. Of course, to make this usable in JOSM > or Potlatch, more work must be done. Perhaps the easiest method would > be to run GDAL2Tiles on the GeoTIFF to create a TMS-like cache. > > I'd be interested to know if anyone has used the TDDS. It would be > quite useful to create a script that queries the USGS servers for > available layers, downloads the appropriate ZIP packages, runs > GDAL2Tiles on them, and then provides the user with a directory/URL > that can then be used in JOSM (I'm not sure if Potlatch provides for > local caches). However if someone has already created such a script, > you'll save me the effort! > Thanks, > -Josh > > _______________________________________________ > Talk-us mailing list > Talk-us@openstreetmap.org > http://lists.openstreetmap.org/listinfo/talk-us >
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