On Wed, Jul 8, 2009 at 9:56 PM, Tyler<tyler.ritc...@gmail.com> wrote: > You can check out the NAIP imagery to see if there're more recent data in > your area > http://www.fsa.usda.gov/Internet/FSA_File/naip03-08cov_maps.pdf which is > downloadable at http://datagateway.nrcs.usda.gov/GatewayHome.html it would > be pretty easy to setup a WMS server for use in JOSM and Merkaartor. > The 1m imagery in this area (I think it's <1m, personally) is superior to > the available yahoo imagery, though it is somewhat halo-ey
Thanks for the pointer to the NAIP images... The GIS department at ISU has the NAIP images for Iowa up on a WMS server[1] but I've never been able to access it... maybe I never tried hard enough or maybe their WMS server is a little different and I don't know what the right magic incantation is... Anyway, I've spent some time recently to download some of the NAIP images and set up a test WMS server using the UofM mapserver software. After a few trials and tribulations, I've got something working that I can use. The georeferencing of the NAIP images seems to be better than the Yahoo images from what I can tell and the NAIP images provide a consistently high resolution for all of the areas that I've looked at. The best of the Yahoo images look better than the NAIP images, but Yahoo only covers major metro areas with high resolution data. With the NAIP images I've finally been able to do some armchair mapping of my hometown, which only had low-res imagery available from Yahoo. It's also extremely nice to have images that are much more recent than Yahoo offers... Anyhoo... The server that's running my WMS is a virtual guest borrowed from work, so it doesn't have a lot of oomph and I'll have to turn it off eventually. That said, if we can agree on an area to map for our online mapping party I'll load the appropriate NAIP images onto the server and share the URL to the server with those interested in doing some mapping. [1] http://ortho.gis.iastate.edu/tools.html -- Jeff Ollie _______________________________________________ Talk-us mailing list Talk-us@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-us
