Steve, Yes it can. You would use gdal2wkraster.py packaged with WKT Raster to load the data in. You'll need working GDAL and Python 2.5 (I think 2.6 works as well now though haven't tried with 2.6).
>From there you should be able to use the ST_Intersects functions to cross join your geometries with the elevation data. Pierre has a tutorial here covering some exercises with elevation data. http://trac.osgeo.org/postgis/wiki/WKTRasterTutorial01 The last chapter of our book covers various exercises in loading different types of raster data and working with geometry/raster together. http://www.postgis.us/chapter_13 We are in the middle of updating that since some things have been added/simplified since we last updated it. Thanks, Leo and Regina http://www.postgis.us -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Stephen Woodbridge Sent: Wednesday, August 18, 2010 4:36 PM To: PostGIS Users Discussion Subject: [postgis-users] USGS NED Dataset Hi all, Any thoughts on loading and using the USGS NED data set with postgis? My goal would be to take something like the Tiger Street data and augment that with elevation data for the Z values. Does the new raster support facilitate doing this? Has anyone already done this or can someone describe the process? Thanks, -Steve _______________________________________________ postgis-users mailing list [email protected] http://postgis.refractions.net/mailman/listinfo/postgis-users _______________________________________________ postgis-users mailing list [email protected] http://postgis.refractions.net/mailman/listinfo/postgis-users
