Landom, You should probably find all you need in www.gdal.org, "gdal_translate" command line tool, as long as you can identify any raster format that AutoCAD digest (I can't remember). The file extensions: TIF is a Geotiff raster image file, RRD is a ArcGIS overview/pyramid (to speed up the display) and AUX is a auxiliary file with geo-reference and more detailed description of that image. I bet there is not a lot you can do with a raster DEM in AutoCAD but it should have the tools to extract and convert it, I guess.
Best regards, Ivan Lucena -- "Smart data structures and dumb code works a lot better than the other way around." Eric Raymond ________________________________________ From: [email protected] [[email protected]] On Behalf Of Landon Blake [[email protected]] Sent: Tuesday, August 18, 2009 3:58 PM To: [email protected] Cc: Mike Conrad Subject: [Geowanking] Working with NED DEMs in AutoCAD Civil 3D/or AutoCAD Map One of my civil engineers would like to work with some of the National Elevation Dataset DEMS he downloaded from the USDA portal. I’d like to know if any wankers can tell me how to import this data into AutoCAD Civil 3D or AutoCAD Map. The zip file I downloaded has a bunch of files with these extensions: AUX RRD TIF Any suggestions? Thanks. Landon Warning: Information provided via electronic media is not guaranteed against defects including translation and transmission errors. If the reader is not the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this information in error, please notify the sender immediately. _______________________________________________ Geowanking mailing list [email protected] http://geowanking.org/mailman/listinfo/geowanking_geowanking.org
