Robot17 opened this issue on Jul 23, 2003 ยท 17 posts
Robot17 posted Thu, 24 July 2003 at 3:43 PM
USGS 7.5 meter (not seconds)dems converted to grey scale. The dems are at this lame site http://data.geocomm.com/dem/demdownload.html that the Feds let sell publicly produced data as long as they provide some data for free. Naturally they throttle your downloads as much as they can get away with to encourage you to buy bandwidth. Fortunately many states have their own sites for GIS pros and state employees and departments. Utahs FTP is here somewhere (I have the link on an unavailable puter) http://agrc.its.state.ut.us/ or http download here- http://waterrights.utah.gov/cgi-bin/quadview.exe I don't have time to search to much but this should get you started. Some day I'll put together all of this info on doing real world terrain stuff and include it as a tut if it seems there is any interest in it. FYI I generally don't bother to much with using VUE's dem import due to the fact that there are so many different types of DEMS vue will only handle one or two types. Best to get MicroDem and 3 DEM (both free ) http://www.visualizationsoftware.com/3dem.html http://www.usna.edu/Users/oceano/pguth/microdem/win32/ and learn how to prepare the data outside of VUE and import it in. Thanks Bot