haviland@emily.uvm.edu (tom haviland) (01/12/90)
I couldn't decide what newsgroup to post this in...graphics and space seem
to be the closest approximation (why isn't there a geography newsgroup?).
I'm interested in 3-d terrain modelling and I'd like to be able to display
images of the terrain in different real areas. Is there any place where one
can get digitized elevation data for various areas of the country (US)?
I tried writing the USGS, but all they sent me was info on topographics maps.
Any help would be greatly appreciated...
tom
Thomas P. Haviland
University of Vermont
haviland@emily.uvm.edu (802)-656-2540
"Knowledge is no substitute for retractability"
Thomas P. Haviland
University of Vermont
haviland@emily.uvm.edu (802)-656-2540
"Knowledge is no substitute for retractability"bseeg@spectra.COM (Bob Seegmiller) (01/16/90)
In article <1375@uvm-gen.UUCP> haviland@emily.uvm.edu (tom haviland) writes: > > I couldn't decide what newsgroup to post this in...graphics and space seem >to be the closest approximation (why isn't there a geography newsgroup?). > > I'm interested in 3-d terrain modelling and I'd like to be able to display >images of the terrain in different real areas. Is there any place where one >can get digitized elevation data for various areas of the country (US)? >I tried writing the USGS, but all they sent me was info on topographics maps. > >Any help would be greatly appreciated... rather a surprise, that USGS would just send you info on topos, as they have quite a collection of digital elevation maps (DEMs) covering the country in both 7.5 second quadrangles and 1 degree DMA (Defense Mapping Agency) data sources. Comes on mag tapes. Ask for their USGeoData information. Some areas include demographic data, as well. And they do send you some very pretty renderings using ERTS images over the elevations in their brochure. Don't know how much it costs, but they'll tell you. Both USGS in Reston, Va. and Palo Alto, Ca. should be able to help. Sorry I don't have addresses on hand, but they do advertise this product in _Computer Graphics World (Today?)_ trade magazine (the big glossy newspaper-sized one). -- /----------------------------------------+-------------------------------------\ | Bob Seegmiller <The usual disclaimer> | Spectragraphics Corp. | | "Till human voices wake us..." - Eliot | ..................... | | UUCP: ...!nosc!spectra!bseeg | Sandy Eggo, CA ...... |