🚀 go-pugleaf

For the data, do a search USGS geographic data sets
here's a URL for starters:
http://edc.usgs.gov/doc/edchome/ndcdb/ndcdb.html

The data sets are available as grayscale images. Grayscale images can
be converted to height fields with most freeware raytracing software
like POVray and Polyray. I prefer Polyray myself, but POVray is more
widely used and supported.

You could also use the grayscale images to create heightfields in VRML
or Java3D where you have an interactive terrain model (you can move
around in the virtual world)

On Mon, 17 Apr 2000 21:55:36 +0100, "H.M. Hubey"
<hubeyh@mail.montclair.edu> wrote:

>Where and how?
>
>dcasteel@usit.net wrote:
>> 
>> If you want to spend the time to learn you can do all this with
>> freeware and public domain geographic data
>> 
>> On Sun, 16 Apr 2000 19:07:00 +0100, "H.M. Hubey"
>> <hubeyh@mail.montclair.edu> wrote:
>> 
>> >
>> >Years ago I saw a video of a simulated fly-by of the California coast.
>> >
>> >The data from satellites was used to construct the video of what
>> >someone in a space shuttle or airplane would see if the thing
>> >flew around the coast. The number-crunching was done on a super
>> >computer, and then the data was transferred to video-tape.
>> >
>> >Is the pgm available for others to use? IOW, was it done with
>> >NSF money and thus PD?
>> >
>> >Do such pgms exist for other computers?
>> >
>> >Thank you.
>> >
>> >--
>> >Regards, Mark
>> >/\/\/\/\/\....I love humanity. It's people I can't stand...../\/\/\/\/\
>> >==-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-==
>> >hubeyh@mail.montclair.edu =-=-=-=-=-= http://www.csam.montclair.edu/~hubey
>
>-- 
>Regards, Mark
>/\/\/\/\/\....I love humanity. It's people I can't stand...../\/\/\/\/\
>==-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-==
>hubeyh@mail.montclair.edu =-=-=-=-=-= http://www.csam.montclair.edu/~hubey