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Re: DEM and DLG in SDTS
| Re: DEM and DLG in SDTS [message #21725] |
Mon, 18 September 2000 20:33  |
Sylvain Carette
Messages: 19
Registered: May 2000
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Junior Member |
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Glad you say old format was "simple"... :-)
<p>They provide lot of links for sdts specifications and source code for
reader but probably you already know those.
<br>Just in case here anyway:
<br> <a href="http://mcmcweb.er.usgs.gov/sdts/">SDTS Home Page</a>
<br>especially: <a href="http://mcmcweb.er.usgs.gov/sdts/public_domain.html">Public
Domain software</a> where you'll get <a href="http://mcmcweb.er.usgs.gov/sdts/source.html">Support
software for programmers</a> for C and C++ library which you can
"translate" to idl if you feel for it or perhaps just complile them and
use as external module - sdts++ <a href="http://mcmcweb.er.usgs.gov/sdts/sdtsxx/index.html">SDTS++
Home Page</a> can be compiled with gnu g++ so probably the easiest
(and free) solution.
<p>I didnt have to use this format (yet) but I'll agree with you that it
look very complicated.
<p>Sylvain Carette
<br>VRML designer-composer
<p>Kelly Dean wrote:
<blockquote TYPE=CITE> The discussion about DEMs earlier got me thinking
about it again.
<br>Especially, after working with some recent MODIS imagery.
<p> Has anyone been successful with reading the 7.5 min DEMs and the
DLGs
<br>in the Spatial Data Transfer Standard (SDTS) format? USGS has a big
<br>archive of DEMs and DLGs online, but in this binary SDTS format. Not
the
<br>simple ASCII files I have worked with in the past.
<p>Kelly Dean
<br>CSU/CIRA</blockquote>
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