Title: GTOPO30 DEM's problems
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At some point in the
near future we will be releasing a Vertical Mapper utility that will
import GTOPO30 DEMs into the VM grid format.
James Harvie
Vertical Mapper Product Manager
Northwood
Technologies Inc.
43 Auriga Drive, K2E 7Y8
Nepean, Ontario,
Canada
613-224-2020
Supposedly Vertical Mapper can import these. I asked them
months ago how to do it, and don't recall ever getting any
answer.
Steve Wallace
----- Original Message -----
Sent: Thursday, July 27, 2000 10:05
AM
Subject: MI GTOPO30 DEM's
problems
Hi, I'm hoping that someone has had experience
converting usgs GTOPO30 tiles to mapinfo grids. I've checked the usgs FAQ
page and I think it might boil down to one of two issues. First, the dems
are in "Motorola byte order", as opposed to "Intel byte order". The second
is that the GTOPO30 format is 16-bit signed integer data in simple binary
raster format, while the 1-degree usgs dems are in ASCII format. Could it be
that the Mapinfo dem-to-grid tool is expecting ASCII and getting binary? I'd
appreciate any advice on this matter.
cheers,
Tom
Nehrbass
[EMAIL PROTECTED]
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