[Mapserver-users] Using Mapserver & GDAL to find elevation

[Arthur, John]

Not sure, but below is a quote from thier website.  I actual have 25 meter data.

"
Terrain / Heights

Terrain data represents the ground height at any location on the earth, also known as topography. We provide varying resolution terrain data, ranging from 100 meter to 30 meter raster size. Data is acquired for both domestic and international locations through digital sources such as the US Geological Survey and from paper map sources throughout the world. "

-----Original Message-----
From: Ed McNierney [mailto:ed@topozone.com]
Sent: Wednesday, February 11, 2004 5:51 PM
To: Arthur, John; mapserver-users@lists.gis.umn.edu
Cc: warmerdam@pobox.com
Subject: RE: [Mapserver-users] Using Mapserver & GDAL to find elevation


John -

I guess what I'm asking is whether this is USGS NED elevation data or a
different elevation data set.

	- Ed


Ed McNierney
President and Chief Mapmaker
TopoZone.com
-----Original Message-----
From: Arthur, John [mailto:John.Arthur@T-Mobile.com] 
Sent: Wednesday, February 11, 2004 5:46 PM
To: Ed McNierney; mapserver-users@lists.gis.umn.edu
Cc: warmerdam@pobox.com
Subject: RE: [Mapserver-users] Using Mapserver & GDAL to find elevation

Not quite sure what the difference is, but the vender informed me that
it should be a close match to the "ArcInfo Binary Grid".  It is a format
created for a proprietary program.  Either way, the vendor told me he
would convert the data to something else for the cost of labor only.  So
yes, I need to use the same data files, but a different format is fine.
If that makes sense at all. :)

-----Original Message-----
From: Ed McNierney [mailto:ed@topozone.com]
Sent: Wednesday, February 11, 2004 5:32 PM
To: Arthur, John; mapserver-users@lists.gis.umn.edu
Cc: warmerdam@pobox.com
Subject: RE: [Mapserver-users] Using Mapserver & GDAL to find elevation


John -

Is this a proprietary data set, or is it a "commercial" data set that is
in a proprietary format?  That is, might it be possible to get the data
from a different source or in a different format?  Are you absolutely
committed to using these specific data files?

	- Ed

Ed McNierney
President and Chief Mapmaker
TopoZone.com
-----Original Message-----
From: Arthur, John [mailto:John.Arthur@t-mobile.com]
Sent: Wednesday, February 11, 2004 3:00 PM
To: mapserver-users@lists.gis.umn.edu
Cc: 'warmerdam@pobox.com'
Subject: [Mapserver-users] Using Mapserver & GDAL to find elevation

Hello all,

	I have a project where I need to be able to find the ground
elevation of coordinates on the fly.  The file format we have is
supposedly a proprietary format, but I believe it is close to the
"ArcInfo Binary Grid".  How would I go about finding the elevation using
mapscript (or some other way)?  Will mapserver even read this format (by
way of GDAL/OGR)?

Thanks!
- - - - - - - - - - - - - - - - - - - - - - - - - - - - John Arthur
Email: john.arthur@t-mobile.com


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