[Gdal-dev] Re: reprojection feet instead of meters

Ed McNierney ed at topozone.com
Wed Jun 9 13:31:41 EDT 2004


Jason -

Sorry - you beat me to it!  Since the epsg:26912 projection is DEFINED
to be in meters, you did the right thing by copying the parameters
associated with that projection and creating your own custom projection
definition to match it.

	- Ed

Ed McNierney
President and Chief Mapmaker
TopoZone.com / Maps a la carte, Inc.
73 Princeton Street, Suite 305
North Chelmsford, MA  01863
ed at topozone.com
(978) 251-4242  

-----Original Message-----
From: gdal-dev-admin at remotesensing.org
[mailto:gdal-dev-admin at remotesensing.org] On Behalf Of jason
Sent: Wednesday, June 09, 2004 1:11 PM
To: gdal-dev at remotesensing.org
Subject: [Gdal-dev] Re: reprojection feet instead of meters

On Wed, 09 Jun 2004 10:21:28 -0600, jason wrote:

> I am reprojecting some NED data:
> 
> gdalwarp -s_srs epsg:4326 -t_srs epsg:26912 id1.img id1x.img -of HFA
> 
> but the 26912 system is in meters. Is there and easy way to specify 
> during that conversion to produce the img file in US Survey Feet
instead?
> 
> Thanks.

nm. Got it to work. I was using the incorrect syntax before hand.

gdalwarp -s_srs epsg:4326 -t_srs "+proj=utm +zone=12 +ellps=GRS80
+datum=NAD83 +units=us-ft" id1.img id1x.img -of HFA

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