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Re: Adding scale, offset, units metadata to geotiff

On 7/13/05, Rob Raskin <raskin@xxxxxxxxxxxxxxxxxxxx> wrote:
GeoTIFF alrady includes the option for scale and offset in the
"z-direction".  But most client tools (including ArcGIS) ignore that
tag.

It isn't clear why this information was added to the private GDAL tag.

Rob,

Are you suggesting that the "z" direction of the geotransmatrix is intendeded to be interpreted as offset and scaling for pixel values? I never took it that way in the past.
Perhaps you mean something else, and could clarify.

Best regards,
--
---------------------------------------+--------------------------------------
I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam@xxxxxxxxx
light and sound - activate the windows | http://pobox.com/~warmerdam
and watch the world go round - Rush    | Geospatial Programmer for Rent


 
 
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