[Gdal-dev] GMT & GDAL Geotiff grid registration

[Frank Warmerdam]

On 11/18/05, Rich Signell <rsignell at usgs.gov> wrote:
> In case this is really a missing feature, the PIXEL vs. LINE
> registration of a GMT file is really easy to check.  You just read
> the "node_offset" attribute of the grid variable.
>
> If node_offset=0, it's LINE
> If node_offset=1, it's PIXEL

Rich,

You are suggesting the node_offset on the "z"
variable should be examined to determine if the x and
y locations are relative to the top left corner of the pixel or
the center?  Why the terminology of "LINE" vs. "PIXEL"?

If you can provide the file in question, I'll see what I can do.

Best regards,
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