[GRASS-user] re: r.out.gdal Terragen format

GRASS GRASS user
,
1

Hello,

I’m attempting to export a DEM to a terragen file and I’ve run into the following error message.

ERROR 1: Inverted, flat, or unspecified span for Terragen file.

There isn’t a great deal of lit in the manual regarding terragen exports, and I’m wondering if anyone has any personal experience doing it, or knows a better method.

Patrick Dolan
Dept. of Anthropology
Washington State University

2

patrick dolan wrote:

Hello,

I'm attempting to export a DEM to a terragen file and I've run into the
following error message.

ERROR 1: Inverted, flat, or unspecified span for Terragen file.

Maybe the span of elevation values was not specified?
From
http://www.gdal.org/frmt_terragen.html
Set the MINUSERPIXELVALUE option (a float) to the lowest elevation of
your elevation data, and MAXUSERPIXELVALUE to the highest.

There isn't a great deal of lit in the manual regarding terragen exports,
and I'm wondering if anyone has any personal experience doing it, or knows a
better method.

Patrick Dolan
Dept. of Anthropology
Washington State University

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