[Angus Carr]

> From:          "Nicola Fohrer" <Nicola.Fohrer at agrar.uni-giessen.de>
> I have created a map (DEM) in Erdas by reading an ASCII-File. The
> data type is Float Single and the projection is Transverse Mercator.
> Exporting this map as a Grass-file, Erdas gives the warning that
> float data can only be exported as integer. If I accept and create a
> location and mapset it can only be imported into Grass without any
> projection (plane) although it is exported as Transverse Mercator.
> 1. Is Grass not able to manage float data maps ? 2. How can I save
> the projection TM during the transfer from Erdas to 
>     Grass ?

GRASS is unable to use floating point maps unless you have compiled 
in the floating point extensions. I seem to recall one of the Solaris 
compiles has them compiled in, but I don't know.

The TM projection is set when you create the location, not when you 
import a file.

Good Luck!

Angus Carr.