database creation

1??95?12?07?39?pm@bnr.ca>
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Conrad wrote,

Hello,
   I'm having trouble importing a raster image that was exported
from IDRISI with the GRASSIDR module in GRASS4.1. The IDRISI exported
file is in ascii format, which should be able to be imported into GRASS
with the r.in.ascii command. The problem could be that the MAPSET doesn't
have a determined coordinate region. Is this a possibility or could the
problem be that the location and mapset settings are wrong.
   I've tried the r.in.ascii command and the system appears to perform
the operation, but the resultant output file is never created. The
syntax of the line that I entered is:
r.in.ascii input=file output=file1 [title="file1"] [mult=1.0].
   Has anyone experienced a similar problem ? I would appreciate any
suggessions that may help solve my problem.
Thanks in advance.

                                                     CONRAD POWER
                                
                                  E-mail: ccpower@ganymede.cs.mun.ca

I never had any problems doing a conversion from a IDRISI raster image to
GRASS. You have to be sure that your MAPSET has the right coordinate region.
If not, the file would be imported, but you couldn't display it on your
graphics monitor. Try to assign the right coordinate region with the
g.region command: g.region rast=<idris_image> and d.erase. If you can
display your IDRISI image after this procedure, the only problem was the
wrong region settings.

Hope this helps ... :wink:

Hartmut
--
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Hartmut Guendra
Geographisches Institut
Universitaet Heidelberg Phone: (+49)-6221-564576
INF 348 FAX : (+49)-6221-564996
69120 Heidelberg email: hartmut@geo0.geog.uni-heidelberg.de
Germany
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