I forgot to cc to the list before... so once again, and this time more
clear:
* check the projection system information of your tif file with gdalinfo
from the commandline.
(man gdalinfo for help)
* and then... (the message I forgot to cc to the list):
You have to know in which coordinate system your "nf42_geo.tif" data is
projected. If you are sure that your data is projected in the coordinate
system which you assigned in your LOCATION
(with g.region -o you get that info as well)
then just use an extra option to ignore these errors:
-o in the commald line or the respective box in the GUI "Override
projection"
e.g. CLI: > r.in.gdal -e -o in=nf42_geo.tif out=tm
By the way,
it is very helpful and saves time and energy to consult tha help pages
always. There are (almost) always the necessary examples and
explanations.
On Wed, 2008-02-13 at 15:05 +0530, Kunal Malik wrote:
Hi!!
I have done the things required.
but from the command line ,when i am using r.in.gdal -e
-n=nf42_geo.tif out=tm ..
I am getting the message
WARNING: Datum 'unknown' not recognised by GRASS and no parameters
found.
Datum transformation will not be possible using this
projection
information.
ERROR: Projection of dataset does not appear to match current
location.
Same messge is coming when I am doing the same through GIS Manager..
Can u help me i this Regards..so that i could open the avalible TIf
image
On 2/13/08, Nikos Alexandris <nikos.alexandris@felis.uni-freiburg.de>
wrote:
Hi!
(Assuming you have created a LOCATION based on the coordinate
system in
which you want to work and in which your data is projected...)
* Using r.in.gdal from the command line or from the
GUI under
"File>Impor> Raster map> Multiple formats using GDAL"
* Important is to check the extent and the resolution of your
current
working "region". If these settings are not the proper ones
the you
don't see anything cause your data are somewhere out of your
"screen"
but still inside your LOCATION.
a. With "g.region -p" in the command line
or "Config>Region>Display
region settings" you can check the current seetings.
b. Fastest way is to tell r.in.gdal to "extend location
extents based
on new dataset" (either with r.in.gdal -e input=... output=...
and the
rest or by checking the respective option in the GUI of
r.in.gdal)
Hope this helps you a bit...
On Wed, 2008-02-13 at 09:32 +0530, Kunal Malik wrote:
> I am a new grass user,I have Installed the grass-6.2.3 on my
> system.but i m not able to Import & display the raster
image.(Tiff
> Image) which is kept on my hard disk 50 mb in size..
> could anyone tell the way to see the raster image,i am
looking for the
> standard document for using grass.if anyone having this
> document,please forward it to me..
> Thanks in Advanc
>
> On 2/13/08, Kunal Malik <kunal.malik81@gmail.com> wrote:
> I am a new grass user,I have Installed the
grass-6.2.3 on my
> system.but i m not able to Import & display the
raster
> image.(Tiff Image)
> could anyone tell the way to see the raster image,i
am looking
> for the standard document for using grass.if anyone
having
> this document,please forward it to me..
> Thanks in Advanc
>
> --
> Thanks & Regards
>
> Kunal Malik
> 09871147561
>
>
>
> --
> Thanks & Regards
>
> Kunal Malik
> 09871147561
> _______________________________________________
> grass-user mailing list
> grass-user@lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/grass-user
--
Nikos Alexandris
.
Department of Remote Sensing & Landscape Information Systems
Faculty of Forestry & Environmental Sciences,
Albert-Ludwigs-University Freiburg
.
Tel. +49 (0) 761 203 3697 / Fax. +49 (0) 761 203 3701 /
Skype: Nikos.Alexandris
.
Address: Tennenbacher str. 4, D-79106 Freiburg i. Br., Germany
--
Thanks & Regards
Kunal Malik
09871147561
--
Nikos Alexandris
.
Department of Remote Sensing & Landscape Information Systems
Faculty of Forestry & Environmental Sciences, Albert-Ludwigs-University Freiburg
.
Tel. +49 (0) 761 203 3697 / Fax. +49 (0) 761 203 3701 / Skype: Nikos.Alexandris
.
Address: Tennenbacher str. 4, D-79106 Freiburg i. Br., Germany