[GRASS-user] new to GRASS

[savitri negi]

  hi all
can anybody tell me what is command d.extend used for ?
till ystrday i was nt able to display  a .tif file even after setting region for raster but then i gave the d.extend command after d.rast and was able to display the image on x mon0
I dont know if d.extend really helped to display the contents of the .tif image as earlier i was just able tos ee a black screen on the xmon 
not the contents..
anyways thanx to all 
i am able to display the image now ,n now trying to explore more of GRASS
savitri
DEAL,India





On Mon, 22 Jan 2007 Otto Dassau wrote :
>Hi,
>
>On 22 Jan 2007 07:18:00 -0000
>"savitri  negi" <savitrinegi1 at rediffmail.com> wrote:
> > hello all
> > iam quite new to GRASS infact i started it jst a few days back
> >
> > i downloaded  the source GRASS 6.2.1 source code n compiled it on my redhat
>enterprise linux machine and i was able to start GRASS
> > n started using it.
> > i also istalled the two mandatory gdal n other library
> >
> > now say i want to display just a .tif image i did the following
> > i selected the database   a location and a mapset at startup screen after
>which i was able to see the GIS manager GUI
> > i have got say a .tif image.
> > 1  ..converted the .tif image into raster using r.in.gdal input=filename.tif
>output =output raster image name
> > 2  ..started the monitor x0 as d.mon x0
>
>using d.mon you might need a further step here to set the extend of your current
>region to the tif before you display it.
>
>g.region rast=output_raster_image_name
>
>hth,
>  Otto
>
> > 3  ...tried to diplay image on mon using d.rast= outut raster image name
> >
> >  but iam unable to see anything in the x0 monitor  though the whole process
>dint showd any errors
> > though wen i change the background  color in d.rast window i can see a
>coloured surface of size of my original image on x0 but not the real image
> > ,being quite new to the GIS field iam not able to figure out wat am i missing
>.
> > right now i just wanted to display a tif image  or may be a .img file on the
>monitorr
> > which iam not able to do
> > may be anyone of u could help
> >
> >
> > Savitri negi
> > DEAL,india
>
>
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