[GRASS-user] mosaic raster files

[Jamie Adams]

If you have GDAL 1.6 installed, you can use gdalbuildvrt to create a VRT of
the files, and then link to this using r.external.  This way you have a
mosaic without duplicating the data.

On Thu, Jul 2, 2009 at 7:53 AM, Milton Cezar Ribeiro <
miltinho.astronauta at gmail.com> wrote:

> Hi Guys,
>
> I will try first download the latest SVN. In fact I am running a compiled
> version of 6.4R4, and I remember, on that time, few programs (like r.patch
> if I am not wrong) not compiled properly. Case it not work, I try r.series.
>
> Thanks a lot,
>
> milton
>
> 2009/7/2 Hamish <hamish_b at yahoo.com>
>
>>
>> Milton Cezar Ribeiro wrote:
>> > I just downloaded some tiles from GDEM/NASA and imported on GRASS.
>> > Now I would like to generate a mosaic with the tiles,
>> > but unfortunatelly r.patch (
>> http://grass.itc.it/gdp/html_grass63/r.patch.html )
>> > is not compiled for GRASS 6.4R4 (windows / vista).
>>
>> Which installer?
>>
>> really there is nothing special about r.patch so it is a bad sign that
>> it would be missing. what if you install RC5 or the SVN snapshot binary
>> from June 2?
>>
>>
>> > So is there a way of I join a list of rasters on a unique mosaic file?
>>
>> r.series and r.mapcalc should both be able to do the job, but not as
>> simply.
>>
>> use 'g.region rast=tile1,tile2,tile3,tile5' first to set the computational
>> region to the outside bounds of all the tiles listed.
>>
>>
>> Hamish
>>
>>
>>
>>
>>
>>
>
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